Nondestructive testing device for pipeline

Abstract

The utility model relates to the technical field of welding seam detection, in particular to a pipeline nondestructive testing device, which comprises a detection head and a fixing component, the detection head is arranged on a pipeline, the fixing component is sleeved on the pipeline and comprises a fixing ring, a sliding rail and a sliding piece, the fixing ring is sleeved on the pipeline and consists of a plurality of same arc-shaped blocks, and the sliding piece is arranged on the sliding rail. The multiple sliding rails are connected to one side of the arc-shaped block, the sliding piece is slidably connected to the sliding rails, and the detection head is connected with the sliding piece. According to the pipeline fixing device, the fixing ring is arranged to be of a modular structure and fixed to the pipeline through splicing of the multiple arc-shaped blocks, the sliding rail is also arranged to be of a modular structure the same as the fixing ring, so that the sliding rail can be synchronously increased along with the arc-shaped blocks to adapt to pipelines with different diameters, and the sliding part can move along the sliding rail and can be fixed to the pipeline through the sliding rail. The detection head is kept to be tightly attached to the outer wall of the pipeline through pushing of the second elastic piece so that detection can be carried out, and the deviation problem occurring during detection can be reduced.

Description

Technical Field

[0001] This utility model relates to the field of weld inspection technology, specifically to a non-destructive testing device for pipelines. Background Technology

[0002] Pipelines are typically used for transporting liquids or gases, so they require a high degree of sealing. Therefore, pipelines, especially weld seams, need to be inspected before leaving the factory.

[0003] Chinese Patent No. CN221926230U discloses an ultrasonic testing device for the outer wall of a pipeline, belonging to the field of pipeline testing technology. The device features a testing base with an mounting rod that slides on the rod. Sleeves are attached to both ends of the mounting rod and are fitted onto the pipeline. The mounting rod can rotate around the center of the sleeves, allowing the testing base to detect any point on the outer wall of the pipeline within a certain range. By using sleeves that can be fitted onto the pipeline and mounting the testing base between the sleeves via the mounting rod, the testing base can rotate around the center of the sleeves and move on the mounting rod. Compared to a handheld testing probe that circles the pipeline, this device's testing base can achieve a more precise circumferential movement around the pipeline.

[0004] However, in the above technical solution, only two kits are fitted on the outside of the pipe. The position of the detection base is adjusted by moving along the central axis of the mounting rod between the kits, and the detection base rotates around the pipe along the kit. However, in some scenarios, it is necessary to inspect the pipe that has already been installed to prevent new defects from being generated during transportation, hoisting, welding, etc., or the original defects from being expanded due to construction stress. Therefore, it is inconvenient to install the kits on the pipe that has already been installed. Utility Model Content

[0005] The purpose of this invention is to address the problems existing in the background technology by proposing a non-destructive testing device for pipelines.

[0006] The technical solution of this utility model is as follows: A non-destructive testing device for pipelines includes a testing head disposed on the pipeline; a fixing component sleeved on the pipeline, the fixing component including a fixing ring, a sliding rail and a sliding member, the fixing ring being sleeved on the pipeline and composed of multiple identical arc-shaped blocks, multiple sliding rails connected to one side of the arc-shaped blocks, the sliding member being slidably connected to the sliding rail, and the testing head being connected to the sliding member; in the use state of the fixing component, the fixing ring is fitted to the pipeline by adding or removing arc-shaped blocks, and the sliding member drives the testing head to move along the sliding rail to fit the testing head to the pipeline.

[0007] Preferably, the fixing assembly further includes a connecting plate, which is provided with multiple plates, and two parallel rotating rods are connected to the connecting plate; protrusions, the number of which corresponds to the number of rotating rods, the protrusions are connected to one end of the rotating rods, and the protrusions engage with the slots opened on the arc-shaped blocks; adjusting handles, the number of which corresponds to the number of rotating rods, the adjusting handles are connected to the other end of the rotating rods. Preferably, according to the non-destructive testing device for pipelines according to claim 1, the protrusions are provided with receiving grooves at both ends, a first elastic element is connected in the receiving groove, a mating block is connected on the first elastic element, and the mating block engages with the notch opened in the slot.

[0008] Preferably, the sliding component comprises a movable seat, a support seat, rollers, a movable rod, a limiting block, a second elastic element, and a mounting seat. Two rollers are connected to one side of the movable seat, and the rollers are tactilely connected to the sliding guide rail. A support seat is connected to the movable seat, and the movable rod is slidably connected in a through hole opened in the support seat. The two ends of the movable rod are respectively connected to the mounting seat and the limiting block. The detection head is detachably connected to the mounting seat. The second elastic element is disposed between the support seat and the limiting block, and the second elastic element is sleeved on the outside of the movable rod.

[0009] Preferably, the side of the arc-shaped block closest to the pipe is connected to a protective pad.

[0010] Preferably, the mounting base consists of a support frame, a third elastic element, and a locking block. The support frame is connected to the moving rod, and symmetrically arranged third elastic elements are connected to the support frame. The locking block is connected to the third elastic element.

[0011] Preferably, the adjacent arc blocks and both ends of the sliding track are arc-shaped.

[0012] Compared with the prior art, the above-mentioned technical solution of this utility model has the following beneficial technical effects:

[0013] In this invention, the fixing ring is set as a modular structure and is fixed to the pipe by splicing multiple arc-shaped blocks. The sliding track is also set as a modular structure with the fixing ring, so that it can be added synchronously with the arc-shaped blocks to adapt to pipes of different diameters. While the sliding member can move along the sliding track, the second elastic member pushes to keep the detection head in close contact with the outer wall of the pipe for detection and to reduce the problem of deviation during detection. Attached Figure Description

[0014] Figure 1 This is a perspective view of the present utility model;

[0015] Figure 2 This is a schematic diagram of the fixed ring structure;

[0016] Figure 3 This is a schematic diagram of the cross-sectional structure of the fixed component;

[0017] Figure 4 for Figure 3 Enlarged view of the structure at point A;

[0018] Figure 5 This is a cross-sectional view of the sliding component;

[0019] Figure 6 for Figure 5 Enlarged view of the structure at point B.

[0020] Reference numerals in the attached drawings: 1. Detection head; 2. Fixing ring; 3. Sliding rail; 4. Sliding element; 5. Connecting plate; 6. Rotating rod; 7. Protrusion; 8. Slot; 9. Adjusting handle; 10. Receiving groove; 11. First elastic element; 12. Mating block; 13. Moving seat; 14. Support seat; 15. Roller; 16. Moving rod; 17. Limiting block; 18. Second elastic element; 19. Mounting seat; 20. Protective pad; 21. Support frame; 22. Third elastic element; 23. Locking block. Detailed Implementation

[0021] Example 1

[0022] like Figures 1-6 As shown, the present invention proposes a non-destructive testing device for pipelines, comprising a testing head 1 and a fixing assembly. The testing head 1 is disposed on the pipeline, and the fixing assembly is sleeved on the pipeline. The fixing assembly includes a fixing ring 2, a sliding rail 3, and a sliding member 4. The fixing ring 2 is sleeved on the pipeline and is composed of multiple identical arc-shaped blocks. Multiple sliding rails 3 are connected to one side of the arc-shaped blocks, and the sliding member 4 is slidably connected to the sliding rail 3. The testing head 1 is connected to the sliding member 4. In the use state of the fixing assembly, the fixing ring 2 is fitted to the pipeline by adding or removing arc-shaped blocks, and the sliding member 4 drives the testing head 1 to move along the sliding rail 3 to fit the testing head 1 to the pipeline.

[0023] Example 2

[0024] like Figures 3-6 As shown, the present invention proposes a non-destructive testing device for pipelines. Compared with Embodiment 1, this embodiment describes the detailed structure of the fixing component. The fixing component also includes a connecting plate 5, a rotating rod 6, a protrusion 7, and an adjusting handle 9. Multiple connecting plates 5 are provided. Two parallel rotating rods 6 are connected to the connecting plate 5. The number of protrusions 7 corresponds to the number of rotating rods 6. The protrusions 7 are connected to one end of the rotating rod 6 and engage with the slots 8 opened on the arc-shaped block. The number of adjusting handles 9 corresponds to the number of rotating rods 6 and the adjusting handles are connected to the other end of the rotating rod 6.

[0025] In an optional embodiment, both ends of the protrusion 7 are provided with receiving grooves 10, and a first elastic member 11 is connected in the receiving groove 10. A mating block 12 is connected to the first elastic member 11, and the mating block 12 engages with the notch in the slot 8. The first elastic member 11 is a spring. The mating block 12, by engaging with the notch in the slot 8, can maintain its connection when the arc-shaped block rotates, preventing it from falling off, and thus facilitating disassembly and assembly.

[0026] In an optional embodiment, the slider 4 is composed of a movable seat 13, a support seat 14, rollers 15, a movable rod 16, a limiting block 17, a second elastic element 18, and a mounting seat 19. Two rollers 15 are connected to one side of the movable seat 13, and the rollers 15 are tactilely connected to the sliding guide rail. The support seat 14 is connected to the movable seat 13. The movable rod 16 is slidably connected in a through hole opened in the support seat 14. The two ends of the movable rod 16 are respectively connected to the mounting seat 19 and the limiting block 17. The detection head 1 is detachably connected to the mounting seat 19. The second elastic element 18 is disposed between the support seat 14 and the limiting block 17, and the second elastic element 18 is sleeved on the outside of the movable rod 16. The second elastic element 18 is a spring.

[0027] In an optional embodiment, each of the arc-shaped blocks is connected to a protective pad 20 on the side near the pipe; the protective pad 20 is made of, but is not limited to, rubber material, and the rubber undergoes non-linear deformation when compressed to adapt to the unevenness of the pipe surface to improve the fit.

[0028] In an optional embodiment, the mounting base 19 consists of a support frame 21, a third elastic element 22, and a locking block 23. The support frame 21 is connected to the moving rod 16, and the support frame 21 is connected to the symmetrically arranged third elastic elements 22. The locking block 23 is connected to the third elastic elements 22. The third elastic element 22 may be, but is not limited to, a spring sheet.

[0029] In an optional embodiment, the two ends of the adjacent arc blocks and the sliding track 3 are both arc-shaped; the arc shape facilitates the adjustment of the arc blocks and the sliding track 3 and avoids obstruction of their rotation.

[0030] In summary, when using this utility model, the number of arc-shaped blocks can be increased or decreased according to the pipe diameter of different sizes. When removing the arc-shaped blocks, rotating the adjusting handle 9 rotates the rotating rod 6 and the protrusion 7. After the mating block 12 moves away from the notch in the receiving groove 10, it can be taken out of the receiving groove 10. At this time, one arc-shaped block can be removed. Multiple assembled arc-shaped blocks are wrapped around the pipe. The connecting plate 5 is brought close to the arc-shaped blocks at both ends. After inserting the protrusion 7 into the receiving groove 10, the adjusting handle 9 is rotated. The first elastic element 11 rebounds and pushes the mating block 12 to move so that it contacts the notch and then... The movement of the locking block 7 is restricted, and then the ultrasonic testing head 1 is inserted into the support frame 21. The third elastic element 22 pushes the locking block 23 to cooperate with the groove on the testing head 1 to restrict its position. Then, the staff cleans the pipe and applies coupling agent. The staff pushes the sliding element 4 to move. When it moves, the roller 15 slides along the sliding track 3. At the same time, the second elastic element 18 will drive the limiting block 17, the moving rod 16 and the mounting base 19 to move down through its own elastic force, so that the testing head 1 keeps in close contact with the pipe for testing.

[0031] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.

Claims

1. An apparatus for non-destructive testing of a pipe, characterized by, include The detection head (1) is installed on the pipe; The fixing component is fitted onto the pipe. The fixing component includes a fixing ring (2), a sliding rail (3), and a sliding element (4). The fixing ring (2) is fitted onto the pipe and is composed of multiple identical arc-shaped blocks. Multiple sliding rails (3) are connected to one side of the arc-shaped blocks. The sliding element (4) is slidably connected to the sliding rail (3). The detection head (1) is connected to the sliding element (4). When the fixing component is in use, the fixing ring (2) fits the pipe by adding or removing arc-shaped blocks. The sliding element (4) drives the detection head (1) to move along the sliding rail (3) so that the detection head (1) fits the pipe.

2. A device for non-destructive testing of a pipe according to claim 1, characterized in that The fixing components also include There are multiple connecting plates (5), and two parallel rotating rods (6) are connected to the connecting plates (5); The number of protrusions (7) corresponds to the number of rotating rods (6). The protrusions (7) are connected to one end of the rotating rods (6), and the protrusions (7) engage with the slots (8) opened on the arc-shaped block. Adjusting handles (9) are numbered in relation to rotating rods (6), and the adjusting handles are connected to the other end of rotating rods (6).

3. The non-destructive testing device for pipelines according to claim 2, characterized in that, Both ends of the protrusion (7) are provided with receiving grooves (10), and a first elastic element (11) is connected in the receiving groove (10). A mating block (12) is connected on the first elastic element (11), and the mating block (12) engages with the notch opened in the slot (8).

4. The apparatus for non-destructive testing of a pipe according to claim 1, wherein, The sliding member (4) consists of a movable seat (13), a support seat (14), rollers (15), a movable rod (16), a limiting block (17), a second elastic member (18), and a mounting seat (19). Two rollers (15) are connected to one side of the movable seat (13), and the rollers (15) are rolled to the sliding guide rail. The support seat (14) is connected to the movable seat (13). The movable rod (16) is slidably connected to the through hole opened on the support seat (14). The two ends of the movable rod (16) are respectively connected to the mounting seat (19) and the limiting block (17). The detection head (1) is detachably connected to the mounting seat (19). The second elastic member (18) is set between the support seat (14) and the limiting block (17). The second elastic member (18) is sleeved on the outside of the movable rod (16).

5. The apparatus for non-destructive testing of a pipe according to claim 1, wherein, The curved blocks are all connected to protective pads (20) on the side closest to the pipe.

6. A device for non-destructive testing of a pipe according to claim 4, characterized in that The mounting base (19) consists of a support frame (21), a third elastic element (22) and a locking block (23). The support frame (21) is connected to the moving rod (16). The third elastic element (22) is symmetrically arranged on the support frame (21), and the locking block (23) is connected to the third elastic element (22).

7. The non-destructive testing device for pipelines according to claim 1, characterized in that, The adjacent arc blocks and both ends of the sliding track (3) are arc-shaped.

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