JP2669467B2 - Cleaning water supply device to local cleaning device - Google Patents

Description

TECHNICAL FIELD The present invention relates to a cleaning water supply device for a local cleaning device.

(B) Conventional technology Conventionally, as one form of cleaning water supply device to a local cleaning device, a mixed hot and cold water flow passage is connected and connected downstream of a temperature control valve that is connected and connected to a water supply source and a hot water supply source. In some cases, an injection nozzle is provided at the tip of a water flow path.

Then, at the time of use, the operation output is sent to the controller by the operation of the cleaning switch, the temperature control valve is driven by the controller to generate mixed hot and cold water having an appropriate temperature, and the hot and cold mixed water is jetted from the jet nozzle toward the local area,
Local cleaning is being performed.

(C) Problems to be solved by the invention However, in such a cleaning water supply device for a local cleaning device, the amount of mixed hot water required for one local cleaning operation is, for example, 0.5 / min to 1.5 / min. And an extremely small amount.

Therefore, it is not possible to accurately perform the appropriate temperature control as in the case of a large amount of hot water such as hot water from a bathtub, hot water from a shower, or hot water from a shower.

That is, when the amount of hot water discharged is large, as in the case of hot water discharged from a bathtub, the amount of water and the amount of hot water to be mixed by the temperature control valve are large, so the valve of the hot water adjustment valve and the water side adjustment valve that constitute the temperature adjustment valve The opening degree and the amount of hot water or the amount of water can be proportionally changed, and the appropriate temperature control can be performed relatively easily.

However, in the case of tap water with a small flow rate such as supply to the local cleaning device, the valve opening degree of the hot water side adjusting valve and the water side adjusting valve constituting the temperature adjusting valve and the hot water amount or the water amount are proportionally set. It is difficult to change the temperature, so that the proper temperature control cannot be performed precisely, and the user is uncomfortable.

It should be noted that if the valve structure and the control device for controlling the valve structure are made high-grade, it is possible to perform accurate temperature control accurately, but in this case, the cleaning water supply device for the local cleaning device becomes extremely expensive. Will be done.

Furthermore, with a temperature control valve installed to supply a large amount of mixed hot and cold water such as a bathtub or shower, it is difficult to control the optimum temperature of the minute flow rate desired in the local cleaning device.

An object of the present invention is to provide a cleaning water supply device for a local cleaning device that can solve the above problems.

(D) Means for Solving the Problems The present invention is a local cleaning in which mixed hot and cold water of appropriate temperature is generated by a temperature control valve, and the mixed hot and cold water is supplied as cleaning water to a local cleaning device through a local cleaning device flow path. In the flush water supply device to the apparatus, a drainage flow channel branched from the local flushing device flow path, and a constant flow valve provided in the drainage flow channel, further, the local cleaning flow channel, upstream side One of a plurality of flow paths communicating via a flow rate adjusting / stopping / switching valve is formed on the downstream side of the hot water supply flow path communicating with the temperature control valve. The present invention relates to a cleaning water supply device.

(E) Action and Effect With the above-described configuration, the present invention has the following effects.

In the present invention, the local cleaning device is one of a plurality of flow passages that are in communication with each other through the flow rate adjusting / stopping / switching valve on the downstream side of the hot water supply passage that communicates with the temperature adjusting valve on the upstream side. By using a single temperature control valve, not only can the temperature control of the local cleaning device be controlled appropriately, but also the temperature control of other locations can be precisely controlled, and the waste water flow channel branched from the local cleaning device flow channel can be used. And a constant flow valve provided in the same waste water flow path, it is possible to quantitatively supply a large flow rate of mixed hot and cold water to the temperature control valve, without using a high-grade control device. It is possible to easily and precisely perform the mixing operation of the amount of hot water and the amount of water by the hot water side flow rate adjusting valve and the water side flow rate adjusting valve constituting the above.

(F) Examples Hereinafter, the present invention will be specifically described based on Examples shown in the accompanying drawings.

FIG. 1 shows a conceptual overall configuration of an automatic hot water supply apparatus A including a cleaning water supply apparatus for a local cleaning apparatus according to the present invention. In the figure, 10 and 11 are a hot water flow path and a water side flow. The channels 10 and 11 are provided with pressure regulating valves 10a and 11a, a pressure balancing valve E and flow rate regulating valves 12 and 13 that balance the pressures of the hot and cold water to facilitate mixed hot water adjustment. ing.

A valve driving device 1 such as a motor is provided between the two flow paths 10 and 11.
4, the valve drive device 14 can drive / open / close the flow rate adjusting valves 12 and 13 to flow the mixed hot water into the mixed hot water flow passage (hot water supply flow passage) 15 located on the downstream side. At the same time, the temperature can be adjusted by changing the valve opening / closing degree to change the mixing ratio of hot water and water.

In the above configuration, the temperature control valve B is formed by the flow control valves 12, 13 and the valve driving device 14.

Further, on the downstream side of the mixed hot and cold water flow path 15, from the side close to the temperature control valve B to the distant side, respectively, a local cleaning device flow path 16 and a shower / Karan flow path 19 (the same flow path).
Reference numeral 19 is branched into a Karan flow passage 19a and a shower flow passage 10b via a flow rate adjusting / water shutoff / switching valve 20), a bath passage 18 and a wash passage 17.

Then, the local cleaning device channel 16, the wash channel 17, the bath channel 18, the Karan channel 19a, and the shower channel 19b are a local cleaning device 21, a washbasin 22, and a bath 23, respectively. The mixed hot and cold water can be supplied to the shower head 24.

Further, in the above flow path configuration, the local cleaning device flow path 16
Flow rate adjusting valves 25, 26, and 27 are attached to the wash passage 17 and the bath passage 18, respectively.

The flow rate adjusting / water shutoff / switching valve 20 and the flow rate adjusting valves 25, 26, 27 are valve drive devices 20a, 25a, 26a, such as motors.
Driven by 27a, the local hot water washing device 21, the washbasin 22, the bathtub and the shower 24, the flow path selection and flow rate adjustment in each flow path, and further, the water shutoff that cuts off the communication connection to all the flow paths. It can be carried out.

The flow control / water stop / switch valve 20 and the flow control valve
25, 26, 27 and the valve drive devices 20a, 25a, 26a, 27a form a flow rate adjusting / water shutoff / switching valve C.

Further, in FIG. 1, 28 is a mixed hot and cold water temperature sensor provided on the upstream side of the mixed hot and cold water flow passage 15,
Detects the temperature value Tm
Based on the temperature deviation value between the mixed hot and cold water detection temperature value Tm and the mixed hot and cold water set temperature value Ts, the control device D, which will be described later, performs PID control, generates an appropriate drive output, and drives the temperature control valve B. By driving, the temperature of the mixed hot and cold water can be adjusted.

Further, 29 is a mixed hot water flow sensor provided in the local cleaning device flow path 16, detects the mixed hot water detection flow rate value Qm of the mixed hot water flowing in the local cleaning device flow path 16, and the mixed hot water detection flow value Qm. Based on the flow rate deviation value from the mixed hot water set value Qs, in addition to the temperature adjustment control based on the temperature deviation value described above,
The control device D generates an appropriate drive output to generate the flow control valve 25.
Can be driven, and the flow rate can be adjusted by the drive.

Further, 30 is a mixed hot and cold water flow rate sensor provided in the bathtub flow path 18, detects the mixed hot and cold water detection flow rate value Qm of the mixed hot and cold water flowing in the bathtub flow path 18, and the mixed hot and cold water detection flow rate value Qm and the mixed hot and cold water set amount. Based on the flow rate deviation value with the value Qs, in addition to the temperature adjustment control based on the above-mentioned mixing deviation value, the control device D generates an appropriate drive output to drive the flow rate adjusting valve 27, and by the drive, The flow rate can be adjusted.

Further, 31 is a mixed hot and cold water flow sensor provided in the shower / calan flow path 19, which detects the mixed hot and cold water detection flow rate value Qm of the mixed hot and cold water flowing in the flow path 19 and detects the mixed hot and cold water flow rate value Qm.
In addition to the temperature adjustment control based on the temperature deviation value described above, based on the flow rate deviation value between the mixed hot and cold water set value Qs and the controller D, the controller D generates an appropriate drive output to adjust the flow rate, stop the water flow, and switch the water flow. By driving the valve 20, the flow rate can be adjusted by the driving.

Further, as shown in FIG. 1, the control unit D includes a microprocessor MPU, input / output interfaces 35 and 36, and an RO.
The memory 38 is composed of M and RAM, and the memory 38 includes output signals from the various sensors 28, 29, 30, 31 described above and various controllers 40, 41, 42 described below. The temperature control valve B and the flow rate control /
A valve drive sequence program for driving the water shutoff / switching valve C is stored, and hot water discharge conditions at the time of switching the flow path and the like can be stored.

That is, in FIG. 1, reference numeral 40 denotes a controller for a local cleaning device which is installed in the vicinity of a flush toilet equipped with the local cleaning device 21, and which supports the condition for spraying the cleaning water from the spray nozzle to the local area such as the buttocks, 41 Is a controller for the washbasin that is installed near the washbasin 22 and supports the tapping condition from the discharge fittings to the washbasin 22, and 42 is installed in the bathroom or kitchen, and the bathtub 23
This is a bathtub controller that indicates the conditions for tapping into the bath.
Is a controller for a shower / calan that is installed in the bathroom washroom and indicates the condition of tap water to the shower 24 and the calan 24a.

Then, by operating these controllers 40, 41, 42, 43, a predetermined drive signal or control signal is sent to the control device D, and based on the drive signal, the temperature control valve B and the flow rate adjustment / water stoppage are provided. -The switching valve C can be driven.

The present invention is substantially characterized in that in the above-mentioned configuration, the appropriate temperature control of the mixed hot water to the local cleaning device 21 is precisely performed.

That is, as shown in FIG. 1, the waste water flow passage 50 is branched from the downstream side portion of the flow rate adjusting valve 25 of the local cleaning device flow passage 16, and the tip of the waste water flow passage 50 is located inside the local cleaning device 21. It is open to.

Further, a constant flow valve 51 is attached in the middle of the waste water flow passage 50.

With this configuration, a small amount of cleaning water (for example, 0.5 / min to 1.5 / min) required by the local cleaning device 21 can be supplied into the local cleaning device 21 through the downstream of the local cleaning device flow path 16. At the same time, a large amount of mixed hot and cold water can be quantitatively drained into the local cleaning device 21 through the drainage channel 50.

Therefore, the hot-water-side flow control valve constituting the temperature control valve B
The amount of hot water and the amount of water controlled by 12 and the water side regulating valve 13 can also be set to a large flow rate, and the mixing operation in the temperature control valve B, that is, the appropriate temperature control can be performed easily and precisely without using a high-grade control device or the like. In this case, the wash water having an appropriate temperature can be sprayed toward the local area.

Further, in this embodiment, the local cleaning device flow path 16,
A single temperature adjustment is made because one of a plurality of flow paths communicating via the flow rate adjustment / water cutoff / switching valve C is provided on the downstream side of the hot water supply flow path communicating the upstream side with the temperature adjustment valve B. By using the valve B, not only the appropriate temperature control of the local cleaning device but also the appropriate temperature control of other places of use can be precisely performed.

As the constant flow valve 51, various types can be used, and for example, the constant flow valve described in JP-B-51-23059 can be used.

Next, an automatic hot water supply operation by the automatic hot water supply device A having the above configuration will be described with reference to FIGS. 1 to 3.

Incidentally, FIG. 2 shows an operation sequence when the bathtub 23 is filled with hot water, and FIG. 3 shows a subroutine when the local cleaning operation is preferentially performed.

In FIG. 2, after pressing the power switch (100),
The amount of hot water filling the bathtub 23 is set by pressing the hot water amount setting switch of the bathtub controller 42 (101).

Next, the temperature of the mixed hot water discharged to the bath 23
Press the hot water temperature setting switch of the bath controller 42 to set (103).

After confirming the above operation, the automatic hot water supply switch is pressed to drive the temperature control valve B to produce a mixed hot water having an appropriate temperature, and the flow rate control valve 27 is opened to supply the mixed hot water into the bath 23 through the bath passage 18. Perform hot water filling (106).

The amount of hot water discharged is counted and integrated by an integrating counter (107), and the temperature control valve B is controlled at an appropriate temperature by PTD control or the like (108).

In the appropriate temperature control (108), the automatic hot water supply display lamp, the set hot water amount display lamp and the set hot water temperature display lamp provided in the bathtub controller 43 are turned on (109).

When the accumulated hot water amount counted by the counter reaches the set hot water amount, it is considered that hot water filling has been completed (110Y), the flow rate adjustment valve 27 is stopped, and the bath OK lamp and bath OK buzzer sound and bathing is possible. To the user (110).

On the other hand, when the cumulative amount of hot water counted by the counter does not reach the set amount of hot water (110N), steps (107) to (110) are repeated until it reaches.

In this operation sequence, if it is desired to supply the mixed hot and cold water to the local cleaning device flow path 16 midway, the operation procedure shown in FIG. 3 is interrupted in the middle of the operation procedure shown in FIG.
Based on the same operation procedure, the local cleaning operation is preferentially advanced for the local cleaning priority operation time t ₁ .

That is, in FIG. 3, when the user sits on the local cleaning device 21 while the bathtub is filled with hot water (120), the seating detection means including an infrared sensor, a pyroelectric sensor, a micro switch, a load cell, etc. is turned on (121).

Based on this ON signal, the control device D sets the bathtub flow path 18
The hot water filling conditions (eg, set temperature, integrated flow rate, etc.) are stored (122), and the valve drive device 27a is driven to close the hot water filling flow rate adjusting valve 27 and stop the hot water filling operation (123). ).

Then, the temperature of the mixed hot and cold water is detected by the mixed hot and cold water temperature sensor 28, and when the temperature is lower than the local cleaning set temperature value (124N),
Drain the water (125) and continue the same operation until the local cleaning set temperature value is reached.

When the measured temperature value of the mixed hot water reaches the local cleaning set temperature value (124Y), the local cleaning switch is turned on to drive the valve drive device 25a (126), and the flow rate adjusting valve 25 is opened (127). The mixed hot and cold water is supplied to the local cleaning device 21 to clean the local area.

If the local cleaning switch is turned off after sufficiently cleaning the local part (128), the valve drive device 25a is stopped and the flow rate adjusting valve 25 is closed (129). Therefore, the supply of the mixed hot water to the local hot water cleaning device 21 is stopped, and the cleaning operation is completed.

Next, when the user stands up from the local cleaning device 21, the seating detection means outputs an off output (130), and by the off output,
The control device D reads out the hot water filling conditions (for example, set temperature, integrated flow rate, etc.) in the bathtub flow path 18 stored in the step (122) (131), and opens the flow rate adjusting valve 27 by the valve drive device 27a. , The hot water filling operation for the mixed hot water bath 23 is continued (133).

Then, in such an operation procedure, as described above,
In this embodiment, since the drainage passage 50 including the constant flow valve 51 is provided in the local cleaning device flow path 16, the temperature control valve B including the hot water flow rate control valve 12 and the water flow control valve 13 is provided. A large amount of hot water and water can be made to flow into the chamber to generate mixed hot and cold water, and a minute flow rate is desired by the temperature control valve B designed to supply a large flow of mixed hot and cold water to the bathtub 23, the shower head 24, etc. Even when it is supplied to the local cleaning device 21 of the above, it is possible to more accurately control the mixing ratio of the mixed hot water, that is, the appropriate temperature control, and the appropriate temperature of the cleaning water is supplied to the local cleaning device.
It is possible to inject and wash from 21 injection nozzles toward a local area, and it is possible to improve the user's feeling of use.

[Brief description of the drawings]

FIG. 1 is a conceptual configuration explanatory view of an automatic hot water supply apparatus including a cleaning water supply apparatus for a local cleaning apparatus according to the present invention, and FIG. 2 is a flowchart showing an operation sequence of hot water filling operation in the automatic water supply apparatus, FIG. 3 is a flowchart showing the operation sequence of the local cleaning operation. In the figure, A: Automatic hot water supply device B: Temperature control valve C: Flow rate control / stop / switch valve D: Control device E: Pressure balancing valve 16: Local cleaning device flow path, 17: Wash surface flow path 18: Bath flow path 19: Shower / Karan flow path 21: Local cleaning device, 22: Washbasin 23: Bathtub, 24: Shower 24a: Karan

Claims (1)

(57) [Claims] 1. A local cleaning device for generating mixed hot and cold water of an appropriate temperature by a temperature control valve (B) and supplying the mixed hot and cold water as cleaning water to a local cleaning device (21) through a local cleaning device flow path (16). In the washing water supply device to the drainage channel (5) that branches from the local washing device channel (16).
0) and a constant flow valve (51) provided in the same waste water flow path (50), and the local cleaning flow path (16) communicates the upstream side with the temperature control valve (B). Cleaning to a local cleaning device, characterized in that one flow path among a plurality of flow paths communicating with each other through a flow rate adjusting / water blocking / switching valve (C) is formed on the downstream side of the hot water supply flow path (15). Water supply device.