Magnetic self-locking type buckle structure

By using a magnetic self-locking buckle structure, and utilizing the attraction of magnets and the design of limiting grooves, the problems of difficult quick disassembly and damage to the outer shell when replacing magnets in the existing technology are solved, thus achieving the effect of quick disassembly and non-destructive replacement.

CN224260633UActive Publication Date: 2026-05-19GUANGZHOU PENGBO ENTERPRISES CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GUANGZHOU PENGBO ENTERPRISES CO LTD
Filing Date
2025-07-02
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

Existing self-locking buckles require considerable finger strength during use, making quick disassembly difficult, and traditional magnetic fixing methods can easily damage the outer casing during replacement.

Method used

It adopts a magnetic self-locking buckle structure, which uses the attraction between magnet one and magnet two to achieve the pre-positioning and rigid fixation of the buckle. Combined with the design of buckle limiting groove and spiral limiting pin, it allows for quick disassembly, and the magnet can be replaced without damage by mechanical limiting through unlocking pin and limiting cap.

Benefits of technology

It achieves alignment and stable connection during rapid disassembly, while allowing for non-destructive replacement of magnets, avoiding shell deformation and scrap.

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Abstract

The utility model relates to the technical field of self-locking buckles, and discloses a magnetic self-locking buckle structure which comprises a buckle shell, a buckle is fixedly connected to the top of the buckle shell, a first magnet is rotationally connected to the inner wall of the buckle shell, and the top of the first magnet penetrates through the inner wall of the buckle shell and extends. A second buckle shell is arranged on the outer wall of the buckle shell in a contact mode, and a buckle limiting groove is formed in the inner wall of the second buckle shell. When the second buckle shell is attached to the surface of the second buckle shell, the buckle enters the buckle limiting groove formed in the second buckle shell, meanwhile, due to the mutual attraction force between the first magnet and the second magnet, a gap is formed between the top ends of the second buckle shell and the second buckle shell, and therefore the buckle can be clamped. And meanwhile, the buckle is attached to the surface of the inner wall formed by the buckle limiting groove, so that through the design of magnet pre-positioning, buckle rigid fixing and gap flexible compensation, blind installation, namely alignment, can be achieved through magnetic attraction guiding in the quick disassembling process.
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Description

Technical Field

[0001] This utility model relates to the field of self-locking buckle technology, and in particular to a magnetic self-locking buckle structure. Background Technology

[0002] A self-locking snap-fit ​​structure is a mechanical design that allows connecting parts to automatically lock and maintain a stable connection under specific conditions. It is typically used in situations requiring a quick, secure connection that can be easily unlocked when needed. The self-locking snap-fit ​​structure operates based on a physical locking mechanism, achieving stability and security of the connection without the need for external force or additional tools.

[0003] Most existing self-locking buckles work by squeezing the plastic buckle to deform it and detach it from the buckle housing. However, this connection method requires a lot of finger strength during use, making it unsuitable for products that frequently require quick disassembly. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a magnetic self-locking buckle structure.

[0005] This utility model is achieved using the following technical solution: a magnetic self-locking buckle structure, including a buckle housing, a buckle fixedly connected to the top of the buckle housing, a magnet rotatably connected to the inner wall of the buckle housing, the top of the magnet rotatably penetrating and extending through the inner wall of the buckle housing, a second buckle housing contacting the outer wall of the buckle housing, a buckle limiting groove formed on the inner wall of the second buckle housing, the outer wall of the buckle housing contacting the inner wall of the buckle limiting groove, a second magnet rotatably connected to the inner wall of the second buckle housing, the bottom of the second magnet contacting the top of the first magnet, an adjustment groove formed on the left side of the buckle housing, and an adjustment groove formed on the right side of the second buckle housing.

[0006] As a further improvement to the above solution, there are two buckles, which are symmetrically arranged with magnet one as the center, and there are two buckle limiting grooves, which are symmetrically arranged with magnet two as the center.

[0007] Through the above technical solution, while the second buckle housing is attached to the surface of the second buckle housing, the buckle will enter the buckle limiting groove opened in the second buckle housing. At the same time, due to the mutual attraction between magnet one and magnet two, a gap will be created at the top of the second buckle housing and the first buckle housing, and the buckle will be attached to the inner wall surface opened in the buckle limiting groove.

[0008] As a further improvement to the above solution, the inner wall of the buckle housing is provided with an avoidance groove, one outer wall of the magnet is rotatably connected to the inner wall of the avoidance groove, a guide groove is provided at the bottom of the avoidance groove, and one outer wall of the magnet is slidably connected to the inner wall of the guide groove.

[0009] As a further improvement to the above solution, a limit cap is slidably connected to the inner wall of the guide groove, a limit groove is opened on the front of the buckle housing, and a paperclip limit pin is slidably connected to the inner wall of the limit groove.

[0010] As a further improvement to the above solution, paperclip limiting grooves are provided on both sides of the limiting groove, the outer wall of the paperclip limiting pin is in contact with the inner wall of the paperclip limiting groove, and the paperclip limiting pin is in contact with the outer wall of the magnet.

[0011] As a further improvement to the above solution, two limiting grooves are provided, and the two limiting grooves are symmetrically arranged with the first magnet as the center. Two spiral limiting pins are provided, and the two spiral limiting pins are symmetrically arranged with the first magnet as the center.

[0012] As a further improvement to the above solution, the top of the second buckle housing is provided with an unlocking pin limiting groove, and an unlocking pin is engaged with the inner wall of the unlocking pin limiting groove.

[0013] With the above technical solution, when the magnetic force generated by the magnet inside the buckle housing weakens and is corroded, the unlocking pin inside the unlocking pin limiting groove can be taken out outward, and then inserted into the limiting groove along the surface of the paperclip limiting pin, so that the paperclip limiting pin retracts inward and disengages from the paperclip limiting groove.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] This utility model, by attaching the second snap-fit ​​housing to the surface of the snap-fit ​​housing, allows the snap-fit ​​to enter the snap-fit ​​limiting groove opened in the second snap-fit ​​housing. At the same time, due to the mutual attraction between the first and second magnets, a gap is created at the top of the snap-fit ​​housing and the second snap-fit ​​housing, causing the snap-fit ​​to adhere to the inner wall surface of the snap-fit ​​limiting groove. Thus, through the design of pre-positioning with magnets, rigid fixing of the snap-fit, and flexible compensation of gaps, blind installation and alignment can be achieved during rapid disassembly through magnetic attraction.

[0016] This invention addresses the issue of magnet 1 inside the snap-fit ​​housing weakening or corroding. When the magnetic force of magnet 1 weakens or corrodes, the unlocking pin can be removed from the unlocking pin limiting groove. Then, the unlocking pin is inserted into the limiting groove along the surface of the paperclip limiting pin, causing it to retract inwards and disengage from the groove. The paperclip limiting pin and unlocking pin are then removed outwards, causing magnet 1 inside the clearance groove to lose its limiting position. The limiting cap is then removed outwards, and magnet 1 is rotated so that its protrusion aligns with the guide groove, allowing it to slide outwards, thus completing the disassembly of magnet 1. Magnet 2 inside the snap-fit ​​housing uses the same limiting method as magnet 1. Traditional magnet fixing methods, such as glue bonding, welding, or non-removable screws, require damage to the housing during replacement, resulting in a high deformation rate or even complete scrapping. This design achieves non-destructive replacement through mechanical limiting and guiding disassembly. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the cross-sectional structure of the buckle shell of this utility model;

[0019] Figure 3 This is a schematic diagram of the buckle limiting groove structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the magnet of this utility model;

[0021] Figure 5 This is a schematic diagram of the limiting groove structure of this utility model;

[0022] Figure 6 This is a schematic diagram of the clearance groove structure of this utility model;

[0023] Figure 7 This is a schematic diagram of the guide groove structure of this utility model;

[0024] Figure 8 This is a schematic diagram of the unlocking pin structure of this utility model.

[0025] Explanation of key symbols:

[0026] 1. Buckle housing; 2. Buckle; 3. Magnet one; 4. Buckle housing two; 5. Buckle limiting groove; 6. Magnet two; 7. Adjustment groove; 8. Adjustment groove two; 9. Clearance groove; 10. Guide groove; 11. Limiting groove; 12. Limiting cap; 13. Paperclip limiting pin; 14. Paperclip limiting groove; 15. Unlocking pin limiting groove; 16. Unlocking pin. Detailed Implementation

[0027] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0028] Example:

[0029] Please combine Figure 1-8 This embodiment of a magnetic self-locking buckle structure includes a buckle housing 1, a buckle 2 fixedly connected to the top of the buckle housing 1, a magnet 3 rotatably connected to the inner wall of the buckle housing 1, the top of the magnet 3 penetrating through the inner wall of the buckle housing 1 and extending thereto, a buckle housing 4 contacting the outer wall of the buckle housing 1, a buckle limiting groove 5 being formed on the inner wall of the buckle housing 4, the outer wall of the buckle 2 contacting the inner wall of the buckle limiting groove 5, a magnet 6 rotatably connected to the inner wall of the buckle housing 4, the bottom of the magnet 6 contacting the top of the magnet 3, an adjustment groove 7 being formed on the left side of the buckle housing 1, and an adjustment groove 8 being formed on the right side of the buckle housing 4.

[0030] There are two buckles 2, which are symmetrically arranged with magnet 1 3 as the center. There are two buckle limiting grooves 5, which are symmetrically arranged with magnet 2 6 as the center.

[0031] The inner wall of the buckle housing 1 is provided with a relief groove 9, the outer wall of magnet 3 is rotatably connected to the inner wall of the relief groove 9, the bottom of the relief groove 9 is provided with a guide groove 10, and the outer wall of magnet 3 is slidably connected to the inner wall of the guide groove 10.

[0032] A limit cap 12 is slidably connected to the inner wall of the guide groove 10, and a limit groove 11 is opened on the front of the buckle housing 1. A spiral limit pin 13 is slidably connected to the inner wall of the limit groove 11.

[0033] The limiting groove 11 has paperclip limiting grooves 14 on both sides. The outer wall of the paperclip limiting pin 13 is in contact with the inner wall of the paperclip limiting groove 14, and the outer wall of the paperclip limiting pin 13 is in contact with the outer wall of the magnet 3.

[0034] There are two limiting grooves 11, which are symmetrically arranged with magnet 3 as the center. There are two spiral limiting pins 13, which are symmetrically arranged with magnet 3 as the center.

[0035] The top of the snap-on outer casing 24 is provided with an unlocking pin limiting groove 15, and an unlocking pin 16 is engaged with the inner wall of the unlocking pin limiting groove 15.

[0036] The implementation principle of the magnetic self-locking buckle structure in this embodiment is as follows: While the buckle housing 2 4 is attached to the surface of the buckle housing 1, the buckle 2 enters the buckle limiting groove 5 opened in the buckle housing 2 4. Simultaneously, due to the mutual attraction between magnet 1 3 and magnet 2 6, a gap is created between the tops of the buckle housing 1 and the buckle housing 2 4, causing the buckle 2 to adhere to the inner wall surface of the buckle limiting groove 5. Thus, through the design of magnet pre-positioning, buckle rigid fixation, and gap flexible compensation, blind installation and alignment can be achieved during rapid disassembly via magnetic attraction. When the magnetic force generated by magnet 1 3 inside the buckle housing 1 weakens or is corroded, the unlocking pin 16 inside the unlocking pin limiting groove 15 can be removed outwards. Then, the paperclip is inserted into the limiting groove 11 along the surface of the paperclip limiting pin 13, causing the paperclip limiting pin 13 to retract inward and disengage from the paperclip limiting groove 14. Then, the paperclip limiting pin 13 and the unlocking pin 16 are taken out, causing the magnet 3 inside the clearance groove 9 to lose its limiting position. By taking out the limiting cap 12 and then rotating the magnet 3, the protrusion of the magnet 3 is aligned with the guide groove 10, thereby causing the magnet 3 to slide outward, thus completing the disassembly of the magnet 3. The magnet 6 inside the snap-fit ​​housing 2 4 has the same limiting method as the magnet 3. Traditional magnet fixing methods, such as glue bonding, welding, or non-removable screws, require damage to the housing during replacement, resulting in a high deformation rate of the housing, or even direct scrapping. This design achieves non-destructive replacement through mechanical limiting and guiding disassembly.

[0037] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A magnetic self-locking buckle structure, characterized in that, The device includes a snap-fit ​​housing (1), a snap-fit ​​(2) fixedly connected to the top of the snap-fit ​​housing (1), a magnet (3) rotatably connected to the inner wall of the snap-fit ​​housing (1), the top of the magnet (3) penetrating through the inner wall of the snap-fit ​​housing (1) and extending thereto, a snap-fit ​​housing (4) contacting the outer wall of the snap-fit ​​housing (1), a snap-fit ​​limiting groove (5) opened on the inner wall of the snap-fit ​​housing (4), the outer wall of the snap-fit ​​(2) contacting the inner wall of the snap-fit ​​limiting groove (5), a magnet (6) rotatably connected to the inner wall of the snap-fit ​​housing (4), the bottom of the magnet (6) contacting the top of the magnet (3), an adjustment groove (7) opened on the left side of the snap-fit ​​housing (1), and an adjustment groove (8) opened on the right side of the snap-fit ​​housing (4).

2. The magnetic self-locking buckle structure as described in claim 1, characterized in that: Two buckles (2) are provided, and the two buckles (2) are symmetrically arranged with magnet one (3) as the center. Two buckle limiting grooves (5) are provided, and the two buckle limiting grooves (5) are symmetrically arranged with magnet two (6) as the center.

3. The magnetic self-locking buckle structure as described in claim 1, characterized in that: The inner wall of the buckle housing (1) is provided with a relief groove (9), the outer wall of the magnet (3) is rotatably connected to the inner wall of the relief groove (9), the bottom of the relief groove (9) is provided with a guide groove (10), and the outer wall of the magnet (3) is slidably connected to the inner wall of the guide groove (10).

4. The magnetic self-locking buckle structure as described in claim 3, characterized in that: The guide groove (10) has a slidable cap (12) connected to its inner wall, and the buckle housing (1) has a slidable groove (11) on its front side. The inner wall of the slidable groove (11) has a spiral slidable pin (13).

5. The magnetic self-locking buckle structure as described in claim 4, characterized in that: The limiting groove (11) has paperclip limiting grooves (14) on both sides. The outer wall of the paperclip limiting pin (13) is in contact with the inner wall of the paperclip limiting groove (14), and the outer wall of the paperclip limiting pin (13) is in contact with the outer wall of the magnet (3).

6. The magnetic self-locking buckle structure as described in claim 5, characterized in that: Two limiting grooves (11) are provided, and the two limiting grooves (11) are symmetrically arranged with magnet one (3) as the center. Two spiral limiting pins (13) are provided, and the two spiral limiting pins (13) are symmetrically arranged with magnet one (3) as the center.

7. The magnetic self-locking buckle structure as described in claim 1, characterized in that: The top of the buckle housing 2 (4) is provided with an unlocking pin limiting groove (15), and an unlocking pin (16) is engaged with the inner wall of the unlocking pin limiting groove (15).