A tripod button mechanism and a tripod

Abstract

A tripod button mechanism includes an angle position locking structure fixedly arranged on a body of a tripod. A button structure includes a button disposed rotatably on a leg shaft sleeve of the tripod through a first shaft. The button joint joints with the angle limitation structure to lock an opening angle of a supporting leg of the tripod. The tripod button mechanism includes a supporting structure abutting against the button when the joint joints with the limitation structure, and an extension line between the supporting position of the support structure and the joint intersects with an extension line of the supporting leg extending towards one end where the angle position locking structure is located.

What is claimed is: 
     
         1 . A tripod button mechanism comprising:
 an angle position locking structure fixedly arranged on a body of a tripod;   a button structure, comprising a button disposed rotatably on a leg shaft sleeve of the tripod through a first shaft, wherein, the button has a joint adapted for jointing with a limitation structure of the angle position locking structure, and the joint joints with the limitation structure to lock an opening angle of a supporting leg of the tripod;   a supporting structure; wherein the supporting structure abuts against the button when the joint joints with the limitation structure, and   an extension line of a connection line between the supporting position of the support structure and the joint intersects with an extension line of the supporting leg extended towards one end where the angle position locking structure is located, which causes the supporting structure to apply an acting force to the button to allow the button to have a tendency of rotating towards the angle position locking structure.   
     
     
         2 . The tripod button mechanism according to  claim 1 , wherein the supporting structure comprises the first shaft, and when the joint joints with the limitation structure, an extension line of a connection line between an axial line of the first shaft and the joint intersects with an extension line of the supporting leg extended towards one end where the angle position locking structure is located. 
     
     
         3 . The tripod button mechanism according to  claim 1 , wherein the joint is formed by the button being bended downward and towards one end of the angle position locking structure, with a bending position being in the form of a circular transition structure. 
     
     
         4 . The tripod button mechanism according to  claim 1 , wherein the button further comprises a button seat fixedly arranged on the leg shaft sleeve, and the button is rotatably disposed on the button seat through the first shaft. 
     
     
         5 . The tripod button mechanism according to  claim 4 , wherein the button is formed with a clearance space for preventing the button from abutting against the button seat during rotation. 
     
     
         6 . The tripod button mechanism according to  claim 5 , wherein the clearance space is a circular notch formed on one side of the button away from the angle position locking structure. 
     
     
         7 . The tripod button mechanism according to  claim 1 , wherein the joint is in plane contact with the limitation structure. 
     
     
         8 . The tripod button mechanism according to  claim 1 , further comprising a biasing structure for reposition, said biasing structure acting as a biasing force on the button to rotate the button in a direction of j ointing with the limitation structure. 
     
     
         9 . The tripod button mechanism according to  claim 8 , wherein when the joint joints with the limitation structure, an intersection angle formed by a connection line between a supporting position of the supporting structure and the joint and a straight line along which the biasing structure applies the biasing force is an acute angle. 
     
     
         10 . The tripod button mechanism according to  claim 1 , further comprising:
 a button automatic reposition structure for automatically repositioning the button from the supporting structure, wherein, the button automatic reposition structure comprises a trigger portion, formed on one side of the button that faces the angle position locking structure, and a blocking portion, disposed on the angle position locking structure;   during the process of opening the supporting leg, a torque reacted by the blocking portion on the trigger portion is greater than a torque that the biasing force acts on the button, and both of the torques have opposite directions.   
     
     
         11 . The tripod button mechanism according to  claim 10 , wherein: the trigger portion is elongated. 
     
     
         12 . The tripod button mechanism according to  claim 10 , wherein the blocking portion is a first limitation structure on the angle position locking structure in the opening direction of the supporting leg. 
     
     
         13 . The tripod button mechanism according to  claim 1 , wherein the angle position locking structure is a profiled gear, which is provided with teeth extending in a radial direction of the profiled gear. 
     
     
         14 . The tripod button mechanism according to  claim 13 , wherein: the teeth comprise a shape of an arc. 
     
     
         15 . The tripod button mechanism according to  claim 13 , wherein the teeth have a circular transition structure at a cusp of the teeth. 
     
     
         16 . The tripod button mechanism according to any one of  claim 13 , wherein a top portion of the profiled gear is in the form of a circular arc surface, so that the trigger portion abuts against the blocking portion, and the joint of the button is caused by the button automatic reposition structure to snap onto the circular arc surface. 
     
     
         17 . A tripod comprising:
 a tripod button mechanism, said tripod button mechanism comprising:   an angle position locking structure fixedly arranged on a body of a tripod;   a button structure, comprising a button disposed rotatably on a leg shaft sleeve of the tripod through a first shaft, wherein, the button has a joint adapted for jointing with a limitation structure of the angle position locking structure, and the joint joints with the limitation structure to lock an opening angle of a supporting leg of the tripod;   a supporting structure; wherein the supporting structure abuts against the button when the joint joints with the limitation structure, and   an extension line of a connection line between the supporting position of the support structure and the joint intersects with an extension line of the supporting leg extended towards one end where the angle position locking structure is located, which causes the supporting structure to apply an acting force to the button to allow the button to have a tendency of rotating towards the angle position locking structure.   
     
     
         18 . The tripod according to  claim 17 , wherein the tripod button mechanism further comprising:
 a button automatic reposition structure for automatically repositioning the button from the supporting structure, wherein, the button automatic reposition structure comprises a trigger portion, formed on one side of the button that faces the angle position locking structure, and a blocking portion, disposed on the angle position locking structure;   during the process of opening the supporting leg, a torque reacted by the blocking portion on the trigger portion is greater than a torque that the biasing force acts on the button, and both of the torques have opposite directions.   
     
     
         19 . A tripod comprising:
 a leg angle adjustment mechanism, said leg angle adjustment mechanism comprising:   an angle position locking structure comprising a profiled gear fixedly arranged on a body of a tripod, wherein the profiled gear provides teeth extending in a radial direction thereof;   a button structure, comprising a button disposed rotatably on a leg shaft sleeve of the tripod through a first shaft, wherein, the button has a joint adapted for jointing with a limitation structure of the angle position locking structure, and the joint joints with the limitation structure to lock an opening angle of a supporting leg of the tripod;   a supporting structure; wherein the supporting structure abuts against the button when the joint joints with the limitation structure, and   an extension line of a connection line between the supporting position of the support structure and the joint intersects with an extension line of the supporting leg extended towards one end where the angle position locking structure is located, which causes the supporting structure to apply an acting force to the button to allow the button to have a tendency of rotating towards the angle position locking structure.   
     
     
         20 . The tripod according to  claim 19 , wherein:
 the teeth comprise a shape of an arc;   the teeth comprise a circular transition structure at a cusp of the teeth;   a top portion of the profiled gear is in the form of a circular arc surface, so that the trigger portion abuts against the blocking portion, and the joint of the button is caused by the button automatic reposition structure to snap onto the circular arc surface.