| 摘要 |
PROBLEM TO BE SOLVED: To make it possible to develop nozzle bodies and to inject high- pressure fluid from near the inside wall surface of a pipe at the time of shell removal work by providing the device with the nozzle bodies and guide bodies which are developed or folded by the force of the high-pressure fluid and springs and wheels in contact with the inside wall of the pipe. SOLUTION: When the high-pressure fluid is introduced into a cylinder via the hose 9-1, pistons 34 extrude output shafts 32 by overcoming the energizing force of the springs 33 and turn rods 31 to bring, the wheels 30 of the guide bodies 8 into contact with the inside wall of the pipe 2. The nozzle bodies 7 are similarly turned as well. When the shell removal of the inside wall of the pipe 2 is needed, the nozzle bodies 7 and the guide bodies 8 are placed along the main body 6 and the pipe cleaning device is passed into the flowing water from an opening while a cable and the high-pressure hose are held attached to the device. When the device descends down to the desired position, the high-pressure fluid is supplied to develop the nozzle bodies 7 and the guide bodies 8, thus bringing the wheels 30 into contact with the inside wall of the pipe 30. The high-pressure fluid is spouted from the nozzles 24 and is blown to the inside wall of the pipe 2. |
