Electric power tunnel inspection robot

The utility model provides an electric power tunnel inspection robot which is arranged on an I-shaped rail and comprises a walking unit and a detection unit which are arranged on a robot body. The walking unit is used for driving the inspection robot to move on the I-shaped track; the detection unit comprises a mounting plate, a guide wheel shaft and a guide wheel; a guide wheel frame is arrangedat the top of the mounting plate; the guide wheel frame extends outwards to form two clamping plates for clamping the guide wheel; a third rotating shaft hole for mounting a guide wheel shaft is formed in a position, close to the end part, of the clamping plate; the guide wheel is rotationally connected with the guide wheel frame through a guide wheel shaft; an elastic sheet frame is further arranged at the top of the mounting plate; an elastic sheet is arranged on the elastic sheet frame; a restorer angle sensor is further arranged at the joint of the bottom of the mounting plate and the guide wheel frame. The electr