JPH0366843A - Sanitary cleaning device - Google Patents

Abstract

PURPOSE:To supply a washing nozzle with water in a stable amount at all times by furnishing a device body, to which water is supplied via a diverging water plug equipped with a constant flow valve, with a water stop valve for operation of a switch and a water course divergence on which a flow adjusting valve and a relief valve are installed. CONSTITUTION:A constant flow valve is installed at the flowout hole 17 of a divergent water plug 11 to be fitted at a service water pipe 12. The body 16 of device concerned is equipped with a water stop valve 3 opened and closed with a switch and a watercourse divergent part 4 on which a flow adjusting cylinder 5 and a relied valve 6 are installed. To this watercourse divergent part 4 are connected a main watercourse A leading to a local wash nozzle 8 and an aux. watercourse B leading to a discharge hole 9. Even though the service water pressure varies, a stable amount of water is supplied to the washing nozzle, and a constant flow valve installed at the flowout hole 17 of the divergent water plug 11 is replaced, cleaned, etc., easily. Thus, the cleaning can be made in convenient process at all times.

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, and particularly to a flow rate control device thereof.

BACKGROUND OF THE INVENTION Many conventional sanitary washing devices use water pressure to forcefully send washing water through a nozzle to wash private parts of the human body. However, the water pressure generally varies by 0.5 to 8 kgf/a depending on the region or the type of housing, so cleaning water must always be supplied from the nozzle at a stable jet pressure to ensure that it does not cause discomfort to the user. ) In order to do so, the following flow control device was used. There are a pressure reducing valve method and a constant flow valve method.

The pressure reducing valve system has the following configuration, for example, in Japanese Patent Application Laid-Open No. 61-229036. In FIG. 5, a pressure reducing valve section 32 having a water supply port 31, an electromagnetic valve section 33 provided on the downstream side of the pressure reducing valve section 32, and a communication channel 34 on the further downstream side.
and a throttle valve 36 provided between the secondary port 35 and the secondary port 35;
A safety valve 38 and a check valve 39 provided between the communication channel 34 and the wastewater port 37 are each integrally constructed.

The water pressure supplied to the water supply port 31 is generally 0.5 to 8 kgf/ai;
2 to adjust the pressure to a predetermined set pressure, the solenoid valve section 33 to open and close the water passage, and the flow adjustment knob 40 to be rotated to change the opening degree of the throttle valve 36 via the wire 41.
The amount of water supplied from the secondary port 35 to the local cleaning nozzle 43 through the hot water tank 42 is adjusted. When the pressure reducing valve section 32 malfunctions, the safety valve 38 releases the pressure to the waste water port 37 to prevent high water pressure from being applied to the private part cleaning nozzle 43 side. 42a is a heater for the hot water tank 42.

In addition, the constant flow valve system, for example,
In Publication No. 80, the waterway configuration was as follows. In FIG. 6, water is supplied from a water pipe 51 through a branch tap 52 to a solenoid valve 54 in a cleaning device main body 53, passes through a water governor 55, a flow rate regulator 56 and a hot water tank 57, and then reaches a cleaning nozzle 58. Wash water circuit A leading to water governor 5
5 and a waste water circuit B branched from between the flow rate regulator 56.

Problems to be Solved by the Invention However, problems with the conventional pressure reducing valve system flow control device shown in FIG. ) 48, tire flam retaining plate 49, etc., which had a very complicated shape and required high machining accuracy, so the cost was extremely high compared to the required functions.

Furthermore, in the structure of the conventional constant flow valve type flow control device shown in FIG. Or, when it became clogged, maintenance such as replacement or m removal could not be easily performed. Furthermore, since the water governor 58 is disposed within the cleaning device main body 53, the piping within the cleaning device main body 53 must have a water channel structure that can withstand high water pressure.

The present invention solves the above-mentioned problems, and has a simple configuration and low cost, and can supply a stable amount of water to the cleaning nozzle regardless of the level of supply pressure (water pressure), and can increase the amount of water in the cleaning nozzle from small to large. Furthermore, the flow rate can be linearly adjusted up to The purpose is to provide a sanitary cleaning device that can be used for plumbing, etc.).

Means for Solving the Problems In order to solve the above problems, the sanitary cleaning device of the present invention includes a branch faucet connected to a water supply pipe, an outlet of the branch faucet, and a main body of the cleaning device for cleaning human body private parts. A connecting pipe connecting the water supply port, a water cutoff valve provided on the downstream side of the water cutoff port within the cleaning device main body, a waterway branch portion provided on the downstream side of the water cutoff valve, and one of the waterway branching portions. a main waterway leading to a local cleaning nozzle connected to the waterway, a subwaterway leading to a discharge port connected to the other side of the waterway branch, a flow rate adjustment valve provided corresponding to the subwaterway at the waterway branching part, and a main waterway and a relief valve that opens the main waterway side to the auxiliary waterway side when the water pressure on the side becomes higher than a predetermined water pressure.

A constant flow valve is provided in the branch faucet located on the most upstream side.

Effect With the above configuration, the constant flow valve installed in the branch faucet supplies a flow rate unaffected by a wide range of primary water pressure from low water pressure to high water pressure to the main waterway side and the secondary waterway side. With a flow rate control valve and a relief valve that opens the main waterway to the secondary waterway when the pressure on the main waterway side becomes higher than a predetermined pressure,
iIt has a simple configuration and is low cost. It supplies a stable amount of water to the cleaning nozzle regardless of the high or low supply pressure (water pressure), and can linearly adjust the amount of water in the cleaning nozzle from small to large, and has a constant flow rate. This makes maintenance such as valve replacement and cleaning easier, and at the same time maintains the supply pressure (
Regardless of the level of water pressure (water pressure), it is possible to create a waterway configuration with low water pressure.

Example An embodiment of the present invention will be described below based on the drawings.

Figure 1 is a schematic sectional view of a sanitary washing device according to an embodiment of the present invention, and Fig. 2 is an enlarged sectional view of a branch faucet in the sanitary washing device. 1 and 2, reference numeral 11 is a branch faucet connected to a water pipe 12 that communicates with a water source in a waterway manner, and this branch faucet 11 has an inlet 13 connected to the water pipe 12 and an inlet 13 connected to the water pipe 12. , an outlet 14 connected to a low tank (not shown), and an outlet 17 connected to a cleaning device main body 16 via a connecting pipe 15. In addition, the inlet 13
The outflow port 17 is connected to a water stop valve 18 located inside the branch faucet body.
It communicates with the constant flow valve 19 through the constant flow valve 19. The constant flow valve I9 is provided in the outlet 17, and includes a gasket 21 made of a rubber elastic body having a water passage hole 20 in the center, and a stepped hole portion 22 in the center to hold the gasket 21 inside. A packing housing 23 having a
A spring 26 biases the end face 24 and the cross-sectional contact portion 25 so that a gap of ΔL is formed, and a low water pressure water passage 2 is provided on the outer periphery of the packing housing 23 and communicates with the gap.
7 is formed. In addition, by screwing the water stop valve 18, a gasket 28 provided at the tip of the water stop valve 18
is configured to close the water channel to the constant flow valve 19 to stop the water supply, and the water supply to the cleaning device main body 16 is stopped. 29 is for stopping water leakage from the water stop valve 18,
This is a gasket interposed between the inner surface of the branch faucet 11 and the inner surface of the branch faucet 11. Further, the connecting pipe 15 is connected to a water supply section 30 provided outside the cleaning device main body 16, and the outlet 17 of the branch faucet 11 communicates with the water supply port 1 inside the cleaning device main body 16.

Inside the cleaning device main body 16, a water stop valve (electromagnetic valve) is provided downstream of the water supply port 1 communicating with the water supply section 30, and a waterway branch section 4 is provided downstream thereof. The waterway branching part 4 branches the waterway into the main waterway A side and the subwaterway B side, and can adjust the amount of water flowing to the subwaterway B side. That is, the branch case 4a has a cylindrical shape, and is provided with a water inlet part 4b connected to the secondary side of the water stop valve 3 at the bottom, and a water inlet part 4b connected to the secondary side of the water stop valve 3 at the outer periphery, for communicating with the main waterway A side and the subwaterway B side, respectively. Communication portions 4c and 4d are provided.

Reference numeral 5 denotes a flow rate adjustment cylinder housed in the branch case 4a, which has a hollow cylindrical shape and has an open bottom surface to allow the water inlet part 4 to flow.
A substantially triangular-shaped aperture hole 5a is provided on the outer periphery at a position corresponding to one of the communicating portions 4d. 5c is an O-ring, which prevents leakage to the outside and between the water channels. 5d is a flow rate adjustment knob provided integrally with the flow rate adjustment cylinder 5.

The characteristics of the flow control valve constituted by the flow control cylinder 5, the branch case 4a, etc. are as shown in FIG. 3(8) for the throttle hole 5a having the shape shown in FIG. 3(b). It has certain characteristics. That is, the flow rate adjustment knob 5
When the rotation angle θ of d is Oo, the flow rate Qn on the side of the sub-channel B
When the flow is 0.6 Q/++in and θ=180', the flow rate Qe on the side channel B side is OQ/win (closed state)
The characteristic is that Qn decreases in inverse proportion to the knob rotation angle θ. This characteristic is determined by the size and shape of the aperture hole 5a, which has a substantially triangular shape.

6 is a relief valve, which is interposed between the main waterway A side and the auxiliary waterway B side on the downstream side of the waterway branch part 4, and when the water pressure on the main waterway A side exceeds a predetermined pressure, a relief valve is provided. The relief valve piece 6b opens against the valve spring 6a, and the sub-channel B
This allows excess water pressure to escape to the side.

Reference numeral 7 denotes a hot water tank unit provided on the downstream side of the main waterway A, and is configured to heat water with a heater 7b and boil the hot water to a predetermined temperature with a hot water temperature sensor 7C. 8 is a local cleaning nozzle provided on the downstream side of the hot water tank unit 7. Reference numeral 9 denotes a discharge port provided at the most downstream side on the side of the sub-channel B, and is configured to discharge water to the toilet bowl 1o.

Next, the operation of the hot water cleaning device of this embodiment will be explained.

When a user turns on a cleaning switch (not shown), the water stop valve 3 is first opened, and water flows from the branch faucet 11 through the connecting pipe 15 to the water supply section 30 and the water supply port l. When the water supply pressure is relatively low (0.5 to 1.5 kgf/d>),
Due to the spring pressure of the spring 26 of the constant flow valve 19 provided in the outflow valve 7 of the branch faucet 11, the gasket housing 2
Since a gap ΔL is created between the end face 24 of the seal housing 23 and the end face abutting portion 25, the water flows in the direction indicated by the arrow through the low water pressure water passage 27 leading from the outer periphery of the seal housing 23 to the gap ΔL.
Further, it flows through the water passage 20 of the packing 21 in the direction of the arrow.

When the water supply pressure is high water pressure (1.5-8 kgf/aJ).

The gap ΔL formed by the spring 26 disappears, water flows only in the direction of the arrow from the water passage 20 of the packing 21, and the packing 21 is compressed from the primary side to the secondary side by the water pressure, and as a result, the packing 21 is compressed from the primary side to the secondary side by the water pressure. The diameter of the water passage 20 is adjusted according to the water pressure on the primary side so that a constant flow rate always flows. At this time, the primary side water pressure P of the constant flow valve 19
1 and the flow rate Qt flowing through the constant flow valve 19 has characteristics as shown in FIG. Here, the set flow rate Qt is set to 1.
A constant flow valve 19 is used so that the flow rate is 0 Q/min. Therefore, even if the water supply pressure changes from low water pressure to high water pressure, a flow rate of 1.0 (1/win) always flows after the constant flow valve 19.

The water that has flowed through the constant flow valve 19 provided in the outlet 17 of the branch faucet 11 passes through the connecting pipe 15, the water supply section 30, the water supply port 1, and the water stop valve 3, and returns to the main waterway A at the waterway branching section 4. It branches into the side and the sub-channel B side. The water flowing to the main waterway A side is transferred to the communication section 4c.
The water is then stored in the hot water tank unit 7 and becomes hot water.
The liquid is ejected from the private part cleaning nozzle 8 to clean the private parts of the human body. Further, the water flows to the side of the sub-channel B, passes through the throttle hole 5a, passes through the communication portion 4d, and is discharged from the discharge port 9 to the toilet bowl 10.

In addition, when the user turns the flow rate adjustment knob 5d,
The opening area of the sub-channel B side is varied by the approximately triangular-shaped throttle hole 5a provided in the flow rate adjustment cylinder 5, and as a result, the distribution ratio of the flow rate flowing to the main channel A side and the sub-channel B side is changed, and the local The flow rate ejected from the cleaning nozzle 8 can be adjusted. For example, if the user wants to clean the private area with a flow rate as low as 0.40/+*in, the user can rotate the flow rate adjustment knob 5d to open the throttle hole 5a on the sub-channel B side. This can be achieved by increasing the area and setting the flow rate QB flowing to the side of the sub-channel B to 0.6 Q/min. Conversely, the flow rate flowing to the private part cleaning nozzle 8 is reduced to 1
, OQ When you want to adjust to /win, turn the flow rate adjustment knob 5d @DI to turn the flow rate on the side waterway B side ON/win, that is, completely close it.

In this way, since the flow rate adjustment valve is provided on the side of the sub-channel B,
There is no need for a flow control valve or the like on the main waterway A side that would cause waterway loss, and as a result, even in a water pressure area where tap water pressure is lower than in conventional sanitary washing equipment, the local washing nozzle 8 can provide the desired amount of water. Cleaning flow rate Q Amax=1. OQ /+s
It is easy to obtain in.

In addition, since the constant flow valve 19 is provided in the outlet 17 of the branch faucet 11 located on the most upstream side, even if the constant flow valve 19 deteriorates or becomes clogged, the connecting pipe 15 and the branch water Maintenance such as replacement and cleaning can be easily performed by simply disconnecting the connection part of the stopper 11.

Furthermore, regardless of the level of the supply pressure (water pressure), the piping in the cleaning device main body 16 can be configured to have a water channel structure (for example, rubber platform piping, etc.) for low water pressure.

Further, according to this embodiment, a stable amount of water can be supplied to the private part cleaning nozzle 8 regardless of the level of supply pressure (water pressure) with a simple configuration and low cost, and hot water can be spouted from the private part cleaning nozzle 8. The flow rate can be adjusted linearly from small to large.

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

(1) A constant flow valve is installed in the branch faucet located on the most upstream side, so even if the constant flow valve deteriorates or becomes clogged, you can simply disconnect the connection between the connecting pipe and the branch faucet. ,
Maintenance such as replacement and cleaning can be easily performed.

(2) The piping inside the cleaning device main body can be configured to have a low water pressure waterway structure (for example, rubber hose piping, etc.) regardless of the level of supply pressure (water pressure).

(3) With a simple configuration and low cost, it supplies a stable amount of water to the private area cleaning nozzle regardless of the high or low supply pressure (water pressure), and the flow rate of hot water spouted from the private area cleaning nozzle is linear from small to large. can be adjusted to

[Brief explanation of drawings]

Fig. 1 is a schematic sectional view of a sanitary washing device showing an embodiment of the present invention, Fig. 2 is an enlarged sectional view of a branch faucet of the sanitary washing device, and Fig. 3 (a) and (b) are the same sanitary washing equipment. A graph showing the flow rate adjustment characteristics of the device and a diagram showing the outline shape of the throttle hole 5a corresponding to the flow rate adjustment knob, Figure 4 is a graph showing the characteristics of the constant flow valve adopted in the sanitary cleaning device, and Figure 5 is the conventional one. FIG. 6 is a schematic cross-sectional view of a pressure reducing valve type sanitary washing apparatus, and FIG. 6 is a schematic configuration diagram of a conventional constant flow valve type sanitary washing apparatus. Construction: Water supply port, 3: Water stop valve, 4: Waterway branch, 4a: Branch case, 4c: Main waterway A, 4d.
...Sub-channel B, 5...Flow rate adjustment cylinder, 5a...
Throttle hole, 6... Relief valve, 7... Hot water tank unit, 8... Local cleaning nozzle, 9... Water spout, 11
... Branch faucet, 13... Inlet, 15... Connecting pipe, 16... Cleaning device main body, 17... Outlet, 18...
...Water stop valve, I9...Constant flow valve, 20...Water hole. 21...Packkin, 23...Packkin housing,
26...Spring, 27...Low water pressure water passage, Δ
L...Gap.

Claims (1)

[Scope of Claims] 1. A branch faucet connected to a water supply pipe, a connecting pipe connecting the outlet of the branch faucet to a water supply port of a cleaning device body for cleaning private parts of the human body, and the cleaning device body A water stop valve provided on the downstream side of the water supply inlet, a waterway branch section provided on the downstream side of this water stop valve, a main waterway leading to a local cleaning nozzle connected to one of this waterway branching section, and the waterway. A sub-channel leading to a discharge port connected to the other side of the branch, a flow rate control valve provided corresponding to the sub-channel at the branch of the water channel, and a flow control valve provided when the water pressure on the main channel side becomes higher than a predetermined water pressure. A sanitary washing device comprising: a relief valve that opens the main waterway side to the subwaterway side; and a constant flow valve provided in the branch faucet located on the most upstream side. 2. The branch faucet has a constant flow valve inside, and this constant flow valve is provided in the outlet of the branch faucet that communicates with the cleaning device main body via a connecting pipe, and is made of a rubber elastic body. It is equipped with a packing having a passageway in the center and a passageway for low water pressure formed around the outer periphery of this packing.
kgf/cm^2), water flows through both the water passageway and the low water pressure passageway, and at high water pressure (1.5 to 8kgf/cm^2), the low water pressure passageway is closed by the water pressure, and water flows inside the packing. 2. The sanitary washing device according to claim 1, wherein the water passage is compressively deformed in response to water pressure, thereby controlling the amount of water flowing through the secondary side of the constant flow valve to a constant value.