Automatic supporting equipment for semitrailer maintenance and supporting method thereof

The invention relates to the technical field of automatic supporting equipment, and discloses automatic supporting equipment for semitrailer maintenance and a supporting method.The automatic supporting equipment comprises an automatic supporting top column, stable fixing plates are symmetrically and fixedly installed on the portion, close to one side, of the front face of the automatic supporting top column, and small connecting holes are formed in the portions, close to the top, of one sides of the stable fixing plates; a second pressure-resistant telescopic column is fixedly installed at the bottom, close to the center, of the automatic supporting top column, a pressure-resistant supporting base is fixedly installed at the bottom of the second pressure-resistant telescopic column, a triangular fixing block is fixedly installed on the front face, close to the bottom, of the pressure-resistant supporting base, and a stable fixing column is fixedly installed on the front face, close to the center, of the trian