The invention is applicable to the technical field of bicycles, and provides a variable-speed rotating handle with a labor-saving mechanism, which comprises a handlebar, a seat frame fixedly mounted on the inner side of the handlebar, a brake cable hanging ring rotatably mounted in the seat frame and used for driving a brake cable to move, and a rotating grip rotatably mounted on the outer side of the handlebar and in transmission connection with the brake cable hanging ring. When the rotating grip is rotated, the brake cable hanging ring pulls the brake cable to do reciprocating linear motion, so that the derailleur is pulled through the brake cable to change the speed; the device further comprises a supporting assembly, and the supporting assembly is installed on the seat frame and used for supporting the brake cable in a rolling mode when the brake cable is tensioned. A labor-saving mechanism (namely the supporting assembly) is additionally arranged on the basis of an existing rotating handle, sliding friction between a brake cable and a seat frame is changed into rolling friction, friction force between the brake cable and the seat frame is reduced, the situation that a user needs a large moment to rotate the rotating handle during speed changing is avoided, and the use experience feeling of a client is improved.
本发明适用于自行车技术领域,提供了一种带有省力机构的变速转把,包括车把手,车把手内侧固定安装有座架,座架内转动安装有用于带动刹车线运动的刹车线挂圈,车把手外侧转动安装有转动握把,且转动握把与刹车线挂圈传动连接,当转动转动握把时,刹车线挂圈拉动刹车线做往复直线运动,从而通过刹车线拉动拨链器变速;还包括支撑组件,支撑组件安装在座架上,且支撑组件用于在刹车线张紧时对其进行滚动支撑。本发明在现有的转把基础上增加了一种省力机构(即支撑组件),把刹车线和座架的滑动摩擦变成了滚动摩擦,减少了刹车线和座架的摩擦力,避免用户在变速的时候需要很大的力矩才能转动转把,改善客户使用体验感。
Variable-speed rotating handle with labor-saving mechanism
一种带有省力机构的变速转把
2023-10-13
Patent
Electronic Resource
Chinese
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