Windproof clip (also known as maintenance-free clip or porcelain bottle insulator wire fixing clip). Widely used in 10KV~35KV overhead lines for wire fixing. Because most of the traditional fixing methods adopt the wire winding fixing method, the wires are easily stretched due to strong wind, heavy rain, bad weather or temperature difference between winter and summer, and they are easy to fall off, resulting in disconnected grounding or single-phase grounding faults, and even personal safety accidents.