JPH06185100A - Water feeder for washing toilet stool - Google Patents

Abstract

PURPOSE:To spare the water by cutting-off or diminishing the supply water before it is necessitated for sealing water, by providing a timing controller which controls the start-timing of discharging water in a washing water supply device, at the time when the water ceases to discharge. CONSTITUTION:When a drain valve B is opened by the movement of a drain- manipulating tool, the water in a larger tank (a) is fed to a toilet stool from the drain valve B through the drain outlet 5. In this time, the water in a smaller tank (b) is discharged from a control hole 4 to remarkably delay the speed of lowering water level of the smaller tank (b), compared with that of the larger tank (a). When the water level of smaller tank (b) is lowered to a specified position, the water supply valve C is opened to start supplying to the tank A. The supply of water into the tank A is delayed by the time when the water level is lowered from the full water level W11 to the specified water level of the smaller tank (b). In this way, useless water can be spared without unnecessary flushing from the water tank to the stool.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water supply device for cleaning a toilet bowl, and more particularly to a tank type water supply device for cleaning a toilet bowl.

[0002]

2. Description of the Related Art Conventionally, a tank-type toilet flushing water supply device is provided with a ball tap water supply plug, and water is supplied to a tank by the ball tap water supply plug.
When the drain valve of the tank is opened and the supply of the wash water stored in the tank to the toilet bowl is started, the ball tap faucet detects the drop in the tank water level with a float and enters the tank at the same time when the water level starts to drop. To start water supply. The water supplied to the tank between the start of the water supply and the closing of the drain valve is supplied to the toilet together with the water previously stored in the tank.

Further, in a toilet bowl of a type that uses a siphon action to discharge dirt, a part of water supplied from a ball tap water tap is used for cleaning the toilet bowl as a measure against a shortage of accumulated water in the bowl bowl portion due to the siphon. Separately from the water to be supplied to the tank, it is supplied to the toilet as supplementary water for sealing through an overflow pipe, etc.This supplementary water for sealing is also supplied at the same time as the water level in the tank begins to drop, similar to the case of supplying water to the tank. Has been started. On the other hand, no matter what type of water supply device is used for the toilet, the amount of water stored in the tank is set to a sufficient amount for cleaning the toilet.

[0004]

Therefore, during the period from the start of lowering of the tank water level by opening the drain valve to the closing of the drain valve, the water is supplied from the ball tap faucet to the tank, together with the water previously stored in the tank. The water that is flushed in the toilet bowl (which is referred to as chasing water in the following description) is excess water that is more than necessary for toilet bowl cleaning. In addition, in the toilet bowl of the type that uses the siphon action to discharge dirt, in addition to the wasteful chasing water as described above, supplemental water for sealing that should be supplied after the siphon is originally finished Is being wasted from.

The present invention has been made in view of the above problems of the prior art. The object of the present invention is to supply water to a tank while a drain valve is open in a tank-type toilet flushing water supply device. It is intended to save water by removing or reducing the supply water that flows to the toilet bowl side or is supplied to the toilet bowl before it is needed for sealing water.

[0006]

In order to achieve the above object, a toilet flushing water supply device of the present invention is a tank for storing flush water, which has a drain valve at the bottom, and through which the drain valve is placed. It is equipped with a tank that communicates with the toilet bowl, and a flush water replenishing device that replenishes the flush water to the tank based on the flush water supply to the toilet bowl, and the water stored in the tank is supplied to the toilet bowl by opening the drain valve. In a toilet flushing water supply device in which the flush water replenishing device replenishes the flush water to the tank based on the water supply to the toilet bowl, the water supply start timing of the flush water replenishing device is controlled at the time when the drainage of the tank ends or near the end. The timing control device is provided. The timing of starting the water supply to the tank by the flush water replenishing device may be controlled at the time when the siphon phenomenon that occurs in the trap drainage channel of the toilet with the cleaning of the toilet is completed or is about to be completed.

[0007] The timing when the drainage of the tank ends or soon ends is detected based on the water level detection inside the tank by the float or the water level detection inside the tank by the pressure sensor, or based on the tank discharge time obtained from the test data. Try to detect. Also, the timing of the siphon phenomenon occurring in the trap drain of the toilet bowl, or the timing of its end soon, can be detected based on the water level detection in the tank by the float or the pressure detection in the trap drain channel of the toilet by the pressure sensor, and the test data. The detection is performed based on the time from the occurrence of siphon in the trap drain of the toilet bowl to the end obtained.

[0008]

In the toilet flushing water supply device configured as described above, when the flush water stored in the tank is supplied to the toilet bowl, the water is replenished to the tank immediately before or after the drainage of the tank is completed. It is started after that, or just before or just before the end of the siphon phenomenon that occurs in the trap drain of the toilet due to the cleaning of the toilet.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. The illustrated embodiments are all tank-type water supply devices having a ball tap water tap as a cleaning water supply device to the tank. The first embodiment shown in FIGS. 1 to 3 and the second embodiment shown in FIGS. In the third embodiment shown in FIG. 6, the fourth embodiment shown in FIG. 7, and the fifth embodiment shown in FIG. 8, the inside of the tank is divided into large and small tanks, and the smaller tank is The smaller tank has a ball tap hydrant float, and the larger tank has a ball tap hydrant outlet facing the bottom and a drain valve at the bottom.

First, the first embodiment will be described. In the figure, A is a tank for storing cleaning water, and the partition plate 1 divides the inside into two tanks a and b of a large size and a large tank a.
A drain valve B is provided at the bottom of the tank (hereinafter referred to as a large tank).

A ball tap water faucet C is attached to an upper portion of a side wall of the tank A so that its spout 2 faces a large tank a and a float 3 is arranged in a smaller tank b (hereinafter referred to as a small tank). .

The partition plate 1 is erected on the bottom wall of the tank A and extends over a pair of opposing side walls of the tank A, and a small hole-like control hole 4 is formed in the lower part thereof. .

The drain valve B comprises a valve seat 6 formed at the edge of a drain port 5 opened at the bottom of the large tank a and a valve body 7 corresponding to this from inside the tank A. The upper end of the valve shaft 8 provided in a ring shape communicates with a drainage operation device (not shown) provided outside the tank A through a chain 9 or the like, and the valve body 7 is pulled up from the valve seat 6 by the operation of this operation device and drained. The valve B is designed to open. Further, the drain valve B is provided with a slow closing mechanism 10 for gently closing the valve.

The slow-closing mechanism 10 is formed in an annular shape so as to surround the valve shaft 8 and has its bottom closed with a bottom of the tank A at a distance equal to or larger than the lift of the drain valve B and its upper part held by the tank A.
Small room 10a opened below the water level when it is full
A buoyant body 10c housed in the small chamber 10a and attached to the valve shaft 8 via a mounting arm 10b;
It is constituted by a small hole 10d opened at the bottom of 10a, and the valve closing timing is set according to the delay of the water level drop in the small chamber 10a with respect to the water level drop in the large tank a caused by the action of the small hole 10d. It can be delayed.

That is, the drain valve B is opened when the drain operating device is operated to drain the water in the tank A from the drain port 5, but the water in the small chamber 10a is compared to the drain port 5. Since it is drained through the extremely small small hole 10d, the drop in the water level lags behind the drop in the water level in the large tank a, and the valve body 7 is supported by the buoyant body 10c housed in the small room 10a and is stored in the small room 10a. It slowly descends with a gradual drop in the water level, and sits on the valve seat 6 and closes the valve with a slight delay from the end of drainage in the large tank a.

In the illustrated example, the outer peripheral wall of the small chamber 10a is extended downward from the bottom of the small chamber 10a so that the small chamber 10a is supported with a space from the bottom of the small chamber 10a. Since the drain valve B is surrounded by the extended portion of the outer peripheral wall extending downward from the bottom portion of the bottom portion 10a, an opening 10e for passing water is provided in the portion. Although not shown, the drain port 5 is connected to the toilet bowl.

On the other hand, the ball tap water faucet C is closed by the buoyancy of the float 3 acting on the valve body (not shown) via the actuating arm 11, and the float 3 is attached to the valve body as the water level in the tank decreases. It is a conventionally known ball tap water tap that opens when the buoyancy of No. stops acting and starts water supply, and is shown as a pilot type ball tap water tap in the illustrated example.

Thus, in the toilet bowl water supply device of this embodiment, when the drain valve B is opened by operating the drain operating device, the water in the large tank a is supplied from the drain valve B to the toilet via the drain port 5. It At this time, the water in the small tank b is discharged to the large tank a side from the control hole 4, but since the control hole 4 is a small hole, the decrease in the water level in the small tank b is significantly delayed from the decrease in the water level in the large tank a. (Fig. 2)

Since the float 3 of the ball tap water faucet C is arranged in the small tank B, the opening of the ball tap water faucet C is performed based on the decrease in the water level in the small tank b, and the buoyancy of the float 3 acts on the valve body. When the water level in the tank decreases to a position where it does not occur, for example, wl2 in FIG. 2, the ball tap water tap C opens and water supply to the tank A starts. That is, the replenishment of water to the tank A is delayed from the start of water supply to the toilet by the time required for the water level to drop from the full water level (wl1 in FIG. 1) to wl2.

Therefore, the opening timing of the ball tap water tap C is determined by the position of the float when the water is full and the size of the control hole 4. That is, in this embodiment, the small tank b and the control hole 4 are ball tap water taps C which are washing water replenishing devices.
Control device D for controlling the water supply start timing of the
Will be configured.

It is desirable that the ball tap faucet C be opened at the time when the water in the large tank a is completely discharged or when the toilet cleaning is completed. In the former case, the drain valve B is opened with the toilet set. The time from the completion of drainage of the large tank a is measured, and the size of the control hole 4 is set so that the water level of the small tank b becomes wl2 at the same time, and in the latter case, the toilet bowl is set. In this state, measure the time from the opening of drain valve B to the end of the siphon phenomenon that occurs in the trap drain of the toilet, and set the size of control hole 4 so that the water level in tank b is wl2 at the same time. To do. In the above measurement, it goes without saying that the ball tap water tap C does not supply water to the tank.

On the other hand, the drain valve B is closed with a slight delay after the start of the replenishment of water to the tank A by the ball tap faucet C, that is, the completion of the drainage of the large tank a, and thereafter the water begins to accumulate in the tank A. The water level in the tank rises. In addition, large tank a
Slightly from the end of drainage of the tank to the closing of drain valve B
The water replenished inside is discharged to the toilet bowl, but is used for sealing the toilet bowl.

The replenishment of water from the ball tap faucet C is carried out in the large tank a, and the control hole 4 connecting the large tank a and the small tank b is a small hole, so that the water level in the small tank b is greatly increased. It is later than the rise of the water level in tank a. (FIG. 3) Therefore, the water level in the small tank b reaches Wl2, that is, the buoyancy of the float 3 acts on the valve body of the ball tap water tap C to close the ball tap water tap C, and water is supplied to the tank A. At the time when is stopped
Is higher than the water level in the small tank b, but the water levels of both a and b are averaged through the control hole 4 after the ball tap water tap C is closed, and settles to a predetermined full water level wl1.

Next, the second embodiment shown in FIGS.
Although the basic structure is the same as that of the first embodiment, the large tank a
Further, a flapper valve 12 for preventing water from flowing from the large tank a side to the small tank b side is provided in the control hole 4 opened in the lower part of the partition plate 1 for partitioning the small tank b. The flapper valve
Reference numeral 12 does not completely seal the control hole 4, but has a closing force that causes a slight water leak.

Therefore, in this embodiment, there is no hindrance to the discharge of water from the small tank b side to the large tank a side, and therefore, when flush water is supplied to the toilet bowl, exactly the same operation as in the first embodiment is performed. However, when replenishing water to the tank A, the water first collects in the large tank a, and after the water level reaches the upper end of the partition plate 4,
It flows into the small tank b beyond the upper end of the partition plate 4 and is also stored in the small tank b.

With such a structure, the small tank b
Since the water level rises rapidly and the ball tap hydrant C is closed promptly after the large tank a becomes full, the time when the ball tap hydrant C is fully opened and the water is extended becomes longer. Shortened. Further, even if there is a variation in the water supply pressure, the water level near the upper end of the partition plate 1 is reliably achieved, and a stable water stop level can be obtained.

The third embodiment shown in FIG. 6 and the fourth embodiment shown in FIG. 7 are basically the same as the second embodiment,
A partition plate 1 for partitioning the large tank a and the small tank b is formed into an L-shaped cross section and attached to the middle portion in the height direction of the tank side wall to provide a space between the bottom surface of the small tank b and the bottom surface of the tank A. The control hole 4 is formed on the bottom surface of the small tank b.

In the third embodiment, when the water is supplied to the tank A, the control hole 4 is closed by using the float 3 of the ball tap water tap C. That is, in the third embodiment, as shown in FIG. 6, the ball tap faucet C connects the actuating arm 11 for causing the buoyancy of the float 3 to act on the valve body to vertically hang down from the main body, and in the middle thereof. A float 3 formed in a ring shape is slidably attached to a lower side of a stopper 13 provided in the portion, and a control hole 4 is formed in a bottom surface of a small tank b which is directly below the float 3. is there.

Therefore, in this embodiment, when the water level in the small tank b is up to the water stop level, the buoyancy force is applied to the actuating arm 11 and the valve body by the buoyant force via the stopper 13 of the actuating arm 11. It closes the valve by pressing it against the seat, but when the water level in the tank b drops due to water supply to the toilet bowl and the buoyancy of the float 3 stops acting on the valve body, the weight of the valve body and the actuating arm 11 and the primary side of the ball tap water tap. Due to the water pressure, the valve element separates from the valve seat to open the valve, and the float 3 descends along the operating arm 11 as the water level in the small tank b decreases, and finally contacts the bottom surface of the small tank b to make the control hole 4 Is designed to block.

Therefore, when water is supplied to the tank A, the control hole 4 is blocked by the float 3, and the float 3 is moved upward through the control hole 4 as the water level in the large tank a rises. By constructing the weight so as to exceed the water pressure for pushing up, the inflow of water from the control hole 4 into the small tank is prevented, and the water is first accumulated in the large tank a and the water level is divided by the partition plate as in the second embodiment. After reaching the upper end of the partition plate 1, it flows over the upper end of the partition plate 1 into the small tank b and is likely to be stored in the small tank b.
Upon hitting 13, the valve body is acted upon by its buoyancy to close the valve and stop the water supply to the ball tap water tap C. The float 3
Does not necessarily have to be slidable on the operating arm 11,
It is also possible to integrally attach and fix to the operating arm 11.

In the fourth embodiment, the control hole 4 opened on the bottom surface of the small tank b is closed by the float 14. That is, in this embodiment, as shown in FIG. 7, a float housing box 16 having a water passage hole 15 so as to surround the control hole 4 is attached to the outer bottom surface of the small tank b, and the control hole 4 is provided in the float housing box 16. It contains a spherical float 14 having a diameter larger than the diameter of.

Therefore, when replenishing water to the tank A, the large tank a
When the water level rises to the position of the float 14, the float 14 floats up and closes the control hole 4. In this embodiment, too, the water accumulated in the large tank a flows over the upper end of the partition plate 1 into the small tank b. There is no water supply until. Further, in this embodiment, when the flush water is supplied to the toilet bowl, the control hole 4 cannot be opened unless the water level of the large tank a is lower than the bottom surface of the small tank b.
The lowering of the water level starts only when the water level of the large tank a drops below the bottom surface of the small tank b, and the water level difference between the large tank a and the small tank b can be further increased.

Therefore, in this embodiment, in addition to the small tank b and the control hole 4, the float 14 is also a component of the timing control device D for controlling the water supply start timing of the ball tap water tap C.

As in the third and fourth embodiments, the small tank b
When the control hole 4 is provided on the bottom surface of the small tank b by providing the bottom surface thereof with a space from the bottom surface of the tank A, the small tank b is a partition plate provided on the tank A as described above. Even if the inside of the tank A is not divided by 1 to form the fifth tank shown in FIG.
As in the embodiment, the tank b previously formed in a container shape is replaced with the tank A.
It is also possible to provide it by attaching it to an appropriate place inside, and as the attaching place, besides the ball tap water tap C as shown in FIG.

Next, FIG. 9 shows a sixth embodiment. The first to fifth embodiments described so far are the ball tap water faucet C.
The spout 2 and the float 3 are separately arranged on the large tank a side and the small tank b side, while both 2 and 3 are arranged on the small tank b side. A lower part of the partition plate 1 for partitioning the tank b is projected toward the large tank a side, and a through hole 18 for opening and closing from the large tank a side by a flapper valve 17 is opened in the step portion, and a weight 19 is attached to the flapper valve 17. Has been.

Therefore, this device opens the drain valve B to supply the flush water to the toilet bowl, the water level on the large tank a side is lowered, and the water pressure on the small tank b side is the water pressure on the large tank a side and the force of the weight 19. When the situation becomes better, the flapper valve 17 is pushed open by the water pressure on the small tank b side, the water on the small tank b side is discharged to the large tank a side, and the water level on the small tank b side begins to drop, and the float 3 Starts to descend and its buoyancy stops acting on the valve element of the ball tap water tap C,
The valve opens and the ball tap water tap C starts to supply water to the tank A.

That is, in this embodiment, water is supplied to the tank A from the time when the drain valve B is opened until the water pressure on the small tank b side exceeds the water pressure on the large tank a side and the force of the weight 19. It is delayed by the time difference, and the tank b, the flapper valve 17 and the weight 19 attached to the flapper valve 17 constitute a timing control device D for controlling the water supply start timing of the ball tap water tap C.

Further, when water is supplied to the tank A, water is supplied from the ball tap faucet C to the small tank b side, but water flows from the small tank b side to the large tank a side via the flapper valve 17, Water will also begin to be stored in the large tank a side. When the water pressure on the large tank a side and the force of the weight 19 exceed the water pressure on the small tank b side, the flapper valve 17 is closed once, but since the water supply to the small tank b side continues, the flapper valve 17 is restarted. Is opened and the flapper valve 17 is repeatedly opened and closed several times to reach the water stop level, so that the water supply from the ball tap water tap C is stopped. In addition, 17a is a small hole, and the large tank side a and the small tank side b finally settle to the same water level through this small hole 17a.

Next, FIGS. 10 and 11 show a seventh embodiment, in which the tank A is divided into a large tank a and a small tank b to reduce the water level on the small tank b side as in the above embodiments. Unlike the case where the water supply to the ball tap C is delayed by utilizing the delay, the float 3 is allowed to float within a predetermined range, and the operation of the ball tap water tap C is delayed by the amount of the floating.

That is, in the seventh embodiment, the ball tap water tap C has a valve body of the pilot valve 20 in the middle of the operation arm 11 provided so as to rotate up and down with one end as a fulcrum.
20 'is connected to open the pilot valve 20 by rotating the operating arm 11 downward to open the main valve 21 of the diaphragm, and close the pilot valve 20 by rotating upward to close the main valve 21. A guide rod 24 provided with stoppers 22 and 23 at both upper and lower ends is provided at the tip of the operating arm 11 so as to be closed, and the float 3 is slidably inserted through the guide rod 24. .

Therefore, as shown in FIG. 10, when the water level is still stopped, the float 3 hits the upper stopper 22 of the guide rod 24, and the buoyant force pushes up the actuating arm 11 in the direction to rotate the pilot arm upward. 20 is closed and as a result the main valve
Although 21 is closed, when the drain valve (not shown) is opened and the water in the tank A is supplied to the toilet bowl and the water level in the tank A drops, the float 3 is guided by the guide rod 24 and descends. Then, when the position (b) of the lower stopper 23 is reached, the weight of the float 3 is added to the guide rod 24 and the operating arm 11 is rotated downward to open the pilot valve 20 and open the main valve 21. At this time, when the float 3 descends and moves away from the upper stopper 22, the buoyancy of the float 3 does not act on the valve body 20 'of the pilot valve 20, but the float 3 descends to reach the lower stopper 23. The closed state is maintained by the water pressure of the pressure chamber 25 formed between the main valve 21 and the pilot valve 20.

That is, in this embodiment, the start of water supply to the tank A is delayed by the time difference from the start of supplying flush water to the toilet bowl until the float 3 reaches the position (b).
Therefore, the timing of water supply start can be adjusted by setting the position (b), and by setting the position (b) near the bottom of the tank, the start timing of water supply to the tank is almost completed It can be the point of time. Therefore, in this embodiment, the guide rod 24, the float 3, and the lower stopper 23 provided on the guide rod 24 constitute a timing control device D for controlling the water supply start timing of the ball tap water tap C.

On the other hand, when water is supplied to the tank A, the tank A is
Only the float 3 rises as the inner water level rises, and when the float 3 reaches the position (a) of the upper stopper 22, the operating arm 11 is operated in conjunction with the guide rod 24 to close the pilot valve 20 and close the main valve 21. To close the water supply to the ball tap water tap C. Incidentally, (26) is a small hole provided in the diaphragm constituting the main valve 21.

In all the embodiments described above, ball tap water taps are used as replenishing devices for washing water to the tank, but an electrically openable on-off valve may be provided in the water supply pipe. In this case, it is possible to detect the tank water level with a pressure sensor and generate a signal when the end of drainage is detected to electrically open the on-off valve, or measure the tank discharge time in advance. The opening of the on-off valve can be controlled using a timer or the like.

Further, the pressure sensor detects the pressure in the toilet trap, and when the negative pressure caused by the siphon disappears, the on-off valve is opened electrically, or the time from the drain valve opening to the end of the siphon is set in advance. It is also possible to measure and control the opening of the on-off valve using a timer or the like.

On the other hand, the drain valve B is not provided with the above-mentioned slow closing mechanism 10 and it is of course possible to use a general flapper valve. Further, the drain valve B is provided with an overflow pipe integrally with the tank A. It is also optional to supply a part of the water to be supplied to the toilet bowl for sealing water through an overflow pipe. In this case, the water for sealing water is naturally in tank A.
It will be supplied after the end of drainage or siphoning.

[0047]

[Effect] Since the present invention is configured as described above, the following effects can be obtained. (1). When the flush water stored in the tank is supplied to the toilet bowl, water will be replenished to the tank immediately before or after the drainage of the tank is completed, or in the toilet drainage channel associated with the toilet bowl cleaning. Since the siphon phenomenon ends or immediately before it ends, there is no need to unnecessarily flush the water supplied to the tank with the flush water supply to the toilet bowl. Waste water corresponding to chasing water in the tank-type toilet bowl water supply device can be deleted or reduced, and water can be saved.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of a toilet flushing water supply device showing a first embodiment of the present invention, showing a state before operation.

FIG. 2 is a cross-sectional view showing a state of supplying flush water to a toilet bowl.

FIG. 3 is a sectional view showing a state of water supply to a tank.

FIG. 4 is a cross-sectional view showing a second embodiment of the invention before it is actuated.

FIG. 5 is a cross-sectional view showing a state of supplying wash water.

FIG. 6 is a sectional view showing a third embodiment.

FIG. 7 is a sectional view showing a fourth embodiment.

FIG. 8 is a sectional view of an essential part showing a fifth embodiment.

FIG. 9 is a sectional view showing a sixth embodiment.

FIG. 10 is a sectional view of an essential part showing a seventh embodiment, showing a state before operation.

FIG. 11 is a cross-sectional view showing a state of water supply to the tank.

[Explanation of symbols]

 A: Tank B: Drain valve C: Wash water supply device (ball tap water tap) D: Timing control device

Claims (7)

[Claims] 1. A tank for storing cleaning water, the tank having a drain valve at the bottom thereof, the tank communicating with the toilet via the drain valve, and the cleaning water supplied to the tank based on the supply of the cleaning water to the toilet. A flushing water replenishing device for replenishing the water is supplied to the toilet bowl by opening the drain valve so that the flushing water replenishing apparatus replenishes the flushing water to the tank based on the water supply to the toilet bowl. In the toilet flush water supply apparatus described above, the toilet flush water supply apparatus is provided with a timing control device for controlling the water supply start timing of the flush water replenishment apparatus at the time when the drainage of the tank is completed or is about to be completed. 2. A tank for storing wash water, the tank having a drain valve at the bottom thereof, the tank communicating with the toilet via the drain valve, and the wash water supplied to the tank based on the supply of the wash water to the toilet. A flushing water replenishing device for replenishing the water is supplied to the toilet bowl by opening the drain valve so that the flushing water replenishing apparatus replenishes the flushing water to the tank based on the water supply to the toilet bowl. The water supply device for flushing the toilet bowl, which is provided with a timing control device for controlling the water supply start timing of the flush water replenishing device at the time when the siphon phenomenon that occurs in the trap drainage channel of the toilet bowl when the toilet bowl is washed ends or is about to end A water supply device for cleaning a toilet bowl. 3. The water supply device for toilet bowl cleaning according to claim 1, wherein the water supply start timing of the cleaning water supply device is detected based on the detection of the water level in the tank by the float. 4. The water supply device for toilet bowl cleaning according to claim 1, wherein the water supply start timing of the cleaning water supply device is detected based on the detection of the water level in the tank by the pressure sensor. 5. The toilet flush water supply apparatus according to claim 1, wherein the water supply start timing of the flush water supply apparatus is detected based on the tank discharge time obtained from the test data. 6. The water supply device for flushing toilet according to claim 2, wherein the water supply start timing of the flush water replenishing device is detected based on the pressure detection in the trap drainage channel of the toilet bowl. 7. The toilet flush according to claim 2, wherein the flush water supply start timing of the flush water replenishing device is detected based on the time from the occurrence of siphon in the trap drainage channel of the toilet determined from the test data to the end thereof. Water supply device.