The chainless bicycle is mainly characterized in that L-shaped left and right rotating shafts are mounted at two ends of a rear axle of a rear wheel of the bicycle, one ends of the left and right rotating shafts are mounted at one ends of left and right connecting rods through bearings, and the other ends of the left and right connecting rods are mounted at one ends of left and right cranks through bearings and left and right connecting shafts; pedals are mounted at the other ends of the left and right cranks through foot shafts and the like, bent parts of the left and right cranks are mounted on the left and right plates through left and right fixed shafts, the left and right cranks take the left and right fixed shafts as original points, and the up-and-down reciprocating motion of the left and right cranks is changed into the rotary motion of the left and right rotating shafts through left and right connecting rods to drive the rear wheel to advance; a slope groove is formed in one side face of the limiting block, the foot shaft sleeve is provided with a slope protruding block matched with the slope groove, the limiting block can slide on the slope protruding block of the foot shaft sleeve, the limiting block is pushed to the pedal, the upper protruding column and the lower protruding column of the limiting block are separated from the groove in the crank, and the pedal perpendicular to the crank can be rotated to be in a straight line with the crank.
本发明公开了一种无链条自行车,主要特征是:自行车后轮的后轴两端安装“L”形的左、右转轴,左、右转轴的一端通过轴承安装在左、右连杆的一头,左、右连杆的另一头通过轴承和左、右连轴安装于左、右曲柄的一头,脚踏通过脚轴等安装于左、右曲柄的另一头,左、右曲柄的弯折处用左、右固轴安装于左、右板上,左、右曲柄以左、右固轴为原点,通过左、右连杆将左、右曲柄的上下往复运动变为左、右转轴的旋转运动驱动后轮前进;限位块一侧面有斜面槽,脚轴套有与之相配的斜面凸块,限位块可在脚轴套的斜面凸块上滑动,将限位块推向脚踏,使限位块上、下的凸柱脱离曲柄上的槽,可将垂直于曲柄的脚踏旋转成与曲柄成一条直线。
Chainless bicycle
一种无链条自行车
21.06.2024
Patent
Elektronische Ressource
Chinesisch
IPC: | B62M RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES , Antrieb von Radfahrzeugen oder Schlitten durch den Fahrer |