Magnetic rotary unlocking buckle

Abstract

A magnetic suction rotary unlocking buckle comprises an upper buckle assembly and a lower buckle assembly matched with the upper buckle assembly, the lower buckle assembly comprises a connecting plate and a protrusion arranged on the connecting plate, a first magnet is arranged in the protrusion, and an annular clamping groove is formed in the outer wall of the protrusion; the upper buckle assembly comprises a lower cover, an upper cover and a hand wheel ring pivoted between the upper cover and the lower cover, a through hole communicated with the containing cavity is formed in the lower cover, a mounting base is arranged above the through hole in the containing cavity and connected with the inner wall of the hand wheel ring, a second magnet and a third magnet are arranged on the mounting base, the second magnet is matched with the first magnet in an attraction mode, and the third magnet is matched with the second magnet in an attraction mode. The third magnet is matched with the first magnet in a repelling mode, a clamping hook is arranged on one side of the through hole in the containing cavity, and a first reset mechanism for driving the hand wheel ring to reset after rotating and a second reset mechanism for driving the clamping hook to be close to the through hole are arranged in the containing cavity. The locking device is easy and fast to operate, and fast buckling and unlocking can be achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of buckles, and in particular to a magnetic rotation unlocking buckle. Background Art

[0002] A strap buckle is a device used to connect and fix straps or other adjustable straps. It is usually used on backpacks, clothing, bags and other items to adjust and fix the length of the straps. The strap buckle can be quickly assembled and removed, which is crucial. There are many types of buckles, including knob buckles, side buckles, and magnetic buckles. Most straps use traditional buckle accessories. Although they have good strength, they are cumbersome to operate and affect the appearance, and the user experience is not good. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a magnetic rotation unlocking buckle, which is simple and quick to operate and can achieve rapid buckling and unlocking.

[0004] In order to solve the above technical problems, the technical solution of the present invention is: a magnetic rotary unlocking buckle, including an upper buckle component and a lower buckle component cooperating with the upper buckle component, the lower buckle component including a connecting plate and a protrusion arranged on the connecting plate, the protrusion is provided with a first magnet, and the outer wall of the protrusion is provided with an annular groove; the upper buckle component includes a lower cover, an upper cover and a hand wheel ring pivotally connected between the upper cover and the lower cover, the upper cover, the lower cover and the hand wheel ring surround a accommodating cavity, the lower cover is provided with a through hole connected to the accommodating cavity, and a mounting seat is provided in the accommodating cavity above the through hole. The mounting seat is connected to the inner wall of the hand wheel ring, and a second magnet and a third magnet are provided on the mounting seat. The second magnet and the first magnet are attracted to each other, and the third magnet and the first magnet are repelled to each other. A hook is provided on one side of the through hole in the accommodating cavity and cooperates with the annular groove on the outer wall of the protrusion. One end of the hook is pivotally connected to the lower cover, and a stop block is provided on the other end of the hook. A push block cooperating with the stop block is provided on the mounting seat, and a first reset mechanism for driving the hand wheel ring to reset after rotation and a second reset mechanism for driving the hook to approach the through hole are provided in the accommodating cavity. Principle of the present invention: Snap-on: In this state, the second magnet is located in the middle position above the through hole, and the hook is close to the through hole. The protrusion of the lower buckle component is inserted from the through hole into the accommodating cavity of the upper buckle component. Since the first magnet and the second magnet attract each other, the insertion of the protrusion can be guided and accelerated, and the hook can be pushed open under the action of magnetic attraction during the insertion of the protrusion. When the protrusion is in place, the hook is reset and snapped into the annular groove under the action of the second reset mechanism, forming a constraint on the protrusion to prevent the lower buckle component from being separated from the upper buckle component, and completing the snap-on action. Unlocking: Turn the hand wheel ring, the hand wheel ring drives the connecting seat to move the second magnet to one side of the through hole, and the third magnet to the middle position of the through hole. At the same time, the hand wheel ring pushes the block through the push block to make the hook leave the annular groove of the protrusion. After the protrusion is freed from the constraint, under the mutual repulsion of the third magnet and the first magnet, the lower buckle component automatically separates from the upper buckle component, completing the unlocking action.

[0005] As an improvement, a guiding slope is provided on the top edge of the protrusion, and the diameter of the protrusion is slightly smaller than the diameter of the through hole.

[0006] As an improvement, a lower arc guide plate is provided on the edge of the lower cover, an upper arc guide plate is provided on the edge of the upper cover, and the inner wall of the hand wheel ring is in contact with the upper arc guide plate and the lower arc guide plate to form a pivot connection.

[0007] As an improvement, the lower cover is provided with a latch hole, and the upper cover is provided with a buckle that cooperates with the latch hole.

[0008] As an improvement, the lower cover is connected to a connecting buckle, and the connecting buckle is arranged on one side of the hand wheel ring.

[0009] As an improvement, the mounting seat is connected to the inner wall of the handwheel ring through a connecting rod, and the lower cover is provided with a first limit plate and a second limit plate. When the connecting rod and the first limit plate are abutted against each other, the second magnet is located in the middle position above the through hole, and when the connecting rod and the second limit plate are abutted against each other, the third magnet is located in the middle position above the through hole.

[0010] As an improvement, the area and magnetic properties of the second magnet are greater than those of the third magnet.

[0011] As an improvement, the hook includes a connecting portion and an arc-shaped portion, a first connecting column is provided on the lower cover, the connecting portion is provided with a first connecting hole, the first connecting hole cooperates with the first connecting column, and the arc-shaped portion cooperates with the arc-shaped slot; the arc-shaped portion is located on one side of the through hole, and an arc-shaped limiting plate is provided on the other side of the through hole.

[0012] As an improvement, the first reset mechanism and the second reset mechanism are both springs.

[0013] As an improvement, the outer wall of the hand wheel ring is provided with anti-slip stripes.

[0014] Compared with the prior art, the present invention has the following beneficial effects: The upper and lower snap-on components are stably fastened together through magnetic attraction, and unlocked with the assistance of magnetic repulsion, which makes the operation simple and quick; mechanical and magnetic double locking achieves greater tensile strength, and the upper and lower snap-on components are not easy to separate; unlocking is achieved by turning the hand wheel rim, and after unlocking, the lower snap-on component automatically pops apart from the upper snap-on component, and the unlocking action is quick and neat. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a front view of the magnetic rotating unlocking buckle.

[0016] Figure 2 This is a diagram of the back side of the magnetic rotating unlocking buckle.

[0017] Figure 3 Exploded view of the magnetic rotating unlock buckle.

[0018] Figure 4 This is a schematic diagram of the interior of the buckle assembly.

[0019] Figure 5 Schematic diagram of another magnetic rotation unlocking buckle with a return spring. DETAILED DESCRIPTION

[0020] The present invention will be further described below in conjunction with the accompanying drawings.

[0021] like Figure 1 , 2As shown, a magnetic rotation unlocking buckle can be used on backpacks, clothing, hugging stools and other items for quick assembly and disassembly of shoulder straps. The magnetic rotation unlocking buckle comprises an upper buckle component 1 and a lower buckle component 2 matched with the upper buckle component 1. Generally speaking, one shoulder strap is connected to the upper buckle component 1, and the other shoulder strap is connected to the lower buckle component 2. The two shoulder straps are assembled or disassembled through the magnetic rotation unlocking buckle.

[0022] like Figure 2 , 3 As shown, the buckle assembly 2 includes a connecting plate 21 and a protrusion 23 provided on the connecting plate 21. The connecting plate 21 is a circular plate, and the protrusion 23 is provided in the middle of the top surface of the connecting plate 21. The shoulder strap can be connected to the connecting plate 21 by sewing. A first magnet 22 is provided in the protrusion 23, and the protrusion 23 and the connecting plate 21 can be integrally injection molded, and the plastic part of the first magnet 22 can be molded by in-mold injection molding. The first magnet 22 is cylindrical, and the first magnet 22 is a strong magnet of neodymium iron boron. The protrusion 23 is cylindrical and wraps the first magnet 22, and the first magnet 22 forms a magnetic field on the top surface of the protrusion 23. The outer wall of the protrusion 23 is provided with an annular groove 231, the top surface of the protrusion 23 is a plane, and the top edge of the protrusion 23 is provided with a guide slope 232.

[0023] like Figures 1 to 5As shown, the buckle assembly 1 includes a lower cover 13, an upper cover 11, and a hand wheel ring 12 pivotally connected between the upper cover 11 and the lower cover 13. The upper cover 11 and the lower cover 13 are circular and have diameters similar to the diameter of the hand wheel ring 12. The upper cover 11, the lower cover 13, and the hand wheel ring 12 form a receiving cavity. The lower cover 13 is provided with a through hole 131 connected to the receiving cavity. The diameter of the protrusion 23 is slightly smaller than the diameter of the through hole 131. After the protrusion 23 is inserted into the through hole 131, the through hole 131 can limit the swing of the protrusion 23. The bottom of the lower cover 13 is provided with a convex ring at the edge of the through hole 131. After the buckle assembly 2 is buckled with the buckle assembly 1, the convex ring abuts against the connecting plate 21, so that a certain gap is formed between the connecting plate 21 and the lower cover 13. The edge of the lower cover 13 is provided with a lower arc guide plate 133, and the edge of the upper cover 11 is provided with an upper arc guide plate. The inner wall of the hand wheel ring 12 is attached to the upper arc guide plate and the lower arc guide plate 133 to form a pivot connection, and the hand wheel ring 12 rotates along the arc guide plate. The edge of the lower cover 13 is provided with a plurality of clamping holes 134, and the upper cover 11 is provided with a buckle 111 that cooperates with the clamping holes 134. The upper cover 11 is connected with the lower cover 13 in a clamping manner, which is convenient for the disassembly and assembly of the magnetic rotation unlocking buckle. After disassembling the upper cover 11, various parts can be arranged in the accommodating cavity. A mounting seat 122 is provided above the through hole 131 in the accommodating cavity. The mounting seat 122 is connected to the inner wall of the hand wheel ring 12 through a connecting rod 121. Rotating the hand wheel ring 12 can drive the mounting seat 122 to move. The mounting seat 122 is provided with a second magnet 15 and a third magnet 16 , both of which are neodymium iron boron strong magnets. The second magnet 15 and the third magnet 16 are arranged closely, both of which are cylindrical, and the area and magnetism of the second magnet 15 are greater than those of the third magnet 16 . The lower cover 13 is provided with a first limit plate 124 and a second limit plate 125, the connecting rod 121 is located between the first limit plate 124 and the second limit plate 125, the hand wheel ring 12 drives the connecting rod 121, when the connecting rod 121 and the first limit plate 124 are in abutment with each other, the second magnet 15 is located in the upper middle position of the through hole 131, and the second magnet 15 interacts with the first magnet 22 at this time; when the connecting rod 121 and the second limit plate 125 are in abutment with each other, the third magnet 16 is located in the upper middle position of the through hole 131, and the third magnet 16 interacts with the first magnet 22 at this time; the second magnet 15 and the first magnet 22 are attracted to each other, and the third magnet 16 and the first magnet 22 are repelled to each other.A hook 17 is provided on one side of the through hole 131 in the accommodating cavity, which cooperates with the annular groove 231 on the outer wall of the protrusion 23. The hook 17 is sickle-shaped and includes a connecting portion and an arc-shaped portion. A first connecting column is provided on the lower cover 13, and the connecting portion is provided with a first connecting hole. The first connecting hole cooperates with the first connecting column so that one end of the hook 17 is pivotally connected to the lower cover 13, and the arc-shaped portion cooperates with the arc-shaped groove; the arc-shaped portion is located on one side of the through hole 131, and an arc-shaped limiting plate 132 is provided on the other side of the through hole 131. When the arc-shaped portion is close to the protrusion 23, the arc-shaped portion and the arc-shaped limiting plate 132 form a clamping state for the protrusion 23. The free end of the hook 17 is provided with a stopper 171, and the mounting seat 122 is provided with a pusher 123 that cooperates with the stopper 171. The hand wheel ring 12 is rotated to drive the mounting seat 122, and the mounting seat 122 pushes the stopper 171 through the pusher 123, and the stopper 171 drives the hook 17 to make the hook 17 leave the through hole 131. The accommodating cavity is provided with a first reset mechanism 18 that drives the hand wheel ring 12 to reset after rotation and a second reset mechanism 19 that drives the hook 17 to approach the through hole 131; the first reset mechanism 18 and the second reset mechanism 19 are both springs, one end of the first spring acts on the connecting piece of the inner wall of the hand wheel ring 12, and the other end of the first spring acts on the connecting piece of the lower cover 13; one end of the second spring acts on the hook 17, and the other end of the second spring acts on the connecting piece of the lower cover 13. The outer wall of the hand wheel ring 12 is provided with anti-slip stripes. The lower cover 13 is connected to the connecting buckle 14 , which is integrally formed with the lower cover 13 . The connecting buckle 14 is arranged on one side of the hand wheel ring 12 . The connecting buckle 14 is a Japanese buckle that can be connected to a shoulder strap. The connecting buckle 14 is arc-shaped toward the side of the hand wheel ring 12 .

[0024] Principle of the present invention: Buckling: In this state, the second magnet 15 is located in the middle position above the through hole 131, and the hook 17 is close to the through hole 131. The protrusion 23 of the lower buckle component 2 is inserted into the accommodating cavity of the upper buckle component 1 from the through hole 131. Since the first magnet 22 and the second magnet 15 attract each other, the insertion of the protrusion 23 can be guided and accelerated, and the protrusion 23 can push the hook 17 away under the action of the magnetic attraction during the insertion process. When the protrusion 23 is in place, the hook 17 is reset under the action of the second reset mechanism and snapped into the annular groove 231, forming a constraint on the protrusion 23, preventing the lower buckle component 2 from detaching from the upper buckle component 1, and completing the buckling action. Unlocking: Turn the handwheel ring 12, the handwheel ring 12 drives the connecting seat to move the second magnet 15 to one side of the through hole 131, and the third magnet 16 moves to the middle position of the through hole 131. At the same time, the handwheel ring 12 pushes the stop block 171 through the push block 123 to make the hook 17 leave the annular groove 231 of the protrusion 23. After the protrusion 23 is free from the constraint, under the mutual repulsive force between the third magnet 16 and the first magnet 22, the lower buckle component 2 automatically disengages from the upper buckle component 1, completing the unlocking action.

Claims

1. A magnetic rotation unlocking buckle, comprising an upper buckle component and a lower buckle component cooperating with the upper buckle component, characterized in that: The lower buckle assembly comprises a connecting plate and a protrusion arranged on the connecting plate, the protrusion is provided with a first magnet, and the outer wall of the protrusion is provided with an annular groove; the upper buckle assembly comprises a lower cover, an upper cover and a hand wheel ring pivotally connected between the upper cover and the lower cover, the upper cover, the lower cover and the hand wheel ring surround a accommodating cavity, the lower cover is provided with a through hole connected to the accommodating cavity, a mounting seat is provided in the accommodating cavity above the through hole, the mounting seat is connected to the inner wall of the hand wheel ring, a second magnet and a third magnet are provided on the mounting seat, the second magnet and the first magnet are attracted and matched, and the third magnet and the first magnet are repelled and matched, a hook is provided on one side of the through hole in the accommodating cavity and matched with the annular groove on the outer wall of the protrusion, one end of the hook is pivotally connected to the lower cover, and the other end of the hook is provided with a stopper, and a push block matched with the stopper is provided on the mounting seat, and a first reset mechanism for driving the hand wheel ring to reset after rotation and a second reset mechanism for driving the hook to approach the through hole are provided in the accommodating cavity.

2. The magnetic rotation unlocking buckle according to claim 1, characterized in that: A guiding slope is arranged on the top edge of the protrusion, and the diameter of the protrusion is slightly smaller than the diameter of the through hole.

3. The magnetic rotation unlocking buckle according to claim 1, characterized in that: A lower arc guide plate is provided at the edge of the lower cover, an upper arc guide plate is provided at the edge of the upper cover, and the inner wall of the hand wheel ring is in contact with the upper arc guide plate and the lower arc guide plate to form a pivot connection.

4. The magnetic rotation unlocking buckle according to claim 1, characterized in that: The lower cover is provided with a clamping hole, and the upper cover is provided with a clamping buckle matched with the clamping hole.

5. The magnetic rotation unlocking buckle according to claim 1, characterized in that: The lower cover is connected to a connecting buckle, and the connecting buckle is arranged on one side of the hand wheel ring.

6. The magnetic rotation unlocking buckle according to claim 1, characterized in that: The mounting seat is connected to the inner wall of the handwheel ring through a connecting rod, and the lower cover is provided with a first limit plate and a second limit plate. When the connecting rod and the first limit plate are abutted against each other, the second magnet is located in the middle position above the through hole, and when the connecting rod and the second limit plate are abutted against each other, the third magnet is located in the middle position above the through hole.

7. The magnetic rotation unlocking buckle according to claim 1, characterized in that: The area and magnetism of the second magnet are greater than those of the third magnet.

8. The magnetic rotation unlocking buckle according to claim 1, characterized in that: The hook includes a connecting portion and an arc-shaped portion. A first connecting column is provided on the lower cover. The connecting portion is provided with a first connecting hole. The first connecting hole cooperates with the first connecting column, and the arc-shaped portion cooperates with the arc-shaped slot. The arc-shaped portion is located on one side of the through hole, and an arc-shaped limiting plate is provided on the other side of the through hole.

9. The magnetic rotation unlocking buckle according to claim 1, characterized in that: The first reset mechanism and the second reset mechanism are both springs.

10. The magnetic rotation unlocking buckle according to claim 1, characterized in that: The outer wall of the hand wheel ring is provided with anti-skid stripes.

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