I-shaped aluminum alloy anti-falling device and using method thereof

The invention discloses an I-shaped aluminum alloy anti-falling device, and belongs to the technical field of high-altitude operation devices. The device comprises an I-shaped aluminum alloy frame, a traction assembly, a lifting frame, a reinforcing assembly, two reinforcing plates, two racks, two sliding rails and two locking anti-falling assemblies; the two reinforcing plates and the two sliding rails are symmetrically arranged in the I-shaped aluminum alloy frame; the two racks are arranged on the inner walls of the two reinforcing plates correspondingly; the lifting frame can be installed on the two sliding rails in a sliding mode; the traction assembly is installed on the top of the I-shaped aluminum alloy frame; the bottom end of the traction assembly is fixedly connected with the fixed top end of the lifting frame; the two locking anti-falling assemblies are symmetrically arranged on the outer walls of the two sides of the lifting frame; and the reinforcing assembly is arranged at the bottom of the lif