Off-line leak detection device for vacuum pneumatic center line-type butterfly valve

Abstract

The utility model relates to the technical field of detection, and discloses a vacuum pneumatic center line-type butterfly valve off-line leak detection device which comprises a base, the inner wall of the base is fixedly connected with a motor, the output end of the motor is fixedly connected with a connecting column, the upper surface of the connecting column is fixedly connected with a rotating disc, and the outer wall of the rotating disc is rotatably connected with a concave plate. A fixed column is slidably connected to the outer wall of the rotating disc, a clamping plate is fixedly connected to the outer wall of the fixed column, sponge is fixedly connected to the inner wall of the clamping plate, and a supporting assembly is arranged on the upper surface of the base. According to the butterfly valve, the motor works to drive the connecting column to rotate, then the fixing column can be driven to slide in the special-shaped groove formed in the rotary disc, then the clamping plate can be driven to slide on the inner wall of the concave plate, and the valve body and the valve column can be wrapped by sliding of the clamping plate; the effect of detecting the water leakage of the butterfly valve can be achieved by observing whether water spots exist on the sponge or not.

Description

Technical Field

[0001] The utility model relates to the field of detection technology, in particular to an offline leakage detection device for a vacuum pneumatic centerline butterfly valve. Background Art

[0002] The vacuum pneumatic centerline butterfly valve is a type of valve used to control the flow of fluids. It is controlled by a pneumatic device driven by a vacuum system and is usually used in industrial pipeline systems to regulate or cut off the flow of fluids. The reason why the vacuum pneumatic centerline butterfly valve needs offline leak detection is mainly to ensure the safety and reliability of the pipeline system. Even small leaks may accumulate in the pipeline system and become a serious safety hazard. Especially in vacuum systems, leaks can cause unstable system pressure and may even cause serious accidents such as explosions or fires. Leaks can affect the vacuum or pressure of the pipeline system and reduce the performance and efficiency of the system. This may lead to problems such as unstable system operation, reduced production capacity, and reduced production quality. Offline leak detection can help timely discover and repair leaks in the pipeline system, ensure the safe operation of the system, improve production efficiency, and reduce costs and risks.

[0003] After searching, the announcement number CN212564690U discloses a vacuum pneumatic centerline butterfly valve offline leak detection device, which is used for offline leak detection of butterfly valve components. The butterfly valve components include a pneumatic actuator, a valve body installed on the side of the pneumatic actuator, and a butterfly valve seal arranged inside the valve body. The vacuum pneumatic centerline butterfly valve offline leak detection device includes a vacuum device arranged on one side of the valve body, an extension plate is extended outwardly from one end of the vacuum device close to the valve body, and a fixing plate for mounting and fixing with the extension plate is arranged on the other side of the valve body. An air pipe for introducing gas is arranged in the vacuum device, and an interface assembly is arranged between the vacuum device and the air pipe. The embodiment of the utility model installs a vacuum device on the valve body to simulate and restore the online installation state of the vacuum pneumatic centerline butterfly valve, and seals the butterfly valve seal along the circumferential direction of the butterfly valve, which effectively solves the problem that the vacuum pneumatic centerline butterfly valve cannot be leaked offline, improves production efficiency and equipment stability, and is easy to repair, maintain and replace.

[0004] In the above application, a vacuum device is installed on the valve body to simulate and restore the online installation state of the vacuum pneumatic center line butterfly valve, and the butterfly valve seal is sealed along the circumferential direction of the butterfly valve, which effectively solves the problem that the vacuum pneumatic center line butterfly valve cannot be leaked offline, improves production efficiency and equipment stability, and facilitates repair, maintenance and replacement. However, the problem of water leakage of the vacuum pneumatic center line butterfly valve during detection has not been solved. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides a vacuum pneumatic center line butterfly valve offline leakage detection device, which aims to improve the problem that the water leakage performance of the vacuum pneumatic center line butterfly valve cannot be tested during the detection process.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A vacuum pneumatic centerline butterfly valve offline leak detection device comprises a base, the inner wall of the base is fixedly connected to a motor, the output end of the motor is fixedly connected to a connecting column, the outer wall of the connecting column is rotatably connected to the inner wall of the base, the upper surface of the connecting column is fixedly connected to a turntable, the outer wall of the turntable is rotatably connected to a concave plate, the lower surface of the concave plate is fixedly connected to the upper surface of the base, the outer wall of the turntable is slidably connected to a fixed column, the outer wall of the fixed column is fixedly connected to a clamping plate, the outer wall of the clamping plate is slidably connected to the inner wall of the concave plate, the inner wall of the clamping plate is fixedly connected to a sponge, and a support assembly is provided on the upper surface of the base.

[0008] Preferably, the support assembly comprises a leg, a lower surface of the leg is fixedly connected to an upper surface of the base, and an outer wall of the leg is fixedly connected to a fixing ring.

[0009] Preferably, the inner wall of the fixing ring is fixedly connected with a water inlet pipe, the outer wall of the water inlet pipe is fixedly connected with a first ring plate, the outer wall of the first ring plate is fixedly connected with a fixing plate, and the outer wall of the fixing plate is fixedly connected with a second ring plate.

[0010] Preferably, the outer wall of the fixed plate is fixedly connected to a circular ring, the inner wall of the circular ring is fixedly connected to a first rotating shaft, the outer wall of the first rotating shaft is fixedly connected to a first buckle plate, and the outer wall of the first buckle plate is fixedly connected to the outer wall of the first ring plate.

[0011] Preferably, the outer wall of the first rotating shaft is rotatably connected to a second buckle plate, the outer wall of the second buckle plate is fixedly connected to the outer wall of the second ring plate, the inner wall of the second buckle plate is rotatably connected to a rotating plate, and the outer wall of the rotating plate is fixedly connected to a wrench.

[0012] Preferably, the inner wall of the rotating plate is rotatably connected to a rectangular ring plate, the outer wall of the rectangular ring plate is fixedly connected to a second rotating shaft, and the outer wall of the second rotating shaft is rotatably connected to the inner wall of the first buckle plate.

[0013] Preferably, the inner wall of the first ring plate is slidably connected to a valve body, the outer wall of the valve body is slidably connected to the inner wall of the second ring plate, and the inner wall of the valve body is rotatably connected to a valve column.

[0014] Preferably, a butterfly is fixedly connected to the outer wall of the valve column, the outer wall of the butterfly is slidably connected to the inner wall of the valve body, and the outer wall of the valve column is fixedly connected to the valve.

[0015] The utility model has the following beneficial effects:

[0016] 1. In the utility model, the motor drives the connecting column to rotate, and the rotation of the connecting column drives the turntable to rotate, which can drive the fixed column to slide in the special-shaped groove provided in the turntable, and the sliding of the fixed column can drive the clamping plate to slide on the inner wall of the concave plate, and the sliding of the clamping plate can wrap the valve body and the valve column. The inner wall of the clamping plate is equipped with a sponge. If the butterfly is not airtight or there is a leak at the connection between the valve body and the valve column, it can be observed whether there is a leak by checking whether there is water stain on the sponge, thereby achieving the effect of detecting the leakage of the butterfly valve.

[0017] 2. In the utility model, the rotating plate can be driven to rotate on the outer wall of the rectangular ring plate by turning the wrench, and the rectangular ring plate can be turned over by turning the rotating plate, and the first rotating shaft of the circular ring can be driven to rotate on the inner wall of the circular ring by turning the rectangular ring plate, so that the second ring plate can be lifted to separate the second ring plate from the first ring plate, and then the valve body can be put in and the wrench can be turned to fasten the second ring plate to the first ring plate, so as to fix the vacuum pneumatic center line butterfly valve and prevent it from falling or moving during the detection process. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A three-dimensional diagram of an off-line leakage detection device for a vacuum pneumatic centerline butterfly valve proposed by the utility model;

[0019] Figure 2 A schematic diagram of a clamping plate of a vacuum pneumatic centerline butterfly valve offline leak detection device proposed by the utility model;

[0020] Figure 3 A schematic diagram of a turntable of a vacuum pneumatic centerline butterfly valve offline leak detection device proposed by the utility model;

[0021] Figure 4 Schematic diagram of the first ring plate of a vacuum pneumatic centerline butterfly valve offline leak detection device proposed by the utility model

[0022] Figure 5 The utility model discloses a valve body schematic diagram of a vacuum pneumatic centerline butterfly valve offline leakage detection device.

[0023] Legend:

[0024] 1. Base; 2. Motor; 3. Connecting column; 4. Turntable; 5. Fixed column; 6. Concave plate; 7. Clamping plate; 8. Sponge; 9. Leg; 10. Fixed ring; 11. Water inlet pipe; 12. First ring plate; 13. Fixed plate; 14. Second ring plate; 15. Circular ring; 16. First rotating shaft; 17. First buckle plate; 18. Second buckle plate; 19. Turntable; 20. Rectangular ring plate; 21. Second rotating shaft; 22. Wrench; 23. Valve body; 24. Butterfly; 25. Valve column; 26. Valve. DETAILED DESCRIPTION

[0025] 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.

[0026] Reference Figure 1 - Figure 3 The utility model provides an embodiment: a vacuum pneumatic centerline butterfly valve offline leak detection device, comprising a base 1, the inner wall of the base 1 is fixedly connected with a motor 2, the output end of the motor 2 is fixedly connected with a connecting column 3, the outer wall of the connecting column 3 is rotatably connected to the inner wall of the base 1, the upper surface of the connecting column 3 is fixedly connected with a turntable 4, the outer wall of the turntable 4 is rotatably connected with a concave plate 6, the lower surface of the concave plate 6 is fixedly connected to the upper surface of the base 1, the outer wall of the turntable 4 is slidably connected with a fixed column 5, the outer wall of the fixed column 5 is fixedly connected with a clamping plate 7, the outer wall of the clamping plate 7 is slidably connected to the inner wall of the concave plate 6, the inner wall of the clamping plate 7 is fixedly connected with a sponge 8, and the upper surface of the base 1 is provided with a supporting assembly;

[0027] Specifically, the motor 2 is fixed by the base 1, the connecting column 3 can be rotated by the motor 2, the turntable 4 is fixed by the connecting column 3, the turntable 4 rotates on the inner wall of the concave plate 6, the concave plate 6 is fixed by the base 1, the fixed column 5 slides on the inner wall of the turntable 4, the fixed column 5 is fixed by the clamping plate 7, the sponge 8 is fixed by the clamping plate 7, and a support component is provided on the upper surface of the base 1.

[0028] Reference Figure 1 The support assembly includes a leg 9, the lower surface of the leg 9 is fixedly connected to the upper surface of the base 1, and the outer wall of the leg 9 is fixedly connected to a fixing ring 10;

[0029] Specifically, the base 1 has a fixing effect on the supporting legs 9 , and the supporting legs 9 have a supporting effect on the fixing ring 10 .

[0030] Reference Figure 1 and Figure 4The inner wall of the fixed ring 10 is fixedly connected with a water inlet pipe 11, the outer wall of the water inlet pipe 11 is fixedly connected with a first ring plate 12, the outer wall of the first ring plate 12 is fixedly connected with a fixed plate 13, and the outer wall of the fixed plate 13 is fixedly connected with a second ring plate 14; the outer wall of the fixed plate 13 is fixedly connected with a circular ring 15, the inner wall of the circular ring 15 is fixedly connected with a first rotating shaft 16, the outer wall of the first rotating shaft 16 is fixedly connected with a first buckle plate 17, and the outer wall of the first buckle plate 17 is fixedly connected to the outer wall of the first ring plate 12; the outer wall of the first rotating shaft 16 is rotatably connected with a second buckle plate 18, the outer wall of the second buckle plate 18 is fixedly connected to the outer wall of the second ring plate 14, the inner wall of the second buckle plate 18 is rotatably connected with a rotating plate 19, and the outer wall of the rotating plate 19 is fixedly connected with a wrench 22; the inner wall of the rotating plate 19 is rotatably connected with a rectangular ring plate 20, the outer wall of the rectangular ring plate 20 is fixedly connected with a second rotating shaft 21, and the outer wall of the second rotating shaft 21 is rotatably connected to the inner wall of the first buckle plate 17;

[0031] Specifically, the water inlet pipe 11 is fixed by the fixing ring 10, the first ring plate 12 is fixed by the water inlet pipe 11, the fixing plate 13 is fixed by the first ring plate 12, the second ring plate 14 is fixed by the fixing plate 13, the circular ring 15 is fixed by the fixing plate 13, the first rotating shaft 16 is fixed by the circular ring 15, the first buckle plate 17 is fixed by the first rotating shaft 16, the first buckle plate 17 is fixed by the first ring plate 12, the second buckle plate 18 rotates on the outer wall of the first rotating shaft 16, the second buckle plate 18 is fixed by the second ring plate 14, the rotating plate 19 rotates on the inner wall of the second buckle plate 18, the wrench 22 is fixed by the rotating plate 19, the rectangular ring plate 20 rotates on the inner wall of the rotating plate 19, the second rotating shaft 21 is fixed by the rectangular ring plate 20, and the second rotating shaft 21 rotates on the inner wall of the first buckle plate 17.

[0032] Reference Figure 1 and Figure 5 The inner wall of the first ring plate 12 is slidably connected to the valve body 23, the outer wall of the valve body 23 is slidably connected to the inner wall of the second ring plate 14, and the inner wall of the valve body 23 is rotatably connected to the valve column 25; the outer wall of the valve column 25 is fixedly connected to the butterfly plate 24, the outer wall of the butterfly plate 24 is slidably connected to the inner wall of the valve body 23, and the outer wall of the valve column 25 is fixedly connected to the valve 26;

[0033] Specifically, the valve body 23 slides on the inner wall of the first ring plate 12 , the valve post 25 rotates on the inner wall of the valve body 23 , and the butterfly 24 is fixed by the valve post 25 , and the butterfly 24 slides on the inner wall of the valve body 23 , and the valve 26 is fixed by the valve post 25 .

[0034] Working principle: when the device is needed, pull the wrench 22. When the wrench 22 is pulled, the rotating plate 19 can be driven to rotate on the outer wall of the rectangular ring plate 20, and the rotating plate 19 can also be driven to flip. When the rotating plate 19 flips, the rectangular ring plate 20 can be driven to flip. When the rectangular ring plate 20 flips, it rotates on the inner walls of the first buckle plate 17 and the second buckle plate 18. When the rectangular ring plate 20 flips downward, it drives the first rotating shaft 16 to rotate on the inner wall of the circular ring 15, and then the second buckle plate 18 can be used to lift the second ring plate 14 to separate the second ring plate 14 from the first ring plate 12, and then the valve body 23 can be put in, and then the wrench 22 is pulled. When the wrench 22 is pulled, the rectangular ring plate 20 can be driven to flip, and the second ring plate 14 is fastened to the first ring plate 12, so as to fix the vacuum pneumatic centerline butterfly valve and prevent it from falling or moving during the detection process. After the butterfly valve is fixed, start the motor 2. When the motor 2 is working, it can drive the connecting column 3 to rotate. When the connecting column 3 rotates, it can drive the turntable 4 to rotate. When the turntable 4 rotates, it can drive the fixing column 5 to slide in the special-shaped groove opened in the turntable 4, and then drive the clamping plate 7 to slide on the inner wall of the concave plate 6. When the clamping plate 7 slides, it can wrap the valve body 23 and the valve column 25. The inner wall of the clamping plate 7 is equipped with a sponge 8. When the clamping plate 7 wraps the valve body 23 and the valve column 25, water is passed from the water inlet pipe 11 to the butterfly valve. If the butterfly plate 24 is not airtight or there is a leak at the connection between the valve body 23 and the valve column 25, it can be observed whether there is a leak by checking whether there is water stain on the sponge 8, thereby achieving the effect of detecting the leakage of the butterfly valve. The device can not only fix the vacuum pneumatic centerline butterfly valve to prevent it from falling or moving during the detection process, but also achieve the effect of detecting the leakage of the butterfly valve.

[0035] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A vacuum pneumatic centerline butterfly valve offline leak detection device, comprising a base (1), characterized in that: The inner wall of the base (1) is fixedly connected to a motor (2), the output end of the motor (2) is fixedly connected to a connecting column (3), the outer wall of the connecting column (3) is rotatably connected to the inner wall of the base (1), the upper surface of the connecting column (3) is fixedly connected to a turntable (4), the outer wall of the turntable (4) is rotatably connected to a concave plate (6), the lower surface of the concave plate (6) is fixedly connected to the upper surface of the base (1), the outer wall of the turntable (4) is slidably connected to a fixing column (5), the outer wall of the fixing column (5) is fixedly connected to a clamping plate (7), the outer wall of the clamping plate (7) is slidably connected to the inner wall of the concave plate (6), the inner wall of the clamping plate (7) is fixedly connected to a sponge (8), and the upper surface of the base (1) is provided with a supporting assembly.

2. According to claim 1, a vacuum pneumatic centerline butterfly valve offline leak detection device is characterized in that: The support assembly comprises a support leg (9), the lower surface of the support leg (9) is fixedly connected to the upper surface of the base (1), and the outer wall of the support leg (9) is fixedly connected to a fixing ring (10).

3. The vacuum pneumatic centerline butterfly valve offline leak detection device according to claim 2 is characterized by: The inner wall of the fixing ring (10) is fixedly connected to a water inlet pipe (11), the outer wall of the water inlet pipe (11) is fixedly connected to a first ring plate (12), the outer wall of the first ring plate (12) is fixedly connected to a fixing plate (13), and the outer wall of the fixing plate (13) is fixedly connected to a second ring plate (14).

4. The vacuum pneumatic centerline butterfly valve offline leak detection device according to claim 3 is characterized by: The outer wall of the fixed plate (13) is fixedly connected to a circular ring (15), the inner wall of the circular ring (15) is fixedly connected to a first rotating shaft (16), the outer wall of the first rotating shaft (16) is fixedly connected to a first buckle plate (17), and the outer wall of the first buckle plate (17) is fixedly connected to the outer wall of the first ring plate (12).

5. The vacuum pneumatic centerline butterfly valve offline leak detection device according to claim 4 is characterized by: The outer wall of the first rotating shaft (16) is rotatably connected to a second buckle plate (18), the outer wall of the second buckle plate (18) is fixedly connected to the outer wall of the second ring plate (14), the inner wall of the second buckle plate (18) is rotatably connected to a rotating plate (19), and the outer wall of the rotating plate (19) is fixedly connected to a wrench (22).

6. The vacuum pneumatic centerline butterfly valve offline leak detection device according to claim 5, characterized in that: The inner wall of the rotating plate (19) is rotatably connected to a rectangular ring plate (20), the outer wall of the rectangular ring plate (20) is fixedly connected to a second rotating shaft (21), and the outer wall of the second rotating shaft (21) is rotatably connected to the inner wall of the first buckle plate (17).

7. The vacuum pneumatic centerline butterfly valve offline leak detection device according to claim 3 is characterized by: The inner wall of the first ring plate (12) is slidably connected to a valve body (23), the outer wall of the valve body (23) is slidably connected to the inner wall of the second ring plate (14), and the inner wall of the valve body (23) is rotatably connected to a valve post (25).

8. The vacuum pneumatic centerline butterfly valve offline leak detection device according to claim 7, characterized in that: The outer wall of the valve column (25) is fixedly connected to a butterfly plate (24), the outer wall of the butterfly plate (24) is slidably connected to the inner wall of the valve body (23), and the outer wall of the valve column (25) is fixedly connected to a valve (26).

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