JPH02197631A - Water jetting method for flush toilet - Google Patents

Abstract

PURPOSE:To form intermittent flow at a low cost and without generating noise by setting the one side jet port of a fluid element for switching flow in two directions, to be a cleaning water jetting nozzle port. CONSTITUTION:When the flow of cleaning water is jetted from a main jet channel 9, then the flow runs to be attached to either one side of the side walls of a suddenly enlarged flow channel 10, and is jetted from a jet port 10a or 10b on the side of the side wall. By interference action with the flow and the attached side wall, the attached eddy of low pressure is generated. Then, to the attached flow side, a control flow channel 12 is led, and to an unattached side, the flow is induced, and the pressure of an attached eddy section is heightened, and when it is turned into fixed or higher pressure, then the flow is attached to the side wall on the counter side and is jetted from the jet port 10a or 10b on the counter side. Besides, the one side of the flow switched alternately is jetted as cleaning water to open air, and the other side flow is returned to the suction section of a water feeding pump and a storage water tank.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a water injection method for a flushing toilet for flushing private parts.

[Conventional technology]

Conventionally, when injecting water intermittently, water was injected intermittently by continuously opening and closing a piping passage with a valve, as described in, for example, Japanese Patent Laid-Open No. 59-179943.

[Problem to be solved by the invention]

Conventional methods of creating intermittent flow use valves (e.g., motor-driven rotary valves, solenoid valves, etc.) that automatically open and close the water flow passage, which is expensive, and these valves also generate noise (vibration). The purpose of the present invention is to provide a method for creating intermittent flow suitable for local cleaning at low cost and without producing noise, without using expensive rotary valves or the like. .

[Means to solve the problem]

In order to achieve this purpose, the present invention uses a fluid element as an injection nozzle that has the function of alternately switching the flow in two directions. The other stream is flowed as it is into the toilet bowl or returned to the suction part of the water pump, water storage tank, etc. to obtain an intermittent jet stream of flushing water.

Although the fluid element used as the injection nozzle in the present invention is of any type, for example, a swelling fluid element attached to a side wall is used. As shown in FIG. 2, a rapidly expanding channel 10 is provided at the outlet of a rectangular nozzle called a main jet channel 9, and a splitter 11 is placed on the axis of the main jet channel 9 in the rapidly expanding channel 10. , something is provided which divides the output path of the flow to be switched into two jets 10a and 10b.

In addition, each jet port 10 of the rapidly expanding flow path 10 immediately after the main jet flow path 9
A control flow path port 12a and a control flow path 12 connected thereto are connected to the side wall portions a and 10b.

When a stream of cleaning water is ejected from the main jet flow path 9, the flow adheres to one of the side walls of the rapidly expanding flow path 10 due to the Coander effect, and is ejected from the jet port 10 on the side wall side. At this time, a low-pressure attached vortex is generated due to interference between the flow and the attached side wall. The control flow path 11
When these are connected to each other by piping 13, the flow passes through the control flow path 12 to the side where it is attached, and the flow is induced to the side where it is not attached, and the pressure of the generated attached vortex increases, and the pressure exceeds a certain level. When this occurs, the flow becomes unstable, the flow adheres to the opposite side wall, and is ejected from the opposite side wall. After this, this continues and the flow oscillates.

That is, the flow is alternately switched in two directions.

By jetting one of these alternately switched flows into the atmosphere as cleaning water and returning the other to the suction part of the water pump 7 or the water storage tank, intermittent cleaning water can be obtained.

〔Example〕

An embodiment of the present invention will be described with reference to the drawings. As shown in FIGS. 1 and 2, in the present invention, a layered fluid element 8 with a side wall is used as an injection nozzle, and the discharge port of the water pump 7 and the water supply port 9a of the main jet flow path 9 of the element 8 are connected. Connect by piping. Further, a branch part 6 is provided on the upstream side of the water pump 7, and this branch part 6 and one of the jet ports 10a of the fluid element 8 are connected to each other.
Connect the piping. Furthermore, a throttle section 4 is provided by arranging a throttle or the like on the upstream side of the branch section 6, so that the pump inlet pressure is maintained at approximately atmospheric pressure. This is because, in order to maintain the flow switching effect of the fluid element 8, the outlet pressures of the re-jet ports 10a and 1Ob need to be approximately equal. This is because if either outlet pressure becomes lower than the other, the flow will be stabilized in the lower one and no switching action will take place.

A hot water temperature adjusting section 5 equipped with a heater and the like is disposed upstream of the branching section 6, and adjusts the temperature of flowing water by heating, etc.

〔Effect of the invention〕

The method of spraying flush water for a flushing toilet for flushing private parts according to the present invention is configured as described above, and therefore produces the effects described below.

(1) It is inexpensive because it uses fluid elements to obtain intermittent jet flow without using expensive rotary valves or solenoid valves.

(2) Since there are no moving parts, there is no need to worry about noise such as vibration.

[Brief explanation of the drawing]

FIG. 1 is a schematic diagram showing an embodiment of the present invention, and FIG. 2 is a schematic diagram showing an embodiment of the present invention.
FIG. 2 is a cross-sectional view of a layered fluid element with side walls used as a jet nozzle. DESCRIPTION OF SYMBOLS 1... Water storage tank, 2... Water supply port, 3... Piping flow path, 4... Throttle part, 5... Temperature adjustment part, 6... Branch part, 7... Water pump , 8... Layered fluid element with side wall, 9... Main jet channel, 9a... Water supply port of main jet channel,
10... Rapidly expanding channel, 10a, 10b... Spout port,
11... Splitter 12... Control flow path, 12a...
- Control channel port, 13...piping.

Claims (1)

[Claims] (1) A water jetting method for a flushing toilet, characterized in that one jetting port of a fluid element that switches the flow in two directions is configured as a nozzle port for jetting cleansing water.