CN203082229U - Valve with hinge type valve core - Google Patents

Abstract

The utility model discloses a valve with a hinge type valve core. The valve with the hinge type valve core comprises a handle, a valve rod, a valve body, a valve core, a transmission piece, a sealing ring and a valve cover. The valve body is a shell body, valve rod holes and a channel are formed in the shell body, and the channel is provided with an inlet and an outlet. The valve core is connected with the valve body through a hinge, the valve core is made to be capable of rotating around the spin axis of the hinge, and the valve core is provided with a locking column and a connection hole. A locking hook is arranged at the bottom end of the valve rod, and a rotating hole is formed in the bottom portion of the valve rod. Rotating heads are respectively arranged at two ends of the transmission piece, one rotating head is connected with the connection hole of the valve core, the other rotating head is connected with the rotating hole of the valve rod, rotation of the valve rod is made to be transmitted to the valve core through the transmission piece to control opening and closing of the valve core, and when the valve is in the state of closing, the valve core is locked on the valve body through the locking hook and the locking column. The valve with the hinge type valve core has the advantages of being compact in structure, easy and simple to operate, small in opening torque, big in opening angle, and large in flow.

Description

A kind of valve with hinge spool

Technical field

The utility model relates to the valve that is used for the intermediate bulk storage vessel.

Background technique

The existing valve that is used for the intermediate bulk storage vessel is the rotation of spool intermediate rotary shaft as the opening ways of butterfly valve, drives spool both sides rotating opening, because spool generally is positioned at the inside of valve body, its flow is subjected to the influence of spool and rotating shaft, and sealing is relatively poor.And because the friction of butterfly valve seal circle and valve body, the dynamics of opening/shutting valve is bigger.

Develop guiding slot type lifting bar ball valve both at home and abroad recently, S shape guiding groove is arranged on the valve rod, cooperate with pilot pin, after the drive spheroid broke away from valve seat when valve rod was risen, another mistake hour hands half-twist, complete opening valve.When valve rod descends, drive spheroid and turn round 90 ° clockwise, press to valve seat then, realize throttle down, the shortcoming of this technology is to have long S shape guiding groove on the valve rod, during rotary opening and closing, needs valve rod to rise or descend in guiding groove internal spiral formula, shortcomings such as so guiding groove takes up room greatly, and angle of swing is big.

Chinese patent application number is 99124192.4 to have announced the valve opening and closing structure that a kind of dish type double-track rotation propping holds together, it is by fixed tray, rotating disc and position limit pin combine, when the external force actuate valve stem drives position limit pin together with rotating disc, position limit pin turns clockwise along the track of " circular arc " track on the fixed tray, when rotating to " straight line " track that " circular arc " track links to each other, rotating disc continues to turn clockwise, position limit pin is under the positive action of " support is held together " track on the rotating disc, strut to the fixed tray periphery by " straight line " track track on the fixed tray, at this moment position limit pin together with valve sealing structure spare to valve seat, valve closing.When valve rod is rotated counterclockwise together with rotating disc, under the positive action of " support is held together " track on the rotating disc, the track that position limit pin is pressed earlier " straight line " track on the fixed tray together with the seal structural part of valve draws in to the fixed tray center, track by " circular arc " track on the fixed tray is rotated counterclockwise again, valve opening, the technical disadvantages of this patent is to use the track of " circular arc connects straight line ", its precision prescribed height, the processing technology complexity, spool is the spheroid of combination, be difficult to obtain balanced pretightening force, thereby cause spool to damage, shortened life of valve.

Chinese patent 200620105067 has been introduced a kind of track type cock valve, comprise valve body, valve gap, operation piece, valve rod, valve seat, constitute the valve plug of conical surface sealing pair with valve seat, and rail mounted mechanism, rail mounted mechanism has the track circle of two guiding grooves and has two guide finger pins to go into the double-pin plate of described guiding groove and form by being installed in the valve plug neck, also comprise locking nut and the Adjusting ring of adjusting track circle mounting point, the shortcoming of this patent is the transmission structures complexity, extremely takies the valve body space outerpace; It is more that transmission device relates to component, the assembly process complexity.In addition, because the valve plug of conical surface sealing pair is arranged, and locking nut and the Adjusting ring of adjusting track circle mounting point, it needs repeatedly to regulate, so complicated operation.

The model utility content

The purpose of this utility model provides a kind of valve, this valve have compact structure, easy and simple to handle, valve opening moment is little, opening angle is big, flow is big, and advantage such as convenient cleaning.

For achieving the above object, the utility model provides a kind of valve with hinge spool, comprise handle, valve rod, valve body, spool, driving component, seal ring and valve gap, described valve body is a housing, described housing is formed with the valve rod hole that is used for partly holding valve rod, and be formed with a passage in the housing, described passage has an inlet and an outlet, it is characterized in that:

Described spool is connected with described valve body by hinge, make described spool to rotate around the spin axis of described hinge, and described spool is provided with locking post and attachment hole;

The bottom of described valve rod is provided with locking bail, and is provided with rotating hole in the bottom of valve rod, the central axis of the described valve rod of center axis deviation of described rotating hole; And

Described driving component two ends are respectively equipped with swivel head, in the described swivel head one is connected with the rotating hole of described valve rod and can rotates in described rotating hole, and the attachment hole of another and described spool is rotatably connected, make described valve rod rotatablely move by described driving component be passed to described spool and be converted to order about described spool around the motion of the spin axis of described hinge rotation opening or throttle down, and described spool is secured to described valve body by described locking bail and described locking post when valve is in closed condition.

In the preferred embodiment of the present utility model, hinge can be made of the pan that is arranged on the hinge axis on the described spool and be arranged on the described valve body.

In the preferred embodiment of the present utility model, driving component can be wire spring, described wire spring has body, one end of body is provided with and is used for first swivel head that is connected with the rotating hole of described valve rod, the other end is provided with second swivel head of the attachment hole connection that is used for described spool, described first swivel head is a straightway, and described second swivel head is another line segment, and the end of described another line segment curves several angle; Described body and described second swivel head are in the same plane, and described first swivel head is perpendicular to described plane; And the attachment hole on the described spool is made of two sections different holes of diameter, wherein, it is less preventing that described second swivel head from deviating to be positioned at the bore portion diameter of head of attachment hole, can rotate therein and be positioned at the big so that end of described second swivel head of the bore portion diameter of attachment hole afterbody.

In the preferred embodiment of the present utility model, described locking bail is hook-shaped, is disposed with initial part, intermediate portion and termination portion on the locking bail, and wherein, described initial part is the inclined-plane, does leading role.

In the preferred embodiment of the present utility model, can be provided with two positive stop lug boss of spaced apart several angle on the outer wall of described valve rod hole, one is provided with limit dais and locking projections projectedly on the external wall of upper portion of described valve rod, described limit dais and described locking projections cooperate with described two positive stop lug boss respectively, with the maintenance that realizes valve opening state and prevent that described valve rod from rotating and surpass predetermined angle.

In the preferred embodiment of the present utility model, described spool can have disc-shaped body, the side towards described passage of described body is provided with described locking post, above described locking post, protrude a columnar projections, be provided with the described attachment hole of the swivel head on the end that is used to hold described driving component in the described columnar projections from the side of described spool.

In the preferred embodiment of the present utility model, described valve also can comprise buckle, and the middle part of described valve rod is formed with buckle slot, described buckle slot is used for being clasped with described, remain on the described valve rod, thereby after the valve assembling was finished, valve rod can not break away from from valve body with making described snap fit.

The utility model also provides a kind of valve with hinge spool, comprise handle, valve rod, valve body, spool, driving component, seal ring and valve gap, described valve body is a housing, housing is formed with in the valve rod hole that is used for partly holding valve rod and the housing and is formed with a passage, described passage has an inlet and an outlet, it is characterized in that:

Described valve rod is connected with described spool by wire spring, and described valve rod is provided with locking bail;

Described spool is connected with described valve body by hinge, and described spool is provided with the locking post;

Described wire spring two ends are respectively equipped with swivel head, swivel head on described wire spring one end directly is connected to rotating hole with the eccentric shaft on being arranged on described valve rod, and can in described axial rotating hole, rotate, swivel head on the other end of described wire spring and described spool are directly hinged; And

Described valve rod rotatablely move by described driving component be passed to described spool and be converted to order about described spool around the motion of the spin axis of described hinge rotation to open or throttle down, described spool is by locking bail and the locking of locking post when valve is in closed condition.

In the valve of the present utility model, owing to adopt hinging manner to connect between spool and the valve body, spool can rotate and the keying of realization valve around the central axis of hinge.When open mode, therefore no any block piece in the fluid passage in the valve body can realize big flow.And, can realize Open valve expeditiously by the velocity ratio of Effector and transmission device suitably is set, for example valve rod only turns over complete opening and the closure that a small angle can be realized valve.In addition, adopt hinged mode make valve simple in structure, compact, easy and simple to handle, open and close that moment is little, opening angle is big, flow is big, convenient cleaning and low cost of manufacture.

Description of drawings

Fig. 1 illustrates the exploded perspective view according to first embodiment of the valve with hinge spool of the present utility model;

Fig. 2 a illustrates the stereogram according to first embodiment's of the valve with hinge spool of the present utility model valve body;

Fig. 2 b illustrates the stereogram according to first embodiment's of the valve with hinge spool of the present utility model valve body;

Fig. 2 c illustrates the plan view according to first embodiment's of the valve with hinge spool of the present utility model valve body;

Fig. 3 a illustrates the stereogram according to first embodiment's of the valve with hinge spool of the present utility model valve rod;

Fig. 3 b illustrates another stereogram according to first embodiment's of the valve with hinge spool of the present utility model valve rod;

Fig. 4 illustrates the stereogram according to first embodiment's of the valve with hinge spool of the present utility model buckle;

Fig. 5 illustrates the stereogram according to first embodiment's of valve of the present utility model wire spring;

Partial cross-sectional perspective view after Fig. 6 illustrates and assembles according to the spool of first embodiment's of the present utility model valve and wire spring;

The partial cross-sectional perspective view of the valve after Fig. 7 illustrates and finishes according to first embodiment's of the present utility model assembling;

Sectional view when the valve after Fig. 8 illustrates and finishes according to first embodiment's of the present utility model assembling is in closed condition;

Sectional view when Fig. 9 illustrates valve according to first embodiment of the present utility model and is in pre-closed condition; And

Sectional view when Figure 10 illustrates valve according to first embodiment of the present utility model and is in buttoned-up status.

Embodiment

Below with reference to accompanying drawing preferred embodiment of the present utility model is elaborated, so that clearlyer understand the purpose of this utility model, characteristics and advantage.It should be understood that embodiment shown in the drawings is not the restriction to the utility model scope, and just for the connotation of technical solutions of the utility model is described.

Fig. 1 illustrates the exploded perspective view according to first embodiment of the valve 100 with hinge spool of the present utility model.As shown in Figure 1, valve 100 comprises valve body 1, handle 2, wire spring 3, spool 4, valve gap 5, seal ring 6,7 and 9, buckle 8, valve rod 10, and handle pin 11.Wherein, spool 4 is connected with valve body 1 by hinging manner, and hinge is made of the pan that is arranged on the hinge axis on the spool 4 and be arranged on the valve body 1, hereinafter will be described in more detail.Be provided with seal ring 6 between spool 4 and the valve body 1.Handle 2 is connected with valve rod 10 by handle pin 11, and valve rod 2 is connected with spool 4 by wire spring 3.Buckle 8 is stuck on the valve rod 10 and breaks away from from valve body 1 with valve rod 10 after preventing installation.Wire spring 3 plays the gearing that the action of valve rod is passed to spool 4, and when making handle with sleeve 2, handle 2 drives valve rod 10 and rotates, and then 3 actions of valve rod drive wire spring, and the action of wire spring 3 drives spool 4 actions again, thereby realizes the keying of valve.Be provided with seal ring 7 at valve rod 10 and 1 of valve body.Also be provided with seal ring 9 between valve body 1 and the valve gap 5.

In addition, valve rod 10 is provided with locking bail, and spool is provided with the locking post, and spool is locked on the valve body by locking bail and locking post, to realize the closely airtight of valve, hereinafter will further describe.

Fig. 2 a-2c illustrates stereogram and the plan view according to first embodiment's of the valve 100 with hinge spool of the present utility model valve body 1 respectively.Shown in Fig. 2 a-2c, valve body 1 is a housing, is formed with a passage 1a in the housing, passes through for fluid.The left and right side of housing is provided with spool 4 along a horizontal axis (figure do not show) the inlet 1b and the outlet 1c of formation and container and external communications respectively at its inlet 1b place, exports 1c and is connected with valve gap.The perpendicular vertical axis (figure does not show) of the upper end edge of valve body 1 and described horizontal axis is formed with valve rod hole 1d.The outer wall of valve rod hole 1d is provided with the positive stop lug boss 1e and the 1f of spaced apart several angle.Above being in passage 1a, the inlet 1a of valve body 1 is provided with pan 1g, 1h.

Fig. 3 a and 3b illustrate the stereogram of the valve rod 10 of valve 100, and wherein, valve rod 10 partly is contained among the valve rod hole 1d, are formed with the lug 101 that cooperates with handle 2 and handle pin 11 respectively and the pin-and-hole 101a on lug 101 on the top of valve rod.Also one is provided with limit dais 102 and locking projections 103a, 103b projectedly on the external wall of upper portion of valve rod.Limit dais 102 and locking projections 103a, 103b cooperate with positive stop lug boss 1e, 1f on the valve body 1 respectively, and the maintenance that realizes valve opening state prevents also that valve rod from rotating and surpasses predetermined angle.

Be provided with locking bail 104 on the bottom of valve rod 10 integratedly.When locking bail 104 is used for valve closing, make spool 4 stably remain on closed state.Locking bail 104 is a hook formation, and locking bail is provided with initial part 104a, intermediate portion 104b and the 104c of termination portion, and wherein, initial part 104a is the inclined-plane, does leading role.Locking bail is used for cooperating with locking post on the spool 4, and the locking when realizing valve closing hereinafter will be described in more detail.

Also be provided with the eccentric rotating hole 106 along the valve rod axis direction in the bottom of valve rod 10, the central axis of rotating hole 106 (figure does not show) departs from central axis (figure does not show) certain distance of valve rod, and this distance can be determined by the angle that valve will be opened.

In addition, be formed with buckle slot 105 at the middle part of valve rod, buckle slot 105 is used for cooperating with buckle 8, makes buckle 8 remain on regularly on the valve rod 10, thereby after the valve assembling was finished, valve rod can not break away from from valve body.

Fig. 4 illustrates the stereogram of the buckle 8 of valve 100.As shown in Figs. 4a and 4b, buckle 8 is shaped as roughly C shape, and two arms 81,82 of C shape have certain elasticity, makes when buckle 8 snaps in the buckle slot 105, can not come off from buckle slot 105.

Fig. 5 illustrates the stereogram according to first embodiment's of valve of the present utility model wire spring 3.As shown in Figure 5, wire spring 3 has body 30, and an end of body 30 is provided with the first swivel head 31a, and the other end is provided with the second swivel head 31b.Swivel head 31a is the straightway of certain-length, and with 30 one-tenth tilt fixings of body of wire spring 3, be generally 90 °.Swivel head 31b is another line segment angled with body 30, this line segment end curve several angle with prevent wire spring 3 attachment hole from spool after assembling deviate from (perhaps swivel head 31b be can be hinged with spool connecting head), and swivel head 31b and body 30 are substantially at grade, and swivel head 31a is perpendicular to the plane that is made of body 30 and swivel head 31b.Swivel head 31a is connected (insertion) with the rotating hole 106 of valve rod, and can axially rotate in the rotating hole 106.Swivel head 31b then inserts in the attachment hole 44 of spool 4, and the attachment hole 44 of swivel head 31b and spool has rotatable hinged relationship, and promptly swivel head 31b can rotate in attachment hole 44.Thus, the rotation of valve rod 10 can drive wire spring 3 actions, make that the rotatablely moving of valve rod (promptly by the power with respect to the spool direction that rotatablely moves and produce) is by wire spring 3(driving component) be passed to spool and be converted to order about spool around the motion of the spin axis rotation of hinge with unlatching or throttle down, hereinafter will further specify.

Partial cross-sectional perspective view after Fig. 6 illustrates and assembles according to the spool 4 of first embodiment's of the present utility model valve 100 and wire spring 3.As shown in Figure 6, spool 4 has disc-shaped body 41, is provided with hinge axis 411,412 on the periphery of body 41 integratedly.The side towards valve channel 1a of body 41 is provided with locking post 42, and locking post 42 is used for cooperating with locking bail 104 on the valve rod 10, and when locking, locking post 42 and locking bail 104 is interference fit.Protrude a columnar projections 43(as Fig. 1 clearer illustrate from the side of spool in locking above the post 42), be provided with the attachment hole 44 of the swivel head 31b that is used to hold wire spring 3 in the columnar projections 43.Attachment hole 44 is made of two sections different holes of diameter, wherein, it is less preventing that swivel head 31b from deviating to be positioned at the bore portion 44a diameter of head of attachment hole, can rotate therein and be positioned at the big so that end of swivel head 31b of the bore portion 44b diameter of attachment hole afterbody.

During assembling, valve rod 10 partly is contained among the valve rod hole 1d of valve body 1 and by buckle 8 and remains in the valve body 1, and the hinge axis on the spool 4 is fit in the pan of valve body.Wire spring 3 at first utilizes the attachment hole 44 of swivel head 31b and spool 4 to be connected, and then swivel head 31a is pressed into the rotating hole 106 of valve rod, as shown in Figure 7.Because swivel head 31a is the straightway of certain-length, and and the wire spring body is into about 90 ° tilt fixing, fixed groove on the spool all substantially at grade, so can not come off after wire spring swivel head 31a and the 31b assembling in spool opening and closing state and opening and closing process.During valve rod 10 rotations,, control the keying of spool thus because the axial off-centre of rotating hole 106 makes wire spring 3 produce the power that acts on spool.

Sectional view when Fig. 8 illustrates the valve 100 of assembling after finishing and is in closed condition.As shown in Figure 8, valve rod 10 partly is contained among the valve rod hole 1d of valve body 1 and via buckle 8 rotatable remaining on the valve body 1.Hinge axis 411 and 412 on the spool 4 inserts respectively among the pan 1g and 1h on the valve body 1, makes spool 4 to rotate around the central axis of pan.Valve rod 10 is connected with spool 4 by wire spring 3, makes when rotation valve rod 10, and valve rod 10 drives wire spring 3 actions and then drives spool 4 actions, opens or closes spool thus.

When throttle down, valve rod 10 is to the closed condition rotation, and valve rod 10 and wire spring 3 are formed the cam eccentric structure, and then the rotation of wire spring 3 pulling spool 4 relies on valve body 1, makes spool 4 be in pre-closed condition, as shown in Figure 9, and the also not locking of spool this moment.Be rotated further valve rod 10, when the initial part 104a of locking post 42 and locking bail 104 contacts, under the effect on initial part 104a inclined-plane, initial part 104a has inside tightening force can for the locking cylinder, when locking post 42 is pulled to intermediate portion 104b, locking the side of post 42 and the 104c of termination portion of locking bail 104 this moment fits, this moment, seal ring 6 was oppressed, realize sealing as shown in figure 10, the positive stop lug boss 1f of the limit dais 102 of valve rod 10 and valve body 1 fits at this moment, the locking projections 103a of valve rod 10 crosses the positive stop lug boss 1f of valve body, and locking is finished.

When opening valve, counterrotating valve rod 10, make valve rod 10 locking bail 104 at first with spool 4 on locking post 42 break away from.Be further rotated valve rod 10 then, form the cam eccentric structures with wire spring 3 on the valve rod 10, this moment, eccentric point was near apart from spool 4, wire spring 3 pushes away spool, make spool open to full open position, at this moment, the limit dais 102 of valve rod 10 and the positive stop lug boss 1e of valve body 1 fit, the locking projections 103b of valve rod 10 crosses the positive stop lug boss 1e of valve body, and this moment, valve rod was in the lock state.

In the foregoing description, owing to adopt hinging manner to connect between spool and the valve body, spool can rotate and the keying of realization valve around the central axis of hinge.When open mode, therefore no any block piece in the fluid passage in the valve body can realize big flow.And, can realize Open valve expeditiously by the velocity ratio of Effector and transmission device suitably is set, for example valve rod only turns over complete opening and the closure that a small angle can be realized valve.In addition, adopt hinged mode make valve simple in structure, compact, easy and simple to handle, open and close that moment is little, opening angle is big, flow is big, convenient cleaning and low cost of manufacture.

It is pointed out that in the foregoing description that each member can have various modification.For example, handle and valve rod can be integral piece.The driving component that is made of wire spring can adopt other structure, for example constitutes by having certain flexible working of plastics or metalwork, as long as driving component can be transferred to spool with the rotation of valve rod, gets final product with the keying that realizes valve thereby push or retract spool open.The hinge Placement of spool and valve body also can be embodied as pan is set on spool, waits and realizes and joint pin is set on valve body.

Below described preferred embodiment of the present utility model in detail, but it will be appreciated that, after having read above-mentioned teachings of the present utility model, those skilled in the art can make various changes or modifications the utility model.These equivalent form of values fall within the application's appended claims institute restricted portion equally.

Claims (8)

1. valve with hinge spool, comprise handle, valve rod, valve body, spool, driving component, seal ring and valve gap, described valve body is a housing, described housing is formed with the valve rod hole that is used for partly holding valve rod, and be formed with a passage in the housing, described passage has an inlet and an outlet, it is characterized in that:

Described spool is connected with described valve body by hinge, make described spool to rotate around the spin axis of described hinge, and described spool is provided with locking post and attachment hole;

The bottom of described valve rod is provided with locking bail, and is provided with rotating hole in the bottom of valve rod, the central axis of the described valve rod of center axis deviation of described rotating hole; And

Described driving component two ends are respectively equipped with swivel head, in the described swivel head one is connected with the rotating hole of described valve rod and can rotates in described rotating hole, and the attachment hole of another and described spool is rotatably connected, make described valve rod rotatablely move by described driving component be passed to described spool and be converted to order about described spool around the motion of the spin axis of described hinge rotation opening or throttle down, and described spool is secured to described valve body by described locking bail and described locking post when valve is in closed condition.

2. valve according to claim 1 is characterized in that: described hinge is made of the pan that is arranged on the hinge axis on the described spool and be arranged on the described valve body.

3. valve according to claim 1 is characterized in that:

Described driving component is a wire spring, described wire spring has body, one end of body is provided with and is used for first swivel head that is connected with the rotating hole of described valve rod, the other end is provided with second swivel head of the attachment hole connection that is used for described spool, described first swivel head is a straightway, and described second swivel head is another line segment, and the end of described another line segment curves several angle;

Described body and described second swivel head are in the same plane, and described first swivel head is perpendicular to described plane; And

Attachment hole on the described spool is made of two sections different holes of diameter, wherein, it is less preventing that described second swivel head from deviating to be positioned at the bore portion diameter of head of attachment hole, can rotate therein and be positioned at the big so that end of described second swivel head of the bore portion diameter of attachment hole afterbody.

4. valve according to claim 1 is characterized in that: described locking bail is hook-shaped, is disposed with initial part, intermediate portion and termination portion on the locking bail, and wherein, described initial part is the inclined-plane, does leading role.

5. valve according to claim 1, it is characterized in that: the outer wall of described valve rod hole is provided with two positive stop lug boss of spaced apart several angle, one is provided with limit dais and locking projections projectedly on the external wall of upper portion of described valve rod, described limit dais and described locking projections cooperate with described two positive stop lug boss respectively, with the maintenance that realizes valve opening state and prevent that described valve rod from rotating and surpass predetermined angle.

6. valve according to claim 1, it is characterized in that: described spool has disc-shaped body, the side towards described passage of described body is provided with described locking post, above described locking post, protrude a columnar projections, be provided with the described attachment hole of the swivel head on the end that is used to hold described driving component in the described columnar projections from the side of described spool.

7. valve according to claim 1, it is characterized in that: described valve also comprises buckle, the middle part of described valve rod is formed with buckle slot, described buckle slot is used for being clasped with described, remain on the described valve rod with making described snap fit, thereby after the valve assembling was finished, valve rod can not break away from from valve body.

8. valve with hinge spool, comprise handle, valve rod, valve body, spool, driving component, seal ring and valve gap, described valve body is a housing, housing is formed with in the valve rod hole that is used for partly holding valve rod and the housing and is formed with a passage, described passage has an inlet and an outlet, it is characterized in that:

Described valve rod is connected with described spool by wire spring, and described valve rod is provided with locking bail;

Described spool is connected with described valve body by hinge, and described spool is provided with the locking post;

Described wire spring two ends are respectively equipped with swivel head, swivel head on described wire spring one end directly is connected to rotating hole with the eccentric shaft on being arranged on described valve rod, and can in described axial rotating hole, rotate, swivel head on the other end of described wire spring and described spool are directly hinged; And

Described valve rod rotatablely move by described driving component be passed to described spool and be converted to order about described spool around the motion of the spin axis of described hinge rotation to open or throttle down, described spool is by locking bail and the locking of locking post when valve is in closed condition.

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