A probe structure for magnetic particle inspection
By designing a probe structure with lifting and fixing mechanisms, the problem of inconvenient replacement of existing horseshoe probes was solved, enabling convenient flaw detection of steel pipes of different diameters and improving flaw detection efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHEYANG HONGYA NON-DESTRUCTIVE TESTING EQUIPMENT CO LTD
- Filing Date
- 2025-08-22
- Publication Date
- 2026-07-21
AI Technical Summary
The existing horseshoe probes are fixed on the flaw detector, which is inconvenient to replace, making the operation cumbersome when flaw detecting steel pipes of different diameters.
A probe structure for magnetic particle inspection was designed, comprising a lifting mechanism, a fixing mechanism, and a support structure. The height can be adjusted by the lifting mechanism, and the fixing mechanism enables quick replacement, adapting to the inspection needs of steel pipes of different diameters.
It enables convenient flaw detection of steel pipes of different diameters, simplifies the probe replacement process, and improves flaw detection efficiency.
Smart Images

Figure CN224535888U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of probe structure technology, and in particular to a probe structure for magnetic particle inspection. Background Technology
[0002] Magnetic particle testing is a non-destructive testing method that utilizes the phenomenon of magnetic powder accumulation in a leakage magnetic field to detect surface and near-surface defects in ferromagnetic materials. It is one of the five conventional non-destructive testing methods. Visible magnetic traces are formed by the accumulation of magnetic powder in the leakage magnetic field near the defect, thus revealing the material's discontinuities. During testing, a probe is used. The probe's function is to magnetize the workpiece, generating a magnetic field that magnetizes the surface and near-surface of the ferromagnetic material, guiding the magnetic field and concentrating magnetic lines of force in a specific testing area; defect display is achieved through the visible magnetic traces formed by the accumulation of magnetic powder; and magnetic field control allows for adjustment of the magnetic field direction to adapt to different testing requirements.
[0003] Currently, steel pipe production requires welding on the surface. After welding, magnetic particle testing is needed to determine the weld locations. During flaw detection, a horseshoe probe is used. However, most existing horseshoe probes are fixedly mounted on the flaw detection machine, making them inconvenient to replace and cumbersome when testing steel pipes of different diameters. Therefore, improvements are needed. Utility Model Content
[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a probe structure for magnetic particle inspection, which aims to solve the above-mentioned technical problems.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: A probe structure for magnetic particle inspection includes a main body, a connector, and a support plate, wherein the connector is fixedly connected to the main body; and further includes: A support block is mounted on the main body and is fixedly connected to the main body. A support groove is formed on the support block; A lifting mechanism, mounted on the support plate, is used to adjust the height of the main body; The lifting frame is mounted on the support plate and is fixedly connected to the support plate. The lifting slot is formed inside the lifting frame; The lifting block is slidably connected to the lifting groove; A fixing mechanism, installed on the lifting block, is used to clamp and fix the support block, enabling quick replacement of the main body; There are two fixing blocks, which are symmetrically arranged in the support groove and slidably connected to the support groove.
[0006] Preferably, the lifting mechanism includes: A lifting shaft is disposed on the lifting frame and is rotatably connected to the lifting frame; The lifting plate is fixedly connected to the lifting shaft; A rotating component is mounted on the lifting shaft.
[0007] Preferably, the rotating component includes: Two rotating blocks are symmetrically arranged on the lifting shaft, threadedly connected to the lifting shaft, and slidably connected to the lifting frame. A first rotating shaft is disposed on the rotating block and fixedly connected to the rotating block; A rotating plate is rotatably connected to the first rotating shaft; The second rotating shaft is rotatably connected to the rotating plate; A rotating frame is mounted on the second rotating shaft, fixedly connected to the second rotating shaft, and fixedly connected to the lifting block.
[0008] Preferably, the fixing mechanism includes: A fixed frame is disposed on the lifting block and is fixedly connected to the lifting block; The fixing rod is fixedly connected to the fixing frame; The fixing sleeve is slidably connected to the fixing rod and also slidably connected to the fixing frame; The fixing plate is fixedly connected to the fixing sleeve; The elastic component is disposed within the fixed frame.
[0009] Preferably, the elastic component includes: An elastic groove is formed within the fixed frame; The first elastic block is slidably connected to the elastic groove; The second elastic block is disposed on the first elastic block, fixedly connected to the first elastic block, and fixedly connected to the fixing sleeve; One end of the elastic spring is fixedly connected to the second elastic block and to the fixed frame; The transmission component is mounted on the second elastic block.
[0010] Preferably, the transmission component includes: The first drive shaft has two shafts, and the two first drive shafts are symmetrically arranged on the second elastic block and fixedly connected to the second elastic block; A transmission plate is rotatably connected to the first transmission shaft; The second drive shaft is rotatably connected to the drive plate; A sliding component is disposed on the fixed frame.
[0011] Preferably, the sliding component includes: A sliding groove is formed within the fixed frame; There are two sliding blocks, which are symmetrically arranged in the sliding groove, slidably connected to the sliding groove, and fixedly connected to the fixed block.
[0012] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are: By setting up a lifting mechanism, lifting frame, lifting groove, and lifting block, the height of the main body can be adjusted, which is convenient for adjusting the height of the main body when performing flaw detection on round pipes of different diameters. By setting up a fixing mechanism, fixing block, support block, and support groove, the main body can be quickly clamped and fixed, making the replacement of the main body more convenient. Attached Figure Description
[0013] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0014] Figure 1 A three-dimensional structural diagram of a probe structure for magnetic particle inspection is shown.
[0015] Figure 2 A three-dimensional cross-sectional schematic diagram of a probe structure for magnetic particle inspection is shown.
[0016] Figure 3 An exploded three-dimensional view of a probe structure used for magnetic particle inspection is shown.
[0017] Figure 4 An exploded view of the fixing mechanism of a probe structure used for magnetic particle inspection is shown.
[0018] Figure 5 An exploded view of the lifting mechanism of a probe structure used for magnetic particle inspection is shown.
[0019] Figure 6 It shows Figure 2 Enlarged view of point A in the middle.
[0020] Legend: 1. Main body; 2. Connecting port; 3. Support plate; 4. Support block; 5. Support groove; 6. Lifting frame; 7. Lifting groove; 8. Lifting block; 9. Fixing block; 10. Lifting shaft; 11. Lifting plate; 12. Rotating block; 13. First rotating shaft; 14. Rotating plate; 15. Second rotating shaft; 16. Rotating frame; 17. Fixing frame; 18. Fixing rod; 19. Fixing sleeve; 20. Fixing plate; 21. Elastic groove; 22. First elastic block; 23. Second elastic block; 24. Elastic spring; 25. First transmission shaft; 26. Transmission plate; 27. Second transmission shaft; 28. Sliding groove; 29. Sliding block. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.
[0022] In the description of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0023] It should be noted that when a component is described as "fixed to" another component, it can be directly on the other component or may have a component in between. When a component is considered "connected to" another component, it can be directly connected to the other component or may have a component in between. When a component is considered "set on" another component, it can be directly set on the other component or may have a component in between. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.
[0024] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.
[0025] ReferenceFigures 1 to 5 The present invention provides a further description of an embodiment of a probe structure for magnetic particle inspection.
[0026] A probe structure for magnetic particle inspection includes a main body 1, a connecting port 2, and a support plate 3, with the connecting port 2 fixedly connected to the main body 1. It also includes: a support block 4, disposed on the main body 1 and fixedly connected to it; a support groove 5, formed on the support block 4; a lifting mechanism, disposed on the support plate 3, for adjusting the height of the main body 1; a lifting frame 6, disposed on the support plate 3 and fixedly connected to it; a lifting groove 7, formed within the lifting frame 6; a lifting block 8, slidably connected to the lifting groove 7; a fixing mechanism, disposed on the lifting block 8, for clamping and fixing the support block 4, enabling quick replacement of the main body 1; and two fixing blocks 9, symmetrically arranged within the support groove 5 and slidably connected to it.
[0027] Reference Figure 5 In a preferred embodiment, the lifting mechanism includes: a lifting shaft 10, which is disposed on the lifting frame 6 and rotatably connected to the lifting frame 6; a lifting plate 11, which is fixedly connected to the lifting shaft 10; and a rotating component disposed on the lifting shaft 10.
[0028] During operation, rotating the lifting plate 11 causes the lifting shaft 10, which is fixedly connected to the lifting plate 11, to rotate.
[0029] Reference Figure 5 In a preferred embodiment, the rotating component includes: two rotating blocks 12 symmetrically arranged on the lifting shaft 10, threadedly connected to the lifting shaft 10, and slidably connected to the lifting frame 6; a first rotating shaft 13 disposed on the rotating blocks 12 and fixedly connected to the rotating blocks 12; a rotating plate 14 rotatably connected to the first rotating shaft 13; a second rotating shaft 15 rotatably connected to the rotating plate 14; and a rotating frame 16 disposed on the second rotating shaft 15, fixedly connected to the second rotating shaft 15, and fixedly connected to the lifting block 8.
[0030] During operation, the rotating block 12, which is threadedly connected to the lifting shaft 10, rotates, thereby driving the rotating plate 14, which is rotatably connected to the first rotating shaft 13, to rotate. This causes the rotating frame 16, which is fixedly connected to the second rotating shaft 15, to move, thereby causing the lifting block 8, which is fixedly connected to the rotating frame 16, to slide in the lifting groove 7 on the lifting frame 6. This causes the fixed frame 17, which is fixedly connected to the lifting block 8, to move, thereby driving the main body 1 to move.
[0031] Reference Figure 4In a preferred embodiment, the fixing mechanism includes: a fixing frame 17, which is disposed on the lifting block 8 and fixedly connected to the lifting block 8; a fixing rod 18, which is fixedly connected to the fixing frame 17; a fixing sleeve 19, which is slidably connected to the fixing rod 18 and slidably connected to the fixing frame 17; a fixing plate 20, which is fixedly connected to the fixing sleeve 19; and an elastic component disposed inside the fixing frame 17.
[0032] During operation, pressing the fixing plate 20 causes the fixing sleeve 19, which is fixedly connected to the fixing plate 20, to slide on the fixing rod 18.
[0033] Reference Figure 4 and Figure 6 In a preferred embodiment, the elastic component includes: an elastic groove 21, formed within the fixed frame 17; a first elastic block 22, slidably connected to the elastic groove 21; a second elastic block 23, disposed on the first elastic block 22, fixedly connected to the first elastic block 22, and fixedly connected to the fixed sleeve 19; an elastic spring 24, one end of which is fixedly connected to the second elastic block 23, and fixedly connected to the fixed frame 17; and a transmission component disposed on the second elastic block 23.
[0034] During operation, the second elastic block 23, which is fixedly connected to the fixed sleeve 19, moves, thereby causing the first elastic block 22, which is fixedly connected to the second elastic block 23, to slide in the elastic groove 21, so that the elastic spring 24 is compressed and generates elastic potential energy.
[0035] Reference Figure 4 In a preferred embodiment, the transmission component includes: two first transmission shafts 25, which are symmetrically arranged on the second elastic block 23 and fixedly connected to the second elastic block 23; a transmission plate 26, which is rotatably connected to the first transmission shafts 25; a second transmission shaft 27, which is rotatably connected to the transmission plate 26; a sliding component, which is disposed on the fixed frame 17; a sliding groove 28, which is formed in the fixed frame 17; and two sliding blocks 29, which are symmetrically arranged in the sliding groove 28, slidably connected to the sliding groove 28, and fixedly connected to the fixed block 9.
[0036] During operation, the transmission plate 26, which is rotatably connected to the first transmission shaft 25, rotates, causing the sliding block 29, which is fixedly connected to the second transmission shaft 27, to slide in the sliding groove 28, thereby causing the fixed block 9, which is fixedly connected to the sliding block 29, to move away from each other.
[0037] Working principle: When installing the main body 1, first press the fixing plate 20, which drives the fixing sleeve 19 fixedly connected to the fixing plate 20 to slide on the fixing rod 18, causing the second elastic block 23 fixedly connected to the fixing sleeve 19 to move, thereby causing the first elastic block 22 fixedly connected to the second elastic block 23 to slide in the elastic groove 21, causing the elastic spring 24 to be compressed and generating elastic potential energy, which drives the transmission plate 26 rotatably connected to the first transmission shaft 25 to rotate, causing the sliding block 29 fixedly connected to the second transmission shaft 27 to slide in the sliding groove 28, causing the fixing blocks 9 fixedly connected to the sliding block 29 to move away from each other, and then the support block 4 fixedly connected to the main body 1 is placed in the fixing frame 17, so that the main body 1 and the surface of the fixing frame 17 are in contact, and then the fixing plate 20 is released, so that the elastic spring 24 releases elastic potential energy, causing the sliding block 29 to drive the fixing blocks 9 to move closer to each other until the fixing blocks 9 and the support groove 5 are completely overlapped, thereby fixing the support block 4, so that the main body 1 can be replaced more quickly; Then, rotating the lifting plate 11 causes the lifting shaft 10, which is fixedly connected to the lifting plate 11, to rotate, causing the rotating block 12, which is threadedly connected to the lifting shaft 10, to rotate. This causes the rotating plate 14, which is rotatably connected to the first rotating shaft 13, to rotate, causing the rotating frame 16, which is fixedly connected to the second rotating shaft 15, to move. This causes the lifting block 8, which is fixedly connected to the rotating frame 16, to slide in the lifting groove 7 on the lifting frame 6, causing the fixed frame 17, which is fixedly connected to the lifting block 8, to move, thus moving the main body 1 and adjusting the height of the main body 1.
[0038] The above description of the embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A probe structure for magnetic particle inspection, comprising a main body (1), a connecting port (2), and a support plate (3), wherein the connecting port (2) is fixedly connected to the main body (1); characterized in that, Also includes: A support block (4) is disposed on the main body (1) and fixedly connected to the main body (1); A support groove (5) is formed on the support block (4); A lifting mechanism is provided on the support plate (3) for adjusting the height of the main body (1); The lifting frame (6) is set on the support plate (3) and fixedly connected to the support plate (3); The lifting groove (7) is opened inside the lifting frame (6); The lifting block (8) is slidably connected to the lifting groove (7); A fixing mechanism is provided on the lifting block (8) to clamp and fix the support block (4) so that the main body (1) can be quickly replaced. There are two fixing blocks (9), and the two fixing blocks (9) are symmetrically arranged in the support groove (5) and are slidably connected to the support groove (5).
2. The probe structure for magnetic particle inspection according to claim 1, characterized in that, The lifting mechanism includes: The lifting shaft (10) is disposed on the lifting frame (6) and is rotatably connected to the lifting frame (6); The lifting plate (11) is fixedly connected to the lifting shaft (10); A rotating component is mounted on the lifting shaft (10).
3. The probe structure for magnetic particle inspection according to claim 2, characterized in that, The rotating component includes: Two rotating blocks (12) are provided, and the two rotating blocks (12) are symmetrically arranged on the lifting shaft (10), threadedly connected to the lifting shaft (10), and slidably connected to the lifting frame (6); The first rotating shaft (13) is disposed on the rotating block (12) and is fixedly connected to the rotating block (12); Rotating plate (14) is rotatably connected to the first rotating shaft (13); The second rotating shaft (15) is rotatably connected to the rotating plate (14); The rotating frame (16) is set on the second rotating shaft (15), fixedly connected to the second rotating shaft (15), and fixedly connected to the lifting block (8).
4. The probe structure for magnetic particle inspection according to claim 3, characterized in that, The fixing mechanism includes: A fixed frame (17) is set on the lifting block (8) and fixedly connected to the lifting block (8); The fixing rod (18) is fixedly connected to the fixing frame (17); The fixing sleeve (19) is slidably connected to the fixing rod (18) and slidably connected to the fixing frame (17); The fixing plate (20) is fixedly connected to the fixing sleeve (19); The elastic component is disposed within the fixed frame (17).
5. The probe structure for magnetic particle inspection according to claim 4, characterized in that, The elastic component includes: An elastic groove (21) is formed within the fixed frame (17); The first elastic block (22) is slidably connected to the elastic groove (21); The second elastic block (23) is disposed on the first elastic block (22), fixedly connected to the first elastic block (22), and fixedly connected to the fixing sleeve (19); One end of the elastic spring (24) is fixedly connected to the second elastic block (23) and fixedly connected to the fixed frame (17); The transmission component is mounted on the second elastic block (23).
6. The probe structure for magnetic particle inspection according to claim 5, characterized in that, The transmission component includes: There are two first drive shafts (25), and the two first drive shafts (25) are symmetrically arranged on the second elastic block (23) and fixedly connected to the second elastic block (23); The transmission plate (26) is rotatably connected to the first transmission shaft (25); The second drive shaft (27) is rotatably connected to the drive plate (26); A sliding component is disposed on the fixed frame (17).
7. The probe structure for magnetic particle inspection according to claim 6, characterized in that, The sliding component includes: A sliding groove (28) is formed within the fixed frame (17); There are two sliding blocks (29), and the two sliding blocks (29) are symmetrically arranged in the sliding groove (28), slidingly connected to the sliding groove (28), and fixedly connected to the fixed block (9).