JPH0366844A - Sanitary cleaning device - Google Patents

Abstract

PURPOSE:To give a comfortable clean feeling at all times by installing an adjusting device equipped with relief valve, which adjusts the flow distribution ratio to a main and an aux. watercourse with rotation of a cylindrical valve element when an approx. constant amount of water is distributed to the two watercourses. CONSTITUTION:A divergent water plug 4 equipped with a constant flow valve is fitted to a service water pipe 6 and connected with the device body 2 through a coupler pipe 3. The device body 2 is furnished with a water stop solenoid valve 16 which is opened and closed with a switch. Further a flow adjusting device 17 is installed to distribute water to a main watercourse leading to a washing nozzle and an aux. watercourse for washing a water closet. This adjusting device 17 is equipped with a main flow adjusting valve 25, aux. flow adjusting valve 26 and relief valve 24, and turning of an adjusting knob 27 will adjust the flow distribution ratio to the two watercourses with the aid of a cylindrical valve element. Thereby stable washing can be performed always independent from pressure variation of the service water.

Description

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

BACKGROUND OF THE INVENTION A conventional sanitary cleaning device directly connected to a water supply system that uses tap water pressure to inject cleaning water is, for example, the system described in Japanese Utility Model Application Publication No. 6O-58F374. The configuration of the flow rate adjusting device of this device is shown in FIG. 6, where θO is a cleaning nozzle for spraying cleaning water toward private parts of the human body, and 61 is a hot water tank. Water flows into the device from the water pipe 62 via the on-off valve 63, passes through the flow control valve 64, and branches into the switching valve 65 and the relief valve 66. The switching valve 65 and the relief valve 66 are each opened by water pressure.

The water that has passed through the switching valve 65 is sent to a hot water tank 61 and is jetted out from a cleaning nozzle 60 as cleaning water. Further, the water that has passed through the relief valve 66 is discharged from the drain waterway 67 as waste water.

Problems to be Solved by the Invention However, in the device with the above configuration, the switching valve 65 and the relief valve 66 are each independently biased by a spring, and the amount of water passing through each valve 6566 is Each of these is configured to increase or decrease in proportion to the amount of water sent through the flow control valve 64. Therefore, in order to increase the force of the cleaning water from the cleaning nozzle 60, even if the flow rate adjustment valve 64 is adjusted and the amount of water is increased, the relief valve 66
Since the amount of water that passes through the switching valve 65 and becomes waste water also increases, the amount of water that passes through the switching valve 65 does not increase sufficiently.Therefore, it is inefficient to adjust the force of the jetted water, and a lot of wasted water is also increased. There were drawbacks. FIG. 7 shows the flow rate characteristics of this conventional device. This device also has the problem that when the water supply pressure changes, the flow rate passing through the flow control valve 64 increases or decreases, and the cleaning water force from the cleaning nozzle 60 fluctuates. there were. In particular, the water supply pressure varies depending on the region and type of housing, and even within the same house, it varies depending on the water discharge situation in the bath, kitchen, etc., so the water pressure fluctuates when using sanitary cleaning equipment. This may cause discomfort to some people.

Means for Solving the Problems In order to solve the above problems, the sanitary washing device of the present invention includes a constant flow valve, a water stop valve, a flow rate adjustment device, and the like.
A cylinder section that is arranged in parallel to the valve case of the flow rate adjustment device, and is composed of a hot water tank, a main waterway consisting of a private part cleaning nozzle, and a subwaterway that branches off from the flow rate adjustment device and communicates with the water outlet to the toilet bowl. A relief valve that opens when the water pressure exceeds a certain level and allows water to flow to the sub-channel is provided on one side of the cylinder, and a main flow regulator and a sub-flow regulator that can adjust the flow rate distribution ratio in almost inverse proportion are provided on the other side of the cylinder, respectively. It is equipped with cylindrical valve bodies formed corresponding to the main waterway and the sub-waterway.

Effect With the above configuration, when the user sets the washing water force to strong, the amount of washing water to the main waterway side increases and the amount of water flowing to the secondary waterway side decreases, reducing wasted water and making it more effective. It is possible to obtain a strong washing water force and contribute to water saving. In addition to being able to limit the amount of water flowing into the flow rate adjustment device to a roughly constant value using a constant flow valve, the flow rate adjustment device also has a Since the relief valve operates and leaks a flow rate exceeding the set value to the sub-channel, the water pressure applied to the cleaning nozzle is stabilized, and a predetermined cleaning water force can always be obtained.

Example An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 shows a water circuit configuration of a sanitary cleaning device according to an embodiment of the present invention.A sanitary cleaning device main body 2 is installed on a toilet bowl 1,
A branch faucet 4 and a connection adapter 5 are connected via a connecting pipe 3. Water from the water pipe 6 is branched and supplied from a branch faucet 4 to a low tank 7, which is a toilet flush water tank, and to the sanitary cleaning device main body 2 through a connection adapter 5. 8 is the original stop valve, 9 is a ball tap in the low tank 7, and 10 is a water supply pipe that connects the branch faucet 4 to the ball tap.In the waterway that communicates from the 6-branch faucet 4 to the sanitary washing device main body 2, A water stop valve 11 is installed in the branch faucet 4, and a strainer 13, a backflow prevention valve 14, and a drain valve 15 are installed in the connection adapter 5.
are provided sequentially from the primary side (upstream 11'l). Further, inside the sanitary washing device main body 2, a water stop solenoid valve unit 16 and a flow rate adjustment device 17 are provided from the negative side. A secondary opening downstream 011) of the flow rate adjustment device 17 includes a hot water tank 18, a main water channel that communicates with the anus cleaning nozzle 20 and the bidet cleaning nozzle 21 via the cleaning nozzle switching valve 19, and an air gap 22 ( A sub-channel is provided which communicates with the water outlet to the toilet bowl 1, and water flowing from the branch faucet 4 is distributed into two channels by a flow rate regulating device 17. The water stop solenoid valve unit 16 includes a water stop solenoid valve 22 and a constant flow valve 23 disposed on its primary side, and the flow rate adjustment device 17 includes a relief valve 24 interposed between the main waterway and the subwaterway, It has a main flow regulating section 25 and a sub flow regulating section 26 provided corresponding to each water channel. In addition, the secondary opening of the main flow rate adjustment section 25 is performed in the hot water tank 1.
8, and the secondary side of the sub flow rate adjustment section 26 communicates with the air gap 22. 27 is the water volume adjustment part 25.2
This is a water force adjustment knob connected to 6. Further, the hot water tank 18 is provided with a heater 28 and a vacuum break valve 29, and the vacuum break valve 29 communicates with the air gap 22. The cleaning nozzle switching valve 19 has a shutoff valve 30 communicating with the anus cleaning nozzle 20 and a tfffffl communicating with the bidet cleaning nozzle 21.
There are 31 in total.

FIG. 2 is a sectional view showing details of the water stop solenoid valve unit 16. In FIG. 2, the water stop electromagnetic valve 22 consists of a diaphragm 36, a plunger 37, and a solenoid 38 housed in a valve body 32. The diaphragm 36 corresponds to the water stop part of the sanitary washing device, and the next side of this valve is always connected to the water supply. water supply pressure is applied. The constant flow valve 23 includes a push plate 33 that is housed in the water inlet part of the valve body 32 in order from the primary side, a valve body 34 made of an elastic body, and a holder 35 that holds the valve body 34.
It's getting better. The push plate 33 is watertightly attached to the inner surface of the water inlet part of the valve body 32 via an O-ring 39, and a connecting pipe 43 of the inlet AIFI is connected to the push plate 33 via an O-ring 40 and washers 41 and 42. The connecting pipe 43 is connected to the valve body 32 with a cap nut 44.
It is fastened to the water entrance. Further, the connecting pipe 46 of the outlet Bflll is watertightly attached to the water discharge portion of the valve body 32 via an O-ring 45, and is held by a metal fitting 47.

FIG. 3 (aHb) is a side sectional view and a top view showing details of the flow adjustment device 17. The valve case 48 has an inlet C, an outlet communicating with the hot water tank 18, and an air gap 22.
An outflow port E communicating with is provided, and an inflow port CIFI is attached to the water inlet portion via an O-ring 58. Further, the valve case 48 has two parallel cylinder portions each communicating with the inflow port C, and one of the cylinder portions has two cylinder portions in parallel.
A substantially hollow cylindrical valve element 49 that is close to the cylinder part and is rotatable is inserted to constitute a flow rate control valve, and a valve piece 5 biased by a spring 50 is placed in the other cylinder part.
1 is provided to constitute the relief valve 24. 52 is an O-ring, and the spring 50 keeps the valve piece 51 watertight.

Reference numeral 53 designates a valve lid, which holds the valve body 49 in one cylinder portion of the valve case 48 and forms a seat against which the spring 50 abuts in the other cylinder portion. 0 ring 54
holds the valve cover 53 and the valve case 48 watertightly, and the O-rings 55, 56, and 57 hold the valve body 49 and the valve case 48 watertightly, thereby preventing water from leaking to the outside. Also,
The valve body 49 is provided with two slit-shaped cutouts that penetrate from the inside of the hollow cylinder to the outer circumference between the respective O-rings 55, 56, 57, and a main flow rate adjustment section for adjusting the flow rate. 25 and a sub flow rate adjustment section 26 are formed.

FIGS. 4(a) and 4(b) are schematic diagrams showing details of the flow rate adjusting portions 25, 26 and their flow rate characteristic diagrams. Main flow adjustment section 2
Reference numeral 5 consists of a rectangular opening 25b provided in the valve case 48 so as to communicate with the outlet port of the valve case 48, and a notch 25a provided in the valve body 49, and the rotation angle of the valve body 49 is 0˜.
For 180 degrees, the washing water force is set to "strong" to "weak". This notch 25a has a substantially triangular shape so that the width of the notch decreases with respect to the rotation angle. At the 0° position, the opening 25b is fully opened, and at the 1800 position, the notch 25a opens the opening 25b. The opening area is narrowed down, and the shaded area in FIG. (resistance changes) and the ability to adjust the flow rate decreases. The sub flow rate adjustment section 26 consists of a rectangular opening 26b provided in the valve case 48 so as to communicate with the secondary side of the relief valve 24, and a notch 26a provided in the valve body 49. On the contrary, the cutout width is set to be approximately triangular so that the notch width increases and changes with the rotation angle, and when the rotation angle is near 0゛ ("strong" setting), the cutout 26a closes and closes the opening 26b. In this way, the main stream i adjustment section 25 and the sub flow rate adjustment section 26
are configured such that the opening areas of the valve bodies 49 change in almost inverse proportion to each other as the valve body 49 is rotated, and the opening area ratio of the opening areas varies depending on the rotation angle as the flow rate of the main flow rate adjusting section 25 changes from "strong" to "weak". is set so that the total amount of water in the two water channels changes linearly and remains constant (the main flow rate adjustment unit 25
(The combined resistance of the fluid resistance of the water channel communicating with the cleaning nozzle and the fluid resistance of the sub-flow control unit 26 is set to be a constant value regardless of the rotation angle) 9 The value of this total water flow is specified by the Waterworks Bureau. Set the water meter to a value that exceeds the insensitive water volume and close to the "strong" flush setting. For convenience, this value will be called a balance flow rate.

FIG. 4(b) shows the water flow rate characteristics of the flow rate adjusting portions 25 and 26 with respect to the rotation angle of the valve body 49. Here, the opening 25
b, notch 25a, opening 26b, notch 2
In this example, the positional relationship of 6a is 90° from FIG. 4(a).
located in a remote location. However, the relative relationship between the opening areas is the same as described above.

Next, the operation of the sanitary washing device having this configuration will be explained. When not in use, the water supply pressure is upstream of the water stop solenoid valve 22! The voltage up to I is applied. Pj! When the user performs an anus or bidet cleaning operation, the water channel of the cleaning nozzle switching valve 19 opens accordingly. Then stop the water 'r4? i! The valve 22 opens and tap water flows into the hot water tank 18 through the flow rate regulating bag fi17. Then, heater 2
8 pushes out hot water that has been boiled to an appropriate temperature and is sprayed through the anal cleaning nozzle 20 or the bidet cleaning nozzle 21 to clean the private parts.

When a strong cleaning water force is required, set the water force adjustment knob 27 to the ``strong J'' position of 08, and as shown in Fig. 4(a), the main stream i adjustment section 25 is fully opened and the sub flow rate adjustment section 26 is fully opened. Because the system is closed, waste water that is not used for cleaning is minimized, and most of the flow flows into the main waterway, allowing efficient water usage.

In addition, when a soft water flow is required for elderly people, young children, people with hemorrhoids, etc., when the water flow adjustment knob 27 is set to 180° (low J position), the flow channel of the main a volume adjustment section 25 is narrowed, and the sub flow amount adjustment section 26 is fully opened, the flow rate to the sub-channel increases, and therefore the amount of washing water to the main channel decreases, making it possible to obtain an appropriate water force.

Further, in this embodiment, a constant flow valve 23 is disposed within the water stop electromagnetic valve unit 16, but this has a valve body 34 made of an elastic body.
This is a water governor type that adjusts the waterway area by compressing and deforming in response to water pressure.

For this reason, the flow rate characteristic has a mountain shape that shows a maximum value near the medium water pressure as shown in FIG. 5 (aNb).

The water supply pressure of ordinary household water supply is usually about 0.5 to Bkgf/-
Furthermore, even within a single household, the water supply pressure to the sanitary washing equipment fluctuates due to water discharges and shutoffs in the kitchen, bathroom, etc. However, in this embodiment, the following action makes it possible to always obtain the set washing water force regardless of fluctuations in the water supply pressure. That is, constant flow valve 2
3 exceeds the above-mentioned balance flow rate, the water pressure at the inlet C of the valve case 48 becomes higher than the opening pressure of the relief valve 24. As a result, the relief valve 24 opens and the excess flow is leaked into the secondary waterway as water. This ensures that the flow to the flow regulators 25, 26 is still maintained at the balance flow value and therefore the cleaning nozzles 20, 21
The water pressure does not fluctuate, providing a comfortable feeling of use.

Figure 5 shows an outline of the waterway flow distribution when the water supply pressure fluctuates. FIG. 5(a) shows the case of "strong J setting. At this time, since the sub flow rate adjustment section 26 is closed, the balance flow rate and the cleaning flow rate are almost equal, and the excess flow rate from the constant flow valve 23 is is leaked as waste water by the relief valve 24 (shown in the shaded area on the right in Fig. 5 (a)), and a stable washing flow rate is obtained regardless of the water pressure. Fig. 5 (b) shows the case of the "weak" setting. The excess flow from the constant flow valve 23 is leaked as waste water by the relief valve 24 (Fig. 5(b)).
(shown in the shaded area on the right), a stable cleaning flow rate can be obtained because the balance flow rate does not fluctuate. At this time, the flow rate flowing out from the sub-flow rate adjustment section 26 to the sub-channel (left diagonal i in Fig. 5(b)
(shown in the figure) is also waste water.

In addition, if abnormally high water pressure is applied to the device due to water work or trouble with the constant flow valve, or if the waterway communicating with the cleaning nozzle is blocked by foreign matter, the relief valve 24
is opened and the water pressure is released from the spout 22 to the external toilet bowl 1, so that the hot water tank 18 and the like are not destroyed, and a safe sanitary cleaning device is provided without worrying about water intrusion due to water leakage, A electric shock, etc. be able to. Furthermore, the flow rate adjustment device 1
7, the movable parts include a relief valve piece 51 that is biased by a spring 50 and a valve body 49 that is rotated by a knob 27.
This is an extremely simple and highly mechanically reliable structure.

Effects of the Invention As described above, the sanitary cleaning device of the present invention provides the following effects.

(1) A constant flow valve provided in the electromagnetic valve unit regulates the flow rate to the device to an approximately constant value, and two main and sub flow control portions provided in the flow rate adjustment device are capable of distributing the flow rate in approximately inverse proportion; The leak function of the parallel relief valves prevents fluctuations in the water supply pressure from affecting the washing water force, ensuring a comfortable washing feeling at all times.

(2) Due to the safety valve function of the relief valve, there is no need to worry about structural damage or water leakage, even in unexpected situations such as waterworks, trouble with the constant flow valve, or garbage clogging in the waterway, making it a safe sanitary cleaning device. can do.

(3) With an extremely simple flow control device configuration (1)
The effect of item (2) can be obtained, and a sanitary cleaning device that is simple, has high mechanical reliability, and is low cost can be provided.

[Brief explanation of drawings]

Figures 1 to 5 show an embodiment of the sanitary washing device of the present invention, in which Figure 1 is a water circuit diagram of the entire device, Figure 2 is a sectional view of the water stop solenoid valve unit, and Figure 3 ( aHb) is a sectional view and top view of the flow rate adjustment device, Figure 4 (aHb) is a detailed schematic diagram of the flow rate adjustment unit and its flow rate characteristic diagram, Figure 5 (a)
(b) is a flow rate characteristic diagram of the flow rate adjustment device when it is set to “strong j” and “weak”; Figure 6 is a partial cross-sectional view of the flow rate adjustment device of a conventional sanitary washing device; and Figure 7 is its flow rate characteristic diagram. It is. 2... Sanitary cleaning device body, 4... Branch faucet, 5...
・Connection adapter, 16...Water stop solenoid valve unit, 17
...Flow rate adjustment device, 18...Hot water tank, 19...
・Waterway switching valve, 20... Anal cleaning nozzle, 21...
Bidet cleaning nozzle, 22... Water stop solenoid valve, 23... Constant flow valve, 24... Relief valve, 25... Main stream i adjustment section, 26... Sub flow rate adjustment section, 27... Water force adjustment knob, 28...Motor, 48...Valve case, 49...
- Valve body, 50... Spring, 51... Relief valve piece.

Claims (1)

[Claims] 1. A water stop valve connected to the water pipe via a constant flow valve,
a flow rate adjustment device connected to the water stop valve; a main waterway communicating from the flow rate adjustment device to a cleaning nozzle for cleaning private parts of the human body via a hot water tank; and a water outlet branching from the flow rate adjustment device to the toilet bowl. The water circuit of the flow rate regulating device has a main flow regulating section corresponding to the main channel, a sub flow regulating section corresponding to the sub channel, and a primary side water pressure of the flow regulating device is equal to or higher than a set value. and a relief valve that opens to allow water to flow to the secondary waterway when formed into a cylindrical valve body, and the relief valve is arranged in the other cylinder part,
The passage area of each of the main flow rate adjusting section and the sub-flow rate adjusting section is configured to be approximately inversely proportional to the rotation angle of the valve body, and the flow rate distribution between the main channel and the sub-channel is achieved by rotating the valve body. A sanitary cleaning device that adjusts the ratio.