A sealing detection device and operation method for a pressure vessel

Abstract

The present invention relates to the technical field of seal detection, and discloses a seal detection device and an operation method for a pressure vessel, including a tester body. An accommodation cavity is provided inside the tester body. A partition board is threadedly connected to the inner wall of the accommodation cavity, and a partition plate is also fixedly connected to the inner wall of the accommodation cavity. The partition plate and the partition board divide the accommodation cavity into three regions. One side of the partition board close to the partition plate is connected with an anti-twisting assembly and a power mechanism. One end of the anti-twisting assembly penetrates through the partition board and is connected with a connecting air pipe. This kind of seal detection device and operation method for a pressure vessel can completely seal components such as the connecting air pipe and external connectors in the accommodation cavity, and cooperate with the data monitoring of two monitoring sensors. Furthermore, the inside of the accommodation cavity can be supplied with air (or evacuated) through the air source inside the tester body, so as to self-check whether there is a leakage situation, which is convenient and fast.

Description

Technical Field

[0001] The present invention relates to the technical field of seal detection, and particularly to a seal detection device and an operation method for a pressure vessel. Background Art

[0002] A pressure vessel is a closed device used for storing gases or liquids and withstanding a certain pressure. In order to ensure that the pressure vessel does not leak during operation, so as to guarantee the safe operation of the device and prevent environmental pollution, it is often necessary to regularly perform airtightness detection on the pressure vessel.

[0003] The existing airtightness tester can, according to the situation of the pressure vessel to be tested, set corresponding instructions on the front display screen, and then connect and fix the connector at the front end of the test pipeline to the connecting pipe of the pressure vessel to be tested, and then automatically complete the test of the sealing performance in the pressure vessel to be tested. And during the test process, it is possible to know whether the seal in the pressure vessel is within the normal range, and the operation is simple and convenient.

[0004] However, the above-mentioned airtightness tester still has the following problems during actual use:

[0005] The connection between the airtightness tester and the pressure vessel to be tested is often realized through the connecting pipe on the back of the tester. However, during the test process of the tester, the air pipeline connection, joints, valves or seals of the tester may be loose, resulting in gas leakage from here, which will directly affect the test accuracy. And the existing tester does not have the function of self-checking the air pipeline, and the function is relatively single, making it difficult to meet the test requirements of higher precision and reliability. Summary of the Invention

[0006] Aiming at the deficiencies of the existing technology, the present invention provides a seal detection device and an operation method for a pressure vessel, which can perform self-checking on itself in advance before the tester body performs airtightness detection on the pressure vessel, thereby avoiding affecting the accuracy of subsequent tests.

[0007] To achieve the above object, the present invention provides the following technical solution: A sealing detection device for a pressure vessel, comprising a tester body. An accommodation cavity is formed inside the tester body. A partition is threadedly connected to the inner wall of the accommodation cavity, and a partition plate is also fixedly connected to the inner wall of the accommodation cavity. The partition plate and the partition divide the accommodation cavity into three regions. One side of the partition close to the partition plate is connected with an anti-tangling assembly and a power mechanism. One end of the anti-tangling assembly penetrates through the partition and is connected with a connecting air pipe. One end of the connecting air pipe is connected with a winding assembly, and the other end of the connecting air pipe is also fixedly connected with an external connecting head. One end of the external connecting head is connected with a protective structure. The other end of the protective structure penetrates to the outside of the accommodation cavity. The protective structure is connected with the end of the winding assembly far from the partition plate. The output end of the power mechanism is connected with the end of the winding assembly close to the partition plate. Monitoring sensors are fixedly connected to both sides of the partition plate.

[0008] Further, the power mechanism includes a transmission motor, a gear and an internal gear ring. The outer wall of the transmission motor is fixedly connected to one side of the partition close to the partition plate. The output shaft of the transmission motor is fixedly connected to the inner wall of the gear. The gear meshes with the internal gear ring. The side wall of the internal gear ring is connected with the winding assembly.

[0009] Further, the winding assembly includes a winding shaft and two side plates. Both ends of the winding shaft are fixedly connected to the middle parts of the adjacent sides of the two side plates respectively. The outer wall of one of the side plates is rotatably connected to the inner wall of the partition plate. The outer wall of the other side plate is rotatably connected to the inner wall of the accommodation cavity. And the side plate rotatably connected to the partition plate is also fixedly connected to the side wall of the internal gear ring. The side plate rotatably connected to the accommodation cavity is also connected with the protective structure. The end of the connecting air pipe far from the anti-tangling assembly penetrates through one of the side plates and is fixedly connected to the outer wall of the winding shaft.

[0010] Further, the protective structure includes a support pipe, a pushing assembly and a closing assembly. One end of the pushing assembly is connected with the accommodation cavity and the side plate. The other end of the pushing assembly is connected with the support pipe, the external connecting head and the closing assembly. The lower end of the closing assembly is connected with the end of the support pipe located outside the tester body.

[0011] Furthermore, the driving component includes an external gear ring, a slider, a rack plate, a moving plate and several magnets. A moving cavity and a supporting opening that communicate with each other are formed inside the supporting tube. The external gear ring is sleeved and fixedly connected to the outer wall of the side plate away from the partition plate. A sliding groove is formed on the top surface of the storage cavity. The outer wall of the upper end of the slider is slidably connected to the inner wall of the sliding groove. The lower end of the slider is fixedly connected to the upper surface of one end of the rack plate. The other end of the rack plate penetrates into the moving cavity and is fixedly connected to the side wall of the moving plate. The outer wall of the moving plate is slidably connected to the inner wall of the moving cavity. One side of the moving plate away from the rack plate is fixedly connected to several magnets. One side of the moving plate close to the magnets abuts against one side of the external connector close to the connecting air pipe, and one side of the moving plate close to the magnets is also connected to the sealing component. The outer wall of the connecting air pipe is slidably connected to the inner wall of the supporting opening. The total length of the moving cavity and the supporting opening is greater than the total length of the external connector and the moving plate.

[0012] Furthermore, the sealing component includes a side door, an L-shaped block, a rotating rod, two rotating blocks and two pull ropes. One end of the L-shaped block is fixedly connected to the bottom surface of the end of the supporting tube located outside the tester body. The other end of the L-shaped block is sleeved and fixedly connected to the outer wall of the middle part of the rotating rod. The outer walls of both ends of the rotating rod are respectively rotatably connected to the inner walls of one ends of the two rotating blocks. The other ends of the two rotating blocks are fixedly connected to the bottom surface of the side door. The side wall of the side door abuts against the side wall of the supporting tube, and the size of the side door is the same as that of the supporting tube. Pulling openings are respectively formed through both sides of the supporting opening. One side of the side door close to the supporting tube is fixedly connected to one ends of the two pull ropes. The other ends of the two pull ropes respectively penetrate through the two pulling openings and are fixedly connected to the side wall of the moving plate.

[0013] Furthermore, the anti-twisting component includes an air inlet and outlet head, an internal connector and a sealing bearing. One end of the air inlet and outlet head is fixedly connected to one side of the partition plate close to the partition board. The outer wall of the other end of the air inlet and outlet head is fixedly connected to the inner ring of the sealing bearing. The outer wall of the outer ring of the sealing bearing is fixedly connected to the inner wall of one end of the internal connector. The other end of the internal connector is fixedly connected to the end of the connecting air pipe away from the external connector. The air inlet and outlet head, the internal connector and the connecting air pipe are internally connected.

[0014] Furthermore, a maintenance opening communicating with the storage cavity is formed through the side of the tester body away from the display screen. A rear door is slidably connected to the inner wall of the maintenance opening. Several mounting blocks are fixedly connected to the side wall of the rear door. Several mounting blocks are all fastened to the tester body by bolts.

[0015] Furthermore, two anti-loosening pressure rollers are fixedly connected to the inner wall of the partition plate close to the supporting tube and the rear door. The two anti-loosening pressure rollers are respectively located on the upper and lower sides of the connecting air pipe, and the side walls of the two anti-loosening pressure rollers abut against the outer wall of the connecting air pipe.

[0016] An operation method of a sealing detection device for a pressure vessel includes the following operation steps:

[0017] Step 1: When it is necessary to perform an airtightness test on a pressure vessel, simply place the tester body in a suitable position first. After inserting the power supply, the tester body can be normally started. During the startup process of the tester body, "self-check" will be automatically enabled, that is, the internal air source of the tester body will supply air outward normally. During the air supply process, the air in the two spaces on both sides of the partition plate will be monitored by two monitoring sensors. Since the anti-twisting component is between the partition plate and the partition board, and the connecting air pipe and the external connector are on the other side of the partition plate, when one of the monitoring sensors detects a change in the pressure in the space where it is located, that is, there is a leakage in the anti-twisting component, connecting air pipe or external connector in this area, a signal can be displayed on the display screen of the tester body after startup, so as to remind the maintenance personnel to carry out maintenance.

[0018] Step 2: If the self-check is passed, the tester body can be normally used to perform an airtightness test on the pressure vessel. Just turn on the power mechanism through the internal controller of the tester body. After the power mechanism is started, the output end can drive the winding component to rotate inside the storage cavity and the partition plate. During the rotation of the winding component, not only can the connecting air pipe located inside the winding component be pushed outwards to make it unfold; at the same time, it can also push the protection structure to move a certain distance. After the protection structure moves a short distance, it will first open the protection and block of the storage cavity by the protection structure, so that the external connector and the connecting air pipe can be exposed from here, and while opening the block, it can also push the external connector and the connecting air pipe outwards for a certain distance to facilitate the operator to pull more conveniently. When the appropriate length is pulled out, the pressure vessel can be normally detected.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. For this kind of sealing detection device for pressure vessels, by setting a protection structure on the side of the tester body away from the display screen, components such as the connecting air pipe and the external connector can be completely sealed in the storage cavity, and combined with the data monitoring of the two monitoring sensors, the internal air source of the tester body can be used to supply air (or extract air) to the inside of the storage cavity, and then it can be self-checked to find out whether there is a leakage situation, which is convenient and fast;

[0021] 2. For this kind of sealing detection device for pressure vessels, by setting a power mechanism and a storage component inside the storage cavity, the connecting air pipe can be automatically retracted into the storage cavity when it is necessary to use the connecting air pipe to detect the pressure vessel or after the detection is completed, which is convenient and time-saving;

[0022] 3. This kind of sealing detection device for pressure vessels can ensure the effective connectivity between the connecting air pipe and the internal air source of the tester body by setting an anti-twisting component between them. When the connecting air pipe rotates and winds up with the winding component, the connecting air pipe will not be "twisted" with the winding component, thus preventing the situation that the connecting air pipe is separated from the internal air source of the tester body.

[0023] 4. This kind of sealing detection device for pressure vessels divides the protective structure into a support pipe, a pushing component, and a closing component. The closing component can isolate and seal the entire storage cavity. When detection is required, with the start of the power mechanism, the connecting air pipe and the external connecting head can be automatically pushed out from the inside of the support pipe, and when the connecting air pipe and the external connecting head are pushed out, the closing component can be automatically opened to seal the opening of the support pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is the overall external view schematic diagram of the present invention;

[0025] Figure 2 is the overall external view schematic diagram of another perspective of the present invention;

[0026] Figure 3 is the partial explosion schematic diagram of the present invention based on Figure 2 ;

[0027] Figure 4 is the partial sectional view schematic diagram of the tester body of the present invention;

[0028] Figure 5 is the enlarged schematic diagram of part A in the present invention Figure 4 ;

[0029] Figure 6 is the schematic diagram of another perspective of each component in the present invention Figure 4 ;

[0030] Figure 7 is the schematic diagram of the internal structure of the tester body of the present invention;

[0031] Figure 8 is the detailed connection schematic diagram of components such as the partition board, the storage component, and the protective structure of the present invention;

[0032] Figure 9 is the schematic diagram of another perspective of each component in the present invention Figure 7 ;

[0033] Figure 10 is the detailed connection schematic diagram of the storage component and the power mechanism of the present invention;

[0034] Figure 11 is the explosion schematic diagram of the connecting air pipe, the external connecting head, and the protective structure of the present invention.

[0035] In the figure: 1. Tester body; 2. Support pipe; 3. Side door; 4. Rear door; 5. Mounting block; 6. Maintenance opening; 7. External toothed ring; 8. Side plate; 9. Storage cavity; 10. Anti-loosening pressure roller; 11. Chute; 12. Partition plate; 13. Monitoring sensor; 14. Slide block; 15. Rack plate; 16. Connecting air pipe; 17. Air inlet and outlet head; 18. Partition; 19. Rotating block; 20. L-shaped block; 21. Driving motor; 22. Inner connector; 23. Sealing bearing; 24. Inner toothed ring; 25. Gear; 26. Reel; 27. Moving plate; 28. Magnet; 29. Outer connector; 30. Pulling rope; 31. Moving cavity; 32. Support opening; 33. Rotating rod; 34. Pulling opening. Specific implementation mode

[0036] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0037] Please refer to Figures 1 - 11 , a sealing detection device for a pressure vessel, including a tester body. A storage cavity 9 is opened inside the tester body 1. The inner wall of the storage cavity 9 is threadedly connected with a partition 18, and a partition plate 12 is also fixedly connected to the inner wall of the storage cavity 9. The partition plate 12 and the partition 18 divide the storage cavity 9 into three regions. One side of the partition 18 close to the partition plate 12 is connected with an anti-tangling component and a power mechanism. One end of the anti-tangling component penetrates through the partition 18 and is connected with a connecting air pipe 16. One end of the connecting air pipe 16 is connected with a winding component, and the other end of the connecting air pipe 16 is also fixedly connected with an outer connector 29. One end of the outer connector 29 is connected with a protection structure, and the other end of the protection structure penetrates to the outside of the storage cavity 9. The protection structure is connected with the end of the winding component far from the partition 18. The output end of the power mechanism is connected with the end of the winding component close to the partition 18. Monitoring sensors 13 are fixedly connected to both sides of the partition plate 12.

[0038] As Figures 1 to 11 shown, the sealing detection device for a pressure vessel in the present invention includes the following operation steps:

[0039] Step 1: When it is necessary to perform an airtightness test on a pressure vessel, simply place the tester body 1 in a suitable position first. After inserting the power supply, the tester body 1 can be normally started. Subsequently, during the startup process of the tester body 1, the "self-check" will be automatically enabled, that is, the internal air source of the tester body 1 will supply air outward normally. During the air supply process, the air in the two spaces on both sides of the partition plate 12 will be monitored by two monitoring sensors 13. Since the anti-winding component is between the partition plate 12 and the partition board 18, and the connecting air pipe 16 and the external connector 29 are on the other side of the partition plate 12, when one of the monitoring sensors 13 detects a change in the pressure in the space where it is located, it means that there is a leak in the anti-winding component, the connecting air pipe 16 or the external connector 29 in this area. Then, the signal can be displayed on the display screen of the tester body 1 after startup, so as to remind the maintenance personnel to perform maintenance.

[0040] Step 2: If the self-check is passed, the tester body 1 can be normally used to perform an airtightness test on the pressure vessel. After the power mechanism is started by the internal controller of the tester body 1, the output end can drive the winding component to rotate inside the storage cavity 9 and the partition plate 12. During the rotation of the winding component, not only can the connecting air pipe 16 located inside the winding component be pushed outwards to make it unfold, but also the protective structure can be pushed to move a certain distance. After the protective structure moves a short distance, it will first open the protective cover of the storage cavity 9, so that the external connector 29 and the connecting air pipe 16 can be exposed from here. At the same time as opening the cover, the external connector 29 and the connecting air pipe 16 can also be pushed outwards for a certain distance to facilitate the operator to pull the external connector 29 and the connecting air pipe 16 more conveniently. When the appropriate length is pulled out, the pressure vessel can be normally detected.

[0041] It should be particularly noted here that:

[0042] The monitoring sensor 13 can adopt commonly used gas sensors, vacuum gauges or other sensors with the same functions on the current market, and there is no specific limitation.

[0043] As a preferred solution of the present invention, the power mechanism includes a transmission motor 21, a gear 25 and an internal gear ring 24. The outer wall of the transmission motor 21 is fixedly connected to the side of the partition board 18 close to the partition plate 12. The output shaft of the transmission motor 21 is fixedly connected to the inner wall of the gear 25. The gear 25 meshes with the internal gear ring 24, and the side wall of the internal gear ring 24 is connected to the winding component.

[0044] More specifically, when it is necessary to control the winding of the connecting air pipe 16, just turn on the drive motor 21 through the internal controller of the tester body 1. After the drive motor 21 starts, the output shaft drives the gear 25 to rotate. Then, the gear 25 can drive the internal gear ring 24 to rotate. Furthermore, the winding component can be driven to rotate through the internal gear ring 24, so that the connecting air pipe 16 can be wound around the winding component, thereby avoiding the connecting air pipe 16 being left outside the tester body 1, which is not only easily damaged but also appears messy. At the same time, it can also avoid the internal part of the storage cavity 9 being kept in a sealed state when the tester body 1 performs self-checking.

[0045] In addition, when it is necessary to perform airtightness detection on the pressure vessel, just control the output shaft of the drive motor 21 to rotate in the reverse direction. And during winding, as the connecting air pipe 16 winds up and gets larger, it is necessary to change the rotation speed of the drive motor 21. This is a mature technology in existing motors, so it will not be described in detail here.

[0046] As a preferred embodiment of the present invention, the winding component includes a winding shaft 26 and two side plates 8. The two ends of the winding shaft 26 are respectively fixedly connected to the middle parts of the adjacent sides of the two side plates 8. The outer wall of one of the side plates 8 is rotatably connected to the inner wall of the partition plate 12, and the outer wall of the other side plate 8 is rotatably connected to the inner wall of the storage cavity 9. And the side plate 8 rotatably connected to the partition plate 12 is also fixedly connected to the side wall of the internal gear ring 24. The side plate 8 rotatably connected to the storage cavity 9 is also connected to the protection structure. One end of the connecting air pipe 16 away from the anti-winding component penetrates through one of the side plates 8 and is fixedly connected to the outer wall of the winding shaft 26.

[0047] More specifically, when the internal gear ring 24 rotates, the side plate 8 connected to the internal gear ring 24 at this time can rotate coaxially together, and will drive the winding shaft 26 and the other side plate 8 to rotate together. And because the connecting air pipe 16 is connected to the winding shaft 26, as the winding shaft 26 rotates, the connecting air pipe 16 will be gradually wound up. And because both sides of the connecting air pipe 16 are blocked by the two side plates 8, the connecting air pipe 16 will not tilt left and right.

[0048] As a preferred embodiment of the present invention, the protection structure includes a support pipe 2, a pushing component and a closing component. One end of the pushing component is connected to the storage cavity 9 and the side plate 8, and the other end of the pushing component is connected to the support pipe 2, the outer connection head 29 and the closing component. The lower end of the closing component is connected to one end of the support pipe 2 located outside the tester body 1.

[0049] The driving assembly includes an external gear ring 7, a slider 14, a rack plate 15, a moving plate 27, and several magnets 28. A moving cavity 31 and a support opening 32 that communicate with each other are formed inside the support tube 2. The external gear ring 7 is sleeved and fixedly connected to the outer wall of the side plate 8 away from the partition plate 12. A chute 11 is formed on the top surface of the storage cavity 9. The outer wall of the upper end of the slider 14 is slidably connected to the inner wall of the chute 11. The lower end of the slider 14 is fixedly connected to the upper surface of one end of the rack plate 15. The other end of the rack plate 15 penetrates into the moving cavity 31 and is fixedly connected to the side wall of the moving plate 27. The outer wall of the moving plate 27 is slidably connected to the inner wall of the moving cavity 31. The side of the moving plate 27 away from the rack plate 15 is fixedly connected to several magnets 28. The side of the moving plate 27 close to the magnets 28 abuts against the side of the outer connector 29 close to the connecting air pipe 16. And the side of the moving plate 27 close to the magnets 28 is also connected to the closing assembly. The outer wall of the connecting air pipe 16 is slidably connected to the inner wall of the support opening 32. The total length of the moving cavity 31 and the support opening 32 is greater than the total length of the outer connector 29 and the moving plate 27.

[0050] The closing assembly includes a side door 3, an L-shaped block 20, a rotating rod 33, two rotating blocks 19, and two pull ropes 30. One end of the L-shaped block 20 is fixedly connected to the bottom surface of the end of the support tube 2 outside the tester body 1. The other end of the L-shaped block 20 is sleeved and fixedly connected to the outer wall of the middle part of the rotating rod 33. The outer walls of both ends of the rotating rod 33 are respectively rotatably connected to the inner walls of one ends of the two rotating blocks 19. The other ends of the two rotating blocks 19 are both fixedly connected to the bottom surface of the side door 3. The side wall of the side door 3 abuts against the side wall of the support tube 2, and the size of the side door 3 is the same as that of the support tube 2. Pull openings 34 are formed through both sides of the support opening 32. One ends of two pull ropes 30 are fixedly connected to the side of the side door 3 close to the support tube 2. The other ends of the two pull ropes 30 respectively penetrate through the two pull openings 34 and are both fixedly connected to the side wall of the moving plate 27.

[0051] More specifically, when the entire device is not in use (i.e., when the pressure vessel is not being tested), the end of the outer connector 29 away from the connecting air pipe 16 is located inside the support opening 32 of the support tube 2, while the other end of the outer connector 29 is located inside the moving cavity 31. At the same time, the rack plate 15 is in a meshed state with the external gear ring 7. And the side door 3 will also, under the traction of the two pull ropes 30 and the action of the rotating block 19, the rotating rod 33, and the L-shaped block 20, block the opening of the support tube 2 (i.e., at the support opening 32). Therefore, the outer connector 29 will be completely in a state of being blocked, protected, and stored. Similarly, at this time, the storage cavity 9 is also completely separated from the external environment, so it will not cause air leakage when the tester body 1 performs a power-on self-check.

[0052] When the self-inspection is completed and it is officially put into use, the drive motor 21 drives the side plate 8 to rotate. At this time, the side plate 8 will drive the outer toothed ring 7 to rotate together. When the outer toothed ring 7 rotates, it will push the rack plate 15 to move horizontally under the action of the slider 14 and the chute 11. When the rack plate 15 moves, it will push the moving plate 27 located inside the moving cavity 31 to move together. When the moving plate 27 moves, it will push the outer connector 29 to move outward towards the outside of the support tube 2. At the same time, the linear distance between the moving plate 27 and the side door 3 becomes shorter after the moving plate 27 moves, and the two pull ropes 30 between the moving plate 27 and the side door 3 become loose. Then, the side door 3 will rotate downward and open under the action of the rotating block 19, the rotating rod 33 and the L-shaped block 20, and will be completely opened when the outer connector 29 moves to the support port 32, thus avoiding hindering the movement of the outer connector 29; afterwards, as the rack plate 15 continues to move, it will push the head of the outer connector 29 to the outside of the support port 32, and at this time, several magnets 28 on the surface of the moving plate 27 will just be attracted to the inner wall of the moving cavity 31. While the magnets 28 are attracted, the rack plate 15 is disengaged from the outer toothed ring 7. Subsequently, as the drive motor 21 continues to start, the outer connector 29 and the connecting air pipe 16 will be continuously pushed outwards. When the appropriate length is extended, it will stop. Then, the outer connector 29 is fixed to the connector of the pressure vessel to be tested, so that the airtightness test can be carried out normally.

[0053] In addition, when the airtightness test is completed, only need to loosen the connection between the outer connector 29 and the pressure vessel, and then control the output shaft of the drive motor 21 to reverse. At this time, the winding shaft 26 reverses, and will gradually wind the connecting air pipe 16 on the surface again to continue the storage; and when one end of the outer connector 29 close to the connecting air pipe 16 is inserted into the support port 32, it will abut against the surface of the moving plate 27 under the continuous winding of the connecting air pipe 16. Subsequently, the pulling force of the winding shaft 26 pulling the outer connector 29 overcomes the suction force between the magnet 28 on the moving plate 27 and the moving cavity 31, so that the moving plate 27 can be pushed back to its original position along the moving cavity 31. After the moving plate 27 is pushed to move a short distance, at this time, the rack plate 15 will mesh with the outer toothed ring 7 again. While the moving plate 27 moves, it will also pull up the side door 3 through the two pull ropes 30, so that the support port 32 of the support tube 2 can be sealed again. Thus, the cycle is completed and waiting for the next startup and use.

[0054] It should be particularly noted here that: a sealing ring is provided at the connection between the side door 3 and the support tube 2. By providing the sealing ring, it is possible to avoid air leakage inside the storage cavity 9 during self-inspection.

[0055] As a preferred embodiment of the present invention, the anti-tangling assembly includes an air inlet / outlet head 17, an inner connector 22, and a sealed bearing 23. One end of the air inlet / outlet head 17 is fixedly connected to the side of the partition plate 18 close to the partition board 12. The outer wall of the other end of the air inlet / outlet head 17 is fixedly connected to the inner ring of the sealed bearing 23. The outer wall of the outer ring of the sealed bearing 23 is fixedly connected to the inner wall of one end of the inner connector 22. The other end of the inner connector 22 is fixedly connected to the end of the connecting air pipe 16 far from the outer connector 29. The air inlet / outlet head 17, the inner connector 22, and the connecting air pipe 16 are internally connected.

[0056] More specifically, when the winding shaft 26 winds the connecting air pipe 16, the winding shaft 26 and the side plate 8 will also rotate together. At this time, by setting the anti-tangling assembly, it is possible to prevent the disconnection between the connecting air pipe 16 and the internal air source of the tester body 1, and at the same time ensure the normal progress of subsequent airtightness tests.

[0057] Specifically, during installation, the connecting air pipe 16 is installed on the sealed bearing 23 through the inner connector 22, and thus an effective connection can be formed between the sealed bearing 23 and the air inlet / outlet head 17. At the same time, relying on the rotatable characteristics of the sealed bearing 23, it can adapt to the shape when the winding shaft 26 and the connecting air pipe 16 rotate, and will not cause the connecting air pipe 16 to be "twisted", thus avoiding the disconnection between the connecting air pipe 16 and the internal air source of the tester body 1.

[0058] As a preferred embodiment of the present invention, a maintenance port 6 communicating with the storage cavity 9 is penetrated and opened on the side of the tester body 1 away from the display screen. A rear door 4 is slidably connected to the inner wall of the maintenance port 6. A plurality of mounting blocks 5 are fixedly connected to the side wall of the rear door 4. The plurality of mounting blocks 5 are all fixedly connected to the tester body 1 by bolts.

[0059] More specifically, by setting the maintenance port 6, the various components inside the storage cavity 9 can be maintained during regular maintenance or when air leakage is detected during self-inspection. By setting the rear door 4 and the mounting blocks 5, the maintenance port 6 can be blocked and sealed, and at the same time it is convenient for disassembly and assembly.

[0060] As a preferred embodiment of the present invention, two anti-loosening pressure rollers 10 are fixedly connected to the inner wall of the partition board 12 close to the support pipe 2 and the rear door 4. The two anti-loosening pressure rollers 10 are respectively located on the upper and lower sides of the connecting air pipe 16, and the side walls of the two anti-loosening pressure rollers 10 are in contact with the outer wall of the connecting air pipe 16.

[0061] More specifically, when the outer connector 29 connecting the trachea tube 16 is separated from the pressure vessel and when the trachea tube 16 is retracted into the storage cavity 9, since the end of the trachea tube 16 located outside the tester body 1 does not have tensile force, in order to prevent the trachea tube 16 from loosening and not being able to fit tightly when wound around the winding shaft 26, at this time, by setting the anti-loosening pressure rollers 10, the clamping force of the two anti-loosening pressure rollers 10 is used to prevent the trachea tube 16 from loosening instantaneously. And because the anti-loosening pressure rollers 10 are in the shape of rollers, when the driving motor 21 controls the winding, there is an external force acting, so the trachea tube 16 can be slowly wound.

[0062] It should be specifically noted here that:

[0063] The trachea tube 16 is a flexible tube with a certain hardness, for example, made of materials such as rubber or silica gel, and the specific material is not limited. The trachea tube 16 can be bent and wound around the surface of the winding shaft 26. At the same time, the trachea tube 16 can also be exactly squeezed and limited by the two anti-loosening pressure rollers 10, so as not to loosen instantaneously.

[0064] Furthermore, because the trachea tube 16 will be squeezed by the two anti-loosening pressure rollers 10 during winding and also when the trachea tube 16 is released, but due to the action of the rack plate 15 and the external tooth ring 7, the outer connector 29 will still move outward for a certain distance until the moving plate 27 moves to the other end of the moving cavity 31 (that is, after the magnet 28 is attracted in the moving cavity 31) and stops. And at this time, even if the trachea tube 16 cannot smoothly slide out by itself, the outer connector 29 can be manually held and pulled outwards.

[0065] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sealing detection device for a pressure vessel, comprising a tester body (1), and a storage cavity (9) is formed inside the tester body (1), characterized in that: The inner wall of the storage cavity (9) is threadedly connected with a partition plate (18), and a partition board (12) is also fixedly connected to the inner wall of the storage cavity (9). The partition board (12) and the partition plate (18) divide the storage cavity (9) into three regions. One side of the partition plate (18) close to the partition board (12) is connected with an anti-twisting component and a power mechanism. One end of the anti-twisting component penetrates through the partition plate (18) and is connected with a connecting air pipe (16). One end of the connecting air pipe (16) is connected with a winding component, and the other end of the connecting air pipe (16) is also fixedly connected with an external connector (29). One end of the external connector (29) is connected with a protective structure. The other end of the protective structure penetrates to the outside of the storage cavity (9). The protective structure is connected with the end of the winding component far from the partition plate (18). The output end of the power mechanism is connected with the end of the winding component close to the partition plate (18). Monitoring sensors (13) are fixedly connected to both sides of the partition board (12); The winding component includes a winding shaft (26) and two side plates (8). The two ends of the winding shaft (26) are respectively fixedly connected to the middle parts of the adjacent sides of the two side plates (8); The protective structure includes a support pipe (2), a pushing component and a closing component. One end of the pushing component is connected with the side plate (8). The other end of the pushing component is connected with the support pipe (2), the external connector (29) and the closing component. The lower end of the closing component is connected with one end of the support pipe (2) located outside the tester body (1); The pushing component includes an external toothed ring (7), a slider (14), a rack plate (15), a moving plate (27) and a plurality of magnets (28). A mutually communicating moving cavity (31) and a support opening (32) are formed inside the support pipe (2). The external toothed ring (7) is sleeved and fixedly connected to the outer wall of the side plate (8) far from the partition board (12). A sliding groove (11) is formed in the top surface of the storage cavity (9). The outer wall of the upper end of the slider (14) is slidably connected with the inner wall of the sliding groove (11). The lower end of the slider (14) is fixedly connected to the upper surface of one end of the rack plate (15). The other end of the rack plate (15) penetrates into the moving cavity (31) and is fixedly connected to the side wall of the moving plate (27). The outer wall of the moving plate (27) is slidably connected with the inner wall of the moving cavity (31). The side of the moving plate (27) far from the rack plate (15) is fixedly connected with a plurality of magnets (28). The side of the moving plate (27) close to the magnets (28) abuts against the side of the external connector (29) close to the connecting air pipe (16), and the side of the moving plate (27) close to the magnets (28) is also connected with the closing component. The outer wall of the connecting air pipe (16) is slidably connected with the inner wall of the support opening (32). The total length of the moving cavity (31) and the support opening (32) is greater than the total length of the external connector (29) and the moving plate (27);The enclosed component includes a side door (3), an L-shaped block (20), a rotating rod (33), two rotating blocks (19) and two pulling ropes (30). One end of the L-shaped block (20) is fixedly connected to the bottom surface of the outer end of the support tube (2) located outside the tester body (1). The other end of the L-shaped block (20) is sleeved and fixedly connected to the outer wall of the middle part of the rotating rod (33). The outer walls of both ends of the rotating rod (33) are respectively rotatably connected to the inner walls of one ends of the two rotating blocks (19). The other ends of the two rotating blocks (19) are both fixedly connected to the bottom surface of the side door (3). The side wall of the side door (3) abuts against the side wall of the support tube (2), and the size of the side door (3) is the same as that of the support tube (2). Pulling openings (34) are respectively formed through both sides of the support opening (32). One ends of the two pulling ropes (30) are fixedly connected to the side of the side door (3) close to the support tube (2). The other ends of the two pulling ropes (30) respectively penetrate through the two pulling openings (34) and are both fixedly connected to the side wall of the moving plate (27).; 2. The sealing detection device for a pressure vessel according to claim 1, characterized in that: The power mechanism includes a transmission motor (21), a gear (25) and an internal gear ring (24). The outer wall of the transmission motor (21) is fixedly connected to one side of the partition plate (18) close to the zoning plate (12). The output shaft of the transmission motor (21) is fixedly connected to the inner wall of the gear (25). The gear (25) meshes with the internal gear ring (24). The side wall of the internal gear ring (24) is connected to the winding assembly.

3. A sealing detection device for a pressure vessel according to claim 2, characterized in that: The outer wall of one of the side plates (8) is rotatably connected to the inner wall of the zoning plate (12). The outer wall of the other side plate (8) is rotatably connected to the inner wall of the storage cavity (9). The side plate (8) rotatably connected to the zoning plate (12) is also fixedly connected to the side wall of the internal gear ring (24). The side plate (8) rotatably connected to the storage cavity (9) is also connected to the protection structure. One end of the connecting air pipe (16) far from the anti-winding assembly penetrates through one of the side plates (8) and is fixedly connected to the outer wall of the winding shaft (26).

4. A sealing detection device for a pressure vessel according to claim 1, characterized in that: The anti-winding assembly includes an air inlet and outlet head (17), an inner connecting head (22) and a sealing bearing (23). One end of the air inlet and outlet head (17) is fixedly connected to one side of the partition plate (18) close to the zoning plate (12). The outer wall of the other end of the air inlet and outlet head (17) is fixedly connected to the inner ring of the sealing bearing (23). The outer wall of the outer ring of the sealing bearing (23) is fixedly connected to the inner wall of one end of the inner connecting head (22). The other end of the inner connecting head (22) is fixedly connected to one end of the connecting air pipe (16) far from the outer connecting head (29). The air inlet and outlet head (17), the inner connecting head (22) and the connecting air pipe (16) are internally connected.

5. The sealing detection device for a pressure vessel according to claim 1, characterized in that: An inspection port (6) communicating with the storage cavity (9) is formed through one side of the tester body (1) far from the display screen. A rear door (4) is slidably connected to the inner wall of the inspection port (6). A plurality of mounting blocks (5) are fixedly connected to the side wall of the rear door (4). A plurality of the mounting blocks (5) are all fastened to the tester body (1) by bolts.

6. The sealing detection device for a pressure vessel according to claim 5, characterized in that: Two anti-loosening pressure rollers (10) are fixedly connected to the inner wall of the zoning plate (12) on one side close to the support pipe (2) and the rear door (4). The two anti-loosening pressure rollers (10) are respectively located on the upper and lower sides of the connecting air pipe (16). The side walls of the two anti-loosening pressure rollers (10) are both abutted against the outer wall of the connecting air pipe (16).

7. The operating method of a sealing detection device for a pressure vessel according to claim 6, characterized in that, Including the following operation steps: Step 1: When airtightness detection of a pressure vessel is required, simply place the tester body (1) in a suitable position first. After inserting the power supply, the tester body (1) can be normally started. Subsequently, during the startup process of the tester body (1), "self-check" will be automatically enabled, that is, the internal air source of the tester body (1) will supply air outward normally. During the air supply process, two monitoring sensors (13) will monitor the air inside the two spaces on both sides of the partition plate (12). Since the anti-twist component is between the partition plate (12) and the partition board (18), and the connecting air pipe (16) and the external connector (29) are on the other side of the partition plate (12), when one of the monitoring sensors (13) detects a change in pressure in the space where it is located, that is, there is a leak in the anti-twist component, the connecting air pipe (16) or the external connector (29) in this area, the signal can be displayed on the display screen of the tester body (1) after startup, thus reminding the maintenance personnel to carry out maintenance; Step 2: If the self-check is passed, the tester body (1) can be normally used to perform airtightness testing on the pressure vessel. Just start the power mechanism through the internal controller of the tester body (1). After the power mechanism starts, the output end can drive the winding component to rotate inside the storage cavity (9) and the partition plate (12). During the rotation of the winding component, not only can the connecting air pipe (16) located inside the winding component be pushed outwards to make it unfold; at the same time, it can also push the protection structure to move a certain distance. After the protection structure moves a short distance, first, it will open the protection and occlusion of the storage cavity (9) by the protection structure, so that the external connector (29) and the connecting air pipe (16) can be exposed from here. And while opening the occlusion, it can also push the external connector (29) and the connecting air pipe (16) outwards for a certain distance to facilitate the operator to pull more conveniently. When the appropriate length is pulled out, the pressure vessel can be normally detected.

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