INTRA-PIPE SELF-PROPELLED DEVICE AND PIPE INSPECTION DEVICE

摘要

PROBLEM TO BE SOLVED: To provide an intra-pipe self-propelled device and a pipe inspection device capable of stably powering self-movement within a pipe and excellent in drawing-out performance from the pipe.SOLUTION: A self-propelled connected body 11 is configured so that a plurality of propulsion bodies 21 and a plurality of flexible connection bodies 22 are alternately connected. At least one of the propulsion bodies 21 is provided to be able to vibrate. Each propulsion body 21 includes a contact propulsion portion 21a and a tapered portion 21b. The contact propulsion portion 21a includes a plurality of wire rods 21c provided on side surfaces of the contact propulsion portion 21a so that tip ends of the wire rods 21 are inclined toward a rear end 11b of the self-propelled connected body 11. With this configuration, the propulsion bodies 21 exhibit friction anisotropy that the propulsion bodies 21 are slippy toward a tip end 11a of the self-propelled connected body 11 and less slippy toward the rear end 11b of the self-propelled connected body 11 at a time of contact with an inner wall of a pipe, and provide a propulsion force in a direction of the tip end 11a of the self-propelled connected body 11a at a time of the vibration of the propulsion body 21 provided to be able to vibrate.