The invention discloses a four-wheel folding trolley which comprises a carrying support used for bearing objects, and a pushing handle which is connected through a hinged support and can be folded onthe carrying support; the carrying support comprises two parallel cylinder rods; each cylinder rod is sleeved with a trundle used for supporting the carrying support, the tail end of each cylinder rodis connected with the hinged support through a fulcrum, a transmission pipe is arranged in each cylinder rod, the trundle is fixedly connected with a rotating sleeve piece capable of being arranged on the cylinder rod in a sleeving mode, a spiral hollow rail is arranged on the inner wall of the rotating sleeve piece, and a first lock pin clamped and embedded in the hollow rail is arranged on thetransmission pipe; the two sides of the hinged support are provided with arc-shaped sliding grooves, and the end of the transmission pipe is provided with pin columns which are clamped in the arc-shaped sliding grooves and can slide in the sliding grooves; the pushing handle is foldable. A plurality of positioning devices are arranged in the four-wheel folding trolley, after the four-wheel foldingtrolley is unfolded, all parts of the four-wheel folding trolley are connected stably and reliably, and forward, backward, leftward and rightward shaking is avoided. And the four-wheel folding trolley with the folded trundles and pushing handle is small in size and convenient to carry.

    本发明公开了四轮折叠手推车,包括用于承载物件的载物支架及通过铰座连接并可折合于载物支架上的推手,载物支架包括二条平行的筒杆,筒杆上套设有用于支承支架的脚轮,筒杆的末端通过支点与铰座连接,所述筒杆内设有传动管,脚轮上固定连接有可套合于筒杆上的旋转套件,旋转套件内壁设有螺旋形中空轨道,传动管上设有卡嵌在中空轨道内的第一锁销;所述铰座的两侧设有弯弧形滑槽,传动管端部设有卡在该弯弧形滑槽内并可在该滑槽内滑动的销柱;推手在折叠时。本发明行中李车内设置了多重的定位装置,在行李车打开后,它的各个部分之间连接稳固可靠,不会产生前后、左右的摇晃。而且折合脚轮和推手后的行李车体积小,携带方便。


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    Title :

    Four-wheel folding trolley


    Additional title:

    四轮折叠手推车


    Contributors:

    Publication date :

    2020-04-21


    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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