The invention relates to the technical field of cable erection, and particularly discloses an auxiliary device for high-altitude erection of a
power cable and a use method thereof.The auxiliary device comprises an erection mechanism arranged at the bottom of an unmanned aerial vehicle and used for being connected with a guide
rope, and the unmanned aerial vehicle drives the erection mechanism and the guide
rope to move so as to assist high-altitude erection of the cable; through cooperation of the clamping block
assembly and the clamping
assembly, connection or disconnection of the guide
rope and the unmanned aerial vehicle is conveniently controlled, so that the unmanned aerial vehicle conveniently drives the guide rope to move to a designated position to assist high-altitude cable erection, the guide rope is conveniently thrown down, the guide rope is conveniently separated from the unmanned aerial vehicle when the unmanned aerial vehicle encounters strong air flow, and the unmanned aerial vehicle is convenient to use. The stability of the unmanned aerial vehicle is conveniently kept, the influence on subsequent auxiliary cable erection is avoided, and the clamping block
assembly and the guide rope have downward elastic
potential energy during separation through the
extrusion assembly, the limiting shell and the like, so that the guide rope is conveniently and quickly separated from the unmanned aerial vehicle.