Turntable adjustment buckle

Abstract

A turntable adjustment buckle is provided and includes a first buckle element and a second buckle element. The first buckle element includes a first matching portion, and the second buckle element includes a column and a second matching portion. A rope is wound around the column, and the second matching portion is provided on the column and assembled with the first matching portion. The second buckle element is able to rotate relative to the first buckle element, so that the rope is able to be wound around the column along a fastening direction or be released from the column in a releasing direction, and an engagement strength between the first matching portion and the second matching portion is different according to the fastening direction and the releasing direction.

What is claimed is: 
     
         1 . A turntable adjustment buckle, comprising:
 a first buckle element including an accommodating space and a first matching portion; and   a second buckle element including a column and a second matching portion, wherein the column is located in the accommodating space and is for a rope to be wound around, the second matching portion is disposed on the column and located in the accommodating space, and the second matching portion is assembled with the first matching portion,   wherein the second buckle element is able to rotate relative to the first buckle element, so that the rope is able to be wound around the column in a fastening direction or loosened from the column in a releasing direction, and an engagement strength between the first matching portion and the second matching portion is different according to the fastening direction and the releasing direction.   
     
     
         2 . The turntable adjustment buckle of  claim 1 , wherein the engagement strength in the fastening direction is smaller than the engagement strength in the releasing direction. 
     
     
         3 . The turntable adjustment buckle of  claim 2 , wherein the first matching portion has at least one tooth portion, the second matching portion has a plurality of positioning grooves, and the tooth portions are accommodated in the plurality of positioning grooves. 
     
     
         4 . The turntable adjustment buckle of  claim 3 , wherein the second matching portion further has a turntable body, and the plurality of positioning grooves are recessed from the turntable body and are arranged in a ring or radial shape at intervals from each other. 
     
     
         5 . The turntable adjustment buckle of  claim 3 , wherein the first buckle element further includes a base and an annular wall, the annular wall extends outward from the base, the first matching portion is disposed in the annular wall, the accommodating space is surrounded and defined by the annular wall and the first matching portion, the second buckle element further includes an operating portion, the operating portion is disposed on the annular wall, and the column extends outward from the operating portion. 
     
     
         6 . The turntable adjustment buckle of  claim 5 , wherein the first buckle element further includes two first through holes, the second buckle element further includes a second through hole, the first through holes are formed through the annular wall and correspond to each other, and the second through hole is formed through the column, wherein the first through holes and the second through hole are used for the rope to pass through. 
     
     
         7 . The turntable adjustment buckle of  claim 5 , wherein the first matching portion further has a connecting portion and at least one elastic portion, the connecting portion is H-shaped and is disposed inside the annular wall, the elastic portion is connected to the connecting portion, and the tooth portions are disposed on the elastic portion. 
     
     
         8 . The turntable adjustment buckle of  claim 7 , wherein the base is made of nylon, the annular wall and the first matching portion are made of polyoxymethylene, and the second buckle element is made of nylon. 
     
     
         9 . The turntable adjustment buckle of  claim 5 , wherein the first matching portion further has a connecting portion and at least one elastic portion, the connecting portion is disposed inside the annular wall, the elastic portion is connected to the connecting portion and is in a cross shape together with the connecting portion, and the tooth portions are disposed on the elastic portion. 
     
     
         10 . The turntable adjustment buckle of  claim 9 , wherein the base and the annular wall are made of nylon, the first matching portion is made of polyoxymethylene, and the second buckle element is made of nylon. 
     
     
         11 . The turntable adjustment buckle of  claim 3 , wherein each of the tooth portions has an inclined surface and a stopping surface adjacent to each other, and an area of the inclined surface is larger than an area of the stopping surface. 
     
     
         12 . The turntable adjustment buckle of  claim 11 , wherein each of the plurality of positioning grooves has a pushing surface and a limiting surface opposite to each other, the pushing surface corresponds to the inclined surface, and the limiting surface corresponds to the stopping surface and engages with the stopping surface. 
     
     
         13 . The turntable adjustment buckle of  claim 12 , wherein the pushing surface slides on the inclined surface and is offset with the inclined surface when the second buckle element rotates relative to the first buckle element so that the rope is wound around the column along the fastening direction, and the limiting surface and the stopping surface are offset with each other when the second buckle element rotates relative to the first buckle element to cause the rope to be loosened from the column along the releasing direction. 
     
     
         14 . The turntable adjustment buckle of  claim 2 , wherein the first matching portion has a plurality of positioning grooves, the second matching portion has at least one claw, and the claw is accommodated in one of the plurality of positioning grooves. 
     
     
         15 . The turntable adjustment buckle of  claim 14 , wherein the claw is composed of a base end extending outward from the column, a bending body bent in a circumferential direction, and a buckle body disposed on the bending body and facing the plurality of positioning grooves. 
     
     
         16 . The turntable adjustment buckle of  claim 15 , wherein the first buckle element further includes a base, an annular wall and a first limiting portion, the annular wall extends outward from the base, the plurality of positioning grooves are arranged on the annular wall, the accommodating space is surrounded and defined by the base and the annular wall, the first limiting portion extends outward from the annular wall, the second buckle element further includes an operating portion and a second limiting portion, the operating portion is disposed on a top edge of the annular wall and connected to the column, and the second limiting portion is disposed on the operating portion and snapped into the first limiting portion. 
     
     
         17 . The turntable adjustment buckle of  claim 16 , wherein the first buckle element further includes two first through holes, the second buckle element further includes a second through hole, the first through holes are formed through the annular wall and correspond to each other, the second through hole is formed through the column, wherein the first through holes and the second through hole are used for the rope to pass through. 
     
     
         18 . The turntable adjustment buckle of  claim 16 , wherein the column has a shaft portion, the base has a shaft hole, and the shaft portion is accommodated in the shaft hole, so that the second buckle element is able to rotate relative to the first buckle element with the shaft portion as an axis. 
     
     
         19 . The turntable adjustment buckle of  claim 16 , wherein the operating portion is made of nylon, the second matching portion and the column are made of polyoxymethylene, and the first buckle element is made of nylon. 
     
     
         20 . The turntable adjustment buckle of  claim 15 , wherein the buckle body has an inclined surface and a stopping surface adjacent to each other, and an area of the inclined surface is larger than an area of the stopping surface. 
     
     
         21 . The turntable adjustment buckle of  claim 20 , wherein each of the plurality of positioning grooves has a pushing surface and a limiting surface adjacent to each other, an area of the pushing surface is larger than an area of the limiting surface, the pushing surface is correspondingly engaged with the inclined surface, and the limiting surface is correspondingly engaged with the stopping surface. 
     
     
         22 . The turntable adjustment buckle of  claim 21 , wherein when the second buckle element rotates relative to the first buckle element so that the rope is wound around the column along the fastening direction, the pushing surface slides on the inclined surface and is offset with the inclined surface, the bending body is elastically compressed toward the column, and the bending body does not rebound until the buckle body slides into the next adjacent positioning groove via the inclined surface and the pushing surface. 
     
     
         23 . The turntable adjustment buckle of  claim 21 , wherein when the second buckle element rotates relative to the first buckle element to release the rope from the column along the releasing direction, the limiting surface slides on the stopping surface and is offset with the stopping surface, the bending body is elastically compressed toward the column, and the bending body does not rebound until the buckle body slides into the next adjacent positioning groove via the limiting surface and the stopping surface.