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。
Linkage mechanism, folding frame and cart
一种联动机构、折叠架以及推车
2021-12-28
Patent
Electronic Resource
Chinese
IPC: | B62B Von Hand bewegte Fahrzeuge, z.B. Handkarren oder Kinderwagen , HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS |