| 摘要 |
PROBLEM TO BE SOLVED: To efficiently clean the inner peripheral surface of a pipe line by attaching a nozzle having jetting hole for unbalanced thrust to a nozzle holding body provided at an inserting end part of a cleaning hose, simultaneously attaching a balancing body and moving a cleaning device right and left in the inner wall surface of the pipe line with the under part as the main. SOLUTION: The cleaning device X1 is inserted in the pipe line, a cleaning water W is passed through an orifice passage 20 to flow in a space part for fluid 36 of the nozzle holding body main body 17 to press the nozzle 30 in the projecting direction. And the direction of a projecting part 33 of the nozzle 30 is fixed by jetting the cleaning water from the jetting hole 35 for unbalanced thrust of the nozzle 30, the nozzle 30 is self-advanced by the reaction of the jetting the cleaning water jetted from jetting hole 21 for self-advancing, is slidden in the anti-clock wise direction while being guided by the projecting part 33 and when the projecting part 33 of the nozzle 30 is in contact with the left side contact part of the balancing body 24, the nozzle 30 is turned. Thus the cleaning device X1 cleans the inner wall surface of the pipe line with the under part filled with water as the main while being guided by the projecting part 33. |
