| 摘要 |
PURPOSE:To easily and certainly perform the inspection of a small diameter pipe interior, by providing the camera or TV camera of a photographing apparatus to the leading end of an extensible tube, and photographing the pipe interior while sending compressed air to move the extensible tube. CONSTITUTION:An illumination instrument, the camera 2 or TV camera 2 of a photographing apparatus and a compressed air supplying air hose 3 are provided to the leading end of an extensible tube 1. By sending compressed air into the air hose 3, the extensible tube 1 wound around a wind-up drum 4 passes between an idler roller 6 and a movable roller 8 to be moved in a pipe to photograph the pipe interior through a motor driven cable 21. The pressure of compressed air supplied to the air hose 3 from a compressor 17 is properly regulated by a pressure regulating valve 9 and a pressure gauge 20. By this method, the inspection of the interior of the small diameter pipe is easily and certainly performed. |
