JPH02178436A - Flow control device for sanitary washing device - Google Patents

Abstract

PURPOSE:To supply a stabilized volume of water to a washing nozzle by connecting a constant flow valve, a water-stop valve and a water channel branch part to a feed water inlet in sequence, and providing a means for changing a distribution ratio with which the flow is distributed to a main water channel side and a sub-water channel side. CONSTITUTION:When a washing switch turns on, water flows through a constant flow valve 2, a water stop valve 3 into a water channel branch part 4, and is distributed to a main water channel A side and a sub-water channel B side. On the main water channel A side, water flows through a throttle hole 5c into a hot-water tank and becomes warm water in it, and then spouts out from a privy part washing nozzle 8. On the sub-water channel B side, the water flows through a throttle hole 5d, and discharged into a close-stool 10. Further, when a flow control knob 5f of a flow control cylinder 5 is turned, the areas of the openings to the main water channel A side and the sub-water channel B side are changed by the throttle holes 5c, 5d to adjust the flow flowing into respective water channels A, B.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a flow rate control device for a sanitary cleaning device for cleaning private parts of the human body.

BACKGROUND OF THE INVENTION Conventionally, many sanitary cleaning devices used tap water supply pressure to forcefully send cleaning water from a nozzle to clean private parts of the human body. However, the water supply pressure generally fluctuates by 1 to 8 inches f/- depending on the region or the type of housing, so washing water is always supplied from the nozzle at a stable jet pressure, causing no inconvenience to the user. In order to prevent the pleasure from increasing, the following flow control device was used. They are the pressure reducing valve method and the constant flow valve method.

The pressure reducing valve system, for example, in Japanese Utility Model Publication No. 61-229036, had the following configuration. That is,
In FIG. 5, a pressure reducing valve section (■) having a water supply port 11, an electromagnetic valve section (■) provided at the downstream ffFJ, and a secondary boat 13 that communicates with a downstream communication channel and a local cleaning nozzle 12. A safety valve JV and a check valve V are integrally formed between the throttle valve (1) formed between the two and the water disposal boat 14 from the communication channel.

The function of this device is that the water supply port connected to the water supply port 11 generally has a pressure of 1 to 8 kgf/cd, but first the pressure is regulated to a predetermined set pressure by the pressure reducing valve part (■), and the water water is controlled by the solenoid valve part (■). The amount of water supplied to the private part cleaning nozzle 12 is adjusted by changing the opening degree of the throttle valve (2) by rotating the flow rate adjustment knob 15. and pressure reducing valve part 1
When the nozzle malfunctions, the pressure is released to the water disposal boat 14 by the safety valve 1■, so that high water pressure is not applied to the private part cleaning nozzle 12 side.

In addition, the constant flow valve system is, for example,
Publication No. 72 had the following structure. That is, in FIG. 7, from the water pipe 21 to the water distribution pipe 21a
It passes through the constant flow valve 22, the throttle valve 23, and the on/off valve 2.
4, passes through a hot water tank unit 25 equipped with a heater 25a, and is sprayed from a nozzle 26 to clean the private parts. 22 is a relief valve and is connected to a drain 28. Even if the water supply pressure changes from normal pressure to high water pressure, the water flow gap formed by the constant flow valve 22 changes according to the primary side water supply pressure, and the pressure of the cleaning water injected from the nozzle 26 remains constant. It was said that it would be.

Problems to be Solved by the Invention However, problems with the flow control device using this conventional pressure reducing valve method include the diaphragm 16A, spring 17A, valve shaft 18, valve seat 19, spring pressure regulating section (spring pressure regulating section) 17B, It was an assembly of parts such as the diaphragm retaining plate 16 [3] that had a very complicated shape and required high processing accuracy, and was therefore extremely costly compared to the required functions.

Another problem with conventional flow control devices using constant flow valves is that constant flow valves do not have a governor effect below the set flow rate of the constant flow valve, and are affected by the negative pressure. In other words, in the waterway shown in FIG. 6, when adjusting the flow rate with the throttle valve 23 provided downstream of the constant flow valve 22, it was not possible to adjust the flow rate below the set flow rate of the constant flow valve 22. .

For example, in order to adjust the set flow rate of the constant flow valve 22 to 2Ω/l1in and the flow rate flowing through the nozzle 26 to 1ρ/iin, the throttle valve 2
The opening degree must be increased, and the -next pressure is 8kt.
When f/-, the opening degree of the throttle valve 23 must be reduced to the + end and adjusted to 1Ω/1in. In other words, even though the constant flow valve 22 is provided, the result is that it is affected by the negative pressure.

Therefore, this type of constant flow valve is generally used as a safety valve to prevent the flow rate from exceeding a predetermined set flow rate, or for the purpose of saving water.

On the other hand, in this type of sanitary washing equipment, the hot water tank (heating device) has been downsized due to restrictions on the size of the equipment due to the toilet space, power savings, water conservation, etc. ), it was required to increase the cleaning effect, and the challenge was to achieve this.

The present invention solves the above-mentioned problems, has a simple structure, is low cost, supplies a stable amount of water to the cleaning nozzle regardless of the high or low water supply pressure, and increases the amount of water in the cleaning nozzle linearly from small to large. It is an object of the present invention to provide a flow rate control device for a sanitary cleaning device that can adjust the m lit.

Means for Solving the Problems In order to solve the above problems, the flow rate control device for a sanitary washing device of the present invention includes a constant flow valve connected to a water supply port, a water stop valve,
A waterway branch that branches downstream of the constant flow valve and the water stop valve, a main waterway that connects to one of the waterway branching parts to the local cleaning nozzle, and a sub-waterway that leads to the discharge port that is connected to the other side of the waterway branch. The waterway is provided with a distribution ratio variable means for changing the distribution ratio for distributing the flow rate flowing through the waterway and the constant flow valve at the waterway branching portion or the downstream side of the waterway branching portion to the main waterway side and the auxiliary waterway side.

Effect With the above configuration, whether the downstream supply pressure is high or low, the constant flow valve is provided with a waterway branch part and a main waterway that branch on the downstream side of the constant flow valve, and the flow rate flowing through the constant flow valve is controlled. The system is equipped with a distribution ratio variable means that changes the distribution ratio between the main channel and the sub-channel to adjust the amount of water on the main channel, so that water always flows at a rate higher than the set flow rate of the constant flow valve. A constant amount of water can be supplied by constantly drawing out the governor characteristics, and the flow on the main channel side leading to the cleaning nozzle can be adjusted without being affected by the next pressure.

EXAMPLE Hereinafter, an example of the present invention will be explained based on the accompanying drawings.

FIG. 1 is a schematic sectional view showing a flow rate control device for a sanitary washing apparatus according to an embodiment of the present invention, and FIG. 2 is a schematic perspective view of a flow rate adjustment cylinder of the same flow rate control device.

In FIGS. 1 and 2, reference numeral 1 denotes a water supply port that communicates with a water pipe in a waterway manner, and has a constant flow valve 2 installed therein. The constant flow valve 2 includes a gasket 2b made of a rubber elastic body and having a water passage port 2a in the center, a gasket housing 2d that holds the gasket 2b inside and has a stepped hole 2c in the center, and a gasket housing 2d that holds the gasket 2b inside and has a stepped hole 2c in the center. A spring 2g biases the end face 2e of the seal housing 2d and the end face contact portion 2f of the inner surface of the water supply port 1 to form a gap of ΔL, and a boulder 2h for preventing the seal housing 2d and the seal 2b from falling off. It is formed by

A water stop valve (electromagnetic valve) 3 is provided downstream of the constant flow valve 2, and a waterway branching portion 4 is provided below the water stop valve 3. The waterway branching section 4 branches the waterway into the main waterway Affll and the splint channel BIII on the downstream side, and is capable of adjusting the amount of water flowing into each waterway. That is, in the waterway branching part 4, 4a is a branching case, which is cylindrical and has a water inlet 4b connected to the secondary side of the water stop valve 3 on the bottom surface, and a main water fIBA on the outer periphery.
It has two-stage water outlets 4c and 4d for communicating with the side and sub-channel B1lPI, respectively.

Inside the branch case 4a, a hollow cylindrical flow rate adjustment cylinder 5 is rotatably fitted with its outer circumferential surface in close contact with the inner circumferential surface of the branch case 4a, constituting a distribution ratio variable means. . this? , the bottom surface of the amount adjusting cylinder 5 is opened to form a water inlet 5a, and the water inlet 4 of the branch case 4a is opened.
It corresponds to and is continuous with b. Further, in the outer peripheral portion 5b, throttle holes 5 each having a substantially triangular shape elongated in the circumferential direction are provided at positions corresponding to the water outlets 4c and 4d of the branch case 4a.
C and 5d are arranged so that their triangular directions are opposite to each other, and furthermore, 0 is placed at the top, middle and bottom positions to prevent leakage to the outside and between each water channel.
A ring 5e is fitted.

Further, a flow rate adjustment knob 5f is attached to the upper surface of the branch case 4a protruding from the branch case 4a. The throttle holes 5c and 5d of the flow rate adjustment cylinder 5, when rotated while fitted inside the branch case 4a, open the main waterway as the rotation angle increases, as shown in FIG. Flow rate flowing to A side (Qa)
becomes larger, and conversely the flow rate flowing towards the sub-channel B side <Qb)
is made to decrease, and the sum Qt= <Q
a+Qb) is kept approximately constant at any rotation angle.

On the downstream side of the waterway branch part 4, the main waterway All1! A relief valve 6 is provided between the main waterway A and the secondary waterway B side.
When the water pressure of 11 liters exceeds a predetermined force, the relief valve piece 6b opens against the relief valve spring 6a,
Excess pressure is released to the sub-channel B side.

A hot water tank unit 7 is provided on the downstream side of the main water N A fl, and a heater 7a heats water, and a hot water temperature sensor 7b boils the water to a predetermined temperature. A local cleaning nozzle 8 is located downstream of this hot water tank unit 7.
has been established. A discharge port 9 is provided on the most downstream side of the secondary waterway B to discharge water into the toilet bowl 10.

Next, the operation of the flow rate control device of this embodiment will be explained.

When the user turns on a cleaning switch (not shown), first the water stop valve 3 opens and water flows in from the water supply port l. When the water supply pressure is relatively low (2+qrf/- or less), the spring pressure of the spring 2g of the constant flow valve 2 creates a gap ΔL between the end surface 2e of the seal housing 2d and the end surface contact portion 2f.
Therefore, water flows from the outer periphery of the packing housing 2d (arrow M) and from the water passage hole 2a of the packing (arrow N). Water supply pressure is high water pressure (approximately 2 to 81 qrf/ad
), the gap Δ is eliminated, water flows only through the water passage hole 2a (arrow N) of the packing, and the packing 2b
is compressed from the primary side to the secondary side by water pressure, and as a result, the overwater diameter of the water passage hole 2a of the packing is adjusted so that a constant flow rate constantly flows according to the water pressure on the primary side. In other words, the primary side water pressure (water supply pressure) (PI) of the constant flow valve 2 and the constant flow valve 2
The relationship between the flow ffi<Qt) is as shown in FIG. In this embodiment, the set flow rate fQt
A constant flow valve 2 is used such that I Q /min. Therefore, even if the water supply pressure changes from low pressure to high pressure, water of 1ρ/11n always flows after the constant flow valve 2.

The water that has flowed through the constant flow valve 2 passes through the water stop valve 3, flows to the waterway branching section 4, and enters the main waterway All! 1 and flows to the side of the sub-channel B. The throttle hole 5 of the flow rate adjustment cylinder 5 is connected to the main waterway A side.
C, the hot water passes through the water outlet 4C, becomes hot water in the hot water tank 7, and is jetted out from the private part cleaning nozzle 8 to clean the private parts of the human body. On the other hand, the flow rate adjustment cylinder 5 is sent to the secondary waterway Bffl.
, passes through the throttle hole 5d, passes through the water outlet 4d, and is discharged from the outlet 9 into the toilet bowl 10. Furthermore, the user can turn the flow rate adjustment knob 5.
By turning f, the elongated, almost triangular-shaped calibration holes 5c and 5 provided in the ff1fit adjustment cylinder 5 can be opened.
The opening area to the main waterway A side and the subwaterway B side is changed by d, and the flow rate flowing into each waterway, that is, the distribution ratio can be adjusted. That is, since the elongated, substantially triangular-shaped baffle holes 5c and 5d are arranged in opposite directions, for example, when the user turns the flow rate adjustment knob 5f, as shown in FIG. Turn,
The flow rate (Qa) flowing to the private part cleaning nozzle 8 is set to 0.4ρ/n.
Even if it is less than in, splint TI! The opening area of the throttle hole 5d on the 6B side becomes larger, and a flow rate (Qb) of 0.6ρ/11n is discharged from the discharge port 9 to the subchannel B IJII. As a result, the flow rate that always flows through the constant flow valve 2 is constant. It is possible to secure 1ρ/11n of 1 (Qt) of the set flow of the flow rate valve 2,
-Flow rate can be adjusted without being affected by downstream water pressure. Also, all main waterways! Since the relief valve 6 is provided between I and the secondary waterway B111, even if there is some fluctuation in the performance of the constant flow valve 2 itself, excess pressure will not be released from the main waterway A side to the lake water IMB side. Therefore, no abnormal water pressure is applied to the private part cleaning nozzle 8.

Effects of the Invention As is clear from the above explanation, the flow rate control device for a sanitary washing device of the present invention provides the following effects.

(1) With the above configuration, whether the water supply pressure of the downstream side supply water is high or low, it is equipped with a constant flow valve, and the waterway branching part that branches downstream of the constant flow valve, the main waterway, and the subwaterway can be connected. Prepare,
By changing the degree of restriction of the main channel side and the sub-channel side using the distribution ratio variable means configured at the waterway branch part or its downstream side, the distribution ratio can be changed to make the main water 1 yen 8ff! Since the water flow rate is adjusted by 1, it is possible to ensure a channel through which water always flows at a flow rate higher than the set flow rate of the constant flow valve, and by constantly drawing out the governor characteristics, a constant amount of water can be supplied, allowing for local cleaning regardless of the water supply pressure. The flow rate of water (hot water) ejected from the nozzle can be adjusted linearly from a small flow rate to a large flow rate.

(2) In addition, it has a very complex shape, which is formed from the diaphragm, spring, valve stem, valve seat, spring pressure adjustment part (spring pressure adjustment part), diaphragm retaining plate, etc. that have been commonly used in the past. It has a simple structure and does not require the use of a pressure reducing valve, which was an assembly of parts that required high processing accuracy.
Moreover, it is low cost, supplies a stable amount of water to the cleaning nozzle regardless of the high or low water supply pressure (water pressure), and the flow rate of water (hot water) spouted from the local cleaning nozzle can be adjusted linearly from a small flow rate to a large flow rate. A sanitary cleaning device can be provided which is adjustable and highly beneficial to the user.

[Brief explanation of the drawing]

FIG. 1 is a schematic sectional view showing a flow rate control device of a sanitary washing device according to an embodiment of the present invention, FIG. 2 is a schematic perspective view of a flow rate adjustment cylinder of the same flow rate control device, and FIG. Figure 4 shows the characteristics of the constant flow valve of the same flow rate control device, and Figure 5 shows the conventional flow rate control characteristic! FIG. 6 is a schematic sectional view showing another conventional flow rate control device (constant flow valve type). 1... Water supply port, 2... Constant flow valve, 3... Water stop valve,
4... Waterway branch part, 4a... Branch case, 4b...
・Water inlet, 4c, 4d... Outlet, 5...i Ji
l m4 section cylinder, 5a...water inlet, 5b...outer periphery, 5c, 5d...throttle hole, 8...local cleaning nozzle, 9...discharge port, A...main waterway, B... Minor waterway. Agent Yoshihiro Morimoto 3rd Figure 4--QjlJ warehouse (μh (≦) (PIin (male)

Claims (1)

[Claims] 1. A constant flow valve connected to the water supply inlet, a water stop valve, a waterway branch that branches downstream of the constant flow valve and water stop valve, and a local cleaning nozzle connected to one of the waterway branches. The flow rate flowing through the main waterway, the secondary waterway leading to the discharge port connected to the other side of the waterway branch, and the constant flow valve at the waterway branch or the downstream side of the waterway branch is distributed between the main waterway and the auxiliary waterway. a distribution ratio variable means for changing a distribution ratio, the distribution ratio variable means having a water inlet connected to a constant flow valve and a water stop valve, and two water outlets branched and connected to a main waterway side and a subwaterway side. A substantially hollow cylindrical branch case, a water inlet part on the bottom surface, which is rotatably fitted in close contact with the inner surface of the branch case, and a substantially triangular shape on the outer periphery which is divided into the main channel side and the sub-channel side. 1. A flow control device for a sanitary cleaning device, which comprises a flow rate control cylinder having a substantially hollow cylindrical shape and having a shaped throttle hole.