CN108492731B - Portable and foldable LED warning screen - Google Patents
Portable and foldable LED warning screen Download PDFInfo
- Publication number
- CN108492731B CN108492731B CN201810616909.8A CN201810616909A CN108492731B CN 108492731 B CN108492731 B CN 108492731B CN 201810616909 A CN201810616909 A CN 201810616909A CN 108492731 B CN108492731 B CN 108492731B
- Authority
- CN
- China
- Prior art keywords
- display screen
- module
- hand wheel
- hollow hinge
- section bar
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000009423 ventilation Methods 0.000 claims abstract description 30
- 238000004891 communication Methods 0.000 claims abstract description 15
- 238000009434 installation Methods 0.000 claims description 24
- 238000001514 detection method Methods 0.000 claims description 14
- 238000012544 monitoring process Methods 0.000 claims description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 241001391944 Commicarpus scandens Species 0.000 abstract 1
- 230000000007 visual effect Effects 0.000 description 7
- 230000006378 damage Effects 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000012528 membrane Substances 0.000 description 3
- 239000003381 stabilizer Substances 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/33—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being semiconductor devices, e.g. diodes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
- F16M11/02—Heads
- F16M11/04—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
- F16M11/20—Undercarriages with or without wheels
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Road Signs Or Road Markings (AREA)
Abstract
The utility model provides a portable collapsible LED warning screen, the problem that prior art structure is complicated, with high costs and increase product weight and easy to break down and stability when expanding the back and standing on ground is relatively poor, characterized by that left side casing and right side casing's upper and lower both ends are articulated through hollow hinge cover and hollow hinge axle, be equipped with the first ventilation relief hole in middle part and the second ventilation relief hole at upper and lower both ends respectively on left side casing and right side casing's panel symmetrically, electric connection and communication connection are carried out through the power cord or the data line of installing in hollow hinge cover and hollow hinge axle between main display screen and the vice display screen, install the hinge pole through last hand wheel nut respectively in left side casing and right side casing's lower extreme lateral surface, install 2 landing legs around the lower extreme of hinge pole through lower hand wheel nut, and the beneficial effect is, simple structure, portable, with low costs, light in weight, high reliability and stability are good, and the warning screen highly can adjust at will and slide at random locking location.
Description
Technical Field
The invention belongs to a warning device, and particularly relates to a portable foldable LED warning screen.
Background
When various conditions such as construction, rescue, temporary maintenance need be temporarily sealed on the road, warning protective equipment such as a light-reflecting cone, a warning sign or a guardrail is generally used for guaranteeing the safety of the sealed road conditions, but the light-reflecting effect is poor because the surfaces of the guardrail and the light-reflecting materials of the light-reflecting cone are stained, the normal light-reflecting effect cannot be exerted, and the sight of a driver is poor because of severe weather such as rain and fog, so that vehicles break into a temporary sealing area, and great harm is brought to on-site workers in the temporary sealing area. The invention discloses a portable foldable LED display screen with the application number of CN201310053042.7, which comprises a foldable box body, wherein the foldable box body comprises a left half box body and a right half box body which are hinged, the portable foldable LED display screen comprises a first LED display screen and a second LED display screen, and the first LED display screen and the second LED display screen are symmetrically arranged on the front surface of the left half box body and the front surface of the right half box body respectively; the first LED display screen is closely adjacent to the second LED display screen, wireless communication connection is established between the first screen-to-screen wireless communication module and the second screen-to-screen wireless communication module, and the first LED display screen and the second LED display screen are cooperated. The invention is used for releasing and warning temporary information on roads, can be stored in the box body after being folded, is convenient to carry, can be placed on the road in front of the temporary sealing area after being unfolded, and uses luminous characters or graphic symbols to warn the passing vehicle to run at a reduced speed; when the vehicle collides with the portable foldable LED display screen by mistake or breaks into the temporary enclosed area by mistake, an alarm signal can be sent out wirelessly. However, as is clear from a careful analysis of the technical solution of the invention, the invention has the following problems:
(1) According to the invention, data interaction is performed between the first LED display screen and the second LED display screen in a wireless communication mode, and fatigue damage of an electric connection is avoided, but a set of control system is needed to be arranged in each of the two LED display screens, so that two sets of control modules, two sets of wireless communication modules between the two sets of LED display screens, two sets of charge and discharge modules and two sets of battery packs are needed.
(2) In order to increase the stability of the folding box body when standing on the ground after being unfolded, the back surfaces of the left half box body and the right half box body are respectively provided with a supporting frame; the support frame can be unfolded according to a required angle, and is tightly attached to the back of the folding box body after being folded, so that the support frame can be unfolded to support the box body when the folding box is used on site. However, in the support frame structure adopted by the invention, when the display screen is unfolded and then is erected on the ground, the display screen cannot be perpendicular to the ground and cannot leave the ground, that is, the height position of the LED display screen when the display screen is unfolded and then is erected on the ground is fixed and inclined, so that the visual effect is influenced, and the warning effect is influenced; in addition, the invention only sets a supporting frame on the back of the left half box and the right half box, that is, the invention only has a back support, the front is not supported, when the LED display screen is unfolded and then stands on the ground, if wind comes from the back, the wind is easily blown down, thereby influencing the stability of the folding box when standing on the ground after being unfolded.
(3) The invention considers that the wind power can be larger in the field of the temporary sealing area sometimes, so one or more weight sandbags are arranged on the back of the folding box body, one end of the connecting rope is fixed on the top of the back of the folding box body, and the other end of the connecting rope is connected with the weight sandbags.
In order to solve the problems that the LED display screen of the invention of CN201310053042.7 is only supported at the rear and is not supported at the front when being unfolded and standing on the ground, the invention of the application number CN201610036228.5 discloses a portable fire-fighting warning device, the invention comprises a cuboid-shaped warning screen, a lifting handle is arranged on the top surface of the warning screen, two sides of the warning screen are clamped in two fixing plates at the upper part of a supporting frame body, two rectangular sleeves are arranged on the outer sides of the fixing plates along the vertical direction, a rectangular groove is formed in the middle of the two rectangular sleeves, the lower ends of the rectangular grooves are movably connected, the upper ends of the rectangular sleeves are outwards folded, two U-shaped frames are arranged at the lower part of the supporting frame body, two side rods of each U-shaped frame respectively slide in from the bottom openings of the two side rectangular sleeves of the warning screen, the connecting parts of the U-shaped frames are arranged at the lower part of the warning screen, pedals are connected on the connecting parts, the side surfaces of the warning screen are provided with telescopic U-shaped frames and the folding rods, the warning screen is supported from the front side, the rear side, the left side and the right side respectively, the warning screen can leave the ground and is perpendicular to the ground, but the structure of the support frame body is complex, the use is inconvenient, particularly, two rectangular sleeves are arranged on the outer side of the fixing plate along the vertical direction, a rectangular groove is formed in the middle of the two rectangular sleeves, two U-shaped frames are arranged at the lower part of the support frame body, two side rods of the U-shaped frames slide in from bottom openings of the rectangular sleeves on the two side surfaces of the warning screen respectively, the structure increases the weight of a product, the rectangular groove formed in the middle of the two rectangular sleeves is only a storage space of a folding rod, the lower end of the folding rod is movably connected in the rectangular groove, the upper end of the folding rod is outwards folded, and in an unfolding state, the connection between the folding rod and the fixing plate and the two U-shaped frames and the two rectangular sleeves is in a hinged state and is in a single-point hinge, it is difficult to ensure the stability of the warning screen, and the height of the warning screen cannot be adjusted at will.
Disclosure of Invention
The invention aims to solve the technical problem and overcome the defects of the prior art, and provides the portable foldable LED warning screen which has the advantages of simple structure, low cost, high reliability, light weight of the whole structure, good stability and randomly adjustable height.
The technical scheme includes that the LED display device comprises a left shell, a main display screen, an auxiliary display screen, a right shell and a control system, wherein a circle of interval LED lamp mounting holes are formed in the panels of the left shell and the right shell around the main display screen and the auxiliary display screen, LED lamps are mounted on the LED display device, the upper end and the lower end of the left shell and the lower end of the right shell are hinged through hollow hinge sleeves and hollow hinge shafts, first ventilation and pressure relief holes in the middle and second ventilation and pressure relief holes in the upper end and the lower end are symmetrically formed in the panels of the left shell and the right shell, display screen mounting spaces are symmetrically formed between the first ventilation and pressure relief holes in the left shell and the second ventilation and pressure relief holes in the upper end and the lower end of the right shell, the main display screen and the auxiliary display screen are symmetrically mounted in an embedded mode in the display screen mounting spaces, electric connection and communication connection are performed between the main display screen and the auxiliary display screen through power wires or data wires which are mounted in the hollow hinge sleeves and the hollow hinge shafts in a hidden mode, hinge rods are mounted on the outer side surfaces of the lower ends of the left shell and the right shell respectively through upper hand wheel nuts, and the lower hand wheel nuts are mounted on the lower end of the hinge rods respectively.
The lower extreme of landing leg is installed the stabilizer blade, installs on the stabilizer blade and can pedal the spike, installs the connecting rod between 2 stabilizer blades in front and back, the connecting rod includes left connecting rod and right connecting rod, articulates through the round pin axle between left connecting rod and the right connecting rod.
The lower extreme lateral surface of left side casing and right casing is gone up and is installed 2 hinge poles around respectively through last hand wheel nut, and the upper end of 2 hinge poles around is through second rivet connection, and 2 landing legs around the lower extreme of 2 hinge poles around is installed through lower hand wheel nut, and 2 landing legs are connected with the hinge pole around will through 2 first rivets simultaneously.
The upper hand wheel nut and the lower hand wheel nut are respectively composed of a hand wheel and a nut integrated with the hand wheel, the nut sleeves of the upper hand wheel nut and the lower hand wheel nut are internally and in threaded connection with T-shaped screws, a third section bar is installed at the other end of each T-shaped screw, the third section bar is provided with a first slide way and a second slide way, the first section bar is installed in the first slide way, the second section bar is installed in the second slide way, sliding gaps are reserved between the contact surfaces of the first section bar and the third section bar and between the contact surfaces of the second section bar and the third section bar, the first section bar, the third section bar, the second section bar and the third section bar form sliding connection, the first section bar, the second section bar can slide up and down along the first slide way and the second slide way respectively through adjusting the upper hand wheel nut and the lower hand wheel nut, random locking and positioning of the upper hand wheel nut and the T-shaped screws are realized at any height, and random adjustment of the heights of a main display screen and an auxiliary display screen is realized.
The front of left side casing is equipped with left casing panel for installing reflective membrane and hollow hinge cover and hollow hinge axle's G shape recess, is equipped with the left casing lamp hole that is used for installing the LED lamp on the G shape recess, is equipped with the main display screen mounting panel that is used for installing main display screen in G shape recess bottom be equipped with right casing panel in the front of right side casing, be used for installing reflective membrane and hollow hinge cover and hollow hinge axle's anti-G shape recess, be equipped with the right casing lamp hole that is used for installing the LED lamp on anti-G shape recess, be equipped with the vice display screen mounting panel that is used for installing vice display screen in anti-G shape recess bottom main display screen and vice display screen are embedded after the display screen installation space symmetrically, because left casing panel, G shape recess and main display screen mounting panel are echelonment, and right casing panel, anti-G shape recess and vice display screen mounting panel are also symmetrical echelonment for main display screen and vice display screen's installation space periphery forms the arch that plays the guard action to main display screen and vice display screen.
The back of left side casing is equipped with charger space, reserve space, circuit board installation space, battery installation space and radar installation space, installs the charger in the charger space during the use, installs the circuit board in circuit board installation space, installs the battery in battery installation space, installs the radar in radar installation space.
The hollow hinge sleeve and the hollow hinge shaft are used in pairs, the hollow hinge sleeve comprises a shaft sleeve with a stepped blind hole inside and a first hinge connecting plate integrated with the shaft sleeve and provided with a connecting hole, and a first wire passing hole is processed on the outer wall of the shaft sleeve; the hollow hinge shaft comprises a stepped shaft with a straight-through blind hole inside and a hinge connecting plate integrated with the stepped shaft and provided with a connecting hole, a second wire passing hole is processed on the outer wall of the stepped shaft with the straight-through blind hole, a signal data wire is arranged in the hollow hinge sleeve and the hollow hinge shaft which are used in pairs at the upper end in a hidden mode for communication connection, and a power wire is arranged in the hollow hinge sleeve and the hollow hinge shaft which are used in pairs at the lower end in a hidden mode for electric connection.
And a circle of spaced LED lamp mounting holes are formed on the panels of the left shell and the right shell around the main display screen and the auxiliary display screen, and reflective films are correspondingly arranged.
The control system comprises a main control module, an input module connected with the main control module and an output module connected with the main control module, wherein the input module comprises a WIFI module, a GSM module, a handwriting board module, a radar module, a vehicle collision detection module, a vehicle intrusion detection module, a battery pack, low-voltage monitoring, a charging module, a power key, an upturning key, a downturning key and a function key, and the output module comprises an audible and visual alarm module, a display control module, an LED main display module, an LED auxiliary display module, a wireless module and a wireless alarm module; when the LED display device is used, when the WIFI module, the GSM module and the handwriting board module receive display screen text change information from operators, data are sent to the main control module, after the main control module receives the data, the data are sent to the display control module, and the display module controls the LED main display module and the LED auxiliary display module to change the display output content; when a function key is pressed down to start a radar module, radar acquisition data are sent to a main control module, the main control module judges whether an oncoming vehicle has overspeed behavior according to the data provided by the radar module, if the vehicle overspeed main control module sends speed information to a display control module, an LED main display module and an LED auxiliary display module are controlled by the display module to display the driving speed of the oncoming vehicle, and meanwhile, the main control module sends alarm signals to an acousto-optic alarm module and a wireless module, the acousto-optic alarm module sends acousto-optic alarm information, and meanwhile, the wireless module sends wireless alarm signals to a wireless alarm, and when the wireless alarm receives the wireless alarm signals, an acousto-optic alarm is sent at the same time to prompt that the vehicle is in overspeed running on a road surface; when the voltage of the battery pack is detected and monitored by the low voltage detection, a low voltage signal is sent to the main control module, the main control module cuts off power supply of all other devices, the low voltage signal is sent to the sound-light warning module, and the sound-light warning module sends out a low voltage sound-light warning signal; when the vehicle collision detection module and the vehicle intrusion detection module detect that a vehicle intrudes, the vehicle intrusion signal is sent to the main control module, the main control module sends the vehicle intrusion signal to the wireless module audible and visual alarm module, the audible and visual alarm module sends out audible and visual alarm information, the wireless module sends out a wireless alarm signal to the wireless alarm module, and the wireless alarm module receives the wireless alarm signal and simultaneously sends out audible and visual alarms; when the up-turning key or the down-turning key is pressed, a signal is sent to the main control module, and the main control module sends the signal to the display control module to control the LED main display module and the LED auxiliary display module to display contents; when the function key is pressed, a signal is sent to the main control module to control the function of the radar module to be started or stopped; the power key controls the battery pack to start or stop supplying power to the main control module; the battery pack is controlled by the power key and output to the main control module, and the main control module outputs to supply power to the whole system equipment.
Compared with the prior art, the invention has the beneficial effects that:
(1) The upper end and the lower end of the left shell and the lower end of the right shell are hinged through the hollow hinge sleeves and the hollow hinge shafts, the hollow hinge sleeves and the hollow hinge shafts which are used in pairs at the upper end are in communication connection, the hollow hinge sleeves and the hollow hinge shafts which are used in pairs at the lower end are in electric connection with each other by the power supply wires which are arranged in the hollow hinge sleeves and the hollow hinge shafts in a hidden mode, fatigue damage caused by the exposure of electric wires is avoided, and the shaft sleeve with the stepped blind hole inside and the stepped shaft with the straight-through blind hole inside can also play a role in preventing water and dust.
(2) The panel of the left shell and the panel of the right shell are respectively and symmetrically provided with a first ventilation and pressure relief hole in the middle and a second ventilation and pressure relief hole at the upper end and the lower end, a display screen installation space is symmetrically arranged between the first ventilation and pressure relief hole of the left shell and the first ventilation and pressure relief hole of the right shell and the second ventilation and pressure relief hole at the upper end and the lower end, the periphery of the display screen installation space is convex, a main display screen and an auxiliary display screen are symmetrically and embedded in the display screen installation space, the periphery of the display screen installation space is convex, the main display screen and the auxiliary display screen can be protected, the first ventilation and pressure relief hole in the middle and the second ventilation and pressure relief hole at the upper end and the lower end can be prevented from being blown down by wind when the panel is unfolded and then is erected on the ground, and no matter whether the front wind comes or the rear wind comes, the panel can pass through the first ventilation and the second ventilation and pressure relief hole at the upper end and the lower end of the middle, and the wind pressure is relieved; meanwhile, the first ventilation and pressure relief hole in the middle part can be used as a handle, so that the handle can be omitted from being mounted on the panel of the shell, and the portable electronic device is more convenient to carry.
(3) According to the invention, the outer side surfaces of the lower ends of the left shell and the right shell are respectively hinged with the hinge rod through the upper hand wheel nuts, the lower end of the hinge rod is hinged with the front and rear 2 support legs through the lower hand wheel nuts, meanwhile, the front and rear 2 support legs are fixedly connected with the hinge rod through the first rivet and the second rivet, the left connecting rod and the right connecting rod are arranged between the front and rear 2 support legs, and the left connecting rod and the right connecting rod are hinged through the pin shafts.
(4) According to the invention, the T-shaped screw is connected in the nut sleeve of the upper hand wheel nut and the lower hand wheel nut in a threaded manner, the third section bar is arranged at the other end of the T-shaped screw, the third section bar is provided with the first slide way and the second slide way, the first section bar is arranged in the first slide way, the second section bar is arranged in the second slide way, sliding gaps are respectively arranged between the contact surfaces of the first section bar and the third section bar and between the contact surfaces of the second section bar and the third section bar, so that the first section bar, the third section bar and the third section bar are in sliding connection, and meanwhile, the random sliding locking positioning of the upper hand wheel nut and the lower hand wheel nut is realized through the T-shaped screw which is connected in the nut sleeve of the upper hand wheel nut and the lower hand wheel nut in a threaded manner.
(5) Compared with the prior art, the control system of the invention saves one set of control module, one set of charge-discharge module and one set of battery pack as the auxiliary display screen is driven by the power line and the signal data line which are directly connected with the main display screen, and a wireless communication module is not required to be arranged between the two sets of screens, thereby saving the cost and the weight of products.
Drawings
Figure 1 is a schematic perspective view of the invention after deployment,
figure 2 is a front view of the present invention,
figure 3 is a right side view of figure 2,
figure 4 is a top view of figure 2,
figure 5 is an enlarged view of a portion of figure 3 at a,
figure 6 is a cross-sectional view of B-B of figure 5,
figure 7 is a front perspective view of the housing of the present invention,
figure 8 is a rear perspective view of the housing of the present invention,
FIG. 9 is a front view of the hollow hinge of the present invention;
figure 10 is a cross-sectional view of figure 9C-C,
figure 11 is a D-D cross-sectional view of figure 9,
fig. 12 is a block diagram of a control system of the present invention.
In the figure:
1. a left shell body, a right shell body and a left shell body,
1-1. Left housing panel, 1-2.G shaped grooves,
1-3, left shell lamp hole, 1-4, main display screen mounting plate,
2. a main display screen, a secondary display screen,
4. a right shell body,
4-1, right shell panel, 4-2, reverse G-shaped groove,
4-3, right shell lamp hole, 4-4, display screen mounting plate,
5. a reflective film, a 6-LED lamp,
7. a first ventilation and pressure relief hole 8. A second ventilation and pressure relief hole,
9. an upper hand wheel nut, a lower hand wheel nut,
11. the hollow hinge sleeve is provided with a hollow hinge sleeve,
11-1, a shaft sleeve, 11-2, a first hinge connecting plate, 11-3, a first wire passing hole,
12. a hollow hinge shaft,
12-1, a stepped shaft, 12-2, a second hinge connection plate, 12-3, a second via hole,
13. the hinge rod, 14. The support leg,
15. the connecting rod is provided with a connecting rod,
15-1, a left connecting rod, 15-2, a right connecting rod, 15-3, a pin shaft,
16. the first rivet, 17, the second rivet,
t-screws, 19, first profile,
20. a second profile, 21 a third profile,
22. the second slideway, 23. The first slideway,
24. legs, 25, can be used for stepping on the nails,
26. charger space, 27. Reserved space,
28. a circuit board mounting space, 29, a battery mounting space,
30. the radar installation space, 31, back plate,
32. the control system is used for controlling the control system,
100. the main control module, the 101.WIFI module,
a gsm module, 103, a handwriting pad module,
104. a radar module, 105. An acousto-optic warning module,
106. the display control module is used for displaying the display information of the display device,
a 1061.Led primary display module, a 1062.Led secondary display module,
107. a vehicle collision detection module, 108 a vehicle intrusion detection module,
109. a wireless module 1091. A wireless alarm module,
110. the battery, 111, low voltage monitoring,
112. a charging module 113, a power button,
114. the up-turn button, 115. The down-turn button,
116. function keys.
Description of the embodiments
The invention will be further described with reference to the following specific drawings and examples.
As shown in fig. 1-4 and 12, the technical scheme adopted by the invention comprises a left shell 1, a right shell 4 and a control system 32, wherein the upper end and the lower end of the left shell 1 and the right shell 4 are hinged through a hollow hinge sleeve 11 and a hollow hinge shaft 12, a main display screen 2 and a secondary display screen 3 are respectively and symmetrically arranged on the panels of the left shell 1 and the right shell 4, and the main display screen 2 and the secondary display screen 3 are electrically connected and communicated through power lines or data lines which are arranged in the hollow hinge sleeve 11 and the hollow hinge shaft 12 in a hidden manner; a circle of spaced LED lamp mounting holes are formed on the panels of the left shell 1 and the right shell 4 around the main display screen 2 and the auxiliary display screen 3, reflective films 5 are correspondingly arranged in the LED lamp mounting holes, LED lamps 6 are arranged in the LED lamp mounting holes, hinge rods 13 are respectively arranged on the outer side surfaces of the lower ends of the left shell 1 and the right shell 4 through upper hand wheel nuts 9, front and rear 2 support legs 14 are arranged at the lower ends of the hinge rods 13 through lower hand wheel nuts 10, supporting legs 24 are arranged at the lower ends of the support legs 14, foot-treadable nails 25 are arranged on the supporting legs 24, and connecting rods 15 are arranged between the front and rear 2 support legs 14; as shown in fig. 3 and 4, a back plate 31 is mounted on the back surfaces of the left and right cases 1 and 4;
as shown in fig. 5, front and rear 2 hinge rods 13 are respectively mounted on the outer sides of the lower ends of the left and right shells 1 and 4 through upper hand wheel nuts 9, the upper ends of the front and rear 2 hinge rods 13 are connected through second rivets 17, front and rear 2 support legs 14 are mounted on the lower ends of the front and rear 2 hinge rods 13 through lower hand wheel nuts 10, and simultaneously the front and rear 2 support legs 14 are connected with the hinge rods 13 through first rivets 16, the connecting rod 15 comprises a left connecting rod 15-1 and a right connecting rod 15-2, and the left connecting rod 15-1 and the right connecting rod 15-2 are hinged through a pin shaft 15-3;
as shown in fig. 6, the upper hand wheel nut 9 is composed of a hand wheel and a nut integrated with the hand wheel, the lower hand wheel nut 10 is consistent with the upper hand wheel nut 9 in structure, a T-shaped screw 18 is connected in the nut internal threads of the upper hand wheel nut 9 and the lower hand wheel nut 10 in a threaded manner, a third section bar 21 is installed at the other end of the T-shaped screw 18, a first slide 23 and a second slide 22 are arranged on the third section bar 21, a first section bar 19 is installed in the first slide 23, a second section bar 20 is installed in the second slide 22, sliding gaps are formed between the contact surfaces of the first section bar 19 and the third section bar 21 and between the contact surfaces of the second section bar 20 and the third section bar 21, so that the sliding connection structure is formed between the first section bar 19 and the third section bar 21 and between the second section bar 20 and the third section bar 21, and the T-shaped screw 18 is positioned between the second section bar 20 and the third section bar 21, the first section bar 19 can slide up and down along the first slide 23 and the second section bar 20 through adjusting the upper hand wheel nut 9 and the lower hand wheel nut 10, and random display height adjustment of the random display screen 2 is realized.
As shown in fig. 1, 2 and 7, a left housing panel 1-1 is arranged on the front surface of the left housing 1, a G-shaped groove 1-2 for installing a reflective film 5, a hollow hinge sleeve 11 and a hollow hinge shaft 12 is arranged on the front surface of the left housing 1, a left housing lamp hole 1-3 for installing an LED lamp 6 is arranged on the G-shaped groove 1-2, a main display screen installing plate 1-4 for installing a main display screen is arranged at the bottom of the G-shaped groove 1-2, a right housing panel 4-1 is symmetrically arranged on the front surface of the right housing 4, a reverse G-shaped groove 4-2 for installing a reflective film 5, a hollow hinge sleeve 11 and a hollow hinge shaft 12 is arranged on the front surface of the right housing 4-1, a right housing lamp hole 4-3 for installing an LED lamp 6 is arranged on the reverse G-shaped groove 4-2, a secondary display screen installing plate 4-4 for installing a secondary display screen is arranged at the bottom of the reverse G-shaped groove 4-2, the panel 1-1 and 4-1 of the left shell 1 and the right shell 4 are respectively and symmetrically provided with a first ventilation and pressure relief hole 7 in the middle and a second ventilation and pressure relief hole 8 at the upper and lower ends, the installation space of the main display screen 2 and the auxiliary display screen 3 is symmetrically arranged between the first ventilation and pressure relief hole 7 of the left shell 1 and the right shell 4 and the second ventilation and pressure relief hole 8 at the upper and lower ends, after the main display screen 2 and the auxiliary display screen 3 are symmetrically embedded and installed, as the left shell panel 1-1, the G-shaped groove 1-2 and the main display screen installation plate 1-4 are in a ladder shape, the right shell panel 4-1, the anti-G-shaped groove 4-2 and the auxiliary display screen installation plate 4-4 are also symmetrically in a ladder shape, so that the periphery of the installation space of the main display screen 2 and the auxiliary display screen 3 is protruded, the main display screen 2 and the auxiliary display screen 3 can be protected;
as shown in fig. 8, a charger space 26, a reserved space 27, a circuit board mounting space 28, a battery mounting space 29, and a radar mounting space 30 are provided on the back surface of the left casing 1, and when in use, a charger is mounted in the charger space 26, a circuit board is mounted in the circuit board mounting space 28, a battery is mounted in the battery mounting space 29, and a radar is mounted in the radar mounting space 30.
As shown in fig. 9 to 11, the hollow hinge sleeve 11 and the hollow hinge shaft 12 are used in pairs, the hollow hinge sleeve 11 comprises a shaft sleeve 11-1 with a stepped blind hole inside and a first hinge connecting plate 11-2 integrated with the shaft sleeve 11-1 and provided with a connecting hole, and a first wire passing hole 11-3 is processed on the outer wall of the shaft sleeve 11-1; the hollow hinge shaft 12 comprises a stepped shaft 12-1 with a straight-through blind hole inside and a hinge connecting plate 12-2 which is integrated with the stepped shaft 12-1 and is provided with a connecting hole, and a second wire passing hole 12-3 is processed on the outer wall of the stepped shaft 12-1 with the straight-through blind hole; thus, the hollow hinge sleeve 11 and the hollow hinge shaft 12 which can be used in pairs are provided with the power line or the data line in a hidden mode for electric connection or communication connection, so that fatigue damage of the electric connection can be avoided, a set of control module, a set of charge-discharge module and a set of battery pack are saved, and a wireless communication module is not required to be arranged between two sets of screens, thereby saving cost and weight of products. The shaft sleeve 11-1 with the stepped blind hole inside and the stepped shaft 12-1 with the straight-through blind hole inside can play roles in preventing water and dust.
When the portable folding LED warning screen is used, when a road needs to be temporarily closed due to various conditions, on-site personnel can unfold the front and rear 2 support legs 14 on the left side and the right side of the portable folding LED warning screen and stand on the road in front of the temporary closed area, at the moment, the main display screen 2 and the auxiliary display screen 3 can leave more than 50 centimeters of the ground and are perpendicular to the ground, the left side and the right side of the middle part of the left shell 1 and the right shell 4 are respectively symmetrically provided with the left side and the right side of the left shell 7 and the 4 second ventilation and pressure relief holes 8 on the upper end and the lower end of the left shell 4, so that the portable folding LED warning screen can be prevented from being blown down by wind when the portable folding LED warning screen is unfolded and stands on the ground, whether the front wind comes or the rear wind comes can pass through the first ventilation pressure relief holes in the middle part and the second ventilation pressure relief holes on the upper end and the lower end, so that the wind pressure is relieved, the upper ends of the 4 support legs 14 are locked and fixed by the upper hand wheel nuts 9 and the lower hand wheel nuts 10 in double points and supported by the connecting rods 15, and the lower ends of the 4 support legs 14 are pinned into the ground through pedal nails 25 on the support legs 24, so that the portable folding warning screen can be further strengthened; then, through operating control system, real audible and visual warning and warning, warning past vehicle slows down slowly and prevents that the vehicle from missing and hits or the mistake is made a dash and is informed on-the-spot personnel in time dodges, owing to have round reflective membrane 5 below LED lamp 6, can reflect light to LED lamp 6, also can reflect light to the car light of coming car, increase long-range visibility.
As shown in fig. 12, the control system 32 of the present invention includes a main control module 100, and data of commonly used characters and graphic symbols, such as "front accident", "slow running of vehicle", "slow running" and arrow graphic symbols, are preset in the main control module 100; the input module comprises a WIFI module 101, a GSM module 102, a handwriting board module 103, a radar module 104, a vehicle collision detection module 107, a vehicle intrusion detection module 108, a battery pack 110, a low-voltage monitoring 111, a charging module 112, a power key 113, an upturning key 114, a downturning key 115 and a function key 116, and the output module comprises an acousto-optic warning module 105, a display control module 106, an LED main display module 1061, an LED auxiliary display module 1062, a wireless module 109 and a wireless alarm module 1091, wherein the WIFI module 101, the GSM module 102 and the handwriting board module 103 are used for writing or modifying display contents on site, when the WIFI module 101, the GSM module 102 and the handwriting board module 103 receive display screen text modification information from operators, data are transmitted to the main control module 100, when the main control module 100 receives the data, the display control module 106 controls and modifies the LED main display module 1061 and the LED auxiliary display module 1062 to display output the output contents; when the function key 116 is pressed to start the radar module 104, radar acquisition data are sent to the main control module 100, the main control module 100 judges whether an oncoming vehicle has overspeed behavior according to the data provided by the radar module 104, if the vehicle overspeed main control module sends speed information to the display control module 106, the display module 106 controls the LED main display module 1061 and the LED auxiliary display module 1062 to display the driving speed of the oncoming vehicle, and simultaneously, the main control module 100 sends alarm signals to the acousto-optic alarm module 105 and the wireless module 109, the acousto-optic alarm module 105 sends acousto-optic alarm information, and simultaneously, the wireless module 109 sends wireless alarm signals to the wireless alarm module 1091, and when the wireless alarm module 1091 receives the wireless alarm signals, an acousto-optic alarm is sent out to prompt that the oncoming vehicle is in overspeed; when the low voltage detection 111 monitors whether the voltage of the battery pack 110 is low, a low voltage signal is sent to the main control module 100, the main control module 100 cuts off power supply of all other devices, the low voltage signal is sent to the sound-light warning module 105, and the sound-light warning module 105 sends out a low voltage sound-light warning signal; when the vehicle collision detection module 107 and the vehicle intrusion detection module 108 detect that a vehicle intrudes, a vehicle intrusion signal is sent to the main control module 100, the main control module 100 sends the vehicle intrusion signal to the sound-light warning module 105 of the wireless module 109, the sound-light warning module 105 sends sound-light warning information, the wireless module 109 sends a wireless warning signal to the wireless warning module 1091, and the wireless warning module 1091 receives the wireless warning signal and simultaneously sends out sound-light warning; when the up-turn button 114 or the down-turn button 115 is pressed, a signal is sent to the main control module 100, and the main control module 100 sends the signal to the display control module 106 to control the LED main display module 1061 and the LED auxiliary display module 1062 to display contents; the function key 116 sends a signal to the main control module 100 when pressed, and controls the radar module 104 to start or stop the function; the power button 113 controls the battery pack to start or stop supplying power to the main control module 100; the battery pack 100 is controlled by the power button 116 to be output to the main control module 100, and the main control module 100 outputs to supply power to the whole system equipment.
When the foot pedal is not needed to be used, the foot pedal nails 25 on the lower end support legs 24 of the 4 support legs 14 are pulled out of the ground, the upper hand wheel nuts 9 and the lower hand wheel nuts 10 on the upper ends of the 4 support legs 14 are loosened, the left and right side front and rear 2 support legs 14 are supported by the connecting rods 15, the left connecting rod 15-1 and the right connecting rod 15-2 of the connecting rods 15 are folded by gravity under the action of the pin shafts 15-3, then the upper hand wheel nuts 9 and the lower hand wheel nuts 10 are adjusted upwards, under the action of the T-shaped screws 18, the hinge rods 13 drive the left and right side front and rear 2 support legs 14 to slide upwards in the first slide way 23 and the second slide way 22, therefore, the front and rear 2 support legs 14 on the left side and the right side are folded on the two sides of the left shell 1 and the right shell 4 of the portable foldable LED warning screen, and the main display screen 2 and the auxiliary display screen 3 are folded and folded through the hollow hinge sleeve 11 and the hollow hinge shaft 12, and the main display screen 2 and the auxiliary display screen 3 are symmetrically and embedded on the lowest surface of the stepped shell, so that the peripheral shells of the main display screen 2 and the auxiliary display screen 3 are convex, the main display screen 2 and the auxiliary display screen 3 can be protected, and the left and right 2 first ventilation and pressure relief holes 7 naturally form handles, so that the portable LED warning screen is convenient to carry.
Claims (8)
1. The utility model provides a portable collapsible LED warning screen, includes left casing (1), main display screen (2), vice display screen (3), right casing (4) and control system (32), is equipped with round interval LED lamp mounting hole and installs LED lamp (6) around main display screen (2) and vice display screen (3) on the panel of left casing (1) and right casing (4), a serial communication port, the upper and lower both ends of left casing (1) and right casing (4) are articulated through hollow hinge cover (11) and hollow hinge axle (12) first ventilation pressure relief hole (7) at middle part and second ventilation pressure relief hole (8) at upper and lower both ends are equipped with respectively on the panel of left casing (1) and right casing (4), be equipped with display screen installation space symmetrically between first ventilation pressure relief hole (7) at left casing (1) and right casing (4) and second ventilation pressure relief hole (8) at upper and lower both ends, install main display screen (2) and vice display screen (3) through hollow hinge axle (11) and hollow hinge line (12) of being connected in the communication respectively in the hollow hinge cover of connecting in the space, the lower end outer side surfaces of the left shell (1) and the right shell (4) are respectively provided with a hinge rod (13) through an upper hand wheel nut (9), the lower end of the hinge rod (13) is provided with a front support leg and a rear support leg (14) through a lower hand wheel nut (10), the upper hand wheel nut (9) and the lower hand wheel nut (10) are respectively composed of a hand wheel and a nut integrated with the hand wheel, T-shaped screws (18) are connected with the nut sleeves of the upper hand wheel nut (9) and the lower hand wheel nut (10) in an internal thread manner, a third section bar (21) is arranged at the other end of the T-shaped screws (18), the third section bar (21) is provided with a first slide way (23) and a second slide way (22), a first section bar (19) is arranged in the first slide way (23), a second section bar (20) is arranged in the second slide way (22), sliding gaps are respectively arranged between the contact surfaces of the first section bar (19) and the third section bar (21) and the contact surfaces of the second section bar (20) and the third section bar (21), so that the first section bar (19) and the third section bar (21) are connected in a sliding mode, the first section bar (19) and the second section bar (20) can slide up and down along the first slide way (23) and the second slide way (22) respectively by adjusting the upper hand wheel nut (9) and the lower hand wheel nut (10), and the upper hand wheel nut (9), the lower hand wheel nut (10) and the T-shaped screw (18) are randomly locked and positioned at any height, so that the height of the main display screen (2) and the auxiliary display screen (3) can be randomly adjusted.
2. A portable and foldable LED warning screen according to claim 1, characterized in that a foot (24) is mounted at the lower end of the leg (14), a foot-treadable nail (25) is mounted on the foot (24), a connecting rod (15) is mounted between the front and rear 2 feet (24), the connecting rod (15) comprises a left connecting rod (15-1) and a right connecting rod (15-2), and the left connecting rod (15-1) and the right connecting rod (15-2) are hinged by a pin (15-3).
3. A portable foldable LED warning screen according to claim 1, characterized in that the front and rear 2 hinge rods (13) are respectively mounted on the outer sides of the lower ends of the left housing (1) and the right housing (4) through upper hand wheel nuts (9), the upper ends of the front and rear 2 hinge rods (13) are connected through second rivets (17), the front and rear 2 support legs (14) are mounted on the lower ends of the front and rear 2 hinge rods (13) through lower hand wheel nuts (10), and the front and rear 2 support legs (14) are connected with the hinge rods (13) through 2 first rivets (16).
4. The portable foldable LED warning screen according to claim 1, characterized in that a left housing panel (1-1) is arranged on the front surface of the left housing (1), a G-shaped groove (1-2) for mounting a reflective film (5) and a hollow hinge sleeve (11) and a hollow hinge shaft (12), a left housing lamp hole (1-3) for mounting an LED lamp (6) is arranged on the G-shaped groove (1-2), a main display screen mounting plate (1-4) for mounting a main display screen is arranged at the bottom of the G-shaped groove (1-2), a right housing panel (4-1) is arranged on the front surface of the right housing (4), a reverse G-shaped groove (4-2) for mounting a reflective film (5) and a hollow hinge sleeve (11) and a hollow hinge shaft (12) is arranged on the reverse G-shaped groove (4-2), a right housing lamp hole (4-3) for mounting an auxiliary display screen (4-4) for mounting an auxiliary display screen is arranged at the bottom of the reverse G-shaped groove (4-2), the main display screen (2) and the main display screen (1) are symmetrically embedded in the left housing panel (1-1) and the main display screen (1-1), and the right shell panel (4-1), the reverse G-shaped groove (4-2) and the auxiliary display screen mounting plate (4-4) are also symmetrically stepped, so that the periphery of the mounting space of the main display screen (2) and the auxiliary display screen (3) forms bulges which play a role in protecting the main display screen (2) and the auxiliary display screen (3).
5. The portable and foldable LED warning screen according to claim 1, characterized in that a charger space (26), a reserved space (27), a circuit board installation space (28), a battery installation space (29) and a radar installation space (30) are provided on the back surface of the left housing (1), and in use, a charger is installed in the charger space (26), a circuit board is installed in the circuit board installation space (28), a battery is installed in the battery installation space (29), and a radar is installed in the radar installation space (30).
6. The portable and foldable LED warning screen according to claim 1, characterized in that the hollow hinge sleeve (11) and the hollow hinge shaft (12) are used in pairs, the hollow hinge sleeve (11) comprises a shaft sleeve (11-1) with a stepped blind hole inside and a first hinge connecting plate (11-2) integrated with the shaft sleeve (11-1) and provided with a connecting hole, and a first wire through hole (11-3) is processed on the outer wall of the shaft sleeve (11-1); the hollow hinge shaft (12) comprises a stepped shaft (12-1) with a straight-through blind hole inside and a hinge connecting plate (12-2) which is integrated with the stepped shaft (12-1) and is provided with a connecting hole, a second wire passing hole (12-3) is processed on the outer wall of the stepped shaft (12-1) with the straight-through blind hole, signal data wires are arranged in the hollow hinge sleeve (11) and the hollow hinge shaft (12) which are used in pairs at the upper end in a communication mode, and a power wire is arranged in the hollow hinge sleeve (11) and the hollow hinge shaft (12) which are used in pairs at the lower end in a hidden mode in an electric mode.
7. A portable and foldable LED warning screen according to claim 1, characterized in that a circle of spaced LED lamp mounting holes are provided around the main display screen (2) and the sub display screen (3) on the panels of the left housing (1) and the right housing (4) and a reflective film (5) is correspondingly mounted.
8. The portable and foldable LED warning screen according to claim 1, wherein the control system (32) comprises a main control module (100), an input module connected with the main control module (100) and an output module connected with the main control module (100), the input module comprises a WIFI module (101), a GSM module (102), a handwriting board module (103), a radar module (104), a vehicle collision detection module (107), a vehicle intrusion detection module (108), a battery pack (110), a low voltage monitoring (111), a charging module (112), a power key (113), an upturning key (114), a downturning key (115) and a function key (116), and the output module comprises an acousto-optic warning module (105), a display control module (106), an LED main display module (1061), an LED auxiliary display module (1062), a wireless module (109) and a wireless warning module (1091).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810616909.8A CN108492731B (en) | 2018-06-15 | 2018-06-15 | Portable and foldable LED warning screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810616909.8A CN108492731B (en) | 2018-06-15 | 2018-06-15 | Portable and foldable LED warning screen |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108492731A CN108492731A (en) | 2018-09-04 |
| CN108492731B true CN108492731B (en) | 2024-03-08 |
Family
ID=63342654
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810616909.8A Active CN108492731B (en) | 2018-06-15 | 2018-06-15 | Portable and foldable LED warning screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108492731B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114394005B (en) * | 2022-01-18 | 2023-07-07 | 大连海事大学 | Swinging type marine wireless charging device |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101620807A (en) * | 2009-07-17 | 2010-01-06 | 深圳市名家汇城市照明科技有限公司 | LED screen of rolling screen |
| CN101690137A (en) * | 2007-07-04 | 2010-03-31 | 夏普株式会社 | Foldable portable terminal |
| JP2012216977A (en) * | 2011-03-31 | 2012-11-08 | Panasonic Corp | Foldable mobile radio apparatus |
| CN102930789A (en) * | 2012-11-28 | 2013-02-13 | 吴小刚 | LED (light-emitting diode) display screen with bending and folding functions |
| CN103077665A (en) * | 2013-02-19 | 2013-05-01 | 无锡市汇捷科技有限公司 | Portable and foldable LED (Light Emitting Diode) display screen |
| JP3189720U (en) * | 2014-01-15 | 2014-03-27 | 安全興業株式会社 | Blow molded road marking tool |
| CN104183196A (en) * | 2013-05-28 | 2014-12-03 | 三星显示有限公司 | Flexible display apparatus |
| CN106094986A (en) * | 2016-06-01 | 2016-11-09 | 向有明 | Lift type computer monitor |
| CN207091950U (en) * | 2017-04-06 | 2018-03-13 | 山西路桥建设集团有限公司 | A kind of highway construction signboard |
| CN208861609U (en) * | 2018-06-15 | 2019-05-14 | 沈阳广信先锋交通高技术有限公司 | A kind of portable and collapsible LED warning screen |
-
2018
- 2018-06-15 CN CN201810616909.8A patent/CN108492731B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101690137A (en) * | 2007-07-04 | 2010-03-31 | 夏普株式会社 | Foldable portable terminal |
| CN101620807A (en) * | 2009-07-17 | 2010-01-06 | 深圳市名家汇城市照明科技有限公司 | LED screen of rolling screen |
| JP2012216977A (en) * | 2011-03-31 | 2012-11-08 | Panasonic Corp | Foldable mobile radio apparatus |
| CN102930789A (en) * | 2012-11-28 | 2013-02-13 | 吴小刚 | LED (light-emitting diode) display screen with bending and folding functions |
| CN103077665A (en) * | 2013-02-19 | 2013-05-01 | 无锡市汇捷科技有限公司 | Portable and foldable LED (Light Emitting Diode) display screen |
| CN104183196A (en) * | 2013-05-28 | 2014-12-03 | 三星显示有限公司 | Flexible display apparatus |
| JP3189720U (en) * | 2014-01-15 | 2014-03-27 | 安全興業株式会社 | Blow molded road marking tool |
| CN106094986A (en) * | 2016-06-01 | 2016-11-09 | 向有明 | Lift type computer monitor |
| CN207091950U (en) * | 2017-04-06 | 2018-03-13 | 山西路桥建设集团有限公司 | A kind of highway construction signboard |
| CN208861609U (en) * | 2018-06-15 | 2019-05-14 | 沈阳广信先锋交通高技术有限公司 | A kind of portable and collapsible LED warning screen |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108492731A (en) | 2018-09-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9245465B1 (en) | School bus stop safety breakaway arm extension | |
| CN212873757U (en) | Road operation area invasion early warning system | |
| CN108492731B (en) | Portable and foldable LED warning screen | |
| CN211285345U (en) | Illegal driving monitoring device of emergency lane for highway | |
| CN208861609U (en) | A kind of portable and collapsible LED warning screen | |
| CN113216030A (en) | Road traffic sign recognition system based on machine vision | |
| CN206722534U (en) | A kind of maintenance guardrail of power equipment | |
| CN107142863A (en) | A kind of traffic safety roadblock alarming device | |
| CN211166669U (en) | Secondary traffic accident early warning device | |
| CN210238340U (en) | Warning device for highway | |
| CN207079499U (en) | A kind of traffic safety roadblock alarming device | |
| CN215052455U (en) | Multilayer safety anticollision equipment for highway construction | |
| KR101197649B1 (en) | Multimedia display board | |
| CN218631050U (en) | Safe sentinel warning device based on big dipper location | |
| CN105185276B (en) | A kind of parking warning sign | |
| CN219342914U (en) | Safety warning roadblock | |
| CN110668368A (en) | High-altitude tractor | |
| CN213144115U (en) | Foundation ditch construction guardrail with cushioning effect | |
| CN221114229U (en) | Electric lifting type ground penetrating radar trolley | |
| CN219280571U (en) | Highway guardrail net stand | |
| KR102222751B1 (en) | Foldable LED Safety Indicating Device | |
| CN217640382U (en) | Portable elevator intelligence warning sign | |
| CN214033468U (en) | Warning device for municipal road repair | |
| CN219891411U (en) | Antitheft and anti-falling monitoring equipment for shaft well cover | |
| CN221345353U (en) | Quick loading and unloading pedestrian crossing safety prompt lamp |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |