CN218992475U

CN218992475U - Novel gas self-closing valve

Info

Publication number: CN218992475U
Application number: CN202223506769.XU
Authority: CN
Inventors: 祝志广; 骆益水; 杨启柱; 陈立彬; 池俊杰
Original assignee: Zhejiang Ruige Copper Co ltd
Current assignee: Zhejiang Ruige Copper Co ltd
Priority date: 2022-12-28
Filing date: 2022-12-28
Publication date: 2023-05-09
Anticipated expiration: 2032-12-28

Abstract

The utility model relates to the technical field of gas self-closing valves, in particular to a novel gas self-closing valve which comprises a gas self-closing valve body and an air outlet pipe, wherein the right end of the gas self-closing valve body is fixedly connected with the air outlet pipe, and the left end of the gas self-closing valve body is fixedly connected with the air inlet pipe. Through when the pressure of gas is greater than the repulsion of first magnetic shoe and second magnetic shoe, the sealing plug drives the cover piece and removes, the cover piece drives first magnetic shoe and removes for the sealing plug removes sealedly to the gas self-closing valve body, and gas passes through the intake pipe and gets into the gas self-closing valve body and flow through the outlet duct in, and when the pressure of gas is less than the repulsion of first magnetic shoe and second magnetic shoe, the second magnetic shoe extrudees first magnetic shoe and moves down, makes the sealing plug seal the gas self-closing valve body, and when the pressure of gas is too big, the cover piece drives through rack drive gear rotation, and the gear drives the bracing piece and rotates, and the bracing piece drives the rubber piece and rotate, seals the outlet duct.

Description

Novel gas self-closing valve

Technical Field

The utility model relates to the technical field of gas self-closing valves, in particular to a novel gas self-closing valve.

Background

The self-closing valve for pipeline gas is installed on the pipeline of low-pressure gas system, and when the gas supply pressure of pipeline is under-pressure or over-pressure, it can be automatically closed and opened manually without using electricity or other external power. The pipeline gas self-closing valve is suitable for pipeline natural gas, liquefied petroleum gas and artificial gas.

For example, the authority bulletin number CN217539754U, a gas self-closing valve, although improving the sensitivity of the self-closing valve, the gas self-closing valve in the above document is automatically opened and closed by utilizing the elasticity of the spring in the use process, however, the elasticity of the spring is easy to be weakened due to long-time use of the spring, so that the tightness of the spring to the gas self-closing valve of the sealing plug is weakened, and after the gas use is stopped, the gas still flows into the outside through the gas self-closing valve, so that the gas is easy to leak, and the service life of the gas self-closing valve is reduced.

Disclosure of Invention

The utility model aims to solve the problem that the elasticity of a spring is weakened for a long time to easily cause gas leakage in the prior art, and provides a novel gas self-closing valve.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the utility model provides a novel gas self-closing valve, includes gas self-closing valve body and outlet duct, the right-hand member and the outlet duct of gas self-closing valve body are fixed to link to each other, the left end of gas self-closing valve body links to each other with the intake pipe is fixed, the mid-mounting of intake pipe has the control valve, the left end of intake pipe (the left end links to each other with the connecting thread pipe is fixed, the middle part and the closely laminating of sealing plug of gas self-closing valve body, the top of sealing plug is equipped with self-closing structure.

Preferably, the self-closing structure comprises a sleeve block, the bottom end of the sleeve block is fixedly connected with the sealing plug, the bottom of the sleeve block is fixedly connected with the first magnetic block, the top of the sleeve block is slidably connected with the second magnetic block, the right end of the sleeve block is fixedly connected with the connecting block, the right end of the connecting block is fixedly connected with the rack, and the right side of the rack is meshed with the gear.

Preferably, the top end of the second magnetic block is fixedly connected with a guide rod, and the top end of the guide rod is fixedly connected with the gas self-closing valve body.

Preferably, the two ends of the shaft body of the gear are rotationally connected with the valve body of the gas self-closing valve, and the front side of the shaft body of the gear is fixedly connected with the supporting rod.

Preferably, the top end of the supporting rod is fixedly connected with the rubber block.

The novel gas self-closing valve provided by the utility model has the beneficial effects that: through when the pressure of gas is greater than the repulsion of first magnetic shoe and second magnetic shoe, the sealing plug drives the cover piece and removes, the cover piece drives first magnetic shoe and removes, make the sealing plug remove sealedly to the gas self-closing valve body, gas gets into the gas self-closing valve body through the intake pipe and flows through the outlet duct in, when the pressure of gas is less than the repulsion of first magnetic shoe and second magnetic shoe, the second magnetic shoe extrudees first magnetic shoe and removes downwards, make the sealing plug seal the gas self-closing valve body, when the pressure of gas is too big, the cover piece drives the connecting block and removes, the connecting block drives rack and removes the rack and drive the gear and rotate, the gear drives the bracing piece and drives the rubber piece and rotate, seal the outlet duct, in this kind of mode has replaced original self-closing mode, thereby improved the life of gas self-closing valve, thereby prevent because the elasticity that makes the spring weakens for a long time and cause the condition that the gas is revealed easily.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic cross-sectional view of FIG. 1;

FIG. 3 is a schematic diagram of the structure of FIG. 2A;

fig. 4 is a schematic diagram of the structure of fig. 2B.

In the figure: 1. the gas self-closing valve comprises a gas self-closing valve body, 2, an air outlet pipe, 3, a rubber block, 4, a self-closing structure, 4a1, a sleeve block, 4a2, a first magnetic block, 4a3, a second magnetic block, 4a4, a connecting block, 4a5, a rack, 4a6, a gear, 4b1, a slide bar, 4b2, a limiting block, 5, an air inlet pipe, 6, a control valve, 7, a connecting threaded pipe, 8, a sealing plug, 9, a guide rod, 10 and a supporting rod.

Detailed Description

The utility model is further described below with reference to the accompanying drawings:

example 1:

referring to fig. 1-4: in this embodiment, a novel gas self-closing valve, including gas self-closing valve body 1 and outlet duct 2, the right-hand member and the outlet duct 2 of gas self-closing valve body 1 are fixed to link to each other, the left end of gas self-closing valve body 1 links to each other with intake pipe 5 is fixed, the mid-mounting of intake pipe 5 has control valve 6, the left end of intake pipe 5 links to each other with connecting screw pipe 7 is fixed, the middle part and the sealing plug 8 of gas self-closing valve body 1 are closely laminated, the top of sealing plug 8 is equipped with self-closing structure 4 to this kind of mode has replaced original self-closing mode, thereby improved the life of gas self-closing valve.

The self-closing structure 4 comprises a sleeve block 4a1, the bottom end of the sleeve block 4a1 is fixedly connected with a sealing plug 8, the bottom of the sleeve block 4a1 is fixedly connected with a first magnetic block 4a2, the top of the sleeve block 4a1 is slidably connected with a second magnetic block 4a3, the right end of the sleeve block 4a1 is fixedly connected with the connecting block 4a4, the magnetism of the contact surface of the first magnetic block 4a2 and the second magnetic block 4a3 is the same magnetic pole, the sealing plug 8 seals the gas self-closing valve body 1 by utilizing the repulsive force of the first magnetic block 4a2 and the second magnetic block 4a3, when the pressure of the gas is larger than the repulsive force of the first magnetic block 4a2 and the second magnetic block 4a3, the sealing plug 8 drives the sleeve block 4a1 to move, the sleeve block 4a1 drives the first magnetic block 4a2 to move, the sealing plug 8 is used for sealing the gas self-closing valve body 1, when the pressure of the gas is overlarge, the sleeve block 4a1 drives the connecting block 4a4 to move, the connecting block 4a4 drives the rack 4a5 to move the rack 4a5 to drive the gear 4a6 to rotate, the gear 4a6 drives the supporting rod 10 to rotate, the supporting rod 10 drives the rubber block 3 to rotate, the gas outlet pipe 2 is sealed, the right end of the connecting block 4a4 is fixedly connected with the rack 4a5, the right side of the rack 4a5 is meshed with the gear 4a6, the top end of the second magnetic block 4a3 is fixedly connected with the guide rod 9, the top end of the guide rod 9 is fixedly connected with the gas self-closing valve body 1, the two ends of the shaft body of the gear 4a6 are fixedly connected with the gas self-closing valve body 1, the front side of the shaft body of the gear 4a6 is fixedly connected with the supporting rod 10, and the top end of the supporting rod 10 is fixedly connected with the rubber block 3.

Working principle:

this novel gas self-closing valve is in the use, when the pressure of gas is greater than the repulsion of first magnetic shoe 4a2 and second magnetic shoe 4a3, sealing plug 8 drives cover piece 4a1 and removes, cover piece 4a1 drives first magnetic shoe 4a2 and removes, make sealing plug 8 to gas self-closing valve body 1 relieve sealedly, gas gets into gas self-closing valve body 1 through intake pipe 5 and flows out through outlet duct 2 in, when the pressure of gas is less than the repulsion of first magnetic shoe 4a2 and second magnetic shoe 4a3, second magnetic shoe 4a3 extrudees first magnetic shoe 4a2 and moves downwards, make sealing plug 8 seal gas self-closing valve body 1, when the pressure of gas is too big, cover piece 4a1 drives connecting block 4a4 and removes, connecting block 4a5 drives rack 4a5 and drives gear 4a6 and rotate, gear 4a6 drives 10 and rotate, the bracing piece 10 drives rubber piece 3 and rotate, seal up to outlet duct 2, thereby the mode of replacing the gas self-closing of original gas has been replaced in this way, thereby the life of the gas self-closing valve has been prevented because of having improved the long service life of the spring is easy to cause leakage.

Example 2:

referring to fig. 4: in this embodiment, a novel gas self-closing valve, wherein self-closing structure 4 can also include slide bar 4b1, the top of slide bar 4b1 links to each other with gas self-closing valve body 1 is fixed, the outer wall of slide bar 4b1 links to each other with rack 4a5 slip, the bottom of slide bar 4b1 links to each other with stopper 4b2 is fixed, when rack 4a5 moves, rack 4a4 slides along the outer wall of slide bar 4b1, thereby the practice is restricted the position of rack 4a4, prevent because first magnetic block 4a2 and second magnetic block 4a3 magnetic force lead to rack 4a4 to remove the position mode skew.

While the utility model has been shown and described with reference to a preferred embodiment, it will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the scope of the utility model.

Claims

1. The utility model provides a novel gas self-closing valve, includes gas self-closing valve body (1) and outlet duct (2), the right-hand member and the outlet duct (2) of gas self-closing valve body (1) are fixed to link to each other, its characterized in that: the left end of gas self-closing valve body (1) links to each other with intake pipe (5) is fixed, mid-mounting of intake pipe (5) has control valve (6), the left end of intake pipe (5) links to each other with connecting screwed pipe (7) is fixed, the middle part and the sealing plug (8) of gas self-closing valve body (1) closely laminate, the top of sealing plug (8) is equipped with self-closing structure (4).

2. The novel gas self-closing valve according to claim 1, wherein: the self-closing structure (4) comprises a sleeve block (4 a 1), the bottom end of the sleeve block (4 a 1) is fixedly connected with a sealing plug (8), the bottom of the sleeve block (4 a 1) is fixedly connected with a first magnetic block (4 a 2), the top of the sleeve block (4 a 1) is slidably connected with a second magnetic block (4 a 3), the right end of the sleeve block (4 a 1) is fixedly connected with a connecting block (4 a 4), the right end of the connecting block (4 a 4) is fixedly connected with a rack (4 a 5), and the right side of the rack (4 a 5) is meshed with a gear (4 a 6).

3. The novel gas self-closing valve according to claim 2, wherein: the top end of the second magnetic block (4 a 3) is fixedly connected with a guide rod (9), and the top end of the guide rod (9) is fixedly connected with the gas self-closing valve body (1).

4. The novel gas self-closing valve according to claim 2, wherein: the two ends of the shaft body of the gear (4 a 6) are rotationally connected with the gas self-closing valve body (1), and the front side of the shaft body of the gear (4 a 6) is fixedly connected with the supporting rod (10).

5. The novel gas self-closing valve according to claim 4, wherein: the top end of the supporting rod (10) is fixedly connected with the rubber block (3).