Three-span line intelligent spatial distance calculation device

The utility model belongs to the technical field of power line patrol. The three-span line intelligent spatial distance calculation device comprises a three-span line, the unmanned aerial vehicle comprises an unmanned aerial vehicle body, an unmanned aerial vehicle support and binocular ranging assemblies. The unmanned aerial vehicle support comprises a main support, an auxiliary support and a connecting rotating base. The main support and the auxiliary support are hinged through the connecting rotating base, the binocular distance measuring assembly comprises a holder, distance measuring cameras and a lifting pipe, the two distance measuring cameras are connected to the bottom of the holder in a liftable mode through the lifting pipe, and the holder is located at the bottom of the unmanned aerial vehicle body; according to the utility model, the foldable unmanned aerial vehicle bracket is adopted; the main support and the auxiliary support are folded in a hinged mode, meanwhile, the distance measuring camera