The invention provides a fixing device of a trolley. The fixing device comprises an upper supporting mechanism, a lower supporting mechanism and a fixing mechanism. The upper supporting mechanism comprises an upper sleeve and an upper supporting plate fixedly connected with the upper sleeve. The lower supporting mechanism comprises a lower sleeve and a lower supporting seat fixedly connected with the lower sleeve. A fixing support is rotatably connected with the lower sleeve through a first rotary shaft, a reset support is rotatably connected with the upper sleeve through a second rotary shaft, the fixing support is rotatably connected with the reset support through a third rotary shaft, and the two ends of a reset piece are connected with the first rotary shaft and the second rotary shaft respectively. When the trolley is parked, the included angle between the plane where the central axis of the second rotary shaft and the central axis of the third rotary shaft are located and the plane perpendicular to the ground is smaller than that between the plane where the central axis of the second rotary shaft and the central axis of the third rotary shaft are located and the plane perpendicular to the ground during the non-parked state of the trolley. The structure is adopted in the fixing device of the trolley, the trolley can be supported through height changes so as to achieve the aim of fixing the position of the trolley, the fixing device of the trolley is not prone to deform or fail, and a heavy trolley can be borne.


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    Title :

    Fixing device of trolley


    Contributors:
    GUI FANGLIANG (author) / XU HAO (author) / TANG MIN (author)

    Publication date :

    2015-12-16


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    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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