The invention discloses a labor-saving bicycle. The labor-saving bicycle comprises a bicycle frame, a rear wheel, a front wheel, a handle, a front fork, a rear wheel shaft, a first flywheel, a brake disc, a brake clamp, a middle shaft and a chain wheel, wherein the rear wheel shaft is arranged at the rear end of the bicycle frame, the rear wheel is arranged on the rear wheel shaft, the first flywheel is arranged on one side of the rear wheel on the rear wheel shaft, the brake disc is arranged on the side, away from the rear wheel, of the first flywheel on the rear wheel shaft, the brake clampis arranged at the rear end of the bicycle frame and matched with the brake disc, the middle shaft is arranged in the middle of the bicycle frame, the chain wheel is arranged on one side, on the middle shaft, of the bicycle frame, the first flywheel is connected with the chain wheel through a chain, the front fork is rotatably arranged at the front end of the bicycle frame, the front wheel is arranged at the lower end of the front fork, and the handle is arranged at the upper end of the front end. The labor-saving bicycle is characterized by further comprising discs and cranks, the discs are symmetrically arranged on the middle shaft, the circle centers of the discs do not coincide with the circle center of the middle shaft, rails are arranged on the discs, fixing plates are symmetricallyarranged at the two ends of the middle shaft, bolts are symmetrically arranged on the fixing plates, and first rolling wheels are rotatably arranged on the bolts.

    本发明公开了一种省力自行车,包括车架、后轮、前轮、把手、前叉、后轮轴、第一飞轮、刹车碟盘、刹车夹器、中轴和链轮,后轮轴设置在车架后端,后轮设置在后轮轴上,第一飞轮设置在后轮轴上后轮的一侧,刹车碟盘设置在后轮轴上第一飞轮远离后轮的一侧,刹车夹器设置在车架后端,刹车夹器和刹车碟盘配合,中轴设置在车架中部,链轮设置在中轴上车架的一侧,第一飞轮和链轮通过链条连接,前叉转动设置在车架前端,前轮设置在前叉下端,把手设置在前叉上端,其特征在于:还包括圆盘和曲柄,圆盘对称设有中轴上,圆盘的圆心和中轴的圆心不重合,圆盘上设有轨道,中轴的两端均对称设有固定板,固定板上对称设有螺栓,螺栓上转动设有第一滚轮。


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    Title :

    Labor-saving bicycle


    Additional title:

    一种省力自行车


    Contributors:
    CHEN BO (author)

    Publication date :

    2020-12-08


    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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