JPH0718718A - Flushing system for urinal stall - Google Patents

Abstract

PURPOSE:To maintain cleaness by a method wherein a flusing apparatus that automatically supplies flushing water to urinal stalls is made operable on signals from sensors provided to the urinal stalls and by a timer for supplying flushing water. CONSTITUTION:Sensors 6 are provided in the vicinities of urinal stalls 3. Infrared rays are constantly radiated from the sensors 6 toward the front of the urinal stalls 3, and persons standing in front of the urinal stalls 3 are sensed by the infrared sensors. Signals from the sensors 6 are inputted into first control valves 2, and the control valves 2 supply flushing water in a quantity approximately of 1.5 liters each to the urinal stalls 3. A tank 15 for storing flushing water is provided in the middle of a second water distribution system 8, and a second control valve 10 is installed in the tank 15. Flushing water in a quantity approximately of 5 liters each is supplied to each of the urinal stalls 3 at fixed intervals by operation of a timer. Thereby, dirt by human waste or the like can be prevented from sticking for a long time.

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION This invention relates to a flushing system for urinals.

[0002]

2. Description of the Related Art There are various flush systems for flush toilets, but in recent years, men's urinals are generally equipped with an automatic flush device. In this system, a human sensor using infrared rays is provided on the upper part of the toilet bowl, and a signal from the human sensor is used to control and clean the electromagnetic valve for water supply every time the urinal bowl is used. Generally, about 5 to 6 liters of water are used for each flush of the urinal.

In this system, the washing effect is excellent because it is automatically washed with water each time it is used. In addition to this method, there is a method in which the electromagnetic valve for water supply is controlled and washed at regular intervals (for example, about 10 to 15 minutes). In this method, since the cleaning is performed at every specific time, the total amount of cleaning water is small, and there is an advantage that the refreshing feeling can be always maintained even when the number of users is small.

[0004]

However, the above-mentioned conventional devices have problems peculiar to the respective systems. That is, although the former method of washing after each use is capable of promptly and reliably rinsing human waste and the like, when the use of the urinal is suspended, about 5 liters of water are required for each use, resulting in There is a problem that a large amount of water is wasted and it is not economical.

On the other hand, in the latter method of cleaning at regular intervals, there is a problem that the cleaning is insufficient because the cleaning is insufficient when the use of the urinal is delayed. The present invention has been made in view of the above-mentioned matters, and an object thereof is to provide a urinal cleaning system capable of achieving both water saving and a feeling of cleanliness.

[0006]

According to a first aspect of the present invention, in a flushing device for automatically supplying flush water to a urinal, a first water distribution system 4 from a water supply unit such as a water supply or a water storage tank to a urinal 3 is provided. A second water distribution system 8 which is provided separately from the first water distribution system 4 and connects the water supply unit and the urinal 3, and an intermediate portion of the first water distribution system 4 interposed from the water supply unit to the urinal 3 A first control valve 2 that controls the supply of flush water to the urinal, a sensor unit 6 that detects the use of the urinal 3 and outputs a signal to the first control valve 2, and a middle of the second water distribution system 8. Second control valve 1 for controlling the supply of flush water from the water supply section to the urinal through the portion
The cleaning system for urinals is provided with 0 and a timer unit 5 that operates the second control valve 10 at regular intervals.

As a second aspect of the present invention, in a flushing device for automatically supplying flush water to a urinal, a water distribution system 14 from a water supply section to a urinal 3 via a control valve 2 and the control valve 2
For a urinal, which includes a timer unit 5 for controlling the urinal 3 to supply flush water to the urinal 3 at regular intervals, and a sensor unit 6 for detecting the use of the urinal 3 and outputting a signal to the control valve. It was a cleaning system.

In the first and second inventions, it is preferable to take the following means. That is, the sensor unit 6
A sensing unit 7 for inputting a signal from the control valve 2 and outputting an instruction signal to the control valve 2 is provided.
Controls the control valve 2 each time the urinal 3 is used twice or each time the urinal 3 is used.

The sensor section 6 is formed by an optical human sensor. Further, the sensor unit 6 may be formed by a urine detection type sensor. Further, the control valve 2 can be formed by a solenoid valve, and the amount of flush water supplied to the urinal 3 through the control valve 2 each time the urinal 3 is used is about 1 to 1.5 liters. To do.

[0010]

In the first aspect of the invention, the sensor section 6 is the urinal 3
Outputs a signal to the first control valve 2 every time the
Supplies a relatively small amount of flush water (about 1 to 1.5 liters) to the urinal 3 through the first water distribution system 4. Timer part 5
Controls the second control valve 10 at regular intervals, and the second control valve 1
0 supplies the flush water (about 5 to 6 liters) to the urinal 3 through the second water distribution system 8 in an amount capable of completely flushing the urinal.

In the second invention, the sensor section 6 outputs an instruction signal to the control valve 2 every time the urinal 3 is used, and the control valve 2
Supplies a relatively small amount of washing water (about 1 to 1.5 liters) to the urinal 3 through the water distribution system 14. Timer part 5
Controls the control valve 2 at regular intervals, and the control valve 2 supplies the flush water (5 to 6 liters) to the urinal 3 separately from the control by the sensor unit 6 so that the toilet can be completely flushed. .

In this way, it is possible to maintain a clean feeling at all times and prevent waste of washing water even when the user is standing up and the number is small.

[0013]

Embodiments of the present invention will be described with reference to the drawings. In this embodiment, a system provided with four urinals will be described. <First Embodiment> A first embodiment will be described with reference to FIGS.

The water supply unit 1 comprises a water supply 1a, and the water supply 1a communicates with four urinals 3 via two water distribution systems. That is, the first water distribution system 4 is a system that reaches the four urinals 3 with the first control valve 2 interposed, and the second water distribution system 8 has the second control valve 10 interposed therebetween. It is a system leading to. The first water distribution system 4 and the second water distribution system 8 join together immediately before each urinal 3.

The first water distribution system 4 is composed of a first water distribution main pipe 4a communicating with the water supply unit 1 and four first water distribution branch pipes 4b branched from the first water distribution main pipe 4a. First control valves 2 each having an electromagnetic flush valve that allows a certain amount of water to pass therethrough are provided in the middle of the first water distribution branch pipe 4b. A sensor unit 6 having an optical human sensor is provided near the urinal 3. This sensor unit 6 always emits infrared rays in the front direction of the urinal 3,
The infrared sensor reflects infrared rays reflected when a person stands in front of the urinal 3 and determines whether or not the urinal 3 has been used from the rate of change. A signal from the sensor unit 6 is input to the first control valve 2, and the first control valve 2 supplies about 1.5 liters of flush water to the urinal 3.

The second water distribution system 8 includes a second water distribution main pipe 8a communicating with the water supply unit 1, a second water distribution branch pipe 8b branched from the second water distribution main pipe 8a, and a second water distribution branch pipe 8b. A second water distribution branch pipe 8c that branches further to reach each urinal 3.
It consists of and. A tank 15 for storing the washing water is interposed in the middle of the second water distribution main pipe 8a.
The tank 15 has a second control valve 10 for controlling the supply of the flush water stored in the tank 15 toward the urinal 3.
Is provided. Here, about 20 liters of flush water is stored in the tank 15, and when the second control valve 10 is opened, about 5 liters of flush water is supplied to each urinal 3. Become.

The second control valve 10 is controlled by the timer section 5. A program timer is used for the timer unit 5, and the operation interval can be arbitrarily changed according to the season, time and the like. This operation interval is usually set to 10 to 15 minutes.
Therefore, a fixed amount of flush water is supplied to all the urinals 3 via the second water distribution system 8 every preset time.

Although commercial power is supplied to the sensor section 6 and the timer section 5, they may be operated by a battery. The second control valve 10, like the first control valve 2, may also be formed by an electromagnetic flush valve that shuts off the valve when a certain amount of washing water is passed.
In this case, the tank 15 can be omitted.

The operation of the first embodiment will be described below. The first control valve 2 operates by receiving a signal from an optical sensor unit 6 provided in the urinal 3, and every time the urinal is used, the urinal 3 used is flushed with about 1.5 liters of flush water. To supply. At this time, the flushing by the first control valve 2 does not lead to a complete flushing since only 1.5 liters of flushing water is supplied to the urinal 3, but a clean feeling is obtained even when the user puts it in. A sufficient amount to give.

The timer unit 5 controls the second control valve 10 at regular intervals (for example, every 10 minutes) to supply about 5 liters of flush water to each urinal 3. As a result, even when the number of users is small or not used at all, the urinal 3 is always thoroughly cleaned, and it is possible to prevent dirt such as human waste from adhering for a long time and maintain the gloss of the urinal. it can.

FIG. 2 is a diagram for explaining the operation of the first control valve 2 and the second control valve 10. The upper part of the drawing shows the operating state of the first control valve 2, and the signal is input from the sensor unit 4 four times, that is, the urinal 3 is used four times, and the first time
This shows that the cleaning is performed by the control valve 2. On the other hand, the lower part of the figure shows the operating state of the second control valve 10, and the instruction signal is input three times from the timer unit 5, that is, the cleaning by the second control valve 10 is performed three times at regular intervals. Is represented. <Second Embodiment> A second embodiment of the present invention will be described with reference to FIG.

In FIG. 3, the same parts as those in the first embodiment are designated by the same reference numerals and the description thereof will be omitted. In this embodiment, the water distribution system from the water supply unit 1 to the urinal 3 is a single water distribution system. The water supply unit 1 and each urinal 3 are connected by a first water distribution system 4 including a first water distribution main pipe 4a and a first water distribution branch pipe 4b. The first control valve 2 provided in the middle of the first water distribution branch pipe 4b is controlled by signals from both the sensor unit 6 and the timer unit 5.

The first control valve 2 can change the washing water to be supplied by one-time operation by discriminating which of the instruction signals from the sensor section 6 and the timer section 5 is the instruction signal. . That is, the first control valve 2 allows about 1.5 liters of cleaning water to pass when the signal from the sensor unit 6 is input, and about 5 liters of cleaning water when the signal from the timer unit 5 is input. It is designed to pass water.

The first control valve 2 is formed so as to control opening / closing by, for example, an electromagnetic valve. Further, a rotary impeller that rotates by the passing wash water is provided, and the passing flow rate is detected based on the rotation amount of the rotary impeller. When the first control valve 2 is actuated by the signal from the sensor unit 6, the solenoid valve is shut off at the time when 1.5 liters of washing water is passed, and the first control valve 2 is operated from the timer unit 5. If it operates by the signal of, the solenoid valve is set to be shut off when 5 liters of washing water is passed.

Alternatively, the first control valve 2 may be composed of two valves having different passage allowances. When the instruction signals from the sensor unit 6 and the timer unit 5 are input to the first control valve 2 in a duplicated manner, the instruction from the timer unit 5 has priority. Further, the signal from the sensor unit 6 is input, and the first control valve 2
A sensing unit for outputting an instruction signal may be provided, and the sensing unit may be configured to control the first control valve 2 each time the urinal 3 is used, or each time the urinal 3 is used twice.

As described above, according to the present embodiment, the water supply for each use of the urinal is set to about 1/4 to 1/5 of that of the conventional one, so that a significant amount of water can be saved. In addition, since the urinal is completely washed at regular intervals, it is possible to prevent human waste from soiling the urinal as much as possible. Therefore, it is possible to always maintain a clean feeling and save water for the washing water regardless of whether the urinal is used by a large number or a small number of users.

[0027]

According to the present invention, it is possible to provide a urinal cleaning system capable of achieving both water saving and a feeling of cleanliness.

[Brief description of drawings]

FIG. 1 is a piping diagram showing a first embodiment of the present invention.

FIG. 2 is a graph for explaining the operation of the first embodiment.

FIG. 3 is a piping diagram showing a second embodiment of the present invention.

[Explanation of symbols]

 1 ... Water supply section 1a ... Water supply 2. First control valve 3 ... Urinal 4 ... First water distribution system 4a ... First water distribution main 4b ... First water distribution branch 5 ... Timer section 6 ..Sensor unit 8..Second water distribution system 8a..Second water distribution main pipe 8b..Second water distribution branch pipe 8c..Second water distribution branch pipe 10..Second control valve 15 ..

Claims (4)

[Claims] 1. A flushing device for automatically supplying flush water to a urinal, wherein a first water distribution system from the water supply unit to the urinal and the first water distribution system are separately provided. And a second control system for connecting flushing water, a first control valve interposed in the middle of the first control system to control the supply of flush water from the water supply section to the urinal, and detecting the use of the urinal. Sensor unit for outputting an instruction signal to the first control valve, a second control valve for controlling the supply of the flush water from the water supply unit to the urinal by interposing an intermediate portion of the second water distribution system, and a fixed time. A flushing system for a urinal, comprising: a timer unit that outputs an instruction signal to the second control valve for each. 2. A flushing device for automatically supplying flush water to a urinal, wherein a water distribution system from a water supply section to a toilet via a control valve and the control valve are controlled to flush the urinal at regular intervals. A flushing system for urinals, comprising: a timer unit for supplying the urinal; and a sensor unit for detecting use of the urinal and outputting an instruction signal to the control valve. 3. A sensing unit for inputting a signal from the sensor unit and outputting an instruction signal to the control valve, the sensing unit controlling the control valve every time the urinal is used twice. The cleaning system for urinals according to claim 1. 4. The urinal cleaning system according to claim 1, wherein the sensor unit includes an optical human sensor.