A quick-release device with a buckle

Abstract

This utility model discloses a quick-release device with a buckle, including a base, a locking component, and a quick-release buckle: the upper surface of the base has a limiting cavity with a pin hole, and the bottom of the base has a sliding groove; the locking component includes a locking pin, a pressing part, and a return spring; the locking pin is movably engaged in the pin hole, the bottom of the locking pin has a first magnetic attraction component, the pressing part is movably engaged in the sliding groove, the upper surface of the pressing part has a second magnetic attraction component and a third magnetic attraction component, the second magnetic attraction component and the first magnetic attraction component repel each other, and the third magnetic attraction component and the first magnetic attraction component attract each other; the quick-release buckle has an entering state and a locking state on its moving path; in the entering state, the locking pin is pressed back into the pin hole by the quick-release buckle; in the locking state, the locking pin is released by the quick-release buckle, the second magnetic attraction component and the first magnetic attraction component repel each other, and the quick-release buckle abuts against the inner wall of the limiting cavity by the action of the locking pin. Its advantage is that the quick-release buckle can be quickly locked in the limiting cavity and can also be quickly unlocked out of the limiting cavity.

Description

Technical Field

[0001] This utility model relates to the field of quick-release device technology, and in particular to a quick-release device with a buckle. Background Technology

[0002] When using cameras and other photographic equipment, people usually use camera straps. Traditional camera straps are connected to the camera body by a rope, which is complicated and troublesome to install and remove. Some camera straps are connected to the camera by a quick-release buckle, but quick-release buckles on the market are complex in structure, prone to fatigue damage, difficult to remove, and have poor performance.

[0003] The inventor designed a quick-release device with a buckle, which solves the problems of traditional quick-release devices being difficult to install, having unstable connections, and being difficult to disassemble. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a quick-release device with a buckle, which addresses the shortcomings of the existing technology.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution.

[0006] A quick-release device with a buckle, comprising:

[0007] A base, wherein a limiting cavity is formed on the upper surface of the base, a pin hole is provided at the inlet end of the limiting cavity, and a sliding groove is provided at the bottom of the base, the sliding groove communicating with the pin hole;

[0008] A locking component includes a locking pin, a pressing part, a return spring, a first magnetic accommodating element, a second magnetic accommodating element, and a third magnetic accommodating element. The locking pin is movably engaged in a pin hole. The bottom of the locking pin is provided with a first magnetic accommodating element. The pressing part is movably engaged in a sliding groove. The return spring is used to reset the pressing part in the sliding groove. The upper surface of the pressing part is provided with a second magnetic accommodating element and a third magnetic accommodating element adjacent to each other. The third magnetic accommodating element is close to the outer end of the pressing part. The second magnetic accommodating element and the first magnetic accommodating element repel each other, while the third magnetic accommodating element and the first magnetic accommodating element attract each other. Under the action of the return spring, the second magnetic accommodating element moves closer to the first magnetic accommodating element, and the repulsion between the second and first magnetic accommodating elements pushes the top of the locking pin out of the pin hole. When an external force presses the pressing part, the third magnetic accommodating element moves closer to the first magnetic accommodating element, and the attraction between the third and first magnetic accommodating elements causes the top of the locking pin to retract into the pin hole.

[0009] The quick-release buckle is movably disposed relative to the base. It has an engaged state and a locked state along its movement path. In the engaged state, the locking pin is pressed back into the pin hole by the quick-release buckle. In the locked state, the locking pin is released by the quick-release buckle, and the second magnetic attractor and the first magnetic attractor repel each other, pushing the top of the locking pin out of the pin hole. The quick-release buckle abuts against the inner wall of the limiting cavity through the action of the locking pin and is fixed within the limiting cavity.

[0010] In a preferred embodiment, the base includes a base body and a limiting stop, the entry cavity is formed on the base body, and the limiting stop extends at least partially toward the inner side of the base body and surrounds the base body to form the limiting cavity; the quick-release buckle includes a quick-release buckle body and a limiting periphery, the limiting periphery protrudes from the outer wall of the quick-release buckle body, and in the locked state, the limiting periphery abuts against the inner side of the limiting stop under the action of the locking member.

[0011] In a preferred embodiment, the upper surface of the base is further provided with an entry cavity, which is connected to the limiting cavity. The entry cavity is located on the entry end side of the limiting cavity. In the entering state, the quick-release buckle is at least partially accommodated in the entry cavity.

[0012] In a preferred embodiment, the quick-release buckle has a limiting part at its rear end. Under the action of the return spring, the second magnetic attractor approaches the first magnetic attractor, and the second magnetic attractor and the first magnetic attractor repel each other and push the top of the locking pin out of the pin hole. The top of the locking pin abuts against the limiting part. When an external force presses the pressing part, the third magnetic attractor approaches the first magnetic attractor, and the third magnetic attractor and the first magnetic attractor attract each other. The top of the locking pin retracts into the pin hole and disengages from the limiting part, and the quick-release buckle can be removed.

[0013] In a preferred embodiment, the limiting portion is formed on the rear end face of the quick-release buckle.

[0014] In a preferred embodiment, the limiting part is a limiting groove, limiting hole, or blind hole. Under the action of the return spring, the second magnetic attractor approaches the first magnetic attractor, and the second magnetic attractor and the first magnetic attractor repel each other and push the top of the locking pin out of the pin hole. The top of the locking pin is inserted into the limiting groove, limiting hole, or blind hole.

[0015] A preferred embodiment is that the quick-release buckle has a hanging cord at its front end.

[0016] The quick-release device with buckle provided in this embodiment of the utility model has at least the following beneficial effects: Under normal circumstances, the top of the locking pin extends out of the pin hole, the quick-release buckle enters the limiting cavity, and the quick-release buckle presses against the top of the locking pin, causing the top of the locking pin to retract into the pin hole. The quick-release buckle is pushed parallel to the base towards the limiting cavity. Under the action of external force, the quick-release buckle is pushed into the limiting cavity. After the quick-release buckle enters the limiting cavity, the front end of the quick-release buckle abuts against the inner wall of the limiting cavity. At this time, the quick-release buckle is not pressed against the top of the locking pin. The second magnetic attractor and the first magnetic attractor repel each other and push the top of the locking pin out of the pin hole. The top of the locking pin blocks the rear end of the quick-release buckle. At this time, the quick-release buckle is restricted in the limiting cavity, and the quick-release buckle is in the locked state. When the quick-release buckle needs to be removed, press the pressing part and push the quick-release buckle. The pressing part moves towards the slide groove. At this time, the third magnetic component approaches the first magnetic component. The third magnetic component and the first magnetic component attract each other and pull the top of the locking pin back into the pin hole. The quick-release buckle can be pushed out from the limiting cavity. Pull the quick-release buckle upward perpendicular to the direction of entry into the cavity, and the quick-release buckle will separate from the base. The quick-release buckle can be quickly fixed and separated from the base.

[0017] The above description is merely an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this utility model more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0018] Figure 1 This is a three-dimensional representation of the present invention. Figure 1 ;

[0019] Figure 2 This is a three-dimensional representation of the present invention. Figure 2 ;

[0020] Figure 3 This is a cross-sectional view of the present invention;

[0021] Figure 4 This is the explosive of this utility model. Figure 1 ;

[0022] Figure 5 This is the explosive of this utility model. Figure 2 ;

[0023] Figure 6 This is a sectional view of the base in this utility model;

[0024] Figure 7 This is a perspective view of the quick-release buckle in this utility model;

[0025] Figure 8 This is a perspective view of the locking component in this utility model;

[0026] Figure 9 This is a cross-sectional view of the locking component in this utility model. Detailed Implementation

[0027] To illustrate the ideas and objectives of this application, the following description will be provided in conjunction with the accompanying drawings and specific embodiments.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and foregoing drawings of this application are intended to cover non-exclusive inclusion. The terms "first," "second," "left," "right," etc., in the specification, claims, or foregoing drawings of this application are used to distinguish different objects, not to describe a particular order.

[0029] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0030] like Figures 1 to 9 As shown, a quick-release device with a buckle includes: a base 10, a locking member 30, and a quick-release buckle 20.

[0031] like Figures 1 to 6 As shown, the base 10 has a limiting cavity 12 on its upper surface. The entry end of the limiting cavity 12 is provided with a pin hole 111. The bottom of the base 10 is provided with a sliding groove 13, which communicates with the pin hole 111.

[0032] like Figures 4 to 9As shown, the locking member 30 includes a locking pin 31, a pressing part 32, a return spring 33, a first magnetic attractor 34, a second magnetic attractor 35, and a third magnetic attractor 36. The locking pin 31 is movably engaged in the pin hole 111, and the bottom of the locking pin 31 is provided with the first magnetic attractor 34. The pressing part 32 is movably engaged in the slide groove 13, and the return spring 33 is used to reset the pressing part 32 in the slide groove 13. The upper surface of the pressing part 32 is provided with the second magnetic attractor 35 and the third magnetic attractor 36 adjacent to each other, and the third magnetic attractor 36 is close to the pressing part 32. At the outer end, the second magnetic 35 and the first magnetic 34 repel each other, and the third magnetic 36 and the first magnetic 34 attract each other; under the action of the return spring 33, the second magnetic 35 approaches the first magnetic 34, the second magnetic 35 and the first magnetic 34 repel each other and push the top of the locking pin 31 out of the pin hole 111; when the external force presses the pressing part 32, the third magnetic 36 approaches the first magnetic 34, the third magnetic 36 and the first magnetic 34 attract each other, and the top of the locking pin 31 retracts into the pin hole 111.

[0033] like Figures 1 to 9 As shown, the quick-release buckle 20 is movably disposed relative to the base 10. The quick-release buckle 20 has an engaged state and a locked state on its moving path. In the engaged state, the locking pin 31 is pressed back into the pin hole 111 by the quick-release buckle 20. In the locked state, the locking pin 31 is released by the quick-release buckle 20, and the second magnetic suction member 35 and the first magnetic suction member 34 repel each other and push the top of the locking pin 31 out of the pin hole 111. The quick-release buckle 20 abuts against the inner wall of the limiting cavity through the action of the locking pin 31 and is fixed in the limiting cavity.

[0034] like Figures 1 to 9 As shown, the quick-release buckle 20 enters the limiting cavity 12 from the entry end of the limiting cavity 12. It is pushed parallel to the base 10 towards the limiting cavity 12. Under the action of external force, the quick-release buckle 20 is pushed into the limiting cavity 12 along the entry end of the limiting cavity 12. After the quick-release buckle 20 enters the limiting cavity 12, the front end of the quick-release buckle 20 abuts against the inner wall of the limiting cavity 12. The second magnetic suction member 35 and the first magnetic suction member 34 repel each other and push the top of the locking pin 31 out of the pin hole. The quick-release buckle 20 abuts against the inner wall of the limiting cavity 12 through the action of the locking pin 31 and is fixed in the limiting cavity.

[0035] Locking pin 31 locks quick-release buckle 20 in the limiting cavity 12, and quick-release buckle 20 is in the locked state. When quick-release buckle 20 needs to be removed, pressing part 32 is applied under external force, and third magnetic suction member 36 moves with pressing part 32 to the inner end of slide groove 13. The third magnetic suction member 36 approaches the first magnetic suction member 34, and the third magnetic suction member 36 and the first magnetic suction member 34 attract each other and pull the top of locking pin 31 back into pin hole 111. When quick-release buckle 20 is pushed with force at the end away from the entry cavity 11, quick-release buckle 20 can be pushed out from the limiting cavity 12. Pulling quick-release buckle 20 upward perpendicular to the entry cavity 11 separates quick-release buckle 20 from base 10.

[0036] like Figures 1 to 9 As shown, under normal circumstances, the top of the locking pin 31 extends out of the pin hole 111, and the quick-release buckle 20 enters the limiting cavity 12 from the entry end of the limiting cavity 12. The quick-release buckle 20 presses against the top of the locking pin 31, causing the top of the locking pin 31 to retract into the pin hole 111. The quick-release buckle 20 is pushed parallel to the base 10 towards the limiting cavity 12. Under the action of external force, the quick-release buckle 20 is pushed into the limiting cavity 12. After the quick-release buckle 20 enters the limiting cavity 12, the front end of the quick-release buckle 20 abuts against the inner wall of the limiting cavity 12. At this time, the quick-release buckle 20 is not pressing against the top of the locking pin 31, and the top of the locking pin 31 is released. The second magnetic suction member 35 and the first magnetic suction member 34 repel each other and push the top of the locking pin 31 out of the pin hole 111. The top of the locking pin 31 blocks the rear end of the quick-release buckle 20. At this time, the quick-release buckle 20 is restricted in the limiting cavity 12, and the quick-release buckle 20 is in the locked state.

[0037] like Figures 1 to 9 As shown, when it is necessary to remove the quick-release buckle 20, press the pressing part 32 and push the quick-release buckle 20. The pressing part 32 moves towards the inner end of the slide groove 13. At this time, the third magnetic suction member 36 approaches the first magnetic suction member 34. The third magnetic suction member 36 and the first magnetic suction member 34 attract each other and pull the top of the locking pin 31 to retract the pin hole 111. The quick-release buckle 20 can be pushed out from the limiting cavity 12. Pull the quick-release buckle 20 upward perpendicular to the entry cavity 11 and the quick-release buckle 20 separates from the base 10.

[0038] like Figures 1 to 9 As shown, the bottom of the locking pin 31 is recessed inward with a first fixing groove 311, and the first magnetic member 34 is fixed in the first fixing groove 311. The upper surface of the pressing part 32 is provided with a second fixing groove and a third fixing groove. The second magnetic member 35 is fixed in the second fixing groove, and the third magnetic member 36 is fixed in the third fixing groove. There are two return springs 33.

[0039] like Figures 1 to 9As shown, the first magnetic attractor 34, the second magnetic attractor 35, and the third magnetic attractor 36 are all magnets. The third magnetic attractor 36 has the opposite magnetism to the first magnetic attractor 34, while the second magnetic attractor 35 has the same magnetism as the first magnetic attractor 34. When the side of the first magnetic attractor 34 closest to the pressing part 32 is the south pole, the side of the second magnetic attractor 35 closest to the entry cavity 11 is the south pole, and the side of the third magnetic attractor 36 closest to the entry cavity 11 is the north pole. When the side of the first magnetic attractor 34 closest to the pressing part 32 is the north pole, the side of the second magnetic attractor 35 closest to the entry cavity 11 is the north pole, and the side of the third magnetic attractor 36 closest to the entry cavity 11 is the south pole.

[0040] like Figures 1 to 9 As shown, in this utility model, the inner end of the pressing part 32 is connected to the inner end of the slide groove 13 through the return spring 33, and the outer end of the pressing part 32 extends out of the slide groove 13.

[0041] like Figures 1 to 9 As shown, the base 10 includes a base body 14 and a limiting stop 15. The entry cavity 11 is opened on the base body 14. The limiting stop 15 extends at least partially toward the inner side of the base body 14 and surrounds the base body 14 to form the limiting cavity 12. The quick hook 20 includes a quick hook body 21 and a limiting periphery 22. The limiting periphery 22 protrudes from the outer wall of the quick hook body 21. In the locked state, the limiting periphery 22 abuts against the inner side of the limiting stop 15 under the action of the locking member 30.

[0042] like Figures 1 to 9 As shown, under the action of external force, the quick-release buckle 20 is pushed into the limiting cavity 12, and the front end of the quick-release buckle 20 abuts against the limiting stop 15 to prevent the quick-release buckle 20 from slipping away from the limiting cavity 12. The limiting periphery 22 abuts against the inner side of the limiting stop 15 under the action of the locking member 30, and the quick-release buckle 20 is in the locked state.

[0043] like Figures 1 to 9 As shown, the upper surface of the base 10 is also provided with an entry cavity 11, which is connected to the limiting cavity 12. The entry cavity 11 is located on the entry end side of the limiting cavity 12. In the entry state, the quick hook 20 is at least partially accommodated in the entry cavity 11.

[0044] like Figures 1 to 9 As shown, the quick-release buckle 20 enters the limiting cavity 12 from the entry cavity 11. The front opening of the limiting cavity 12 is small and the rear opening is large, so that the quick-release buckle 20 can be locked in the limiting cavity 12.

[0045] like Figures 1 to 9As shown, the quick-release buckle 20 has a limiting part at its rear end. Under the action of the return spring 33, the second magnetic member 35 approaches the first magnetic member 34. The second magnetic member 35 and the first magnetic member 34 repel each other and push the top of the locking pin 31 out of the pin hole. The top of the locking pin 31 abuts against the limiting part. When the external force presses the pressing part 32, the third magnetic member 36 approaches the first magnetic member 34. The third magnetic member 35 and the first magnetic member 34 attract each other. The top of the locking pin 31 retracts into the pin hole 111 and disengages from the limiting part, and the quick-release buckle 20 can be removed.

[0046] like Figures 1 to 9 As shown, under normal circumstances, the top of the locking pin 31 extends out of the pin hole 111, and the quick-release buckle 20 is inserted into the entry cavity 11. The quick-release buckle 20 presses against the top of the locking pin 31, causing the top of the locking pin 31 to retract into the pin hole 111. The quick-release buckle 20 is pushed parallel to the base 10 towards the limiting cavity 12. Under the action of external force, the quick-release buckle 20 is pushed into the limiting cavity 12 along the entry cavity 11. When the quick-release buckle 20 enters the limiting cavity 12, the front end of the quick-release buckle 20 abuts against the inner wall of the limiting cavity 12. The quick-release buckle 20 does not press against the top of the locking pin 31. The second magnetic suction member 35 and the first magnetic suction member 34 repel each other and push the top of the locking pin 31 out of the pin hole 111. The top of the locking pin 31 abuts against the limiting part. At this time, the quick-release buckle 20 is restricted in the limiting cavity 12, and the quick-release buckle 20 is in the locked state.

[0047] like Figures 1 to 9 As shown, when it is necessary to remove the quick-release buckle 20, press the pressing part 32 and push the quick-release buckle 20. The pressing part 32 moves towards the inner end of the slide groove 13. At this time, the third magnetic suction member 36 approaches the first magnetic suction member 34. The third magnetic suction member 36 and the first magnetic suction member 34 attract each other and pull the top of the locking pin 31 to retract the pin hole 111. The top of the locking pin 31 disengages from the limiting part, and the quick-release buckle 20 can enter the entry cavity 11 from the limiting cavity 12. Pull the quick-release buckle 20 upward perpendicular to the entry cavity 11, and the quick-release buckle 20 separates from the base 10.

[0048] In some embodiments, such as Figures 1 to 9 As shown, the limiting part is a limiting groove, limiting hole or blind hole. Under the action of the reset spring 33, the second magnetic suction member 35 approaches the first magnetic suction member 34. The second magnetic suction member 35 and the first magnetic suction member 34 repel each other and push the top of the locking pin 31 out of the pin hole. The top of the locking pin 31 is inserted into the limiting groove, limiting hole or blind hole.

[0049] like Figures 1 to 9As shown, under normal circumstances, the top of the locking pin 31 extends out of the pin hole 111, and the quick-release buckle 20 is inserted into the entry cavity 11. The quick-release buckle 20 presses against the top of the locking pin 31, causing the top of the locking pin 31 to retract into the pin hole 111. The quick-release buckle 20 is pushed parallel to the base 10 towards the limiting cavity 12. Under the action of external force, the quick-release buckle 20 is pushed into the limiting cavity 12 along the entry cavity 11. After the quick-release buckle 20 enters the limiting cavity 12, the front end of the quick-release buckle 20 abuts against the inner wall of the limiting cavity 12. The quick-release buckle 20 does not press against the top of the locking pin 31. The second magnetic suction member 35 and the first magnetic suction member 34 repel each other and push the top of the locking pin 31 out of the pin hole 111. The top of the locking pin 31 is inserted into the limiting groove 23, the limiting hole or the blind hole. At this time, the quick-release buckle 20 is restricted in the limiting cavity 12 and the quick-release buckle 20 is in the locked state.

[0050] like Figures 1 to 9 As shown, when it is necessary to remove the quick-release buckle 20, press the pressing part 32 and push the quick-release buckle 20. The pressing part 32 moves towards the inner end of the slide groove 13. At this time, the third magnetic suction member 36 approaches the first magnetic suction member 34. The third magnetic suction member 36 and the first magnetic suction member 34 attract each other and pull the top of the locking pin 31 back into the pin hole 111. The top of the locking pin 31 disengages from the limiting groove 23, the limiting hole or the blind hole. The quick-release buckle 20 can enter the entry cavity 11 from the limiting cavity 12. Pull the quick-release buckle 20 upward perpendicular to the entry cavity 11 and the quick-release buckle 20 separates from the base 10.

[0051] like Figures 1 to 9 As shown, the front end of the quick-release buckle 20 is provided with a hanging rope 40.

[0052] The above are specific embodiments of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications are also considered to be within the protection scope of this utility model.

Claims

1. A quick release device for a belt buckle, comprising: include: A base, wherein a limiting cavity is formed on the upper surface of the base, a pin hole is provided at the inlet end of the limiting cavity, and a sliding groove is provided at the bottom of the base, the sliding groove communicating with the pin hole; A locking component includes a locking pin, a pressing part, a return spring, a first magnetic accommodating element, a second magnetic accommodating element, and a third magnetic accommodating element. The locking pin is movably engaged in a pin hole. The bottom of the locking pin is provided with a first magnetic accommodating element. The pressing part is movably engaged in a sliding groove. The return spring is used to reset the pressing part in the sliding groove. The upper surface of the pressing part is provided with a second magnetic accommodating element and a third magnetic accommodating element adjacent to each other. The third magnetic accommodating element is close to the outer end of the pressing part. The second magnetic accommodating element and the first magnetic accommodating element repel each other, while the third magnetic accommodating element and the first magnetic accommodating element attract each other. Under the action of the return spring, the second magnetic accommodating element moves closer to the first magnetic accommodating element, and the repulsion between the second and first magnetic accommodating elements pushes the top of the locking pin out of the pin hole. When an external force presses the pressing part, the third magnetic accommodating element moves closer to the first magnetic accommodating element, and the attraction between the third and first magnetic accommodating elements causes the top of the locking pin to retract into the pin hole. The quick-release buckle is movably disposed relative to the base. It has an engaged state and a locked state along its movement path. In the engaged state, the locking pin is pressed back into the pin hole by the quick-release buckle. In the locked state, the locking pin is released by the quick-release buckle, and the second magnetic attractor and the first magnetic attractor repel each other, pushing the top of the locking pin out of the pin hole. The quick-release buckle abuts against the inner wall of the limiting cavity through the action of the locking pin and is fixed within the limiting cavity.

2. The buckle quick release device of claim 1, wherein, The quick-release device with buckle also includes an entry cavity. The base includes a base body and a limiting stop. The entry cavity is opened on the base body. The limiting stop extends at least partially toward the inner side of the base body and surrounds the base body to form the limiting cavity. The quick-release buckle includes a quick-release buckle body and a limiting periphery. The limiting periphery protrudes from the outer wall of the quick-release buckle body. In the locked state, the limiting periphery abuts against the inner side of the limiting stop under the action of the locking member.

3. The buckle quick release device of claim 1, wherein, The upper surface of the base is also provided with an entry cavity, which is connected to the limiting cavity. The entry cavity is located on the entry end side of the limiting cavity. In the entry state, the quick hook is at least partially accommodated in the entry cavity.

4. The buckle quick release device of claim 1, wherein, The quick-release buckle has a limiting part at its rear end. Under the action of the return spring, the second magnetic attractor approaches the first magnetic attractor. The second magnetic attractor and the first magnetic attractor repel each other and push the top of the locking pin out of the pin hole. The top of the locking pin abuts against the limiting part. When an external force presses the pressing part, the third magnetic attractor approaches the first magnetic attractor. The third magnetic attractor and the first magnetic attractor attract each other. The top of the locking pin retracts into the pin hole and disengages from the limiting part, and the quick-release buckle can be removed.

5. The buckle quick release device of claim 4, wherein, The limiting part is formed on the rear end face of the quick-release buckle.

6. The buckle quick release device of claim 4, wherein, The limiting part is a limiting groove, limiting hole or blind hole. Under the action of the return spring, the top of the locking pin is inserted into the limiting groove, limiting hole or blind hole.

7. The buckle quick release device of claim 1, wherein, The quick-release buckle has a hanging cord at its front end.

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