High-altitude extension type working platform

The utility model discloses a high altitude extension type work platform, including adjusting support rod, lifting rod, work platform, fixed base and reinforcing plate, the fixed base is movably installed at the four corners of reinforcing plate through adjusting bearing, the other end of fixed base is welded with the cylindrical sleeve, the cylindrical sleeve is equipped with the adjusting support rod through screw thread, and the adjusting support rod is equipped with the lifting rod through screw thread. Adjusting supporting rods are welded to the four corners of the top end of the reinforcing plate correspondingly, a displacement structure is installed on one side of the cylindrical sleeve, a sliding rack is installed on the surface, close to the lifting rod, of the displacement structure, a rotating fluted disc is installed on the sliding rack in a meshed mode, and a rotating rod penetrating through the adjusting supporting rods is installed on the rotating fluted disc. Adjusting rotating shafts are inst