The invention, which relates to the field of fitness equipment, particularly discloses a front-drive tricycle. The distance between two rear wheels of the front-drive tricycle can be adjusted througha distance adjusting shaft, distance adjusting screw sleeves, a distance adjusting screw cylinder and the like. The driving of the front wheel is realized by a combined wheel shaft structure capable of freely shifting gears for transmission. A driving shaft, an inner cylinder and an outer hub are arranged. The driving shaft is composed of an end plate, a forward rotation wire section, a reverse rotation wire section and a smooth wire section that have outer diameters reduced gradually; clutch baffle plates are arranged on the two rotation wire sections; the inner cylinder is sleeved on the driving shaft and is internally provided with two clutch check rings, a clutch check disc on the forward rotation wire section is arranged between the two clutch check rings; the smooth wire section matches a smooth rotary disc provided with a traction fork, the traction fork is inserted into the two clutch check rings, a fixed rotation stopping disc is arranged outside the smooth rotary disc; and the outer hub sleeves the outside of the inner cylinder. The tricycle can rotate forwards or can also rotate reversely.

    本发明涉及健身设备领域,特别公开了一种前驱三轮自行车,它的两个后轮之间的距离能够通过调距轴、调距丝套、调距丝筒等调节;前轮的驱动由可自由换档传动的组合轮轴结构来实现,它由驱动轴、内筒和外轮毂套在一起组成,驱动轴由外径依次减小的端板、正旋丝段、反旋丝段和平滑丝段组成,两个旋丝段上分别有一个离合档盘,内筒套在驱动轴上,内筒内由两个离合挡圈,正旋丝段上的离合档盘位于两个离合挡圈之间,平滑丝段配套平滑旋盘,平滑旋盘上有牵制叉,牵制叉插入两个离合档盘内,平滑旋盘外为固定阻旋盘,外轮毂套在内筒外,外轮毂固定在前轮上。本发明既可以正转,也可以反转。


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    Title :

    Front-drive tricycle


    Additional title:

    一种前驱三轮自行车


    Contributors:
    ZHANG HAISONG (author) / MA NIANCHI (author) / MA SEN (author) / LIU RUIYING (author) / MA WANGUO (author) / MA XIAOHAN (author) / CHAO WENGUANG (author)

    Publication date :

    2020-04-17


    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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