The invention relates to the technical field of bicycles, in particular to a chainless bicycle which comprises a bicycle body, a rear axle, a rotating shell, a ratchet wheel, a pawl, a torsional spring, a traction rope, a pedal assembly and a hub. The rear axle is fixedly connected with the bicycle body, the rotating shell and the hub are both installed on the rear axle in a rotating mode, the ratchet wheel is connected with the hub through a key, the pawl is connected with the rotating shell through a compression spring and matched with the ratchet wheel, and the two ends of the torsion spring are connected with the rear axle and the rotating shell respectively. One end of the traction rope is fixedly connected with the rotating shell and is wound on the surface of the rotating shell, when the traction rope is unwound, the ratchet wheel and the pawl are locked, and the hub rotates towards the advancing direction of the bicycle body; one position of the pedal assembly is rotatably connected with the bicycle body, and the other end of the traction rope is rotatably connected with the other position of the pedal assembly. The transmission efficiency and the acceleration capacity of the chainless bicycle are improved.

    本发明涉及自行车技术领域,尤其涉及一种无链条自行车,包括车身、后轮轴、转动壳体、棘轮、棘爪、扭簧、牵拉绳、踏板组件和轮毂;所述后轮轴与车身固定连接,所述转动壳体和轮毂均转动安装在后轮轴上,所述棘轮通过键与轮毂连接,所述棘爪通过压缩弹簧与转动壳体连接并与所述棘轮配合,所述扭簧的两端分别与后轮轴和转动壳体连接,所述牵拉绳的一端与转动壳体固定连接并缠绕于转动壳体的表面,当所述牵拉绳放卷时,所述棘轮与棘爪锁定,所述轮毂向车身前进方向转动;所述踏板组件的一处与车身转动连接,所述牵拉绳的另一端与踏板组件的另一处转动连接。本发明提高了无链条自行车的传动效率及加速能力。


    Access

    Download


    Export, share and cite



    Title :

    Chainless bicycle


    Additional title:

    一种无链条自行车


    Contributors:
    LIN MAOYONG (author) / LIN DAOYI (author) / HUANG JIANHUA (author) / CHEN HANG (author) / LAN YUHUI (author)

    Publication date :

    2021-01-01


    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



    CHAINLESS BICYCLE

    LEE JONG EUN | European Patent Office | 2016

    Free access

    chainless bicycle

    European Patent Office | 2019

    Free access

    CHAINLESS ELETRIC BICYCLE

    European Patent Office | 2015

    Free access

    chainless bicycle

    LEE MOON GU / LEE DONG LIM | European Patent Office | 2019

    Free access

    CHAINLESS BICYCLE

    European Patent Office | 2017

    Free access