JP2002201691A - Water-metering cutoff device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a water-metering cutoff device with a simple, small and inexpensive structure resistant to damage, for stopping the supply of water when the total flow of water fed since the start of feed has reached a certain preset quantity. SOLUTION: A toilet flushing device 48 serving as a water-metering cutoff device is provided with a generator 18 which generates electric power by rotating a water turbine 20 using a stream of water in a channel 12. A capacitor is charged with the electric power generated by the generator 18; when a charging voltage has reached a set value, driving power for closing valve is supplied to a solenoid valve 16 under control of a controller 24 to stop the supply of water.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fixed-quantity water stopping device for automatically stopping water supply when a predetermined amount of water is supplied, and more particularly, to a fixed water stopping device in which a water channel is opened and closed by an electrically driven valve such as a solenoid valve. Related to the device.

[0002]

2. Description of the Related Art Heretofore, a fixed-quantity water stopping device that automatically stops water supply when a predetermined amount of water is supplied in various water supply devices has been used. For example, in a faucet or the like in a washing room in a bathroom, water discharge (water supply) is started by operating a push button, and water discharge is automatically stopped when water is discharged for one bath tub. Alternatively, when water is supplied to the bathtub, the water supply is automatically stopped when a certain amount of bathtub water is accumulated, that is, when a certain amount of water is supplied to the bathtub. Furthermore, in a flush valve (a flushing device for a toilet) that supplies flush water to the toilet to flush the toilet, a fixed amount of water is supplied when water is started by a button operation, and then the water supply is automatically stopped. Has become.

[0003]

However, the constant water stoppage device conventionally used in this type of water supply device measures the amount of water supply mechanically, and mechanically opens a valve when the amount of water supply reaches a certain amount. In addition to the problem that the amount of water supply, which should be constant, is not sufficient in terms of accuracy due to the valve closing, the structure is complicated and bulky, and the structure is complicated. Fragile to be
There was also a problem that the cost was high.

[0004]

The quantitative water stoppage device of the present invention has been devised to solve such a problem. According to a first aspect of the present invention, a water passage is opened and closed by an electrically driven valve that is electrically driven, and when the integrated flow rate of the water passage reaches a set flow rate after the valve is opened, the electric drive valve is closed. A water stopping device, wherein a generator is provided for generating power by rotating a water turbine by the water flow in the water channel, and charging the power generated by the generator to a capacitor, and when the charging voltage reaches a set value, a control unit. Under the above control, the electric drive valve is supplied with drive power for valve closing to stop water supply.

According to a second aspect, in the first aspect, the electric drive valve is an electromagnetic valve.

A third aspect of the present invention is characterized in that in any one of the first and second aspects, the electrically driven valve is closed using the charged capacitor as a power supply.

According to a fourth aspect of the present invention, in any one of the first to third aspects, the electric drive valve is non-electrically opened by manual operation.

According to a fifth aspect of the present invention, there is provided a latch according to any one of the first to fourth aspects, wherein the electrically driven valve maintains the open and closed states without power supply after opening and closing. It is a type valve.

A sixth aspect of the present invention is characterized in that, in any one of the first to fifth aspects, the fixed-quantity water stopping device is a toilet flushing device that supplies flush water to the toilet to perform flushing. .

According to a seventh aspect of the present invention, in the sixth aspect, the toilet flushing device has, as the electric drive valve, a rim water supply valve for opening and closing a rim water supply passage for supplying water to a rim of the toilet. The rim water supply valve is closed when the integrated flow rate of the rim water supply passage reaches a set flow rate.

According to an eighth aspect of the present invention, in the sixth aspect, the flushing device for a toilet is provided as the electric drive valve for supplying water to a jet hole for jetting flushing water toward a drain trap section of the toilet. A jet water supply valve for opening and closing the jet water supply path is provided, and the jet water supply valve is closed when an integrated flow rate of the jet water supply path reaches a set flow rate.

According to a ninth aspect of the present invention, in the sixth aspect of the present invention, the toilet flushing device is configured to open and close a rim water supply passage for supplying water to a rim of the toilet as the electric drive valve,
A jet water supply valve for opening and closing a jet water supply path for supplying water to a jet hole for jetting washing water toward a drain trap section of the toilet, wherein the control section closes the rim water supply valve. And the opening of the jet water supply valve is performed in conjunction with each other.

A tenth aspect of the present invention relates to the ninth aspect,
The controller is configured to open the rim water supply valve in conjunction with the closing of the jet water supply valve. Here, the term "interlocking" includes not only the case where one valve is closed and the other valve being opened simultaneously, but also the case where the other valve is opened immediately before the closing of one valve.

[0014]

As described above, in the quantitative water stopping device according to the first aspect of the present invention, the power generated by providing the power generator in the water flow of the water channel is stored in the capacitor, and when the voltage reaches the set value, the electric power is generated. The drive valve is closed.In this fixed water stop device, the voltage of the condenser increases in proportion to the integrated flow rate of the water channel. Then, when the integrated flow rate, that is, the water discharge flow rate reaches the set flow rate to be obtained, the water supply can be reliably stopped. That is, the water supply amount can be controlled to a constant flow rate with high accuracy.

In the present invention, since the integrated flow rate of the water channel is detected based on the amount of charge to the condenser,
The fixed-quantity water stopping device can be configured compactly with a simple structure, and can be configured as an inexpensive device with few failures.
Here, the electric drive valve may be an electromagnetic valve (claim 2).

Further, not only the condenser can be used as a means for detecting the integrated flow rate, but also the electric drive valve can be closed by using the condenser as a power source. With this configuration, a power supply for closing the electrically driven valve is not required separately, and the configuration of the device can be further simplified. In particular, when the electrically driven valve such as the solenoid valve is manually and mechanically and non-electrically opened (claim 4), a power supply for opening and closing the solenoid valve is unnecessary. This makes it possible to further simplify the device configuration. In addition, although a water channel is opened and closed by opening and closing an electromagnetic valve and the like to supply a fixed amount of water, a special power supply and electric wiring work can be omitted. Here, the manual operation is a concept including an operation by a foot, an operation by a part of a human body as well as an operation by a hand.

The quantitative water stoppage device of the present invention can be suitably used as a toilet flushing device. In this case, it is possible to supply the necessary and appropriate amount of washing water to the toilet without fail and to perform the toilet flushing satisfactorily.

In this case, a rim water supply valve for opening and closing a rim water supply passage for supplying water to the rim of the toilet bowl is provided as an electric drive valve. Water can be supplied (claim 7). Alternatively, a jet water supply valve for opening and closing a jet water supply path for supplying water to a jet hole for jetting washing water toward a drain trap portion of a toilet as an electric drive valve is provided, and the jet water supply valve is opened and closed to open and close the jet water supply valve. The washing water can be supplied with a necessary amount of water for the holes (claim 8).

Furthermore, a rim water supply valve and a jet water supply valve are provided as electric drive valves, and the closing of the rim water supply valve and the opening of the jet water supply valve can be performed in conjunction with each other. 9). In this way, the rim water supply and the jet water supply can be switched at an appropriate timing, and the toilet flushing can be performed more efficiently.

In this case, it is possible to open the rim water supply valve in conjunction with the closing of the jet water supply valve. In the present invention, the electric drive valve may be a latch-type valve that holds the open and closed states without power supply after opening and closing the valve (claim 5).

[0021]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, embodiments of the present invention will be described in detail with reference to the drawings. In FIG. 1, reference numeral 10 denotes a fixed-quantity water stopping device, 12 denotes a water channel, and a water supply port 14 is formed at the tip. An electromagnetic valve 16 as an electric drive valve and a generator 18 are provided on the water channel 12.
Are provided. The generator 18 is a water wheel 2 that rotates by the water flow.
0, and generates power based on the rotation of the water turbine 20. The power generated at that time is proportional to the integrated flow rate of the water channel 12.

The electric power generated by the generator 18 is
2 and when the charging voltage of the capacitor 22 reaches a set value as shown in FIG.
6 is driven, and the solenoid valve 16 is
Is supplied with drive power. Here, the solenoid valve 16 is closed, and the flow of water through the water channel 12 is stopped. That is, the water supply from the water supply port 14 stops.

The charging voltage of the capacitor 22 is the
8 increases in proportion to the total rotation amount of the water wheel 20, that is, the integrated flow rate of the water channel 12. When the charging voltage reaches the set value, as shown in FIG.
As a result, the electromagnetic valve 16 is closed.

FIG. 3 specifically shows the structure of the solenoid valve 16. In this example, the solenoid valve 16 is a latch-type valve that maintains the open state after the valve is opened and the closed state after the valve is closed without power supply. In the figure, reference numeral 27 denotes a diaphragm-type main valve body. When the main valve body 27 is seated on a valve seat 28, the water passage 12 is shut off. That is, the upstream water passage 12a and the downstream water passage 12b are in a non-communication state.

A back pressure chamber 30 is formed on the back side (upper side in the figure) of the main valve body 27. Normally, the main valve body 27 is seated on the valve seat 28 by the pressure inside the back pressure chamber 30. In state. The back pressure chamber 30 and the downstream water passage 12b communicate with each other through a center hole 32 formed in the center of the main valve body 27, and the center hole 32 is closed by a plunger 33. Has become.

When the plunger 33 moves upward in the figure, the water in the back pressure chamber 30 is removed from the main valve body 27 by the downstream water passage 12b.
, That is, when the pressure inside the back pressure chamber 30 decreases, the valve opening operation is performed by the supply pressure of the upstream water passage 12a. On the other hand, when the plunger 33 moves downward in FIG.
a through the small holes formed in the main valve body 27.
0, whereby the pressure inside the back pressure chamber 30 increases, and the main valve body 27 finally closes due to the pressure.

Numeral 34 denotes a solenoid coil of the solenoid valve 16, and the plunger 33 is pushed downward in the drawing by the electromagnetic repulsive force of the solenoid coil.

The plunger 33 is urged downward in the drawing, ie, in the valve closing direction, by a spring 38. When the plunger 33 is moved to the valve opening position, the spring 38 Is held in its open state against the urging force of the valve.
After the plunger 33 has moved to the valve closing position, the plunger 33 is held in the valve closed state by the urging force of the spring 38.

The solenoid valve 16 of this embodiment has a manual operation part (operation rod) 42, a magnet 44 is provided at the tip thereof, and these are directed upward by a spring 46 in FIG. It is urged away. Here, the manual operation unit 42 is
It is in a state of projecting upward.

The solenoid valve 16 of this embodiment can be opened mechanically (non-electrically) by manual operation. That is, the manual operation unit 42 is moved from the state shown in FIG.
If you push down with your hand, foot, etc. against the urging force of 6,
As shown in (II), the plunger 33 is pulled upward by a magnet 44 by magnetic attraction against the urging force of the spring 38 by the magnet 44. Then, the center hole 32 of the main valve body 27 is in communication with the back pressure chamber 30, and
The pressure in the back pressure chamber 30 decreases, and the main valve body 27 opens.

As shown in (III), the plunger 33 pulled up in the figure is held at the valve opening position by the magnetic force of the magnet 40. That is, the manual operation unit 4
2 is pushed downward in the drawing, the plunger 33 is kept at the valve-open position even if the manual operation unit 42 returns to the original position by the urging force of the spring 46, and the water passage 12 is kept in a water-flowing state.

On the other hand, when the solenoid coil 34 is energized in the state shown in FIG. 3 (III), the plunger 33 is pushed downward in the figure by the electromagnetic repulsive force, whereby the center hole 32 of the main valve body 27 is opened. Will be closed. Thereafter, the pressure in the back pressure chamber 30 gradually increases, and finally the main valve body 27
Is seated on the valve seat 28. Here, the water channel 12 is shut off, and the flow of water stops. That is, water supply port 1
Water supply from 4 stops.

After the water supply is stopped, it is preferable to completely discharge the condenser 22 by operating the reset button, or to automatically discharge the capacitor 22 automatically during the control operation of the controller 24 after the water supply is stopped.

In the fixed water stop device 10 of the present embodiment, since the charging voltage of the condenser 22 increases in proportion to the integrated flow rate of the water passage 12, the set value is appropriately set so that the total water supply can be performed. Water supply can be reliably stopped when the flow rate reaches the set flow rate. That is, the water supply amount can be controlled to a constant water supply amount with high accuracy.

Further, in this embodiment, since the integrated flow rate is detected based on the amount of charge to the condenser 22, the fixed-quantity water stopping device 10 can be compactly constructed with a simple structure, and has a small number of failures and is inexpensive. Can be configured.

Furthermore, since the condenser 22 is used not only as a means for detecting the integrated flow rate but also as a power source to close the solenoid valve 16, the solenoid valve 1 is closed.
The power supply for closing the valve 6 is not required separately, and the configuration of the quantitative water stopping device 10 can be further simplified.

In this embodiment, in particular, the solenoid valve 16 is
2 is a latch-type valve that is mechanically opened by manual operation to the valve 2 and maintains the open and closed states.
6 does not require any power supply, so that the configuration of the quantitative water stoppage device 10 can be further simplified, and a special power supply and electric wiring work can be eliminated. In use, it is only necessary to apply an operating force only at the start of water supply to start water supply. Thereafter, water supply can be automatically stopped when a predetermined amount of water has been supplied.

FIG. 4 shows a fixed-quantity water-stopping device and a toilet-cleaning device 48.
Is shown as an example. In the figure, reference numeral 50 denotes a toilet having a rim 52 along the periphery of the upper end. Rim 5
A rim channel 54 is formed in the inside of the rim 2, and water spray holes 56 communicating with the rim channel 54 are formed at predetermined intervals in the circumferential direction at the lower end surface of the rim 52, and are guided to the rim channel 54. The flush water is rushed into the toilet 50 through the spray holes 56, thereby cleaning the inside of the toilet bowl. Numeral 58 denotes a jet hole for jetting flush water toward the drain trap section 60.
Is filled with water, and the siphon action is assisted.

In this embodiment, the water channel 12 is provided downstream of the generator 18 with the rim water channel 12R and the jet water channel 12J.
The cleaning water is supplied to the rim water passage 54 and the jet hole 58 through each of them.

Rim water supply channel 12R and jet water supply channel 12
Each of J is provided with an electromagnetic valve (rim water supply valve) 16A and an electromagnetic valve (jet water supply valve) 16B as electric drive valves, and the rim water supply passage 12R and the jet water supply passage are provided by the electromagnetic valves 16A and 16B. Each of the 12Js is opened and closed.

Here, the electromagnetic valve 16A has the same structure as the electromagnetic valve 16 shown in FIG. 3, and the same electromagnetic valve 16B is used. However, the solenoid valve 16B may be of a type that does not have the manual operation unit 42 and that opens and closes only with electromagnetic attraction and repulsion by energizing the solenoid coil 34.

In this example, the electric power generated by the generator 18 is charged into capacitors 22A and 22B provided corresponding to the solenoid valves 16A and 16B, as shown in FIG. When the charging voltage reaches the set value, the solenoid valves 16A and 16B are driven to be closed by the driving power supplied using the capacitors 22A and 22B as power supplies.

However, in this example, the solenoid valve 16B is opened by the drive power supplied to the solenoid coil 34. In this case, the solenoid valve 16B is opened by the electric power stored in the capacitor 22A. Is used as drive power to open the valve.

In this example, as shown in FIG. 6, the solenoid valves 16A and 16B are opened and closed at different timings. More specifically, when the solenoid valve 16A is first opened by manual operation, a flow of water is generated in the water passage 12 and the water wheel 20 of the generator 18 rotates, and the generator 1
8 starts power generation. At the same time, the flush water is supplied to the rim water passage 54 through the rim water supply passage 12R, and the flush water is rushed into the toilet 50 through the water spray hole 56.

When the charging voltage of the capacitor 22A corresponding to the solenoid valve 16A reaches a set value, the solenoid valve 16A is closed by the controller 24, and the water is supplied to the rim water passage 54 through the rim water passage 12R. Stop. At the same time, the solenoid valve 16B opens to supply the cleaning water to the jet hole 58 through the jet water supply passage 12J, and the cleaning water is rushed to the drain trap unit 60 through the jet hole 58. Thereby, the siphon action is assisted, and the wastewater in the toilet 50 is discharged together with the injected washing water.

After the jetting of the washing water from the jet hole 58 continues for a certain period of time, when the charging voltage of the capacitor 22B reaches the set value, the solenoid valve 16B closes, and at the same time, the solenoid valve 16A Is operated again to switch the supply of the washing water from the jet water supply passage 12J to the rim water supply passage 12R. The solenoid valve 16 at this time
Electric power for the valve opening operation of A is supplied using the capacitor 22B as a power supply. Now, in this way, the rim water supply channel 12
R, when the set flow rate of water flows again, the solenoid valve 1
6A operates to close the valve, and here, one cycle of toilet flushing is completed.

The above description is merely an example of a toilet flushing device, and the toilet flushing device 48 is merely an example.
Can be provided in another form, and the toilet can be washed by switching the water supply to the rim water supply passage 12R and the jet water supply passage 12J in still another pattern.

In the toilet flushing device 48 of the present embodiment, it is possible to supply the necessary and appropriate amount of flushing water to the toilet 50 without fail, and to perform the flushing of the toilet satisfactorily.
The rim water supply and the jet water supply are switched at an appropriate timing by interlocking and opening and closing the solenoid valve 16B and the electromagnetic valve 16B, respectively, so that the toilet flushing can be performed efficiently.

The embodiment of the present invention has been described in detail above, but this is merely an example. For example, in the embodiment shown in FIG. 4 and subsequent figures, an example in which the quantitative water stopping device is configured as the toilet flushing device 48 is shown. As a fixed water stop device for storing a fixed amount of water in a bathtub, or as a fixed water stop device for various other water supply devices or for various purposes. It is.

In the above example, the condenser 22 is used not only as a means for detecting the integrated flow rate, but also as a drive power source for the solenoid valve 16, but the electric power generated by the generator is directly used for driving the solenoid valve 16. The present invention can be configured in variously modified forms without departing from the gist thereof, such as being able to be used as a power supply or providing another power supply different from these.

[Brief description of the drawings]

FIG. 1 is a view showing a quantitative water stopping device according to an embodiment of the present invention.

FIG. 2 is a view showing the operation principle of the fixed amount water stopping device of FIG.

FIG. 3 is a diagram showing a specific configuration of the solenoid valve in FIG. 1 together with its operation.

FIG. 4 is a view showing an example in which the quantitative water stopping device of the present invention is configured as a toilet flushing device.

FIG. 5 is a block diagram of components of the toilet bowl cleaning apparatus of FIG. 4;

FIG. 6 is a time chart showing the operation of the toilet flushing device of FIGS. 4 and 5;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Fixed amount water stop device 12 Water path 12R Rim water supply path 12J Jet water supply path 16 Solenoid valve 16A Solenoid valve (Rim water supply valve) 16B Solenoid valve (Jet water supply valve) 18 Generator 20 Water turbine 22, 22A, 22B Condenser 24 Controller (Control part) 48 cleaning device 50 toilet 52 rim 58 jet hole 60 drain trap

Continued on the front page (72) Inventor Tomoyuki Mizuno 5-1-1 Koiehonmachi, Tokoname-shi, Aichi F-term in Inax Co., Ltd. (Reference) 2D039 AC04 BA08 DA04

Claims (10)

[Claims] 1. A fixed-quantity water stopping device that opens and closes a water channel with an electrically driven electric drive valve and closes the electric drive valve when the integrated flow rate of the water channel reaches a set flow rate after the valve is opened. A generator for generating power by rotating a water turbine in the water flow of the water channel is provided, and the power generated by the generator is charged to a capacitor.When the charging voltage reaches a set value, the capacitor is controlled by a control unit. A fixed-quantity water stopping device, characterized in that the electric drive valve is supplied with driving power for valve closing to stop water supply. 2. The fixed amount water stopping device according to claim 1, wherein the electric drive valve is a solenoid valve. 3. The fixed-quantity water stopping device according to claim 1, wherein the electrically driven valve is closed by using the charged capacitor as a power supply. 4. The fixed amount water stopping device according to claim 1, wherein the electrically driven valve is non-electrically opened by manual operation. 5. The latch-type valve according to claim 1, wherein the electrically driven valve holds the open and closed states without power supply after opening and closing the valve. A fixed-quantity water stopping device characterized by the above-mentioned. 6. The fixed-quantity water stopping device according to claim 1, wherein the fixed-quantity water stopping device is a toilet flushing device that performs flushing by supplying flush water to the toilet. 7. The rim water supply device according to claim 6, wherein the toilet flushing device has, as the electric drive valve, a rim water supply valve for opening and closing a rim water supply passage for supplying water to a rim of the toilet bowl. A fixed-quantity water stopping device characterized in that the rim water supply valve is closed when the integrated flow rate of the road reaches a set flow rate. 8. The toilet flushing device according to claim 6, wherein the toilet flushing device opens and closes a jet water supply passage for supplying water to a jet hole for jetting flushing water toward a drain trap section of the toilet as the electric drive valve. A jet water supply valve that performs the above operation, and when the integrated flow rate of the jet water supply passage reaches a set flow rate, the jet water supply valve is closed. 9. The toilet flushing device according to claim 6, wherein the toilet flushing device includes, as the electric drive valve, a rim water supply valve for opening and closing a rim water supply passage for supplying water to a rim of the toilet, and a drain trap portion of the toilet. A jet water supply valve that opens and closes a jet water supply path for supplying water to a jet hole that jets washing water toward the jet hole, and the control unit closes the rim water supply valve and opens the jet water supply valve. Characterized in that it is carried out in conjunction with the quantitative water stoppage device. 10. The fixed amount water stopping device according to claim 9, wherein the control unit opens the rim water supply valve in conjunction with closing of the jet water supply valve.