The invention provides an electric bicycle capable of preventing a chain from falling automatically. The electric bicycle comprises a bicycle frame, the bicycle frame comprises a front-section rod frame, a front lamp is arranged in the front end of the front-section rod frame, the rear end of the front-section rod frame is hinged to the front end of a rear-section rod frame, the rear end of the rear-section rod frame is sleeved with an end cover, a lithium battery is arranged in the front-section rod frame, and a bayonet socket is arranged at the rear end of the front-section rod frame. A plugis arranged at the front end of the rear-section rod frame and connected with a controller, the controller is connected with a motor in a rear wheel, the rear wheel is installed in a bottom frame, the front end of the bottom frame is fixedly connected with a shaft barrel, the shaft barrel is fixedly connected with a V-shaped supporting rod, the upper end of the V-shaped supporting rod is fixedlyconnected with the rear-section rod frame, the upper plane of the rear-section rod frame is connected with an end barrel in a penetrating manner, a saddle rod is sleeved with the end barrel, the interior of a shaft barrel is connected with a rotating shaft through a bearing, and the right end of the rotating shaft is connected with a flower wheel disc which is meshed with a flywheel on the rear wheel through the chain. The bearing capacity is enhanced through the triangular bicycle frame, the material consumption of the bicycle frame is reduced, the dead weight is reduced, and the cost is saved.

    本发明公开了一种避免链条自行脱落的电动自行车,包括车架,所述车架包括前段杆架,前段杆架的前端内设置前灯,其后端铰接后段杆架的前端,后段杆架的后端套装端罩,前段杆架内内置锂电池,前段杆架的后端设置插接座,后段杆架的前端设置插接头,插接头连接控制器,控制器连接后轮内的电机,后轮安装于底架内,底架前端固接轴筒,轴筒上固接V形撑杆,V形撑杆上端固接于后段杆架,后段杆架上平面贯通连接端筒,端筒内套装车座杆,轴筒内通过轴承连接转轴,转轴右端连接花轮盘,花轮盘通过链条啮合连接后轮上的飞轮;通过三角形状的车架加强承载能力,减少车架用料,减少自重,节约成本。


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    Title :

    Electric bicycle capable of preventing chain from falling automatically


    Additional title:

    一种避免链条自行脱落的电动自行车


    Contributors:
    CHEN DONGMU (author)

    Publication date :

    2021-02-09


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B62K Fahrräder , CYCLES / B62M RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES , Antrieb von Radfahrzeugen oder Schlitten durch den Fahrer