| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a method and a device for cleaning the inside of a pipeline by which the work to remove marine creatures or the like deposited on the internal surface of a water intake pipe is efficiently carried out by a robot device operated by remote control without depending on man power. SOLUTION: A towing wire 22, various power sources and signal cables are connected to a main frame 1, on which floating bodies 19, 20 for imparting flotage and a television camera 24 are mounted. A propeller 3 for driving forward and generating a water current is attached to the front side of the frame 1. The frame 1 has also an expansion/contraction mechanism that shoes 13, 15 provided respectively with scraper brushes 14, 16 to be pressed from the frame 1 against the whole periphery of the internal surface of a pipeline 25 to be cleaned are expanded or contracted toward the internal surface from the center of the pipeline 25.</p> |
