Pipeline eddy current nondestructive testing equipment

By introducing a restraint strip and support plate structure into the pipeline eddy current nondestructive testing equipment, the problem of hand soreness caused by prolonged hand-held operation has been solved, improving the comfort and accuracy of the testing.

CN224203124UActive Publication Date: 2026-05-05ZHENGZHOU CHANGSHUO ELECTRIC POWER ENG TESTING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHENGZHOU CHANGSHUO ELECTRIC POWER ENG TESTING CO LTD
Filing Date
2025-04-21
Publication Date
2026-05-05

AI Technical Summary

Technical Problem

When using a pipe eddy current nondestructive testing device for extended periods, workers' hands are prone to soreness, affecting testing efficiency and accuracy, and potentially leading to missed detection of potential defects.

Method used

A pipeline eddy current non-destructive testing device was designed, including a tester, a detector, a restraining strip, and a support plate structure. The restraining strip is stably installed through the assembly of the docking plate and the assembly plate. Combined with the extension and angle adjustment of the support plate, the hand comfort and testing efficiency are improved.

Benefits of technology

It improves the hand comfort of staff when holding the detector for extended periods, enhances the fit between the detector and the pipe surface and the smoothness of movement, and improves the accuracy and efficiency of the inspection.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of pipeline eddy current nondestructive testing, and particularly relates to pipeline eddy current nondestructive testing equipment which comprises a detector and a display screen installed on the surface of the detector, an electric wire is installed on the back side of the detector, the other end of the electric wire is connected with a detector, and one end of the detector is connected with a probe; the surface of the detector is connected with a butt joint plate, the butt joint plate and the assembling plate are assembled and butted on the surface of the detector, the positioning plates on the two sides of the butt joint plate are driven to be assembled with the positioning seats at the two ends of the assembling plate, and meanwhile the inserting plates are driven to be inserted into the openings in the surfaces of the positioning seats. The binding cloth strip is arranged on the surface of the detector, then the binding cloth strip is stably installed on the surface of the detector, then after the hand of a worker penetrates through the binding cloth strip, the probe at one end of the detector is used for detecting the vortex condition in the pipeline, the comfort of the hand when the worker holds the detector for a long time is improved, and the pipeline vortex nondestructive testing effect is improved.
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Description

Technical Field

[0001] This utility model belongs to the field of eddy current nondestructive testing technology, specifically relating to a pipeline eddy current nondestructive testing device. Background Technology

[0002] Pipeline eddy current nondestructive testing equipment is an important tool for detecting internal and surface defects in pipelines. Eddy current testing is based on the principle of electromagnetic induction. When an alternating current is passed through the detection coil, an alternating magnetic field is generated around it, inducing eddy currents on and near the pipe surface. If defects exist in the pipeline, such as cracks or holes, they will interfere with the distribution of eddy currents, thus causing changes in the impedance of the detection coil. By measuring and analyzing the changes in the impedance of the detection coil, it is possible to determine whether defects exist in the pipeline and the location and size of the defects.

[0003] Specifically, in the field of industrial pipeline inspection, workers frequently use testing equipment to perform non-destructive testing of pipeline eddy currents. During this process, workers must hold the probe of the testing instrument continuously for extended periods. Because inspection tasks often cover long pipeline routes or require meticulous inspection of numerous points, workers' hands must maintain a prolonged grip on the probe. Over time, the hand muscles remain in a state of tension and contraction, hindering blood circulation and easily leading to hand soreness. This soreness not only distracts workers, making it difficult to focus on the accurate reading and analysis of test data, but also reduces the flexibility and stability of hand operations, affecting the contact between the probe and the pipeline surface and the smoothness of movement. In the long run, inspection efficiency drops significantly, and the accuracy of the test results is compromised, potentially leading to the missed detection of potential pipeline defects and posing a serious threat to the safe operation of the pipeline system. Utility Model Content

[0004] The purpose of this invention is to provide a pipeline eddy current nondestructive testing device, aiming to solve the problem that, due to the fact that testing tasks often involve long pipelines or require detailed inspection of numerous points, workers' hands must maintain a prolonged grip on the testing instrument probe. Over time, the hand muscles remain in a state of tension and contraction, hindering blood circulation and easily causing hand soreness. This soreness not only distracts workers, making it difficult for them to focus on the accurate reading and analysis of test data, but also reduces the flexibility and stability of hand operation, affecting the adhesion between the testing instrument probe and the pipeline surface and the smoothness of its movement.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a pipeline eddy current non-destructive testing device, including a detector and a display screen mounted on the surface of the detector, wherein a wire is installed on the back side of the detector, the other end of the wire is connected to a probe, and one end of the probe is connected to a probe.

[0006] The detector has a docking plate connected to its surface, an assembly plate connected to one side of the docking plate, a binding strip connected to the surface of the docking plate, positioning plates connected to the outer sides of both ends of the docking plate, a positioning seat connected to the side of the assembly plate near the positioning plate, an insert plate connected to the end of the positioning plate near the positioning seat, a locking spring connected to the inner wall of the opening of the insert plate, a linkage plate connected to the other end of the locking spring, and a locking buckle connected to the other side of the linkage plate.

[0007] To facilitate the assembly of the binding strips, in this utility model of a pipeline eddy current non-destructive testing device, preferably, the recess size of the docking plate and the assembly plate is adapted to the surface size of the detector, and the positioning plate is connected to the opening on the surface of the positioning seat by inserting a plate.

[0008] To facilitate the stable installation of the binding strip, in this utility model of a pipeline eddy current non-destructive testing device, preferably, the locking buckle passes through an opening on one side of the insert plate, and the locking spring and the linkage plate form an elastic telescopic structure.

[0009] To facilitate handling of the testing instrument, as a pipeline eddy current non-destructive testing device of this utility model, preferably, the testing instrument has a handle connected to its back side, a fixing block is installed on the back of the testing instrument, and a rotating shaft is connected to one side of the fixing block.

[0010] To facilitate observation of the data on the surface of the detector, in this utility model of a pipeline eddy current non-destructive testing device, preferably, a tightening block is connected to the side of the fixed block opposite to the rotating shaft. The tightening block has a threaded structure and passes through the fixed block to be threadedly connected to the rotating shaft.

[0011] To facilitate the extension and retraction adjustment of the support plate, in this utility model of a pipeline eddy current non-destructive testing device, preferably, a rotating plate is connected to the surface of the rotating shaft, a telescopic plate is connected to the bottom end of the rotating plate, a support plate is sleeved on the surface of the telescopic plate, and the surface opening size of the support plate is adapted to the surface size of the telescopic plate.

[0012] To facilitate the stable installation of the support plate, as a pipeline eddy current non-destructive testing device of this utility model, preferably, the surface of the telescopic plate is connected to a guide block, the center of the surface of the telescopic plate is connected to a sliding block, the surface of the sliding block is connected to a screw, and the surface of the screw is threaded with a nut.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This invention uses a docking plate and an assembly plate to assemble and connect on the surface of the detector. This assembles the positioning plates on both sides of the docking plate with the positioning seats at both ends of the assembly plate. Simultaneously, it engages the insertion plate with the opening on the surface of the positioning seat, thereby securing the restraining strip on the surface of the detector. Afterward, the operator's hand passes through the restraining strip, and the probe at one end of the detector is used to detect the eddy currents inside the pipe. This improves the comfort of the operator's hand when holding the detector for a long time and enhances the effectiveness of non-destructive testing of pipe eddy currents. Attached Figure Description

[0015] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0016] Figure 1 This is a schematic diagram of the overall assembly structure of the non-destructive testing equipment provided in the embodiments of this application.

[0017] Figure 2 This is a schematic diagram of the detector connection structure provided in an embodiment of this application.

[0018] Figure 3 This is an exploded view of the binding strip installation structure provided in the embodiments of this application.

[0019] Figure 4 This is a schematic diagram of the locking buckle connection structure provided in an embodiment of this application.

[0020] Figure 5 This is a schematic diagram of the support plate connection structure provided in an embodiment of this application.

[0021] In the diagram: 1. Detector; 2. Display screen; 3. Wire; 4. Probe; 5. Probe; 6. Connecting plate; 7. Assembly plate; 8. Restraining strip; 9. Positioning plate; 10. Positioning seat; 11. Insert plate; 12. Locking spring; 13. Linkage plate; 14. Locking buckle; 15. Handle; 16. Fixing block; 17. Rotating shaft; 18. Tightening block; 19. Rotating plate; 20. Telescopic plate; 21. Support plate; 22. Guide block; 23. Sliding block; 24. Screw; 25. Nut. Detailed Implementation

[0022] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-5 The present invention provides the following technical solution: a pipeline eddy current non-destructive testing device, including a detector 1 and a display screen 2 installed on the surface of the detector 1, a wire 3 installed on the back side of the detector 1, the other end of the wire 3 being connected to a probe 4, and one end of the probe 4 being connected to a probe 5.

[0024] The surface of the detector 4 is connected to a docking plate 6, one side of the docking plate 6 is connected to an assembly plate 7, the surface of the docking plate 6 is connected to a binding cloth strip 8, both ends of the docking plate 6 are connected to positioning plates 9, the side of the assembly plate 7 near the positioning plate 9 is connected to a positioning seat 10, the end of the positioning plate 9 near the positioning seat 10 is connected to an insert plate 11, the inner wall of the opening of the insert plate 11 is connected to a locking spring 12, the other end of the locking spring 12 is connected to a linkage plate 13, and the other side of the linkage plate 13 is connected to a locking buckle 14.

[0025] Preferably, the recessed dimensions of the docking plate 6 and the assembly plate 7 are adapted to the surface dimensions of the detector 4, and the positioning plate 9 is connected to the opening on the surface of the positioning seat 10 by inserting the insert plate 11. In actual use, the docking plate 6 and the assembly plate 7 facilitate the stable installation of the restraint strip 8, thereby making it easier for the worker's hand to pass through the restraint strip 8 and improving the worker's comfort when holding the detector 4;

[0026] Preferably, the locking buckle 14 passes through an opening on one side of the insert plate 11, and the locking spring 12 and the linkage plate 13 form an elastic telescopic structure. In actual use, when the insert plate 11 is inserted into the opening on the surface of the positioning seat 10, it facilitates the linkage plate 13 to squeeze the locking spring 12, causing the locking buckle 14 to retract inward, thus facilitating the locking buckle 14 to pass through the insert plate 11 and engage with the opening on one side of the positioning seat 10.

[0027] Preferably, the back of the detector 1 is connected to a handle 15, and a fixing block 16 is installed on the back of the detector 1. A rotating shaft 17 is connected to one side of the fixing block 16. In actual use, the handle 15 allows the operator to hold the detector 1 to perform eddy current non-destructive testing on the pipeline.

[0028] Preferably, a tightening block 18 is connected to the side of the fixing block 16 opposite to the rotating shaft 17. The tightening block 18 has a threaded structure and passes through the fixing block 16 to be threadedly connected to the rotating shaft 17. In actual use, after the support plate 21 is adjusted in angle, the tightening block 18 is passed through the fixing block 16 and threadedly tightened to the rotating shaft 17, thereby facilitating the support plate 21 to be stably supported.

[0029] Preferably, a rotating plate 19 is connected to the surface of the rotating shaft 17, and a telescopic plate 20 is connected to the bottom end of the rotating plate 19. A support plate 21 is sleeved on the surface of the telescopic plate 20, and the opening size of the support plate 21 matches the surface size of the telescopic plate 20. In actual use, the angle of the support plate 21 can be easily adjusted by rotating the rotating plate 19. At the same time, the telescopic structure of the support plate 21 makes it easy for the operator to adjust the appropriate angle, improving the convenience of use.

[0030] Preferably, the surface of the telescopic plate 20 is connected to a guide block 22, the center of the surface of the telescopic plate 20 is connected to a sliding block 23, the surface of the sliding block 23 is connected to a screw 24, and the surface of the screw 24 is threadedly connected to a nut 25. In actual use, by sliding and stretching the support plate 21 along the surface of the telescopic plate 20, the guide block 22 on the surface of the support plate 21 is driven to slide along the opening on the surface of the support plate 21. Then, the nut 25 is threadedly tightened on the surface of the screw 24, thereby facilitating the stable installation of the support plate 21 and providing support for the tilt angle detector 1.

[0031] The working principle of this utility model is as follows: First, the docking plate 6 and the assembly plate 7 are assembled and docked on the surface of the detector 4, which drives the positioning plates 9 on both sides of the docking plate 6 to assemble with the positioning seats 10 at both ends of the assembly plate 7. At the same time, the insertion plate 11 is inserted into the opening on the surface of the positioning seat 10, thereby stabilizing the binding strip 8 on the surface of the detector 4. Afterwards, the operator's hand passes through the binding strip 8, and the probe 5 at one end of the detector 4 is used to detect the eddy current inside the pipe. This improves the comfort of the operator's hand when holding the detector 4 for a long time and enhances the non-destructive testing of pipe eddy currents. The effect is as follows: by rotating the rotating plate 19 on the back side of the detector 1, the rotating shaft 17 is driven to rotate inside the fixed block 16. Then, the support plate 21 is slid and stretched on the surface of the telescopic plate 20, while the guide block 22 and sliding block 23 on the surface of the telescopic plate 20 slide along the opening on the surface of the support plate 21. Then, the nut 25 is passed through the thread on the surface of the screw 24 and tightened. At the same time, the tightening block 18 is passed through the fixed block 16 and tightened with the rotating shaft 17, which makes it convenient to place the detector 1 at an angle, so that the staff can observe the pipeline eddy current non-destructive testing data in a timely manner.

[0032] Finally, it should be noted that the above are merely preferred embodiments of this utility model and are not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A pipeline eddy current non-destructive testing device, comprising a testing instrument (1) and a display screen (2) mounted on the surface of the testing instrument (1), characterized in that: The detector (1) has a wire (3) installed on its back side, and the other end of the wire (3) is connected to a detector (4), and one end of the detector (4) is connected to a probe (5). The surface of the detector (4) is connected to a docking plate (6), one side of the docking plate (6) is connected to an assembly plate (7), the surface of the docking plate (6) is connected to a binding strip (8), both ends of the docking plate (6) are connected to positioning plates (9), the side of the assembly plate (7) near the positioning plate (9) is connected to a positioning seat (10), the end of the positioning plate (9) near the positioning seat (10) is connected to an insert plate (11), the inner wall of the opening of the insert plate (11) is connected to a locking spring (12), the other end of the locking spring (12) is connected to a linkage plate (13), and the other side of the linkage plate (13) is connected to a locking buckle (14).

2. The pipeline eddy current nondestructive testing equipment according to claim 1, characterized in that: The recess size of the docking plate (6) and the assembly plate (7) is adapted to the surface size of the detector (4), and the positioning plate (9) is connected to the opening on the surface of the positioning seat (10) by inserting the insert plate (11).

3. The pipeline eddy current nondestructive testing equipment according to claim 1, characterized in that: The locking buckle (14) passes through the opening on one side of the insert plate (11), and the locking spring (12) and the linkage plate (13) form an elastic telescopic structure.

4. The pipeline eddy current nondestructive testing equipment according to claim 1, characterized in that: The back of the detector (1) is connected to a handle (15), and a fixing block (16) is installed on the back of the detector (1). A rotating shaft (17) is connected to one side of the fixing block (16).

5. The pipeline eddy current nondestructive testing equipment according to claim 4, characterized in that: The fixing block (16) is connected to a tightening block (18) on one side of the rotating shaft (17). The tightening block (18) has a threaded structure and passes through the fixing block (16) to be threadedly connected to the rotating shaft (17).

6. The pipeline eddy current nondestructive testing equipment according to claim 4, characterized in that: The rotating shaft (17) is connected to a rotating plate (19), and the bottom end of the rotating plate (19) is connected to a telescopic plate (20). A support plate (21) is sleeved on the surface of the telescopic plate (20), and the opening size of the support plate (21) is adapted to the surface size of the telescopic plate (20).

7. The pipeline eddy current nondestructive testing equipment according to claim 6, characterized in that: The surface of the telescopic plate (20) is connected to a guide block (22), and a sliding block (23) is connected to the center of the surface of the telescopic plate (20). The surface of the sliding block (23) is connected to a screw (24), and the surface of the screw (24) is threaded with a nut (25).