| 摘要 |
PURPOSE:To provide a labor saving and a complete working operation by a method wherein an extremity end of a cylindrical nozzle is pushed against an inlet port of a fine tube, a main body is slid through an outer cylinder and pushed into against a spring force, resulting in that each of the water passing ports is communicated to each other to inject the pressurized water so as to detect a resilient removal of the brush. CONSTITUTION:Pressurized water is supplied to the main body 4 and at the same time a brush item is pushed into a fine tube, an operating knob 3 is held with a hand, a tip 18 at the extremity end of the cylindrical nozzle 9 is pushed against an inlet opening edge of fine tube P, the main body 4 is pushed into the assembly, the pressurized water fed from the water supplying hose is guided into the nozzle 9 at a stage where the water passing port 15 of the cylindrical nozzle 9 is coincided with the water passing port 7 of the outer cylinder 6 so as to cause the water to be injected from the injection port 32. With this arrangement, the brush unit is pushed into the fine tube and finally the brush is removed from the long fine tube outlet and cleaned. When the pressurized water is injected from the injection port 32, a pipe inside pressure in a closed chamber is increased and the valve is pushed up through a bypassing passage and a communication passage, a sensing rod is pushed up and when the brush unit is removed, it is pushed down by a spring force and then it can be sensed. |
