| 摘要 |
PURPOSE: To obtain a device for propelling a nozzle head into a water feed/drain pipe without force for inserting the nozzle head being required to be fitted between the nozzle head and a hose in order to remove foreign matters with which a feed/drain pipe of a building is clogged by high pressure water washing. CONSTITUTION: Wheels with a groove 4, 4 are provided on holding plates 2, 2 of a hollow steel pipe 1. High pressure waters 5, 5 are sprayed through water holes 6, 6 to rotate the wheels with a groove 4, 4 by the high pressure waters 5, 5, allowing the nozzle head 8 to be propelled. |
