CN204729703U - Ball vibrations trigger type gas cut off valve - Google Patents
Ball vibrations trigger type gas cut off valve Download PDFInfo
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- CN204729703U CN204729703U CN201520368509.1U CN201520368509U CN204729703U CN 204729703 U CN204729703 U CN 204729703U CN 201520368509 U CN201520368509 U CN 201520368509U CN 204729703 U CN204729703 U CN 204729703U
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Abstract
The ball vibrations trigger type gas cut off valve can automatically closed when the utility model discloses a kind of earthquake, mainly overcomes existing earthquake safety shutoff value performance, structural defect.It is characterized in that: described valve rod is equipped with vibrations trigger member, described valve body is equipped with snap close, described vibrations trigger member is equipped with resilient latching member, described vibrations trigger member has the primary importance of locking with described snap close under the elastic force effect of described resilient latching member, and after clashing into by described spin, overcome the elastic force of described resilient latching member, the second place departed from described snap close.Can fast shut-off gas pipeline when the utility model advantage is earthquake, guarantee not reveal, the resilient latching member of different-stiffness and the reaction sensitivity of adjustable in vibration trigger member is changed in preset range, valve body structure is succinctly classical, make, assembling, easy to maintenance, have withstand voltage and leakage performance preferably simultaneously.
Description
Technical field
The utility model relates to the safe corollary equipment of one in China's fuel gas transmission pipe network system, the ball can automatically closed when being specifically related to a kind of earthquake vibrations trigger type gas cut off valve.
Background technique
Earthquake also known as earthquake, vibrate, be the maximum geological disaster of collapsing force.Extensive casualties, house collapse can be caused during macroseism, also likely destroy electrical network, tap water pipe network, gas ductwork, and then the secondary disaster such as initiation fire, blast.
Gas emergency cut-off valve as the safe match equipment of one in China's fuel gas transmission pipe network, for controlling without the need to the external world, can the occasion of quick closedown voluntarily.When earthquake occurs, gas emergency cut-off valve plays a role, and automatic cutting out pipeline gas supply, avoids gas leakage, prevents the secondary disaster such as fire, blast.
At present, safety control many uses solenoid valve of gas pipeline, the control of solenoid valve needs Ac or direct current, and when earthquake occurs, electrical network is paralysed, and solenoid valve cannot work.Occurred fully-machinery type gas emergency cut-off valve and special earthquake valve in the market, but its performance, structure have some defects, cost is higher in addition, is not suitable for popularizing on a large scale in China.
The earthquake safety shutoff value of Authorization Notice No. CN101619776B, by shut-off means, shake off loading is put, warning device three major components form, adopt lever principle, induction earthquake is put by shake off loading, spin on it is subjected to displacement, when spin slippage is on shut-off means right panel, lever makes downside pin sheet break off relations, and makes shut-off means complete valve closing action.During the sensitivity that this earthquake safety shutoff value regulates shake off loading to put by change locating slot size, carry out machining to locating slot after needing dismounting lever plate, process is loaded down with trivial details.In addition, adopt single valve body to join the structure of outer casing, reduce overall resistance to pressure and the sealability of valve.
Model utility content
In order to overcome above-mentioned earthquake safety shutoff value performance, structural defect, the utility model provides a kind of ball vibrations trigger type gas cut off valve, uses the utility model, can cut off gas pipeline fast and effectively, guarantee that gas safe is not revealed during earthquake.Change the resilient latching member of different-stiffness and the reaction sensitivity of adjustable in vibration trigger member, two-piece type valve mechanism is succinctly classical, makes, assembling, easy to maintenance, has withstand voltage and leakage performance preferably simultaneously.
The technological scheme that the utility model adopts:
A kind of ball vibrations trigger type gas cut off valve, comprise valve body, spin, rotary opening and closing axle, valve rod and spool, on described rotary opening and closing axle, cover has keying torsion spring, vibrations trigger member described valve rod is equipped with, described valve body is equipped with snap close, described vibrations trigger member is equipped with resilient latching member, described vibrations trigger member has the primary importance of locking with described snap close under the elastic force effect of described resilient latching member, and after clashing into by described spin, overcome the elastic force of described resilient latching member, the second place departed from described snap close.
Valve body is made up of upper valve body and lower valve body, and upper valve body top is provided with gas outlet, and lower body base is provided with fuel gas inlet.
Spin is steel ball, is placed in lower valve body, can Free-rolling.
Vibrations trigger member is hinge bar, and one end is hinged on valve rod, and the other end is vibrations triggering position, and middle part is provided with draw-in groove; Snap close is flat cross bar, is clasped with the middle part draw-in groove of vibrations trigger member.
The vibrations trigger unit of vibrations trigger member is equipped with roller.
Opening and closing torsion spring reverse arm is fixed on valve rod, and another reverse arm is fixed on upper valve body.
Resilient latching member is torsion spring, and resilient latching member reverse arm is fixed on valve rod, and another reverse arm is fixed in vibrations trigger member.
The contact position of spool and upper valve body is equipped with silicone rubber O-ring.
Rotary opening and closing axle is provided with hand reset handle in the outside side of upper valve body.
The beneficial effects of the utility model are:
use the utility model, energy fast shut-off gas pipeline during earthquake, guarantee not reveal, the resilient latching member of different-stiffness and the reaction sensitivity of adjustable in vibration trigger member is changed in preset range, valve body structure is succinctly classical, make, assembling, easy to maintenance, have withstand voltage and leakage performance preferably simultaneously.
Accompanying drawing explanation
Fig. 1 is the utility model ball vibrations trigger type gas cut off valve opening state structural representation.
Fig. 2 is the utility model ball vibrations trigger type gas cut off valve closed condition structural representation.
Fig. 3 is the A-A sectional view of Fig. 2.
Upper valve body 1, lower valve body 2, spin 3, rotary opening and closing axle 4, valve rod 5, spool 6, vibrations trigger member 7, roller 8, snap close 9, silicone rubber O-ring 10, screw 11, keying torsion spring 12, resilient latching member 13, hand reset handle 14 in figure.
Embodiment
Below in conjunction with accompanying drawing, the utility model embodiment is described further:
As shown in Figure 1, Figure 2, Figure 3 shows, the ball vibrations trigger type gas cut off valve can automatically closed when the utility model provides a kind of earthquake, the present embodiment comprises upper valve body 1, lower valve body 2, spin 3, rotary opening and closing axle 4, valve rod 5, spool 6, vibrations trigger member 7, roller 8, snap close 9, silicone rubber O-ring 10, screw 11, opens and closes torsion spring 12, resilient latching member 13, hand reset handle 14.
As Fig. 1, shown in Fig. 2, in the present embodiment, valve body is made up of upper valve body 1 and lower valve body 2, other parts are placed in the valve pocket of upper valve body 1 and the formation of lower valve body 2, spin 3 is placed with in lower valve body 2, upper valve body 1 is provided with rotary opening and closing axle 4, the Vertical direction of rotary opening and closing axle 4 is fixed with valve rod 5, spool 6 is fixed with in the middle part of valve rod 5, valve rod 5 end is hinged with vibrations trigger member 7, upper valve body 1 is equipped with and the snap close 9 shaking draw-in groove adaptation in the middle part of trigger member 7, spool 6 is installed fixing with silicone rubber O-ring 10 by screw 11, on rotary opening and closing axle 4, cover has keying torsion spring 12, vibrations trigger member 7 is equipped with resilient latching member 13.
As shown in Figure 1 and Figure 2, in the present embodiment, two-piece type valve installation, easy to maintenance, possess withstand voltage and leakage performance preferably, being specially adapted to this valve inner in the present embodiment has the Special valve of free movable members simultaneously.Gas outlet is established at upper valve body 1 top, and establish fuel gas inlet bottom lower valve body 2, the flow direction of combustion gas from the bottom up.When valve is in closed state, spool 6, under the acting in conjunction opening and closing torsion spring 12 and combustion gas pressure itself, is pressed on the valve port of upper valve body 1, valve is closed completely non-leakage.
As shown in Figure 1 and Figure 2, in the present embodiment, lower valve body 2 bottom interior surface processing ensures planeness, spin 3 is steel ball, be placed in lower valve body 2 inner, can at lower valve body 2 within Free-rolling, this structure both can ensure the sensitivity of spin 3 to induction earthquake, makes again spin 3 have enough large impact force when earthquake.
As shown in Figure 1 and Figure 2, in the present embodiment, vibrations trigger member 7 is hinge bar, and one end is hinged on valve rod 5, and the other end is vibrations triggering position, and middle part is provided with draw-in groove; Snap close 9 is flat cross bar, is clasped with the middle part draw-in groove of vibrations trigger member 7.
As shown in Figure 1 and Figure 2, in the present embodiment, the vibrations of vibrations trigger member 7 trigger position and roller 8 are housed, roller 8 in the present embodiment is double end roller, the scrolling features of point of contact avoids spin 3 and occurs stuck with vibrations trigger member 7, cause valve to close, roller 8 also plays position-limiting action to the rolling of spin 3 in addition.
As shown in Figure 3, in the present embodiment, on manual rotation opening-closing shaft 4, cover has keying torsion spring 12, and open and close torsion spring 12 1 reverse arms and be contained on valve rod 5, another reverse arm is contained on upper valve body 1.In the present embodiment, the elastic force of keying torsion spring 12 is closed for spool 6 and is provided power.
As shown in Figure 1, in the present embodiment, vibrations trigger member 5 is equipped with resilient latching member 13, and resilient latching member 13 is torsion spring, and an one reverse arm is contained on valve rod 5, and another reverse arm is contained in vibrations trigger member 7.In the present embodiment, resilient latching member 13 utilizes its own resilient to be locked on snap close 9 by vibrations trigger member 7, changes the resilient latching member 13 of different-stiffness, i.e. the reaction sensitivity of adjustable vibrations trigger member 7.
As shown in Figure 1 and Figure 2, in the present embodiment, spool 6 is equipped with silicone rubber O-ring 10 with the contact position of upper valve body 1.Silicone rubber almost forever uses and without performance variation, can use 10000 hours continuously at 200 DEG C at 150 DEG C, at 350 DEG C, also can use a period of time.When earthquake occurs, in the face of the possible bad working environments such as fire, blast, the present embodiment still can ensure that combustion gas is non-leakage within a certain period of time.
As shown in Figure 3, in the present embodiment, in the outside side of upper valve body 1, for rotary opening and closing axle 4 is provided with hand reset handle 14, after earthquake, the complete rotary manual reseting handle 14 of tubular service can by the present embodiment valve reset to opening state.
The working procedure of the present embodiment is as follows: under stand-by operation state, spin 3 rests on bottom lower valve body 2, under the effect of resilient latching member 13, vibrations trigger member 7 is locked on snap close 9, be pulled away from upper valve body 1 with the hinged valve rod 5 of vibrations trigger member 7, be fixed on spool 6 on valve rod 5 also away from the valve port of upper valve body 1.Now valve is in opening state, and as shown in Figure 1, fuel gas pipeline is communicated with valve working state.
When earthquake occurs, spin 3, by earthquake effect, is rolled in lower valve body 2, clashes into the roller 8 in vibrations trigger member 7, and when earthquake magnitude has in limited time, the impact force of spin 3 is also limited, and on vibrations trigger member 7 without impact, valve is still held open state; When earthquake magnitude is greater than default threshold value, the impact force of spin 3 is greater than the pretightening force of resilient latching member 13, vibrations trigger member 7 is made to depart from snap close 9, valve rod 5 is under the effect opening and closing torsion spring 12, be rotated counterclockwise around rotary opening and closing axle 4, be fixed on the valve port touching upper valve body 1 of the spool on valve rod 5, namely complete valve closing action, spool 6 is closed under keying torsion spring 12 and gaseous-pressure acting in conjunction.Now valve is in closed state, and as shown in Figure 2, fuel gas pipeline cuts off valve working state.
After earthquake, fuel gas pipeline maintenance is complete, and as shown in Figure 3, rotary manual reseting handle 14, overcome the elastic force opening and closing torsion spring 12, rotary opening and closing axle 4 and valve rod 5 rotate thereupon, until vibrations trigger member 7 resets, again lock with snap close 9, namely complete valve reset.Now valve is in opening state, and as shown in Figure 1, fuel gas pipeline is communicated with valve working state.
Use the utility model, when earthquake occurs, by above-mentioned working procedure, valve completes automatic closedown, and guarantee that gas safe is not revealed, reliability is high; Outer handle is used to complete reset after tubular service, easy to operate; The resilient latching member of different-stiffness and the reaction sensitivity of adjustable in vibration trigger member is changed in preset range; Two-piece type valve mechanism is succinctly classical, make, assembling, easy to maintenance, have withstand voltage and leakage performance preferably simultaneously.
Obviously, above-described embodiment of the present utility model is only used to example of the present utility model is described, and the restriction not to mode of execution of the present utility model.For those of ordinary skill in the field, other multi-form change or variations can also be made on the basis of the above description.Here without the need to also poor example cannot be given to all mode of executions.And these belong to connotation of the present utility model the apparent change of amplifying out or variation still belong to protection domain of the present utility model.
Claims (9)
1. a ball vibrations trigger type gas cut off valve, comprise valve body, spin (3), rotary opening and closing axle (4), valve rod (5) and spool (6), the upper cover of described rotary opening and closing axle (4) has keying torsion spring (12), it is characterized in that: described valve rod (5) is equipped with vibrations trigger member (7), snap close (9) described valve body is equipped with, described vibrations trigger member (7) is equipped with resilient latching member (13), described vibrations trigger member (7) has the primary importance of locking with described snap close (9) under the elastic force effect of described resilient latching member (13), and after clashing into by described spin (3), overcome the elastic force of described resilient latching member (13), the second place departed from described snap close (9).
2. ball vibrations trigger type gas cut off valve according to claim 1, it is characterized in that: described valve body is made up of upper valve body (1) and lower valve body (2), described upper valve body (1) top is provided with gas outlet, and described lower valve body (2) bottom is provided with fuel gas inlet.
3. ball vibrations trigger type gas cut off valve according to claim 1 and 2, is characterized in that: described spin (3) is steel ball, is placed in described lower valve body (2), can Free-rolling.
4. ball vibrations trigger type gas cut off valve according to claim 1, it is characterized in that: described vibrations trigger member (7) is hinge bar, one end is hinged on described valve rod (5), the other end is vibrations triggering position, middle part is provided with draw-in groove, described snap close (9) is flat cross bar, is clasped with the middle part draw-in groove of described vibrations trigger member (7).
5. ball vibrations trigger type gas cut off valve according to claim 4, is characterized in that: the vibrations of described vibrations trigger member (7) trigger position and roller (8) is housed.
6. ball vibrations trigger type gas cut off valve according to claim 1 and 2, is characterized in that: described keying torsion spring (12) reverse arms are fixed on described valve rod (5), and another reverse arm is fixed on described upper valve body (1).
7. ball vibrations trigger type gas cut off valve according to claim 1, it is characterized in that: described resilient latching member (13) is torsion spring, described resilient latching member (13) reverse arms are fixed on described valve rod (5), and another reverse arm is fixed on described vibrations trigger member (7).
8. ball vibrations trigger type gas cut off valve according to claim 1 and 2, is characterized in that: described spool (6) is equipped with silicone rubber O-ring (10) with the contact position of described upper valve body (1).
9. ball vibrations trigger type gas cut off valve according to claim 1 and 2, is characterized in that: described rotary opening and closing axle (4) is provided with hand reset handle (14) in described upper valve body (1) outside side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520368509.1U CN204729703U (en) | 2015-06-02 | 2015-06-02 | Ball vibrations trigger type gas cut off valve |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520368509.1U CN204729703U (en) | 2015-06-02 | 2015-06-02 | Ball vibrations trigger type gas cut off valve |
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| Publication Number | Publication Date |
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| CN204729703U true CN204729703U (en) | 2015-10-28 |
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| CN201520368509.1U Active CN204729703U (en) | 2015-06-02 | 2015-06-02 | Ball vibrations trigger type gas cut off valve |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109085382A (en) * | 2018-06-29 | 2018-12-25 | 华中科技大学 | A kind of acceleration sensitive mechanism based on mechanical Meta Materials and compound sensitivity micro-mechanical accelerometer |
-
2015
- 2015-06-02 CN CN201520368509.1U patent/CN204729703U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109085382A (en) * | 2018-06-29 | 2018-12-25 | 华中科技大学 | A kind of acceleration sensitive mechanism based on mechanical Meta Materials and compound sensitivity micro-mechanical accelerometer |
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