The invention discloses a carbon fiber bicycle crank assembly which comprises a left crank and a right crank which are connected through a metal connecting assembly. The metal connecting assembly comprises an outer shaft sleeve, a left connecting sleeve, a right connecting sleeve, a left fixing sleeve, a right fixing sleeve and an inner bolt locking assembly, a left bayonet for clamping one end of the left fixing sleeve is formed in the inner side end of the left crank, and a right bayonet for clamping one end of the right fixing sleeve is formed in the inner side end of the right fixing sleeve; the end, away from the right crank, of the right fixing sleeve is slidably sleeved with the right connecting sleeve, the other end of the right connecting sleeve is in threaded connection with the outer shaft sleeve, the ends, close to each other, of the left fixing sleeve and the right fixing sleeve are provided with meshing teeth, and axial sliding is locked and limited through an inner bolt locking assembly after the meshing teeth of the left fixing sleeve and the right fixing sleeve are meshed. According to the bicycle crank assembly, the stability of the bicycle crank assembly in the using process can be improved through the design that the left fixing sleeve and the right fixing sleeve are meshed with each other and the mode that the outer shaft sleeve is locked with internal and external threads of the internal bolt locking assembly.

    本发明公开了一种碳纤维自行车曲柄组件,包括左曲柄以及右曲柄,左曲柄与右曲柄之间通过金属连接组件进行连接;金属连接组件包括外轴套、左衔接套、右衔接套、左固定套、右固定套、内螺栓锁紧组件组成,左曲柄内侧端设有供左固定套一端卡接的左卡口,右固定套内侧端设有供右固定套一端卡接的右卡口,右衔接套滑动套设于右固定套远离右曲柄的一端、另一端与外轴套螺纹连接,左固定套与右固定套相互靠近的一端均设有咬合齿,左固定套与右固定套的咬合齿啮合后通过内螺栓锁紧组件锁紧限制轴向滑动,本发明通过左固定套与右固定套相互咬合设计,并通过外轴套与内螺栓锁紧组件的内外螺纹锁紧的方式,可提高自行车曲柄组件使用过程中的稳定性。


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    Titel :

    Carbon fiber bicycle crank assembly


    Weitere Titelangaben:

    一种碳纤维自行车曲柄组件


    Beteiligte:
    HUANG CHENGBI (Autor:in) / DENG YUANSONG (Autor:in)

    Erscheinungsdatum :

    30.05.2025


    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



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