Sealing detection device for pressure container and operation method

Abstract

The invention relates to the technical field of sealing detection, and discloses a sealing detection device for a pressure vessel and an operation method.The sealing detection device comprises a tester body, a containing cavity is formed in the tester body, the inner wall of the containing cavity is in threaded connection with a partition plate, and the inner wall of the containing cavity is further fixedly connected with a partition plate; the partition plate and the partition plate divide the storage cavity into three areas, the side, close to the partition plate, of the partition plate is connected with an anti-winding assembly and a power mechanism, and one end of the anti-winding assembly penetrates through the partition plate and is connected with a connecting air pipe. According to the sealing detection device for the pressure container and the operation method, the connecting air pipe, the outer connector and other components can be all sealed in the containing cavity, and the two monitoring sensors are matched for data monitoring, so that air supply (or air exhaust) can be performed on the interior of the containing cavity through an air source in the tester body; therefore, the leakage detection device is convenient and fast to use.

Description

Technical Field

[0001] The present invention relates to the technical field of sealing detection, and in particular to a sealing detection device for a pressure vessel and an operating method. Background Art

[0002] A pressure vessel is a closed device used to store gas or liquid and withstand a certain pressure. In order to ensure that the pressure vessel does not leak during operation, thereby ensuring the safe operation of the equipment and preventing environmental pollution, it is often necessary to conduct regular airtightness tests on the pressure vessel.

[0003] The air tightness tester of the prior art can automatically complete the test of the sealing of the pressure vessel to be tested by setting the corresponding instructions on the display screen on the front side according to the situation of the pressure vessel to be tested, and then connecting and fixing the connector at the front end of the test pipe with the connecting pipe of the pressure vessel to be tested. In addition, during the test, it can be known whether the sealing inside the pressure vessel is within the normal range, and the operation is simple and convenient.

[0004] However, the above-mentioned air tightness tester still has the following problems in actual use: The connection between the air tightness tester and the pressure vessel to be tested is usually achieved through the connecting pipe on the back of the tester. However, during the test of the tester, the gas pipeline connection, joints, valves or seals of the tester may be loose, causing gas leakage from here, which will directly affect the test accuracy. The existing tester does not have the function of self-checking the gas pipeline, and the function is relatively single, which is difficult to meet the test requirements of higher accuracy and reliability. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a sealing detection device and an operating method for a pressure vessel, which can perform self-inspection on the tester body in advance before the tester body performs an airtightness test on the pressure vessel, thereby avoiding affecting the accuracy of subsequent tests.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a sealing detection device for a pressure vessel, comprising a tester body, a storage chamber is opened inside the tester body, a partition is threadedly connected to the inner wall of the storage chamber, and a partition plate is also fixedly connected to the inner wall of the storage chamber, the partition plate and the partition divide the storage chamber into three areas, an anti-winding component and a power mechanism are connected to the side of the partition plate close to the partition plate, one end of the anti-winding component passes through the partition and is connected to a connecting air pipe, one end of the connecting air pipe is connected to a winding component, and the other end of the connecting air pipe is also fixedly connected to an external connector, one end of the external connector is connected to a protective structure, the other end of the protective structure passes through the outside of the storage chamber, the protective structure is connected to an end of the winding component away from the partition, the output end of the power mechanism is connected to an end of the winding component close to the partition, and monitoring sensors are fixedly connected to both sides of the partition plate.

[0007] Furthermore, the power mechanism includes a transmission motor, a gear and an inner gear ring. The outer wall of the transmission motor is fixedly connected to the side of the partition plate close to the partition plate, the output shaft of the transmission motor is fixedly connected to the inner wall of the gear, the gear is meshed with the inner gear ring, and the side wall of the inner gear ring is connected to the winding assembly.

[0008] Furthermore, the winding assembly includes a winding shaft and two side plates, and the two ends of the winding shaft are respectively fixedly connected to the middle part of the adjacent side of the two side plates, the outer wall of one side plate 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 storage cavity, and the side plate rotatably connected to the partition plate is also fixedly connected to the side wall of the inner gear ring, and the side plate rotatably connected to the storage cavity is also connected to the protective structure, and the end of the connecting air pipe away from the anti-winding assembly passes through one of the side plates and is fixedly connected to the outer wall of the winding shaft.

[0009] Furthermore, the protective structure includes a support tube, a pushing assembly and a closing assembly, one end of the pushing assembly is connected to the storage chamber and the side panel, the other end of the pushing assembly is connected to the support tube, the external connector and the closing assembly, and the lower end of the closing assembly is connected to one end of the support tube located outside the tester body.

[0010] Furthermore, the pushing component includes an outer gear ring, a slider, a rack plate, a movable plate and a plurality of magnets. A movable cavity and a supporting port that are interconnected are provided inside the support tube. The outer gear ring is sleeved and fixedly connected to the outer wall of the side plate away from the partition plate. A sliding groove is provided 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 passes through the interior of the movable cavity and is fixedly connected to the side wall of the movable plate. The outer wall of the movable plate is slidably connected to the inner wall of the movable cavity. The side of the movable plate away from the rack plate is fixedly connected to the plurality of magnets. The side of the movable plate close to the magnet is abutted against the side of the external connector close to the connecting air pipe, and the side of the movable plate close to the magnet is also connected to the closing component. The outer wall of the connecting air pipe is slidably connected to the inner wall of the supporting port. The total length of the movable cavity and the supporting port is greater than the total length of the external connector and the movable plate.

[0011] Furthermore, the closing assembly 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 support tube at one end outside the tester body, the other end of the L-shaped block is sleeved and fixedly connected to the outer wall in the middle of the rotating rod, the outer walls at both ends of the rotating rod are respectively rotatably connected to the inner walls at one end of the two rotating blocks, the other ends of the two rotating blocks are both fixedly connected to the bottom surface of the side door, the side wall of the side door is abutted against the side wall of the support tube, and the size of the side door is the same as that of the support tube, pull openings are penetrated on both sides of the support opening, the side of the side door close to the support tube is fixedly connected to one end of the two pull ropes, the other ends of the two pull ropes respectively penetrate the two pull openings and are both fixedly connected to the side wall of the movable plate.

[0012] Furthermore, the anti-winding component includes an air inlet and outlet head, an inner connector and a sealed bearing. One end of the air inlet and outlet head is fixedly connected to a side of the partition plate close to the partition plate, the outer wall of the other end of the air inlet and outlet head is fixedly connected to the inner ring of the sealed bearing, the outer wall of the outer ring of the sealed bearing is fixedly connected to the inner wall of one end of the inner connector, the other end of the inner connector is fixedly connected to an end of the connecting air pipe away from the outer connector, and the air inlet and outlet head, the inner connector and the connecting air pipe are internally connected.

[0013] Furthermore, an inspection port connected to the storage cavity is opened through the side of the tester body away from the display screen, the inner wall of the inspection port is slidably connected to a rear door, and the side wall of the rear door is fixedly connected to a plurality of mounting blocks, and the plurality of mounting blocks are fastened to the tester body by bolts.

[0014] Furthermore, two anti-loosening rollers are fixedly connected to the inner wall of the partition plate close to the support tube and the rear door. The two anti-loosening rollers are respectively located on the upper and lower sides of the connecting air pipe, and the side walls of the two anti-loosening rollers are against the outer wall of the connecting air pipe.

[0015] An operating method of a sealing detection device for a pressure vessel comprises the following operating steps: Step 1: When it is necessary to test the air tightness of the pressure vessel, just place the tester body in a suitable position first, and then plug in the power supply to start the tester body normally. Then the tester body will automatically start the "self-test" during the startup process, that is, the internal gas source of the tester body will supply gas to the outside normally, and in the process of gas supply, the two monitoring sensors will monitor the air inside the two spaces on both sides of the partition plate. Because the anti-winding component is between the partition plate and the partition, and the connecting air pipe and the external connector are located on the other side of the partition plate, when one of the monitoring sensors detects that the pressure in the space has changed, that is, the anti-winding component, connecting air pipe or external connector inside the area with the edge is leaking, the signal can be displayed on the display screen of the tester body after startup, thereby reminding the maintenance personnel to perform maintenance.

[0016] Step 2: If the self-test passes, the tester body can be used normally to test the air tightness of the pressure vessel. Simply turn on the power mechanism through the controller inside the tester body. After the power mechanism is started, the output end can rotate the winding assembly inside the storage cavity and the partition plate. During the rotation of the winding assembly, not only can the connecting air pipe inside the winding assembly be pushed outward to unfold it, but also the protective structure can be pushed to move a certain distance. After the protective structure moves a short distance, the protective shielding of the protective structure to the storage cavity will be opened first, so that the external connector and the connecting air pipe can be exposed from here. While opening the shielding, the external connector and the connecting air pipe can also be pushed outward for a certain distance to facilitate the operator to pull more conveniently. When the appropriate length is pulled out, the pressure vessel can be tested normally.

[0017] Compared with the prior art, the present invention has the following beneficial effects: 1. This kind of pressure vessel sealing detection device can seal all the connecting air pipes and external connectors in the storage cavity by setting a protective structure on the side of the tester body away from the display screen, and cooperate with the data monitoring of two monitoring sensors to supply air (or exhaust air) to the storage cavity through the internal air source of the tester body, and then self-check whether there is leakage, which is convenient and quick; 2. This kind of sealing detection device for pressure vessels, by arranging a power mechanism and a storage assembly inside the storage chamber, can automatically retract the connecting air pipe into the storage chamber when the pressure vessel needs to be tested using the connecting air pipe or after the test is completed, which is convenient and trouble-free; 3. The sealing detection device for pressure vessels can ensure that the connecting air pipe and the tester body always maintain effective connectivity by arranging an anti-winding component between the connecting air pipe and the internal air source of the tester body, and can also prevent the connecting air pipe and the winding component from being "twisted" when the connecting air pipe follows the winding component to rotate and wind, thereby causing the connecting air pipe to be separated from the internal air source of the tester body; 4. This type of sealing detection device for pressure vessels can isolate and seal the entire storage cavity in the closing component by dividing the protective structure into a support tube, a pushing component and a closing component. When detection is required, the connecting air pipe and the external connecting head can be automatically pushed out from the inside of the support tube as the power mechanism is started. When the connecting air pipe and the external connecting head are pushed out, the sealing of the supporting tube opening by the closing component is automatically opened. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall appearance of the present invention; Figure 2 This is a schematic diagram of the overall appearance of the present invention from another viewing angle; Figure 3 The present invention is based on Figure 2 A partial explosion diagram of Figure 4 It is a partial cross-sectional schematic diagram of the tester body of the present invention; Figure 5 For the present invention Figure 4 The enlarged schematic diagram of point A in the middle; Figure 6 For the present invention Figure 4 A schematic diagram of each component from another perspective; Figure 7 It is a schematic diagram of the internal structure of the tester body of the present invention; Figure 8 It is a detailed connection diagram of the partition plate, storage assembly and protection structure of the present invention; Fig. 9 For the present invention Figure 7 Schematic diagram of each component from another perspective; Fig.10 It is a detailed connection diagram of the storage assembly and the power mechanism of the present invention; Fig.11 It is an exploded schematic diagram of the connection of the air pipe, the external connector and the protective structure of the present invention.

[0019] In the figure: 1. Tester body; 2. Support tube; 3. Side door; 4. Rear door; 5. Mounting block; 6. Inspection port; 7. External gear ring; 8. Side panel; 9. Storage chamber; 10. Anti-loosening roller; 11. Slide; 12. Partition plate; 13. Monitoring sensor; 14. Slider; 15. Rack plate; 16. Air pipe connection; 17. Air inlet and outlet heads; 18. Partition plate; 19. Rotating block; 20. L-shaped block; 21. Transmission motor; 22. Internal connector; 23. Sealed bearing; 24. Internal gear ring; 25. Gear; 26. Winding shaft; 27. Moving plate; 28. Magnet; 29. ​​External connector; 30. Pull rope; 31. Moving chamber; 32. Support port; 33. Rotating rod; 34. Pull port. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0021] See also Figure 1-Figure 11 A sealing detection device for a pressure vessel includes a tester body, a storage chamber 9 is opened inside the tester body 1, a partition plate 18 is threadedly connected to the inner wall of the storage chamber 9, and a partition plate 12 is also fixedly connected to the inner wall of the storage chamber 9, the partition plate 12 and the partition plate 18 divide the storage chamber 9 into three areas, the partition plate 18 is connected to an anti-winding component and a power mechanism on the side close to the partition plate 12, one end of the anti-winding component passes through the partition plate 18 and is connected to a connecting air pipe 16, one end of the connecting air pipe 16 is connected to a winding component, and the other end of the connecting air pipe 16 is also fixedly connected to an external connector 29, one end of the external connector 29 is connected to a protective structure, the other end of the protective structure passes through the outside of the storage chamber 9, the protective structure is connected to an end of the winding component away from the partition plate 18, the output end of the power mechanism is connected to an end of the winding component close to the partition plate 18, and monitoring sensors 13 are fixedly connected to both sides of the partition plate 12.

[0022] like Figures 1 to 11 As shown, the sealing detection device for a pressure vessel in the present invention comprises the following operating steps: Step 1: When it is necessary to perform an air tightness test on the pressure vessel, just place the tester body 1 in a suitable position first, and then plug in the power supply to start the tester body 1 normally. Then the tester body 1 will automatically start the "self-test" during the startup process, that is, the internal gas source of the tester body 1 will supply gas to the outside normally, and in the process of gas supply, the two spaces on both sides of the partition plate 12 are monitored by two monitoring sensors 13. Because the anti-winding component is between the partition plate 12 and the partition 18, and the connecting air pipe 16 and the external connector 29 are located on the other side of the partition plate 12, when one of the monitoring sensors 13 detects that the pressure in the space has changed, the anti-winding component, the connecting air pipe 16 or the external connector 29 in the area is leaking, and the signal can be displayed on the display screen of the tester body 1 after startup, thereby reminding the maintenance personnel to perform maintenance.

[0023] Step 2: If the self-test passes, the tester body 1 can be used normally to perform an air tightness test on the pressure vessel. The power mechanism is turned on by the internal controller of the tester body 1. After the power mechanism is started, the output end can rotate with the winding component inside the storage chamber 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 outward to unfold it, but also the protective structure can be pushed to move a certain distance. After the protective structure moves a short distance, the protective shielding of the protective structure to the storage chamber 9 will be opened first, so that the external connector 29 and the connecting air pipe 16 can be exposed from here, and while opening the shielding, the external connector 29 and the connecting air pipe 16 can be pushed outward 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 tested normally.

[0024] Special mention should be made here: The monitoring sensor 13 may be a gas sensor, a vacuum gauge or other sensors with equivalent functions commonly used in the market, without specific limitation.

[0025] As a preferred solution of the present invention, the power mechanism includes a transmission motor 21, a gear 25 and an inner gear ring 24. The outer wall of the transmission motor 21 is fixedly connected to the side of the partition 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 is meshed with the inner gear ring 24, and the side wall of the inner gear ring 24 is connected to the winding assembly.

[0026] More specifically, when it is necessary to control the reeling of the connecting air pipe 16, it is only necessary to turn on the transmission motor 21 through the internal controller of the tester body 1. After the transmission motor 21 is started, the output shaft drives the gear 25 to rotate, and then the gear 25 drives the inner gear ring 24 to rotate, and then the inner gear ring 24 can drive the reeling assembly to rotate, so that the connecting air pipe 16 can be wound around the reeling assembly, thereby preventing the connecting air pipe 16 from remaining outside the tester body 1, which is not only easy to be damaged but also appears messy. At the same time, it can also prevent the inside of the storage cavity 9 from being kept in a sealed state during the self-inspection of the tester body 1.

[0027] In addition, when it is necessary to perform an airtightness test on the pressure vessel, it is only necessary to control the output shaft of the transmission motor 21 to rotate in the opposite direction. When winding, as the connecting air pipe 16 is wound larger and larger, it is necessary to change the rotation speed of the transmission motor 21. This is a mature technology in existing motors, so it will not be described in detail here.

[0028] As a preferred solution of the present invention, the winding assembly includes a winding shaft 26 and two side panels 8, and the two ends of the winding shaft 26 are respectively fixedly connected to the middle of the adjacent sides of the two side panels 8, the outer wall of one of the side panels 8 is rotatably connected to the inner wall of the partition plate 12, and the outer wall of the other side panel 8 is rotatably connected to the inner wall of the storage chamber 9, and the side plate 8 rotatably connected to the partition plate 12 is also fixedly connected to the side wall of the inner gear ring 24, and the side plate 8 rotatably connected to the storage chamber 9 is also connected to the protective structure, and the end of the connecting air pipe 16 away from the anti-winding assembly passes through one of the side panels 8 and is fixedly connected to the outer wall of the winding shaft 26.

[0029] More specifically, when the inner gear ring 24 rotates, the side plate 8 connected to the inner gear ring 24 can rotate coaxially together, and will rotate with the winding shaft 26 and the other side plate 8. 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. Moreover, 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 or right.

[0030] As a preferred solution of the present invention, the protective structure includes a support tube 2, a pushing assembly and a closing assembly, one end of the pushing assembly is connected to the storage cavity 9 and the side plate 8, the other end of the pushing assembly is connected to the support tube 2, the external connecting head 29 and the closing assembly, and the lower end of the closing assembly is connected to one end of the support tube 2 located outside the tester body 1.

[0031] The pushing assembly includes an outer gear ring 7, a slider 14, a rack plate 15, a moving plate 27 and a plurality of magnets 28. The support tube 2 is provided with a moving cavity 31 and a supporting port 32 which are interconnected. The outer gear ring 7 is sleeved and fixedly connected to the outer wall of the side plate 8 away from the partition plate 12. A slide groove 11 is provided 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 slide 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 interior of the moving cavity 31 and is connected to the moving plate 11. The side wall of the movable plate 27 is fixedly connected, the outer wall of the movable plate 27 is slidably connected to the inner wall of the movable cavity 31, the side of the movable plate 27 away from the rack plate 15 is fixedly connected to a plurality of magnets 28, the side of the movable plate 27 close to the magnet 28 is abutted against the side of the external connector 29 close to the connecting air pipe 16, and the side of the movable plate 27 close to the magnet 28 is also connected to the closing component, the outer wall of the connecting air pipe 16 is slidably connected to the inner wall of the supporting port 32, and the total length of the movable cavity 31 and the supporting port 32 is greater than the total length of the external connector 29 and the movable plate 27.

[0032] 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 support tube 2 at one end outside the tester body 1, and the other end of the L-shaped block 20 is sleeved and fixedly connected to the outer wall in the middle of the rotating rod 33. The outer walls at both ends of the rotating rod 33 are respectively rotatably connected to the inner walls at one end 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 walls of the side door 3 are abutted against the side walls 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 opened on both sides of the support opening 32. The side of the side door 3 close to the support tube 2 is fixedly connected to one end of the two pull ropes 30. The other ends of the two pull ropes 30 respectively pass through the two pull openings 34 and are both fixedly connected to the side walls of the movable plate 27.

[0033] More specifically, when the entire device is not in use (i.e., when the pressure vessel is not being tested), the end of the external connector 29 away from the connecting air pipe 16 is located inside the support port 32 of the support tube 2, and the other end of the external connector 29 is located inside the movable cavity 31. At the same time, the rack plate 15 is in meshing with the external gear ring 7, and the side door 3 will also block the opening of the support tube 2 (i.e., the support port 32) due to the traction of the two pull ropes 30, as well as the action of the rotating block 19, the rotating rod 33 and the L-shaped block 20. Therefore, the external connector 29 will be completely in a state of shielding, protection and storage. Similarly, the storage cavity 9 is also completely isolated from the external environment at this time, so there will be no leakage when the tester body 1 is powered on for self-test.

[0034] When the self-inspection is completed and the vehicle is officially put into use, the transmission motor 21 rotates the side plate 8, and the side plate 8 rotates with the outer gear ring 7. When the outer gear ring 7 rotates, it pushes the rack plate 15 to move laterally under the action of the slider 14 and the slide groove 11. When the rack plate 15 moves, it pushes the moving plate 27 located inside the moving cavity 31 to move together. When the moving plate 27 moves, it pushes the external connector 29 to move toward the outside of the support tube 2. At the same time, the straight-line 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, so that the side door 3 rotates downward under the action of the rotating block 19, the rotating rod 33 and the L-shaped block 20. Open, and when the external connector 29 moves to the support opening 32, the side door 3 is fully opened to avoid hindering the movement of the external connector 29; then as the rack plate 15 continues to move, the head of the external connector 29 will be pushed to the outside of the support opening 32, and at this time, the several magnets 28 on the surface of the moving plate 27 will be just sucked on the inner wall of the moving cavity 31, and while the magnets 28 are sucked, the rack plate 15 and the external gear ring 7 are separated, and then as the transmission motor 21 continues to start, the external connector 29 and the connecting air pipe 16 will continue to be pushed outward, and stop when they are extended to a suitable length, and then the external connector 29 is fixed to the connector of the pressure vessel to be tested, so that the air tightness test can be carried out normally.

[0035] In addition, when the air tightness test is completed, it is only necessary to loosen the connection between the external connector 29 and the pressure vessel, and then control the output shaft of the transmission motor 21 to reverse. At this time, the reel 26 reverses, and the connecting air pipe 16 will be gradually wound around the surface again to continue to complete the storage; and, when the end of the external connector 29 close to the connecting air pipe 16 is inserted into the support port 32, it will be against the surface of the movable plate 27 under the continued winding of the connecting air pipe 16, and then the reel 26 pulls the pulling force of the external connector 29 to overcome the suction force of the magnet 28 on the movable plate 27 and the movable cavity 31, so that the movable plate 27 can be pushed back to its original position along the movable cavity 31, and after the movable plate 27 is pushed and moved a short distance, the rack plate 15 will mesh with the external gear ring 7 again, and while the movable plate 27 moves, the side door 3 will be pulled upward by two pull ropes 30, so that the support port 32 of the support tube 2 can be continued to be sealed, and the cycle is completed, waiting for the next startup and use.

[0036] It should be noted that a sealing ring is provided at the connection between the side door 3 and the support tube 2 , and the sealing ring can be provided to avoid air leakage inside the storage chamber 9 during self-inspection.

[0037] As a preferred embodiment of the present invention, the anti-winding component includes an air inlet and outlet head 17, an inner connector 22 and a sealed bearing 23, one end of the air inlet and outlet head 17 is fixedly connected to the side of the partition 18 close to the partition 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 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 away from the outer connector 29, and the air inlet and outlet head 17, the inner connector 22 and the connecting air pipe 16 are internally connected.

[0038] More specifically, because the winding shaft 26 and the side plate 8 will also rotate together when winding around the connecting air pipe 16, an anti-winding component can be provided to prevent the connecting air pipe 16 from being separated from the internal air source of the tester body 1, while ensuring that subsequent air tightness tests are carried out normally.

[0039] Specifically, during installation, the connecting air pipe 16 is installed on the sealing bearing 23 through the internal connecting head 22, and then an effective connection can be formed between the sealing bearing 23 and the air inlet and outlet head 17. At the same time, relying on the rotatable characteristics of the sealing bearing 23, it can adapt to the shape of the winding shaft 26 and the connecting air pipe 16 when rotating, so as not to cause the connecting air pipe 16 to be "twisted", thereby causing the connecting air pipe 16 to be separated from the internal air source of the tester body 1.

[0040] As a preferred solution of the present invention, an inspection port 6 connected to the storage cavity 9 is provided on the side of the tester body 1 away from the display screen, the inner wall of the inspection port 6 is slidably connected to the rear door 4, the side wall of the rear door 4 is fixedly connected to a plurality of mounting blocks 5, and the plurality of mounting blocks 5 are fastened to the tester body 1 by bolts.

[0041] More specifically, by providing the inspection port 6, the various components inside the storage chamber 9 can be inspected during regular inspection or when a leak is detected by self-inspection. By providing the rear door 4 and the mounting block 5, the inspection port 6 can be shielded and sealed, and disassembly and assembly are convenient.

[0042] As a preferred solution of the present invention, two anti-loosening pressure rollers 10 are fixedly connected to the inner wall of the partition plate 12 close to the support tube 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 both against the outer wall of the connecting air pipe 16.

[0043] More specifically, when the external connector 29 of the connecting air pipe 16 is separated from the pressure vessel, and in the process of retracting the connecting air pipe 16 into the storage chamber 9, because the end of the connecting air pipe 16 located outside the tester body 1 does not have pulling force, in order to prevent the connecting air pipe 16 from loosening and causing it to not fit tightly when wound on the winding shaft 26, an anti-loosening pressure roller 10 is provided at this time. The clamping force of the two anti-loosening pressure rollers 10 can prevent the connecting air pipe 16 from being loosened instantly, and because the anti-loosening pressure roller 10 is roller-shaped, when the transmission motor 21 controls the winding, there is an external force, so the connecting air pipe 16 can be slowly wound up.

[0044] Special mention should be made here: The connecting air pipe 16 is a hose with a certain hardness, for example, made of rubber or silicone, etc., without specific limitation, so that the connecting air pipe 16 can be bent and wrapped around the surface of the winding shaft 26. At the same time, the connecting air pipe 16 can be squeezed and limited by the two anti-loosening rollers 10, so as not to loosen instantly.

[0045] Furthermore, because the connecting air pipe 16 will be squeezed by the two anti-loosening pressure rollers 10 when it is rolled up, and will also be squeezed by the two anti-loosening pressure rollers 10 when it is released, but because of the action of the rack plate 15 and the outer gear ring 7, the external connecting head 29 will still move outward for a distance until the moving plate 27 moves to the other end of the moving cavity 31 (that is, after the magnet 28 is sucked into the moving cavity 31) and stops. At this time, even if the connecting air pipe 16 cannot slide out smoothly by itself, the external connecting head 29 can be manually held and pulled out.

[0046] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sealing detection device for a pressure vessel, comprising a tester body (1), wherein a receiving cavity (9) is provided inside the tester body (1), and wherein: The inner wall of the storage chamber (9) is threadedly connected to a partition plate (18), and the inner wall of the storage chamber (9) is also fixedly connected to a partition plate (12), the partition plate (12) and the partition plate (18) divide the storage chamber (9) into three areas, the side of the partition plate (18) close to the partition plate (12) is connected to an anti-winding component and a power mechanism, one end of the anti-winding component passes through the partition plate (18) and is connected to a connecting air pipe (16), one end of the connecting air pipe (16) is connected to a winding component, and the other end of the connecting air pipe (16) is also fixedly connected to an external connector (29), one end of the external connector (29) is connected to a protective structure, the other end of the protective structure passes through the outside of the storage chamber (9), the protective structure is connected to an end of the winding component away from the partition plate (18), the output end of the power mechanism is connected to an end of the winding component close to the partition plate (18), and both sides of the partition plate (12) are fixedly connected to monitoring sensors (13).

2. A seal detection device for a pressure vessel according to claim 1, characterized in that: The power mechanism comprises a transmission motor (21), a gear (25) and an inner gear ring (24); the outer wall of the transmission motor (21) is fixedly connected to a side of the partition plate (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) is meshed with the inner gear ring (24); and the side wall of the inner gear ring (24) is connected to a winding assembly.

3. A seal detection device for a pressure vessel according to claim 2, characterized in that: The winding assembly comprises a winding shaft (26) and two side plates (8), the two ends of the winding shaft (26) are respectively fixedly connected to the middle 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), the outer wall of the other side plate (8) is rotatably connected to the inner wall of the storage chamber (9), and the side plate (8) rotatably connected to the partition plate (12) is also fixedly connected to the side wall of the inner gear ring (24), and the side plate (8) rotatably connected to the storage chamber (9) is also connected to the protective structure, and the end of the connecting air pipe (16) away from the anti-winding assembly passes through one of the side plates (8) and is fixedly connected to the outer wall of the winding shaft (26).

4. A seal detection device for a pressure vessel according to claim 3, characterized in that: The protective structure comprises a support tube (2), a pushing component and a closing component, one end of the pushing component is connected to the side plate (8), the other end of the pushing component is connected to the support tube (2), the external connector (29) and the closing component, and the lower end of the closing component is connected to an end of the support tube (2) located outside the tester body (1).

5. A seal detection device for a pressure vessel according to claim 4, characterized in that: The pushing assembly comprises an outer gear ring (7), a slider (14), a rack plate (15), a moving plate (27) and a plurality of magnets (28); the support tube (2) is provided with a moving cavity (31) and a supporting opening (32) which are interconnected; the outer gear ring (7) is sleeved on and fixedly connected to the outer wall of the side plate (8) away from the partition plate (12); the top surface of the storage cavity (9) is provided with a slide groove (11); the outer wall of the upper end of the slider (14) is slidably connected to the inner wall of the slide 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 connected to the moving cavity (31). The side wall of the movable plate (27) is fixedly connected, the outer wall of the movable plate (27) is slidably connected to the inner wall of the movable cavity (31), the side of the movable plate (27) away from the rack plate (15) is fixedly connected to the plurality of magnets (28), the side of the movable plate (27) close to the magnet (28) abuts against the side of the external connector (29) close to the connecting air pipe (16), and the side of the movable plate (27) close to the magnet (28) is also connected to the sealing component, the outer wall of the connecting air pipe (16) is slidably connected to the inner wall of the supporting opening (32), and the total length of the movable cavity (31) and the supporting opening (32) is greater than the total length of the external connector (29) and the movable plate (27).

6. A seal detection device for a pressure vessel according to claim 5, characterized in that: The closure assembly comprises 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) being fixedly connected to the bottom surface of the support tube (2) at one end outside the tester body (1), the other end of the L-shaped block (20) being sleeved and fixedly connected to the outer wall of the middle part of the rotating rod (33), the outer walls at both ends of the rotating rod (33) being rotatably connected to the inner walls at one end of the two rotating blocks (19), and the two rotating blocks (19) being rotatably connected to the inner walls at one end of the two rotating blocks (19). ) are 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), and both sides of the support opening (32) are penetrated by a pull opening (34), and the side of the side door (3) close to the support tube (2) is fixedly connected to one end of two pull ropes (30), and the other ends of the two pull ropes (30) respectively penetrate the two pull openings (34) and are fixedly connected to the side wall of the movable plate (27).

7. A seal detection device for a pressure vessel according to claim 1, characterized in that: The anti-winding component comprises an air inlet and outlet head (17), an inner connecting head (22) and a sealed bearing (23); one end of the air inlet and outlet head (17) is fixedly connected to a side of the partition plate (18) close to the partition 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 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 connecting head (22); the other end of the inner connecting head (22) is fixedly connected to an end of the connecting air pipe (16) away from the outer connecting head (29); and the air inlet and outlet head (17), the inner connecting head (22) and the connecting air pipe (16) are internally connected.

8. A seal detection device for a pressure vessel according to claim 4, characterized in that: A maintenance opening (6) communicating with the storage chamber (9) is provided through a side of the tester body (1) away from the display screen, the inner wall of the maintenance opening (6) is slidably connected to a rear door (4), and the side wall of the rear door (4) is fixedly connected to a plurality of mounting blocks (5), and the plurality of mounting blocks (5) are all fastened to the tester body (1) by bolts.

9. A seal detection device for a pressure vessel according to claim 8, characterized in that: Two anti-loosening pressure rollers (10) are fixedly connected to the inner wall of the partition plate (12) on one side close to the support tube (2) and the rear door (4), and 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 both in contact with the outer wall of the connecting air pipe (16).

10. The operating method of the pressure vessel sealing detection device according to claim 9, characterized in that: The steps are as follows: Step 1: When it is necessary to perform air tightness test on the pressure vessel, the tester body (1) only needs to be placed in a suitable position, and then the power supply is plugged in, and the tester body (1) can be started normally. Then, during the startup process, the tester body (1) will automatically start "self-test", that is, the internal gas source of the tester body (1) will normally supply gas to the outside, and during the gas supply process, the two monitoring sensors (13) monitor the air inside the two spaces on both sides of the partition plate (12). Because the anti-winding component is between the partition plate (12) and the partition plate (18), and the connecting air pipe (16) and the external connector (29) are located on the other side of the partition plate (12), when one of the monitoring sensors (13) detects that the pressure in the space is changed, that is, the anti-winding component, the connecting air pipe (16) or the external connector (29) inside the area is leaking, the signal can be displayed on the display screen of the tester body (1) after startup, thereby reminding the maintenance personnel to perform maintenance; Step 2: If the self-test passes, the tester body (1) can be used normally to perform an airtightness test on the pressure vessel. It is only necessary to start the power mechanism through the internal controller of the tester body (1). After the power mechanism is started, the output end can rotate with the winding assembly inside the storage chamber (9) and the partition plate (12). During the rotation of the winding assembly, not only can the connecting air pipe (16) located inside the winding assembly be pushed outward to unfold it, but also the protective structure can be pushed to move a certain distance. After the protective structure moves a short distance, the protective shielding of the protective structure on the storage chamber (9) will be opened first, so that the external connector (29) and the connecting air pipe (16) can be exposed from here. At the same time, the external connector (29) and the connecting air pipe (16) can be pushed outward for a certain distance to facilitate the operator to pull them more conveniently. When the appropriate length is pulled out, the pressure vessel can be tested normally.

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