Pressure vessel nondestructive testing device with positioning structure
By designing a non-destructive testing device for pressure vessels with a positioning structure, and using a motor-driven threaded rod and rotating rod combined with a clamping assembly to fix the pressure vessel, the offset problem during pressure vessel testing was solved, achieving full coverage testing and improving testing accuracy.
Patent Information
- Application Number
- CN202423174072.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-23
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2034-12-23
AI Technical Summary
Pressure vessels are prone to movement during testing, which can cause overall displacement, affecting testing accuracy and leading to missed detections in certain areas.
A pressure vessel non-destructive testing device with a positioning structure was designed. It uses components such as a placement plate, rubber pad, connecting plate, sliding rod, hollow column, connecting block and rotating plate to fix the pressure vessel by clamping it. Combined with a motor-driven threaded rod and rotating rod, it can achieve stable testing of the pressure vessel.
It effectively prevents pressure vessels from shifting during the testing process, ensures that all parts are covered by the testing probe, avoids local missed detections, and improves testing accuracy.
Smart Images

Figure CN223940828U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of pressure vessel testing technology, specifically a pressure vessel non-destructive testing device with a positioning structure. Background Technology
[0002] A pressure vessel is a sealed device that holds gas or liquid under pressure. Pressure vessels have a wide range of applications and play an important role in many sectors, including industry, civil use, military industry, and scientific research.
[0003] During the production of pressure vessels, it is necessary to use a detection probe to examine the surface of the vessel to detect whether there are cracks. This method does not damage the vessel. However, since most pressure vessels are currently designed as cylinders, they are prone to movement during inspection, which can cause the vessel to shift and result in some parts of the vessel being missed, thus affecting the accuracy of the final inspection. Utility Model Content
[0004] To overcome the above-mentioned defects, this utility model provides a pressure vessel non-destructive testing device with a positioning structure, which solves the problem that the pressure vessel is prone to movement during testing, causing the entire vessel to shift, resulting in partial missed detection and affecting the final testing accuracy.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a pressure vessel non-destructive testing device with a positioning structure, comprising a base, anti-slip pads connected to the four corners of the base, a fixed frame connected to the base, a fixed plate connected to the top of the base, a hollow column connected to the base, a support plate connected to the base, a first mounting plate connected to one side of the fixed frame, a first motor mounted on the first mounting plate, a threaded rod connected to the output shaft of the first motor, a movable plate mounted on the threaded rod, a threaded sleeve mounted on the movable plate, and a detection probe mounted below the movable plate.
[0006] A connecting rod is connected to the fixed plate, a rotating plate is rotatably connected to the connecting rod, a rubber block is rotatably connected above the rotating plate, a sliding rod is slidably connected inside the hollow column, a placement plate is connected to one end of the sliding rod, a connecting plate is connected between the two placement plates, a connecting block is connected below the placement plate, a second mounting plate is connected to one side of the support plate, a second motor is mounted on the second mounting plate, a rotating rod is connected to the output shaft of the second motor, and a rotating block is connected to the rotating rod.
[0007] As a further embodiment of this utility model: the fixed frame is connected to a guide rod, and there are two guide rods respectively arranged on both sides of the threaded rod, and the two ends of the movable plate slide on the guide rods.
[0008] As a further embodiment of this utility model: the rotating plate is V-shaped in general, and torsion springs are connected to both sides of the rotating plate. One end of the torsion spring is connected to the fixed plate, and one side of the connecting block is provided with an inclined surface that contacts the bottom of the rotating plate.
[0009] As a further embodiment of this utility model: the upper part of the placement plate is arc-shaped and connected with a rubber pad, and buffer springs are connected to both sides of the placement plate, with one end of the buffer spring connected to a hollow column.
[0010] As a further embodiment of this utility model: a limiting groove is formed on the hollow column, a limiting block is connected to the sliding rod, and the limiting block slides within the limiting groove.
[0011] As a further embodiment of this utility model: a roller is rotatably connected to the connecting plate, the rotating rod and the rotating block are arranged together between the two connecting plates, and anti-slip texture is provided under the anti-slip pad.
[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. The pressure vessel non-destructive testing device with positioning structure is configured with a placement plate, rubber pad, connecting plate, sliding rod, hollow column, connecting block, rotating plate and torsion spring. By placing the pressure vessel on the placement plate and connecting plate, the placement plate will push the sliding rod downward due to the weight of the pressure vessel, so that the sliding rod slides in the hollow column. At the same time as the placement plate moves down, the connecting block will push the rotating plate through the inclined surface, so that the rotating plate rotates around the connecting rod as the center and twists the torsion spring, so that the rubber block on the rotating plate contacts the two ends of the pressure vessel. Thus, the pressure vessel is clamped by the two rotating plates and positioned on the base to prevent the pressure vessel from moving or shifting.
[0013] 2. This pressure vessel non-destructive testing device with a positioning structure comprises a first motor, a threaded rod, a moving plate, a detection probe, a second motor, a rotating rod, and a rotating block. The first motor rotates the threaded rod, causing the moving plate to move along the threaded rod via a threaded sleeve. This allows the detection probe to illuminate the surface of the pressure vessel, completing the testing. During testing, the second motor rotates the rotating rod, causing it to drive the rotating block to rotate. This causes the rotating block to push the pressure vessel, allowing it to roll on the connecting plate. This ensures that all parts of the pressure vessel can be detected by the detection probe, avoiding missed areas. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the three-dimensional structure of this utility model.
[0015] Figure 2 This is a schematic diagram of the cross-sectional structure of the fixing plate of this utility model.
[0016] Figure 3 This is a schematic diagram of the cross-sectional structure of the hollow column of this utility model.
[0017] Figure 4 This is a schematic diagram of the connection structure between the rotating rod and the rotating block of this utility model.
[0018] In the diagram: 1. Base; 2. Anti-slip pad; 3. Fixing frame; 4. Fixing plate; 5. Hollow column; 6. Support plate; 7. First mounting plate; 8. First motor; 9. Threaded rod; 10. Moving plate; 11. Threaded sleeve; 12. Detection probe; 13. Guide rod; 14. Connecting rod; 15. Rotating plate; 16. Rubber block; 17. Torsion spring; 18. Sliding rod; 19. Placement plate; 20. Connecting plate; 21. Rubber pad; 22. Buffer spring; 23. Connecting block; 24. Roller; 25. Limiting groove; 26. Limiting block; 27. Second mounting plate; 28. Second motor; 29. Rotating rod; 30. Rotating block. Detailed Implementation
[0019] The technical solution of this patent will be further described in detail below with reference to specific embodiments.
[0020] like Figure 1-4 As shown, this utility model provides a technical solution: a pressure vessel non-destructive testing device with a positioning structure, including a base 1, anti-slip pads 2 connected to the four corners below the base 1, a fixed frame 3 connected to the base 1, a fixed plate 4 connected to the top of the base 1, a hollow column 5 connected to the base 1, a support plate 6 connected to the base 1, a first mounting plate 7 connected to one side of the fixed frame 3, a first motor 8 mounted on the first mounting plate 7, a threaded rod 9 connected to the output shaft of the first motor 8, and guide rods 13 connected to the fixed frame 3. There are two guide rods 13 respectively arranged on both sides of the threaded rod 9. The two ends of the moving plate 10 slide on the guide rods 13. The movement of the moving plate 10 is guided and restricted by the guide rods 13 to prevent the moving plate 10 from rotating with the threaded rod 9, so that the moving plate 10 can move smoothly.
[0021] A movable plate 10 is installed on the threaded rod 9, and a threaded sleeve 11 is installed on the movable plate 10. A detection probe 12 is installed below the movable plate 10. A connecting rod 14 is connected to the fixed plate 4, and a rotating plate 15 is rotatably connected to the connecting rod 14. The rotating plate 15 is V-shaped, and torsion springs 17 are connected to both sides of the rotating plate 15. One end of the torsion spring 17 is connected to the fixed plate 4. One side of the connecting block 23 has an inclined surface that contacts the bottom of the rotating plate 15. When the rotating plate 15 rotates, it will twist the torsion spring 17. When the pressure vessel is removed, the torsion spring 17 rotates back to rotate the rotating plate 15, so that the rotating plate 15 returns to its initial state and releases the vessel, thus making it convenient for the staff to unload the pressure vessel.
[0022] A rubber block 16 is rotatably connected above the rotating plate 15, and a sliding rod 18 is slidably connected inside the hollow column 5. A limit groove 25 is opened on the hollow column 5, and a limit block 26 is connected to the sliding rod 18. The limit block 26 slides in the limit groove 25. By sliding the limit block 26 in the limit groove 25, the descent distance of the sliding rod 18 is limited. The rubber block 16 can buffer the contact between the rotating plate 15 and the pressure vessel, and prevent the rotating plate 15 from impacting and damaging the pressure vessel.
[0023] One end of the sliding rod 18 is connected to a placement plate 19, and a connecting plate 20 is connected between the two placement plates 19. The upper part of the placement plate 19 is arc-shaped and connected to a rubber pad 21. Buffer springs 22 are connected to both sides of the placement plate 19. One end of the buffer spring 22 is connected to the hollow column 5. When the placement plate 19 moves down, it will compress the buffer spring 22, thereby buffering the weight of the pressure vessel and preventing the sudden increase in weight from damaging the sliding rod 18 and the hollow column 5.
[0024] A connecting block 23 is connected below the placement plate 19. A second mounting plate 27 is connected to one side of the support plate 6. A second motor 28 is mounted on the second mounting plate 27. A rotating rod 29 is connected to the output shaft of the second motor 28. A rotating block 30 is connected to the rotating rod 29. A roller 24 is rotatably connected to the connecting plate 20. The rotating rod 29 and the rotating block 30 are set together between the two connecting plates 20. Anti-slip texture is provided under the anti-slip pad 2. When the pressure vessel rolls, the roller 24 will rotate together to assist the container in rolling. The anti-slip pad 2 increases the friction with the ground, thereby preventing the base 1 from sliding during operation.
[0025] The working principle of this utility model is as follows: The pressure vessel is placed on the placement plate 19 and the connecting plate 20. As the pressure vessel is placed, the placement plate 19 and the connecting plate 20 move down together. At this time, the placement plate 19 pushes the sliding rod 18 into the hollow column 5 and compresses the buffer spring 22. While the placement plate 19 moves down, the connecting block 23 pushes the rotating plate 15 through the inclined surface, so that the rotating plate 15 rotates around the connecting rod 14 as the center, so that the rubber block 16 on the rotating plate 15 contacts both ends of the pressure vessel, thereby clamping the pressure vessel by the two rotating plates 15. At this time, the bottom of the pressure vessel will contact the rotating block 30. Then, the first motor 8 is started to rotate the threaded rod 9, so that the moving plate 10 can move along the threaded rod 9 through the threaded sleeve 11, thereby detecting the surface of the pressure vessel through the detection probe 12. At the same time, the second motor 28 slowly rotates the rotating rod 29, so that the rotating block 30 on the rotating rod 29 can push the pressure vessel, so that the pressure vessel can roll on the connecting plate 20, so that all parts of the pressure vessel can be detected by the detection probe 12.
[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0027] The preferred embodiments of this patent have been described in detail above. However, this patent is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this patent.
Claims
1. A pressure vessel non-destructive testing device with a positioning structure, comprising a base (1), characterized in that: Anti-slip pads (2) are connected to the four corners of the base (1), a fixing frame (3) is connected to the base (1), a fixing plate (4) is connected to the top of the base (1), a hollow column (5) is connected to the base (1), a support plate (6) is connected to the base (1), a first mounting plate (7) is connected to one side of the fixing frame (3), a first motor (8) is mounted on the first mounting plate (7), a threaded rod (9) is connected to the output shaft of the first motor (8), a moving plate (10) is mounted on the threaded rod (9), a threaded sleeve (11) is mounted on the moving plate (10), and a detection probe (12) is mounted below the moving plate (10). A connecting rod (14) is connected to the fixed plate (4), a rotating plate (15) is rotatably connected to the connecting rod (14), a rubber block (16) is rotatably connected above the rotating plate (15), a sliding rod (18) is slidably connected inside the hollow column (5), a placement plate (19) is connected to one end of the sliding rod (18), a connecting plate (20) is connected between the two placement plates (19), a connecting block (23) is connected below the placement plate (19), a second mounting plate (27) is connected to one side of the support plate (6), a second motor (28) is mounted on the second mounting plate (27), a rotating rod (29) is connected to the output shaft of the second motor (28), and a rotating block (30) is connected to the rotating rod (29).
2. The pressure vessel non-destructive testing device with a positioning structure according to claim 1, characterized in that: The fixed frame (3) is connected to a guide rod (13). There are two guide rods (13) respectively located on both sides of the threaded rod (9). The two ends of the movable plate (10) slide on the guide rods (13).
3. The pressure vessel non-destructive testing device with a positioning structure according to claim 1, characterized in that: The rotating plate (15) is V-shaped in general. Torsion springs (17) are connected to both sides of the rotating plate (15). One end of the torsion spring (17) is connected to the fixed plate (4). The connecting block (23) has an inclined surface on one side and contacts the bottom of the rotating plate (15).
4. The pressure vessel non-destructive testing device with a positioning structure according to claim 1, characterized in that: The upper part of the placement plate (19) is arc-shaped and connected to a rubber pad (21). Buffer springs (22) are connected to both sides of the placement plate (19). One end of the buffer spring (22) is connected to the hollow column (5).
5. The pressure vessel non-destructive testing device with a positioning structure according to claim 1, characterized in that: A limiting groove (25) is provided on the hollow column (5), and a limiting block (26) is connected to the sliding rod (18). The limiting block (26) slides in the limiting groove (25).
6. The pressure vessel non-destructive testing device with a positioning structure according to claim 1, characterized in that: A roller (24) is rotatably connected to the connecting plate (20), and the rotating rod (29) and the rotating block (30) are arranged together between the two connecting plates (20). Anti-slip texture is provided under the anti-slip pad (2).