The invention relates to the technical field of bicycle cranks, and discloses a bicycle flexible crank structure with a compensation function, which solves the problem that legs are easy to be tired and tired during uphill or accelerated riding at present, and comprises a crank, a main shaft is arranged on the outer side of the crank, and a connecting mechanism is mounted between the crank and the main shaft; according to the bicycle, through cooperation between an auxiliary rod and a second movable rod, when the bicycle climbs a slope or rides pedals in an accelerated mode, a first sliding block slides along an L-shaped round rod conveniently, then a first spring is compressed, through cooperation between a first movable rod and a third sliding block, a third spring is compressed, and then the bicycle is driven to run. A second spring is compressed through cooperation of a mounting roller, a mounting frame, a U-shaped round rod and a second sliding block, the first spring, the third spring and the second spring can play a role in flexible pushing near an upper dead center conveniently, the pedal can be pushed over the upper dead center easily, and therefore the feeling of tired legs and fatigue occurring during uphill riding or accelerated riding can be relieved conveniently.
本发明涉及自行车曲柄技术领域,且公开了一种具有补偿功能的自行车柔性曲柄结构,解决了目前上坡或加速骑行时容易出现腿困疲劳的问题,其包括曲柄,所述曲柄的外侧设有主轴,曲柄与主轴之间安装有连接机构;本发明,通过辅助杆和活动杆二之间的配合,当自行车上坡或加速骑行踩蹬脚踏板时,便于滑块一沿着L型圆杆滑动,继而使得弹簧一被压缩,并通过活动杆一和滑块三之间的配合,使得弹簧三被压缩,并通过安装辊和安装框以及U型圆杆和滑块二之间的配合,使得弹簧二被压缩,便于弹簧一和弹簧三以及弹簧二在上止点附近起作用呈柔性推动,便于脚踏板被轻松推越上止点,从而便于缓解上坡或加速骑行时出现的腿困疲劳感。
Bicycle flexible crank structure with compensation function
一种具有补偿功能的自行车柔性曲柄结构
2024-05-10
Patent
Electronic Resource
Chinese
IPC: | B62M RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES , Antrieb von Radfahrzeugen oder Schlitten durch den Fahrer |