The application provides a modular
stair climbing protection device for a four-legged inspection
robot, which comprises a four-
legged robot, a connecting frame and an anti-falling structure; a
rope reel in the anti-falling structure is rotatably installed on the connecting frame, the
rope reel is internally provided with a pull
rope, the other end of the pull rope is detachably connected with the four-
legged robot body through a bottom plate; a driving cylinder three is fixedly arranged on the connecting frame, a sliding frame in sliding connection with the connecting frame is arranged on the
piston rod of the driving cylinder three, and a clamping plate is elastically rotatably connected with the sliding frame through a torsional spring. Through the cooperation of the moving structure, the lifting structure, the connecting frame and the anti-falling structure, the four-
legged robot is prevented from losing balance and rolling over when climbing the
stairs in the cable gallery, a constraint tension is rapidly applied when the
robot falls, the
robot is prevented from falling down the
stairs, the robot body and the carried inspection device are prevented from being damaged, the inspection task is ensured not to be interrupted, the burden of manual operation and maintenance is further reduced, and the
overall efficiency of inspection is improved.