Limiting mechanism of rail type inspection robot

The utility model discloses a limiting mechanism of a rail type inspection robot, which comprises a limiting frame arranged at the bottom of the robot, the limiting frame is formed by mutually connecting supporting baffles and a supporting bottom plate, the two ends of the top of the supporting bottom plate are provided with the supporting baffles, and the supporting baffles are arranged on the supporting bottom plate. A rotating assembly and a driving assembly are further arranged at the top of the supporting bottom plate, limiting wheel sets are arranged outside the rotating assembly and the driving assembly, the two ends of the supporting baffle extend upwards and are provided with limiting blocks, one end of each limiting block extends inwards and is provided with a limiting pipe, and a rail body is arranged at the bottom of each limiting block in a penetrating mode; the limiting pipe abuts against the limiting wheel set, and the effect of effectively preventing the position of the inspection robot from d