A foldable crank of an electric vehicle relates to the field of foldable cranks of electric vehicles, and is characterized in that a limiting circular groove in a limiting structure with the publication number of CN107697218A is improved into a deep hole or a deep groove, and an ejector rod adopts an elastic limiting hand pulling device; after the lower crank is opened, the limiting rod is pushed into the limiting hole or the limiting groove by the spring force to prevent the lower crank from being folded outwards; after the lower crank is opened, the plane, close to the back face, of the top face of the lower crank abuts against the upper face in the concave structure or a limiting block on the upper face of the back face of the lower crank hooks the back face of the concave structure below the upper crank, so that the lower crank cannot be bent inwards, and the risk that the connecting rod is suddenly bent to cause pedaling is eliminated. The invention is suitable for replacing the short crank of the electric bicycle, the riding safety of the electric bicycle can be ensured when the crank is folded and limited, and the length of the crank is increased after the crank is unfolded so as to be suitable for adults to ride.

    一种电动车的可折曲柄,涉及电动车可折曲柄领域,通过将公布号CN107697218A中的限位结构中的限位圆形凹槽改进为深孔或深槽,顶杆采用弹力限位手拉装置:手动把限位杆从限位孔或限位槽拉出,限位杆弹力插入限位孔或限位槽的方式,使得下曲柄打开之后限位杆被弹簧力推进限位孔或限位槽而限制住下曲柄向外折,下曲柄打开之后通过下曲柄顶面靠近背面的平面抵住凹形结构里面的上面或下曲柄背面的上面的限位块挂住上曲柄下面的凹形结构的背面而使下曲柄不会向内折,消除了连接杆突然折弯造成蹬车的风险。本发明适合更换电动自行车的短曲柄,曲柄折了并且被限位时能保证电动自行车的骑行安全,打开之后增长曲柄的长度而适合成年人骑行。


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    Titel :

    Foldable crank of electric vehicle


    Weitere Titelangaben:

    一种电动车的可折曲柄


    Beteiligte:
    PENG LIANG (Autor:in)

    Erscheinungsdatum :

    2024-01-23


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

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



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