,The invention discloses a bicycle crank convenient to replace. The bicycle crank comprises a first crank body and a second crank body, a connecting block is fixedly arranged on one side of the upper end of the first crank body, a connecting rod is fixedly arranged in the middle of the side, away from the first crank body, of the connecting block, a gear movably sleeves the middle of the surface of the connecting rod a fixing frame is fixedly arranged on the side, close to the first crank, of the gear, an inserting block is fixedly arranged at the end, away from the connecting block, of the connecting rod, an inserting groove is fixedly formed in the middle of the surface of the upper end of the second crank, a first clamping mechanism is arranged in the inserting block, the first clamping mechanism comprises first clamping blocks, a first clamping groove, a transmission rod, a telescopic rod, an extrusion block and a moving block, and the plurality of first clamping blocks are uniformly and fixedly arranged on the periphery of the outer side surface of the insertion block. The bicycle crank is good in use effect, the first crank and the second crank can be conveniently disassembled and assembled, and meanwhile the first crank and the gear can be conveniently disassembled and assembled.

    本发明公开了一种便于更换的自行车曲柄,包括第一曲柄与第二曲柄,所述第一曲柄上端一侧固定设置有连接块,所述连接块远离第一曲柄的一侧中部固定设置有连接杆,所述连接杆表面中部活动套设有齿轮,所述齿轮靠近第一曲柄的一侧固定设置有固定框架,所述连接杆远离连接块的一端固定设置有插块,所述第二曲柄上端表面中部固定设置有插槽,所述插块内部设置有第一卡合机构,所述第一卡合机构包括第一卡块、第一卡槽、传动杆、伸缩杆、挤压块、移动块,所述插块外侧表面四周均匀固定设置有若干第一卡块。本发明使用效果好,可以便于第一曲柄与第二曲柄之间的拆卸与安装,同时也便于第一曲柄与齿轮之间的拆卸与安装。


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    Title :

    Bicycle crank convenient to replace


    Additional title:

    一种便于更换的自行车曲柄


    Contributors:
    WEI NAIGUO (author)

    Publication date :

    2021-07-02


    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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