Steel truss integral lifting and supporting device

The invention discloses an integral lifting and supporting device for a steel net rack, which belongs to the technical field of building engineering construction and comprises a bearing plate, supporting columns are arranged above the bearing plate, sliding rails are arranged above the supporting columns, a sliding table is arranged above the sliding rails, and a steel column top plate is arranged below the bearing plate. A fixing assembly is arranged at the connecting position of the sliding rail and the sliding table, a connecting assembly is arranged at the connecting position of the bearing plate and the steel column top plate, the fixing assembly is arranged, the sliding table and the sliding rail can be conveniently fixed, the structure is convenient to use, external tools are not needed, the use convenience is improved, and the limiting assembly is arranged, so that the use is convenient. The connecting assembly is arranged, so that the bearing plate and the steel column top plate can be conveniently a