JPH0540385U - Human body local washer - Google Patents

Abstract

(57) [Summary] [Purpose] Regarding the piping structure for sequentially supplying water to the human body local part cleaning nozzle 31 and the nozzle cleaning hose 22, the number of solenoid valves 23 for switching the flow paths is set to one. A decompression chamber 24 and a venturi nozzle 25 are arranged upstream of a solenoid valve 23 connected to a nozzle cleaning hose 22, and a vent 26 of the venturi nozzle 25 is connected to the decompression chamber 24.
Toward the communication port 27 to the solenoid valve 23 inside the decompression chamber 24
Outlet 2 connected to the human body local cleaning nozzle 31 on the side of the
8 is provided to switch the flow path using Bernoulli's theorem.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an improvement of a human body local cleaning device provided in a toilet bowl.

[0002]

[Prior Art]

 In recent years, for example, a toilet bowl having a function for cleaning a human body local part called a washlet (trade name) has been developed, and this kind of toilet bowl is equipped with a human body local cleaner as shown in FIG. That is, a pipe 1 connected to a water supply means (not shown) such as a pump is branched into two pipes 2 and 3 on the downstream side of the water supply means, and an electromagnetic valve is provided in each of the pipes 2 and 3. 4, 5 are connected. The solenoid valves 4 and 5 are normally closed and open by energization. A nozzle cylinder 6 is connected to the downstream side of one solenoid valve 4, and a human body part cleaning nozzle 7 is slidably inserted into the nozzle cylinder 6. Reference numeral 8 is a return spring, and 9 is an ejection port. A nozzle cleaning hose 10 is connected to the downstream side of the other solenoid valve 5. The jet 11 of the nozzle cleaning hose 10 is directed to the vicinity of the jet 9 of the human body part cleaning nozzle 7 in the retracted position.

The washing machine operates as follows. That is, when the washing start switch is pressed, the pump is driven to supply water from the water supply means to the pipes 2 and 3, and at the same time, one electromagnetic valve 4 is energized and the electromagnetic valve 4 is opened. . When the solenoid valve 4 is opened, water is supplied to the nozzle cylinder 6, the human body part cleaning nozzle 7 is pushed out by water pressure and extends, and water is ejected from the ejection port 9 to clean the human body part. When the washing stop switch is pressed, the solenoid valve 4 on one side is de-energized and the solenoid valve 5 on the other side is energized. One solenoid valve 4 is closed by stopping the current flow, and the ejection of water from the ejection port 9 is stopped. The human body part cleaning nozzle 7 which has no water pressure is pushed back to the retracted position by the return spring 8. The other solenoid valve 5 is opened by energization, water is supplied to the nozzle cleaning hose 10, and water is ejected from the ejection port 11 to clean the vicinity of the ejection port 9 of the human body local cleaning nozzle 7. The supply of water and the energization of the other solenoid valve 5 are automatically stopped after a lapse of a predetermined time.

[0004]

[Problems to be solved by the device]

 The above-mentioned conventional technique has a problem that it is expensive and large and heavy because it requires two solenoid valves 4 and 5.

[0005]

[Means for Solving the Problems]

 In view of the above points, the present invention has been devised to solve the above-mentioned problems in the prior art, and in order to achieve this object, an electromagnetic valve is provided between the water supply means and the nozzle cleaning hose. A decompression chamber is arranged between the water supply means and the solenoid valve, a venturi nozzle is arranged between the water supply means and the decompression chamber, and a vent of the venturi nozzle is located inside the decompression chamber. Provided is a human body local cleaning device characterized in that a water outlet is provided on a side surface of the decompression chamber toward a communication port to the solenoid valve, and the water outlet is connected to a human body local cleaning nozzle.

[0006]

[Action]

 The washer of the present invention has only one solenoid valve. This solenoid valve is normally closed and opens when energized. The cleaner of the present invention operates as follows when the solenoid valve is energized and de-energized. That is, if the solenoid valve remains de-energized when water is supplied from the water supply means, the solenoid valve is closed and the flow path from the decompression chamber to the nozzle cleaning hose via the solenoid valve is closed. Therefore, the water that has flowed into the decompression chamber flows out from the outlet and reaches the human body part washing nozzle to wash the human body part. When the solenoid valve is energized, the solenoid valve opens and the flow path opens, so that the water reaches the nozzle cleaning hose and cleans the human body cleaning nozzle. Even when the power is turned on, the flow path from the decompression chamber to the human body cleaning nozzle is open, but the venturi nozzle's jet is directed to the communication port to the solenoid valve, and the water outlet is provided on the side of the decompression chamber. Therefore, almost no water flows to the outlet due to Bernoulli's theorem.

[0007]

Embodiments Next, embodiments of the present invention will be described with reference to the drawings.

As shown in FIGS. 1 and 2, a solenoid valve 23 is arranged between a pipe 21 connected to a water supply means (not shown) such as a pump and a nozzle cleaning hose 22. A decompression chamber 24 is disposed between the solenoid valve 23 and the solenoid valve 23. A venturi nozzle 25 is arranged between the pipe 21 and the decompression chamber 24, and an ejection port 26 of the venturi nozzle 25 is directed straight to a communication port 27 to a solenoid valve 23 inside the decompression chamber. A water outlet 28 is provided on the side surface of the decompression chamber 24, and the water outlet 28 is connected to a nozzle cylinder 30 via a pipe 29. A human body local cleaning nozzle 31 is slidably inserted into the nozzle cylinder 30. Reference numeral 32 is a return spring, and 33 is an ejection port. The spout 34 of the nozzle cleaning hose 22 is directed to the vicinity of the spout 33 of the human body part cleaning nozzle 31 in the retracted position.

The washing machine operates as follows. That is, when the washing start switch is pressed, water is supplied from the water supply means to the pipe 21, but the solenoid valve 23 remains de-energized, the solenoid valve 23 is closed, and the decompression chamber 24 moves from the solenoid valve. Since the flow path leading to the nozzle cleaning hose 22 via 23 is closed, the water that has flowed into the decompression chamber 24 flows out from the outlet 28 and is supplied to the nozzle cylinder 30, and the human body local cleaning nozzle 31 is pressurized with water. The water is ejected from the ejection port 33 to clean the human body part. When the washing stop switch is pushed, the solenoid valve 23 is energized while the water is still supplied, and the solenoid valve 23 is opened to open the flow path, so that the water reaches the nozzle cleaning hose 22 and the jet hole is opened. Eject from 34. Even when the power is turned on, the flow path from the decompression chamber 24 to the human body part cleaning nozzle 31 is open, but the ejection port 26 of the venturi nozzle 25 is directed to the communication port 27 to the solenoid valve 23, and the water outlet 28 is decompressed. Since it is provided on the side surface of the chamber 24, water hardly flows to the outlet 28 according to Bernoulli's theorem. Therefore, water pressure is not applied to the human body part cleaning nozzle 31, the human body part cleaning nozzle 31 is pushed back to the retracted position by the return spring 32, and the human body part cleaning nozzle 31 returned to the retracted position is ejected from the nozzle cleaning hose 22. Clean with water. The supply of water and the energization of the solenoid valve 23 are automatically stopped after a lapse of a predetermined time.

The above-mentioned washing machine exhibits the same flow path switching function as in the prior art while using only one solenoid valve 23, and is compact in size and advantageous in terms of cost.

[0011]

[Effect of the device]

 The present invention has the following effects. In other words, the number of installed solenoid valves is one, and the same flow path switching function as in the prior art is exhibited, which is advantageous in terms of compact weighing and cost.

[Brief description of drawings]

FIG. 1 is a sectional view of a human body local cleaning device according to an embodiment of the present invention.

FIG. 2 is an enlarged cross-sectional view of a main part of the human body local cleaning device.

FIG. 3 is a sectional view of a human body local washer according to a conventional example.

[Explanation of symbols]

 21, 29 Piping 22 Nozzle cleaning hose 23 Solenoid valve 24 Decompression chamber 25 Venturi nozzle 26, 33, 34 Jet outlet 27 Communication port 28 Water outlet 30 Nozzle cylinder 31 Human body part cleaning nozzle 32 Return spring

Claims (1)

[Scope of utility model registration request] 1. A solenoid valve 23 is arranged between the water supply means and the nozzle cleaning hose 22, and a decompression chamber 24 is arranged between the water supply means and the solenoid valve 23. A venturi nozzle 25 is arranged between the chambers 24, and an ejection port 26 of the venturi nozzle 25 is directed inside the decompression chamber 24 toward a communication port 27 to the solenoid valve 23, and a water outlet 28 is provided on a side surface of the decompression chamber 24. And a water outlet 28 is connected to the human body part cleaning nozzle 31.