A flange valve seal detection apparatus

Abstract

The utility model relates to valve sealing detection technical field discloses a kind of flange valve sealing detection equipment, including shell, shell side wall is fixedly connected with display screen, the shell inside is fixedly connected with shower nozzle, the rotating cylinder is rotatably connected to the shower nozzle outer wall, the rotating cylinder outer wall is fixedly connected with rotating disc and gear, the shell inside is provided with clamping assembly;The clamping assembly includes cylinder, the cylinder output end is fixedly connected with fixed plate, the fixed plate side wall is fixedly connected with rack, the rack is engaged with the gear, the gear outer wall is rotatably connected in shell inner wall.In the utility model, fixed plate and rack are moved by cylinder drive, rack drives gear and rotating cylinder to rotate, rotating cylinder drives rotating disc to rotate again, rotating disc drives fixed column, bearing to move, and then drive connecting plate and clamping block to gather, realize flange valve limit, solve the inaccurate problem caused by its detection easy to deviate, improve equipment detection accuracy.

Description

Technical Field

[0001] This utility model relates to the field of valve seal testing technology, and in particular to a flange valve seal testing device. Background Technology

[0002] In industrial pipeline systems, flange valves are critical components controlling fluid transport. Their sealing performance directly affects the safety and stability of the system. Sealing failure can lead to fluid leakage, energy waste, and even safety accidents. Therefore, flange valves must undergo performance verification using specialized sealing testing equipment before leaving the factory or during regular maintenance. A flange valve sealing testing device has been developed to address this need. This type of equipment simulates actual operating conditions to detect leaks in critical areas such as the sealing surfaces and connection points of the flange valve, ensuring that the flange valve meets industrial standards. It is an important testing tool for ensuring the reliable operation of pipeline systems.

[0003] Existing flange valve sealing testing equipment often employs manually adjustable mechanical structures or simple pneumatic push rod structures to fix flange valves. Manually adjustable structures typically involve manually rotating bolts to move clamping plates, which then clamp the flange valve from both sides. The technical principle is based on the threaded transmission of the bolts to achieve linear displacement of the clamping plates, thereby generating clamping force. Simple pneumatic push rod structures, on the other hand, use a cylinder to directly push a single or symmetrically arranged push rod, causing the clamping blocks at the push rod ends to contact the outer wall of the flange valve. The axial force output by the cylinder achieves the fixing of the flange valve; the entire process relies on the single axial movement of the cylinder to complete the fixing action.

[0004] However, existing technologies have significant shortcomings in practical applications. Taking a simple pneumatic push rod structure as an example, it only clamps the flange valve using the axial force of the push rod, failing to achieve omnidirectional limiting of the flange valve. During the testing process, if the pressure of the tested medium fluctuates or the equipment vibrates slightly, the flange valve is prone to lateral or longitudinal displacement, leading to misalignment of the contact surface during sealing testing. This results in inaccurate test results, failing to truly reflect the sealing performance of the flange valve, allowing substandard flange valves to enter the market and creating potential safety hazards. Summary of the Invention

[0005] To overcome the above shortcomings, this utility model provides a flange valve sealing testing device, which aims to improve the problem of inaccurate testing caused by easy deviation during flange valve testing in the prior art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a flange valve sealing testing device, comprising a housing, a display screen fixedly connected to the side wall of the housing, a nozzle fixedly connected inside the housing, a rotating cylinder rotatably connected to the outer wall of the nozzle, a rotating disk and a gear fixedly connected to the outer wall of the rotating cylinder, and a clamping assembly provided inside the housing;

[0007] The clamping assembly includes a cylinder, a fixed plate is fixedly connected to the output end of the cylinder, a rack is fixedly connected to the side wall of the fixed plate, the rack meshes with the gear, the outer wall of the gear is rotatably connected to the inner wall of the housing, a bearing is slidably connected inside the rotating disk, a fixed column is fixedly connected inside the bearing, a connecting plate is fixedly connected to the bottom of the fixed column, and a limit assembly is provided on the top of the housing.

[0008] As a further description of the above technical solution:

[0009] The limiting component includes a slide rail, the bottom of which is fixedly connected to the top of the housing, and a slider is slidably connected to the outer wall of the slide rail, the top of which is fixedly connected to the bottom of the connecting plate.

[0010] As a further description of the above technical solution:

[0011] The connecting plate has a slot inside and a clamping block on the top.

[0012] As a further description of the above technical solution:

[0013] A hollow column is slidably connected inside the clamping block, and a limit ring is fixedly connected to the outer wall of the hollow column. The outer wall of the limit ring is slidably connected to the inner wall of the clamping block.

[0014] As a further description of the above technical solution:

[0015] A rotating column is fixedly connected inside the hollow column, and a locking column is fixedly connected to the outer wall of the rotating column.

[0016] As a further description of the above technical solution:

[0017] A spring is provided on the inner wall of the hollow column. One end of the spring is fixedly connected to the inner wall of the hollow column, and the other end of the spring is fixedly connected to the inner wall of the clamping block.

[0018] As a further description of the above technical solution:

[0019] The outer wall of the card post is rotatably connected to the inside of the connecting plate, and the outer wall of the card post is slidably connected to the inner wall of the card slot.

[0020] This utility model has the following beneficial effects:

[0021] 1. In this utility model, the fixed plate and rack are moved by the cylinder, and then the rack moves to drive the gear and rotating cylinder to rotate. The rotating cylinder drives the rotating disk on the outer wall to rotate. The rotating disk is subjected to force to drive the fixed column and bearing to move, and then the connecting plate and clamping block at the bottom are brought together, which achieves the effect of limiting the flange valve. This solves the problem of easy deviation during flange valve testing, which leads to inaccurate testing, and improves the testing accuracy of the flange valve sealing testing equipment.

[0022] 2. In this utility model, pressing down on the rotating column and rotating it simultaneously causes the rotating column to drive the locking column to rotate inside the connecting plate. Then, the rotating column moves and drives the hollow column and the limiting ring on the outer wall to rotate, which in turn compresses the spring on the inner wall. After the locking column moves, it will disengage from the connecting plate, achieving the effect of quickly disassembling the clamping block. This solves the problem of the traditional clamping block disassembly process being cumbersome and time-consuming, and improves the convenience of the flange valve sealing test equipment. Attached Figure Description

[0023] Figure 1 This is a perspective view of a flange valve sealing testing device proposed in this utility model;

[0024] Figure 2 This is a schematic diagram of the inner wall structure of the outer shell of a flange valve sealing testing device proposed in this utility model;

[0025] Figure 3 This is a schematic diagram of the exploded structure of the clamping block of a flange valve sealing testing device proposed in this utility model;

[0026] Figure 4 This is a schematic diagram of the bottom structure of the rotating disk of a flange valve sealing testing device proposed in this utility model;

[0027] Figure 5 This is a schematic diagram of the cross-sectional structure of the clamping block of a flange valve sealing testing device proposed in this utility model;

[0028] Figure 6 for Figure 5 Enlarged view of point A in the middle.

[0029] Legend:

[0030] 1. Outer shell; 2. Display screen; 3. Rotating disc; 4. Fixed column; 5. Bearing; 6. Slide rail; 7. Slider; 8. Connecting plate; 9. Clamping block; 10. Cylinder; 11. Fixed plate; 12. Rack; 13. Gear; 14. Rotating cylinder; 15. Nozzle; 16. Rotating column; 17. Hollow column; 18. Limiting ring; 19. Spring; 20. Locking post; 21. Locking groove Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Reference Figures 1-4 The present invention provides an embodiment of a flange valve sealing test device, comprising a housing 1, a display screen 2 fixedly connected to the side wall of the housing 1, the display screen 2 being used to display the test data and operating status of the device, thereby facilitating the operator to monitor the working status of the device in real time and improving the ease of operation; a nozzle 15 fixedly connected inside the housing 1, the nozzle 15 being used to spray the test medium onto the flange valve, thereby testing the sealing performance of the flange valve and ensuring that the flange valve can be accurately detected to have leakage problems; a rotating cylinder 14 is rotatably connected to the outer wall of the nozzle 15, a rotating disk 3 and a gear 13 are fixedly connected to the outer wall of the rotating cylinder 14; and a clamping assembly is provided inside the housing 1.

[0033] The clamping assembly includes a cylinder 10. The output end of the cylinder 10 pushes the fixed plate 11 to move laterally. The fixed plate 11 drives the rack 12 to slide synchronously. The rack 12 cooperates with the gear 13 to transmit power, converting the linear motion of the rack 12 into the rotational motion of the gear 13, thereby achieving the effect of driving the rotating cylinder 14 and the rotating disk 3 to rotate. The output end of the cylinder 10 is fixedly connected to the fixed plate 11, and the rack 12 is fixedly connected to the side wall of the fixed plate 11. The rack 12 meshes with the gear 13, and the outer wall of the gear 13 is rotatably connected to the inner wall of the outer casing 1. The rotating disk 3 has a bearing 5 that slides inside, and a fixed column 4 that is fixed inside the bearing 5. A connecting plate 8 is fixedly connected to the bottom of the fixed column 4. A limit component is provided on the top of the outer shell 1. The limit component includes a slide rail 6. The slide rail 6 slides in conjunction with the slider 7 to provide guidance and limit for the movement of the connecting plate 8, thereby preventing the connecting plate 8 from shifting and ensuring that the clamping block 9 accurately clamps the flange valve. The bottom of the slide rail 6 is fixedly connected to the top of the outer shell 1, and the slider 7 is slidably connected to the outer wall of the slide rail 6. The top of the slider 7 is fixedly connected to the bottom of the connecting plate 8.

[0034] Reference Figures 4-6The connecting plate 8 has a slot 21 inside, and a clamping block 9 is set on the top of the connecting plate 8. The clamping block 9 is used to clamp the flange valve from multiple directions, thereby achieving stable limiting of the flange valve and ensuring that the flange valve position is fixed during subsequent sealing tests, thus ensuring the accuracy of the test results. A hollow column 17 is slidably connected inside the clamping block 9. A limit ring 18 is fixedly connected to the outer wall of the hollow column 17. The outer wall of the limit ring 18 is slidably connected to the inner wall of the clamping block 9. A rotating column 16 is fixedly connected inside the hollow column 17. A locking pin 20 is fixedly connected to the outer wall of the rotating column 16. The locking pin 20 cooperates with the slot 21 to engage and disengage. This achieves the effect of quick disassembly and assembly between clamping block 9 and connecting plate 8, greatly shortening maintenance time and improving the ease of use of the equipment. A spring 19 is provided on the inner wall of hollow column 17. The spring 19 is used to push hollow column 17 and rotating column 16 to reset after the locking state of clamping column 20 and clamping groove 21 is released, thereby facilitating the disassembly and installation of clamping block 9 and improving maintenance efficiency. One end of spring 19 is fixedly connected to the inner wall of hollow column 17, and the other end of spring 19 is fixedly connected to the inner wall of clamping block 9. The outer wall of clamping column 20 is rotatably connected to the inside of connecting plate 8, and the outer wall of clamping column 20 is slidably connected to the inner wall of clamping groove 21.

[0035] Working principle: In the flange valve sealing test equipment, the cylinder 10 starts and pushes the fixed plate 11 to move laterally. The fixed plate 11 drives the rack 12 on the side wall to slide synchronously. Since the rack 12 and the gear 13 mesh with each other, the linear motion of the rack 12 is converted into the rotational motion of the gear 13, which in turn drives the rotating cylinder 14, which is fixedly connected to the gear 13, to rotate around the axis of the nozzle 15. When the rotating cylinder 14 rotates, the rotating disk 3 on its outer wall rotates accordingly. The rotating disk 3 generates a radial thrust on the fixed column 4 through the internally slidably connected bearing 5, causing the fixed column 4 to drive the bottom connecting plate 8 to move towards the flange valve. At the same time, the slider 7 at the bottom of the connecting plate 8 slides along the slide rail 6 at the top of the outer shell 1, providing guidance and limiting for the movement of the connecting plate 8, preventing it from deviating. Finally, the clamping block 9 at the top of the connecting plate 8 gathers from multiple directions and clamps the flange valve, achieving stable limiting and ensuring that the flange valve position is fixed during the subsequent sealing test.

[0036] After the inspection is completed, if the clamping block 9 needs to be replaced or maintained, the rotating column 16 can be pressed down. The rotating column 16 drives the hollow column 17 to move downward inside the clamping block 9. The limiting ring 18 on the outer wall of the hollow column 17 slides synchronously, which limits the movement of the hollow column 17. At the same time, the spring 19 on the inner wall of the hollow column 17 is compressed and stores elastic potential energy. Then, the rotating column 16 is rotated, which drives the locking pin 20 on the outer wall to rotate, so that the locking pin 20 is released from the locking groove 21 inside the connecting plate 8. Then, the rotating column 16 is released, the spring 19 releases elastic potential energy, and pushes the hollow column 17 and the rotating column 16 to reset. The clamping block 9 can then be removed from the connecting plate 8, completing the quick disassembly, greatly shortening the maintenance time and improving the ease of use of the equipment.

Claims

1. A flange valve sealing testing device, comprising a housing (1), characterized in that: The outer shell (1) is fixedly connected to the side wall of the display screen (2), the inner wall of the outer shell (1) is fixedly connected to the nozzle (15), the outer wall of the nozzle (15) is rotatably connected to the rotating cylinder (14), the outer wall of the rotating cylinder (14) is fixedly connected to the rotating disk (3) and the gear (13), and the outer shell (1) is provided with a clamping assembly. The clamping assembly includes a cylinder (10), the output end of which is fixedly connected to a fixing plate (11), a rack (12) is fixedly connected to the side wall of the fixing plate (11), the rack (12) meshes with the gear (13), the outer wall of the gear (13) is rotatably connected to the inner wall of the outer shell (1), a bearing (5) is slidably connected inside the rotating disk (3), a fixing column (4) is fixedly connected inside the bearing (5), a connecting plate (8) is fixedly connected to the bottom of the fixing column (4), and a limit assembly is provided on the top of the outer shell (1).

2. The flange valve sealing testing device according to claim 1, characterized in that: The limiting component includes a slide rail (6), the bottom of which is fixedly connected to the top of the outer shell (1), and a slider (7) is slidably connected to the outer wall of the slide rail (6), the top of which is fixedly connected to the bottom of the connecting plate (8).

3. The flange valve sealing testing device according to claim 1, characterized in that: The connecting plate (8) has a slot (21) inside, and a clamping block (9) is provided on the top of the connecting plate (8).

4. The flange valve sealing testing device according to claim 3, characterized in that: A hollow column (17) is slidably connected inside the clamping block (9), and a limiting ring (18) is fixedly connected to the outer wall of the hollow column (17). The outer wall of the limiting ring (18) is slidably connected to the inner wall of the clamping block (9).

5. The flange valve sealing testing device according to claim 4, characterized in that: A rotating column (16) is fixedly connected inside the hollow column (17), and a locking column (20) is fixedly connected to the outer wall of the rotating column (16).

6. The flange valve sealing testing device according to claim 5, characterized in that: A spring (19) is provided on the inner wall of the hollow column (17). One end of the spring (19) is fixedly connected to the inner wall of the hollow column (17), and the other end of the spring (19) is fixedly connected to the inner wall of the clamping block (9).

7. The flange valve sealing testing device according to claim 6, characterized in that: The outer wall of the locking post (20) is rotatably connected to the inside of the connecting plate (8), and the outer wall of the locking post (20) is slidably connected to the inner wall of the slot (21).

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