The invention relates to the technical field of constructional
engineering, and particularly discloses a net overhanging device, a mounting method of the net overhanging device, a net overhanging
system and a mounting method of the net overhanging
system. The net overhanging device is mounted on an outer wall and comprises a first overhanging net and a second overhanging net. One end of the first overhanging net is rotationally connected with the outer wall; and one end of the second overhanging net is connected with the end, away from the outer wall, of the first overhanging net, a first
rope is connected to the other end of the second overhanging net, the first
rope enables the second overhanging net to be connected with the outer wall, and the second overhanging net is inclined upwards away from the outer wall. The first overhanging net and the second overhanging net are arranged in a split mode, so that the protection effect is improved, and the disassembly and
assembly difficulty is reduced; and the first overhanging net is rotationally connected with the outer wall, so that high-altitude operation of an operator is avoided, the safety of disassembly and
assembly operation is guaranteed, and the efficiency is improved. According to the net overhanging
system, the density of the net overhanging devices can be reduced through a third wire net, the cost needed by the system is further reduced while the purpose is achieved, and the construction efficiency is improved.