Water-metering cutoff device

Description: TECHNICAL FIELD [Detailed description of the invention]

【0001】

[Technical field to which the invention belongs]

The present invention relates to a quantitative water stop device that automatically stops water supply when a certain amount of water is supplied, and more particularly to a quantitative water stop device having a form in which a water channel is opened and closed by an electric drive valve such as a solenoid valve.

【0002】

[Conventional technology]

Conventionally, in various water supply devices, a quantitative water stop device that automatically stops water supply when a certain amount of water is supplied has been used. For example, in a faucet or the like in a bathroom washing place, water discharge (water supply) is started by operating a push button, and water discharge is automatically stopped when one cup of water is discharged from a 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 the flush valve (toilet bowl cleaning device) that supplies flush water to the toilet bowl to clean the toilet bowl, a certain amount of water is supplied when water supply is started by button operation, and then the water supply is automatically stopped. It has become.

【0003】

[Problems to be Solved by the Invention]

However, the quantitative water stop device conventionally used in this kind of water supply device mechanically measures the amount of water supply and mechanically closes the valve when the amount of water supply reaches a certain amount. For this reason, in addition to the problem that the amount of water supply that should be constant varies and the accuracy is insufficient, the structure is complicated and bulky, and because the structure is complicated, it is fragile and costly. There was a problem that it was expensive.

【0004】

[Means for solving problems]

The quantitative water blocking device of the present invention has been devised to solve such a problem. Therefore, in claim 1, the water channel is opened and closed by an electrically driven electric drive valve, and the electric drive valve is closed when the integrated flow rate of the water channel reaches the set flow rate after the valve is opened. It is a water stop device, and the electric drive valve is manually operated to open the valve non-electrically. On the other hand, a generator equipped with a water wheel that rotates with the water flow of the water channel is provided and based on the rotation of the water wheel. While generating electricity, a pulse is generated according to the rotation speed of the water turbine, and when the integrated flow rate of the water channel is detected by counting the pulse and reaches a set value, the electric drive valve is closed under the control of the control unit. It is characterized by supplying driving power for the valve and stopping the water supply.

【0005】

The second aspect of the present invention is characterized in that, in the first aspect, the electrically driven valve is a solenoid valve.

【0006】

In claim 3, in any one of claims 1 and 2, a storage means for storing the electric power generated by the generator is provided, and the electric drive valve is closed by using the storage means as a power source. It is characterized by having done it.

【0007】

The fourth aspect of the present invention is characterized in that, in the third aspect, the power storage means is a capacitor.

【0008】

According to claim 5, in any one of claims 1 to 4, the electric drive valve is a latch type valve that keeps the valve open and closed state after the valve is opened and closed. It is a feature.

【0009】

A sixth aspect of the present invention is characterized in that, in any one of the first to fifth aspects, the quantitative water blocking device is a toilet bowl cleaning device that supplies flush water to the toilet bowl to clean the toilet bowl.

【0010】

In claim 7, the toilet bowl cleaning device has, as the electric drive valve, a rim water supply valve that opens and closes a rim water supply channel for water supply to the rim of the toilet bowl. The rim water supply valve is closed when the integrated flow rate of the rim water supply channel reaches the set flow rate.

【0011】

According to claim 8, in claim 6, the cleaning device for the toilet bowl serves as the electric drive valve of the jet water supply channel for supplying water to the jet hole for jetting the cleaning water toward the drain trap portion of the toilet bowl. It has a jet water supply valve that opens and closes, and is characterized in that the jet water supply valve is closed when the integrated flow rate of the jet water supply channel reaches a set flow rate.

【0012】

In claim 9, the toilet bowl cleaning device uses the electric drive valve as the rim water supply valve for opening and closing the rim water supply channel for water supply to the rim of the toilet bowl, and the drain trap of the toilet bowl. It has a jet water supply valve that opens and closes a jet water supply channel for water supply to a jet hole that jets wash water toward a unit, and the control unit closes the rim water supply valve and of the jet water supply valve. It is characterized in that it is performed in conjunction with valve opening.

【0013】

A tenth aspect of the present invention is characterized in that, in the ninth aspect, the control unit opens the rim water supply valve in conjunction with the closing of the jet water supply valve. Here, the interlocking includes not only the case where the valve of one valve is closed at the same time as the valve of the other valve is opened, but also the case where the valve of the other valve is opened immediately before the valve is closed.

【0014】

[Action and Effect of Invention]

As described above, the quantitative water stop device according to claim 1 is provided with a water wheel that rotates according to the water flow of the water channel, generates a pulse according to the rotation speed of the water wheel, and detects the integrated flow rate of the water channel by counting the pulse. When the number of pulses reaches the set value, the electric drive valve is closed to stop the water supply. In this fixed quantity water stop device, the count number of pulses is proportional to the integrated flow rate of the water channel. Therefore, by setting the above set value to an appropriate value, it is possible to reliably stop the water supply when the integrated flow rate, that is, the set flow rate required by the discharge water flow rate is reached. That is, it is possible to control the amount of water supply to a constant amount with high accuracy.

【0015】

Further, in the present invention, since the integrated flow rate of the water channel is detected based on the number of generated pulses, the quantitative water stop device can be compactly configured with a simple structure, and is configured as an inexpensive device with few failures. Can be done. Furthermore, since the water turbine is used not only as a means for generating a pulse but also a generator is configured by using the water turbine, the electric power for closing the electric drive valve is generated by using the water flow of the water channel. It can be generated by the rotation of.

【0016】

Further, in the present invention, the electrically driven valve is manually operated to open the valve mechanically or non-electrically, which makes it possible to eliminate the need for a power source for opening and closing the electrically driven valve. The configuration of the water stop device can be further simplified, and when using the fixed-quantity water stop device, it is only necessary to apply an operating force only at the start of water flow to start water supply, and water is automatically supplied when a certain amount of water is supplied. It can be stopped. That is, although it is a device that opens and closes a water channel by opening and closing an electric drive valve to supply a certain amount of water, it is possible to eliminate the need for special power supply and electrical wiring work. In the present invention, the manual operation is a concept including not only manual operation but also foot operation and other operations by a part of the human body.

【0017】

In the present invention, the electric drive valve can be a solenoid valve (claim 2). Further, in the present invention, a storage means for storing the electric power generated by the generator can be provided, and the electric drive valve can be used as a power source to supply the drive power for closing the valve (claimed). Item 3). In this way, a special power source for operating the electric drive valve to close the valve is not required separately, and the configuration of the fixed quantity water stop device can be further simplified.

【0018】

Here, a capacitor can be preferably used as the power storage means (claim 4). In the present invention, the solenoid valve can be a latch-type valve that holds the valve open and closed states without power supply after the valve is opened and closed (claim 5).

【0019】

The quantitative water stop device of the present invention can be suitably used as a cleaning device for toilet bowls (claim 6). In this case, the necessary and appropriate amount of washing water can be reliably supplied to the toilet bowl to perform good cleaning of the toilet bowl.

【0020】

In this case, as an electric drive valve, a rim water supply valve that opens and closes the rim water supply channel for water supply to the rim of the toilet bowl is provided, and the rim water supply valve is opened and closed to supply wash water to the rim with the required amount of water. be able to. (Claim 7). Alternatively, as an electric drive valve, a jet water supply valve for opening and closing a jet water supply channel for water supply to a jet hole for jetting wash water toward the drain trap portion of the toilet bowl is provided, and the jet is jetted by opening and closing the jet water supply valve. Water can be supplied to the holes with the required amount of water (claim 8).

【0021】

Furthermore, as the electric drive valve, a rim water supply valve and a jet water supply valve can be provided so that the rim water supply valve is closed and the jet water supply valve is opened in conjunction with each other (claim 9). .. In this way, the rim water supply and the jet water supply can be switched at an appropriate timing, and the toilet bowl cleaning can be performed more efficiently. In this case, the rim water supply valve can be opened in conjunction with the closing of the jet water supply valve (Claim 10).

【0022】

[Example]

Next, examples of the present invention will be described in detail with reference to the drawings. In FIG. 1, 10 is a quantitative water stop device, 12 is a water channel, and a water supply port 14 is formed at the tip. A solenoid valve 16 as an electric drive valve and a generator 18 are provided on the water channel 12. The generator 18 has a water turbine 20 that rotates with a water stream, and generates electricity based on the rotation of the water turbine 20.

【0023】

In the present invention, the rotation of the water turbine 20 in the generator 18 also generates a pulse corresponding to the rotation speed of the water turbine 20. The generated pulse is counted by the pulse counter 21, and when the number of pulses reaches the set value, the controller (control unit) 24 issues a valve closing signal to the valve driving unit 26, and the solenoid valve 16 closes the valve. Be done. At this point, the passage of water through the channel 12 is stopped. That is, the water supply from the water supply port 14 is stopped.

【0024】

The pulse generated by the rotation of the water turbine 20 corresponds to the integrated flow rate of water flowing through the water channel 12, and therefore, by stopping the water flow through the water channel 12 when the number of pulses reaches the set value, the water supply port 14 can be used. Water can be supplied at a reliably set flow rate.

【0025】

In this example, the capacitor 22 is used as a storage means for storing the electric power generated by the generator 18. The solenoid valve 16 is closed by the driving power supplied to the capacitor 22 as a power source. However, it is also possible to use a power storage means other than the capacitor 22.

【0026】

FIG. 2 shows the configuration of the solenoid valve 16 in detail. In this example, the solenoid valve 16 is a latch type valve that holds the valve open state after the valve is opened and the valve closed state after the valve is closed in a state where no power is supplied. In the figure, 27 is a diaphragm type main valve body, and when the main valve body 27 is seated on the valve seat 28, the water channel 12 is blocked. That is, the upstream waterway 12a and the downstream waterway 12b are in a non-communication state.

【0027】

A back pressure chamber 30 is formed on the back side (upper surface side in the drawing) of the main valve body 27, and normally, the main valve body 27 is in a state of being seated on the valve seat 28 by the pressure inside the back pressure chamber 30. .. The back pressure chamber 30 and the downstream water channel 12b communicate with each other through a central hole 32 formed in the center of the main valve body 27, and the central hole 32 is closed by the plunger 33. It has become.

【0028】

In the main valve body 27, when the plunger 33 moves upward in the figure, the water inside the back pressure chamber 30 flows out to the downstream side water channel 12b, that is, the pressure inside the back pressure chamber 30 decreases, so that the upstream side water channel The valve is opened by the water supply pressure of 12a. On the other hand, when the plunger 33 moves downward in FIG. 2 and the central hole 32 is closed, the water in the upstream water channel 12a flows into the back pressure chamber 30 through the small hole formed in the main valve body 27, whereby the plunger 33 flows into the back pressure chamber 30. The pressure inside the back pressure chamber 30 increases, and finally the pressure causes the main valve body 27 to close the valve.

【0029】

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

【0030】

The plunger 33 is urged downward in the figure by the spring 38, that is, in the valve closing direction, and when it moves to the valve opening position, the urging force of the spring 38 is caused by the magnetic force of the latch magnet 40 provided inside the casing 36. It is held in its open state against the resistance. After moving to the valve closing position, the plunger 33 is held in the valve closing state by the urging force of the spring 38.

【0031】

The solenoid valve 16 of this example has a manual operation unit (operation rod) 42, and a magnet 44 is provided at the tip thereof, and the magnet 44 is attached by a spring 46 upward in the figure, that is, in a direction away from the plunger 33. It is being pushed. Here, the manual operation unit 42 is in a state of protruding upward from the casing 36.

【0032】

The solenoid valve 16 in this example can be mechanically opened by manual operation. That is, when the manual operation unit 42 is pushed downward by a hand, foot, etc. against the urging force of the spring 46 from the state shown in FIG. 2 (I), the plunger 33 is moved by the magnet 44 as shown in (II). It is pulled upward in the figure by a magnetic attraction force against the urging force of the spring 38. Then, the central hole 32 of the main valve body 27 communicates with the back pressure chamber 30, the pressure in the back pressure chamber 30 decreases, and the main valve body 27 opens.

【0033】

Further, as shown in (III), the plunger 33 pulled upward in the figure is held at the valve opening position by the magnetic force of the latch magnet 40. That is, when the manual operation unit 42 is pushed downward in the figure, the plunger 33 is held in the valve opening position and the water channel 12 is in a water flow state even if the manual operation unit 42 is then returned to the original position by the urging force of the spring 46. Retained.

【0034】

On the other hand, when the solenoid coil 34 is energized in the state of FIG. 2 (III), the plunger 33 is pushed downward in the figure by an electromagnetic repulsive force, which closes the central hole 32 of the main valve body 27. .. After that, the pressure in the back pressure chamber 30 gradually increases, and finally the main valve body 27 is seated on the valve seat 28. At this point, the water channel 12 is cut off and water flow is stopped. That is, the water supply from the water supply port 14 is stopped.

【0035】

The quantitative water stop device 10 of this example as described above generates a pulse according to the rotation speed of the water turbine 20, and closes the solenoid valve 16 to stop water flow when the pulse number reaches the set value. Therefore, the water supply can be reliably stopped when the integrated flow rate of the water channel, that is, the flow rate required for the discharge water flow rate is reached. That is, it is possible to control the amount of water supply to a constant amount with high accuracy.

【0036】

Further, in this example, since the integrated flow rate of the water channel 12 is detected based on the number of generated pulses, the quantitative water stop device 10 can be compactly configured with a simple structure, and can be configured as an inexpensive device with few failures. it can.

【0037】

Furthermore, since the water turbine 20 constitutes not only a pulse generating means but also a generator 18, it is possible to generate electric power required when the solenoid valve 16 is closed by using the water flow of the water channel 12.

【0038】

Further, in the quantitative water stop device 10 of this example, the electric power generated by the generator 18 is stored in the capacitor 22, and this is used as a power source to supply the driving power for closing the solenoid valve 16. Therefore, the configuration of the quantitative water stop device 10 can be further simplified without separately requiring a special power source for closing the solenoid valve 16.

【0039】

Further, since the solenoid valve 16 is a latch type valve that is mechanically opened by the manual operation unit 42 and that keeps the valve open and closed states, no power supply is required to open and close the solenoid valve 16. The configuration of the quantitative water stop device 10 can be further simplified, and when using the quantitative water stop device 10, it is only necessary to manually operate the water stop device 10 to start water supply, and then a certain amount of water is supplied. Water supply can be stopped automatically at the place where it is damaged.

【0040】

FIG. 3 shows an example in which the quantitative water stop device is configured as the toilet bowl cleaning device 48. In the figure, 50 is a toilet bowl, which has a rim 52 along the upper peripheral edge. A rim water channel 54 is formed inside the rim 52, and water spray holes 56 communicating with the rim water channel 54 are formed at predetermined intervals in the circumferential direction on the lower end surface of the rim 52, and are guided to the rim water channel 54. The washing water is vigorously sprayed into the toilet bowl 50 from the water spray holes 56, thereby cleaning the inside of the toilet bowl. Reference numeral 58 denotes a jet hole for vigorously injecting wash water toward the drain trap portion 60. The injection of the wash water from the jet hole 58 fills the drain trap portion 60 with water, and the siphon action is assisted.

【0041】

In this example, the water channel 12 is branched into a rim water supply channel 12R and a jet water supply channel 12J in the downstream portion of the generator 18, and wash water is supplied to the rim water channel 54 and the jet hole 58 through each. There is.

【0042】

Each of the rim water supply passage 12R and the jet water supply passage 12J is provided with a solenoid valve (rim water supply valve) 16A and a solenoid valve (jet water supply valve) 16B as electric drive valves. The rim water supply channel 12R and the jet water supply channel 12J are each opened and closed.

【0043】

Here, the solenoid valve 16A has the same structure as that of the solenoid valve 16 shown in FIG. 2, and the same solenoid valve 16B is also used. However, the solenoid valve 16B may be of a form that does not have a manual operation unit 42 and opens and closes only by an electromagnetic attraction force and a repulsion force due to energization of the solenoid coil 34.

【0044】

In this example, the power generated by the generator 18 is charged into the capacitor 22 as shown in FIG. 4, and the solenoid valves 16A and 16B are closed-driven by the drive power supplied from the capacitor 22 as a power source. ..

【0045】

Further, the solenoid valves 16A and 16B are driven to close when the number of pulses generated by the rotation of the water turbine 20 in the generator 18 reaches the number of pulses set corresponding to each. That is, when the integrated flow rate of the washing water passing through the rim water supply channel 12R reaches the set flow rate, the solenoid valve 16A closes and the integrated flow rate of the washing water passing through the jet water supply channel 12J becomes the set flow rate. When it reaches, the solenoid valve 16B is closed.

【0046】

In this example, as shown in FIG. 5, the solenoid valves 16A and 16B are opened and closed at different timings. More specifically, when the solenoid valve 16A is first manually opened, a flow of water is generated in the water channel 12, the turbine 20 of the generator 18 rotates, a pulse is generated, counting starts, and power is generated. Machine 18 starts power generation. At the same time, wash water is supplied to the rim water channel 54 through the rim water supply channel 12R, and the wash water is vigorously sprayed into the toilet bowl 50 from the water injection hole 56.

【0047】

When the number of pulses set corresponding to the solenoid valve 16A is reached, the solenoid valve 16A is closed by the controller 24, and the water supply to the rim water passage 54 through the rim water supply passage 12R is stopped. At the same time, the solenoid valve 16B is opened and the cleaning water is supplied to the jet hole 58 through the jet water supply channel 12J, and the cleaning water is vigorously injected into the drain trap portion 60 through the jet hole 58. As a result, the siphon action is assisted, and the sewage inside the toilet bowl 50 is discharged together with the jetted washing water.

【0048】

Thus, after the jet injection of the washing water from the jet hole 58 continues for a certain period of time, when the number of pulses set corresponding to the solenoid valve 16B is reached, the solenoid valve 16B is closed and the solenoid valve 16B is closed. The valve 16A is opened again, and the supply of wash water is switched from the jet water supply channel 12J to the rim water supply channel 12R.

【0049】

Now, when the set amount of water flows through the rim water supply channel 12R again in this way, the solenoid valve 16A closes again, and one cycle of toilet bowl cleaning ends here. It should be noted that the above is only an example of the toilet bowl cleaning device, and the toilet bowl cleaning device 48 is provided in another form, and further to the rim water supply channel 12R and the jet water supply channel 12J in another pattern. It is also possible to switch the water supply to clean the toilet bowl.

【0050】

Furthermore, the toilet bowl cleaning device 48 as the fixed quantity water stop device 10 of this example interlocks the closing of the solenoid valve 16A and the opening of the solenoid valve 16B, and further linking the closing of the solenoid valve 16B and the opening of the solenoid valve 16A. This is done to switch between rim water supply and jet water supply at an appropriate timing, which makes it possible to efficiently clean the toilet bowl.

【0051】

Examples of the present invention have been described in detail above, but this is merely an example. For example, in the above example, the electric power generated by the generator is stored in a capacitor, and this is used as a power source to close the electric drive valve such as an electromagnetic valve. However, the electric power generated by the generator is directly used as the drive power. It is also possible to supply electric power to an electric drive valve or store electric power in a storage means other than a capacitor and use this as a power source to close the electric drive valve.

【0052】

Further, in the examples of FIGS. 3 and 4, an example in which the quantitative water stop device is configured as a cleaning device for a toilet bowl is shown, but the quantitative water stop device of the present invention stops water discharge when a certain amount of water is discharged from the faucet. It can also be applied as a quantitative water stop device for storing a certain amount of water in a bathtub, as a quantitative water stop device for storing a certain amount of water, and as a quantitative water stop device for various other water supply devices or for various purposes. The present invention can be configured in a form in which various modifications are made without departing from the gist of the present invention.

[Simple explanation of drawings]

[Figure 1]

It is a figure which shows the quantitative water stop device which is one Example of this invention.

[Figure 2]

It is a figure which shows the concrete structure of the solenoid valve in FIG. 1 together with the operation.

[Fig. 3]

It is a figure which shows the example which configured the quantitative water stop device of this invention as a washing device of a toilet bowl.

[Fig. 4]

It is a block diagram of the component of the toilet bowl cleaning device of FIG.

[Fig. 5]

It is a time chart which shows the operation of the toilet bowl cleaning apparatus of FIG. 3 and FIG.

[Explanation of symbols]

10 Quantitative water stop device 12 waterways 12R rim water supply channel 12J jet water supply channel 16 Solenoid valve 16A solenoid valve (rim water supply valve) 16B solenoid valve (jet water supply valve) 18 generator 20 water wheel 22 Capacitor 24 Controller (control unit) 48 Cleaning equipment 50 toilet bowl 52 rim 58 Jet hole 60 Drain trap section