Efficient and portable magnet yoke magnetic pole device
By designing a portable yoke pole device, the coordinated work of multiple components is solved, and the existing device is inconvenient and low detection efficiency is achieved, and efficient detection and convenient portability are achieved when detecting the curvature surface.
Patent Information
- Application Number
- CN202421243979.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-03
- Publication Date
- 2025-05-06
- Estimated Expiration
- 2034-06-03
AI Technical Summary
The conventional yoke pole device has too long and inconvenient power lines, and when the detection surface has curvature, the contact area decreases, resulting in a decrease in detection energy efficiency.
An efficient and portable yoke magnetic pole device is designed, adopting a portable structural design, including fixed shells, handles, connecting blocks, magnetic poles, contacts, electric conveyors, spools, power cords, coil springs, ratchets, springs and flexible magnetic permeable chips. Through the coordinated work of these components, portability and efficient detection are achieved.
When detecting objects with curvature on the surface, the device maintains the maximum contact area through the cooperation of the flexible magnetic permeable sheet and the spring, and improves the detection strength; at the same time, through the design of the spool and ratchet, the power cord is easily stored and the portability of the equipment is enhanced.
Smart Images
Figure CN222838031U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of nondestructive testing equipment, in particular to a highly efficient and portable yoke magnetic pole device. Background Art
[0002] Magnetic particle testing is a non-destructive testing method that uses magnetic phenomena to detect surface and near-surface defects in ferromagnetic materials.
[0003] The existing yoke and magnetic pole device needs to be connected to a power source when in use, and its power cord is too long, making it inconvenient to carry. At the same time, when inspecting objects with a curved surface, the contact area between the object and the device becomes smaller due to the special characteristics of the curved surface, which in turn reduces the detection efficiency of the device. Utility Model Content
[0004] In view of the deficiencies in the prior art, the utility model provides a highly efficient and portable yoke and magnetic pole device, which has the advantages of being easy to carry and highly adaptable, and solves the problems raised by the above-mentioned background technology.
[0005] The utility model provides the following technical solutions: an efficient and portable yoke and magnetic pole device, comprising a yoke device body, a fixed shell is fixedly installed on the outer wall of the yoke device body, a handle is fixedly installed on the top inner wall of the yoke device body, a connecting block is rotatably connected to the bottom of the yoke device body, a magnetic pole is rotatably connected to the bottom of the connecting block, a contact is fixedly installed on the inner wall of the magnetic pole, a power transmission sheet is fixedly installed on the bottom of the inner wall of the fixed shell, a winding shaft is rotatably connected to the top of the power transmission sheet, a power cord is rotatably sleeved on the outer wall of the winding shaft, a coil spring is provided on the top inner wall of the fixed shell, a ratchet is fixedly installed on the top of the winding shaft, a spring 1 is provided on the inner wall of the contact, a pressing sheet is slidably connected to the inner wall of the contact, a flexible magnetic conductive sheet is fixedly installed on the bottom of the pressing sheet, a pawl is rotatably connected to the inner wall of the fixed shell, a pressure rod is fixedly installed on the top of the pawl, a spring 2 is provided on the inner wall of the fixed shell, and a connecting line is fixedly installed on the bottom of the power transmission sheet.
[0006] As a preferred technical solution of the utility model, the fixed end of the power cord extends to the inside of the winding shaft, and its positive and negative poles are overlapped with the coil above the conductive sheet, and the coil above the conductive sheet is electrically connected to the connecting wire at the bottom of the conductive sheet.
[0007] As a preferred technical solution of the utility model, a plastic shell is provided on the outside of the conductive sheet, and the plastic shell completely wraps the leaking part of the conductive sheet.
[0008] As a preferred technical solution of the utility model, the pawl is located inside the ratchet teeth of the ratchet wheel, and one end of the pawl away from the ratchet wheel overlaps one end of the spring 2, and the other end of the spring 2 overlaps the inner wall of the fixed shell.
[0009] As a preferred technical solution of the utility model, there are several springs and pressing plates, and the several springs and pressing plates are arranged in a straight line at the bottom of the contact, and the flexible magnetic conductive sheet is connected to the bottom of the several pressing plates.
[0010] As a preferred technical solution of the utility model, an extension piece is provided on the top of the pressing piece, and the size of the extension piece is matched with the inner wall of the contact.
[0011] Compared with the prior art, the utility model has the following beneficial effects:
[0012] 1. This highly efficient and portable magnetic yoke and magnetic pole device moves the contact toward the object to be detected so that the flexible magnetic conductive sheet at the bottom of the contact contacts the object. At this time, the device continues to be pressed downward so that the flexible magnetic conductive sheet is completely in contact with the surface of the object, and then the flexible magnetic conductive sheet moves upward, driving the pressing sheet to move upward, causing the spring to contract, so that the device can still maintain the maximum contact area when detecting objects with a curvature on the surface, thereby ensuring its detection strength.
[0013] 2. This highly efficient and portable yoke magnetic pole device presses the pressure rod, which drives the pawl to rotate, so that the pawl is disengaged from the ratchet teeth of the ratchet wheel, and the fixation of the ratchet wheel disappears. At this time, the winding spring is restored, driving the winding shaft to rotate. The power cord is wound to the outside of the winding shaft through the rotation of the winding shaft for storage, thereby increasing the portability of the device. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;
[0015] Figure 2 This is a schematic diagram of the cross-sectional structure of the fixed shell of the utility model;
[0016] Figure 3 This is a schematic diagram of the structure of the power transmission sheet of the utility model;
[0017] Figure 4 This is a schematic diagram of the contact structure of the utility model;
[0018] Figure 5 For this utility model Figure 2 Enlarged structural diagram at A in the middle.
[0019] In the figure: 1. yoke device body; 2. fixed shell; 3. handle; 4. connecting block; 5. magnetic pole; 6. contact; 7. power transmission plate; 8. winding shaft; 9. power cord; 10. winding spring; 11. ratchet; 12. spring 1; 13. pressing plate; 14. flexible magnetic conductive plate; 15. pawl; 16. pressure rod; 17. connecting line; 18. spring 2. DETAILED DESCRIPTION
[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0021] See also Figure 1-5 A highly efficient and portable yoke magnetic pole device comprises a yoke device body 1, a fixed shell 2 is fixedly installed on the outer wall of the yoke device body 1, a handle 3 is fixedly installed on the top inner wall of the yoke device body 1, a connecting block 4 is rotatably connected to the bottom of the yoke device body 1, a magnetic pole 5 is rotatably connected to the bottom of the connecting block 4, a contact 6 is fixedly installed on the inner wall of the magnetic pole 5, a power transmission sheet 7 is fixedly installed on the bottom of the inner wall of the fixed shell 2, a winding shaft 8 is rotatably connected to the top of the power transmission sheet 7, a power cord 9 is rotatably sleeved on the outer wall of the winding shaft 8, a coil spring 10 is provided on the top inner wall of the fixed shell 2, and a winding shaft 8 is rotatably connected to the top of the winding shaft 8. A ratchet 11 is fixedly installed, a spring 12 is provided on the inner wall of the contact 6, a pressure piece 13 is slidably connected to the inner wall of the contact 6, a flexible magnetic conductive sheet 14 is fixedly installed on the bottom of the pressure piece 13, a pawl 15 is rotatably connected to the inner wall of the fixed shell 2, a pressure rod 16 is fixedly installed on the top of the pawl 15, a spring 2 18 is provided on the inner wall of the fixed shell 2, and a connecting line 17 is fixedly installed on the bottom of the power transmission sheet 7. In the above structure, the number of connecting blocks 4, magnetic poles 5 and contacts 6 is two, and the two connecting blocks 4, magnetic poles 5 and contacts 6 are symmetrically arranged at the bottom of the yoke device body 1 for testing the metal surface.
[0022] In a preferred embodiment, the fixed end of the power cord 9 extends to the inside of the winding shaft 8, and its positive and negative poles are overlapped with the coil above the conductive sheet 7, and the coil above the conductive sheet 7 is electrically connected to the connecting wire 17 at the bottom of the conductive sheet 7. In the above structure, by connecting the power cord 9 to the power supply, the power cord 9 transmits electric energy to the coil provided above the conductive sheet 7, and the coil continues to transmit the electric energy to the connecting wire 17, and the connecting wire 17 supplies power to the yoke device body 1.
[0023] In a preferred embodiment, a plastic shell is provided on the outside of the conductive sheet 7, and the plastic shell completely wraps the leaking part of the conductive sheet 7. In the above structure, the static electricity generated by the conductive sheet 7 is isolated by the plastic shell on the outside of the conductive sheet 7 so that it will not contact the outside world and cause static electricity to hurt people.
[0024] In a preferred embodiment, the pawl 15 is located inside the ratchet teeth of the ratchet wheel 11, and one end of the pawl 15 away from the ratchet wheel 11 overlaps with one end of the spring 18, and the other end of the spring 18 overlaps with the inner wall of the fixed shell 2. In the above structure, the ratchet teeth of the ratchet wheel 11 are fixed by the pawl 15 so that it cannot rotate in the reverse direction, thereby preventing the winding shaft 8 from rotating in the reverse direction.
[0025] In a preferred embodiment, the number of springs 12 and pressing plates 13 is several, and the several springs 12 and pressing plates 13 are arranged in a straight line at the bottom of the contact 6, and the flexible magnetic conductive sheet 14 is connected to the bottom of the several pressing plates 13. In the above structure, through the several springs 12 and pressing plates 13, when the device is moved downward, when the pressing plate 13 contacts the object, the pressing plate 13 moves upward, causing the spring 12 to contract. At this time, the upward movement of the pressing plate 13 drives the flexible magnetic conductive sheet 14 to move upward, so that the flexible magnetic conductive sheet 14 contacts the surface of the object.
[0026] In a preferred embodiment, an extension piece is provided on the top of the pressing piece 13, and the size of the extension piece is adapted to the inner wall of the contact 6. In the above structure, the pressing piece 13 is fixed by the extension piece on the top of the pressing piece 13 so that it will not separate from the inner wall of the contact 6.
[0027] Working principle: when the device is needed, fix the object to be detected, pull the power cord 9 to move it outward, connect the power cord 9 to the power source, so that the power cord 9 transmits electric energy to the coil provided above the power transmission sheet 7, and the coil continues to transmit the electric energy to the connecting line 17, and supplies power to the yoke device body 1 through the connecting line 17. At this time, place the device directly above the object to be detected, and move the contact 6 downward so that the flexible magnetic sheet 14 at the bottom of the contact 6 contacts the object. At this time, continue to press the device downward, and through the downward pressure, the flexible magnetic sheet 14 is completely fitted with the surface of the object, and then the flexible magnetic sheet 14 moves upward, driving the pressing sheet 13 to move upward, driving the spring The bottom end of spring 12 moves upward, causing spring 12 to contract, so that the device can still maintain the maximum contact area when detecting objects with surface curvature, thereby ensuring its detection strength. At this time, the yoke device body 1 is started, and the yoke device body 1 generates magnetic force to the ratchet 11 through the connecting block 4 and the magnetic pole 5 to detect the surface of the object. When the detection is completed, the power cord 9 is separated from the power supply. At this time, the pressure rod 16 is pressed, and the pressure rod 16 drives the pawl 15 to rotate, so that the pawl 15 is disengaged from the ratchet teeth of the ratchet 11, and the fixation of the ratchet 11 disappears. At this time, the winding spring 10 is restored, driving the winding shaft 8 to rotate, and the power cord 9 is wound to the outside of the winding shaft 8 through the rotation of the winding shaft 8, so that it is stored, thereby increasing the portability of the device.
[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. An efficient and portable yoke magnetic pole device, comprising a yoke device body (1), characterized in that: The outer wall of the yoke device body (1) is fixedly mounted with a fixed shell (2); the top inner wall of the yoke device body (1) is fixedly mounted with a handle (3); the bottom of the yoke device body (1) is rotatably connected with a connecting block (4); the bottom of the connecting block (4) is rotatably connected with a magnetic pole (5); the inner wall of the magnetic pole (5) is fixedly mounted with a contact (6); the bottom of the inner wall of the fixed shell (2) is fixedly mounted with a power transmission sheet (7); the top of the power transmission sheet (7) is rotatably connected with a winding shaft (8); the outer wall of the winding shaft (8) is rotatably sleeved with a power cord (9); the fixed shell The top inner wall of the fixed shell (2) is provided with a coil spring (10), the top of the winding shaft (8) is fixedly installed with a ratchet (11), the inner wall of the contact (6) is provided with a spring 1 (12), the inner wall of the contact (6) is slidably connected with a pressing plate (13), the bottom of the pressing plate (13) is fixedly installed with a flexible magnetic conductive plate (14), the inner wall of the fixed shell (2) is rotatably connected with a pawl (15), the top of the pawl (15) is fixedly installed with a pressure rod (16), the inner wall of the fixed shell (2) is provided with a spring 2 (18), and the bottom of the conductive plate (7) is fixedly installed with a connecting wire (17).
2. The highly efficient and portable yoke and magnetic pole device according to claim 1, characterized in that: The fixed end of the power line (9) extends to the inside of the winding shaft (8), and its positive and negative poles are overlapped with the coil above the conductive sheet (7), and the coil above the conductive sheet (7) is electrically connected to the connecting line (17) at the bottom of the conductive sheet (7).
3. The highly efficient and portable yoke and magnetic pole device according to claim 1, characterized in that: The exterior of the conductive sheet (7) is provided with a plastic shell, and the plastic shell completely wraps the leaking portion of the conductive sheet (7).
4. The highly efficient and portable yoke and magnetic pole device according to claim 1, characterized in that: The pawl (15) is located inside the ratchet teeth of the ratchet wheel (11), and one end of the pawl (15) away from the ratchet wheel (11) overlaps one end of the second spring (18), and the other end of the second spring (18) overlaps the inner wall of the fixed shell (2).
5. The highly efficient and portable yoke and magnetic pole device according to claim 1, characterized in that: The number of the spring one (12) and the pressing sheet (13) is several, and the several springs one (12) and the pressing sheets (13) are arranged in a straight line at the bottom of the contact (6), and the flexible magnetic conductive sheet (14) is connected to the bottom of the several pressing sheets (13).
6. The highly efficient and portable yoke and magnetic pole device according to claim 1, characterized in that: An extension piece is provided on the top of the pressing piece (13), and the size of the extension piece is matched with the inner wall of the contact (6).