A steel pipe flaw detection auxiliary device

Abstract

The utility model relates to steel pipe flaw detection technical field discloses a kind of steel pipe flaw detection auxiliary device, including ultrasonic flaw detector, ultrasonic flaw detector rear side is equipped with clamping block, ultrasonic flaw detector bottom is equipped with support plate, clamping block top is equipped with the limiting component connected with ultrasonic flaw detector, clamping block rear side is connected with winding mechanism, winding mechanism is equipped with flaw detection head away from clamping block side, support plate below is equipped with fixed mechanism;Fixed mechanism includes adjusting seat, magnet seat, magnet seat is fixedly installed in adjusting seat bottom, and adjusting seat is fixedly connected with support plate, magnet seat bottom surface is circular arc curved surface, bidirectional screw rod is rotatably installed in adjusting seat, sliding block is respectively screw-connected in the symmetrical position of bidirectional screw rod outer wall, and handle is connected to the one end of bidirectional screw rod and extends to adjusting seat outside;The utility model realizes magnetic attraction-mechanical double fixing by fixed mechanism, and adapts to multi-material multi-pipe diameter steel pipe;Conveniently dismounting ultrasonic flaw detector by limiting component, improve applicability and operating efficiency.

Description

Technical Field

[0001] This utility model relates to the field of steel pipe flaw detection technology, and in particular to an auxiliary device for steel pipe flaw detection. Background Technology

[0002] Steel pipes with hollow cross sections and lengths much greater than their diameters or circumferences must be inspected for internal defects such as cracks, inclusions, and porosity using an ultrasonic flaw detector during factory inspection, installation acceptance, or operation and maintenance to ensure safe use.

[0003] Referring to Chinese Patent No. CN219434745U, the disclosed "An Auxiliary Device for Steel Pipe Flaw Detection" solves three major pain points in traditional flaw detection operations: First, it avoids the problem of unstable placement of ultrasonic flaw detectors due to uneven ground; second, by fixing the flaw detector to the steel pipe body, it is convenient for operators to directly observe the test data without repeatedly looking down to check the equipment on the ground; third, by integrating a winding mechanism, it achieves orderly storage of the flaw detector's connecting cable, facilitating equipment movement and portability, and effectively improving the limitations of traditional operations such as "difficult placement, difficult observation, and difficult storage".

[0004] However, the device still has obvious shortcomings in practical applications: its fixing structure relies on the magnetic component (first magnet) at the bottom to attract the steel pipe for positioning, which is only suitable for magnetic steel pipes such as carbon steel; for non-magnetic steel pipes such as stainless steel, aluminum alloy, and copper alloy, the magnetic fixing method is completely ineffective and cannot achieve stable positioning, which greatly limits the applicability of the device and makes it difficult to meet the flaw detection needs of steel pipes of various materials. Utility Model Content

[0005] In view of the problem that the existing steel pipe flaw detection auxiliary device relies solely on the bottom magnetic component for positioning and is only suitable for magnetic steel pipes such as carbon steel, it cannot achieve stable fixation for non-magnetic steel pipes such as stainless steel and aluminum alloy, thus limiting its applicability and making it difficult to meet the flaw detection needs of steel pipes of various materials, this utility model is proposed.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a steel pipe flaw detection auxiliary device, including an ultrasonic flaw detector, a locking block provided on the rear side of the ultrasonic flaw detector, a support plate provided on the bottom of the ultrasonic flaw detector, a limiting component connected to the ultrasonic flaw detector on the top of the locking block, a winding mechanism connected to the rear side of the locking block, a flaw detection head provided on the side of the winding mechanism away from the locking block, and a fixing mechanism provided below the support plate. The fixing mechanism includes an adjusting seat and a magnet seat. The magnet seat is fixedly installed at the bottom of the adjusting seat, and the adjusting seat is fixedly connected to the support plate. The bottom surface of the magnet seat is an arc-shaped curved surface. A bidirectional screw is rotatably installed inside the adjusting seat. Slider blocks are threadedly connected to symmetrical positions on the outer wall of the bidirectional screw. One end of the bidirectional screw extends to the outside of the adjusting seat and is connected to a handle.

[0007] As a preferred embodiment, the fixing mechanism further includes a push plate, which is symmetrically arranged inside the adjusting seat and located on both sides of the bidirectional screw. The slider is hinged to one side of the push plate via connecting rods on both sides. Support rods are symmetrically arranged on opposite outer sides of the push plate, with one end of each support rod extending outside the adjusting seat. Several adjusting frames are rectangularly distributed on the outer side of the adjusting seat. The lower end of each adjusting frame is rotated and sleeved on the outer side of one end of the support rod, and the adjusting frame is rotatably connected to the support rod via bearings. Clamping blocks are symmetrically arranged on the opposite inner sidewalls of the front and rear adjusting frames, and wear-resistant rubber pads are provided on the opposite inner sidewalls of the clamping blocks.

[0008] As a preferred embodiment, the inner sidewalls of the two adjustment frames on the same side are respectively provided with sliding grooves, and an adjustment screw is rotatably installed in the sliding groove. An adjustment block is threadedly connected to the outer wall of the adjustment screw, and one end of the adjustment block is fixedly connected to the clamping block. The upper end of the adjustment screw extends to the outside of the adjustment frame.

[0009] As a preferred embodiment, each of the outermost ends of the support rod is fixedly connected to a fixing block, and the fixing block is located on the side of the adjustment frame away from the adjustment seat. A strong magnet is embedded in one side of the fixing block, and the adjustment frame is made of metal that attracts the magnet seat.

[0010] As a preferred embodiment, the limiting component includes a pull rod disposed on the top of the locking block. A cavity is formed inside the upper end of the locking block. A baffle is connected to the lower end of the pull rod within the cavity. A spring is sleeved on the outside of the pull rod above the baffle. An insert is connected to the lower end of the baffle, and the lower end of the insert extends into a slot formed on the top of the ultrasonic flaw detector.

[0011] As a preferred embodiment, the lower right side of the insert block is provided with an inclined surface, the upper end of the pull rod is connected to a pull handle, and the two ends of the spring are respectively fixedly connected to the inner wall of the cavity and the baffle.

[0012] Compared with the prior art, the present invention has at least the following beneficial effects: 1. This utility model uses a fixing mechanism to attract and fix magnetic steel pipes via a magnet base, achieving rapid positioning. Before use, the adjusting frame is rotated to move the clamping blocks to the lower position. By twisting the handle, the bidirectional screw is rotated, which drives the two sliders to move synchronously inward, thereby driving the connecting rod to push the push plate to move outward, which in turn drives the support rod to move, causing the adjusting frame to move synchronously and adjust the distance between the two clamping blocks. When it is necessary to use the clamping blocks to hold the steel pipe, the handle can be rotated in the opposite direction to drive the bidirectional screw, which causes the adjusting frame to move the clamping blocks inward, thus allowing the clamping blocks to hold the steel pipe. The height of the clamping blocks can be adjusted by using the adjusting screw and adjusting blocks to adapt to steel pipes of various diameters, expanding the applicability of the device. Moreover, this structure can achieve a dual fixing effect of magnetic attraction and mechanical fixation, improving the fixing effect, and can be used for flaw detection of steel pipes of various materials.

[0013] 2. This utility model, through the limiting component, allows for convenient and quick installation, fixing, and disassembly of the ultrasonic flaw detector. During disassembly, pulling the handle upwards drives the pull rod, which in turn drives the baffle and the insert block. Simultaneously, the baffle compresses the spring until the insert block moves out of the slot, allowing the ultrasonic flaw detector to be pulled out. During installation, the ultrasonic flaw detector is directly inserted between the locking block and the support plate. The top of the ultrasonic flaw detector pushes the inclined surface on the insert block upwards. When the insert block is aligned with the slot, it resets under the spring force and inserts into the slot, completing the quick fixing of the ultrasonic flaw detector. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the structure between the adjusting seat and the adjusting frame of this utility model; Figure 3 This is a partial cross-sectional structural diagram of the card block and ultrasonic flaw detector of this utility model. Figure 4 For the present utility model Figure 3 A magnified structural diagram of point A in the middle.

[0015] Explanation of reference numerals in the attached figures: 1. Ultrasonic flaw detector; 2. Clamping block; 3. Support plate; 4. Winding mechanism; 5. Flaw detector head; 6. Adjusting seat; 7. Magnet seat; 8. Bidirectional screw; 9. Slider; 10. Connecting rod; 11. Push plate; 12. Support rod; 13. Adjusting frame; 14. Clamping block; 15. Adjusting screw; 16. Adjusting block; 17. Fixing block; 18. Pull rod; 19. Cavity; 20. Baffle; 21. Insertion block; 22. Spring; 23. Slot. Detailed Implementation

[0016] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0017] Reference Figure 1 - Figure 4 As shown, a steel pipe flaw detection auxiliary device is provided, including an ultrasonic flaw detector 1, a locking block 2 at the rear of the ultrasonic flaw detector 1, a support plate 3 at the bottom of the ultrasonic flaw detector 1, a limiting component connected to the ultrasonic flaw detector 1 at the top of the locking block 2, a winding mechanism 4 connected to the rear of the locking block 2, a flaw detection head 5 on the side of the winding mechanism 4 away from the locking block 2, and a fixing mechanism below the support plate 3. By integrating the ultrasonic flaw detector 1, the locking block 2, the support plate 3, the winding mechanism 4, the flaw detection head 5, and the fixing mechanism, the core flaw detection components are integrated, avoiding the inconvenience of carrying scattered components, and laying a structural foundation for subsequent stable fixing and efficient flaw detection, thus improving the overall practicality of the device. The fixing mechanism includes an adjusting seat 6 and a magnet seat 7. The magnet seat 7 is fixedly installed at the bottom of the adjusting seat 6, and the adjusting seat 6 is fixedly connected to the support plate 3. The bottom surface of the magnet seat 7 is an arc-shaped curved surface. A bidirectional screw 8 is rotatably installed inside the adjusting seat 6. Slider 9s are threadedly connected to symmetrical positions on the outer wall of the bidirectional screw 8. One end of the bidirectional screw 8 extends to the outside of the adjusting seat 6 and is connected to a handle. The bottom surface of the magnet seat 7 is designed as an arc-shaped curved surface, which can better fit with the outer wall of the cylindrical steel tube, increase the contact area during magnetic fixation, and enhance the fixing stability of the magnetic steel tube. The cooperation between the bidirectional screw 8 and the slider 9, together with the outer handle, allows the slider 9 to move synchronously in the opposite direction or relative to each other by manual rotation, providing precise power for the subsequent driving clamping structure. The operation is simple and convenient, requiring no complex electrical control equipment, thus lowering the threshold for use.

[0018] In this example, the fixing mechanism also includes a push plate 11, which is symmetrically arranged inside the adjusting seat 6 and located on both sides of the bidirectional screw 8. The slider 9 is hinged to one side of the push plate 11 via connecting rods 10 on both sides. Support rods 12 are symmetrically arranged on the outer sides of the push plate 11, with one end of the support rod 12 extending outside the adjusting seat 6. Several adjusting frames 13 are rectangularly distributed on the outer side of the adjusting seat 6. The lower end of the adjusting frame 13 is rotated and sleeved on the outer side of one end of the support rod 12, and the adjusting frame 13 is rotatably connected to the support rod 12 via bearings. Clamping blocks 14 are symmetrically arranged on the inner sidewalls of the front and rear adjusting frames 13, and the clamping blocks 14 are respectively provided with anti-locking devices on the inner sidewalls. The wear-resistant rubber pad is designed to increase friction with the steel pipe, improve clamping stability, and prevent the clamping block 14 from directly contacting and scratching the steel pipe surface. The linkage structure of slider 9, connecting rod 10, and push plate 11 converts the rotational motion of the bidirectional screw 8 into the linear motion of push plate 11, which in turn drives support rod 12 to move adjusting frame 13, thus opening and closing clamping block 14 and providing a stable transmission path for mechanical clamping. The bearing connection between adjusting frame 13 and support rod 12 allows for flexible adjustment of the angle of adjusting frame 13. The wear-resistant rubber pad on the inner side of clamping block 14 increases friction with the steel pipe, improving clamping stability, and prevents clamping block 14 from directly contacting and scratching the steel pipe surface. Furthermore, the elasticity of the rubber adapts to the small protrusions on the steel pipe surface, further optimizing the clamping effect.

[0019] In this example, the inner walls of the two adjusting frames 13 on the same side are respectively provided with sliding grooves. An adjusting screw 15 is rotatably installed in the sliding groove. An adjusting block 16 is threadedly connected to the outer wall of the adjusting screw 15, and one end of the adjusting block 16 is fixedly connected to the clamping block 14. The upper end of the adjusting screw 15 extends to the outside of the adjusting frame 13. By cooperating with the adjusting screw 15 and the adjusting block 16, rotating the adjusting screw 15 can drive the adjusting block 16 to move up and down along the sliding groove, thereby adjusting the height position of the clamping block 14. This allows the clamping block 14 to accurately adapt to the clamping requirements of steel pipes of different diameters. For example, for small-diameter steel pipes, the clamping block 14 needs to be moved down, and for large-diameter steel pipes, the clamping block 14 needs to be moved up. This greatly expands the adaptability range of the device to steel pipe diameters and improves its versatility.

[0020] In this example, a fixing block 17 is fixedly connected to one of the outermost ends of the support rod 12. The fixing block 17 is located on the side of the adjustment frame 13 away from the adjustment seat 6. A strong magnet is embedded in one side of the fixing block 17. The adjustment frame 13 is made of metal that attracts the magnet seat 7. The fixing block 17 can limit the position of the adjustment frame 13. The adjustment frame 13 is made of metal that attracts the magnet seat 7. When fixing the magnetic steel pipe, the adjustment frame 13 can generate magnetic attraction with the strong magnet to assist in fixing, further enhancing the overall fixing stability. Especially in the environment of slight vibration, it can reduce the shaking of the adjustment frame 13. When the device is not in use, the adjustment frame 13 can be rotated so that one end of the clamping block 14 is above the adjustment seat 6. The adjustment frame 13 is magnetically connected and fixed with the magnet seat 7 to reduce the space occupied and make it easy to carry.

[0021] In this example, the limiting component includes a pull rod 18, which is located on the top of the locking block 2. A cavity 19 is provided inside the upper end of the locking block 2. A baffle 20 is connected to the lower end of the pull rod 18 within the cavity 19. A spring 22 is sleeved on the outside of the pull rod 18 above the baffle 20. An insert 21 is connected to the lower end of the baffle 20, and the lower end of the insert 21 extends into the slot 23 opened on the top of the ultrasonic flaw detector 1. The cavity 19 provides installation space for the baffle 20 and the spring 22, forming a complete elastic limiting structure. The cooperation between the insert 21 and the slot 23 can quickly realize the positioning and fixation of the ultrasonic flaw detector 1 and the locking block 2. The combination of the pull rod 18 and the spring 22 provides elastic power for the insertion and removal of the insert 21, laying the foundation for the subsequent quick assembly and disassembly of the ultrasonic flaw detector 1.

[0022] In this example, the lower right side of the insert block 21 has a bevel, the upper end of the pull rod 18 is connected to a handle, and the two ends of the spring 22 are fixedly connected to the inner wall of the cavity 19 and the baffle 20, respectively. The bevel design at the lower end of the insert block 21 eliminates the need to manually pull the pull rod 18 when installing the ultrasonic flaw detector 1. Simply push the ultrasonic flaw detector 1 between the locking block 2 and the support plate 3, and use the top of the ultrasonic flaw detector 1 to press against the bevel, which will push the insert block 21 upward, achieving automatic repositioning and simplifying the installation steps. The handle at the upper end of the pull rod 18 increases the contact area for hand force application, making it easier to pull the pull rod 18 upward during disassembly, thus improving the ease of operation. The two ends of the spring 22 are fixed to ensure that the spring 22 is stable in position during compression and reset, providing a continuous and stable elastic reset force for the insert block 21, ensuring the tight fit between the insert block 21 and the slot 23, and preventing the ultrasonic flaw detector 1 from loosening.

[0023] During use, the device is assembled and initially prepared as follows: The device forms the installation base of the ultrasonic flaw detector 1 through the clamping block 2 and the support plate 3. First, the ultrasonic flaw detector 1 is fixed between the clamping block 2 and the support plate 3 using the limiting component. The winding mechanism 4 can pre-store the connecting wire of the flaw detector head 5 to avoid messy wiring. The fixing mechanism below the support plate 3 serves as the core of the connection between the device and the steel pipe, preparing for subsequent stable fixing. The overall layout of the flaw detection components is integrated, which is convenient for carrying and quick deployment.

[0024] For fixing magnetic steel pipes: If the steel pipe to be inspected is made of magnetic material, directly attach the magnet seat 7 of the fixing mechanism to the outer wall of the steel pipe. Since the bottom surface of the magnet seat 7 is an arc-shaped curved surface, it can make close contact with the outer wall of the cylindrical steel pipe and fix the adjusting seat 6 through magnetic attraction.

[0025] For mechanical clamping and fixing of non-magnetic steel pipes: If the steel pipe to be inspected is of non-magnetic material, the mechanical clamping function of the fixing mechanism needs to be activated: First, rotate the adjusting frame 13 so that one end of the adjusting frame 13 connected to the clamping block 14 rotates to below the magnet seat 7. Then, rotate the handle on the outside of the bidirectional screw 8 to drive the bidirectional screw 8 to rotate inside the adjusting seat 6. Because the outer wall of the bidirectional screw 8 is symmetrically threaded with the slider 9, the slider 9 moves synchronously to the opposite inward side as the bidirectional screw 8 rotates. The slider 9 pushes the push plate 11 to move outward to the adjusting seat 6 through the connecting rods 10 hinged on both sides. The push plate 11 drives the support rod 12 to extend synchronously. The support rod 12 drives the adjusting frame 13 of the outer rotating sleeve to move synchronously to the opposite inward side. Move the pipe outward; then, according to the diameter of the steel pipe, rotate the adjusting screw 15 on the adjusting frame 13. The adjusting screw 15 drives the threaded adjusting block 16 to move up and down along the slide groove, so that the clamping block 14 connected to the adjusting block 16 is aligned with the clamping position of the steel pipe. Rotate the handle of the bidirectional screw 8 in the opposite direction to move the slider 9 to the opposite outward. The connecting rod 10 pulls the push plate 11, the support rod 12 and the adjusting frame 13 to reset. The clamping block 14 gradually clamps the steel pipe. The wear-resistant rubber pad on the inner side of the clamping block 14 increases the friction and protects the surface of the steel pipe, thus completing the mechanical clamping and fixing of the non-magnetic steel pipe. When fixing magnetic steel pipes, it is also possible to choose whether to activate the fixing mechanism to clamp and fix the steel pipe as needed.

[0026] Disassembly and assembly of ultrasonic flaw detector 1: During installation, push ultrasonic flaw detector 1 between the locking block 2 and the support plate 3. The top of ultrasonic flaw detector 1 presses against the inclined surface at the lower end of the insert 21, pushing the insert 21 to move the baffle 20 upward and compress the spring 22 in the cavity 19. When ultrasonic flaw detector 1 is in place, the insert 21 is aligned with the slot 23 at the top of ultrasonic flaw detector 1. The spring 22 returns to its original position, pushing the baffle 20 and the insert 21 downward. The insert 21 is inserted into the slot 23, completing the fixation of ultrasonic flaw detector 1. During disassembly, pull the handle at the upper end of the pull rod 18 upward. The pull rod 18 moves the baffle 20 and the insert 21 upward, and the insert 21 disengages from the slot 23, allowing ultrasonic flaw detector 1 to be pulled out from between the locking block 2 and the support plate 3.

[0027] Device storage and carrying: When the device is not in use, rotate the adjustment frame 13 to rotate it around the support rod 12, and rotate one end of the clamp 14 to the top of the adjustment seat 6. The magnetic attraction between the adjustment frame 13 and the magnet seat 7, as well as the strong magnet, are used to fix the device in place, reducing the overall space occupied by the device. At the same time, the connecting wire of the flaw detector head 5 is stored through the winding mechanism 4. Combined with the stable fixation of the ultrasonic flaw detector 1, the device can be easily carried and stored.

[0028] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A steel pipe flaw detection auxiliary device, comprising an ultrasonic flaw detector (1), characterized in that: The ultrasonic flaw detector (1) is provided with a locking block (2) on the rear side, and a support plate (3) is provided at the bottom of the ultrasonic flaw detector (1). The locking block (2) is provided with a limiting component connected to the ultrasonic flaw detector (1) on the top. A winding mechanism (4) is connected to the rear side of the locking block (2). A flaw detection head (5) is provided on the side of the winding mechanism (4) away from the locking block (2). A fixing mechanism is provided below the support plate (3). The fixing mechanism includes an adjusting seat (6) and a magnet seat (7). The magnet seat (7) is fixedly installed at the bottom of the adjusting seat (6), and the adjusting seat (6) is fixedly connected to the support plate (3). The bottom surface of the magnet seat (7) is an arc-shaped curved surface. A bidirectional screw (8) is rotatably installed inside the adjusting seat (6). Slider (9) is threadedly connected to the outer wall of the bidirectional screw (8) at symmetrical positions. One end of the bidirectional screw (8) extends to the outside of the adjusting seat (6) and is connected to a handle.

2. The auxiliary device for steel pipe flaw detection according to claim 1, characterized in that: The fixing mechanism also includes a push plate (11), which is symmetrically arranged in the adjusting seat (6) and located on both sides of the bidirectional screw (8). The slider (9) is hinged to the push plate (11) on one side through a connecting rod (10). The push plate (11) is symmetrically provided with support rods (12) on the outer side. One end of the support rod (12) extends to the outside of the adjusting seat (6). Several adjusting frames (13) are rectangularly distributed on the outer side of the adjusting seat (6). The lower end of the adjusting frame (13) is rotated and sleeved on the outer side of one end of the support rod (12). The adjusting frame (13) is rotatably connected to the support rod (12) through a bearing. Clamping blocks (14) are provided at symmetrical positions on the inner sidewalls of the front and rear adjusting frames (13). The clamping blocks (14) are provided with wear-resistant rubber pads on the inner sidewalls of the front and rear adjusting frames (13).

3. The auxiliary device for steel pipe flaw detection according to claim 2, characterized in that: The inner walls of the two adjustment frames (13) on the same side are respectively provided with sliding grooves. An adjustment screw (15) is rotatably installed in the sliding groove. An adjustment block (16) is threadedly connected to the outer wall of the adjustment screw (15). One end of the adjustment block (16) is fixedly connected to the clamping block (14). The upper end of the adjustment screw (15) extends to the outside of the adjustment frame (13).

4. The auxiliary device for steel pipe flaw detection according to claim 3, characterized in that: Each of the support rods (12) has a fixed block (17) fixedly connected to one of its opposite outer ends. The fixed block (17) is located on the side of the adjustment frame (13) away from the adjustment seat (6). A strong magnet is embedded on one side of the fixed block (17). The adjustment frame (13) is made of metal that attracts the magnet seat (7).

5. The auxiliary device for steel pipe flaw detection according to claim 2, characterized in that: The limiting component includes a pull rod (18), which is located on the top of the locking block (2). The upper end of the locking block (2) has a cavity (19). The lower end of the pull rod (18) is connected to a baffle (20) in the cavity (19). A spring (22) is sleeved on the outside of the pull rod (18) above the baffle (20). The lower end of the baffle (20) is connected to an insert (21), and the lower end of the insert (21) extends into a slot (23) opened on the top of the ultrasonic flaw detector (1).

6. The auxiliary device for steel pipe flaw detection according to claim 5, characterized in that: The lower right side of the insert (21) has an inclined surface, the upper end of the pull rod (18) is connected to a pull handle, and the two ends of the spring (22) are fixedly connected to the inner wall of the cavity (19) and the baffle (20) respectively.

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