The invention discloses a chainless drive variable-speed bicycle. The bicycle comprises a front tube, the upper end of the front tube is rotationally connected with a handle, the lower end of the front tube is rotationally connected with a front fork, and the lower end of the front fork is in rolling connection with a front wheel. According to the bicycle, the force transmission arm, the upper arc-shaped rack, the lower arc-shaped rack, the arc-shaped rack and the first variable-speed sliding block are arranged to replace a conventional chain to transmit power, and the two one-way ball gears placed in the forward direction and the reverse direction are arranged, so that the rack can rotate in the rotating direction of the output shaft without reversing the output shaft; in reciprocating, the wheel can be kept to rotate in one direction always; and through simultaneously placing vertical arc-shaped racks at the left part and the right part, the feet can function on a back wheel in vertical functioning on pedals, and furthermore the wheels are driven to operate; the bicycle has the advantages that the bicycle is novel in speed change, simple in structure, high in speed ratio, and labor-saving in riding. Parts are not easy to damage, and energy transmission efficiency is high.

    本发明公开了一种无链条驱动变速自行车。包括前管,所述前管的上端转动连接有手把,所述前管的下端转动连接有前叉,所述前叉的下端滚动连接有前轮。该发明装置通过设置传力臂、上弧形齿条、下弧形齿条、弧形齿条和第一变速滑块替代常规的链条传递动力,通过设置采用2个正反方向放置的单向滚珠齿轮,使得齿条可以在不颠倒输出轴的旋转方向的情况,来回交替移动时都能够确保使车轮始终保持一个方向旋转,左右同时放置上下一堆弧形齿条可以使脚上下作用于脚踏板时都能够作用于后轮,进而驱动车轮行驶,该发明装置相比常规自行车变速新颖,结构简单,速比多,骑行省力,零件不易损坏,能量传递效率高。


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    Title :

    Chainless drive variable-speed bicycle


    Additional title:

    一种无链条驱动变速自行车


    Contributors:
    LI YONGTAO (author)

    Publication date :

    2020-11-17


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B62M RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES , Antrieb von Radfahrzeugen oder Schlitten durch den Fahrer



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