Structure improvement of metal plate processing working vehicle

The utility model relates to the technical field of metal plate processing, in particular to a structure improvement of metal plate processing working vehicle, mainly comprising a supporting frame, a base, an oil hydraulic cylinder, a sliding base and a curb chain. Therein, the supporting frame is fixed on the base uprightly and the base is fixed on a working bench; a support rod is arranged slantwise between the supporting frame and the base. Both sides of the rod body of the supporting frame are respectively provided with a certain number of regulating holes which are matched with a pulley. The base is equipped with the oil hydraulic cylinder uprightly at a position adjacent to the supporting frame. The top end of an output rod of the oil hydraulic cylinder is sheathed with a pulley seat. The rear side of the rim of the supporting frame is equipped with trapezium transverse rod hooks; a transverse rod is arranged between two transverse rod hooks. The transverse rod is provided with a center hole and the curb chain passes through the center hole. The periphery of the center hole is fixed with a band shape cloth sheath which is sheathed outside the curb chain. The utility model is added with the cloth sheath structure of the transverse rod on the foundation of the curb chain, so when the curb chain is broken under enlarged tension, the cloth sheath can prevent the curb chain from being thrown out violently, in order to avoid safety accident.