The invention belongs to the technical field of bicycle parts, and discloses a center shaft mechanism and a bicycle, the center shaft mechanism comprises a frame, a center shaft, a first rotating piece, a third limiting piece and a second rotating piece, the center shaft penetrates through the frame, the first limiting piece and the second limiting piece are arranged on the center shaft, the first rotating piece is used for supporting rotation of one end of the center shaft, and the third limiting piece is used for supporting rotation of the other end of the center shaft; the second rotating part is used for supporting rotation of the other end of the middle shaft, the third limiting part is located on the side, away from the first limiting part, of the second limiting part, and the third limiting part is connected with the frame to limit axial movement of the first rotating part and the second rotating part; and the bicycle comprises the center shaft mechanism. According to the center shaft mechanism, a five-way pipe and a wire bowl on one side are omitted, the center shaft is directly installed on the bicycle frame, the third limiting piece is matched with the bicycle frame to axially limit the first rotating piece and the second rotating piece, the structure is simple, and then the assembling operation of the bicycle is simplified.

    本发明属于自行车零部件技术领域,公开一种中轴机构及自行车,中轴机构包括车架、中轴、第一转动件、第三限位件和第二转动件,中轴贯穿车架,中轴上设置有第一限位件和第二限位件,第一转动件用于支撑中轴一端的转动,第二转动件用于支撑中轴另一端的转动,第三限位件位于第二限位件远离第一限位件的一侧,第三限位件与车架连接以限制第一转动件和第二转动件的轴向移动;自行车包括上述的中轴机构。中轴机构取消五通管和一侧的丝碗,直接将中轴安装于车架上,第三限位件配合车架对第一转动件和第二转动件进行轴向限位,结构简单,进而简化了自行车的装配操作。


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    Title :

    Center shaft mechanism and bicycle


    Additional title:

    一种中轴机构及自行车


    Contributors:
    YU TONGFU (author) / SUN HAILIN (author) / DU FEI (author) / LIU XIAOKAI (author)

    Publication date :

    2021-11-12


    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 / F16C SHAFTS , Wellen



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