Photovoltaic power transmission line deicing device

The invention relates to the technical field of cable engineering, in particular to a photovoltaic power transmission line deicing device. Comprising a shell, an ice melting piece, an ice knocking piece, a driving piece and a guide piece, the ice melting piece comprises an ice melting rod and two ice melting rings, the ice knocking piece comprises an ice knocking ring, a guide groove and an ice knocking rod, the guide groove comprises a force storage section and a force release section, and when the driving piece drives the two ice melting rings to rotate reversely, the guide piece drives the two ice melting rings to spirally advance along a power transmission line. The spiral advancing speeds of the ice melting ring and the ice knocking ring are adjusted according to the thickness of the ice layer, so that the advancing speeds of the ice melting ring and the ice knocking ring at the ice layer with the same thickness are the same, the ice melting rod melts spiral ice seams with opposite spiral directions when