The invention discloses a linkage mechanism which comprises a first joint, a second joint, an upper pipe, a front pipe and a rear pipe. The first joint is hinged to the second joint; the near end of the upper pipe is fixedly connected to the first joint; the near end of the rear pipe is fixedly connected to the second joint; the near end of the front pipe is hinged to the first joint; and the first joint is hinged to a linkage sliding sleeve, and the linkage sliding sleeve is connected to the front pipe in a sliding and sleeving mode. The invention further discloses a folding frame and a cart. The invention has the beneficial effect that the flexibility of unfolding or folding can be kept.

    本发明公开了一种联动机构,包括第一关节、第二关节、上管、前管、后管;所述第一关节和第二关节相铰接;所述上管的近端固定连接在第一关节上;所述后管的近端固定连接在第二关节上;所述前管的近端铰接在第一关节上;所述第一关节铰接有联动滑套,所述联动滑套滑动套接在前管上。本发明还公开了一种折叠架以及一种推车。本发明的有益效果在于,可以保持展开或折叠的灵活性。


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    Title :

    Linkage mechanism, folding frame and cart


    Additional title:

    一种联动机构、折叠架以及推车


    Contributors:
    YOU XIONGBING (author) / XIANG ERYING (author) / WANG ZHEN (author)

    Publication date :

    2021-12-28


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B62B Von Hand bewegte Fahrzeuge, z.B. Handkarren oder Kinderwagen , HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS



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