Magnetic attraction buckle

Abstract

A magnetic attraction buckle is provided, which includes a first body and a second body that are cooperated and engaged with each other. The first body is provided with a clamping part that is protruded, the clamping part is provided with a first magnetic piece. The second body is provided with a clamping groove that accommodates the clamping part. The second body is internally provided with a movable locking piece, and the locking piece is provided with a second magnetic piece that attracts the first magnetic piece when locked and a third magnetic piece that repels the first magnetic piece when unlocked. This application effectively solves a technical problem of inconvenient one-handed operation of existing webbing buckles.

What is claimed is: 
     
         1 . A magnetic attraction buckle, comprising a first body and a second body that are cooperated and engaged with each other,
 wherein the first body is provided with a clamping part that is protruded, the clamping part is provided with a first magnetic piece,   the second body is provided with a clamping groove that accommodates the clamping part, the second body is internally provided with a movable locking piece, and the locking piece is provided with a second magnetic piece that attracts the first magnetic piece when locked and a third magnetic piece that repels the first magnetic piece when unlocked.   
     
     
         2 . The magnetic attraction buckle according to  claim 1 , wherein the clamping part is provided with a first clamping end, the locking piece is provided with a second clamping end,
 the first clamping end and the second clamping end are cooperated and engaged with each other,   the locking piece moves inside the second body to cause the second clamping end to be close to or far away from the first clamping end for locking or unlocking.   
     
     
         3 . The magnetic attraction buckle according to  claim 2 , wherein the locking piece comprises a locking piece body,
 the locking piece body is provided at a tail end of the clamping groove, the first clamping end is provided on a side of the clamping part, and the second clamping end is provided on a side of the locking piece body and corresponds to a position of the first clamping end.   
     
     
         4 . The magnetic attraction buckle according to  claim 3 , wherein the first magnetic piece is arranged at a tail end of the clamping part that is close to the locking piece body,
 the second magnetic piece and the third magnetic piece are both provided on the locking piece body,   when the locking piece is locked with the clamping part, the first magnetic piece and the second magnetic piece correspond in position and attract each other, and the third magnetic piece is provided on one side of the second magnetic piece away from the second clamping end.   
     
     
         5 . The magnetic attraction buckle according to  claim 4 , wherein fourth magnetic pieces corresponding to a position of the third magnetic piece and mutually attracting the third magnetic piece when the first magnetic piece is locked are provided on one side of the first magnetic piece away from the first clamping end, and/or
 the fourth magnetic pieces corresponding to a position of the second magnetic piece and mutually repelling the second magnetic piece when the first magnetic piece is unlocked are provided on one side of the first magnetic piece close to the first clamping end.   
     
     
         6 . The magnetic attraction buckle according to  claim 4 , wherein a movement distance of the second clamping end towards a direction away from the first clamping end is at least a distance between a side of the second magnetic piece away from the second clamping end and a side of the third magnetic piece away from the second clamping end. 
     
     
         7 . The magnetic attraction buckle according to  claim 3 , wherein the second body is provided with a switch component that is at least partially exposed outside, and the switch component is connected to the locking piece for transmission and drives the locking pieces to move inside the second body. 
     
     
         8 . The magnetic attraction buckle according to  claim 7 , wherein the switch component is hinged on the second body and contacts one end of the locking piece body away from the second clamping end, and pressing the switch component causes the second clamping end to move in a direction away from the first clamping end. 
     
     
         9 . The magnetic attraction buckle according to  claim 8 , wherein the switch component is cam shaped, and the switch component is provided with a first protruding portion and a second protruding portion that are protruded laterally;
 a hinge axis of the switch component is provided at one end away from the first protruding portion and the second protruding portion, and the first protruding portion is exposed at an outer side of the second body;   the second protruding portion is provided on an inner side of the second body and is in contact with one end of the locking piece body that is away from the second clamping end;   when the first protrusion is pressed, the second protrusion squeezes the locking piece body, and the second clamping end is caused to move away from the first clamping end.   
     
     
         10 . The magnetic attraction buckle according to  claim 9 , wherein the locking piece body is provided with an elastic element on one side away from the first clamping end, and the elastic element makes the second clamping end have a tendency to reset after being away from the first clamping end;
 the second protruding portion comprises a force applying surface and a first self-locking surface, and the locking piece body is respectively provided with a force receiving surface and a second self-locking surface adapted to the force applying surface and the first self-locking surface;   the force applying surface and the force receiving surface are both inclined surfaces;   when the first protruding portion is pressed, the force applying surface presses against the force receiving surface, thereby unlocking the locking piece body;   the first self-locking surface is a curved surface protruding outward, and the second self-locking surface is a curved surface recessed inward;   when the locking piece body is reset, the first self-locking surface is pressed against the second self-locking surface to limit a limit position of the locking piece body that is reset to complete a self-locking of the locking piece body upon resetting.   
     
     
         11 . The magnetic attraction buckle according to  claim 8 , wherein there are two switch components and the two switch components are provided on two sides of the second body,
 each of the switch components is provided with a bulge that protrudes laterally and is exposed outside the second body;   there is a deformation part between the two switch components, and the deformation part is in contact with one end of the locking piece body that is far away from the second clamping end;   two ends of the deformation part are respectively connected to the two switch components;   when the bulge of the switch components is pressed, the switch components are rotated to cause the deformation part to be deformed towards the locking piece body, the locking piece body is pushed, and the second clamping end is moved in a direction away from the first clamping end.   
     
     
         12 . The magnetic attraction buckle according to  claim 11 , wherein a U-shaped guide structure protruding towards the locking piece body and in contact with the locking piece body is provided at a center of the deformation part. 
     
     
         13 . The magnetic attraction buckle according to  claim 2 , wherein a shape of the second clamping end matches that of the first clamping end, and the first clamping end and the second clamping end are respectively provided with inclined surfaces that are cooperated with each other to facilitate mutual locking. 
     
     
         14 . The magnetic attraction buckle according to  claim 2 , wherein the locking piece is provided with an elastic element on one side away from the first clamping end, and the elastic element makes the second clamping end have a tendency to reset after being away from the first clamping end.