IN-DUCT INSPECTION DEVICE

摘要

PURPOSE:To surely and accurately inspect the inside of a duct where a power cable is laid, without narrowing the view of a camera or dropping the illuminance of a lamp by the mud adhering to the surface, when inspecting the power cable after laying. CONSTITUTION:Air nozzles 22, 23, and 24 for blowing compressed air against the surfaces of a protective glass for a camera 10 and protective glass 26 for a lamp 11 are provided at the front face of the body 21 of an image pick-up part. This compressed air is supplied from a compressor so as to drive a traveling member for sliding the image pickup part 20.