Portable magnetic yoke flaw detector with spray tank

The portable magnetic yoke flaw detector, which integrates a spray can and a stirring device, solves the problems of cumbersome inspection process and waste of consumables in traditional equipment, and achieves uniform spraying of magnetic suspension and efficient detection, adapting to complex working conditions.

CN224500514UActive Publication Date: 2026-07-14MAANSHAN SPECIAL EQUIP SUPERVISION & INSPECTION CENT

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
MAANSHAN SPECIAL EQUIP SUPERVISION & INSPECTION CENT
Filing Date
2025-07-08
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

The traditional portable magnetic yoke flaw detector has a cumbersome inspection process, uneven spraying of magnetic suspension fluid, which affects the accuracy and efficiency of defect identification, and also results in serious waste of consumables, making it unsuitable for complex working conditions.

Method used

The spray can is integrated into the flaw detector. The magnetic suspension is stirred by a motor-driven connecting rod and a baffle, and then transported by a water pump to ensure that the magnetic suspension is sprayed evenly, avoids sedimentation, and improves detection accuracy and efficiency.

Benefits of technology

It improves the continuity and accuracy of the testing process, reduces waste of consumables, adapts to testing needs in complex environments, and enhances testing efficiency and safety.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The utility model relates to the technical field of magnetic particle flaw detection, and disclose a portable magnetic yoke flaw detector with spray tank, including mounting seat, still include: the right -hand member of mounting seat is equipped with the connecting seat, the inside of connecting seat is equipped with the mounting groove, the top of connecting seat is provided with the connecting box, the top fixed connection of connecting box has the loading box, the outer wall fixed connection of loading box has the liquid adding port, the bottom of loading box is equipped with the liquid outlet, the inner wall mounting groove has the water pump, the right -hand member of liquid outlet is provided with the liquid outlet pipe, the right -hand member of liquid outlet pipe is equipped with the spray head, through the integration of spray tank in flaw detector, solve the problem that traditional separation type spray utensil is fussy, the cooperation is poor, promote the coherence of detection procedure, avoid magnetic powder deposition, guarantee magnetic suspension solution concentration uniformity, promote the accuracy of defect development, reduce the material waste and operation difficulty while improving the detection efficiency, precision while cooperating.
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Description

Technical Field

[0001] This utility model relates to the field of magnetic particle flaw detection technology, specifically a portable magnetic yoke flaw detector with a spray can. Background Technology

[0002] Portable magnetic yoke flaw detectors are non-destructive testing devices based on the principle of magnetic particle inspection. They are mainly used for the rapid detection of surface and near-surface defects in ferromagnetic materials. Modern portable magnetic yoke flaw detectors adopt a lightweight design and integrate AC / DC magnetization circuits. They generate a closed magnetic field through the magnetic yoke and use magnetic powder aggregation to display defects. Key technologies include high-energy permanent magnets or pulse magnetization technology, low-power circuit design, and optimized human-machine interface. They are suitable for complex working conditions such as field and high altitude. This equipment is widely used in in-service inspection in aerospace, oil pipeline, railway and other fields, significantly improving inspection efficiency and safety.

[0003] In traditional flaw detection methods, the application of magnetic suspension fluid and the magnetic yoke flaw detection operation are separate, requiring manual operation with independent sprayers. This results in a cumbersome process, uneven spraying of magnetic suspension fluid, and other problems that can affect the accuracy of defect identification and detection efficiency. Manual spraying makes it difficult to control the amount and pressure, and magnetic powder accumulation or incomplete coverage is prone to occur when inspecting delicate workpieces. Furthermore, the amount of sprayed fluid cannot be dynamically adjusted according to the magnetization parameters, making it easy to miss deep defects. At the same time, the collaborative operation of multiple tools slows down efficiency, results in serious waste of consumables, and the fragmented equipment also greatly reduces portability and on-site adaptability, increasing detection costs and difficulty. Utility Model Content

[0004] The purpose of this invention is to provide a portable magnetic yoke flaw detector with a spray can to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a portable magnetic yoke flaw detector with a spray can, including a mounting base, and further comprising:

[0006] A connecting seat is installed at the right end of the mounting base. The connecting seat has an installation groove inside. A connecting box is provided at the top of the connecting seat. A receiving box is fixedly connected to the top of the connecting box. A liquid inlet is fixedly connected to the outer wall of the receiving box. A liquid outlet is provided at the bottom of the receiving box. A water pump is installed on the inner wall of the mounting groove. A liquid inlet is provided at the output end of the water pump. A liquid outlet pipe is provided at the right end of the liquid outlet pipe. A nozzle is installed at the right end of the liquid outlet pipe.

[0007] Preferably, a motor is installed on the top of the container, a connecting rod is fixedly connected to the drive end of the motor, a mounting bracket is rotatably connected to the upper end of the outer wall of the connecting rod, a mounting block is fixedly connected to the bottom of the outer wall of the connecting rod, and multiple spoilers are fixedly connected to the outer wall of the mounting block.

[0008] Preferably, gripping blocks are fixedly connected to both the left and right sides of the outer wall of the mounting base, magnetic yoke detection arms are installed at the bottom of both gripping blocks, an interface is fixedly connected to the left end of the mounting base, buttons are provided on both the left and right sides of the bottom of the mounting base, and a light is installed at the bottom of the mounting base.

[0009] Preferably, the interior of the connecting box is located outside the water pump.

[0010] Preferably, the inner wall of the liquid outlet is located at the pumping end of the water pump.

[0011] Preferably, the top of the mounting bracket is fixedly connected to the top of the inner wall of the container.

[0012] Preferably, the outer wall of the spoiler is disposed inside the container.

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

[0014] This invention solves the problems of cumbersome operation and poor coordination of traditional separate sprayers by integrating the spray can into the flaw detector, thereby improving the continuity of the inspection process. The motor drives the connecting rod, mounting block and baffle inside the housing to rotate, which can effectively stir the magnetic suspension, avoid magnetic powder precipitation, ensure uniform magnetic suspension concentration and improve the accuracy of defect development. While improving inspection efficiency and accuracy through mutual cooperation, it also reduces the waste of consumables and the difficulty of operation, and is suitable for various inspection scenarios in industrial sites. Attached Figure Description

[0015] Figure 1 The front view provided for this utility model;

[0016] Figure 2 A cross-sectional view of the connector provided by this utility model;

[0017] Figure 3 Internal structural diagram of the container provided by this utility model;

[0018] Figure 4 A schematic diagram of the spoiler structure provided by this utility model.

[0019] In the diagram: 1. Mounting base; 2. Connecting base; 3. Mounting slot; 4. Connecting box; 5. Container box; 6. Liquid outlet; 7. Water pump; 8. Infusion port; 9. Liquid outlet pipe; 10. Nozzle; 11. Motor; 12. Connecting rod; 13. Mounting bracket; 14. Mounting block; 15. Baffle; 16. Grip block; 17. Magnetic yoke detection arm; 18. Interface; 19. Button; 20. Lighting lamp; 21. Liquid filling port. Detailed Implementation

[0020] 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.

[0021] Please see Figures 1-4 As shown, a portable magnetic yoke flaw detector with a spray can includes a mounting base 1, and further includes:

[0022] A connecting seat 2 is installed on the right end of the mounting base 1. The connecting seat 2 serves as a connecting bridge between the spraying equipment and the flaw detector body. An installation groove 3 is provided inside the connecting seat 2. A connecting box 4 is installed on the top of the connecting seat 2. A receiving box 5 is fixedly connected to the top of the connecting box 4. A liquid inlet 21 is fixedly connected to the outer wall of the receiving box 5. The magnetic suspension can be added into the receiving box 5 through the liquid inlet 21, thereby reducing the working time for filling the magnetic suspension and improving work efficiency. An outlet 6 is provided at the bottom of the receiving box 5. A water pump 7 is installed on the inner wall of the mounting groove 3. The mounting groove 3 can accurately position and securely install the water pump 7. Through its suitable size and shape, the water pump 7 can be... The water pump 7 is firmly fixed to prevent it from shifting due to vibration or movement during flaw detection operations, ensuring the stability of the magnetic suspension pump. The interior of the connecting box 4 is located outside the water pump 7, and the inner wall of the outlet 6 is located at the water pump 7's suction end. The output end of the water pump 7 is equipped with a delivery port 8, and the right end of the delivery port 8 is equipped with an outlet pipe 9. The right end of the outlet pipe 9 is equipped with a nozzle 10. The water pump 7 generates suction and pressure through mechanical operation, drawing out the magnetic suspension from the container 5 and accurately delivering it to the nozzle 10 through the delivery port 8 and outlet pipe 9. This replaces traditional manual spraying, ensuring that the magnetic suspension covers the workpiece surface evenly with stable pressure, avoiding missed detections.

[0023] A motor 11 is installed on the top of the container 5. A connecting rod 12 is fixedly connected to the drive end of the motor 11. A mounting frame 13 is rotatably connected to the upper end of the outer wall of the connecting rod 12. The mounting frame 13 provides stable support for the stirring components such as the motor 11, connecting rod 12, and baffle 15, ensuring their stability during operation and preventing shaking that could affect the stirring effect. The top of the mounting frame 13 is fixedly connected to the top of the inner wall of the container 5. A mounting block 14 is fixedly connected to the bottom of the outer wall of the connecting rod 12. Multiple baffles 15 are fixedly connected to the outer wall of the mounting block 14. The outer walls of the baffles 15 are located inside the container 5. The drive end of the motor 11 drives the mounting block 14 and baffles 15 to rotate at high speed through the connecting rod 12, continuously stirring the magnetic suspension in the container 5. This prevents the magnetic powder from settling unevenly due to gravity. This dynamic stirring process ensures that the magnetic suspension is always in a uniformly mixed state before spraying, allowing the magnetic powder to effectively adsorb defects on the surface of the workpiece and improve the clarity of the developing image.

[0024] Both sides of the outer wall of the mounting base 1 are fixedly connected to gripping blocks 16. Magnetic yoke detection arms 17 are installed at the bottom of both gripping blocks 16. The magnetic yoke detection arms 17 have built-in excitation components. After being powered on, they can induce a uniform magnetic field on the surface of the workpiece, causing a leakage magnetic field to form at the defect. Combined with the magnetic suspension liquid sprayed by the spray can, the magnetic powder is accurately adsorbed and developed, thereby identifying defects on and near the surface of the workpiece. An interface 18 is fixedly connected to the left end of the mounting base 1. The interface 18 is connected to an external power supply or battery through a power interface 18 to power the various components of the flaw detector, ensuring the stable operation of the motor 11, water pump 7, etc. Buttons 19 are provided on both the left and right sides of the bottom of the mounting base 1. Buttons 19 can turn the equipment on and off with one click, ensuring safe start and stop. An illumination lamp 20 is installed at the bottom of the mounting base 1. The illumination lamp 20 can accurately illuminate the magnetic powder development area, simplify the operation process, reduce ambient light interference, and ensure nighttime operation, effectively improving defect identification, detection efficiency, and operational safety, and expanding applicability in complex environments.

[0025] Working principle: When this portable magnetic yoke flaw detector with a spray can is working, it is first connected to a power source through the interface 18 on the left end of the mounting base 1. Press the bottom button 19 to start the device and turn on the lighting 20. After the magnetic yoke detection arm 17 is powered on, a uniform magnetic field is induced on the surface of the workpiece, causing a leakage magnetic field to form at the defect. At this time, the motor 11 installed on the top of the housing 5 drives the connecting rod 12, the mounting block 14 and the baffle 15 to rotate, continuously stirring the magnetic suspension to prevent magnetic powder from settling and ensure its uniform concentration. At the same time, the water pump 7 installed in the mounting groove 3 of the connecting base 2 is started. The magnetic suspension is drawn through the liquid outlet 6 at the bottom of the container 5 using suction, and then transported to the nozzle 10 through the inlet 8 and outlet pipe 9. It is evenly sprayed onto the surface of the workpiece, allowing the magnetic powder to be accurately adsorbed and developed, thereby identifying surface and near-surface defects of the workpiece. When completed, the button 19 is pressed to stop the operation, thereby effectively stirring the magnetic suspension, avoiding magnetic powder sedimentation, ensuring uniform concentration of the magnetic suspension, and improving the accuracy of defect development. While improving detection efficiency and accuracy, it also reduces waste of consumables and operation difficulty, and is suitable for various detection scenarios in industrial sites.

[0026] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A portable magnetic yoke flaw detector with a spray can, comprising a mounting base (1), characterized in that, Also includes: A connecting seat (2) is installed on the right end of the mounting base (1). An installation groove (3) is provided inside the connecting seat (2). A connecting box (4) is provided on the top of the connecting seat (2). A container box (5) is fixedly connected to the top of the connecting box (4). A liquid inlet (21) is fixedly connected to the outer wall of the container box (5). A liquid outlet (6) is provided at the bottom of the container box (5). A water pump (7) is installed on the inner wall of the mounting groove (3). A liquid inlet (8) is provided at the output end of the water pump (7). A liquid outlet pipe (9) is provided at the right end of the liquid outlet (8). A nozzle (10) is installed at the right end of the liquid outlet pipe (9).

2. A portable magnetic yoke flaw detector with a spray can according to claim 1, characterized in that: A motor (11) is installed on the top of the container (5). A connecting rod (12) is fixedly connected to the drive end of the motor (11). A mounting bracket (13) is rotatably connected to the upper end of the outer wall of the connecting rod (12). A mounting block (14) is fixedly connected to the bottom of the outer wall of the connecting rod (12). Multiple spoilers (15) are fixedly connected to the outer wall of the mounting block (14).

3. A portable magnetic yoke flaw detector with a spray can according to claim 1, characterized in that: The mounting base (1) has gripping blocks (16) fixedly connected to the left and right sides of its outer wall. Magnetic yoke detection arms (17) are installed at the bottom of the two gripping blocks (16). An interface (18) is fixedly connected to the left end of the mounting base (1). Buttons (19) are provided on the left and right sides of the bottom of the mounting base (1). A lighting lamp (20) is installed at the bottom of the mounting base (1).

4. A portable magnetic yoke flaw detector with a spray can according to claim 1, characterized in that: The interior of the connecting box (4) is located outside the water pump (7).

5. A portable magnetic yoke flaw detector with a spray can according to claim 1, characterized in that: The inner wall of the outlet (6) is located at the pumping end of the water pump (7).

6. A portable magnetic yoke flaw detector with a spray can according to claim 2, characterized in that: The top of the mounting bracket (13) is fixedly connected to the top of the inner wall of the container (5).

7. A portable magnetic yoke flaw detector with a spray can according to claim 2, characterized in that: The outer wall of the spoiler (15) is located inside the container (5).