Telescopic arm for magnetic probe

By designing the telescopic and drive components of the telescopic arm, the problem of difficulty in adjusting the position of the magnetic levitation liquid spraying in complex environments was solved, thus expanding the spraying range of the magnetic levitation liquid and achieving comprehensive detection.

CN224326926UActive Publication Date: 2026-06-05HEBEI HUAJIAN INSPECTION & TESTING CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202521788345.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-08-21
Publication Date
2026-06-05
Estimated Expiration
2035-08-21

AI Technical Summary

Technical Problem

The existing support arm of the magnetic detector is fixed, which makes it impossible to adjust the spraying position of the magnetic levitation liquid in complex or narrow environments, resulting in incomplete detection and easy missed detection.

Method used

A telescopic support arm was designed, comprising a telescopic component and a drive component. Through the cooperation of the drive source and the hinge seat, the support seat and the connecting seat can be adjusted. The magnetic levitation liquid spraying pipe can be tilted and extended to expand the spraying range.

Benefits of technology

It enables flexible adjustment of the magnetic levitation liquid spraying position, improves the comprehensiveness and flexibility of detection, and avoids missed detections.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224326926U_ABST
    Figure CN224326926U_ABST
Patent Text Reader

Abstract

The application discloses a telescopic supporting arm for a magnetic detector, and belongs to the technical field of magnetic detectors. The telescopic supporting arm mainly comprises a supporting arm, a telescopic assembly arranged on the supporting arm, a supporting rod rotatably connected to the inner side of the supporting arm, a supporting seat connected to the surface of the supporting rod, and a fixing seat connected to the surface of the supporting seat. The telescopic supporting arm for the magnetic detector is convenient for the supporting seat and the fixing seat to be inclined and adjusted through the extension driving force or the retraction driving force of the first driving source and the hinging action of the first hinge seat and the second hinge seat, so that the corresponding magnetic suspension liquid spraying pipe can be inclined and adjusted, and the spraying direction of the magnetic suspension liquid spraying pipe can be adjusted. The two magnetic suspension liquid spraying pipes can be driven to extend outward or retract inward under the rotating action of the first adapter ring and the second adapter ring through the two second driving sources, the spraying range of the magnetic suspension liquid can be expanded through the driving of the magnetic suspension liquid spraying pipe to retract inward and extend outward, and the flexibility of use is improved.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This application relates to the field of support-bar magnetic detector technology, specifically to a telescopic support arm for a support-bar magnetic detector. Background Technology

[0002] The strut-type magnetic particle detector, also known as the strut-type magnetic particle flaw detector, is a portable testing device based on the principle of magnetic particle flaw detection. It is mainly used to detect defects such as cracks, folds, delamination, and slag inclusions on and near the surface of ferromagnetic material workpieces. Its core components include the main unit of the magnetic particle flaw detector, the strut, the probe, and the magnetic particle application device.

[0003] With its portability and flexible operation, the strut magnetic detector is widely used in various scenarios. For example, in the aviation industry, it can be used to inspect aircraft engine parts and fuselage structures; in the railway sector, it can be used to inspect rails and locomotive parts; in automobile manufacturing, it can be used to inspect the quality of car chassis and engine parts; in the shipbuilding industry, it can be used to inspect ship hull structures and ship engine components; at the same time, it also plays an important role in pressure vessel inspection and other fields, providing strong support for ensuring the safe operation of various equipment and workpieces.

[0004] However, most current support rod magnetic detectors have fixed support arms. In some complex testing environments, such as when testing the internal structure of large equipment or workpieces in narrow spaces, the fixed length of the support rod has certain limitations. It cannot adjust the spraying position of the magnetic suspension liquid containing iron powder particles, resulting in the inability to comprehensively test the workpiece and easily causing missed detections.

[0005] Therefore, it is necessary to provide a telescopic outrigger for the support magnetic detector to solve the above problems.

[0006] It should be noted that the information disclosed in this background section is only for understanding the background technology of this application concept, and therefore may include information that does not constitute prior art. Utility Model Content

[0007] Based on the aforementioned problems in the existing technology, the problem to be solved by this application is to provide a telescopic support arm for a support-bar magnetic detector, which achieves the effect of conveniently adjusting the position of the support arm to improve the flexibility of magnetic levitation liquid spraying.

[0008] The technical solution adopted by this application to solve its technical problem is: a telescopic support arm for a support-bar magnetic detector, including a support arm, a telescopic component is provided on the support arm, a support rod is rotatably connected to the inner side of the support arm, a support seat is connected to the surface of the support rod, a fixed seat is connected to the surface of the support seat, a drive component is provided on the fixed seat, two connecting rods are connected to the inner side of the fixed seat, two connecting seats are rotatably connected to the surface of the fixed seat, magnetic levitation liquid spraying pipes are connected to the surfaces of the two connecting seats, and an outer pipe is connected to the top end of the two magnetic levitation liquid spraying pipes.

[0009] The surface of the telescopic component is connected to the surface of the support arm to drive the support base to rotate and adjust.

[0010] The surface of the drive assembly is connected to the surface of the fixed base to drive the two connecting bases to extend and retract in the horizontal direction.

[0011] Furthermore, the telescopic assembly includes a first hinge seat, which is disposed on the surface of the support arm. A first drive source is hinged to the inner side of the first hinge seat, and the power output end of the first drive source is poweredly connected to a second hinge seat.

[0012] Furthermore, the surface of the second hinge seat is connected to the surface of the support seat.

[0013] Furthermore, the drive assembly includes two first adapter rings and two second adapter rings. The two first adapter rings are rotatably disposed on the surfaces of the two connecting rods, and a second drive source is connected to the surface of each of the two first adapter rings. The two second adapter rings are respectively disposed on the power output ends of the two second drive sources.

[0014] Furthermore, the inner sides of the two second adapter rings are rotatably connected to the surfaces of the two connecting seats, respectively.

[0015] Furthermore, the support base rotates around the support rod as the center.

[0016] Furthermore, the two magnetic levitation liquid spraying pipes are symmetrically arranged on the front and rear sides of the vertical center line of the fixed base.

[0017] The beneficial effects of this application are as follows: The telescopic support arm of the magnetic detector provided by this application facilitates the tilt adjustment of the support base and the fixed base through the extension or retraction driving force of the first driving source and the hinge action of the first hinge seat and the second hinge seat, thereby facilitating the corresponding control of the tilt adjustment of the magnetic levitation liquid spraying pipe and the adjustment of the spraying direction of the magnetic levitation liquid spraying pipe; the two second driving sources facilitate the extension or retraction of the two magnetic levitation liquid spraying pipes to the outside or the inside under the rotation of the first and second transition rings, thereby expanding the spraying range of the magnetic levitation liquid and improving the flexibility of use.

[0018] In addition to the purposes, features, and advantages described above, this application has other purposes, features, and advantages. A further detailed description of this application will be provided below with reference to the figures. Attached Figure Description

[0019] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments and descriptions of this application are used to explain this application and do not constitute an undue limitation of this application. In the drawings:

[0020] Figure 1 This is an overall schematic diagram of the telescopic support arm used in the support-bar magnetic detector of this application;

[0021] Figure 2 This is a bottom view of the telescopic support arm used in the support-bar magnetic detector of this application;

[0022] Figure 3 This is a partial schematic diagram of the telescopic support arm used in the strut magnetic detector of this application;

[0023] Figure 4 This is a partial cross-sectional schematic diagram of the telescopic support arm used in the strut magnetic detector of this application.

[0024] The following are the labeling elements in the figure:

[0025] 1. Support arm; 2. Telescopic assembly; 21. First hinge seat; 22. First drive source; 23. Second hinge seat; 3. Drive assembly; 31. First adapter ring; 32. Second drive source; 33. Second adapter ring; 4. Support rod; 5. Support base; 6. Fixing base; 7. Connecting rod; 8. Connecting base; 9. Magnetic levitation liquid spraying pipe; 10. External pipe. Detailed Implementation

[0026] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0027] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0028] like Figure 1-4 As shown, this application provides a telescopic support arm for a magnetic detector, including a support arm 1, a telescopic component 2 on the support arm 1, a support rod 4 rotatably connected to the inner side of the support arm 1, a support seat 5 connected to the surface of the support rod 4 for connection, a fixed seat 6 connected to the surface of the support seat 5, a drive component 3 on the fixed seat 6, two connecting rods 7 connected to the inner side of the fixed seat 6, two connecting seats 8 rotatably connected to the surface of the fixed seat 6, magnetic levitation liquid spraying pipes 9 connected to the surface of both connecting seats 8 for easy spraying of magnetic levitation liquid containing iron powder particles, and an outer pipe 10 connected to the top of each of the two magnetic levitation liquid spraying pipes 9.

[0029] The surface of the telescopic component 2 is connected to the surface of the support arm 1 to drive the support base 5 to rotate and adjust.

[0030] The surface of the drive assembly 3 is connected to the surface of the fixed base 6 to drive the two connecting bases 8 to extend and retract in the horizontal direction.

[0031] The telescopic assembly 2 includes a first hinge seat 21, which is disposed on the surface of the support arm 1. A first drive source 22 is hinged to the inner side of the first hinge seat 21. The power output end of the first drive source 22 is poweredly connected to a second hinge seat 23, so as to cooperate with the first hinge seat 21 to perform the hinge function.

[0032] The surface of the second hinge seat 23 is connected to the surface of the support seat 5, which facilitates the rotation of the support seat 5 to adjust its position.

[0033] The drive assembly 3 includes two first adapter rings 31 and two second adapter rings 33. The two first adapter rings 31 are rotatably mounted on the surfaces of the two connecting rods 7 respectively. The surfaces of the two first adapter rings 31 are connected to the second drive source 32 to facilitate the provision of driving force. The two second adapter rings 33 are respectively mounted on the power output ends of the two second drive sources 32.

[0034] The inner sides of the two second adapter rings 33 are rotatably connected to the surfaces of the two connecting seats 8, which facilitates the extension and retraction of the connecting seats 8.

[0035] The support base 5 rotates around the support rod 4, which facilitates the rotation of the support base 5.

[0036] The two magnetic levitation liquid spray pipes 9 are symmetrically arranged on the front and rear sides of the vertical center line of the fixed base 6, which helps to improve the uniformity of spraying.

[0037] Working principle: First, professionals install the support arm 1 with the magnetic particle machine. If it is necessary to adjust the spraying position of the magnetic levitation liquid spraying pipe 9, the extension or retraction driving force of the first drive source 22 controls the left end of the magnetic levitation liquid spraying pipe 9 to extend upward or retract downward. If the magnetic levitation liquid spraying pipe 9 is driven to adjust upward, the support seat 5 is controlled to extend downward through the first drive source 22. Since the support rod 4 is fixedly connected to the support seat 5 but rotatably connected to the support arm 1, the left end of the support seat 5 and the fixed seat 6 is tilted upward under the connection of the support rod 4, thereby lifting the left end of the magnetic levitation liquid spraying pipe 9 upward. Similarly, if it is necessary to drive the left end of the magnetic levitation liquid spraying pipe 9 to tilt downward, the bottom end of the support seat 5 is lifted upward by the retraction driving force of the first drive source 22 in conjunction with the hinge action of the second hinge seat 23, thereby pressing down the left end of the magnetic levitation liquid spraying pipe 9 to adjust the spraying position of the magnetic levitation liquid spraying pipe 9.

[0038] When adjusting the extension and retraction of the magnetic levitation spray tube 9, under the rotational connection of the corresponding first adapter ring 31 and second adapter ring 33, the two second drive sources 32 drive the two second adapter rings 33 to push out symmetrically, thereby causing the two magnetic levitation spray tubes 9 to extend outward. Similarly, the two second drive sources 32 drive the two second adapter rings 33 to retract to the right, at which time the two magnetic levitation spray tubes 9 are driven to retract inward. By driving the magnetic levitation spray tubes 9 to retract inward and extend outward, the spraying range of the magnetic levitation liquid is expanded, improving the flexibility of use.

[0039] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A telescopic support arm for a strut magnetic detector, characterized in that: Includes a support arm (1), on which a telescopic component (2) is provided, a support rod (4) is rotatably connected to the inner side of the support arm (1), a support seat (5) is connected to the surface of the support rod (4), a fixed seat (6) is connected to the surface of the support seat (5), a drive component (3) is provided on the fixed seat (6), two connecting rods (7) are connected to the inner side of the fixed seat (6), two connecting seats (8) are rotatably connected to the surface of the fixed seat (6), a magnetic levitation liquid spraying pipe (9) is connected to the surface of each of the two connecting seats (8), and an outer pipe (10) is connected to the top of each of the two magnetic levitation liquid spraying pipes (9). The surface of the telescopic component (2) is connected to the surface of the support arm (1) to drive the support base (5) to rotate and adjust. The surface of the drive assembly (3) is connected to the surface of the fixed base (6) to drive the two connecting bases (8) to extend and retract in the horizontal direction.

2. The telescopic support arm for the magnetic detector according to claim 1, characterized in that: The telescopic assembly (2) includes a first hinge seat (21), which is disposed on the surface of the support arm (1). A first drive source (22) is hinged to the inner side of the first hinge seat (21), and the power output end of the first drive source (22) is poweredly connected to a second hinge seat (23).

3. The telescopic support arm for the strut magnetic detector according to claim 2, characterized in that: The surface of the second hinge seat (23) is connected to the surface of the support seat (5).

4. The telescopic support arm for the strut magnetic detector according to claim 1, characterized in that: The drive assembly (3) includes two first adapter rings (31) and two second adapter rings (33). The two first adapter rings (31) are rotatably disposed on the surfaces of the two connecting rods (7). The surfaces of the two first adapter rings (31) are connected to a second drive source (32). The two second adapter rings (33) are disposed on the power output ends of the two second drive sources (32).

5. The telescopic support arm for the strut magnetic detector according to claim 4, characterized in that: The inner sides of the two second adapter rings (33) are rotatably connected to the surfaces of the two connecting seats (8).

6. The telescopic support arm for the strut magnetic detector according to claim 1, characterized in that: The support base (5) rotates around the support rod (4) as the center.

7. The telescopic support arm for the strut magnetic detector according to claim 1, characterized in that: The two magnetic levitation liquid spray pipes (9) are symmetrically arranged on the front and rear sides of the vertical center line of the fixed base (6).