Steel bar corrosion detector

The utility model discloses a steel bar corrosion detector, relates to the detector field, including main part, one side of said main part is fixed with the limit frame, the inside of limit frame is provided with two sets of electromagnetic guide rail that extend to the limit frame inner side, the outer wall of two sets of electromagnetic guide rail is sleeved with two sets of slider, two sets of slider is fixed with the detection head between the two sets of slider. Through mutual cooperation of the limiting frame, the electromagnetic guide rail and the sliding block, the steel bar in the high-rise wall body is detected, manual climbing is not needed for measurement, meanwhile, manual data recording is facilitated, the working efficiency of manual detection is improved, and the labor intensity of workers is reduced. Through mutual cooperation of the clockwork spring frame, the base column, the electric wire and the conductive disc, the electric wire can be conveniently wound after the base column is reversed