Lightning protection grounding device for high-voltage direct-current power transmission system

The utility model relates to the technical field of power transmission systems, in particular to a lightning protection grounding device for a high-voltage direct-current power transmission system, which is convenient to disassemble and assemble a lightning rod by arranging the lightning protection grounding device, so that the lightning rod is convenient to replace; comprising a bottom plate, a mounting base, an insulating skin, a lightning rod, a conductive wire, a first fixing piece, a first bolt and a dismounting device, the top end of the bottom plate is connected with the bottom end of the mounting base, the dismounting device is arranged on the mounting base, the lightning rod can be mounted on the mounting base through the dismounting device, and the insulating skin wraps the conductive wire. One end of the conductor wire penetrates through the mounting base and is connected with the output end of the lightning rod, the first fixing piece is mounted at the other end of the conductor wire, the first bo