The invention discloses a chainless bicycle transmission shaft which comprises a transmission shaft assembly which is integrally and freely detachably mounted, the transmission shaft assembly comprises an assembly shell, a front transmission gear assembly and a rear transmission gear assembly, the front transmission gear assembly and the rear transmission gear assembly are in transmission connection through the transmission shaft assembly, and a hollow cavity is formed in the front transmission gear assembly; and the hollow cavity is matched with a driving piece in the middle of the bicycle. According to the chainless bicycle transmission shaft, the transmission shaft assembly can be directly arranged on the middle driving piece of the bicycle in a sleeving mode, the rear transmission gear assembly is directly arranged on the axle of the rear wheel, and therefore the transmission shaft assembly can be rapidly installed and conveniently disassembled, and the transmission shaft assembly can be suitable for various types of bicycles; and the free integral disassembly and assembly of the transmission shaft assembly are realized. The problem that an existing transmission shaft cannot be freely detached and integrally installed on a middle shaft and a middle gearbox of a bicycle is effectively solved.

    本发明公开了一种无链条自行车传动轴,包括整体自由拆卸式安装的传动轴总成,所述的传动轴总成包括总成壳体、通过一传动轴组件传动连接的前部传动齿轮组件和后部传动齿轮组件,所述的前部传动齿轮组件中设置有中空腔体,所述的中空腔体与自行车中部驱动件配合设置。该无链条自行车传动轴,传动轴总成可以直接套装在自行车中部驱动件上,而后部传动齿轮组件直接安装在后轮的轮轴上,则实现了传动轴总成的快捷安装,而且拆卸方便,使得传动轴总成可以适用于各种类型的自行车,实现了传动轴总成的自由整体拆卸安装。有效解决了解决现有传动轴不能自由拆卸整体安装在自行车中轴及中置变速箱的问题。


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    Title :

    Chain-free bicycle transmission shaft and bicycle


    Additional title:

    一种无链条自行车传动轴及自行车


    Contributors:
    LYU YIFEI (author)

    Publication date :

    2025-05-16


    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



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