The chainless bicycle is mainly characterized in that the cylindrical outer surface of a rear shaft is provided with a plane, and the rear shaft is inserted into a center hole of a hub so that the hub, a rear wheel and the rear shaft can only rotate at the same time; after the bearing and the one-way bearing are installed at one end of the crank, the crank is installed at the two ends of the rear shaft, the pedals are installed at the other end of the crank through the foot shaft, and after a user steps on the pedals, the crank enables the rear shaft to rotate through the one-way bearing to drive the bicycle to move forwards. The outer surface of the groove bearing is a V-shaped or U-shaped annular groove, the groove bearing is installed through a fixing shaft after an upper steel wire penetrates through the blocking pipe, then the blocking pipe is welded to the rear frame, the two ends of the upper steel wire are fixed to the left crank and the right crank, and when the crank on one side is treaded down, the upper steel wire lifts the crank on the other side. The upper end of the vertical rod is welded to the lower portion of the rear frame, the cranks are blocked by the two ends of the cross rod, the rotation angle of the cranks is limited, the lower steel wire penetrates through the groove bearing and the cross rod, and the two ends of the lower steel wire are fixed to the cranks to position the left crank and the right crank.

    本发明公开了一种无链条自行车,主要特征是:后轴的圆柱外表面有平面,后轴插入花鼓中心孔使花鼓、后轮和后轴只能同时旋转;曲柄的一端安装轴承和单向轴承后,将其安装于后轴两头,脚踏通过脚轴安装于曲柄的另一端,当使用者踩下脚踏后,曲柄通过单向轴承使后轴旋转带动自行车前行;槽轴承外表面为“V”或“U”形环槽,挡管内穿过上钢丝后用固定轴安装槽轴承,再将挡管焊接于后架上面,上钢丝的两头固定于左、右曲柄上,当一侧的曲柄被踩下时,上钢丝吊起另一侧的曲柄;竖杆的下端焊接横杆,竖杆的上端焊接于后架下面,横杆的两头挡住曲柄,对曲柄旋转的角度进行限制,下钢丝穿过槽轴承和横杆,两头固定于曲柄上,对左、右曲柄进行定位。


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    Title :

    Chainless bicycle


    Additional title:

    一种无链条自行车


    Publication date :

    2024-05-17


    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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