JP2002201681A - Feed water supply device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To actuate and open, without depending on the supply of power from a power source, the electrically driven valve provided on a channel and needed for the power-free operation of a feed water supply device which opens and closes the valve to supply water and to stop the supply of water. SOLUTION: The water supply device 10 has an electrically driven solenoid valve 16 provided on a channel 12; the valve 16 is opened and closed to supply water and to stop the supply of water. The valve 16 is forcibly driven to open by the manual operation of a manually operated member 42 to start the supply of water without depending on a power source that stores electric power in advance. A generator 20 with a water turbine 18 is provided on the channel 12 and the electric power generated by the generator 20 is supplied to the valve 16 to close the valve 16.

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,
More specifically, the present invention relates to a water supply device that performs water supply and water supply stoppage by opening and closing an electric drive valve such as an electromagnetic valve provided on a water channel.

[0002]

2. Description of the Related Art
The human body is sensed by the sensor, and based on the sensing, the electric drive valve provided on the water channel is automatically opened to supply water, and after a certain amount of water flows, the electric drive valve is closed. The water supply device is configured to stop the water supply, or the water supply device is configured to automatically close the electric drive valve to stop the water supply when the movement is deviated from the detection by the sensor. Have been.

However, in the case of this type of conventional water supply apparatus, a power supply for opening and closing the electrically driven valve is required. Electric wiring work for connection to the water supply device is required, and the work for installing the water supply device becomes large, and the installation cost of the water supply device becomes high. Furthermore, when a commercial power supply is used as a power supply, the water supply device becomes inoperable during a power failure.

On the other hand, when a battery such as a dry battery is used as a power source, the amount of power that can be stored in advance is limited.
If the human body is constantly sensed by using the electric power, the electric power will be consumed during that time. In addition, when the electric drive valve is opened, a large amount of electric power will be consumed temporarily. There is a problem that tends to cause cutting. In this type of water supply device, if the battery runs out, the water supply device becomes inoperable.

[0005] In this case, for example, it is conceivable to provide a generator provided with a water wheel that rotates in a water flow on a water channel. By doing so, it is possible to generate electric power using the water flow and to close the electric drive valve using the electric power. Alternatively, sensing by a sensor can be performed using the electric power generated there. Thus, even when a battery is used as a power source, power consumption of the battery can be suppressed, and the battery life can be extended.

However, even in such a case, electric power for opening the electric drive valve is still required, and it is difficult to perform the operation from the start of water supply to the stop of water supply with no power supply as long as a normal electric drive valve is used. .

[0007]

The water supply device of the present invention has been devised to solve such a problem.
According to a first aspect of the present invention, there is provided a water supply device which is provided with an electrically driven valve which is electrically driven on a water channel, and supplies and stops water supply by opening and closing the electrically driven valve. Is characterized in that the valve is forcibly opened and driven by human power to start water supply without using a power source in which electric power is stored in advance.

According to a second aspect of the present invention, in the first aspect, a generator provided with a water wheel rotating by a water flow is provided on the water channel, and the electric power generated by the generator is supplied to the electric drive valve. And the electric drive valve is closed.

According to a third aspect of the present invention, in the second aspect, a power storage means for temporarily storing the power generated by the generator is provided, and the power generated by the generator is supplied to the electric power via the power storage means. It is characterized in that it is supplied to a drive valve.

According to a fourth aspect of the present invention, in any one of the first and second aspects, there is provided a power supply in which electric power is stored in advance, and power is supplied from the power supply to the electric drive valve to close the electric drive valve. It is characterized in that it is made to valve.

According to a fifth aspect of the present invention, there is provided any one of the first to fourth aspects, further comprising a control unit for controlling the closing of the electrically driven valve after the valve is opened. It is characterized in that the water supply is automatically stopped.

According to a sixth aspect of the present invention, in the fifth aspect, a sensor for detecting a human body is provided, and the electric drive valve is closed when the human body deviates from the detection of the sensor. It is characterized by.

According to a seventh aspect of the present invention, in any one of the first to sixth aspects, the electric drive valve is a solenoid valve.

According to an eighth aspect of the present invention, in any one of the first to seventh aspects, the electric drive valve maintains the open state after opening and the closed state after closing the valve without power supply. It is characterized by being a latch type valve.

A ninth aspect of the present invention is characterized in that, in the eighth aspect, the latch-type electric drive valve has a latch magnet for holding the valve body in the valve open position by a magnetic force.

According to a tenth aspect, in any one of the first to ninth aspects, the water supply device has a main body having a water supply port formed therein, and the electric drive valve is assembled to the main body. It is characterized by the following.

[0017]

As described above, in the water supply apparatus of the present invention, the electric drive valve provided on the water channel is forcibly opened by human power without using a power supply in which electric power is stored in advance. The valve is driven, and in this water supply device, the water supply can be started by opening the electric drive valve without any trouble without a special power supply. In the present invention, “by human power” is a concept including not only hand power but also foot power and other human power.

In this case, a generator provided with a water wheel that rotates by a water flow is provided on the water channel, and the electric power generated by the generator is supplied to the electric drive valve to close it. (Claim 2). By doing so, it becomes possible to open and close the electric drive valve without power supply, and therefore, in this water supply device, as in a conventional water supply device using a commercial power supply as a power supply. It is not necessary to perform a large-scale electrical wiring work for installation, and the water supply device can be operated without any trouble even during a power failure. Alternatively, separately providing a battery such as a dry battery as a power supply can be omitted.

Even when a power source such as a dry battery is used, the power consumption of the dry battery or the like can be reduced, and the battery life can be effectively extended.

In the present invention, when power is generated by the generator, a power storage means for temporarily storing the generated power is provided, and the power for closing the electric drive valve is supplied from the power storage means. (Claim 3).

In the present invention, it is also possible to provide a power supply such as a dry battery in which electric power is stored in advance, and supply electric power from the power supply to the electric drive valve to close the valve. 4). As described above, when the electric drive valve is opened, a large amount of power is consumed temporarily. Therefore, even in a water supply device having a power supply, if the electric drive valve is forcedly opened by a human force when the electric drive valve is opened, power consumption for opening the electric drive valve is reduced. Thus, the life of a dry battery or the like can be extended.

Next, the electric drive valve is closed by the control of the control unit after the electric drive valve is opened, and the water supply is automatically stopped after the water supply is started. According to the water supply apparatus of the fifth aspect, the user does not need to perform anything after performing the water supply operation, and can automatically stop the water supply after performing the predetermined amount of water supply. In the water supply apparatus according to the fifth aspect, after the electric drive valve is opened, that is, water supply is continued for a certain period of time after the start of water supply, and the electric drive valve is closed by the control unit after the predetermined time has elapsed. The water supply may be stopped, but a sensor for detecting a human body may be provided according to claim 6, and the electric drive valve may be closed when the human body is not detected by the sensor.

In this case, after the user performs necessary operations such as hand washing and then leaves the water supply device, the water supply can be automatically stopped, thereby improving the usability of the water supply device. In the case of the water supply device according to claim 6, since the water is supplied by the power of the user by the user, that is, the water supply operation, unlike a conventional automatic water faucet provided with a sensor for sensing the human body, It is not necessary to always perform the sensing (sensing) of the human body by the sensor even during the absence.

As a result, it is possible to reduce power consumption consumed by sensor sensing when not in use. However, the sensor can be freely sensed even when there is no user.

In the case of a conventional automatic faucet used for hand washing, etc., the sensor is provided downwardly near the water supply port and is located at a position hidden from the outside. May not be able to use it because they do not understand it. However, in the water supply device according to claim 6, since an operation unit is provided so that it can be seen at a glance, and water can be started by operating the operation unit, anyone can easily use the water supply device. Is obtained.

In the present invention, the electric drive valve may be an electromagnetic valve (claim 7). In the water supply device of the present invention, the electric drive valve is a non-latch type,
That is, it is possible to use a configuration in which the valve is kept open while electric power is supplied after the valve is opened, and the valve is closed when the power supply is stopped. In particular, when using an electrically driven valve such as a non-latch type solenoid valve, a generator is provided on the water channel to generate electricity by a water flow, and the electric power is supplied to the electrically driven valve to open the valve. It is desirable to keep it.

On the other hand, according to claim 8, a latch-type valve which holds the open state after opening the valve and the closed state after closing the valve without power supply is used as the electrically driven valve. it can. By using such a latch-type valve, there is no need to supply power to the electrically driven valve to keep the valve open after the valve is opened, and to supply power only when the valve is closed. The valve can be closed. Therefore, the power consumption can be reduced by using the latch type electric drive valve. In addition, it is easy to close the electric drive valve at a necessary timing by using another power source without necessarily using the generator using the water flow.

In the case of using this latch type electrically driven valve, a latch magnet can be provided on the electrically driven valve so that the valve body which has reached the valve opening position is held by the magnetic force. (Claim 9). With this configuration, a latch-type electrically driven valve can be configured with a simple configuration.

Next, an electric drive valve such as a solenoid valve is assembled to the main body having a water supply port, and water supply (water discharge) from the water supply port to the outside can be achieved. In a water supply device such as a faucet, an electric drive valve such as an electromagnetic valve is separated by an operation force from an operation unit provided near a water supply port, as in a water supply device in which an electrically driven valve such as an electromagnetic valve is separately disposed at a position separated therefrom. There is no need to remotely operate the electric drive valve at the position, and the advantage that the structure of the water supply device can be simply and compactly obtained is obtained.

[0030]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 shows a water supply apparatus according to an embodiment of the present invention. This water supply apparatus 10 has a water passage 12 inside a main body 11 and an electromagnetic valve (electrically driven valve) is provided on the water passage 12. ) 16 and a generator 20 provided with a water wheel 18 rotated by a water flow. Here waterway 1
The tip of 2 is a water supply port 14, and water flowing through the water channel 12 is supplied to the outside (water discharge) from the water supply port 14.

In this example, the solenoid valve 16 is
The main valve is a pilot valve that operates the main valve as a pilot valve, and is a latch type that holds an open state after opening the valve and a closed state after closing the valve without power supply. It is a valve.

The main valve element 24 is a diaphragm-type valve element.
2 is shut off. That is, the upstream water channel 12a and the downstream water channel 1
2b is in a non-communication state. A back pressure chamber 28 is formed on the back side (upper side in the figure) of the main valve body 24. Usually, the main valve body 24 is in a state of being seated on the valve seat 26 by the pressure inside the back pressure chamber 28. .

The back pressure chamber 28 and the downstream water passage 12b communicate with each other through a center hole 30 formed in the center of the main valve body 24, and the center hole 30 is formed of a plunger made of a magnetic material. The valve is closed by a (valve) 32. As shown in FIG.
4 indicates that when the plunger 32 moves upward in the drawing, water in the back pressure chamber 28 flows out to the downstream water channel 12b, that is, when the pressure in the back pressure chamber 28 decreases, the supply of water to the upstream water channel 12a is reduced. The valve opens by water pressure.

On the other hand, when the plunger 32 moves downward in FIG. 1 and the center hole 30 is closed, the water in the upstream water passage 12a flows into the back pressure chamber 28 through the small hole formed in the main valve body 24. As a result, the pressure inside the back pressure chamber 28 increases, and the main valve body 24 finally closes due to the pressure.

Numeral 34 denotes a solenoid coil of the solenoid valve 16, and the plunger 32 is pushed downward in FIG. 1 by the electromagnetic repulsive force of the solenoid coil. The plunger 32 is urged downward by a spring 36 in the drawing, that is, in the valve closing direction, and when moved upward in the drawing to the valve opening position, the casing 38
The valve is held open against the urging force of the spring 36 by the magnetic force of the latch magnet 40 provided inside (see FIG. 2). After the plunger 32 moves to the valve closing position, the plunger 32 is held in the valve closed state by the urging force of the spring 36. Reference numeral 41 is a core made of a magnetic material.

The solenoid valve 16 of this embodiment has a manual operation member 42. A magnet 44 is held at the tip of the manual operation member 42, and they are urged leftward in FIG. . An input portion (push button) 48 to which an operation force is to be applied is integrally formed at an end of the manual operation member 42. The solenoid valve 16 of this example
The valve can be mechanically opened by a human force, specifically, when a human applies an operation force to the input unit 48.

That is, from the state shown in FIG. 3 (I), a force is applied to the input section 48 to move the manual operation member 42 to the spring 4
When the magnet 44 is pushed rightward in the figure against the urging force of 6, the magnet 44 at the retracted position advances as shown in (II) to reach a position close to the core 41, where the plunger 32 is moved. It is pulled up in the figure by magnetic attraction through the core 41. Then, the center hole 30 of the main valve body 24 is opened, and the back pressure chamber 28 is connected to the downstream water passage 12.
b, the pressure inside the back pressure chamber 28 decreases, and the main valve body 24 opens.

After that, when the operating force applied to the input unit 48 is removed, the manual operating member 42 returns to the initial position, that is, the retracted position by the urging force of the spring 46 as shown in (III). The plunger 32 once pulled up to the valve opening position is held at the valve opening position by the magnetic force of the latch magnet 40. That is, the water channel 12 is maintained in a water-flowing state, and the water supply from the water supply port 14 is continuously performed thereafter.

On the other hand, when power is supplied to the solenoid coil 34 in the state of FIG.
Is pushed downward in the figure by the electromagnetic repulsive force, whereby the center hole 30 of the main valve body 24 is closed. Thereafter, the water in the upstream water passage 12a flows into the back pressure chamber 28 through the small hole formed in the main valve body 24, whereby the pressure inside the back pressure chamber 28 gradually increases, and finally Valve body 24
Is seated on the valve seat 26. Here, the water channel 12 is shut off, and the water supply from the water supply port 14 stops.

In the case of the water supply device 10 of this example, when the input portion 48 of the manual operation member 42 is pushed rightward in FIG. 2 to drive the solenoid valve 16 to open, a water flow is generated in the water channel 12, and the water flow The rotation of 18 causes the generator 20 to generate power. After the solenoid valve 16 is opened, the generator 20
The valve closing operation is performed under the control of the control unit 22 by the supply of the power generated by the control unit 22.

The water supply apparatus 10 shown in FIG. 1 measures the integrated flow rate of water flowing through the water channel 12 and closes the solenoid valve 16 when the flow rate reaches a predetermined constant flow rate, thereby stopping the water supply. After starting water supply from the device, i.e. water supply port 14,
It can be configured as a fixed-quantity water stopping device that automatically stops water supply when the water supply amount becomes a constant water supply amount.

As means for measuring the integrated flow rate, a water turbine 18
A pulse is generated by the rotation of and the number of the pulses is counted to measure the integrated flow rate.
, A timer function can be provided to measure the accumulated flow rate by measuring the time from the start of water supply. Alternatively, the electric power generated by the water turbine 18 may be charged (stored) in the capacitor, and the amount of water until the charged voltage becomes a constant voltage may be measured as an integrated flow rate.

FIG. 4 shows a condenser 50 as the measuring means.
FIG. 3 conceptually shows an example in which the water supply device 10 is configured as a fixed water stop device. In FIG. 4, the generator 2
The electric power generated at 0 is charged in the capacitor 50, and when the charging voltage of the capacitor 50 reaches the set value as shown in FIG. 5A, the valve driving unit 52 is driven by a signal from the control unit 22. Then, electric power is supplied to the solenoid valve 16. Here, the solenoid valve 16 is closed and the water passage 12 is closed.
Water flow stops. That is, the water supply from the water supply port 14 stops.

Power is supplied to the solenoid valve 16 by the generator 2.
The power generated at 0 may be supplied directly to the solenoid valve 16, or the power stored in the capacitor 50 may be released and supplied to the solenoid valve 16.

The charging voltage of the condenser 50 increases in proportion to the total rotation amount of the water turbine 18 in the generator 20, that is, the integrated flow rate of the water flowing through the water channel 12. When the charging voltage reaches the set value, the solenoid valve 16 is closed by the valve drive unit 52 as shown in FIG.

FIG. 6 is a time chart showing an example of the operation of the water supply device 10 as the fixed water stop device shown in FIG. As shown in the figure, in this example, when the input section 48 is pushed, a water flow is generated in the water channel 12, the generator 20 generates electric power, and the control section 22 is activated here. At the same time, the capacitor 50 is charged, and when the charged voltage reaches a set value, a valve closing signal is issued from the control unit 22 to close the solenoid valve 16, where the water supply from the water supply port 14 is performed. Stops.

In the water supply device 10 of the present embodiment as described above, the solenoid valve 16 is forcibly opened and driven by human power. The water supply can be started by opening the valve 16.

In the water supply device 10 of this embodiment, the electric power generated by the generator 20 provided on the water channel 12 is
The solenoid valve 16 can be opened and closed without power supply, and can be installed as in a conventional water supply system using a commercial power supply as a power supply. It is not necessary to perform large-scale electrical wiring work, and the water supply device can be operated without any trouble even during a power outage.
Alternatively, separately providing a battery such as a dry battery as a power supply can be omitted.

Further, in this embodiment, after the solenoid valve 16 is opened, it is closed under the control of the control unit 22 to automatically stop the water supply. There is no need to perform anything after the operation, and the water supply device 1
Water supply can be automatically stopped after water is supplied from 0 to a predetermined amount.

Further, in the water supply device 10 of this embodiment, since the latch type solenoid valve 16 is used, after the valve is opened, the solenoid valve 1
It is not necessary to supply power to the valve 6 to keep the valve open, and it is sufficient to supply power only when the valve is closed. Therefore, power consumption can be reduced.

Further, in this embodiment, the generator 20 and the control unit 22 are assembled to the main body 11 together with the solenoid valve 16, so that they are provided separately at a position separated from the main body 11. Further, the structure of the water supply device 10 can be further simplified and made compact.

FIGS. 7 and 8 show another embodiment of the present invention. In the water supply device 10 of this example, a window 54 is provided in the main body 11, specifically, in a position near the water supply port 14,
A sensor 56 for detecting a human body, more specifically, for detecting an outstretched hand is provided therein.

In the above embodiment, the generator 2
However, in this example, the generator 20 is not provided, but a dry battery 58 is provided as a power supply, and the electromagnetic valve 16 is controlled by the control unit 22 by supplying power from the dry battery 58. The valve is closed. The solenoid valve 16 is the same as the above embodiment in that the solenoid valve 16 is driven to open by operation of the manual operation member 42.

FIG. 9 is a conceptual diagram when the water supply device 10 of FIG. 7 is configured as an automatic faucet (strictly, a semi-automatic faucet). FIG. 10 is a time chart showing the operation of the water supply device 10. It is a representation. As shown in FIG. 10, by pushing the input unit 48 of the manual operation member 42, sensing by the sensor 56 starts and the control unit 22 is started, and the solenoid valve 16 is opened by the valve driving unit 52. Operates and starts water supply. After that, when the hands such as hand washing are finished and the hand is retracted from the sensor 56,
That is, when the hand deviates from the sensing of the sensor 56, power is supplied from the dry battery 58 to the solenoid valve 16 for closing the valve under the control of the control unit 22, and the solenoid valve 16 operates to close. As a result, the water channel 12 is shut off and the water supply port 14 is closed.
Water supply from is stopped.

In the examples shown in FIGS. 9 and 10, when the input section 48 is pushed in by human power, the solenoid valve 16 is driven to open.
After that, it is described that the sensing by the sensor 56 is performed, and the solenoid valve 16 is operated to close when the hand is removed from the sensing area. Here, instead of pushing the input unit 48, the sensor 56 always performs sensing even when it is not in use.
When the hand is put out under 6, the electromagnetic valve 16 can be opened using the dry battery 58 as a power source by the sensing of the hand by the sensor 56.

That is, it is possible to open the electromagnetic valve 16 by either the hand sensing by the sensor 56 or the pushing operation of the input unit 48. In this case, a function is added to the conventional normal automatic faucet, in which a function of starting water supply even by an operation by human power is added.

The water supply apparatus 10 of this embodiment supplies power from the dry battery 58 when closing the solenoid valve 16, but the valve is opened by pushing the input unit 48. The battery life of the dry battery 58 can be effectively extended.

Further, in the water supply apparatus 10 of this embodiment, the user can stop the water supply automatically by performing necessary operations such as hand washing and then separating from the water supply apparatus 10, thereby making the water supply apparatus 10 easier to use. Is good.

Unlike the conventional automatic faucet of this type, the sensor 56 does not need to perform sensing while there is no user, so that the problem that a large amount of power is consumed by sensing when not in use can be solved. Further, according to the water supply device 10 of the present embodiment, the manual operation member 42 that can be seen at a glance
Is provided, the advantage that anyone can easily use the water supply device 10 is obtained.

In this embodiment, the dry cell 58 and the control unit 22 are assembled together with the solenoid valve 16 on the main body 11 having the water supply port 14 for supplying water to the outside (water discharge). The structure of the entire water supply device 10 can be simplified and made compact as compared with a case where the water supply device 10 is provided at another position separated from the body 11.

FIGS. 11 and 12 show still another example of the water supply apparatus according to the present invention, and FIG. 13 conceptually shows the water supply apparatus. Water supply device 10 of this example
In the embodiment shown in FIG. 7, a generator 20 is provided on the water channel 12 in place of the dry battery 58 in the embodiment of FIG. 7, and the electromagnetic valve 16 is closed by power supply from the generator 20.

That is, the water supply device 10 of this example is an example in which the function as an automatic faucet is performed substantially without power supply. More specifically, in this example, at the start of water supply, the electromagnetic valve 16 is opened by operating the manual operation member 42 with human power, but thereafter, the electric power is generated by the generator 20 by the water flow in the water channel 12. The sensing by the sensor 56 is performed by the power, and when the hand is removed from the sensing area by the sensor 56, the power from the generator 20 is automatically supplied to the electromagnetic valve 16 under the control of the control unit 22. The valve is operated to close the valve to stop the water supply.

In the above embodiment, a latch-type valve is used as the electromagnetic valve 16. FIG. 14A shows the principle of the latch-type solenoid valve 16 together with a time chart of operation. In the latch-type solenoid valve 16 of FIG. 14A, power is normally supplied to the solenoid coil 34 in the direction (upward in the figure) in which the plunger 32 is pulled up at the timing indicated by the middle dotted line (c). By that
As shown in (a), the plunger 32 is pulled up, the solenoid valve 16 is opened, and then (c) the solenoid coil 34 is pushed in a direction (downward in the figure) to push the plunger 32 at the timing indicated by the solid line. When the power is supplied, the plunger 32 is pushed out and the solenoid valve 16 is closed as shown in FIG.

On the other hand, in the present invention, in addition to the latch type solenoid valve 16, a non-latch type solenoid valve (electrically driven valve) is used.
It is also possible to use. FIG. 14B shows the principle of the non-latch type solenoid valve (electrically driven valve) 60 together with a time chart of operation. In the non-latch type solenoid valve 60 shown in FIG. 14 (B), the solenoid coil 3 is normally operated at the timing indicated by the middle dotted line (c).
4, the plunger 32 is raised and the solenoid valve 60 is opened as shown in (A), and thereafter (C) the power is continuously supplied during the period indicated by the solid line. That is, after maintaining the valve open state while energizing,
When the power supply is stopped, the plunger 32 is pushed out by the urging force of the spring 36 to close the solenoid valve 60 as shown in FIG.

In the present invention, the solenoid valve 60 is driven to be opened by human power, and after the power is supplied, the valve is kept open. It is also possible to use a type that operates to close the valve.

In this case, however, it is possible to provide a power source such as a dry battery and supply power to the solenoid valve 60 from the power source. In the present invention, in particular, in the present invention, the embodiment shown in FIG. As described above, the generator 20 is provided on the water channel 12 so that the generator 20 generates electric power at the same time when the water flow is generated, and continues to supply electric power to the electromagnetic valve 60 from there.
Can be maintained in an open state, and the power supply to the electromagnetic valve 60 is stopped when the power generation of the generator 20 is stopped, the electromagnetic valve 60 is closed, and the water supply from the water supply port 14 can be stopped. is there. In this case, it is possible to configure the water supply device 10 that automatically stops water supply without power supply while using the non-latch type electromagnetic valve 60.

Although the embodiments of the present invention have been described in detail, this is merely an example, and the present invention can be configured in variously modified forms without departing from the gist of the present invention.

[Brief description of the drawings]

FIG. 1 is a diagram showing a water supply device according to one embodiment of the present invention.

FIG. 2 is a view showing an operation state of the water supply device of FIG. 1;

FIG. 3 is a diagram illustrating the operation of the solenoid valve of the same embodiment.

FIG. 4 is a conceptual diagram of a constant-quantity water stopping device configured by applying the water supply device of FIG. 1;

FIG. 5 is an explanatory view of the principle of quantitative water stopping in the quantitative water stopping device of FIG. 4;

FIG. 6 is a time chart showing the operation of the quantitative water stopping device of FIG. 4;

FIG. 7 is a view showing a water supply device according to another embodiment of the present invention.

FIG. 8 is a view showing an operation state of the water supply device of FIG. 7;

9 is a conceptual diagram of an automatic faucet (semi-automatic faucet) configured by applying the water supply device of FIG. 7;

FIG. 10 is a time chart showing the operation of the automatic faucet (semi-automatic faucet) of FIG.

FIG. 11 is a view showing a water supply device according to another embodiment of the present invention.

FIG. 12 is a view showing an operation state of the water supply device of FIG. 11;

FIG. 13 is a conceptual diagram of an automatic faucet (semi-automatic faucet) configured by applying the water supply device of FIG. 11;

FIG. 14 is a diagram conceptually showing a latch type solenoid valve used in FIGS. 1 to 13 together with a non-latch type solenoid valve applicable to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Water supply apparatus 11 Main body 12 Water passage 14 Water supply port 16 Solenoid valve (electric drive valve) 18 Water turbine 20 Generator 22 Control part 32 Plunger 40 Latch magnet 50 Capacitor (electric storage means) 56 Sensor 58 Dry battery (power supply) 60 Electromagnetic valve (Electricity) Drive valve)

Continued on the front page (72) Inventor Yasuhiro Shirai 5-1-1 Koie Honcho, Tokoname-shi, Aichi Prefecture Inax Corporation (72) Inventor Tomoyuki Mizuno 5-1-1 Koie Honcho, Tokoname-shi, Aichi F Term Inax Corporation (Reference) 2D060 CA04 CA07 CA20 3H055 AA05 CC03 CC13 DD02 DD22 EE01 EE04 EE05 3H056 AA03 BB32 BB50 CA08 CB02 CD06 DD04 GG05 3H106 DA07 DA13 DA27 DA35 DB02 DB12 DB23 DB32 DC02 DD03 EE22 EE48 FB29 GAKK GA23

Claims (10)

[Claims] An electric drive valve electrically driven on a water channel is provided, and water supply and water supply stop are performed by opening and closing the electric drive valve. A water supply apparatus characterized in that the water supply is started by forcibly opening the valve by human power without depending on the stored power supply. 2. The electric drive valve according to claim 1, further comprising: a generator provided with a water wheel rotating by a water flow on the water channel, and supplying electric power generated by the generator to the electric drive valve. A water supply device characterized by closing a valve. 3. An electric power storage device according to claim 2, further comprising a power storage means for temporarily storing power generated by said generator, and supplying the power generated by said generator to said electric drive valve via said power storage means. A water supply device, characterized in that: 4. A power supply according to claim 1, further comprising a power supply storing electric power in advance, and supplying power from said power supply to said electric drive valve to close said electric drive valve. A water supply device, characterized in that: 5. A control unit according to claim 1, further comprising a control unit for controlling the closing of the electric drive valve after the electric drive valve is opened, and automatically stopping water supply after water supply by control of the control unit. A water supply device characterized in that the water supply is performed in 6. The water supply according to claim 5, further comprising a sensor for detecting a human body, wherein the electric drive valve is closed when the human body deviates from the detection of the sensor. apparatus. 7. The water supply device according to claim 1, wherein the electric drive valve is a solenoid valve. 8. A latch-type valve according to claim 1, wherein said electrically driven valve holds an open state after opening and a closed state after closing without power supply. A water supply device, characterized in that: 9. The water supply device according to claim 8, wherein the latch-type electrically driven valve has a latch magnet that holds the valve body at an open position by magnetic force. 10. The water supply device according to claim 1, wherein the water supply device has a main body having a water supply port formed therein, and the electric drive valve is assembled to the main body. Water supply device.