JP2000160651A - Sanitary washing apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a sanitary washing apparatus in which wastefull flow of water can be avoided. SOLUTION: Warm water at a required temperature made by mixing hot water and water which are supplied separately is jetted out of a washing nozzle 8 to wash the privates of a human body. In this case, a valve for extra flow of water is arranged at the middle between a mixing chamber for hot water and water and the washing nozzle 8, and opening and closing of the valve for extra flow of water are made by a control circuit. The control circuit is set up so that the valve for extra flow of water is operated to open for a specified period of time when the presence of a human body is detected after expiration of set period for a timer which is put in operation at the time of previous use. Since residual water in the passage is not cooled down within a specified duration of time after previous use, extra flow of water is not made. After the residual water in the passage is cooled down with a specified period of time after the previous use expired, extra flow of water is made. Thereby, wastefulness deriving from conventional way of operation where extra flow of water is made wastefully even though the residual water in the passage is not cooled down can be prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sanitary washing apparatus in which hot water and water, which are separately supplied, are mixed with hot water at a desired temperature and are ejected from a washing nozzle, so that waste water can be efficiently used. It is about.

[0002]

2. Description of the Related Art In a sanitary washing apparatus for washing a local part of a human body installed in a hotel or the like, hot water and water supplied separately are mixed with hot water of a desired temperature and spouted from a washing nozzle, and the local part of the human body is washed. Make sure to wash. However, in a low temperature environment such as winter, if the sanitary washing device is not used for a certain period of time or longer, a hot water supply pipe (referred to as a hot water supply pipe branching from the main hot water supply pipe to the sanitary washing device on each floor), a hot water mixing device, and hot water Residual water remaining in the flow path from the mixing device to the washing nozzle becomes cold, and upon a new use, the cold residual water (so-called initial cold water) is directly jetted to the user's body, and the user is hurt. She sometimes felt uncomfortable, such as being nervous or stiff enough to jump up the whole body.

For this reason, in a conventional sanitary washing apparatus of a type in which hot water and water are separately supplied, a waste water valve is installed between a hot water mixing apparatus and a washing nozzle, and the waste water valve is placed immediately before use. Open operation, drain a predetermined amount of water,
In actual use, so-called initial cold water is not discharged, that is, only hot water is discharged from the beginning. The open / close control of the waste water valve is performed by forcibly opening the waste water valve when a human body detection signal is output, and detecting that the temperature sensor provided in the middle of the flow path has reached a predetermined temperature. There are a type in which the waste water valve is closed and a type in which the user operates the ON / OFF control of the open / close control switch of the waste water valve.

[0004]

However, in the case of the above-mentioned conventional waste water method, the sanitary washing device is frequently used, and if there is a next user within a certain period of time, , The hot water pipe and the hot and cold water mixing device and the residual water between the hot and cold water mixing device and the washing nozzle are not cold,
Nevertheless, there was a waste that it was always thrown away.
Further, when the room temperature is equal to or higher than the predetermined temperature, even when the residual water between the hot water supply pipe and the hot and cold water mixing device and the hot and cold water mixing device and the washing nozzle is left for a long time, it does not become cold, Although the user does not feel cold even if the ink is directly discharged to the local area of the user, even in such a case, there is a waste that the user is always thrown away.

[0005]

SUMMARY OF THE INVENTION The present invention has been made in consideration of the above-mentioned problems and has been improved and eliminated. It is an object of the present invention to provide a sanitary washing apparatus which does not waste water.

According to the first aspect of the present invention, there is provided a cleaning nozzle which mixes separately supplied hot water and water to obtain hot water having a desired temperature. In a sanitary washing device that cleans a local part of the human body by squirting water, a waste water valve is arranged between the hot water and water mixing chamber and the washing nozzle, and the waste water valve is opened and closed by a control circuit. When the control circuit detects a human body after the end of the set time of the timer started by the previous use,
A sanitary washing device characterized by opening a waste water valve for a predetermined time. In the sanitary washing device according to the present invention, the remaining water in the flow path does not become cold within a predetermined time period from the previous use, so that no waste water is discarded. After a predetermined time has passed since the last use, waste water is discarded only when there is use of the sanitary washing device, that is, when use is made after the residual water in the flow channel has cooled.
This makes it possible to prevent waste by the amount of the conventional waste water that is performed when the residual water in the flow path is not cold.

According to a second aspect of the present invention, hot water and water supplied separately are mixed to obtain hot water having a desired temperature, and the hot water is jetted from a cleaning nozzle to clean a local part of a human body. In the washing apparatus, a waste water valve is disposed between the hot water and water mixing chamber and the washing nozzle, and the waste water valve is opened and closed by a control circuit. The sanitary washing device is characterized in that the waste water valve is opened when a human body detection signal is output in the off state. According to the present invention, when the room temperature is equal to or higher than the predetermined temperature, the remaining water in the flow path does not become cold, so that the waste water is not disposed. Therefore, even in such a case, it is possible to prevent waste by the amount of the conventional waste water that was performed immediately before the start of use.

According to a third aspect of the present invention, the control circuit is configured to control the opening and closing of the waste water valve by the timer according to the first aspect and the opening and closing control of the waste water valve by the room temperature according to the second aspect. A sanitary washing apparatus characterized in that the cleaning is performed in combination. In the present invention, the effect of claim 1 and
It is possible to obtain the effect of claim 2 at the same time.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The configuration of the present invention will be described below with reference to the embodiments of the invention shown in the drawings. FIG. 1 relates to a first embodiment of the present invention, and FIG. 1 (A) shows a Western-style toilet (hereinafter simply referred to as a toilet).
FIG. 2 is a perspective view showing the sanitary washing device 2 incorporated in FIG. 1, and FIG. 2 is a drawing showing a control time chart of the sanitary washing device 2. As shown in FIG. 1A, a toilet seat box 5 having a toilet seat 3 and a toilet lid 4 pivotally supported on the rear upper surface of the toilet 1 so as to be freely opened and closed.
The main body 2 a of the sanitary washing device 2 is integrally formed with the toilet seat box 5 and attached to one side surface of the toilet 1. In the sanitary washing device main body 2a,
Hot water and water supplied from a hot water supply pipe 6 (referred to as a hot water supply pipe branched from a hot water supply main pipe and connected to a sanitary washing device on each floor) and a water supply pipe 7 are mixed to obtain hot water of a desired temperature. A hot water mixing device (not shown), a set temperature of the hot water mixing device, switching between shower cleaning and anal cleaning, and ON / O thereof.
A control circuit (not shown) for performing FF control is incorporated. In FIG. 1A, reference numeral 8 denotes a cleaning nozzle. The cleaning nozzle 8 is provided with a nozzle for shower cleaning and a nozzle for anal cleaning separately and is used exclusively. In the middle of the flow path between the hot and cold water mixing device and the washing nozzle 8, a waste water valve (not shown) is provided. The waste water valve is conveniently provided at a position facing the toilet bowl for drainage reasons.

[0010] The time chart of FIG. 1B shows the operation timing of the waste water valve in the sanitary washing device 2 configured as described above. That is, when the user first sits on the toilet seat 3, the seat switch is turned ON by the load, and the use of the toilet 1 is confirmed. With the ON signal output of the seat switch, the waste water valve opens (O
N) and the residual water from the hot water supply pipe 6 and the hot and cold water mixing device and the hot water and hot water mixing device to the washing nozzle 8 is, for example, 3
The waste water valve is drained into the toilet bowl only for 0 seconds. The wastewater in this case is discharged regardless of whether the residual water is cold or not. Therefore, the washing water jetted from the washing nozzle 8 of the sanitary washing device 2 after that becomes warm water at a desired temperature, and the user can surely use comfortably.

Next, when the toilet 1 has been used and the user stands up from the toilet seat 3, the seating switch is turned off. The control circuit counts time by a timer for a predetermined time from the OFF signal. For example, assuming that the set time is 6 hours, when 3 hours have passed since the previous use, when there is a next use, the control circuit determines the hot water supply pipe 6 and the hot and cold water mixing device, and the distance between the hot and cold water mixing device and the washing nozzle 8. It is determined that the residual water is not yet cold, and in this case, the waste water valve is not opened even if the ON signal of the seat switch is output. Therefore, conventionally, waste water was forcibly discarded even in such a case, but in the present invention, waste can be prevented by that much.

However, when the next toilet is used after a lapse of a set time (6 hours) from the output of the OFF signal of the seat switch, for example, after a lapse of 7 hours, the control circuit determines that the hot water supply pipe 6 and the hot and cold water are supplied. It is determined that the residual water between the mixing device and the hot and cold water mixing device to the washing nozzle 8 is cold, and the waste water valve is turned on (opened) simultaneously with the output of the ON signal of the seat switch. Therefore, the residual water that has become cold in the middle of the flow path is discarded, and the water valve is opened.
The cleaning water discharged during 0 seconds and flowing in the flow path becomes hot water at a desired temperature. Therefore, if the washing water is subsequently jetted from the washing nozzle 8 to perform sanitary washing, the local area of the user will be washed with warm water at a desired temperature, and comfortable use is possible.

FIG. 2 is a time chart showing the operation timing of the waste water valve according to the second embodiment of the present invention. In the second embodiment, the room temperature in the toilet room is detected, and when the room temperature is equal to or higher than the set temperature, the hot water supply pipe 6 is detected.
And the hot and cold water mixing device and the hot and cold water mixing device to the cleaning nozzle 8
It is determined that the remaining water will not become cold during this period, and no waste water will be discarded even if the ON signal of the seat switch is output. In other words, the waste water in this case is used for a predetermined time only when the toilet 1 is used and the ON signal is output from the seat switch when the room temperature in the toilet room is equal to or lower than the set temperature. ing. Therefore, conventionally, even when the room temperature is equal to or higher than a predetermined temperature and there is no possibility of discharging so-called initial cold water, water is forcibly discarded by a human body detection signal such as a seating signal. It is possible to prevent waste by the minute.

The present invention is not limited to the above-described embodiment, and can be appropriately modified. For example,
Temporal control by a timer shown in FIG.
It is possible to combine the control with the room temperature in the toilet room shown in FIG. In this case, the waste water will be drained only when the room temperature in the toilet room is equal to or lower than the set temperature and the toilet is used after the set time has elapsed since the last use of the toilet. It is possible to prevent more. The set time in the case of the temporal control by the timer and the set temperature in the case of the room temperature control may be appropriately set according to the environment in which the sanitary washing device 2 is used.

[0015]

As described above, in the sanitary washing apparatus of the present invention, a waste water valve is provided between the hot water and water mixing chamber and the washing nozzle, and the opening and closing of the waste water valve is controlled. In a sanitary washing apparatus which is operated by a circuit, when a control circuit detects a human body after a set time of a timer activated by a previous use, a waste water valve is opened for a predetermined time. For this reason, the water remaining in the flow path does not cool down within a predetermined time period from the previous use, and thus no waste water is discharged. After a predetermined time has passed since the last use, the remaining water in the flow channel becomes cold, so that the water is discarded. This makes it possible to prevent waste by the amount of the conventional waste water that is performed when the residual water in the flow path is not cold.

In another aspect of the present invention, when the human body detection signal is output in a state where the room temperature is equal to or lower than the set temperature, the waste water valve is opened. When the room temperature is equal to or higher than the predetermined temperature, the remaining water in the flow path does not become cold, so that no waste water is discharged. Therefore, even in such a case, it is possible to prevent waste by the amount of the conventional waste water that was performed immediately before the start of use.

Further, according to the present invention, the opening and closing control of the waste water valve by the timer and the opening and closing control of the waste water valve by the room temperature can be performed in combination, and these effects can be simultaneously obtained.

[Brief description of the drawings]

FIG. 1 relates to a first embodiment of the present invention,
Fig. (A) is a perspective view of a sanitary washing device and a toilet bowl, and Fig. (B) is a drawing showing a control time chart of a waste water valve.

FIG. 2 is a drawing showing a control time chart of a waste water valve according to a second embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Toilet bowl 2 ... Sanitary washing device 2a ... Sanitary washing device main body 3 ... Toilet seat 6 ... Hot water supply pipe

Claims (3)

[Claims] 1. A sanitary washing apparatus for mixing hot water and water, which are separately supplied, to obtain hot water having a desired temperature and jetting the hot water from a washing nozzle to wash a local part of a human body. From the washing nozzle to the washing nozzle,
The opening and closing of the waste water valve is performed by a control circuit, and the control circuit opens the waste water valve for a predetermined time when a human body is detected after the end of the set time of the timer activated by the previous use. And sanitary washing equipment. 2. A sanitary washing apparatus for mixing hot water and water, which are separately supplied, to obtain hot water having a desired temperature and jetting the hot water from a washing nozzle to wash a local part of a human body. From the washing nozzle to the washing nozzle,
The opening and closing of the waste water valve is performed by a control circuit, and the control circuit opens the waste water valve when the human body detection signal is output in a state where the room temperature is equal to or lower than the set temperature. Sanitary cleaning equipment. 3. A sanitary system, wherein the control circuit performs a combination of the open / close control of the waste water valve by the timer according to claim 1 and the open / close control of the waste water valve by room temperature according to claim 2. Cleaning equipment.