Steel bar corrosion detector for engineering detection

The utility model relates to a steel bar corrosion detector for engineering detection, and belongs to the technical field of engineering detection. The device mainly comprises a main machine and two groups of electrodes connected to the main machine through signal lines, the two groups of electrodes are connected through a connecting rod, the device is characterized by further comprising an adjusting mechanism, a sliding mechanism, a lifting mechanism, an abutting rod and a negative pressure suction cup, the middle of the connecting rod is detachably installed on the adjusting mechanism, the adjusting mechanism is installed on the sliding mechanism, and the sliding mechanism is installed on the lifting mechanism; the abutting rods are vertically installed at the upper and lower ends of the lifting mechanism, and negative pressure suckers are installed at the ends, away from the sliding mechanism, of the abutting rods. When the negative pressure suction cup at the end of the abutting rod and the electrode abut