A folding bicycle frame connecting structure is mainly composed of a center shaft tube (2), a limiting buckle ring (3) buckled above the center shaft tube (2), a tail seat (4) installed at the rear end of a main bicycle frame (1) outside the center shaft tube (2), a fixing seat (5) and a rear wheel fork (9) installed at the rear end of the fixing seat (5). The bicycle frame is characterized in that the buckle ring (3) is buckled on a buckle ring installation groove (10) above the middle shaft tube (2), the lower portion of the middle shaft tube (2) penetrates through a vertical through hole (12) of a tail seat (4) at the rear end of the main bicycle frame (1) to be connected to a fixed seat vertical through hole (13) of the fixed seat (5), and installation is fast and convenient. In addition, the structure is simple, parts can be modularly produced, the material cost is reduced, the weight of the whole vehicle is reduced, the productivity is improved, and the cost of the whole vehicle is reduced.

    一种折叠自行车车架连接结构,主要由中轴管(2),卡扣在中轴管(2)上方的限位卡扣环(3)和安装在中轴管(2)外面的主车架(1)后端的尾座(4),固定座(5)和安装在固定座(5)后端后轮叉(9)组成。其特征在于:卡扣环(3)卡扣在中轴管(2)上方的卡扣环安装槽(10)上,中轴管(2)下方穿过主车架(1)后端尾座(4)的竖立通孔(12)连接在固定座(5)的固定座竖立通孔(13)上,安装快捷方便。另外本发明还具有结构简单,零部件可以模块化生产,降低材料成本,减轻整车重量,提高产能降低整车成本等优点。


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    Title :

    Frame connecting structure of folding bicycle


    Additional title:

    一种折叠自行车车架连接结构


    Contributors:
    HAN HONGDA (author)

    Publication date :

    2024-08-06


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B62K Fahrräder , CYCLES



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