Leak-proof stop valve

Abstract

The utility model discloses an anti-leakage stop valve which comprises a pipe body. A cut-off assembly is arranged in the pipe body, a reset assembly is arranged at one end of the cut-off assembly, and a pressure relief assembly is arranged at the other end of the cut-off The pressure relief assembly comprises a ventilation disc, one end of the ventilation disc is symmetrically and fixedly connected with a communication pipe, a ventilation groove is formed in the communication pipe, the top end of the ventilation disc is fixedly connected with an exhaust pipe, and the exhaust pipe penetrates through the pipe body. After the pipe body is automatically closed, the discharging end of the pipe body is subjected to pressure relief, materials in the discharging end of the pipe body are conveniently emptied, and the situation that the materials are deposited in the pipe body, and the use efficiency of the pipe body is affected is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of stop valves, in particular to an anti-leakage stop valve. Background Art

[0002] A stop valve is a mechanical device that blocks the fluid being transported through a pipeline. The stop valve can control the delivery of the fluid quickly and conveniently, and is an indispensable mechanical device in modern industrial production and life.

[0003] For example, the utility model patent with publication number CN219774815U, titled "A Leak-Proof Stop Valve", and authorization announcement date 2023.09.29, includes a stop valve body, valve tubes are provided at both ends of the stop valve body, a cover shell is detachably connected to the upper end of the stop valve body, a supporting block is provided at one end of the upper surface of the cover shell, a valve stem is inserted through the inner center end of the upper surface of the supporting block, a turntable is fixedly connected to one end of the upper surface of the valve stem, and an anti-leakage component is provided at one end of the stop valve body. The utility model has an anti-leakage component provided at one end of the stop valve body, so that the anti-leakage component can be effectively sealed, and the inside of the stop valve body is sealed and blocked, so that it can be completely and effectively sealed when closed and not in use, and no leakage will occur. The cover shell connected to the upper end of the stop valve body is disassembled, which facilitates the disassembly and maintenance of the stop valve body.

[0004] The disadvantage of the prior art is that after the shut-off valve is closed, the pressure of the pipe body cannot be released, resulting in the inability to release the residual material in the pipe body, causing the material to be deposited in the pipe body, affecting the efficiency of the pipe body. Utility Model Content

[0005] The utility model aims to provide an anti-leakage stop valve, which is connected with a connecting pipe through a stop assembly, so that a closed pipe body connects an exhaust pipe with the outside through the connecting pipe, so that after the pipe body is automatically closed, pressure is released at the discharge end of the pipe body, which is convenient for emptying the material in the discharge end of the pipe body and avoiding the deposition of the material in the pipe body, which affects the use efficiency of the pipe body.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions: an anti-leakage stop valve, comprising a pipe body;

[0007] A cut-off assembly is provided in the tube body, a reset assembly is provided at one end of the cut-off assembly, and a pressure relief assembly is provided at the other end of the cut-off assembly;

[0008] The pressure relief assembly includes a vent plate, one end of which is symmetrically fixedly connected to a connecting pipe, a vent groove is provided in the connecting pipe, the top of the vent plate is fixedly connected to an exhaust pipe, and the exhaust pipe runs through the pipe body;

[0009] As a further description of the above technical solution:

[0010] A connecting groove is provided inside the tube body, a collar is fixedly connected inside the connecting groove, and a cut-off component is slidably provided inside the collar.

[0011] As a further description of the above technical solution:

[0012] A feed groove is provided at one end of the tube body, and a discharge groove is provided at the other end of the tube body, and the discharge groove is connected with the feed groove through a connecting groove.

[0013] As a further description of the above technical solution:

[0014] The cut-off assembly comprises a movable plug, an inner cavity groove is provided in the movable plug, and a supporting spring is provided in the inner cavity groove.

[0015] As a further description of the above technical solution:

[0016] An air hole is provided at one end of the movable plug close to the pressure relief component, and the air hole is communicated with the ventilation groove.

[0017] As a further description of the above technical solution:

[0018] The reset assembly comprises a fixed column, and the fixed column is fixed on the tube body, one end of the fixed column is fixedly connected to a connecting seat, and one end of the connecting seat is fixedly connected to a guide column.

[0019] As a further description of the above technical solution:

[0020] The guide column passes through the movable plug, and one end of the guide column away from the connecting seat is fixedly connected to the supporting spring.

[0021] The utility model provides an anti-leakage stop valve, which has the following beneficial effects:

[0022] In the utility model, the cut-off component is connected with the connecting pipe, so that the closed tube body connects the exhaust pipe with the outside through the connecting pipe, so that after the tube body is automatically closed, the pressure is released at the discharge end of the tube body, which is convenient for emptying the material in the discharge end of the tube body and avoiding the deposition of the material in the tube body, which affects the use efficiency of the tube body. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a structural schematic diagram of an anti-leakage stop valve proposed by the utility model;

[0024] Figure 2 This is a schematic diagram of the structure of the tube body in the utility model;

[0025] Figure 3 It is a structural schematic diagram of the cut-off component in the utility model;

[0026] Figure 4 It is a structural schematic diagram of the pressure relief component in the utility model;

[0027] Figure 5 For the utility model Figure 3 Schematic diagram of the local structure at point A.

[0028] Legend:

[0029] 1. Tube body; 11. Ring; 12. Connecting groove; 13. Feeding groove; 14. Discharging groove; 2. Shut-off assembly; 21. Movable plug; 22. Inner cavity groove; 23. Support spring; 24. Air hole; 3. Reset assembly; 31. Fixed column; 32. Connecting seat; 33. Guide column; 4. Pressure relief assembly; 41. Vent disc; 42. Connecting pipe; 43. Vent groove; 44. Exhaust pipe. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0031] Reference Figure 1-5 , a leakage-proof stop valve, comprising a pipe body 1; a stop assembly 2 is arranged in the pipe body 1, a reset assembly 3 is arranged at one end of the stop assembly 2, and a pressure relief assembly 4 is arranged at the other end of the stop assembly 2; the pressure relief assembly 4 comprises a vent disc 41, a connecting pipe 42 is symmetrically fixedly connected to one end of the vent disc 41, a vent groove 43 is provided in the connecting pipe 42, an exhaust pipe 44 is fixedly connected to the top of the vent disc 41, and the exhaust pipe 44 runs through the pipe body 1;

[0032] Specifically, the tube body 1 is a cylindrical frame structure, and a cut-off component 2 is movably provided in the tube body 1. The cut-off component 2 moves toward the pressure relief component 4 during the process of pressurizing the feed end of the tube body 1, so that the tube body 1 is in a connected state. When the pressure at the feed end of one end of the tube body 1 disappears, the reset component 3 resets the cut-off component 2, so that the connecting groove 12 of the tube body 1 is closed. The vent disc 41 in the pressure relief component 4 is adapted to the cut-off component 2 through the connecting pipe 42. When the cut-off component 2 opens the tube body 1, the connecting pipe 42 is closed. When the cut-off component 2 closes the tube body 1, the cut-off component 2 is connected with the connecting pipe 42, so that the closed tube body 1 connects the exhaust pipe 44 with the outside through the connecting pipe 42, so that after the tube body 1 is automatically closed, the pressure is relieved at the discharge end of the tube body 1, which is convenient for emptying the material in the discharge end of the tube body 1, and avoids the deposition of the material in the tube body 1, which affects the use efficiency of the tube body 1.

[0033] A connecting groove 12 is provided on the inner side of the tube body 1, a collar 11 is fixedly connected in the connecting groove 12, and a cut-off assembly 2 is slidably provided on the inner side of the collar 11; a feed groove 13 is provided on one end of the tube body 1, a discharge groove 14 is provided on the other end of the tube body 1, and the discharge groove 14 is connected with the feed groove 13 through the connecting groove 12; the cut-off assembly 2 includes a movable plug 21, an inner cavity groove 22 is provided in the movable plug 21, and a support spring 23 is provided in the inner cavity groove 22; an air hole 24 is provided at one end of the movable plug 21 close to the pressure relief assembly 4, and the air hole 24 is connected with the ventilation groove 43; the reset assembly 3 includes a fixed column 31, and the fixed column 31 is fixed on the tube body 1, one end of the fixed column 31 is fixedly connected with a connecting seat 32, and one end of the connecting seat 32 is fixedly connected with a guide column 33; the guide column 33 passes through the movable plug 21, and the end of the guide column 33 away from the connecting seat 32 is fixedly connected to the support spring 23;

[0034] Specifically, the movable plug 21 is slidably arranged in the ring 11 fixed in the tube body 1. When the feed groove 13 at one end of the tube body 1 is pressurized with the material, the support spring 23 in the inner cavity groove 22 opened by the movable plug 21 is subjected to force and stores energy, so that after the material pressure is reduced, the movable plug 21 is reset under the action of the support spring 23, thereby realizing automatic opening and closing of the device and improving the convenience of using the device. The device has a simple structure and is flexible to use, and is worthy of wide promotion.

[0035] Working principle: during the process of pressurizing the feed end of the tube body 1, the cut-off component 2 moves toward the pressure relief component 4, so that the tube body 1 is in a connected state. When the pressure at the feed end of one end of the tube body 1 disappears, the reset component 3 resets the cut-off component 2, so that the connecting groove 12 of the tube body 1 is closed. The vent plate 41 in the pressure relief component 4 is adapted to the cut-off component 2 through the connecting pipe 42. When the cut-off component 2 opens the tube body 1, the connecting pipe 42 is closed. When the cut-off component 2 closes the tube body 1, the cut-off component 2 is connected with the connecting pipe 42, so that the closed tube body 1 connects the exhaust pipe 44 with the outside through the connecting pipe 42. After the tube body 1 is automatically closed, the pressure is relieved at the discharge end of the tube body 1 to facilitate the discharge of the material in the discharge end of the tube body 1.

[0036] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A leak-proof stop valve, characterized in that: Includes tube body(1); A cut-off assembly (2) is provided in the tube body (1), a reset assembly (3) is provided at one end of the cut-off assembly (2), and a pressure relief assembly (4) is provided at the other end of the cut-off assembly (2); The pressure relief assembly (4) comprises a vent plate (41), one end of the vent plate (41) is symmetrically fixedly connected to a connecting pipe (42), a vent groove (43) is provided in the connecting pipe (42), and the top end of the vent plate (41) is fixedly connected to an exhaust pipe (44), and the exhaust pipe (44) passes through the pipe body (1).

2. The anti-leakage stop valve according to claim 1, characterized in that: A connecting groove (12) is provided on the inner side of the tube body (1), a collar (11) is fixedly connected in the connecting groove (12), and a cut-off assembly (2) is slidably provided on the inner side of the collar (11).

3. The anti-leakage stop valve according to claim 1, characterized in that: A feed groove (13) is provided at one end of the tube body (1), and a discharge groove (14) is provided at the other end of the tube body (1), and the discharge groove (14) is connected to the feed groove (13) via a connecting groove (12).

4. The anti-leakage stop valve according to claim 1, characterized in that: The cut-off assembly (2) comprises a movable plug (21), an inner cavity groove (22) is provided in the movable plug (21), and a supporting spring (23) is provided in the inner cavity groove (22).

5. The anti-leakage stop valve according to claim 4, characterized in that: An air hole (24) is provided at one end of the movable plug (21) close to the pressure relief assembly (4), and the air hole (24) is communicated with the ventilation groove (43).

6. The anti-leakage stop valve according to claim 1, characterized in that: The resetting assembly (3) comprises a fixing column (31), and the fixing column (31) is fixed on the tube body (1), one end of the fixing column (31) is fixedly connected to a connecting seat (32), and one end of the connecting seat (32) is fixedly connected to a guide column (33).

7. The anti-leakage stop valve according to claim 6, characterized in that: The guide column (33) passes through the movable plug (21), and one end of the guide column (33) away from the connecting seat (32) is fixedly connected to the supporting spring (23).

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