The invention relates to the technical field of bicycle parts, and discloses a multi-terrain automatic expansion type bicycle hub mechanism which comprises a rotating disc, an inner ring supporting ring is fixedly connected to the outer side of the rotating disc, an outer ring supporting ring is fixedly connected to the outer side of the inner ring supporting ring, and a multi-stage chain wheel isrotatably connected to the front face of the rotating disc. The back face of the multi-stage chain wheel is rotationally connected with an expansion driving wheel, and the outer side of the expansiondriving wheel is connected with a differential gear in an engaged mode. According to the multi-terrain automatic expansion type bicycle hub mechanism, an expansion driving wheel drives a differentialgear to rotate, the differential gear drives a driven wheel to rotate, the driven wheel drives a supporting rod to expand outwards through an expansion wheel, the supporting rod drives an expansion jacking rod to expand, the expansion jacking rod drives a supporting piston rod and a steel ring to expand, and the steel ring drives a tire to expand; and the piston cylinder and other mechanisms arematched for use, so that the effects of automatic supporting, easiness and labor saving after tire expansion are achieved.

    本发明涉及自行车零部件技术领域,且公开了一种多地形自动扩展式自行车轮毂机构,包括旋转盘,所述旋转盘的外侧固定连接有内圈支撑环,所述内圈支撑环的外侧固定连接有外圈支撑环,所述旋转盘的正面转动连接有多级链轮,所述多级链轮的背面转动连接有扩展主动轮,所述扩展主动轮的外侧啮合连接有差动齿轮。该多地形自动扩展式自行车轮毂机构,通过扩展主动轮带动差动齿轮旋转,差动齿轮带动从动轮旋转,从动轮通过扩展轮带动支撑杆向外扩展,支撑杆带动扩展顶升杆扩展,扩展顶升杆带动支撑活塞杆和钢圈伸张,钢圈带动车胎扩张,再通过活塞缸等机构的配合使用,从而达到轮胎扩展后自动支撑,轻松省力的效果。


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    Title :

    Multi-terrain automatic expansion type bicycle hub mechanism


    Additional title:

    一种多地形自动扩展式自行车轮毂机构


    Contributors:

    Publication date :

    2021-01-29


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60B VEHICLE WHEELS , Räder für Fahrzeuge



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