CN219866480U - Novel self-closing valve - Google Patents

Abstract

The utility model provides a novel self-closing valve, and belongs to the technical field of valves. The self-closing valve solves the problems that the sealing performance inside the existing self-closing valve is poor and air leakage is easy to occur. The utility model provides a novel self-closing valve, including the valve body that has the inlet end, be equipped with the push rod in the valve body, be equipped with the pressure cover that links to each other with the push rod in the inlet end, the valve body is close to the inner wall department of pressure cover and has radial extension and supplies the deepening platform that the push rod passed through, press the end fixing who is close to the deepening platform on the cover has sealing device, sealing device is including fixing the sealing member body on pressing the cover and locating the push rod in the cover, sealing member body outer lane department has inwards draws in and blocks and press the tight portion of buckling on the cover, a plurality of inwards sunken interior pressure grooves have been seted up to the terminal surface position that is close to the pressure cover on the sealing member body, form between the two adjacent interior pressure grooves and outwards arch relatively and with the outer pressure portion that presses the cover terminal surface to offset. The utility model has the advantage of good sealing performance.

Description

Novel self-closing valve

Technical Field

The utility model belongs to the technical field of valves, and relates to a self-closing valve, in particular to a novel 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 existing self-closing valve in the market has poor internal tightness and is easy to leak air, so that the use safety of a gas system is affected.

Disclosure of Invention

The utility model aims to solve the problems in the prior art and provides a novel self-closing valve with high sealing performance.

The aim of the utility model can be achieved by the following technical scheme: the utility model provides a novel self-closing valve, includes the valve body that has the inlet end, is equipped with the push rod in the valve body, its characterized in that, the inlet end in be equipped with the pressure cover that links to each other with the push rod, the valve body be close to the inner wall department of pressure cover have radial extension and supply the deepening platform that the push rod passed through, the pressure cover on be close to the tip that deepens the platform and be fixed with sealing device, sealing device including fixing on the pressure cover and overlap the sealing member body of locating on the push rod, sealing member body outer lane department have inwards draw in and block and press the tight portion of cover, sealing member body on be close to the terminal surface position of pressure cover and seted up a plurality of inwards sunken interior indent, two adjacency form relative outwards arch and with the outer pressure portion of pressure cover terminal surface offset between the interior indent, sealing member body on be close to the terminal surface position of deepening platform and seted up the seal groove, the deepening bench on have and stretch into in the seal groove and form sealed protruding of effect.

In the novel self-closing valve, the sealing element body is fixedly adhered to the surface of the pressing sleeve.

In the novel self-closing valve, the sealing element body is made of rubber materials.

Compared with the prior art, the self-closing valve has the advantage of good sealing performance.

Drawings

Fig. 1 is a schematic structural view of the novel self-closing valve.

In the figure, 1, an air inlet end; 2. a valve body; 3. a push rod; 4. pressing the sleeve; 5. deepening the platform; 6. a seal body; 7. a fastening part; 8. an internal pressure tank; 9. an external pressure part; 10. sealing grooves; 11. and a sealing protrusion.

Detailed Description

The following are specific embodiments of the present utility model and the technical solutions of the present utility model will be further described with reference to the accompanying drawings, but the present utility model is not limited to these embodiments.

As shown in fig. 1, the novel self-closing valve comprises a valve body 2 with an air inlet end 1, wherein a push rod 3 is arranged in the valve body 2, a pressing sleeve 4 connected with the push rod 3 is arranged in the air inlet end 1, a deepening table 5 which is radially extended and used for the push rod 3 to pass is arranged at the inner wall of the valve body 2 close to the pressing sleeve 4, a sealing device is fixed at the end part of the pressing sleeve 4 close to the deepening table 5, the sealing device comprises a sealing element body 6 which is fixed on the pressing sleeve 4 and sleeved on the push rod 3, an inner buckling part 7 which is inwards folded and clamped on the pressing sleeve 4 is arranged at the outer ring of the sealing element body 6, a plurality of inner concave pressing grooves 8 are formed at the end surface position of the sealing element body 6 close to the pressing sleeve 4, a sealing groove 10 is formed between the two adjacent inner pressing grooves 8 and is opposite to the outer arching part 9 which is propped against the end surface of the pressing sleeve 4, a sealing groove 10 is formed at the end surface position of the sealing element body 6 close to the deepening table 5, a sealing bulge 11 which stretches into the sealing groove 10 and forms a sealing effect is formed on the deepening table 5, the sealing element body 6 is pushed in the pressing sleeve 3, the sealing element 6 is inwards, the sealing element 6 is clamped on the pressing sleeve 4, the sealing element body 6 and the sealing element 5 is contacted with the sealing element 5, the sealing element 10 is pressed outwards on the sealing element 10, and the sealing element 10 is formed outwards on the sealing element 11.

Further, the sealing member body 6 is fixedly adhered to the surface of the pressing sleeve 4, the positioning effect is formed by the fastening part 7, and then the sealing member body 6 is fixed by adhesion treatment.

Preferably, the seal body 6 is made of a rubber material.

The specific embodiments described herein are offered by way of example only to illustrate the spirit of the utility model. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the utility model or exceeding the scope of the utility model as defined in the accompanying claims.

Although terms such as the intake end 1, the valve body 2, the push rod 3, the pressure sleeve 4, the deepening table 5, the seal body 6, the fastening portion 7, the internal pressure groove 8, the external pressure portion 9, the seal groove 10, the seal protrusion 11, etc. are used more herein, the possibility of using other terms is not excluded. These terms are used merely for convenience in describing and explaining the nature of the utility model; they are to be interpreted as any additional limitation that is not inconsistent with the spirit of the present utility model.

Claims (3)

1. The utility model provides a novel self-closing valve, includes valve body (2) that have inlet end (1), is equipped with push rod (3) in valve body (2), its characterized in that, inlet end (1) in be equipped with push rod (3) continuous pressure cover (4), valve body (2) be close to the inner wall department of pressure cover (4) and have radial extension and supply push rod (3) to pass through deepen platform (5), pressure cover (4) on be close to the tip fixed sealing device who deepen platform (5), sealing device including fixing on pressure cover (4) and overlap sealing member body (6) on locating push rod (3), sealing member body (6) outer lane department have inwards draw in and block and pressure cover (4) on tight buckling portion (7), sealing member body (6) on be close to the terminal surface position of pressure cover (4) and seted up a plurality of inwards sunken interior indent (8), two adjacent form between interior indent (8) and outwards arch relatively and with pressure cover (4) terminal surface offset sealing member (9) and seal groove (10) have the seal groove (10) of stretching up in the seal platform (10).

2. The novel self-closing valve according to claim 1, wherein the sealing member body (6) is fixedly adhered to the surface of the pressing sleeve (4).

3. A new self-closing valve according to claim 1, characterized in that the sealing body (6) is made of rubber material.