Magnetizing liquid bottle fixing device for four-claw magnetic particle flaw detector

By designing a magnetized liquid bottle fixing device, the problems of hand fatigue and uneven spraying under the traditional magnetized liquid spraying method are solved, achieving efficient and stable flaw detection effect, which is suitable for four-claw magnetic particle flaw detectors.

CN224425369UActive Publication Date: 2026-06-30HEILONGJIANG LONGAN TESTING CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HEILONGJIANG LONGAN TESTING CO LTD
Filing Date
2025-07-31
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

Traditional magnetizing fluid spraying methods require two-handed operation, which leads to hand fatigue, uneven spraying, and inconsistent flaw detection results, affecting detection efficiency and safety.

Method used

A magnetized liquid bottle fixing device was designed, including a main frame, side frame, side claw, limiting ring frame and thumb pressing assembly, to realize the rapid installation of magnetized liquid bottles and automatic pressing spraying, reduce manual operation and ensure the consistency of spraying amount and timing.

Benefits of technology

It improves flaw detection efficiency, reduces hand strain, and ensures consistent and efficient flaw detection results, making it suitable for batch flaw detection scenarios.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

This utility model provides a magnetized liquid bottle fixing device for a four-jaw magnetic particle flaw detector, relating to the field of flaw detectors. It includes a main frame, with a lighting head mounted on the lower side wall of the main frame, a handle at the top of the main frame, side frames on both sides of the main frame, and side claws symmetrically mounted on both ends of the side frames; and an auxiliary bottle storage mechanism including a central cylinder. This utility model allows for the direct sliding insertion of the magnetized liquid bottle into the central cylinder, aligning the bottle opening with the limiting ring and locking it in place. The rear cap is then threadedly connected and fixed to the central cylinder, pre-installing the magnetized liquid bottle for rapid installation. During testing, there is no need for manual handling or angled pressing, allowing inspectors to quickly perform flaw detection operations. Automatic auxiliary pressing of the bottle opening pressure head is achieved by holding the handle and pressing the lever with the thumb in a natural posture, with a spring for pressing and resetting, making operation easy and reducing hand fatigue.
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Description

Technical Field

[0001] This utility model relates to the field of flaw detectors, and in particular to a magnetized liquid bottle fixing device for a four-claw magnetic particle flaw detector. Background Technology

[0002] In four-jaw magnetic particle testing, the precise application of magnetizing fluid is a key step in ensuring the testing effect. The principle of magnetic particle testing is that magnetic particles in the magnetizing fluid are adsorbed onto the defects of the workpiece to form magnetic marks. The amount of magnetizing fluid applied, the coverage area, and the timing directly affect the clarity of the magnetic marks.

[0003] Currently, the traditional method of using magnetizing fluid has significant drawbacks. During flaw detection, the operator must hold the flaw detector with one hand and simultaneously hold the magnetizing fluid bottle with the other, then press the nozzle at an angle to spray the liquid. This cumbersome process is not only distracting but also requires constant adjustments to the bottle angle to ensure precise coverage of the workpiece inspection area. Furthermore, maintaining a tilted grip for frequent spraying can lead to fatigue and makes it difficult to apply pressure. In batch flaw detection scenarios, frequent operation is not only inconvenient and laborious but also prone to inconsistent pressure due to hand fatigue, resulting in uneven magnetizing fluid application and inaccurate timing, affecting the consistency of flaw detection results and reducing overall inspection efficiency. Additionally, manually pressing the nozzle places a heavy burden on the hands, easily leading to hand strain over long periods, and is unsuitable for the demands of efficient and precise flaw detection.

[0004] Therefore, it is necessary to provide a new magnetizing liquid bottle fixing device for a four-jaw magnetic particle flaw detector to solve the above-mentioned technical problems. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a magnetized liquid bottle fixing device for a four-claw magnetic particle flaw detector.

[0006] The magnetized liquid bottle fixing device of the four-claw magnetic particle flaw detector provided by this utility model includes: a main frame, on which an illumination lamp head is installed and connected at the lower side wall of the main frame, a handle is provided at the upper position of the main frame, and side frames are provided on both sides of the main frame, with side claws symmetrically installed and connected at both ends of the side frames; an auxiliary bottle storage mechanism, which includes a central cylinder, which is located between the main frame and the handle, a front beam is provided at the front end of the main frame, a limit ring is fixedly connected to one end of the front beam, a rear side cover is provided at the rear end of the central cylinder, and a thumb pressing component is provided at the upper end of the limit ring.

[0007] Preferably, the limiting ring is aligned with the central cylinder, and the rear cover is aligned with the central cylinder.

[0008] Preferably, a convex ring is provided at the rear end of the central cylinder, the outer wall of the convex ring is provided with external threads, the inner wall of the rear cover is provided with internal threads, and the rear cover is threadedly connected to the convex ring.

[0009] Preferably, the thumb pressing component includes an end seat, which is fixedly connected to the main frame. The end seat has two lugs, and a semi-cylindrical groove is provided between the two lugs. Each of the two lugs has a sliding opening, and a pull rod is slidably connected between the two sliding openings. A pressure strip is fixedly connected to the front end of the pull rod, and a lever is fixedly connected to the rear end of the pull rod.

[0010] Preferably, a limiting plate is fixedly connected to the pull rod, the limiting plate is disposed in the semi-cylindrical groove, and a spring is sleeved on the pull rod, one end of the spring is connected to the limiting plate, and the other end of the spring is connected to the side wall of the semi-cylindrical groove.

[0011] Preferably, the lower end of the pressure strip is provided with a buckle plate, the buckle plate is provided with an embedded slot, an auxiliary rod is fixedly connected to the pressure strip, the end seat is provided with a limiting hole, and the auxiliary rod is slidably connected to the limiting hole.

[0012] Compared with related technologies, the magnetized liquid bottle fixing device of the four-claw magnetic particle flaw detector provided by this utility model has the following beneficial effects:

[0013] 1. This utility model allows the magnetized liquid bottle to be directly slid into the central cylinder, so that the bottle mouth is aligned with the limiting ring and snapped in. The rear cap is then directly threaded to the rear convex ring of the central cylinder for sealing and fixation. This pre-installation of the magnetized liquid bottle allows for quick installation, eliminating the need for manual handling or tilting during testing. This saves on operation steps and enables inspectors to quickly perform flaw detection operations. Especially in batch flaw detection scenarios, it can significantly improve overall work efficiency and effectively shorten the operation time compared to traditional methods.

[0014] 2. This utility model allows for automatic assisted pressing of the bottle mouth pressure head by holding the handle and pressing the lever with the thumb in a natural posture. The spring is used to achieve pressing and reset, making operation easy and reducing hand fatigue. Furthermore, the lever cooperates with the buckle, auxiliary rod and limiting hole to ensure a stable pressing process and accurately control the amount and timing of magnetizing liquid spraying, thus ensuring consistent flaw detection results. Attached Figure Description

[0015] Figure 1 A schematic diagram of a preferred embodiment of this utility model;

[0016] Figure 2 for Figure 1 The diagram shows the structure at point A.

[0017] Figure 3 for Figure 2The diagram shows the structure at point B.

[0018] The following are the labels in the diagram: 1. Main frame; 11. Lighting head; 2. Handle; 3. Side frame; 31. Side claw; 4. Central cylinder; 41. Front beam; 42. Limiting ring frame; 43. Rear side cover; 5. End seat; 51. Tie rod; 52. Pressure strip; 53. Pulley; 6. Limiting plate; 61. Spring; 7. Auxiliary rod. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0020] Please refer to the following: Figures 1 to 3 The magnetized liquid bottle fixing device of the four-claw magnetic particle flaw detector includes: a main frame 1, with a lighting head 11 installed and connected on the lower side wall of the main frame 1, a handle 2 at the upper position of the main frame 1, side frames 3 on both sides of the main frame 1, and side claws 31 symmetrically installed and connected on both side frames 3; and an auxiliary bottle storage mechanism, including a central cylinder 4, which is located between the main frame 1 and the handle 2. A front beam 41 is located at the front end of the main frame 1, with a limiting ring frame 42 fixedly connected to one end of the front beam 41. A rear side cover 43 is located at the rear end of the central cylinder 4, and a thumb pressing component is located at the upper end of the limiting ring frame 42.

[0021] In the specific implementation process, such as Figure 1 and Figure 2 As shown, the limiting ring frame 42 is aligned with the central cylinder 4, and the rear cover 43 is aligned with the central cylinder 4.

[0022] It should be noted that the limiting ring 42 is aligned with the central cylinder 4 to ensure that after the magnetized liquid bottle is inserted into the central cylinder 4, the bottle mouth can be accurately locked into the limiting ring 42, thereby achieving radial limiting of the bottle mouth and preventing the bottle body from shaking during spraying.

[0023] The rear cap 43 is aligned with the central tube 4 to ensure that the cap fits tightly with the bottle tail when tightened, preventing axial displacement of the magnetized liquid bottle inside the central tube 4, and enhancing the overall locking and closing performance.

[0024] refer to Figure 1 As shown, a convex ring is provided at the rear end of the central cylinder 4, and an external thread is provided on the outer wall of the convex ring. An internal thread is provided on the inner wall of the rear cover 43, and the rear cover 43 is threadedly connected to the convex ring.

[0025] It should be noted that the threaded connection between the convex ring and the rear cover 43 can axially lock the magnetized liquid bottle by rotating the rear cover 43, which can prevent the rear cover 43 from loosening due to vibration during flaw detection operations. At the same time, it facilitates quick disassembly and replacement of new magnetized liquid bottles, making the operation more convenient.

[0026] refer to Figure 2 and Figure 3 As shown, the thumb pressing component includes an end seat 5, which is fixedly connected to the main frame 1. The end seat 5 is provided with two lugs, and a semi-cylindrical groove is provided between the two lugs. Each lug is provided with a sliding opening, and a pull rod 51 is slidably connected between the two sliding openings. A pressure strip 52 is fixedly connected to the front end of the pull rod 51, and a lever 53 is fixedly connected to the rear end of the pull rod 51.

[0027] It should be noted that: the end seat 5 forms a stable support structure through two lugs, and the sliding fit between the sliding mouth and the pull rod 51 ensures that the pressing action is transmitted in a straight line, avoiding the dispersion of force;

[0028] The push bar 53 is designed with an arc structure to fit the thumb pressing trajectory. The pressure bar 52 is vertically connected to the pull rod 51 to ensure that the pressing force is directly applied to the bottle mouth pressure head.

[0029] refer to Figure 3 As shown, a limiting plate 6 is fixedly connected to the pull rod 51. The limiting plate 6 is located in the semi-cylindrical groove. A spring 61 is sleeved on the pull rod 51. One end of the spring 61 is connected to the limiting plate 6, and the other end of the spring 61 is connected to the side wall of the semi-cylindrical groove.

[0030] It should be noted that the limiting plate 6 limits the compression stroke of the spring 61 to ensure accurate reset after each press, thus ensuring the consistency of the spraying interval.

[0031] refer to Figure 2 and Figure 3 As shown, the lower end of the pressure strip 52 is provided with a buckle plate, the buckle plate is provided with an embedded slot, an auxiliary rod 7 is fixedly connected to the pressure strip 52, and a limiting hole is provided in the end seat 5. The auxiliary rod 7 is slidably connected to the limiting hole.

[0032] It should be noted that the recessed slot of the buckle is compatible with the shape of common magnetized liquid bottle pressure heads (compatible with pressure heads with a diameter of 12-18mm). When pressed, it can automatically align and lock the pressure head to prevent slippage.

[0033] The auxiliary rod 7 and the limiting hole work together to form a guiding structure, which avoids the spray direction deviation caused by the skew when pressing, and ensures that the magnetizing liquid accurately covers the detection area.

[0034] The working principle of the magnetized liquid bottle fixing device of the four-jaw magnetic particle flaw detector provided by this utility model is as follows: When using the magnetized liquid bottle fixing device of the four-jaw magnetic particle flaw detector, first slide the magnetized liquid bottle directly into the central cylinder 4, so that the bottle mouth end of the magnetized liquid bottle is aligned with the limiting ring frame 42 and snapped in, and then directly thread the rear sealing cap 43 to the rear end convex ring of the central cylinder 4 for sealing and fixing, thus completing the quick installation of the magnetized liquid bottle in advance.

[0035] When the magnetizing liquid needs to be sprayed, hold the handle 2 and press the lever 53 with your thumb in a comfortable and natural posture. The lever 53 drives the pull rod 51 to slide along the sliding opening in the two lugs. The pressure strip 52 at the front end of the pull rod 51 retracts and tightens, so that the embedded slot in the lower end of the buckle directly locks and presses the magnetizing liquid bottle head. At the same time, the spring 61 is compressed by the limiting plate 6. After the spraying is completed, simply release the lever 53. The spring 61 elastically returns to its original position, driving the pressure strip 52 to move upward, completing one press spray. This allows for easy control of the magnetizing liquid spraying. The magnetizing liquid bottle can also be pre-installed, so there is no need to manually pick it up and press it at an angle during testing, which is very convenient.

[0036] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A magnetizing liquid bottle fixing device for a four-jaw magnetic particle flaw detector, characterized in that, include: The main frame (1) has a lighting lamp head (11) installed on the lower side wall of the main frame (1), a handle (2) is provided at the upper position of the main frame (1), and side frames (3) are provided on both sides of the main frame (1). Side claws (31) are symmetrically installed on both ends of the side frames (3). An auxiliary bottle storage mechanism includes a central cylinder (4), which is located between the main frame (1) and the handle (2). A front beam (41) is provided at the front end of the main frame (1), and a limiting ring frame (42) is fixedly connected to one end of the front beam (41). A rear cover (43) is provided at the rear end of the central cylinder (4), and a thumb pressing component is provided at the upper end of the limiting ring frame (42).

2. The magnetizing liquid bottle fixing device for the four-jaw magnetic particle flaw detector according to claim 1, characterized in that, The limiting ring (42) is aligned with the central cylinder (4), and the rear cover (43) is aligned with the central cylinder (4).

3. The magnetizing liquid bottle fixing device for the four-jaw magnetic particle flaw detector according to claim 1, characterized in that, The rear end of the central cylinder (4) is provided with a convex ring, the outer wall of the convex ring is provided with an external thread, the inner wall of the rear cover (43) is provided with an internal thread, and the rear cover (43) is threadedly connected to the convex ring.

4. The magnetizing liquid bottle fixing device for the four-jaw magnetic particle flaw detector according to claim 1, characterized in that, The thumb pressing assembly includes an end seat (5), which is fixedly connected to the main frame (1). The end seat (5) has two lugs, and a semi-cylindrical groove is provided between the two lugs. Each of the two lugs has a sliding opening, and a pull rod (51) is slidably connected between the two sliding openings. A pressure strip (52) is fixedly connected to the front end of the pull rod (51), and a lever (53) is fixedly connected to the rear end of the pull rod (51).

5. The magnetizing liquid bottle fixing device for the four-claw magnetic particle flaw detector according to claim 4, characterized in that, A limiting plate (6) is fixedly connected to the pull rod (51). The limiting plate (6) is located in the semi-cylindrical groove. A spring (61) is sleeved on the pull rod (51). One end of the spring (61) is connected to the limiting plate (6), and the other end of the spring (61) is connected to the side wall of the semi-cylindrical groove.

6. The magnetizing liquid bottle fixing device for the four-claw magnetic particle flaw detector according to claim 4, characterized in that, The lower end of the pressure strip (52) is provided with a buckle plate, the buckle plate is provided with an embedded slot, an auxiliary rod (7) is fixedly connected to the pressure strip (52), the end seat (5) is provided with a limiting hole, and the auxiliary rod (7) is slidably connected to the limiting hole.