JP3098564B2 - Sanitary washing device and residual water treatment method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a technique for controlling a sanitary washing apparatus which mixes hot water and water at the time of washing an anus or a bidet and discharges hot water adjusted to an appropriate temperature to wash a local area. The present invention relates to a sanitary washing device having a function of discharging residual water in a water passage immediately before discharge and a method for treating the residual water.

[0002]

2. Description of the Related Art In a sanitary washing apparatus such as a hotel facility having a hot water washing function such as anal washing and bidet washing, hot water and water are supplied to the apparatus by piping from other equipment. In order to perform the local cleaning function with comfortable hot water, which is a function, the water supply and hot water supply equipment are operated normally so that the temperature of the cleaning hot water discharged by mixing and adjusting the water and hot water is stably maintained within a predetermined range. It is necessary. Further, it is necessary to perform a control operation so that the hot water for washing the local area is stably maintained in a comfortable temperature range. Therefore,
In this type of sanitary washing device, after the user sits down so that the hot water supply temperature exceeds 42 ° C., the hot water is discharged from the pipe until the hot water temperature reaches 42 ° C .; After cooling the water, the cooled water is discharged from the pipeline, and the “residual water treatment operation” is continued until the discharged hot water temperature reaches a predetermined temperature, and the apparatus stands by in preparation for water discharge during washing. ing.

[0003]

However, the temperature of the hot water in the pipes decreases with time even if the apparatus is in a ready state in order to discharge water at a predetermined temperature. The configuration has a problem that a temperature in a comfortable range of the discharged cleaning hot water cannot be obtained.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and has an object to provide a sanitary washing apparatus and a residual water treatment method capable of always washing at a comfortable hot water temperature regardless of the time from sitting to washing. It is intended to be advocated.

[0005]

According to the present invention, there is provided a method for treating residual water in a sanitary washing apparatus, which comprises mixing and discharging water and hot water supplied to the apparatus and discharging the mixed water, such as anal cleaning and bidet cleaning. In order to perform the "discharging operation" of discharging hot water in the pipe until the hot water supplied from the apparatus has a constant hot water temperature, and to stably maintain the temperature of the discharged cleaning hot water in a predetermined range. In a sanitary washing apparatus configured to perform a "pre-wash / residual water treatment operation" in which hot water in a water discharge pipe is discharged through a nozzle pre-wash line until the temperature of the mixed hot water reaches a constant hot water temperature, A pre-wash water temperature detecting means is provided at a position near the nozzle in the water discharge pipe provided with the cleaning / residual water treatment means, and the pipe is connected by the pre-clean / residual water treatment means until the temperature in the water discharge pipe reaches a preset temperature. Overflow of residual water inside and cleaning and discharging While waiting, the standby time is counted by the standby time control means, and when the standby time exceeds a preset time, or when the hot water temperature from the pre-cleaning water temperature detecting means provided in the pipe is equal to or less than a preset value. When the water temperature drops to a lower value, the water removal operation is repeatedly performed to maintain the water temperature in the discharge pipe after the user is seated within a set range. Further, the sanitary washing device according to the present invention, a discharge flow path performing a discharge operation of discharging cleaning water obtained by mixing and adjusting water supply and hot water supply from a nozzle to a human body local part,
In order to stably maintain the temperature of the wash water discharged from the discharge flow path within a predetermined range and adjust the flow rate of the wash water, the supply hot water in the water discharge flow path until the temperature of the mixed hot water becomes a constant hot water temperature. Hot water ON / OFF control means for discharging water, and a discharge flow path for branching from the discharge flow path and performing a discharge operation for discharging the supplied cleaning water immediately before the nozzle without using the supplied cleaning water for local human body cleaning. The standby time control means counts the time during which the discharge channel is not performing the discharge operation,
When the counted time reaches a predetermined value and it is determined that the discharging operation by the discharging flow path is necessary, there may be provided a means for performing the discharging operation in the discharging flow path.

[0006]

Therefore, when the user sits on the toilet seat and hot water is supplied at a predetermined temperature set in advance, the hot water is collected in the water discharge pipe by the pre-cleaning / residual water treatment means (discharge flow path / discharge flow path). An operation of overflowing the cooled water as washing water for the nozzles is performed, and waits for spouting washing. This standby time is counted by the standby time control means (execution means),
When the count time exceeds a preset time (for example, 5 minutes), or when the hot water temperature detected by the pre-cleaning water temperature detecting means falls below a preset value (for example, 41 ° C.). Then, the hot water removal operation is performed again to remove the cold water accumulated in the water discharge pipe, and wait for water discharge cleaning. As a result, after the user is seated, the temperature of the water in the water discharge pipe is maintained within a certain range, and it is guaranteed that the washing is always performed with a comfortable hot water temperature.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of a sanitary washing apparatus and a method for treating residual water according to the present invention will be described below with reference to FIGS.

FIG. 1 shows a configuration of a piping system of a sanitary washing apparatus having a functional device for carrying out the present invention. Reference numeral 1 denotes a local washing nozzle provided in a main body A. The nozzle 1 has a structure in which it is displaced and driven to a predetermined use position (anal cleaning and bidet cleaning) and a storage position by a nozzle motor 2, and a rear end of the nozzle 1 communicating with a discharge hole for discharging cleaning hot water. Is connected to the subsequent stage of the solenoid valve 4 of the valve unit C formed in the function part B via the check valve 3 branched from the overflow e pipe, and the pipe temperature T3 is connected to the pipe communicating with the nozzle 1. And a temperature limiter thermistor sensor 5 for monitoring the temperature of the discharged water d.

The thermovalve 6 of the temperature control system constituting the electronic valve unit D of the functional section B is operated by a mixing motor 7 driven by a control signal from a thermovalve control means 19, which will be described later. The secondary side water supply temperature communicating with the C solenoid valve 4 is controlled to a preset temperature (42 ° C.). The secondary side water discharge pipe 17 is provided with a temperature control thermistor sensor 8. It is provided. The thermovalve 6 of the electronic valve unit D supplies water and hot water from the external equipment of the present apparatus to the primary side, and the water supply pipe a communicates with the strainer-equipped check valve 9 and the pressure reducing valve 10. On the other hand, the hot water supply pipe b is connected through a check valve 11 with a strainer and a pressure reducing valve 12 and communicates with a hot water discharge solenoid valve 13 provided in the valve unit C. A thermistor sensor 14 for controlling hot water is provided in the branch line. The secondary side of the solenoid valve 13 for hot water is connected to a drainage pipe c communicating with a secondary pipe of the throttle valve 15 provided in the valve unit C.
The throttle valve 15 is provided so as to branch off from the check valve 3 provided at the subsequent stage of the solenoid valve 4 and a pipe line. The throttle valve 15 controls the amount of water flowing to the drainage pipe c by the flow rate adjusting motor 16 and flows through the nozzle 1. The structure is such that the flow rate of washing hot water is adjusted. That is, the book
The sanitary washing device according to the present invention is characterized in that the supplied washing water is supplied to a human body part.
A discharge flow path for discharging to, and branching from the discharge flow path,
Discharges the supplied washing water without using it for cleaning the human body.
Flow path for performing a discharge operation, and discharge by the discharge flow path
After the operation is completed, it is determined whether the next discharging operation is necessary.
To discharge to the discharge channel when it is judged necessary.
And an execution means for automatically executing the process.

FIG. 2 shows the present apparatus for controlling and driving the above piping system.
3 is a block diagram showing the configuration of the control system of FIG. Previous
Opening / closing control of the hot water solenoid valve 13Become a means of executionHot water
The ON / OFF control means 21 is a thermo-valve control means 1
The opening is controlled by 9 and it is configured at the toilet seat position of the main unit A.
Control by the "seated" signal from the seated detecting means 20
The operation starts, and the thermistor sensor
Temperature information "42"
ON drive by “less than ° C”. This hot water ON / OF
The F control means 21 determines the time t1 from the ON drive as a hot water discharge time.
The water temperature counted by the control means 23 and connected to the subsequent stage
The failure determination means 24 determines that the time t1 is a predetermined time.
(For example, 2 minutes)
Signal, and this signal turns ON / OFF
The control means 21 drives the solenoid valve for hot water 13 to "OFF".
Works as follows. And if the time t1 does not exceed 2 minutes
If it is normal, it is determined to be “normal” and the pre-washing / residual water treatment means 2
5 is performed. This pre-cleaning / residual water treatment means 25 is discarded.
"Waste water treatment" by hot water ON / OFF control means 21 ends
Thereafter, the solenoid valve 4 is opened for a certain time t2 (for example, 7 seconds).
Clean the nozzle 1 and place it in the pipe
The cold residual water flows out and warms the inside of the piping.
The time t2 from the ON drive of the purification / residual water treatment means 25 is
Structured to count by cleaning time control means 26
I have. The pre-cleaning time control means 26 determines that a predetermined time t
When the process is completed in step 2, the washing / water discharging means 29 in the subsequent stage is set to a standby state.
Maintain and input the washing signal of “butt washing” or “bite washing”
Operate after input of "water discharge signal" from force means 28
It has a structure. At this time, the pre-cleaning and residual water treatment means 2
5. When the overflow by 5 has been completed,
"Water spouting signal" from the washing signal input means 28 of "bide washing"
The standby time t3 until the input is input is determined by the standby time control means 3.
Counting by 0, the standby time t3 is set in advance.
If the elapsed time (e.g., 5 minutes) exceeds
Means for controlling the waste water ON / OFF control
21 constitutes a residual water treatment system driven.That is,
The hot water ON / OFF control means 21 serving as a running means
Counts the time during which the discharge operation is not
Predetermined time for counting When this discharge channel
Is determined to be necessary.
In addition, the residual water treatment method of the above-described embodiment is described as follows.
The “water temperature drop” is determined by the standby time control means 30 to be the standby time t
Judgment by the structure that measures 3
Although the one that drives the F control means 21 is shown, it is shown in FIG.
As described above, the pre-wash water temperature detecting means 27 provided in the water discharge pipe 17
"Temperature drop in water discharge pipe 17"
Configuration for re-driving the hot water ON / OFF control means 21
It is also possible toYou. That is, the temperature of the washing water supplied
The temperature is detected by the pre-wash water temperature detecting means 27, and the detected temperature is
When the pressure is below the predetermined value, operation by the discharge channel is necessary.
It judges that there is, and drives the hot water ON / OFF control means 21
It can be configured to be.Furthermore, both structures will be installed
It goes without saying that you can also do it.

Next, the operation of the residual water treatment method in the sanitary washing device having the above configuration is shown in FIG. 3 which is an operation flow chart of the entire sanitary washing device (the residual water treatment method is a portion surrounded by a broken line R). 4 will be described with reference to the timing chart shown in FIG. 4 (FIG. 4A shows a case where the cleaning operation is not performed within a prescribed time period, and FIG. 4B shows a case where the temperature in the water discharge pipe 17 falls below a prescribed temperature). (1) The user's sitting is sensed by the seating detecting means 20 configured at the toilet seat position. (2) Until the temperature of the hot water is detected as 42 ° C., the solenoid valve 13 for hot water is opened to perform “hot water”. At this time, if the temperature does not reach 42 ° C. within the preset time t1 (two minutes), it is determined that “the external hot water supply equipment has failed” and the hot water removal operation is stopped. (3) After the operation of (2) above, the thermovalve 6 of the electronic valve unit D is set to the temperature control position set at the time of the previous use (at this time, the first time the power is turned on, the first time the power is turned on) Set to position). (4) At the same time as the operation (3), the nozzle 1 is substantially
To extend the water by 5 mm, the water force is adjusted by setting the throttle valve 15 at the minimum water discharge amount position by the flow rate control motor 16, and after the setting operation is completed, the water discharge electromagnetic valve 4 is opened, and the pre-cleaning is performed for 7 seconds (t2). At this time, the electronic valve unit D controls and drives the mixing motor 7 to control the temperature of the thermovalve 6, and is adjusted and controlled to the set temperature. (5) After the above operation (4) is completed, the nozzle 1 is housed, and the water force is adjusted by setting the throttle valve 15 to the maximum discharge amount position by the flow rate adjusting motor 16 and the washing signal input means 26 is set after the water force is set. Waiting for the reception of the "butt washing" and "bidet washing" switches. (6) If the “backwash” or “bidewash” switch is not pressed for 5 minutes during the reception standby state, the thermo valve 6 of the electronic valve unit D is fully opened to the water side by the mixing motor 7 and the above (2). The operation is performed. (7) After the operation (6) is completed, the thermovalve 6 of the electronic valve unit D is set to the temperature control position previously adjusted by the operation (4), and then the operation (6) is performed. (8) When the seating detection unit 20 detects that the user is not seated, the following operation is performed. (9) If the “butt cleaning” or “bidet cleaning” is being performed during the cleaning operation, the operation is stopped and the same mode as when the “stop” switch is pressed is set. (10) In the water force adjustment, the flow control motor 16 is driven to set the throttle valve 15 to the maximum water discharge amount position. (11) The thermo valve 6 of the electronic valve unit D
Fully open to the water side.

[0012]

The sanitary washing apparatus and the residual water treatment method according to the present invention are configured as described above, so that the apparatus is stopped in the water discharge pipe so as to obtain a comfortable water discharge temperature (for example, 42 ° C.). In a device that performs a `` discharge operation '' that discharges cold water, in a standby state when water discharge preparation is completed, when a preset time is exceeded, or when the water temperature of the water discharge pipe falls below a preset temperature Since the hot water discharge operation of discharging the cold water in the pipe is repeated, a comfortable water discharge temperature can always be secured, and the effect of the present invention is extremely large.

[Brief description of the drawings]

FIG. 1 is an apparatus piping diagram showing a configuration of a sanitary washing apparatus and a residual water treatment method according to the present invention.

FIG. 2 is a block diagram showing the control system.

FIG. 3 is an operation flowchart showing a control method of the apparatus.

FIG. 4 is a timing chart showing control driving of the device. (A) when the cleaning operation is not performed within the specified time,
(B) shows a case where the temperature in the water discharge pipe has dropped below a specified temperature.

[Explanation of symbols]

 A body part B function part C valve unit D electronic valve unit 1 nozzle 2 nozzle motor 3 check valve 4 solenoid valve 5 temperature limiter thermistor sensor 6 thermo valve 7 mixing motor 8 temperature control thermistor sensor 9,11 check valve 10, DESCRIPTION OF SYMBOLS 12 Pressure reducing valve 13 Electromagnetic valve for hot water disposal 14 Thermistor sensor for hot water control 15 Throttle valve 16 Flow control motor 17 Water discharge pipe 19 Thermo valve control means 20 Seating detection means 21 Hot water ON / OFF control means 22 Hot water temperature detection means 23 Hot water time control means 24 Hot water temperature failure judgment means 25 Pre-wash / residual water treatment means 26 Pre-wash time control means 27 Pre-wash water temperature detection means 28 Wash signal input means 29 Wash water discharge means 30 Stand-by time control means a Water supply pipe b Hot water supply Piping c Drainage pipe d Water discharge e Overflow

Continued on the front page (72) Inventor Akio Fujii 5-1-1, Kushimihigashi, Kokuraminami-ku, Kokura-minami-ku, Kitakyushu-shi, Fukuoka Tochiki Equipment Co., Ltd. Kokura No. 2 Factory (72) Inventor Toshihiro Fukuda, Kokura-minami-ku, Kitakyushu-shi, Fukuoka 5-1-1 Kuchiamihigashi Togaku Kikai Co., Ltd. Ogura No. 2 Factory (56) References JP-A-2-178438 (JP, A) JP-A-2-204542 (JP, A) Jpn. 69075 (JP, U) (58) Field surveyed (Int. Cl. ⁷ , DB name) E03D 9/00-9/16

Claims (2)

(57) [Claims] 1. A method of mixing and discharging water and hot water supplied to an apparatus, and having a hot water cleaning function such as anal cleaning and bidet cleaning, until the hot water supplied from the apparatus reaches a constant hot water temperature. While performing the "hot water operation" to discharge the hot water in the piping,
In order to stably maintain the temperature of the discharged cleaning hot water within a predetermined range, the hot water in the water discharge pipe is discharged through the nozzle front cleaning pipe until the temperature of the mixed hot water reaches a constant temperature.
A sanitary washing device configured to perform a `` residual water treatment operation '', wherein a pre-wash water temperature detecting means is provided at a position near a nozzle in the water discharge pipe provided with the pre-wash / residual water treatment means, Until the temperature in the water discharge pipe reaches a preset temperature by the processing means, the residual water in the pipe overflows and the washing and discharging are waited, and the standby time is counted by the standby time control means, and the standby time is set in advance. When the time exceeds, or when the temperature of the hot water from the pre-cleaning water temperature detecting means provided in the pipe falls below a predetermined value, the hot water removal operation is repeatedly performed, and the discharge pipe after the user is seated. A method for treating residual water in a sanitary washing device, characterized in that the temperature of water in the inside is maintained within a set range. 2. A discharge flow path for performing a discharge operation for discharging washing water obtained by mixing and adjusting water supply and hot water supply from a nozzle to a human body part, and a temperature of the cleaning water discharged from the discharge flow path within a predetermined range. A hot water ON / OFF control means for discharging hot water from the water discharge passage until the temperature of the mixed hot water reaches a constant temperature, in order to maintain the stability and adjust the flow rate of the washing water; And a discharge flow path for performing a discharge operation for discharging the supplied cleaning water immediately before the nozzle without using the supplied cleaning water for human body local cleaning, and performing a discharge operation in the discharge flow path by standby time control means. Executing means for causing the discharge flow path to perform a discharge operation when the counted time reaches a predetermined value and it is determined that the discharge operation by the discharge flow path is necessary. Characterized by Sanitary cleaning equipment.