Slide rail type mounting tray for high-altitude operation

The utility model relates to the technical field of traffic engineering, in particular to an overhead working sliding rail type installation tray which comprises a fixing frame, supporting columns are installed at the four corners of the outer wall of the top of the fixing frame, and the same top plate is installed at the tops of the outer walls of the opposite sides of the two supporting columns on one side. The first supporting frame is welded to the outer wall of the top of one top plate; the two first supporting frames are welded to the two ends of the outer wall of the top of one top plate, the two second supporting frames are welded to the two ends of the outer wall of the top of the other top plate, limiting guide rails are installed on the outer walls of the bottoms of the first supporting frames and the outer walls of the bottoms of the second supporting frames, and fixing clamping bases are connected to the outer walls of the limiting guide rails in a sliding mode. The limiting guide rails on the fi