Buried valve box of gas self-closing valve

Abstract

The utility model relates to the technical field of gas pipeline switches, and discloses a gas self-closing valve concealed valve box which comprises a valve box body, a first pipeline universal joint is fixedly installed on the front face of the valve box body, and an outer threaded hole is formed in the surface of the first pipeline universal joint. And the surface of the external threaded hole is in threaded connection with a limiting threaded ring. According to the utility model, the first pipeline universal joint, the limiting threaded ring and the sealing gasket are arranged in a matched manner, so that an air pipe is inserted into the first pipeline universal joint during use, the sealing gasket is used for sealing to prevent air leakage, and the first pipeline universal joint is shrunk by rotating the limiting threaded ring; and through cooperative arrangement of an exhaust pipe and a second inner threaded hole, the air pipe is inserted into the exhaust pipe during use, and then threaded connection is performed through the second inner threaded hole, so that the air pipe is secondarily fixed, and the practicability of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of gas pipeline switches, in particular to a concealed valve box for a gas self-closing valve. Background Art

[0002] Gas self-closing valves are usually installed on low-pressure gas system pipelines. When the gas supply pressure in the pipeline is under-pressure or over-pressure, the device can automatically close without electricity or other external power. When the gas self-closing valve is installed in the wall together with the gas pipe, the gas self-closing valve is generally placed in a valve box and then buried in the wall. The valve box is used to protect the gas self-closing valve.

[0003] In the prior art, there is a concealed valve box for a gas self-closing valve, such as a publication number CN219841134U, which includes a box body, a self-closing valve body and a support member. Openings for the gas pipe to pass through are provided on both sides of the box body. A mounting seat for installing the self-closing valve body is provided in the box body. A locking structure for fixing the self-closing valve body is provided between the mounting seat and the self-closing valve body. At least one first through hole is provided on the support member. The self-closing valve body includes an automatic closing valve and a pull-up switch installed on the automatic closing valve, one end of the pull-up switch passes through one of the first through holes, and a mounting seat is provided in the box body. When installing the self-closing valve body, there is no need to install an additional mounting frame, thereby improving construction efficiency; at the same time, the pull-up switch on the automatic closing valve passes through one of the first through holes, so that the valve box does not need to reserve space for a built-in pull-up switch, so that the valve box can be made smaller in size, saving production materials and increasing economic benefits.

[0004] The above patent proposes that the existing gas self-closing valve concealed valve box usually does not need to reserve space for a built-in pull switch in the valve box, so that the valve box can be made smaller in size, etc. However, during use, a simple single connection to the gas pipe results in an unstable connection, which is prone to leakage, etc., which reduces the practicality of the device, and is inconvenient to tighten and fix the self-closing valve body placed inside the valve box, resulting in inconvenience, time-consuming and labor-intensive disassembly by workers during maintenance. Therefore, the utility model provides a gas self-closing valve concealed valve box. Utility Model Content

[0005] 1. Technical issues to be solved

[0006] In view of the deficiencies in the prior art, the utility model provides a concealed valve box for a gas self-closing valve, which solves the problems raised in the above-mentioned background technology.

[0007] (II) Technical solution

[0008] To achieve the above purpose, the utility model provides the following technical solutions: a concealed valve box for a gas self-closing valve, comprising a valve box body, a first pipe universal joint is fixedly installed on the front of the valve box body, an external threaded hole is provided on the surface of the first pipe universal joint, a limiting thread ring is threadedly connected to the surface of the external threaded hole, and a sealing gasket is fixedly installed inside the first pipe universal joint;

[0009] A first groove is provided on one side of the valve box body, a round hole is provided inside the first groove, a placement rod is fitted and connected inside the round hole, a slot is provided on the front side of the placement rod, and a T-shaped slide groove is provided on the inner wall of the slot.

[0010] Preferably, the interior of the T-shaped slide groove is slidably connected to a moving rod via a T-shaped slider, and a rotating disk is fixedly mounted on one end of the moving rod.

[0011] Preferably, a threaded rod is fixedly mounted on one end of the placement rod, and a limiting ring is provided on the surface of the threaded rod, and an adjusting rod is threadedly connected to one end of the threaded rod through a first internal threaded hole.

[0012] Preferably, a disc is fixedly mounted on one end of the adjusting rod, a clamping plate is fixedly mounted on one end of the disc, and an anti-slip pad is fixedly mounted on the surface of the clamping plate.

[0013] Preferably, a second groove is formed on one side of the first groove, a first threaded hole is formed inside the second groove, and a fixing bolt is threadedly connected to the inside of the first threaded hole.

[0014] Preferably, a cover plate is threadedly connected to the surface of the fixing bolt through a second threaded hole, a second pipe universal joint is fixedly installed on the back of the valve box body, and a self-closing valve body is placed inside the valve box body.

[0015] Preferably, an exhaust pipe is fixedly mounted on the front side of the self-closing valve body, a sealing ring is fixedly mounted on the inner side wall of the exhaust pipe, and a second internal threaded hole is formed on the inner side wall of the sealing ring.

[0016] Preferably, a manual ball valve is provided on the upper surface of the self-closing valve body, and the manual ball valve is convenient for controlling the flow of gas, and an automatic closing valve body is fixedly installed on one side of the manual ball valve.

[0017] (III) Beneficial effects

[0018] Compared with the prior art, the utility model provides a concealed valve box for a gas self-closing valve, which has the following beneficial effects:

[0019] 1. The utility model is provided with a first pipe universal joint, a limiting thread ring and a sealing gasket. When in use, the trachea is inserted into the first pipe universal joint, and then the sealing gasket is used to seal to prevent air leakage. Then, the limiting thread ring is rotated to shrink the first pipe universal joint, thereby playing a role in preliminarily fixing the trachea.

[0020] 2. The utility model cooperates with the exhaust pipe and the second internal threaded hole. When in use, the air pipe is inserted into the exhaust pipe and then threadedly connected through the second internal threaded hole, thereby playing a role of secondary fixation of the air pipe, thereby improving the practicality of the device.

[0021] 3. The utility model is configured by the coordination of a rotating disk, a threaded rod, an adjusting rod, a disc and a clamping plate. When in use, a person manually rotates the rotating disk, and then the rotating disk drives the threaded rod to rotate, and then the threaded rod drives the adjusting rod to move its position, and the adjusting rod drives the disc and the clamping plate to move, thereby playing a role in accelerating the disassembly of the self-closing valve body. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the structure of the utility model;

[0023] Figure 2 This is a structural breakdown diagram of the utility model;

[0024] Figure 3 This is a schematic diagram of the connection structure between the first pipe universal joint and the sealing gasket of the utility model;

[0025] Figure 4 This is a schematic diagram of the connection structure between the threaded rod and the anti-slip pad of the utility model;

[0026] Figure 5 It is a schematic diagram of the connection structure between the placement rod and the rotating disk of the utility model.

[0027] In the figure: 1. valve box body; 2. first pipe universal joint; 3. external threaded hole; 4. limiting threaded ring; 5. sealing gasket; 6. first groove; 7. round hole; 8. placement rod; 9. slot; 10. T-type slide groove; 11. T-type slider; 12. moving rod; 13. rotating disk; 14. threaded rod; 15. first internal threaded hole; 16. adjusting rod; 17. disc; 18. clamping plate; 19. anti-skid pad; 20. second groove; 21. first threaded hole; 22. fixing bolt; 23. second threaded hole; 24. cover plate; 25. second pipe universal joint; 26. self-closing valve body; 27. exhaust pipe; 28. sealing ring; 29. ​​second internal threaded hole; 30. manual ball valve; 31. automatic closing valve body. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] Example 1

[0030] See also Figure 1-3 The utility model provides a technical solution: a concealed valve box for a gas self-closing valve, comprising a valve box body 1, a first pipeline universal joint 2 is fixedly installed on the front of the valve box body 1, an external threaded hole 3 is arranged on the surface of the first pipeline universal joint 2, a limiting threaded ring 4 is threadedly connected to the surface of the external threaded hole 3, a sealing gasket 5 is fixedly installed inside the first pipeline universal joint 2, a first groove 6 is opened on one side of the valve box body 1, a round hole 7 is opened inside the first groove 6, a placement rod 8 is fitted and connected inside the round hole 7, a slot 9 is opened on the front of the placement rod 8, and a slot 9 is fixed on the inside of the slot 9. A T-shaped slide groove 10 is provided on the inner wall, and a moving rod 12 is slidably connected to the inside of the T-shaped slide groove 10 through a T-shaped slider 11, a rotating disk 13 is fixedly installed on one end of the moving rod 12, a threaded rod 14 is fixedly installed on one end of the placement rod 8, and a limiting ring is provided on the surface of the threaded rod, one end of the threaded rod 14 is threadedly connected to an adjusting rod 16 through a first internal threaded hole 15, a disc 17 is fixedly installed on one end of the adjusting rod 16, a splint 18 is fixedly installed on one end of the disc 17, and an anti-slip pad 19 is fixedly installed on the surface of the splint 18, and a second groove 20 is provided on one side of the first groove 6.

[0031] In this embodiment, through the coordinated arrangement of the first pipe universal joint 2, the limiting threaded ring 4 and the sealing gasket 5, the trachea is inserted into the first pipe universal joint 2 during use, and then the sealing gasket 5 is used to seal and prevent air leakage, and then the limiting threaded ring 5 is rotated to shrink the first pipe universal joint 2, thereby playing a role in preliminarily fixing the trachea. Through the coordinated arrangement of the rotating disk 13, the threaded rod 14, the adjusting rod 16, the disc 17 and the clamping plate 18, when in use, a person manually rotates the rotating disk 13 to rotate, and then the rotating disk 13 drives the threaded rod 14 to rotate, and then the threaded rod 14 rotates to drive The movable adjusting rod 16 is moved in position, and the adjusting rod 16 drives the disc 17 and the clamping plate 18 to move, thereby playing a role in accelerating the disassembly of the self-closing valve body 26. Through the matching arrangement of the placement rod 8, the T-shaped slide groove 10, the T-shaped slider 11, the rotating disk 13 and the moving rod 12, the user pulls the rotating disk 13, and then slides in the T-shaped slide groove 10 through the T-shaped slider 11, and then the moving rod 12 is pulled out from the placement rod 8 by sliding, thereby playing a role in facilitating the retraction of the rotating disk 13. Through the arrangement of the anti-slip pad 19, the friction with the self-closing valve body 26 is increased.

[0032] Example 2

[0033] like Figure 4-5 As shown, based on the same concept as the above-mentioned embodiment 1, this embodiment further proposes that a first threaded hole 21 is opened inside the second groove 20, and a fixing bolt 22 is threadedly connected to the inside of the first threaded hole 21, and a cover plate 24 is threadedly connected to the surface of the fixing bolt 22 through a second threaded hole 23, and a second pipe universal joint 25 is fixedly installed on the back of the valve box body 1, and a self-closing valve body 26 is placed inside the valve box body 1, and an exhaust pipe 27 is fixedly installed on the front of the self-closing valve body 26, and a sealing ring 28 is fixedly installed on the inner side wall of the exhaust pipe 27, and a second internal threaded hole 29 is opened on the inner side wall of the sealing ring 28, and a manual ball valve 30 is arranged on the upper surface of the self-closing valve body 26, and the manual ball valve 30 is convenient for controlling the flow of gas, and an automatic closing valve body 31 is fixedly installed on one side of the manual ball valve 30.

[0034] In this embodiment, by the matching arrangement of the exhaust pipe 27 and the second internal threaded hole 29, the air pipe is inserted into the exhaust pipe 27 during use, and then threadedly connected through the second internal threaded hole 29, thereby achieving a secondary fixation of the air pipe, thereby improving the practicability of the device.

[0035] To sum up, the gas self-closing valve is a concealed valve box. When in use, the air pipe is inserted into the first pipe universal joint 2, and then sealed with the sealing gasket 5 to prevent air leakage, and then the first pipe universal joint 2 is contracted by rotating the limiting threaded ring 5 to preliminarily fix the air pipe. When in use, the air pipe is inserted into the exhaust pipe 27, and then threadedly connected through the second internal threaded hole 29 to fix the air pipe for a second time. When in use, a person manually rotates the rotating disk 13 to rotate, and then the rotating disk 13 drives the threaded rod 14 to rotate, and then the threaded rod 14 drives the adjusting rod 16 to move its position, and the adjusting rod 16 drives the disc 17 and the clamping plate 18 to move, and the self-closing valve body 26 is accelerated to be disassembled.

[0036] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A concealed valve box for a gas self-closing valve, comprising a valve box body (1), characterized in that: A first pipe universal joint (2) is fixedly mounted on the front of the valve box body (1); an external threaded hole (3) is provided on the surface of the first pipe universal joint (2); a limiting threaded ring (4) is threadedly connected to the surface of the external threaded hole (3); and a sealing gasket (5) is fixedly mounted inside the first pipe universal joint (2); A first groove (6) is provided on one side of the valve box body (1), a round hole (7) is provided inside the first groove (6), a placement rod (8) is fitted and connected inside the round hole (7), a slot (9) is provided on the front side of the placement rod (8), and a T-shaped slide groove (10) is provided on the inner side wall of the slot (9).

2. A gas self-closing valve concealed valve box according to claim 1, characterized in that: The interior of the T-shaped slide groove (10) is slidably connected to a moving rod (12) via a T-shaped sliding block (11), and a rotating disk (13) is fixedly mounted on one end of the moving rod (12).

3. A concealed valve box for a gas self-closing valve according to claim 1, characterized in that: A threaded rod (14) is fixedly mounted on one end of the placement rod (8), and a limiting ring is provided on the surface of the threaded rod. An adjusting rod (16) is threadedly connected to one end of the threaded rod (14) through a first internal threaded hole (15).

4. A concealed valve box for a gas self-closing valve according to claim 3, characterized in that: A disc (17) is fixedly mounted on one end of the adjusting rod (16), a clamping plate (18) is fixedly mounted on one end of the clamping plate (17), and an anti-slip pad (19) is fixedly mounted on the surface of the clamping plate (18).

5. The gas self-closing valve concealed valve box according to claim 1, characterized in that: A second groove (20) is provided on one side of the first groove (6), a first threaded hole (21) is provided inside the second groove (20), and a fixing bolt (22) is threadedly connected inside the first threaded hole (21).

6. A concealed valve box for a gas self-closing valve according to claim 5, characterized in that: The surface of the fixing bolt (22) is threadedly connected to a cover plate (24) via a second threaded hole (23); a second pipe universal joint (25) is fixedly mounted on the back of the valve box body (1); and a self-closing valve body (26) is placed inside the valve box body (1).

7. A concealed valve box for a gas self-closing valve according to claim 6, characterized in that: An exhaust pipe (27) is fixedly mounted on the front of the self-closing valve body (26), a sealing ring (28) is fixedly mounted on the inner wall of the exhaust pipe (27), and a second internal threaded hole (29) is formed on the inner wall of the sealing ring (28).

8. The concealed valve box for a gas self-closing valve according to claim 6 is characterized by: A manual ball valve (30) is provided on the upper surface of the self-closing valve body (26), and the manual ball valve (30) is convenient for controlling the flow of gas. An automatic closing valve body (31) is fixedly installed on one side of the manual ball valve (30).

Images