Insulation protection device

The invention discloses an insulation protection device, and relates to the technical field of safety tools in the power industry. The insulation protection device comprises an insulation shell and an operation wheel, the insulation shell is provided with an opening and a threading groove which are communicated, the upper end and the lower end of the threading groove are communicated, and a wire can be inserted into the threading groove; at least part of the operation wheel protrudes out of the opening, the operation wheel is movably arranged in the threading groove and can move back and forth in the length direction of the threading groove, and the operation wheel can abut against the outer wall of the wire to fix the wire. The insulation protection device does not need to use an insulating tape when the wire is disassembled and assembled, so that the insulation level is improved, the electric shock risk is reduced, the personal and equipment safety can be effectively guaranteed, and the working efficiency i