Elliptical machine

Abstract

Provided is an elliptical machine, including: a left cantilever and a right cantilever hung at a rear end of a frame body; and a left guide arm and a right guide arm pivotally connected to the left cantilever and the right cantilever respectively, where a first matching structure is arranged at a first end of the cantilever, a second matching structure is arranged on the guide arm, and the first matching structure and the second matching structure are a set of a shaft and a bearing assembly capable of being pivotally matched with each other; and the first matching structure is detachably connected to the cantilever, such that the bearing assembly and a shaft core between the cantilever and the guide arm can be conveniently assembled when the cantilever is mounted.

1 . An elliptical machine, comprising:
 a frame body;   a left crank arm and a right crank arm pivotally arranged at a front end of the frame body;   a left cantilever and a right cantilever hung at a rear end of the frame body;   a left guide arm and a right guide arm pivotally connected to the left crank arm and the right crank arm as well as the left cantilever and the right cantilever respectively;   a left pedal assembly and a right pedal assembly pivotally arranged on the left guide arm and the right guide arm respectively;   a left swing arm and a right swing arm pivotally arranged at the front end of the frame body; and   a left link arm and a right link arm coupled to the left swing arm and the right swing arm as well as the left pedal assembly and the right pedal assembly respectively;   wherein a first matching structure is arranged at a first end of each of the left cantilever and the right cantilever, a second matching structure is arranged on each of the left guide arm and the right guide arm, and the first matching structure and the second matching structure are a set of a first shaft and a first bearing assembly configured to be pivotally matched with each other, such that the left cantilever is pivotally connected to the left guide arm and the right cantilever is pivotally connected to the right guide arm; a third matching structure is arranged at a second end of each of the left cantilever and the right cantilever, a fourth matching structure is arranged on the frame body, and the third matching structure and the fourth matching structure are a set of a second shaft and a second bearing assembly configured to be pivotally matched with each other, such that the left cantilever and the right cantilever are respectively pivotally connected to the frame body; and at least one of the first matching structure or the third matching structure is detachably connected to the left cantilever and the right cantilever.   
     
     
         2 . The elliptical machine according to  claim 1 , wherein the first matching structure is a cantilever shaft detachably arranged at one end of each of the left cantilever and the right cantilever, the second matching structure is a guide bearing assembly arranged on each of the left guide arm and the right guide arm, and the guide bearing assembly is pivotally matched with the cantilever shaft. 
     
     
         3 . The elliptical machine according to  claim 1 , wherein each of the left cantilever and the right cantilever further comprises a locking block locked at a first end of a cantilever body and configured to clamp a part of the first matching structure between the locking block and the cantilever body so as to detachably connect the first matching structure to the first end of the cantilever body. 
     
     
         4 . The elliptical machine according to  claim 3 , wherein the first matching structure is a cantilever shaft detachably arranged at one end of each of the left cantilever and the right cantilever, the second matching structure is a guide bearing assembly arranged on each of the left guide arm and the right guide arm, the cantilever shaft comprises a first shaft part and a second shaft part connected to each other, the first shaft part is configured to be pivotally matched with the guide bearing assembly, and the second shaft part is configured to be in locked connection with the cantilever body and the locking block and has a greater diameter than the first shaft part. 
     
     
         5 . The elliptical machine according to  claim 3 , wherein the first matching structure is a cantilever shaft detachably arranged at one end of each of the left cantilever and the right cantilever, the second matching structure is a guide bearing assembly arranged on each of the left guide arm and the right guide arm, the cantilever shaft comprises a first shaft part and a second shaft part connected to each other, the first shaft part is configured to be pivotally matched with the guide bearing assembly, the second shaft part is configured to be in locked connection with the cantilever body and the locking block and is provided with a first matching plane and a second matching plane opposite to each other, and the first matching plane and the second matching plane are matched with the locking block and the cantilever body in an abutting manner respectively. 
     
     
         6 . The elliptical machine according to  claim 5 , wherein a first mounting surface is arranged on the locking block, a first groove is formed in the first mounting surface, and the first matching plane is matched with a first bottom surface of the first groove in an abutting manner; the cantilever body is L-shaped, a notch is provided in the first end of the cantilever body so as to form a second mounting surface on the first end of the cantilever body, the locking block is mounted in the notch, and the first mounting surface is opposite to the second mounting surface; and a second groove is formed in the second mounting surface, and the second matching plane is matched with a second bottom surface of the second groove in an abutting manner. 
     
     
         7 . The elliptical machine according to  claim 6 , wherein there are gaps between side surfaces of the first groove and the second groove and a periphery of the second shaft part of the cantilever shaft. 
     
     
         8 . The elliptical machine according to  claim 6 , wherein one or more limit structures are further arranged at least one of between the first matching plane and the first bottom surface or between the second matching plane and the second bottom surface. 
     
     
         9 . The elliptical machine according to  claim 8 , wherein each of the one or more limit structures is a boss and groove matching structure. 
     
     
         10 . The elliptical machine according to  claim 9 , wherein a cylindrical boss is arranged on the second bottom surface, and a positioning hole matched with the cylindrical boss is provided in the second matching plane.