Automatic take-up device for power grid detection

The invention relates to the technical field of cable storage, and particularly relates to an automatic take-up device for power grid detection. The automatic take-up device is characterized by comprising a base, a power box, a reel and a reciprocating wiring mechanism, wherein the power box is arranged at one end of the top face of the base, and a free conical head capable of freely rotating anda driving conical head driven by a motor in the power box are horizontally arranged on the side, corresponding to the other end of the top face of the base, of the power box in parallel; two supporting columns corresponding to the free conical head and the driving conical head are arranged at the end, away from the power box, of the top face of the base; telescopic devices are arranged at the topsof the two supporting columns; the axes of the two telescopic devices correspondingly coincide with the axis of the corresponding free conical head and the axis of the corresponding driving conical head; and an ejector head c