Self-sealing valve easy to disassemble

Abstract

The utility model relates to the technical field of air tightness detection, and particularly discloses an easy-to-disassemble self-sealing valve which comprises a sealing ring connected with the surface of a valve body, the easy-to-disassemble self-sealing valve comprises a connecting disc and a threaded cover, a barrel groove is formed in the inner wall of the valve body, the connecting disc is connected with the threaded cover through a spring, and the threaded cover is connected with the connecting disc through a hollow column. The connecting disc is connected with a sealing disc through a connecting rod; the beneficial effects of the utility model are that after the device is connected, the spring can generate thrust on the connecting disc and the threaded cover, so that the closed cavity is sealed, when the sealing disc slides down to the through groove during use, the closed cavity is communicated with the outside through the hollow column, so that detection can be realized, all parts in the valve body can be taken out only by rotating the threaded cover during disassembly, and the disassembly is convenient. The whole device is convenient to disassemble and assemble under the condition that normal use is kept, and meanwhile the cost can be reduced.

Description

Technical Field

[0001] This utility model relates to the field of airtightness testing technology, specifically to an easily detachable self-sealing valve. Background Technology

[0002] In the field of airtightness testing, for safety reasons, it is necessary to test the internal gas density. This requires installing a self-sealing valve at the testing point to maintain a sealed state when not testing, while allowing the testing head to be pushed into the testing point for testing when needed.

[0003] However, most self-sealing valves on the market today are integrally connected, making disassembly very inconvenient. This results in a high scrap rate for manufacturers, wasting a lot of manpower and time in production and increasing the company's costs. Utility Model Content

[0004] The purpose of this invention is to provide an easily detachable self-sealing valve to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an easily detachable self-sealing valve, comprising a sealing ring connected to the surface of the valve body, the easily detachable self-sealing valve comprising: a connecting disc and a threaded cover, a barrel groove being provided on the inner wall of the valve body, the connecting disc being connected to the threaded cover by a spring, the threaded cover being connected to the connecting disc by a hollow column, and the connecting disc being connected to a sealing disc by a connecting rod.

[0006] Preferably, the valve body has a detection chamber, a sealing chamber and a connecting chamber arranged sequentially from top to bottom inside. A sealing ring is fixedly connected to the lower surface of the valve body, and a threaded post is fixedly connected to the lower end of the sealing ring. The lower end of the threaded post is threadedly connected to the threaded cap surface.

[0007] Preferably, the inner wall of the valve body is in sealing contact with a sealing disc, the middle position of the lower end of the sealing disc is fixedly connected to a connecting rod, the other end of the connecting rod is fixedly connected to the middle position of the surface of the connecting disc, and four air holes are opened on the surface of the connecting disc.

[0008] Preferably, a groove is formed in the middle of the inner wall of the valve body, the diameter of which is larger than the diameter of the sealing disc. A sliding groove is formed in the inner wall of the valve body, and a limit block is fixedly connected to the arc surface of the sealing disc. The limit block is slidably connected to the sliding groove.

[0009] Preferably, four hollow columns are fixedly connected to the lower end of the connecting plate. The surface of the hollow columns has through holes, and the surface of the threaded cover has four air holes. The surface of the hollow columns is sleeved with the air holes of the threaded cover. A spring is fixedly connected to the lower end of the connecting plate. The other end of the spring is in close contact with the upper end of the threaded cover, and the spring is in a compressed state.

[0010] Preferably, in the valve body, the upper end of the sealing disc is a detection chamber, the lower side of the sealing disc and the upper side of the connecting disc are a closed chamber, the connecting disc and the threaded cover are a connecting chamber, and the through hole, hollow column and air hole are interconnected.

[0011] Compared with the prior art, the beneficial effects of this utility model are: when the device is connected, the spring will generate a thrust on the connecting plate and the threaded cover, thereby sealing the closed cavity. When in use, when the sealing plate slides down to the through groove, the closed cavity is connected to the outside through the hollow column, thus enabling detection. When disassembling, only the threaded cover needs to be rotated to remove all the internal components of the valve body. The device is easy to disassemble and assemble while maintaining normal use, and can also reduce costs. 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 bottom view of the inside of the valve body of this utility model;

[0015] Figure 4 This is a top view of the threaded cap of this utility model.

[0016] In the diagram: 1. Detection chamber; 2. Sealed chamber; 3. Connecting chamber; 4. Valve body; 5. Threaded column; 6. Sealing ring; 7. Sealing disc; 8. Connecting rod; 9. Connecting disc; 10. Air hole; 11. Threaded cap; 12. Spring; 13. Hollow column; 14. Through hole; 15. Slide groove; 16. Barrel groove; 17. Limiting block. 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: an easily detachable self-sealing valve, including a sealing ring 6 connected to the surface of the valve body 4. The easily detachable self-sealing valve includes a connecting plate 9 and a threaded cover 11. The connecting plate 9 is the main support structure, and the connection plate 9 facilitates the control of the internal flow of the valve body. The valve body 4 has a detection chamber 1, a sealing chamber 2, and a connecting chamber 3 arranged sequentially from top to bottom. During use, the detection chamber 1 can be connected to the meter head of a test gauge. When not in use, the sealing chamber 2 and the connecting chamber 3 can seal the inside of the valve body 4, thereby preventing leakage at the connection between the threaded cover 11 and the pipeline. The sealing ring 6 is fixedly connected to the lower surface of the valve body 4. The sealing ring 6 can play a sealing role at the threaded post 5. The lower end of the sealing ring 6 is fixedly connected to the threaded post 5. The lower end of the threaded post 5 is threadedly connected to the threaded surface of the threaded cover 11. The threaded cover 11 provides a support component for the spring 12.

[0019] In use, the valve body 4 is connected to the pipeline to be tested through the threaded post 5. At this time, the inside of the valve body 4 is sealed. Then, the test head is connected to the test chamber 1. At this time, the inside of the valve body 4, the test chamber 1 and the pipeline are interconnected, so that the test can be performed.

[0020] The inner wall of the valve body 4 is sealed with a sealing disc 7. The middle position of the lower end of the sealing disc 7 is fixedly connected to the connecting rod 8. The lower end of the detection chamber 1 can be sealed by the sealing disc 7. The other end of the connecting rod 8 is fixedly connected to the middle position of the surface of the connecting disc 9. When the sealing disc 7 moves, the connecting rod 8 will move accordingly. Four air holes 10 are opened on the surface of the connecting disc 9 to facilitate the flow of gas and other media. A barrel groove 16 is opened in the middle position of the inner wall of the valve body 4. The diameter of the barrel groove 16 is larger than that of the sealing disc 7. When the sealing disc 7 moves to the barrel groove 16, the sealing chamber 2 and the detection chamber 1 are interconnected. A sliding groove 15 is opened on the inner wall of the valve body 4. A limiting block 17 is fixedly connected to the arc surface of the sealing disc 7. The limiting block 17 is slidably connected to the sliding groove 15. The sliding groove 15 and the limiting block 17 can guide the sliding of the sealing disc 7 to prevent it from rotating or tilting.

[0021] After the device is connected, during the installation of the meter head, the sealing disc 7 will gradually slide down, and finally the sealed cavity 2 and the connecting cavity 3 will be connected through the barrel groove 16.

[0022] Four hollow pillars 13 are fixedly connected to the lower end of the connecting plate 9. Through holes 14 are formed on the surface of each hollow pillar 13, allowing the inner and outer parts of the pillars to pass through. Four air holes 10 are formed on the surface of the threaded cap 11. The surface of the hollow pillars 13 fits into the air holes 10 of the threaded cap 11, preventing the hollow pillars 13 from shifting during sliding. A spring 12 is fixedly connected to the lower end of the connecting plate 9. The other end of the spring 12 is in close contact with the upper end of the threaded cap 11. The spring 12 is in a compressed state; when not in use, the spring force allows the... The connecting plate 9 is away from the threaded cover 11, so that the lower end of the hollow column 13 is in sealed contact with the threaded cover 11. In the valve body 4, the upper end of the sealing plate 7 is the detection chamber 1, and the lower side of the sealing plate 7 and the upper side of the connecting plate 9 are the closed chamber 2. When the hollow column 13 slides down, the inside of the pipeline to be tested can be connected to the connecting chamber 3 and the closed chamber 2 through the through hole 14. The connecting plate 9 and the threaded cover 11 are the connecting chamber 3. The through hole 14, the hollow column 13 and the air hole 10 are interconnected. The position of the hollow column 13 can be used to adjust the connection between the valve body 4 and the inside of the pipeline.

[0023] When the connecting rod 8 slides down, the connecting plate 9 will drive the hollow column 13 to slide down. At this time, the through hole 14 on the surface of the hollow column 13 is connected to the inside of the pipe, so that gas and other substances flow from the pipe into the hollow column 13 through the through hole 14, and then flow out from the air hole 10 of the connecting plate 9. At this time, the detection chamber 1, the sealing chamber 2 and the connecting chamber 3 are interconnected and the pressure is balanced. The lower end of the slide groove 15 can penetrate the valve body 4, which facilitates disassembly.

[0024] In actual use, after connecting the devices in sequence, install the meter head. At this time, the sealing disc 7 drives the connecting disc 9 and the hollow column 13 to move via the connecting rod 8. Then, through the through hole 14 and the air hole 10, the air pressure inside the valve body 4 is kept consistent, thus enabling detection. When the valve body 4 is damaged and needs to be disassembled, rotate and remove the threaded cover 11. Then, by pulling the threaded cover 11 downward, the components inside the valve body 4 slide along the slide groove 15 via the limit block 17. Thus, all parts can be removed, making the whole unit easy to disassemble.

[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 self-sealing valve of the easily removable type comprising a sealing ring (6) surface connected to the valve body (4), characterized in that: The detachable self-sealing valve comprises a connecting disc (9) and a threaded cover (11), a barrel groove (16) is formed in the inner wall of the valve body (4), the connecting disc (9) is connected with the threaded cover (11) through a spring (12), the threaded cover (11) is connected with the connecting disc (9) through a hollow column (13), and the connecting disc (9) is connected with a sealing disc (7) through a connecting rod (8).

2. A self-sealing valve according to claim 1, wherein: The inside of the valve body (4) is sequentially provided with a detection cavity (1), a closed cavity (2) and a connecting cavity (3) from top to bottom, the lower surface of the valve body (4) is fixedly connected with a sealing ring (6), the lower end of the sealing ring (6) is fixedly connected with a threaded column (5), and the lower end of the threaded column (5) is threadedly connected with the surface of the threaded cover (11).

3. A self-sealing valve according to claim 2, wherein: The inner wall of the valve body (4) is in sealing contact with the sealing disc (7), the lower end of the sealing disc (7) is fixedly connected with the connecting rod (8), the other end of the connecting rod (8) is fixedly connected with the middle position of the surface of the connecting disc (9), and the surface of the connecting disc (9) is provided with four air holes (10).

4. A self-sealing valve according to claim 3, wherein: The middle position of the inner wall of the valve body (4) is provided with a barrel groove (16), the diameter of the barrel groove (16) is greater than that of the sealing disc (7), the inner wall of the valve body (4) is provided with a sliding groove (15), and the arc surface of the sealing disc (7) is fixedly connected with a limiting block (17) which is in sliding connection with the sliding groove (15).

5. A self-sealing valve according to claim 4, wherein: The lower end of the connecting disc (9) is fixedly connected with four hollow columns (13), the surface of the hollow column (13) is provided with a through hole (14), the surface of the threaded cover (11) is provided with four air holes (10), the surface of the hollow column (13) is sleeved with the air holes (10) of the threaded cover (11), the lower end of the connecting disc (9) is fixedly connected with a spring (12), the other end of the spring (12) is in close contact with the upper end of the threaded cover (11), and the spring (12) is in a compressed state.

6. A self-sealing valve according to claim 5, wherein: In the valve body (4), the upper end of the sealing disc (7) is the detection cavity (1), the lower side of the sealing disc (7) and the upper side of the connecting disc (9) are the closed cavity (2), the connecting disc (9) and the threaded cover (11) are the connecting cavity (3), the through hole (14), the hollow column (13) and the air hole (10) are mutually penetrated.

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