High-strength draw-bar box chassis device

The utility model discloses the field of draw-bar boxes, and particularly relates to a high-strength draw-bar box chassis device which comprises a back plate, a bottom plate and a transportation structure, the back plate is installed on the rear end face of the bottom plate, supporting plates are symmetrically installed on the left side and the right side of the bottom plate front and back, and filling blocks are installed on the lower end face of the bottom plate. A transportation structure capable of improving the shock resistance of the bottom plate is arranged below the supporting plate, the bottom plate is of a trapezoidal frame structure with side wings installed on the left side and the right side and without an upper cover plate, the back plate is of a cuboid structure, the back plate is fixedly connected with the bottom plate, threaded holes are formed in the back plate, and the supporting plate is of a cuboid structure with an arc-shaped column. Threaded holes are formed in the upper end face of the