Valve module helium detection tool structure

Abstract

The utility model relates to the technical field of valve module helium detection, in particular to a valve module helium detection tool structure which comprises a detection table, a machine frame is fixedly installed on the left side of the top end of the detection table, a lifting frame is movably installed at the upper end of the machine frame, and a lifting mechanism is arranged between the machine frame and the lifting frame. A compression pump is fixedly mounted on the right side of the upper end of the lifting frame, a gas storage bottle is fixedly mounted on the left side of the upper end of the lifting frame, and a detection mechanism is arranged on the right sides of the lifting frame and the detection table; and a recovery mechanism is arranged below the right side of the detection table. According to the utility model, through the arrangement of the recovery mechanism, residual helium in the valve module and the transparent cover can be pumped out after detection is completed, and the helium is recovered into the gas storage bottle through the corrugated pipe, so that the helium is recycled, the waste of the helium is effectively reduced, the detection cost is reduced, and the resource utilization rate is improved at the same time; the device is especially suitable for industrial production environments requiring frequent helium detection.

Description

Technical Field

[0001] This utility model relates to the field of helium testing technology for valve modules, specifically a helium testing fixture structure for valve modules. Background Technology

[0002] In industrial manufacturing, valve modules, as core components of fluid control systems, directly impact the safety and reliability of the system through their sealing performance. To ensure valve module quality, helium leak testing is typically required. Due to its high sensitivity and accuracy, helium testing is widely used in testing the sealing performance of valve modules. By filling the valve module with helium and monitoring for leaks, the presence of defects can be quickly and accurately determined.

[0003] However, existing helium detection devices suffer from helium waste during the detection process. Since helium is a rare gas with high cost, and in existing technologies, helium is usually directly released into the atmosphere after detection without effective recovery and reuse, resulting in resource waste and increased detection costs. Utility Model Content

[0004] The purpose of this invention is to provide a valve module helium testing fixture structure to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A valve module helium detection tooling structure, including

[0007] A testing table, wherein a frame is fixedly installed on the top left side of the testing table, a lifting frame is movably installed on the upper end of the frame, and a lifting mechanism is provided between the frame and the lifting frame;

[0008] A compression pump is fixedly installed on the upper right side of the lifting frame, a gas storage cylinder is fixedly installed on the upper left side of the lifting frame, and a detection mechanism is set on the right side of the lifting frame and the detection platform.

[0009] A recycling mechanism is provided on the lower right side of the testing platform, and the recycling mechanism works in conjunction with the gas storage cylinder.

[0010] Preferably, the lifting mechanism includes a lead screw, which is movably installed in the middle of the frame, and a motor is fixedly installed at the top of the middle of the frame. The output shaft of the motor is fixedly connected to the lead screw, and a movable block is threaded onto the external part of the lead screw. The movable block is fixedly connected to the lifting frame.

[0011] Preferably, the detection mechanism includes an output pipe, an output pipe connected to the input end of a compression pump is fixedly installed at the output end of the gas storage cylinder, a switch valve is fixedly installed in the middle of the output pipe, and a one-way valve is fixedly installed at the top of the gas storage cylinder.

[0012] Preferably, the detection mechanism further includes an upper flange, which is fixedly installed at the output end of the compression pump. An annular groove is provided at the upper right side of the detection table, and a lower flange is fixedly installed in the middle of the annular groove. A transparent cover is fixedly installed on the outside of the upper flange, and a pressure sensor is fixedly installed on the front of the transparent cover.

[0013] Preferably, a sealing ring is fixedly installed in the middle of the same side of the upper flange and the lower flange, and a plurality of insert rods are fixedly installed on the same side of the upper flange and the lower flange and outside the sealing ring.

[0014] Preferably, the recycling mechanism includes a circulation pump, which is fixedly installed below the center of the detection platform. The circulation pump is connected to the gas storage cylinder via a corrugated pipe. Connecting pipes are fixedly installed in the center and on both sides of the annular groove. The bottom end of the connecting pipe is connected to a suction pipe via a four-way valve. The other end of the suction pipe is connected to the circulation pump. A second switching valve is fixedly installed in the center of the suction pipe.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. This valve module helium testing fixture structure, by setting up a recovery mechanism, can extract the residual helium inside the valve module and transparent cover after the test is completed, and recover the helium into the storage cylinder through a bellows, realizing the recycling of helium, effectively reducing helium waste, lowering the testing cost, and improving resource utilization. It is particularly suitable for industrial production environments that require frequent helium testing.

[0017] 2. This valve module helium detection fixture structure monitors the pressure changes inside the transparent cover in real time through a pressure sensor. Combined with the automatic control of switch valve one, switch valve two, and circulating pump, the detection process is automated. When a leak is detected in the valve module, the system can automatically stop helium injection and start helium recovery without manual intervention. This not only improves detection efficiency but also ensures the accuracy and reliability of the detection results, reducing errors that may be caused by human operation. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall main structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the overall side view structure of this utility model;

[0020] Figure 3 For the present utility model Figure 1 Enlarged view of point A in the middle;

[0021] Figure 4 For the present utility model Figure 2 Enlarged diagram of point B in the middle.

[0022] In the diagram: 1. Testing platform; 2. Frame; 3. Lifting frame; 4. Compression pump; 5. Gas cylinder; 6. Lead screw; 7. Motor; 8. Moving block; 9. Output pipe; 10. Check valve; 11. Upper flange; 12. Annular groove; 13. Lower flange; 14. Transparent cover; 15. Pressure sensor; 16. Sealing ring; 17. Insert rod; 18. Circulation pump; 19. Bellows; 20. Connecting pipe; 21. Four-way valve; 22. Suction pipe; 23. Switch valve two; 24. Switch valve one. Detailed Implementation

[0023] 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.

[0024] like Figure 1-4 As shown, this utility model provides a technical solution:

[0025] A valve module helium detection fixture structure includes a detection table 1. A frame 2 is fixedly installed on the top left side of the detection table 1. A lifting frame 3 is movably installed on the upper end of the frame 2. A lifting mechanism is provided between the frame 2 and the lifting frame 3. The lifting mechanism includes a lead screw 6. The lead screw 6 is movably installed in the middle of the frame 2. A motor 7 is fixedly installed at the top of the middle of the frame 2. The output shaft of the motor 7 is fixedly connected to the lead screw 6. A movable block 8 is threadedly connected to the lead screw 6. The movable block 8 is fixedly connected to the lifting frame 3. A sealing ring 16 is fixedly installed in the middle of the same side of the upper flange 11 and the lower flange 13. Several insertion rods 17 are fixedly installed on the same side of the upper flange 11 and the lower flange 13 and outside the sealing ring 16.

[0026] In this embodiment, during installation, the valve module to be tested is placed on the right side of the testing platform 1, ensuring it is aligned with the lower flange 13. The motor 7 is started, driving the lead screw 6 to rotate. Through the threaded connection between the lead screw 6 and the movable block 8, the lifting frame 3 is lowered, causing the upper flange 11 to tightly align with the lower flange 13. The sealing ring 16 between the upper flange 11 and the lower flange 13 ensures airtightness at the connection, while the insertion rod 17 further fixes their positions, preventing displacement during testing.

[0027] like Figure 3 As shown, a compression pump 4 is fixedly installed on the upper right side of the lifting frame 3, and a gas storage cylinder 5 is fixedly installed on the upper left side of the lifting frame 3. A detection mechanism is set on the right side of the lifting frame 3 and the detection platform 1. The detection mechanism includes an output pipe 9. An output pipe 9 connected to the input end of the compression pump 4 is fixedly installed at the output end of the gas storage cylinder 5. A switch valve 24 is fixedly installed in the middle of the output pipe 9. A one-way valve 10 is fixedly installed at the top of the gas storage cylinder 5. The detection mechanism also includes an upper flange 11. An upper flange 11 is fixedly installed at the output end of the compression pump 4. An annular groove 12 is opened at the upper right side of the detection platform 1. A lower flange 13 is fixedly installed in the middle of the annular groove 12. A transparent cover 14 is fixedly installed on the outside of the upper flange 11. A pressure sensor 15 is fixedly installed on the front of the transparent cover 14.

[0028] In this embodiment, during the detection process, the second switch valve 23 is in the closed state. If there is a leak in the valve module, helium will escape through the leak point, causing the internal pressure of the transparent cover 14 to increase. The pressure sensor 15 will detect this pressure change and send a signal. At this time, the system will automatically close the first switch valve 24 and stop the helium injection.

[0029] like Figure 4 As shown, a recycling mechanism is provided on the lower right side of the testing platform 1. The recycling mechanism includes a circulation pump 18. The circulation pump 18 is fixedly installed in the lower middle part of the testing platform 1. The circulation pump 18 is connected to the gas storage cylinder 5 through a bellows 19. Connecting pipes 20 are fixedly installed in the middle and on both sides of the annular groove 12. The bottom end of the connecting pipe 20 is connected to the suction pipe 22 through a four-way valve 21. The other end of the suction pipe 22 is connected to the circulation pump 18. A switch valve 23 is fixedly installed in the middle of the suction pipe 22. The recycling mechanism cooperates with the gas storage cylinder 5.

[0030] In this embodiment, after detection, the circulation pump 18 extracts the residual helium gas inside the valve module and the transparent cover 14 through the extraction pipe 22, and recovers the helium gas into the storage cylinder 5 through the bellows 19, thereby realizing the recycling of helium gas and reducing resource waste.

[0031] Working principle: First, during installation, place the valve module to be tested on the right side of the testing platform 1, ensuring it is aligned with the lower flange 13. Start the motor 7, which drives the lead screw 6 to rotate. Through the threaded connection between the lead screw 6 and the movable block 8, the lifting frame 3 is lowered, causing the upper flange 11 to tightly align with the lower flange 13. The sealing ring 16 between the upper flange 11 and the lower flange 13 ensures the airtightness of the connection, while the insertion rod 17 further fixes their positions, preventing displacement during testing. After the upper flange 11 and lower flange 13 are aligned, switch valve 1 24 is opened. Helium in gas cylinder 5 enters compressor pump 4 through output pipe 9. Compressor pump 4 pressurizes the helium and injects it into the valve module to be tested through upper flange 11. During the test, switch valve 2 23 is closed. If there is a leak in the valve module, helium will escape through the leak point, causing the internal pressure of transparent cover 14 to increase. Pressure sensor 15 will detect this pressure change and send a signal. At this time, the system will automatically close switch valve 1 24 to stop helium injection, open switch valve 2 23, and start circulation pump 18. Circulation pump 18 extracts the residual helium in the valve module and transparent cover 14 through suction pipe 22 and recovers the helium into gas cylinder 5 through bellows 19, realizing the recycling of helium and reducing resource waste. After the test is completed, motor 7 is started again to raise lifting frame 3, separating upper flange 11 and lower flange 13, and the tested valve module is taken out.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A valve module helium inspection tooling structure, characterized by: Comprising The detection platform (1), the top left side of the detection platform (1) is fixedly installed with a rack (2), the upper end of the rack (2) is movably installed with a lifting frame (3), a lifting mechanism is arranged between the rack (2) and the lifting frame (3); The right side of the lifting frame (3) is fixedly installed with a compression pump (4), the left side of the lifting frame (3) is fixedly installed with a gas cylinder (5), a detection mechanism is arranged between the lifting frame (3) and the right side of the detection platform (1); A recovery mechanism is arranged below the right side of the detection platform (1), and the recovery mechanism cooperates with the gas cylinder (5).

2. The valve module helium inspection tooling structure of claim 1, wherein: The lifting mechanism comprises a lead screw (6), the lead screw (6) is movably installed in the middle of the rack (2), a motor (7) is fixedly installed at the top of the middle of the rack (2), the output shaft of the motor (7) is fixedly connected with the lead screw (6), the outer thread of the lead screw (6) is connected with a movable block (8), and the movable block (8) is fixedly connected with the lifting frame (3).

3. The valve module helium leak testing tooling structure of claim 1, wherein: The detection mechanism comprises an output pipe (9), the output pipe (9) is fixedly installed at the output end of the gas cylinder (5) and communicates with the input end of the compression pump (4), a switch valve one (24) is fixedly installed in the middle of the output pipe (9), and a check valve (10) is fixedly installed at the top of the gas cylinder (5).

4. The valve module helium inspection tooling structure of claim 3, wherein: The detection mechanism further comprises an upper flange (11), the upper flange (11) is fixedly installed at the output end of the compression pump (4), an annular groove (12) is formed in the right side of the detection platform (1), a lower flange (13) is fixedly installed in the middle of the annular groove (12), a transparent cover (14) is fixedly installed outside the upper flange (11), and a pressure sensor (15) is fixedly installed on the front surface of the transparent cover (14).

5. The valve module helium leak testing tooling structure of claim 4, wherein: Sealing rings (16) are fixedly installed in the middle of the same side of the upper flange (11) and the lower flange (13), and a plurality of plug rods (17) are fixedly installed outside the sealing rings (16) on the same side of the upper flange (11) and the lower flange (13).

6. The valve module helium leak testing tooling structure of claim 5, wherein: The recovery mechanism comprises a circulating pump (18), the circulating pump (18) is fixedly installed below the middle of the detection platform (1), the circulating pump (18) and the gas cylinder (5) are connected through a corrugated pipe (19), connecting pipes (20) are fixedly installed in the middle and on both sides of the annular groove (12), an air suction pipe (22) is connected to the bottom end of the connecting pipe (20) through a four-way valve (21), the other end of the air suction pipe (22) is connected with the circulating pump (18), and a switch valve two (23) is fixedly installed in the middle of the air suction pipe (22).

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