The invention discloses a cart which comprises a cart frame. The frame comprises a bottom frame assembly, a vertical rod assembly rotationally connected with the bottom frame assembly through a first axis extending in the left-right direction, a wheel assembly rotationally connected with the bottom frame assembly through a second axis extending in the front-back direction, and a linkage mechanism driving the wheel assembly to rotate around the second axis when the vertical rod assembly rotates around the first axis. The linkage mechanism comprises a pull rod arranged on the underframe assembly in a sliding mode in the left-right direction, a first inclined groove is formed in the vertical rod assembly, a second inclined groove is formed in the wheel assembly, one end of the pull rod is located in the first inclined groove and can be arranged in a sliding mode along the first inclined groove, and the other end of the pull rod is located in the second inclined groove and can be arranged in a sliding mode along the second inclined groove. According to the cart, synchronous folding and unfolding operation of the cart frame and the wheel assemblies can be achieved, and folding and unfolding of the cart are quite convenient. And the structure for realizing synchronous folding and unfolding operation of the frame and the wheel assembly is simple, and the cart is convenient to produce and manufacture.

    本发明公开了一种推车,包括车架,车架包括底架组件、与底架组件通过沿左右方向延伸的第一轴心线转动连接的立杆组件、与底架组件通过沿前后方向延伸的第二轴心线转动连接的车轮组件、当立杆组件绕第一轴心线转动时驱使车轮组件绕第二轴心线转动的联动机构,联动机构包括沿左右方向滑动设在底架组件上的拉杆,立杆组件上设有第一斜槽,车轮组件上设有第二斜槽,拉杆的一端部位于第一斜槽中并能够沿第一斜槽滑动地设置,拉杆的另一端部位于第二斜槽中并能够沿第二斜槽滑动地设置。该推车可实现车架和车轮组件的同步折叠及展开操作,使得推车的折叠及展开均十分方便。而且实现车架和车轮组件同步折叠及展开操作的结构简单,便于推车的生产制造。


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    Title :

    Trolley


    Additional title:

    一种推车


    Contributors:
    LI FENG (author) / WU CHUANXIANG (author)

    Publication date :

    2023-03-07


    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 / A63B Geräte für Körperübungen, Turngeräte, Gymnastik, zum Schwimmen, Klettern oder Fechten , APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING



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