Structure for rapidly switching use state of trolley

The utility model discloses a structure for quickly switching the use state of a handcart, which comprises a chassis, a universal wheel assembly and a pull rod assembly, the rear end of the chassis is provided with two pull rod insertion holes which are through up and down, and the symmetrical side surfaces of the chassis are respectively provided with a transverse locking screw hole communicated with the pull rod insertion holes; a strip-shaped locking groove is formed in the outer wall of the bottom of the pull rod assembly, the bottom of the pull rod assembly is inserted into the pull rod insertion hole and locked through a screw in the transverse locking screw hole, the inner side end of the screw extends into the strip-shaped locking groove, and the pull rod assembly rotates with the screw as a fulcrum to achieve rapid switching between oblique pulling and straight pulling of the pull rod assembly. The pull rod assembly is reasonable in structural arrangement, the pull rod assembly is matched with the pu