Two-way dustproof air valve assembly of air cylinder

By using a dustproof mesh and threaded tube structure in the cylinder bidirectional dustproof valve assembly, the problem of blockage of traditional valve assemblies in complex environments is solved, thereby improving the cylinder's sealing performance and working efficiency.

CN224161908UActive Publication Date: 2026-04-24SHAANXI PUXIN EQUIP ENG CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHAANXI PUXIN EQUIP ENG CO LTD
Filing Date
2025-05-20
Publication Date
2026-04-24

AI Technical Summary

Technical Problem

Traditional valve components are easily clogged by dust and impurities in complex and variable working environments, affecting the working efficiency of the cylinder.

Method used

A cylinder bidirectional dustproof valve assembly was designed, which uses dustproof mesh one and dustproof mesh two to filter the gas, and uses a threaded tube and plug ring structure to facilitate disassembly and assembly, ensuring bidirectional gas flow and internal protection.

Benefits of technology

It effectively prevents dust and impurities from entering, maintains the cylinder's sealing and working efficiency, and simplifies the disassembly and assembly process of the device.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224161908U_ABST
    Figure CN224161908U_ABST
Patent Text Reader

Abstract

The utility model relates to the technical field of air valve assemblies, in particular to a bidirectional dustproof air valve assembly of an air cylinder, which comprises a connecting column mounted on the surface of an air valve body and further comprises a threaded pipe, a first dustproof net and a second dustproof net, the threaded pipe is in contact with a first dustproof net and a second dustproof net through sealing washers. The air valve has the advantages that the first dustproof net and the second dustproof net are arranged at the two ends of the air valve body, air can be filtered by the first dustproof net and the second dustproof net after flowing, meanwhile, the first dustproof net and the second dustproof net are convenient to disassemble and assemble through the threaded column and the inserting ring, the whole air valve can make the air flow in two directions, and the air valve is convenient to use. And meanwhile, the interior can be protected through dustproof measures.
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Description

Technical Field

[0001] This utility model relates to the field of air valve assembly technology, specifically to a two-way dustproof air valve assembly for a cylinder. Background Technology

[0002] Cylinders, as common actuators, are widely used in various automated equipment. However, in practical applications, cylinders often encounter the problem of dust or impurities intruding. These problems not only affect the sealing performance of the device but may also accelerate the wear of internal parts, thus requiring dustproof valve assemblies.

[0003] Currently, traditional valve assemblies are typically one-way valves or simple two-position two-way valves, which control airflow by changing the direction of flow. However, these structures are prone to blockage in complex and variable working environments, especially those with a lot of dust and impurities, leading to airflow obstruction and affecting cylinder efficiency. Utility Model Content

[0004] The purpose of this invention is to provide a two-way dustproof valve assembly for cylinders to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a cylinder bidirectional dustproof valve assembly, including a connecting column installed on the surface of the valve body, the cylinder bidirectional dustproof valve assembly including: a threaded tube, the two ends of the valve body are connected to dustproof mesh one and dustproof mesh two through insert rings, and the threaded tube contacts dustproof mesh one and dustproof mesh two through sealing gaskets.

[0006] Preferably, a connecting post is fixedly connected to the surface of the valve body, a protective disc is fixedly connected to the upper end of the inner wall of the connecting post, and connecting rings are fixedly connected to both ends of the surface of the valve body, with the connecting rings in close contact with one end of the threaded tube.

[0007] Preferably, slots are provided at both ends of the valve body, and both ends of the valve body surface are threaded to the inner wall of the threaded tube, with a plug ring inserted into the slot.

[0008] Preferably, one side of the dustproof net one is fixedly connected with a plug ring, one end of the threaded pipe is fixedly connected with a flange, and the inner wall of the threaded pipe is tightly contacted with a sealing gasket.

[0009] Preferably, a sealing column is fixedly connected to the inner arc surface of the protective disc, a connecting rod is rotatably connected to the inner wall of the sealing column, the upper end of the connecting rod passes through the sealing column and is fixedly connected to a rotating handle, and the lower end of the connecting rod passes through the surface of the valve body and is connected to a through valve through a sealing ring.

[0010] Preferably, a sealing ring is fixedly connected to the side of the valve, the sealing ring is fixedly connected to the connecting rod, and the side of the sealing ring is in close contact with the inner wall of the valve body.

[0011] Compared with the prior art, the beneficial effects of this utility model are: by setting dustproof net one and dustproof net two at both ends of the gas valve body, the gas will be filtered by the two when it flows. At the same time, the threaded column and the insert ring make dustproof net one and dustproof net two easy to disassemble and assemble. The whole device can allow the gas to flow in both directions, and can also protect the inside through dustproof measures. Attached Figure Description

[0012] Figure 1 This is a three-dimensional schematic diagram of the overall structure of this utility model;

[0013] Figure 2 This is a cross-sectional view of the overall structure of this utility model;

[0014] Figure 3 This is a cross-sectional view of the threaded pipe of this utility model;

[0015] Figure 4 This is a side view of the dustproof net of this utility model.

[0016] In the diagram: 1. Valve body; 2. Dustproof mesh one; 3. Dustproof mesh two; 4. Flange; 5. Threaded pipe; 6. Sealing gasket; 7. Insert ring; 8. Slot; 9. Connecting ring; 10. Through valve; 11. Rotary handle; 12. Connecting rod; 13. Protective disc; 14. Sealing column; 15. Connecting column; 16. Sealing ring. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this utility model clear and complete, the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of this utility model, and are merely used to explain the embodiments of this utility model. They are not intended to limit the embodiments of this utility model. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0018] Please see Figures 1-4This utility model provides a technical solution: a cylinder bidirectional dustproof valve assembly, including a connecting post 15 installed on the surface of the valve body 1. The connecting post 15 can be used to detect the airtightness of the valve body 1. The cylinder bidirectional dustproof valve assembly includes: a threaded tube 5. The connecting post 15 is fixedly connected to the surface of the valve body 1. The connecting post 15 facilitates the support of the connecting rod 12. A protective disc 13 is fixedly connected to the upper end of the inner wall of the connecting post 15. The protective disc 13 can seal the upper end of the connecting post 15, creating a sealed space inside. By detecting the gas content and pressure in the space, it can be detected whether the connection between the valve body 1 and the connecting post 15 is sealed. Both ends of the surface of the valve body 1 are fixedly connected to a connecting ring 9. The connecting ring 9 is in close contact with one end of the threaded tube 5. The connecting ring 9 can seal the connection between the two.

[0019] During the use of the device, the gas inside the connecting column 15 can be detected to test the overall airtightness.

[0020] Both ends of the valve body 1 are provided with slots 8, which facilitate the installation and removal of dustproof mesh 1 2 and dustproof mesh 2 3. Both ends of the surface of the valve body 1 are threadedly connected to the inner wall of the threaded pipe 5. Disassembly can be completed by rotating the threaded pipe 5. Inserted rings 7 are inserted into the slots 8. Inserted rings 7 are fixedly connected to one side of dustproof mesh 1 2 and dustproof mesh 2 3. One end of the threaded pipe 5 is fixedly connected to a flange 4. The flange 4 allows both ends of the device to be connected to other pipes, thereby achieving operational integrity. The inner wall of the threaded pipe 5 is tightly contacted with sealing gaskets 6. The sealing gaskets 6 can improve the airtightness of the connection between the threaded pipe 5 and other components. There are two sealing gaskets 6, which are tightly contacted with dustproof mesh 1 2 and dustproof mesh 2 3 respectively. When the threaded pipe 5 is connected to the valve body 1, the sealing gaskets 6 make the connection between the threaded pipe 5 and dustproof mesh 1 2 and dustproof mesh 2 3 even tighter, thereby achieving a seal.

[0021] During installation, dustproof net 1 2 and dustproof net 2 3 are inserted into slot 8 through insert ring 7. Then, the threaded tube 5 is rotated to connect with valve body 1. When one side of threaded tube 5 is rotated to contact the connecting ring 9, the two sides of sealing gasket 6 will be in close contact with threaded tube 5 and dustproof net 1 2 or dustproof net 2 3 respectively, and the inside is sealed.

[0022] A sealing post 14 is fixedly connected to the inner arc surface of the protective disc 13. A connecting rod 12 is rotatably connected to the inner wall of the sealing post 14. The sealing post 14 can seal the connecting rod 12 to prevent leakage at the connection. The upper end of the connecting rod 12 passes through the sealing post 14 and is fixedly connected to a handle 11. Rotating the handle 11 can control the rotation of the connecting rod 12. The lower end of the connecting rod 12 passes through the surface of the valve body 1 and is connected to a through valve 10 through a sealing ring 16. When the connecting rod 12 rotates, the through valve 10 and the sealing ring 16 will rotate accordingly. The sealing ring 16 is fixedly connected to the side of the through valve 10. The sealing ring 16 can seal the connection between the through valve 10 and the inner wall of the valve body 1. The sealing ring 16 is fixedly connected to the connecting rod 12. The side of the sealing ring 16 is in close contact with the inner wall of the valve body 1. When the sealing ring 16 is not in complete contact with the inner wall of the valve body 1, gas can flow inside the valve body 1.

[0023] During use, the flow state inside the valve body 1 can be adjusted by rotating the handle 11. When the handle 11 is rotated until the valve 10 is not in complete contact with the inside of the valve body 1, the flow is inside. When the valve 10 is in complete contact with the inner wall of the valve body 1, the flow is not inside the valve body 1.

[0024] In actual use, after verifying that the device is correct, first connect the dustproof net 2 and dustproof net 3 to both ends of the valve body 1 through the insertion ring 7. Then, rotate the threaded pipes 5 at both ends to complete the overall installation of the device, while maintaining internal sealing. Then, connect the entire device to other pipelines through the flanges 4 at both ends. After installation, check the airtightness. During use, the flow rate inside the valve body 1 can be changed at any time through the handle 11. At the same time, during this process, the dustproof net 2 and dustproof net 3 will filter the flowing air to prevent particles and dust from entering, thereby playing a role in dust prevention and protection.

[0025] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A two-way dustproof valve assembly for a cylinder, comprising a connecting column (15) installed on the surface of a valve body (1), characterized in that: The cylinder bidirectional dustproof valve assembly includes: a threaded tube (5), and dustproof net one (2) and dustproof net two (3) connected to both ends of the valve body (1) through insert rings (7). The threaded tube (5) contacts dustproof net one (2) and dustproof net two (3) through sealing gaskets (6).

2. A two-way dirt resistant valve train assembly for an air cylinder as defined in claim 1, wherein: A connecting column (15) is fixedly connected to the surface of the valve body (1). A protective disc (13) is fixedly connected to the upper end of the inner wall of the connecting column (15). A connecting ring (9) is fixedly connected to both ends of the surface of the valve body (1). The connecting ring (9) is in close contact with one end of the threaded pipe (5).

3. A two-way dirt resistant valve train assembly for an air cylinder as defined in claim 2 wherein: The valve body (1) has slots (8) at both ends. Both ends of the valve body (1) are threaded to the inner wall of the threaded tube (5). A plug ring (7) is inserted into the slot (8).

4. A two-way dirt resistant valve train assembly for an air cylinder as defined in claim 3 wherein: One side of the dustproof net one (2) and the dustproof net two (3) are fixedly connected with a plug ring (7), and a flange (4) is fixedly connected to one end of the threaded pipe (5). The inner wall of the threaded pipe (5) is tightly connected with a sealing gasket (6). There are two sealing gaskets (6), which are in close contact with the dustproof net one (2) and the dustproof net two (3) respectively.

5. A two-way dirt resistant valve train assembly for an air cylinder as defined in claim 4 wherein: The inner arc surface of the protective disc (13) is fixedly connected to a sealing column (14), and the inner wall of the sealing column (14) is rotatably connected to a connecting rod (12). The upper end of the connecting rod (12) passes through the sealing column (14) and is fixedly connected to a handle (11). The lower end of the connecting rod (12) passes through the surface of the valve body (1) and is connected to a through valve (10) through a sealing ring (16).

6. A two-way dirt resistant valve train assembly for an air cylinder as defined in claim 5, wherein: A sealing ring (16) is fixedly connected to the side of the valve (10). The sealing ring (16) is fixedly connected to the connecting rod (12). The side of the sealing ring (16) is in close contact with the inner wall of the valve body (1).