CN217736391U

CN217736391U - High efficiency gas overflows trip valve

Info

Publication number: CN217736391U
Application number: CN202221958275.2U
Authority: CN
Inventors: 高子鑫; 赵恩云; 李林国
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-07-27
Filing date: 2022-07-27
Publication date: 2022-11-04
Anticipated expiration: 2032-07-27

Abstract

The utility model provides a high efficiency gas overflows trip valve belongs to the valve field. It has solved the ageing problem that takes place the gas and reveal of gas pipeline. This high efficiency gas flow-through cut-off valve, including the valve body that has the gas circulation chamber, the valve body is provided with gas outlet and the air inlet that all is linked together with the gas circulation chamber, valve body gas outlet department is provided with the connecting pipe of being convenient for to be connected with the rubber tube, the intracavity is provided with the spheroid that is used for gaseous quick overflow to cut off in the gas circulation, be located and set up the recess that supplies spheroid movable mounting on the gas circulation intracavity wall, the spheroid can move under the pressure differential action to connecting pipe pipeline mouth department and form the cross-sectional area that overflows, it is provided with the spacing portion that is used for preventing the spheroid skew to be located the connecting pipe and valve body junction, be provided with the spacing spring that is used for preventing the spheroid skew in the gas circulation chamber, and be provided with the reset assembly who is used for promoting the spheroid to remove to the recess on the valve body. The utility model has the advantages of simple structure, practicality are strong and prevent effectively that the gas from revealing.

Description

High efficiency gas overflows trip valve

Technical Field

The utility model belongs to the valve field relates to a trip valve, in particular to high efficiency gas overflows trip valve.

Background

The main component of domestic natural gas is alkanes, of which methane makes the majority. Natural gas is one of the safer fuel gases, does not contain carbon monoxide, is lighter than air, immediately diffuses upwards once leaked, is not easy to accumulate to form explosive gas, and has higher safety than other fuel gases.

The gas is almost the equipment that every family needs now, especially the building family has all, however present domestic gas generally adopts rubber tube or plastic tubing to connect gas bottle and kitchen front valve after being registered one's residence, along with gas constantly popularizes and the user volume constantly increases, also bring certain potential safety hazard for people simultaneously, traditional kitchen front valve structure does not possess gaseous overcurrent shutoff function, rubber tube or plastic tubing connected between gas bottle and the kitchen front valve cause the rubber tube or plastic tubing damage because operational environment is abominable, ageing resistance and oil resistance are poor and external factor, lead to the fact the gas to reveal rapidly, thereby take place the incident.

Disclosure of Invention

The utility model aims at the above-mentioned problem that exists among the prior art, provide one kind can carry out the gas fast and overflow and cut off and the high efficiency gas that safety protection performance is good and overflow the trip valve, solve above problem.

The purpose of the utility model can be realized by the following technical proposal: the utility model provides a high efficiency gas overflows trip valve, is including the valve body that has the gas circulation chamber, the valve body be provided with gas outlet and air inlet that all is linked together with the gas circulation chamber, its characterized in that, valve body gas outlet department be provided with the connecting pipe that is convenient for be connected with the rubber tube, the gas circulation intracavity be provided with and be used for gaseous quick overflow the spheroid that cuts off, be located gas circulation intracavity wall on set up the recess that supplies spheroid movable mounting, the spheroid under the pressure differential effect portable to connecting pipe pipeline mouth department form the cross-sectional area that overflows, be located connecting pipe and valve body junction be provided with the spacing portion that is used for preventing the spheroid skew, the gas circulation intracavity be provided with the spacing spring that is used for preventing the spheroid skew, just the valve body on be provided with and be linked together rather than gas circulation chamber and be used for promoting the spheroid to remove the reset assembly in the recess.

In foretell high efficiency gas overflows trip valve, reset unit by be connected with the valve body and with the gas circulation connecting seat that the chamber is linked together, be located the connecting seat and be used for promoting the valve rod that the spheroid resets, be located valve rod one end fixed connection and be used for controlling briquetting and the cover of its valve rod work establish with the valve rod on and be used for valve rod elasticity reset's reset spring to constitute, just connecting seat and valve body between be connected through the screw thread.

In foretell high efficiency gas overflows the trip valve, the transversal setting of personally submitting "T" shape structure of valve rod, the connecting seat on set up the through-hole that supplies valve rod swing joint, be located the through-hole internal perisporium on have inside circumference protruding and be used for the valve rod activity spacing and reset spring to support and lean on the bellying of installation, the briquetting in set up the spread groove that supplies connecting seat swing joint, be located the connecting groove bottom on set up the connecting portion that supply valve rod one end fixed connection, just spread groove and through-hole cooperable form and supply valve rod swing joint and reset spring to support and lean on the activity chamber of installation.

In foretell high efficiency gas overflows the trip valve, reset spring one end support to lean on installing in the spread groove tank bottom, the other end supports to lean on installing on the bellying, is located bellying both sides all be provided with the sealing washer that is used for strengthening sealed effect, and be located reset spring supports to have on the sealing washer that leans on the installation department and prevents the sealing washer skew and supply reset spring to support to lean on the fender ring of installation.

In foretell high efficiency gas overflows trip valve, spacing portion be the loop configuration setting, spacing portion internal diameter be less than the spheroid diameter and install on the connecting tube, just spacing portion and spacing spring be located gas circulation intracavity respectively and be located the spheroid both sides.

Compared with the prior art, this high efficiency gas overflows trip valve has following advantage:

1. when the gas medium that hypervelocity flows through the spheroid surface, can produce the pressure differential on the spheroid, when the velocity of flow or the flow of gas medium surpassed safe threshold value and lead to the pressure differential to be greater than spheroidal gravity, atmospheric pressure alright drive spheroid break away from the recess rebound in order to reduce the flow area of gas circulation chamber, prevent that gas medium from further leaking, and this valve can lead to the overspeed or can close rapidly when overflowing because of reasons such as revealing, avoid the situation to enlarge, moreover, the steam generator is simple in structure, think about ingeniously, therefore, the clothes hanger is strong in practicability.

Drawings

Fig. 1 is a schematic perspective view of the high-efficiency gas overflow cut-off valve.

Fig. 2 is a schematic diagram of a half-section structure of the high-efficiency gas overflow cut-off valve.

Fig. 3 is a schematic view of a part a of the enlarged structure in fig. 2.

In the figure, 1, a valve body; 2. a gas circulation chamber; 3. an air outlet; 4. an air inlet; 5. a connecting pipe; 6. a sphere; 7. a groove; 8. a limiting part; 9. a limiting spring; 10. a connecting seat; 11. a valve stem; 12. briquetting; 13. a return spring; 14. a through hole; 15. a boss portion; 16. connecting grooves; 17. a connecting portion; 18. a seal ring; 19. and (4) a baffle ring.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

As shown in fig. 1, fig. 2 and fig. 3, the high-efficiency gas flow-through cut-off valve comprises a valve body 1 with a gas flow-through cavity 2, the valve body 1 is provided with a gas outlet 3 and a gas inlet 4 which are both communicated with the gas flow-through cavity 2, a connecting pipe 5 which is convenient to be connected with a rubber pipe is arranged at the gas outlet 3 of the valve body 1, a sphere 6 for quickly cutting off gas flow-through is arranged in the gas flow-through cavity 2, a groove 7 for movably mounting the sphere 6 is formed in the inner wall of the gas flow-through cavity 2, the sphere 6 can move to the pipe orifice of the connecting pipe 5 under the action of pressure difference to form a flow-through sectional area, a limiting part 8 for preventing the sphere 6 from deviating is arranged at the joint of the connecting pipe 5 and the valve body 1, a limiting spring 9 for preventing the sphere 6 from deviating is arranged in the gas flow-through cavity 2, a reset component which is communicated with the gas flow-through cavity 2 and used for pushing the sphere 6 to move into the groove 7 is arranged on the valve body 1, the specific size, the sphere 6, the weight, the size, the specific structure and the specific structure of the sphere 6 and the flow-through cavity can be designed according to reduce the actual requirements, and the sectional area of the sphere 2 without limitation.

Principle of operation

When an overspeed gas medium flows through the surface of the sphere 6, pressure difference is generated on the sphere 6, when the flow velocity or the flow rate of the gas medium exceeds a safety threshold value, the pressure difference is larger than the gravity of the sphere 6, the sphere 6 can be driven by air pressure to separate from the groove 7 to reduce the overflowing area of the circulating cavity, the gas medium is prevented from further leaking, the depth of the groove 7 can be designed in advance according to a gas flow threshold value needing early warning, so that when the gas flow reaches the threshold value, the sphere 6 can rapidly separate from the groove 7 to achieve the purpose of cutting off the gas circulating cavity 2, the limiting part 8 and the limiting spring 9 are arranged to limit two sides of the sphere 6, and the position of the sphere 6 is prevented from being deviated and finally cannot fall back into the groove 7 in the process of downward movement of the pressure difference and when the sphere 6 separates from the groove 7 due to side turning of the valve;

the method comprises the steps that firstly, a valve body 1 is installed in a corresponding pipeline, so that a gas medium can enter a gas flow through cavity 2 through an air inlet 4 and then flow out through a connecting pipe 5 at an air outlet 3, when a pipeline positioned at the downstream side of the valve body 1 leaks, the flow and the flow rate of the gas medium can be rapidly increased, and according to Bernoulli's principle, the pressure in a place with large flow rate is small, so that when the gas medium with overspeed flows through the surface of the ball body 6, a pressure difference can be generated on the ball body 6, when the flow rate or the flow rate of the gas medium exceeds a safety threshold value, so that the pressure difference is larger than the gravity of the ball body 6, the ball body 6 can be driven by air pressure to separate from a groove 7 to move upwards to reduce the flow area of the flow through cavity, and further leakage of the gas medium is prevented, it can be understood that the distance that the ball body 6 moves upwards moves from the groove 7 is larger when the flow rate or the flow rate of the gas medium exceeds the safety threshold value, the groove 7 is deeper, the distance that the ball body 6 moves to the gas flow through cavity 2 is cut off is larger, the gas flow through cavity 2 is designed in advance, and the gas flow through cavity 6 can be quickly, and the gas flow through cavity 6 can be cut off when the ball body 6 is in an upstream state, and the gas flow through cavity 2 is quickly kept;

when the gas circulation cavity 2 needs to be communicated again, the ball body 6 can be pushed back into the groove 7 through the resetting component structure, at the moment, the ball body 6 does not block the gas medium flow path any more, and the gas medium can flow again.

In detail, the reset assembly comprises a connecting seat 10 connected with the valve body 1 and communicated with the gas circulation cavity 2, a valve rod 11 positioned in the connecting seat 10 and used for pushing the sphere 6 to reset, a pressing block 12 positioned at one end of the valve rod 11 and fixedly connected with the valve rod 11 and used for controlling the valve rod 11 to work, and a reset spring 13 sleeved on the valve rod 11 and used for elastically resetting the valve rod 11, wherein the connecting seat 10 is connected with the valve body 1 through threads

Further saying, the transversal setting of "T" shape structure of personally submitting of valve rod 11, set up the through-hole 14 that supplies valve rod 11 swing joint on the connecting seat 10, it leans on the bellying 15 of installation to have inside circumference protruding and be used for valve rod 11 activity spacing and reset spring 13 on 14 internal perisporium of through-hole to be located, set up the spread groove 16 that supplies connecting seat 10 swing joint in the briquetting 12, be located and set up the connecting portion 17 that supplies 11 one end fixed connection of valve rod on the spread groove 16 bottom, and spread groove 16 and through-hole 14 cooperable form and supply 11 swing joint of valve rod and reset spring 13 to lean on the movable chamber of installation.

In a further detail, one end of the return spring 13 abuts against and is installed at the bottom of the connecting groove 16, the other end of the return spring abuts against and is installed on the protruding portion 15, sealing rings 18 used for enhancing the sealing effect are arranged on two sides of the protruding portion 15, and a baffle ring 19 which is used for preventing the sealing rings 18 from offsetting and allowing the return spring 13 to abut against and be installed is arranged on the sealing ring 18 which abuts against and is located at the installation position of the return spring 13.

Further saying in detail, spacing portion 8 is the loop configuration setting, and 8 internal diameters in spacing portion are less than 6 diameters of spheroid and install on connecting pipe 5 says, and spacing portion 8 and spacing spring 9 are located gas circulation chamber 2 respectively and are located 6 both sides of spheroid.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Although the terms of the valve body 1, the gas flow-through chamber 2, the gas outlet 3, the gas inlet 4, the connecting pipe 5, the ball 6, the groove 7, the stopper portion 8, the stopper spring 9, the connecting seat 10, the valve stem 11, the pressing piece 12, the return spring 13, the through hole 14, the protruding portion 15, the connecting groove 16, the connecting portion 17, the seal ring 18, the stopper ring 19, etc. are used more frequently, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed as being without limitation to any one of the additional limitations of the present invention.

Claims

1. The utility model provides a high efficiency gas overflows trip valve, is including valve body (1) that has gas circulation chamber (2), valve body (1) be provided with gas outlet (3) and air inlet (4) that all are linked together with gas circulation chamber (2), a serial communication port, valve body (1) gas outlet (3) department be provided with connecting pipe (5) that are convenient for be connected with the rubber tube, gas circulation chamber (2) in be provided with and be used for gaseous fast overflow to cut off spheroid (6), be located gas circulation chamber (2) inner wall on set up recess (7) that supply spheroid (6) movable mounting, spheroid (6) can remove under the pressure differential effect to connecting pipe (5) pipeline department and form the cross-sectional area, be located connecting pipe (5) and valve body (1) junction be provided with spacing portion (8) that are used for preventing spheroid (6) skew, valve body (1) in be provided with spacing spring (9) that are used for preventing spheroid (6) skew, just valve body (1) on be provided with rather than being linked together and be used for promoting gas circulation chamber (2) and remove recess subassembly (7) that resets.

2. The high-efficiency gas overflowing shutoff valve according to claim 1, wherein the reset assembly comprises a connecting seat (10) connected with the valve body (1) and communicated with the gas flowing cavity (2), a valve rod (11) located in the connecting seat (10) and used for pushing the ball body (6) to reset, a pressing block (12) located at one end of the valve rod (11) and fixedly connected with the valve rod (11) and used for controlling the valve rod (11) to work, and a reset spring (13) sleeved on the valve rod (11) and used for elastic reset of the valve rod (11), and the connecting seat (10) is connected with the valve body (1) through threads.

3. The high-efficiency gas overflowing shutoff valve according to claim 2, wherein the cross section of the valve rod (11) is arranged in an inverted T-shaped structure, the connecting seat (10) is provided with a through hole (14) for movably connecting the valve rod (11), the inner peripheral wall of the through hole (14) is provided with a protruding part (15) which protrudes inwards in the circumferential direction and is used for movably limiting the valve rod (11) and abutting against the reset spring (13) for installation, the pressing block (12) is internally provided with a connecting groove (16) for movably connecting the connecting seat (10), the bottom of the connecting groove (16) is provided with a connecting part (17) for fixedly connecting one end of the valve rod (11), and the connecting groove (16) and the through hole (14) can be matched to form a movable cavity for movably connecting the valve rod (11) and abutting against the reset spring (13) for installation.

4. The high-efficiency gas overflow cut-off valve as claimed in claim 3, wherein one end of the return spring (13) is abutted against and mounted at the bottom of the connecting groove (16), the other end of the return spring is abutted against and mounted on the boss (15), sealing rings (18) for enhancing the sealing effect are arranged on two sides of the boss (15), and a baffle ring (19) for preventing the sealing rings (18) from offsetting and allowing the return spring (13) to abut against and mount is arranged on the sealing ring (18) at the abutting position of the return spring (13).

5. The high-efficiency gas overflowing shutoff valve according to claim 1, wherein the limiting portion (8) is of an annular structure, the inner diameter of the limiting portion (8) is smaller than the diameter of the sphere (6) and is arranged on the connecting pipe (5), and the limiting portion (8) and the limiting spring (9) are respectively positioned in the gas flowing cavity (2) and on two sides of the sphere (6).