JPH11140939A - Toilet cleaning system using recycled water - Google Patents

Abstract

PROBLEM TO BE SOLVED: To control an occurrence of smell by providing a storage tank, a low tank, a recycled water transport pipe and a pumping control means, and a hand-washing water guiding means and forming a ball tap in a manner preventing water from being discharged into the tank. SOLUTION: Recycled water is supplied to a low tank B by pumping from a tank C. And then when a drain valve 2 is opened, cleaning water flushes sewage in a toilet bowl A. When a water level of the low tank B begins to lower, the ball tap 3 operates, beginning to supply water. Hand-washing water is discharged into a hand-washing basin 61 from a spout 62 for washing hands and is used for washing hands. Water is guided to an overflow pipe 4 through a funnel 71 from a drainage opening 63 and supplied to a bowl A as rinsing water. The drain valve 2 closes automatically as buoyancy decreases, no recycled water is supplied. However, the supply of rising water flowing into the bowl A through the overflow pipe 4 continues, replacing water collected in the bowl. Thus collected water can be replaced by hand-washing water.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a toilet flushing system, and more particularly to a toilet flushing system for reusing remaining hot water from a bath or water used for washing in a general household for toilet flushing.

[0002]

2. Description of the Related Art Conventionally, as a system for reusing water used once, such as remaining hot water in a bath, for washing a toilet bowl, there are various systems in addition to Utility Model Registration No. 3023140 filed by the present applicant. However, since water that has been used once and becomes dirty is reused as washing water, there are problems that water stains adhere to the toilet and that accumulated water in the toilet generates an odor.
In particular, in the case of reusing wastewater from a bathroom washing place and wastewater from washing, a large amount of soap and dirt are contained in the wastewater, so that the toilet bowl is easily soiled, and the odor is particularly problematic in summertime and the like. ,

[0003]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned circumstances, and an object of the present invention is to provide a system in which reused water is used for flushing a toilet bowl. It is to prevent the adhesion of water and the generation of odors from the toilet water.

[0004]

In order to achieve the above-mentioned object, a toilet flushing system using recycled water according to the present invention has a tank for storing water used at least once, A low tank with a hand wash that is connected to the toilet bowl and connects the ball tap to the water supply, a reusable water transfer pipe that connects the tank with the low tank, pumps up the water in the tank and supplies it to the low tank, Pump-up control means that detects the water level and controls the start / stop of pump-up, and hand-wash water that guides hand-wash water flowing into the tank from the drain hole of the hand-wash pot formed in the lid of the tank to the overflow pipe in the tank And a water tap means, wherein a ball tap provided in the low tank is configured to be unable to discharge cleaning water into the tank.

The pump-up control means is provided with a delay timer to start the pump-up after a predetermined time delay from the detection of the pump-up start water level by the water-level detecting means. Is desirable.

Further, the above-mentioned ball tap having a water outlet for washing water into the low tank can be used by closing the water outlet with a stopper.

Further, the reused water transfer pipe is mounted on the low-tank one of the two ball tap mounting holes for left and right water supply, which is not provided with a ball tap. It can be drawn into the tank through the hole.

[0008]

In the toilet flushing system according to the first aspect of the present invention, the reuse water is stored in the low tank and used as flushing water for the toilet, while the ball tap is used as hand washing water for flushing the toilet. Is supplied to the toilet through an overflow pipe in the low tank to rinse the ball surface of the toilet and replace the accumulated water in the toilet.

Further, in the toilet flushing system according to the second aspect, by delaying the start of pump-up, the time from the start of flush water drainage of the low tank to the pump-up stop time is extended, and a necessary and sufficient rinsing time is reduced. It becomes possible to secure.

In the toilet flushing system according to the third aspect of the present invention, an existing or existing ball tap having a normal hand-washing water supply function can be easily configured so that flushing water cannot be discharged into the tank. This eliminates the need for developing a new ball tap for implementing the invention of claim 1.

Further, in the toilet flushing system according to the fourth aspect, when the reuse water transfer pipe is drawn into the low tank, it is not used even though the low tank is previously opened.
Since the ball tap mounting hole is used, no special processing is required for drawing the reused water transfer pipe into the low tank.

[0012]

Embodiments of the present invention will be described below with reference to the drawings. In the figure, A is a toilet bowl, B is a low tank for flushing a toilet bowl, C is a tank for storing reuse water, and this tank C is connected to the low tank B via a reuse water transfer pipe 1 having a pump 11. I have.

Reference numeral 2 denotes a drain valve of the low tank B, reference numeral 3 denotes a ball tap, reference numeral 4 denotes an overflow pipe. The secondary side of the drain valve 2 is connected to the toilet A, and the primary side of the ball tap 3 is connected to the water supply, that is, the water pipe 5. It is connected. As shown in FIG. 2, the overflow pipe 4 is connected to a valve seat member 21 of the drain valve 2 and its lower end communicates with the secondary side of the drain valve 2.
Although the low tank B is provided close to the toilet A in the drawing, the low tank B may be installed on the wall of the toilet near the toilet A, and may be connected to the toilet A via an appropriate water supply pipe. is there.

The low tank B has a hand-washing function. The lid 6 of the tank B has a hand-washing pot 61 and a
Is provided with a spout 62 facing the spout, and the hand-washing bowl 61 communicates with the tank B through a drain 63 formed at the bottom thereof, and the base of the hand-washing spout 62 is a ball tap in the tank B. 3 is communicated via an appropriate communication pipe 64.

The low tank B is provided with a hand washing water guiding means 7 for guiding hand washing water discharged from the hand washing spout 62 and flowing into the tank B from the drain port 63 of the bottom 61 of the hand washing pot to the overflow pipe 4. ing. Means 7 above
Is configured using a funnel 71, a receiving portion 71a that expands is disposed directly below a drainage port 63, and an injection port 71b faces the overflow pipe 4 in an inserted manner. Since the overflow pipe 4 is generally displaced from the center of the tank B so as not to obstruct the operation of the float 31 of the ball tap 3, the means 7 bends the inlet 71b side of the funnel 71. , And is led to the overflow pipe 4 using a communication pipe or the like. The hand washing water guiding means 7 for guiding the hand washing water to the overflow pipe 4 is not limited to the structure using the funnel 71 as described above. It is also possible to constitute so that it may be directly connected.

On the other hand, the ball tap 3 is a general ball tap having a water supply port 32 into the tank, a water supply port 33 to the hand-washing side, and a water supply port for sealing and replenishing, if necessary, though not shown in the drawing. By closing the water supply port 32 into the tank, water can be supplied to the hand-washing side, but direct water supply to the tank B cannot be performed. To close the water supply port 32 into the above-mentioned tank,
It is done by installing 34. Usually, a net is attached to the water supply port 32 of the ball tap 3 using a cap nut, so that a screw portion for screwing the cap nut or the cap nut itself is used to connect to the water supply port 32. The mounting of the stopper 34 can be easily performed.

In this embodiment, as described above, the water supply port 32 into the tank of the ball tap 3 having the water supply port 32 into the tank and the water supply port 33 into the hand-washing side is closed by the stopper 34. Although the ball tap 3 is configured so that water cannot be supplied directly into the tank B, it is of course possible to create and use a special ball tap having only the water supply port 33 to the hand-washing side. It is also possible to connect the water supply port 32 to the hand washing spout 62 through an appropriate flow control valve and a communication pipe by using a ball tap having only the water supply port 32.

The tub C for storing the reused water is configured to introduce and store wastewater from a bathtub, a bathroom washing place, and a washing machine. The tank C is desirably configured to introduce each of the wastewaters through an appropriate purification device. A reuse water transfer pipe 1 having a pump 11 is provided between the tank C and the low tank B so that the reuse water stored in the tank C can be pumped up and supplied to the low tank B. In order to control the operation of the pump, a pump-up control mechanism 8 described later is provided.

The reused water transfer pipe 1 is a low tank B
Is drawn into the tank B using a spare ball tap mounting hole 92 provided in the tank main body 9 of FIG. That is, in general, the low tank B has two ball tap mounting holes in order to be able to cope with both left and right water supply.
91,92 provided, usually using one of them 91,
The other 92 is closed with a cap, so that the reused water transfer pipe 1 can be drawn into the low tank B by using the unused mounting hole 92. In the case of the embodiment, since the water is supplied to the left, the reused water transfer pipe 1 is drawn in using the ball tap mounting hole 92 for the right water supply which is not used.

The discharge port 12 of the reused water transfer pipe 1 drawn into the low tank B is connected to an elbow 13 or the like so that the discharged reuse water flows along the wall of the tank B so that the water discharge direction is changed. Has been adjusted. Flowing the discharge water along the wall of the tank B in this way prevents the water surface from waving,
The swing of the float 31 of the ball tap 3 is reduced, which is effective for stabilizing the supply of the ball tap water and preventing a water hammer. The reused water transfer pipe 1 may be a fixed pipe in which the pump 11 is mounted on a tank, or may be a throw-in type pump.

The pump-up control mechanism 8 mainly includes a relay switch 81, a delay timer 82, and a water level detecting means 83. The pump-up control mechanism 8 detects the lower limit water level of the low tank B by the water level detecting means 83, ie, the detection of the pump-up starting water level. A sequence is set up such that the pump-up is started after a predetermined time delay, and the pump-up is stopped by detecting the upper limit water level, that is, the pump-up stop water level. In the case of the illustrated embodiment, the pump-up control mechanism 8 uses a floatless switch provided with three electrode rods 83a, 83b, 83c having different lengths in the water level detecting means 83, and the sequence is as shown in FIG. When the water level in the low tank B falls below the tip of the second longest electrode rod 83b, the delay timer 82 starts, and the relay 81 is activated by the time-up.
Start the operation of 11, the water level rises and the shortest electrode rod 83a
When the water reaches the tip of the ball tap B, the relay 81 is turned off and the operation of the pump 11 is stopped.
Water level is the same as Incidentally, the water level detecting means 83
Although not shown, the tank body 9 of the low tank B
The terminal block is fixed to the back of the tank B with a double-sided tape, while being set in the tank B so as to pass through the gap between the cover and the lid 6. Also,
The water level detection means 83 is not limited to the electrode rod as described above, and any known water level detection sensor may be used as long as it does not hinder the operation of the float 31 of the ball tap 3. Is also possible.

In the toilet flushing system of the present invention thus configured, the flush water supplied to the low tank B is flowed to the toilet A, as in the conventional low tank toilet flushing device.
The waste is discharged from the toilet A, and the reuse water is used as the washing water. Hereinafter, the operation of the toilet flushing system of the present invention will be described.

The reuse water used as the washing water is pumped up from the tank C storing the reuse water and supplied to the low tank B. When the drain valve 2 of the low tank B is opened, the reuse water in the tank B is supplied to the toilet A as washing water, and flushes and discharges the waste in the toilet. Thereby, the water level in the tank B starts to fall. As soon as the water level in the tank B starts to drop, the ball tap 3 is activated to start supplying water. The water supplied from the ball tap 3 is clean water, and is not supplied into the tank B, but is discharged from the hand washing spout 62 to the hand washing pot 61 and used for hand washing. It is led from 63 to the overflow pipe 4 via the funnel 71, and is supplied from the overflow pipe 4 to the toilet A as rinse water.

After the drain valve 2 is opened, the valve is kept open by its buoyancy. However, when the water level drops and the water valve becomes exposed to the water surface, the buoyancy is reduced and the valve is automatically closed. Although the supply of the reuse water to A is lost, the supply of the rinse water flowing from the ball tap 3 to the toilet A through the overflow pipe 4 is continued, and the ball a surface of the toilet A after the supply of the reuse water is stopped. And the pool water b in the ball a is replaced with the rinse water from the reuse water.

On the other hand, when the water level in the tank B drops and the water level detecting means 83 detects the lower limit water level, that is, when the tip of the second longest electrode rod 83b is exposed on the water surface, a delay timer is set.
82 is started, and after a predetermined delay time has elapsed, the pump 1 operates to pump up the reuse water from the tank C storing the reuse water to the low tank B. The pumping of the recycled water to the low tank B is continued until the water level detecting means 83 detects the upper limit water level, that is, until the water level reaches the tip of the shortest electrode rod 83a. Since the upper limit water level and the water stop water level of the ball tap 3 match, when the pump-up stops, the ball tap 3 also stops water and the supply of the rinse water stops.

Usually, the rinsing time requires about 50 to 60 seconds, but the rinsing water supply time is determined by the control of the ball tap 3, and depends on the pump-up time. Therefore, if pump-up starts simultaneously with the detection of the lower limit water level by the water level detection means 83, the rinsing time is too short, and the replacement of the toilet bowl water b is not performed sufficiently. Therefore, in the present embodiment, a delay time is provided as described above in order to adjust the rinse time.

As described above, in the present embodiment, the delay timer 82 is provided in the pump-up control mechanism so as to adjust the rinse time by delaying the timing of starting pump-up. It is also possible to adjust the rinsing time by adjusting the amount of water.

[0028]

As described above, according to the first aspect of the present invention,
According to the invention, water used once is stored in a tank, which is pumped up to a low tank for use in toilet flushing, and hand water is washed by a ball tap which is configured so that flushing water cannot be discharged into the tank. The hand washing water is collected in the overflow pipe of the low tank and supplied to the toilet, so that the ball surface of the toilet can be rinsed with the hand washing water and the toilet water can be replaced.
Therefore, it is possible to prevent the attachment of dirt to the toilet and the generation of odor from the toilet water even though the system is a toilet flushing system using reused water. In addition, this system uses a low tank and pumps up reused water from a tank that is configured to introduce and store wastewater from a bathtub, bathroom washroom, washing machine, etc. There is no need to attach the stool, and there is no need to reinforce the toilet walls.

According to the second aspect of the present invention, a delay timer is provided in the pump-up control mechanism so that the start of pump-up is delayed from the detection of the pump-up start water level by the water level detecting means. The time until the pump-up stops can be lengthened, a sufficient rinsing time can be secured, and the rinsing effect of the bowl portion of the toilet bowl and the replacement effect of the accumulated water in the toilet bowl can be further ensured. Further, the rinsing time can be easily and accurately adjusted.

According to a third aspect of the present invention, in the first or second aspect of the invention, the ball tap is configured such that a water tap of a ball tap provided with a water outlet for washing water into the low tank is closed with a stopper. Or an existing ball tap can be used, and cost increase can be suppressed.

The invention of claim 4 is the first to third aspects of the present invention.
In any of the inventions described above, a ball tap mounting hole that has been previously opened in the low tank and is not used is used to draw the reused water transfer pipe into the low tank, so that the low tank can be reused without special processing. The water transfer pipe can be easily pulled in. In addition, since the existing low tank toilet flushing system can be used as it is, a toilet flushing system using reused water can be constructed at low cost.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram showing an outline of the overall configuration of a toilet flushing system that uses recycled water as flushing water of the present invention.

FIG. 2 is a perspective view of a main part showing an example of an embodiment of the present invention, in which a low tank portion is shown in a longitudinal section.

FIG. 3 is an explanatory diagram showing a sequence of a pump-up control mechanism.

[Explanation of symbols]

 A: Toilet B: Low tank C: Tank 1: Reuse water transfer pipe 2: Drain valve 3: Ball tap 4: Overflow pipe 5: Water supply 6: Tank lid 7: Hand washing water guide 8: Pump up means 32: Inside the tank Outlet 34: Plug 61: Hand wash bowl 63: Drain hole 82: Delay timer 83: Water level detection means 91: Ball tap mounting hole 92: Ball tap mounting hole

Claims (4)

[Claims] 1. A tank for storing water used at least once, a low tank with a hand-wash that is installed connected to a toilet and connects a ball tap to a water supply, and a communication between the tank and the low tank to pump up water in the tank. Water transfer pipe to supply the raw water to the low tank, pump-up control means for detecting the water level in the low tank and controlling the start / stop of pump-up, and the tank from the drain hole in the hand-washing bowl formed in the lid of the tank Hand washing water guiding means for guiding the hand washing water flowing into the inside to the overflow pipe in the tank, wherein the ball tap provided in the low tank is configured to be unable to discharge the washing water into the tank. A toilet flushing system that uses recycled water. 2. The reclaimed water according to claim 1, wherein the pump-up control means includes a delay timer, and starts pump-up after a predetermined time delay from the detection of the pump-up start water level by the water level detection means. Toilet flushing system to use. 3. The reuse water according to claim 1, wherein the ball tap has a spout for washing water into the low tank, and the spout is closed with a stopper. Use toilet bowl cleaning system. 4. A reused water transfer pipe is drawn into the tank via a ball tap mounting hole to which a ball tap is not mounted among two left and right water tap mounting holes formed in a low tank. A toilet flushing system using recycled water according to any one of claims 1 to 3.