Locking mechanism for upright post of walking machine

Abstract

The present disclosure provides a locking mechanism for an upright post of a walking machine, which comprises a first component fixed on a walking machine frame, a second component fixed on a upright post of the walking machine, and a third component movably arranged between the first component and the second component, wherein the first component is provided with a first accommodating groove, and the third component comprises a connecting rod, a wrench rotatably connected with the connecting rod, and a movable member partially accommodated in the first accommodating groove; the movable member comprises a protruding part protruding from the first accommodating groove, a main body part connected with the protruding part, and a spring located at one end of the main body away from the protruding part; when the spring is not stressed, the second component can rotate relative to the first component. The relative motion between the first component and the second component is limited by the position change of the movable component, which is easy to operate, safe and stable.

What is claimed is: 
     
         1 . A locking mechanism for an upright post of a walking machine, comprising a first component fixed to a frame of the walking machine, a second component fixed to the upright post of the walking machine, and a third component movably arranged between the first component and the second component, wherein the first component is provided with a first accommodating groove, and the third component comprises a connecting rod, a wrench rotatably connected with the connecting rod, and a movable member partially accommodated in the first accommodating groove; the movable member comprises a protruding part which can protrude from the first accommodating groove, a main body part connected with the protruding part and a spring located at one end of the main body part far away from the protruding part; and when the spring is not stressed, the second component can rotate relative to the first component. 
     
     
         2 . The locking mechanism for an upright post of a walking machine according to  claim 1 , wherein the second component is rotatably connected with the first component through a screw, and the second component is provided with a second accommodating groove which can enclose a first accommodating space with the first accommodating groove and a third accommodating groove which can enclose a second accommodating space with the first accommodating groove; when the spring is not stressed, the movable member can move between the second accommodating groove and the third accommodating groove. 
     
     
         3 . The locking mechanism for an upright post of a walking machine according to  claim 2 , wherein the main body part comprises a first part connected with the protruding part and a second part connected with the spring; a thickness of the first part is smaller than that of the protruding part, and a width of the second part is larger than that of the protruding part; the first accommodating groove comprises a front groove for accommodating the first part and a rear groove for accommodating the second part, and a distance that the second part can move in the rear groove is equal to a distance that the protruding part can move in the front groove. 
     
     
         4 . The locking mechanism for an upright post of a walking machine according to  claim 3 , wherein the first part is generally fan-shaped, a width of an end of the first part close to the protruding part is greater than that of an end of the first part close to the second part; a width of an open end of the front groove of the first accommodating groove is greater than that of an end of the front groove communicating with the rear groove. 
     
     
         5 . The locking mechanism for an upright post of a walking machine according to  claim 3 , wherein the first component comprises a through hole for accommodating the screw and a limit post located on a reverse extension line of a connecting line between the center of the through hole and the center of the first accommodating groove; the second component is provided with a chute corresponding to the limit post, and when the second component rotates relative to the first component, the limit post moves in the chute. 
     
     
         6 . The locking mechanism for an upright post of a walking machine according to  claim 3 , wherein the wrench comprises an abutting part connected to the connecting rod and a tail part far away from the connecting rod; when the wrench rotates close to the first component, the abutting part abuts against the protruding part and compresses the spring to make the protruding part enter the front groove. 
     
     
         7 . The locking mechanism for an upright post of a walking machine according to  claim 3 , wherein a stopper is arranged between the second accommodating groove and the third accommodating groove of the second component, and when the protruding part is located in the front groove, the stopper blocks the protruding part so that the second component cannot rotate relative to the first component. 
     
     
         8 . The locking mechanism for an upright post of a walking machine according to  claim 7 , wherein an included angle between two side walls of the stopper is approximately equal to an angle at which the second component can rotate relative to the first component.