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 simple and quick to operate, and can realize quick buckling and unlocking.

Description

TECHNICAL FIELD

[0001] The utility model relates to a buckle technical field especially a kind of magnetic attraction rotary unlocking buckle. BACKGROUND

[0002] The utility model relates to a buckle technical field especially a kind of magnetic attraction rotary unlocking buckle. SUMMARY

[0003] The utility model relates to a buckle technical field especially a kind of magnetic attraction rotary unlocking buckle.

[0004] To solve the above-mentioned technical problems, the technical solution of this utility model is: a magnetic rotary unlocking buckle, including an upper buckle assembly and a lower buckle assembly that cooperates with the upper buckle assembly. The lower buckle assembly includes a connecting plate and a protrusion provided on the connecting plate. A first magnet is provided inside the protrusion, and an annular groove is provided on the outer wall of the protrusion. The upper buckle assembly includes a lower cover, an upper cover, and a handwheel ring pivotally connected between the upper cover and the lower cover. The upper cover, the lower cover, and the handwheel ring form a receiving cavity. The lower cover has a through hole communicating with the receiving cavity, and a mounting seat is provided above the through hole in the receiving cavity. The mounting base is connected to the inner wall of the handwheel ring. The mounting base is provided with a second magnet and a third magnet. The second magnet attracts and engages with the first magnet, and the third magnet repels and engages with the first magnet. The accommodating cavity is provided with a hook that engages with the annular groove on the protruding outer wall on one side of the through hole. One end of the hook is pivotally connected to the lower cover, and the other end of the hook is provided with a stop block. The mounting base is provided with a push block that engages with the stop block. The accommodating cavity is provided with a first reset mechanism that drives the handwheel ring to rotate and reset, and a second reset mechanism that drives the hook to approach the through hole. The principle of this invention: Fastening: In this state, the second magnet is located at the upper center of the through hole, and the hook is close to the through hole. The protrusion of the lower fastening component is inserted into the receiving cavity of the upper fastening component through the through hole. Due to the mutual attraction between the first and second magnets, the insertion of the protrusion is guided and accelerated. Furthermore, during insertion, the protrusion can push the hook open under the action of magnetic attraction. When the protrusion is in place, the hook is reset under the action of the second reset mechanism and engages in the annular groove, constraining the protrusion and preventing the lower and upper fastening components from disengaging, thus completing the fastening action. Unlocking: Rotating the handwheel causes the connecting seat to move the second magnet towards one side of the through hole and the third magnet towards the center of the through hole. Simultaneously, the handwheel pushes the stop block through the push block, causing the hook to leave the annular groove of the protrusion. After the protrusion is freed from constraint, under the mutual repulsive force between the third and first magnets, the lower fastening component automatically disengages from the upper fastening component, completing the unlocking action.

[0005] As an improvement, the top edge of the protrusion is provided with a guide bevel, and the diameter of the protrusion is slightly smaller than the diameter of the through hole.

[0006] As an improvement, the lower cover has a lower arc-shaped guide plate on its edge, the upper cover has an upper arc-shaped guide plate on its edge, and the inner wall of the handwheel ring is pivotally connected to the upper arc-shaped guide plate and the lower arc-shaped guide plate.

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

[0008] As an improvement, the lower cover is connected to a connecting buckle, which is located on one side of the handwheel ring.

[0009] As improvement, the mounting base is connected with the inner wall of the hand wheel ring through a connecting rod, the lower cover is provided with a first limiting plate and a second limiting plate, when the connecting rod abuts against the first limiting plate, the second magnet is located at the upper middle position of the through hole, and when the connecting rod abuts against the second limiting plate, the third magnet is located at the upper middle position of the through hole.

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

[0011] As improvement, the clamping hook comprises a connecting portion and an arc-shaped portion, the lower cover is provided with a first connecting column, the connecting portion is provided with a first connecting hole matched with the first connecting column, and the arc-shaped portion is matched with the arc-shaped clamping groove; the arc-shaped portion is located at one side of the through hole, and the other side of the through hole is provided with an arc-shaped limiting plate.

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

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

[0014] The utility model compared with prior art brings beneficial effect is:

[0015] The upper buckle assembly and the lower buckle assembly are stably buckled through magnetic attraction force, and are unlocked through magnetic repulsion force, so that the operation is simple and fast; mechanical and magnetic double locking has greater tensile strength, and the upper buckle assembly and the lower buckle assembly are not easy to separate; the unlocking is realized by rotating the hand wheel ring, after unlocking, the lower buckle assembly is automatically and automatically popped open with the upper buckle assembly, and the unlocking action is crisp and neat. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a front view of the magnetic attraction rotary unlocking buckle.

[0017] Figure 2 It is a back view of the magnetic attraction rotary unlocking buckle.

[0018] Figure 3 It is an exploded view of the magnetic attraction rotary unlocking buckle.

[0019] Figure 4 It is an internal schematic view of the upper buckle assembly.

[0020] Figure 5 It is a schematic view of another reset spring magnetic attraction rotary unlocking buckle. DETAILED DESCRIPTION

[0021] The utility model will be further described below in combination with the drawings of the specification.

[0022] For example, Figure 1 , 2As shown in the drawings, a magnetic rotation unlocking buckle can be used on a backpack, clothing, a hug bench and other objects, and is used for quick combination and disassembly of the straps. The magnetic rotation unlocking buckle comprises an upper buckle assembly 1 and a lower buckle assembly 2 matched with the upper buckle assembly 1. Generally, one strap is connected with the upper buckle assembly 1, and the other strap is connected with the lower buckle assembly 2. The two straps are combined or disassembled through the magnetic rotation unlocking buckle.

[0023] As shown in the drawings, Figure 2 , 3 The lower buckle assembly 2 comprises a connecting plate 21 and a protrusion 23 arranged on the connecting plate 21. The connecting plate 21 is a circular plate, and the protrusion 23 is arranged at the middle position of the top surface of the connecting plate 21. The straps can be connected with the connecting plate 21 by sewing. The first magnet 22 is arranged in the protrusion 23. The protrusion 23 and the connecting plate 21 can be integrally injection molded, and the first magnet 22 and the plastic part can be molded by in-mold injection. The first magnet 22 is in a cylindrical shape, and the first magnet 22 is a neodymium iron boron strong magnet. The protrusion 23 is in a cylindrical shape and wraps the first magnet 22. 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 clamping groove 231. The top surface of the protrusion 23 is a flat surface. The top edge of the protrusion 23 is provided with a guide inclined surface 232.

[0024] As shown in the drawings, Figures 1 to 5As shown, the upper buckle assembly 1 comprises 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 a diameter close to that of the hand wheel ring 12, and 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 communicating with the receiving cavity, and the diameter of the protrusion 23 is slightly smaller than that 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 lower buckle assembly 2 is buckled with the upper buckle assembly 1, the convex ring abuts against the connecting plate 21, so that a 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-shaped guide plate 133, and the edge of the upper cover 11 is provided with an upper arc-shaped guide plate. The inner wall of the hand wheel ring 12 abuts against the upper arc-shaped guide plate and the lower arc-shaped guide plate 133 to form a pivot connection, and the hand wheel ring 12 rotates along the arc-shaped 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 buckles 111 matched with the clamping holes 134. The upper cover 11 is connected with the lower cover 13 in a clamping manner, which facilitates the disassembly and assembly of the magnetic attraction rotary unlocking buckle. After the upper cover 11 is disassembled, various parts can be arranged in the receiving cavity. An installation seat 122 is arranged above the through hole 131 in the receiving cavity, and the installation seat 122 is connected with the inner wall of the hand wheel ring 12 through a connecting rod 121. Rotating the hand wheel ring 12 can drive the installation seat 122 to move. The installation seat 122 is provided with a second magnet 15 and a third magnet 16. The second magnet 15 and the third magnet 16 are both neodymium-iron-boron strong magnets, and are arranged closely. The second magnet 15 and the third magnet 16 are both 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 limiting plate 124 and a second limiting plate 125, and the connecting rod 121 is located between the first limiting plate 124 and the second limiting plate 125. The hand wheel ring 12 drives the connecting rod 121. When the connecting rod 121 abuts against the first limiting plate 124, the second magnet 15 is located above the 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 abuts against the second limiting plate 125, the third magnet 16 is located above the 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 from each other.The accommodation cavity is provided with a clamping hook 17 matched with the annular clamping slot 231 of the outer wall of the protrusion 23 on one side of the through hole 131. The clamping hook 17 is in the shape of a sickle. The clamping hook 17 comprises a connecting part and an arc-shaped part. The lower cover 13 is provided with a first connecting column. The connecting part is provided with a first connecting hole matched with the first connecting column, so that one end of the clamping hook 17 is pivotally connected to the lower cover 13. The arc-shaped part is matched with the arc-shaped clamping slot. The arc-shaped part is located on one side of the through hole 131. The other side of the through hole 131 is provided with an arc-shaped limiting plate 132. When the arc-shaped part approaches the protrusion 23, the arc-shaped part and the arc-shaped limiting plate 132 form a clamping state for the protrusion 23. The free end of the clamping hook 17 is provided with a stopper 171. The mounting seat 122 is provided with a push block 123 matched with the stopper 171. The rotating handle ring 12 drives the mounting seat 122 to push the stopper 171 through the push block 123. The stopper 171 drives the clamping hook 17 to make the clamping hook 17 move away from the through hole 131. The accommodation cavity is provided with a first reset mechanism 18 for resetting the rotation of the handle ring 12 and a second reset mechanism 19 for driving the clamping 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 part of the inner wall of the handle ring 12. The other end of the first spring acts on the connecting part of the lower cover 13. One end of the second spring acts on the clamping hook 17. The other end of the second spring acts on the connecting part of the lower cover 13. The outer wall of the handle ring 12 is provided with anti-skid stripes. The lower cover 13 is connected with the connecting buckle 14. The connecting buckle 14 is integrally formed with the lower cover 13. The connecting buckle 14 is located on one side of the handle ring 12. The connecting buckle 14 is a sun-shaped buckle which can be connected with a shoulder strap. The side of the connecting buckle 14 facing the handle ring 12 is arc-shaped.

[0025] The utility model discloses principles: buckle: this state, second magnet 15 is located in the upper middle position of through -hole 131, clamping hook 17 is close to through -hole 131, and the protrusion 23 of lower buckle subassembly 2 is inserted into the accommodation cavity of upper buckle subassembly 1 from through -hole 131, because first magnet 22 and second magnet 15 attract each other, can guide and accelerate the insertion of protrusion 23, and protrusion 23 can push away clamping hook 17 under the action of magnetic attraction during insertion, when protrusion 23 is in position, clamping hook 17 resets and is clamped in annular clamping slot 231 under the action of second reset mechanism, and protrusion 23 forms the constraint, prevents lower buckle subassembly 2 and upper buckle subassembly 1 from separating, and completes buckling action. Unlock: rotate handle ring 12, and handle ring 12 drives connecting seat, and second magnet 15 moves to one side of through -hole 131, and third magnet 16 moves to the middle position of through -hole 131, simultaneously, and handle ring 12 pushes stopper 171 through push block 123 and makes clamping hook 17 move away from the annular clamping slot 231 of protrusion 23, and after protrusion 23 separates the constraint, under the action of the repulsion of third magnet 16 and first magnet 22, lower buckle subassembly 2 is automatically separated from upper buckle subassembly 1, and completes unlocking action.

Claims

1. A magnetic rotating unlocking buckle, comprising an upper buckle assembly and a lower buckle assembly matched with the upper buckle assembly, characterized in that: The lower buckle assembly comprises a connecting plate and a protrusion provided on the connecting plate, the protrusion is internally provided with a first magnet, and an outer wall of the protrusion is provided with an annular clamping 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 form a containing cavity, the lower cover is provided with a through hole in communication with the containing cavity, the containing cavity is provided with a mounting seat above the through hole, the mounting seat is connected with an inner wall of the hand wheel ring, the mounting seat is provided with a second magnet and a third magnet, the second magnet is attracted to the first magnet, the third magnet is repelled from the first magnet, the containing cavity is provided with a clamping hook on one side of the through hole, the clamping hook is pivotally connected to the lower cover at one end, the clamping hook is provided with a stop block at the other end, the mounting seat is provided with a push block matched with the stop block, and the containing cavity is provided with a first reset mechanism for resetting the hand wheel ring after rotation and a second reset mechanism for driving the clamping hook to approach the through hole.

2. The magnetic rotating unlocking buckle according to claim 1, characterized in that: A top edge of the protrusion is provided with a guide inclined surface, and a diameter of the protrusion is slightly smaller than a diameter of the through hole.

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

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

6. The magnetic rotating unlocking buckle according to claim 1, characterized in that: The mounting seat is connected with the inner wall of the hand wheel ring through a connecting rod, the lower cover is provided with a first limiting plate and a second limiting plate, when the connecting rod is abutted with the first limiting plate, the second magnet is located at an upper middle position of the through hole, and when the connecting rod is abutted with the second limiting plate, the third magnet is located at the upper middle position of the through hole.

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

8. The magnetic rotating unlocking buckle according to claim 1, characterized in that: The clamping hook comprises a connecting portion and an arc-shaped portion, the lower cover is provided with a first connecting column, the connecting portion is provided with a first connecting hole matched with the first connecting column, and the arc-shaped portion is matched with the arc-shaped clamping groove; the arc-shaped portion is located on one side of the through hole, and the other side of the through hole is provided with an arc-shaped limiting plate.

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

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

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