Silicone rubber buckled insulating bushings are mainly used in overhead railway systems when crossing tunnels, bridges and tropical rainforests. The utility model is used for improving the insulation performance of the antenna, preventing the occurrence of a short circuit, and effectively strengthening the insulation protection of the exposed wire of the antenna. It is mainly used in 15 kv and 35 kv power system of overhead cross-insulation protection. It is mainly used to strengthen the insulation protection of antennas by exposing wires through forests, buildings, tunnels, rivers, and so on. It can also be applied to an antenna on the part of the insulator exposed railway system, used to improve its insulation performance.