| 摘要 |
PROBLEM TO BE SOLVED: To provide a device for cleaning the inside of a pipe with good cleaning efficiency and cleaning work efficiency in the device for injecting a pressure fluid to clean the inside of a pipe, etc. SOLUTION: A hose for supplying a pressure fluid is connected to a shaft 2, a rotor 1 is freely rotatably fixed to almost the central part of the shaft through a thrust bearing 8, an axial hollow hole 18 and a radial through-hole 19 are bored in the rotor 1, a space 20 is provided at the part of the through- hole 19 between the rotor 1 and shaft 2, a nozzle tip 5 is fixed to the rotor 1, a communicating hole 21 is bored in the rotor 1, the pressure fluid is ejected from the nozzle 5, a nozzle 5 mounting part is rotated, and the device is moved. A rotation control part 3A is fixed to the rotor 1 and rotated along with the rotor 1. A rotation control part 3B is opposed to a rotation control part 3A with a clearance in-between and fixed in a cover without being rotated. |
