Self-loading and unloading device suitable for heavy truck container

A self-loading and unloading device suitable for heavy truck containers relates to the technical field of heavy truck containers, solves the problem that medium-distance and long-distance heavy truck containers are not easy to carry, and comprises a base, a supporting air cylinder is arranged at one end of the base, and the other end of the base is rotatably connected with a connecting arm. The telescopic end of the supporting air cylinder is connected with one side of a connecting arm, the upper portion of the connecting arm is rotationally connected with a bottom supporting arm, the lower portion of the bottom supporting arm is provided with a stable air cylinder, one side of the connecting arm is rotationally connected with a connecting block, the connecting block is provided with a horizontal air cylinder, and the telescopic end of the horizontal air cylinder is connected with the upper portion of the connecting arm. A lifting hook supporting arm is rotationally connected to the other side of the connecti