Easy-to-disassemble connecting rod with cam structure

Abstract

An easy-to-disassemble connecting rod with a cam structure includes a connecting rod and cams. Two ends of the connecting rod are hinged with the cams. An outer side surface of each cam includes an arc surface, a radius of curvature of the arc surface of each cam around a shaft hole gradually increases, and rotation directions of the two cams are opposite. The technical effects achieved are as follows: in the easy-to-disassemble connecting rod with a cam structure provided by the connecting rod, two ends of the rod contact with the supporting surface via the cams, the pressure on the wall is increased or decreased via radius change caused by rotation of the cams, and further the friction force is increased or decreased, so as to achieve safe and rapid installation or disassembly.

What is claimed is: 
     
         1 . An easy-to-disassemble connecting rod with a cam structure, comprising a connecting rod and two cams, wherein two ends of the connecting rod are hinged with the two cams, respectively, an outer side surface of each of the two cams comprises an arc surface, a radius of a curvature of the arc surface of each of the two cams around a shaft hole gradually increases, and rotation directions of the two cams are opposite. 
     
     
         2 . The easy-to-disassemble connecting rod with the cam structure according to  claim 1 , wherein a shaft hole is defined on each of the two cams, and the two ends of the connecting rod are each provided with a rotating shaft, the shaft hole of each of the two cams is correspondingly fitted on the rotating shaft, and each of the two cams is configured to rotate around the corresponding rotating shaft. 
     
     
         3 . The easy-to-disassemble connecting rod with the cam structure according to  claim 1 , wherein a distance between an edge point on the arc surface of each of the two cams and a center of the shaft hole corresponding to the arc surface gradually increases. 
     
     
         4 . The easy-to-disassemble connecting rod with the cam structure according to  claim 1 , wherein each of the two cams has an involute shape. 
     
     
         5 . The easy-to-disassemble connecting rod with the cam structure according to  claim 1 , wherein the arc surface of each of the two cams is made of a non-slip material. 
     
     
         6 . The easy-to-disassemble connecting rod with the cam structure according to  claim 5 , wherein the arc surface of each of the two cams is provided with a gear surface. 
     
     
         7 . The easy-to-disassemble connecting rod with the cam structure according to  claim 6 , wherein the gear surface of each of the two cams is configured to abut against a wall supporting surface, and the wall supporting surface is provided with tooth grooves adapted to the gear surface of each of two the cams. 
     
     
         8 . The easy-to-disassemble connecting rod with the cam structure according to  claim 2 , wherein the rotating shaft is connected with a connecting cap and the connecting cap is nested on the connecting rod.