Air pressure valve seat

Abstract

The utility model discloses an air pressure valve seat which comprises a valve seat body, a cleaning mechanism is installed in the valve seat body, the cleaning mechanism comprises an elastic supporting assembly, the elastic supporting assembly is installed in the valve seat body, an extrusion ring is installed on the top of the elastic supporting assembly, and a guide piece is installed on the side, close to the sealing face of the valve seat body, of the extrusion ring. Adsorption cotton used for cleaning the sealing face of the valve seat body is installed on the guide piece, and a push block used for pushing the extrusion ring is installed at the bottom of the valve element body. Compared with the prior art, the air pressure valve seat has the advantages that solid particles on the sealing surface of the valve seat can be removed in the closing process of the valve core, and the solid particles are prevented from hindering or interfering the tight contact between the sealing surface of the valve seat and the surface of the valve core as far as possible, so that the sealing effect of the valve is improved, and the normal work of equipment is ensured; meanwhile, abrasion and corrosion of solid particles to the sealing surface of the valve seat are reduced to a certain extent, the frequency of maintaining or replacing the valve seat by a user is reduced, and the maintenance cost is effectively reduced.

Description

Technical Field

[0001] This utility model belongs to the field of pneumatic valve seat technology, specifically relating to a pneumatic valve seat. Background Technology

[0002] A pneumatic valve is a device that controls fluid flow by being driven by compressed air. The valve core and valve seat are key components of the valve. The valve core is a movable part inside the valve, which adjusts the flow rate and pressure by moving within the valve seat and changing the cross-sectional area of ​​the flow channel. The valve seat is a gasket installed inside the valve body, whose main function is to cooperate with the valve core to form a sealing surface and prevent fluid leakage.

[0003] However, in actual use, the fluid may contain solid particles, and the internal materials of the pneumatic valve will wear down and produce debris over time. During low flow rates or the opening and closing of the pneumatic valve, these solid particles may remain on the valve seat sealing surface, hindering or interfering with the tight contact between the valve seat sealing surface and the valve core surface. This can not only reduce the valve's sealing effect, leading to gas leakage and affecting the normal operation of the equipment, but also cause wear and corrosion on the valve seat sealing surface, requiring users to perform more frequent maintenance or even replace damaged valve seats, increasing maintenance costs.

[0004] Therefore, it is necessary to provide a pneumatic valve seat to address the aforementioned technical problems. Utility Model Content

[0005] The purpose of this invention is to provide a pneumatic valve seat that can solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the technical solution provided by a specific embodiment of this utility model is as follows:

[0007] A pneumatic valve seat includes a valve seat body, a cleaning mechanism installed inside the valve seat body, the cleaning mechanism including an elastic support assembly installed inside the valve seat body, a compression ring installed on the top of the elastic support assembly, a guide plate installed on the side of the compression ring near the sealing surface of the valve seat body, an absorbent cotton for cleaning the sealing surface of the valve seat body installed on the guide plate, and a push block for pushing the compression ring installed at the bottom of the valve core body.

[0008] In one or more embodiments of the present invention, the elastic support assembly includes a connecting cylinder installed in the valve seat body, a first connecting rod installed at the upper end of the connecting cylinder, a spring matching the first connecting rod installed inside the connecting cylinder, and a limiting assembly matching the spring installed at one end of the connecting cylinder.

[0009] In one or more embodiments of this utility model, the limiting component includes a limiting piece, the limiting piece is installed at the bottom end of the first connecting rod, and the upper end of the connecting cylinder is provided with a limiting groove that matches the limiting piece.

[0010] In one or more embodiments of this utility model, a collection plate matching the absorbent cotton is installed on the side of the compression ring near the sealing surface of the valve seat body.

[0011] In one or more embodiments of this utility model, the collecting plate is an arc-shaped silicone collecting plate, and the collecting plate is interference-fitted with the sealing surface of the valve seat body.

[0012] In one or more embodiments of this utility model, a connecting ring is installed on one side of the guide plate, the absorbent cotton is fixedly connected to the connecting ring, a T-shaped connecting block is installed on the side of the connecting ring near the guide plate, and a first sliding groove matching the T-shaped connecting block is opened on the guide plate.

[0013] In one or more embodiments of this utility model, the T-shaped connecting block is an elastic T-shaped connecting block, and the longitudinal dimension of the end of the T-shaped connecting block away from the connecting ring is greater than the longitudinal dimension of the first sliding groove.

[0014] In one or more embodiments of this utility model, a rotating assembly for rotating the absorbent cotton is installed inside the valve seat body.

[0015] In one or more embodiments of this utility model, the rotating assembly includes a second connecting rod, which is installed at the bottom of the connecting ring. A slider is installed on the side of the connecting ring near the sealing surface of the valve seat body, and a second sliding groove matching the slider is formed on the inner wall of the valve seat body.

[0016] In one or more embodiments of this utility model, the second groove is arc-shaped.

[0017] Compared with the prior art, the pneumatic valve seat of this utility model can remove solid particles from the valve seat sealing surface during the valve core closing process, so as to avoid solid particles from hindering or interfering with the tight contact between the valve seat sealing surface and the valve core surface, thereby improving the sealing effect of the valve and ensuring the normal operation of the equipment. At the same time, it reduces the wear and corrosion of the valve seat sealing surface by solid particles to a certain extent, reduces the number of times users need to repair or replace the valve seat, and effectively reduces maintenance costs. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure of a pneumatic valve seat in the first embodiment of the present invention;

[0020] Figure 2 This is a schematic cross-sectional view of the first embodiment of the present invention. Figure 1 ;

[0021] Figure 3 This is a schematic cross-sectional view of the first embodiment of the present invention. Figure 2 ;

[0022] Figure 4 This is the first embodiment of the present utility model. Figure 3 Enlarged structural diagram at point A in the diagram;

[0023] Figure 5 This is the first embodiment of the present utility model. Figure 3 Enlarged structural diagram at point B in the diagram;

[0024] Figure 6 This is a schematic diagram of a partial explosion structure in the first embodiment of the present invention;

[0025] Figure 7 This is the first embodiment of the present utility model. Figure 6 Enlarged structural diagram at point C;

[0026] Figure 8 This is a schematic diagram of the cleaning mechanism driving process in the first embodiment of the present invention.

[0027] Explanation of key figure labels:

[0028] 1. Valve seat body; 201. Compression ring; 202. Guide plate; 2021. First slide groove; 203. Absorbent cotton; 204. Connecting cylinder; 2041. Limiting groove; 205. First connecting rod; 2051. Limiting plate; 206. Spring; 207. Collecting plate; 208. Connecting ring; 209. T-shaped connecting block; 301. Second connecting rod; 302. Slider; 303. Second slide groove; 401. Valve core body; 402. Push block. Detailed Implementation

[0029] To enable those skilled in the art to better understand the technical solutions of this utility model, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.

[0030] like Figure 1 As shown, a pneumatic valve seat according to one embodiment of the present invention includes a valve seat body 1 and a valve core body 401. A cleaning mechanism is installed inside the valve seat body 1, and a push block 402 for driving the cleaning mechanism is installed at the bottom of the valve core body 401. When the pneumatic valve uses compressed air to push the valve core body 401 and the push block 402 in the actuator towards the sealing surface of the valve seat body 1 to realize the opening, closing or flow regulation of the valve, the cleaning mechanism can move with the push block 402 to remove solid particles from the sealing surface of the valve seat body 1, so as to avoid solid particles interfering with the tight contact between the sealing surface of the valve seat body 1 and the surface of the valve core body 401 and affecting the sealing effect of the valve.

[0031] like Figures 1-4 As shown, the cleaning mechanism includes an elastic support assembly. The bottom of the elastic support assembly is fixedly connected to the valve seat body 1. A compression ring 201 is installed on the top of the elastic support assembly. A guide plate 202 is fixedly connected to the side of the compression ring 201 near the sealing surface of the valve seat body 1. An absorbent cotton 203 for cleaning the sealing surface of the valve seat body 1 is installed on the guide plate 202. The push block 402 pushes the compression ring 201 downward. The compression ring 201 drives the guide plate 202 and the absorbent cotton 203 downward, so that the absorbent cotton 203 can absorb and remove solid particles attached to the sealing surface of the valve seat body 1 before the valve core body 401 contacts the sealing surface of the valve seat body 1. This avoids, to some extent, the negative impact of solid particles on the tight contact between the sealing surface of the valve seat body 1 and the valve core body 401.

[0032] like Figure 5 As shown, the elastic support assembly can be a connecting cylinder 204 installed inside the valve seat body 1. A first connecting rod 205 is installed at the upper end of the connecting cylinder 204, and a spring 206 matching the first connecting rod 205 is installed inside the connecting cylinder 204. A limiting assembly matching the spring 206 is installed at one end of the connecting cylinder 204. When the push block 402 drives the absorbent cotton 203 to clean the inner wall of the valve seat body 1, the spring 206 shortens to store elastic potential energy. When the user needs to open the valve and move the valve core body 401 upward, the spring 206 gradually releases its elastic potential energy as the push block 402 moves away, extending back to its original state for the next cleaning.

[0033] like Figures 1-5As shown, the limiting assembly includes a limiting piece 2051, which is installed at the bottom end of the first connecting rod 205. A limiting groove 2041 matching the limiting piece 2051 is provided at the upper end of the connecting cylinder 204. The cooperation between the limiting groove 2041 and the limiting piece 2051 can, to a certain extent, prevent the first connecting rod 205 from being ejected from the connecting cylinder 204 due to the hyperelastic deformation of the spring 206 the moment the push block 402 leaves the compression ring 201, thus avoiding any impact on the subsequent normal use of the cleaning mechanism.

[0034] like Figure 4 As shown, a collection plate 207 matching the absorbent cotton 203 is installed on the side of the compression ring 201 near the sealing surface of the valve seat body 1. During the cleaning process of the absorbent cotton 203 on the sealing surface of the valve seat body 1, solid particles may be scattered inside the valve seat body 1. The collection plate 207 can collect the solid particles again, improving the cleaning effect of the cleaning mechanism.

[0035] like Figures 1-4 As shown, the collecting plate 207 is an arc-shaped silicone collecting plate 207, which is interference-fitted with the sealing surface of the valve seat body 1. The arc-shaped silicone collecting plate 207, which is interference-fitted with the sealing surface of the valve seat body 1, can better fit the sealing surface of the valve seat body 1, better collect solid particles, and further reduce the impact of solid particles on the sealing surface of the valve seat body 1.

[0036] like Figures 4-7 As shown, a connecting ring 208 is installed on one side of the guide plate 202, and the absorbent cotton 203 is fixedly connected to the connecting ring 208. A T-shaped connecting block 209 is installed on the side of the connecting ring 208 near the guide plate 202. A first groove 2021 matching the T-shaped connecting block 209 is formed on the guide plate 202. When the absorbent cotton 203 is damaged, the user can squeeze the T-shaped connecting block 209 to remove it from the first groove 2021, thereby replacing the absorbent cotton 203 and ensuring the effectiveness of the cleaning mechanism.

[0037] like Figures 6-7 As shown, the T-shaped connecting block 209 is an elastic T-shaped connecting block 209, and the longitudinal dimension of the end of the T-shaped connecting block 209 away from the connecting ring 208 is larger than the longitudinal dimension of the first sliding groove 2021. The elastic T-shaped connecting block 209 can facilitate the user to remove and replace the absorbent cotton 203 to a certain extent.

[0038] like Figures 3-5 As shown, a rotating assembly for rotating the absorbent cotton 203 is installed inside the valve seat body 1. The rotating absorbent cotton 203 utilizes lateral friction to further improve the removal effect of solid particles.

[0039] like Figure 5As shown, the rotating assembly includes a second connecting rod 301, which is mounted on the bottom of the connecting ring 208. A slider 302 is mounted on the side of the connecting ring 208 near the sealing surface of the valve seat body 1. A second groove 303 matching the slider 302 is formed on the inner wall of the valve seat body 1. When the squeezing ring 201 moves downward with the push block 402, the squeezing ring 201 drives the second connecting rod 301 and the slider 302 to move downward. Since the slider 302 is slidably connected in the arc-shaped second groove 303, as the slider 302 moves downward, the slider 302 also moves laterally, causing the absorbent cotton 203 to move laterally, ensuring that all areas of the sealing surface of the valve seat body 1 are thoroughly cleaned.

[0040] During use, when the user controls the valve core body 401 to close the valve downwards, the pressure generated by the push block 402 on the squeezing ring 201 causes the squeezing ring 201 and the absorbent cotton 203 to move downwards, cleaning the solid particles on the sealing surface of the valve seat body 1, and minimizing the possibility that solid particles may obstruct or interfere with the tight contact between the sealing surface of the valve seat body 1 and the surface of the valve core body 401.

[0041] As the absorbent cotton 203 moves downward, the slider 302 and the second groove 303 work together to make the absorbent cotton 203 rotate within a certain angle, thereby effectively removing solid particles and ensuring that all areas are thoroughly cleaned as much as possible.

[0042] When the adsorbent cotton 203 has a large number of adsorbed particles, affecting the cleaning effect, the T-shaped connecting block 209 and the first sliding groove 2021 cooperate to facilitate the user to replace the adsorbent cotton 203, so as to ensure the cleaning effect on the sealing surface of the valve seat body 1.

[0043] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0044] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A pneumatic valve seat, characterized in that, include: The valve seat body and the valve core body are provided, and a cleaning mechanism is installed inside the valve seat body. The cleaning mechanism includes an elastic support assembly installed in the valve seat body. A compression ring is installed on the top of the elastic support assembly. A guide plate is installed on the side of the compression ring near the sealing surface of the valve seat body. An absorbent cotton for cleaning the sealing surface of the valve seat body is installed on the guide plate. The bottom of the valve core body is equipped with a pusher block for pushing the compression ring.

2. A pneumatic valve seat according to claim 1, characterized in that, The elastic support assembly includes a connecting cylinder installed inside the valve seat body, a first connecting rod installed at the upper end of the connecting cylinder, a spring matching the first connecting rod installed inside the connecting cylinder, and a limiting assembly matching the spring installed at one end of the connecting cylinder.

3. A pneumatic valve seat according to claim 2, characterized in that, The limiting component includes a limiting piece, which is installed at the bottom end of the first connecting rod, and the upper end of the connecting cylinder has a limiting groove that matches the limiting piece.

4. A pneumatic valve seat according to any one of claims 1-3, characterized in that, A collection plate matching the absorbent cotton is installed on the side of the compression ring near the sealing surface of the valve seat body.

5. A pneumatic valve seat according to claim 4, characterized in that, The collecting plate is an arc-shaped silicone collecting plate, and the collecting plate is interference-fitted with the sealing surface of the valve seat body.

6. A pneumatic valve seat according to claim 1, characterized in that, A connecting ring is installed on one side of the guide plate, and the absorbent cotton is fixedly connected to the connecting ring. A T-shaped connecting block is installed on the side of the connecting ring near the guide plate, and a first sliding groove matching the T-shaped connecting block is opened on the guide plate.

7. A pneumatic valve seat according to claim 6, characterized in that, The T-shaped connecting block is an elastic T-shaped connecting block, and the longitudinal dimension of the end of the T-shaped connecting block away from the connecting ring is greater than the longitudinal dimension of the first sliding groove.

8. A pneumatic valve seat according to claim 1, characterized in that, The valve seat body is equipped with a rotating component for rotating the absorbent cotton.

9. A pneumatic valve seat according to claim 8, characterized in that, The rotating assembly includes a second connecting rod, which is installed at the bottom of the connecting ring. A slider is installed on the side of the connecting ring near the sealing surface of the valve seat body. A second sliding groove matching the slider is opened on the inner wall of the valve seat body.

10. A pneumatic valve seat according to claim 9, characterized in that, The second groove is arc-shaped.

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