Fast poor shutting backup protection equipment

The utility model discloses a change insulator prevents the fast poor shutting backup protection equipment that the wire dropped, relate to electric wire netting maintenance tool field, the protectionrope who adopts the fixed length to prior art has aggravated operating personnel's work burden, because the inconvenient regulation of protection rope leads to the wire tenesmus easily and strikes the technical problem who causes the potential safety hazard, adopt including last couple, go up and hang the rope, a housing, the ratchet, the reel, a pawl, lower string of rope and lower couple, it adopts stainless steel to make with geting in touch down to go up the couple, the reel both sides are provided with left ratchet and right ratchet respectively, left side ratchet and right ratchet are formed a complete set respectively and are provided with corresponding pawl, the casing adopts the 3D printer to print and forms, lower string of rope adopts the technical scheme of di nima high -strength polyethylene cordage,