JP2003027546A - Fixed volume water supply device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a fixed volume water supply device installable only by connecting to a single pipe, and versatilely usable for various plumbing. SOLUTION: This fixed volume water supply device 10 is provided with a casing 12, a waterway 20, a water supply port 16, a connecting port 14, a solenoid valve 22, a controller 48, a generator 24 also serving as a flow rate detector, and a setting operation part 50 for performing setting operation on the total flow rate of supply water, and is constituted of a single unit of an independent shape as a whole by integrally installing these connecting port 14, solenoid valve 22, controller 48, generator 24, and setting operation part 50 in the casing 12.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fixed amount water supply device which stops water supply after supplying water by a set amount after starting water supply.

[0002]

2. Description of the Related Art Conventionally, there has been used a constant quantity water supply device which automatically stops water supply when a constant amount of water is supplied in various water supply facilities. For example, in a faucet or the like of a bathroom in a bathroom, water supply (water discharge) is started by operating a push button, and water supply is automatically stopped when water for one bath tub has been supplied. Alternatively, when water is supplied to the bathtub, the water supply is automatically stopped when a certain amount of water is accumulated in the bathtub, that is, when a certain amount of water is supplied to the bathtub. Furthermore, in the flush valve (toilet bowl cleaning device) that supplies flushing water to the toilet bowl to wash the toilet bowl, when water supply is started by button operation,
After supplying a certain amount of water, the water supply is automatically stopped after that.

In various other water supply facilities, there is a demand for a device that automatically stops water supply when water is supplied by a preset amount.

However, this type of quantitative water supply device used conventionally has a problem that it cannot be used universally for each facility. That is, in the conventional constant quantity water supply device, it is necessary to incorporate a dedicated constant quantity water supply mechanism into each faucet and various water supply facilities, and there are a wide variety of parts for the device configuration, and the assembly of the device is Therefore, there has been a problem that a great deal of time and labor is required, and that the cost is high due to a wide variety of necessary parts and types of the water supply mechanism.

In addition, this type of constant quantity water supply device which has been conventionally used mechanically determines the supply water flow rate (integrated flow rate), and mechanically closes the valve when the supply water flow rate reaches a certain amount. Therefore, in addition to the problem that the water supply flow rate, which should be constant, is insufficient in terms of accuracy, the structure is complicated and bulky, and the structure is complicated and easily broken. There was also the problem that the cost was high.

[0006]

The quantitative water supply device of the present invention has been devised to solve such a problem. Thus, the first aspect of the present invention is a quantitative water supply device that stops water supply when the cumulative flow rate of the water channel reaches a set amount,
(A) a casing, (b) an internal water channel, (c) a water outlet at the end of the internal water channel, (d) a water channel connecting portion for connecting the internal water channel to an external upstream water channel, ) An electric drive valve that opens and closes the internal water passage, (f) a controller that controls the operation of the electric drive valve, (g) a power supply unit that supplies electric power to the electric drive valve, and (h) the internal water passage. A flow rate detector that detects the cumulative flow rate of (1), and (ri) a setting operation unit that sets and operates the cumulative flow rate of water supply from the start of water supply to the stop of water supply,
And having the waterway connection, an electrically driven valve, a controller,
The power supply unit, the flow rate detector, and the setting operation unit are assembled into the casing to be configured as a single unit as a whole.

According to a second aspect of the present invention, in the first aspect, the electrically driven 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, a display section for displaying the set amount of the integrated flow rate set by the setting operation section is provided.

A fourth aspect is characterized in that, in any one of the first to third aspects, the set amount is variable.

A fifth aspect of the present invention is characterized in that, in any one of the first to fourth aspects, a hydraulic power generator is provided, which includes, as the electric power supply section, a water turbine that rotates by a water flow in the internal water channel.

According to a sixth aspect of the present invention, in the fifth aspect, the hydroelectric generator also serves as the flow rate detector.

According to a seventh aspect of the present invention, in any one of the first to sixth aspects, the electrically driven valve is maintained in an open state after the valve is opened and a closed state after the valve is closed without power supply. It is a latch-type valve that operates.

According to an eighth aspect of the present invention, in the seventh aspect, the latch type electric drive valve has a latch magnet for holding the plunger valve body made of a magnetic material in a valve open state by magnetic force. Characterize.

According to a ninth aspect of the present invention, in any one of the first to eighth aspects, the electrically driven valve is operated to be opened by a person's operation without relying on a power source in which electric power is stored in advance. Is characterized by.

[0015]

As described above, in the constant quantity water supply device of the present invention, the water channel connection part, the electric drive valve, the controller, the power supply part, the flow rate detector and the setting operation part are assembled in the casing, and a single unit is provided as a whole. The metered flow rate device of the present invention is configured as a unit, and the metered water supply device can be installed therein simply by connecting the water channel connection portion to the upstream upstream water channel such as a pipe. That is, a constant quantity water supply function can be added thereto by simply connecting the constant quantity water supply device of the present invention at a water channel connection portion to a water supply facility that has not had a constant quantity water supply function until then.

The fixed amount water supply device of the present invention is attached to the end portion of the upstream side pipe body, and the water outlet thereof is configured as a water discharge port. By installing a fixed quantity water supply device, a conventional existing faucet can be made into a faucet with a fixed quantity water supply function.

Alternatively, if the water outlet is configured as a connection portion with an external downstream side water channel, the fixed amount water supply device can be installed there only by connecting the constant amount water supply device of the present invention in the middle of the pipe. it can.

Further, since the constant quantity water supply device of the present invention need only be connected to a pipe or the like, it can be applied to various applications, various functions, or a general-purpose constant quantity water supply device in various water supply facilities. For example, by connecting the fixed quantity water supply device of the present invention to the tip of the kitchen faucet, a fixed quantity water supply function can be added to the kitchen water faucet, and the constant quantity water supply device of the present invention can be connected in the middle of piping in the toilet bowl cleaning device. By doing so, it is possible to add a fixed amount water supply function of automatically stopping after supplying a predetermined amount of wash water.

The metered water supply device of the present invention also comprises an electrically driven valve for opening and closing the water channel, a controller for controlling the operation of the valve, and a power supply unit for supplying driving power to the electrically driven valve. Since a fixed amount of water is supplied to the device, the device can have a simple structure and can be made compact, and the device can be highly reliable with few failures. Here, the electrically driven valve may be an electromagnetic valve (claim 2).

The present invention may further include a display unit for displaying the set amount of the integrated flow rate set by the setting operation unit (claim 3). In this case, by looking at the display portion, it is possible to immediately recognize how much the current set amount is.

According to a fourth aspect of the present invention, the set amount is variable. By doing so, the set amount can be freely set to a desired amount and the set amount is insufficient. If it is too large or too large, it can be immediately set and changed to an appropriate amount. In this case, the set amount can be changed even during water supply.

In the present invention, a power source for preliminarily storing electric power, such as a dry battery, can be provided as a power supply unit. However, according to the fifth aspect, it is desirable to provide, as the power supply unit, a hydroelectric generator including a water turbine that rotates by the water flow in the internal water channel. By doing so, at least when the electrically driven valve is closed, the electrically driven valve can be closed by using the electric power generated by the hydraulic power generator.

Alternatively, the electric power generated by the hydroelectric generator can be supplied to the controller to operate it. In this case, the hydroelectric generator can also be used as a flow rate detector that detects the integrated flow rate of the internal water channel (claim 6).

Since the total number of revolutions (total number of revolutions) of the water turbine in the hydroelectric generator corresponds exactly to the total flow rate (total amount of flow) in the water channel, the generator is used as a flow rate detector for detecting the total amount of flow. be able to. By doing so, it is not necessary to provide a flow rate detector separately from the generator, the device configuration can be further simplified, and the cost can be reduced. In this case, the integrated flow rate can be detected based on the power generation frequency of the generator.

In the present invention, the electrically driven valve can be a latch type valve that holds the opened state after the valve is opened and the closed state after the valve is closed without power supply. (Claim 7). When the electric drive valve is such a latch type valve, it is not necessary to supply power to the electric drive valve to keep the open state after the valve is opened, and the electric power is supplied only when the valve is closed. Since it can be supplied and closed, the power consumption can be reduced.

When using this latch-type electrically driven valve, a latch magnet may be provided on the electrically driven valve so that the plunger valve element that has reached the valve opening position is held by the magnetic force. Yes (claim 8).
With this configuration, the latch type electric drive valve can be configured with a simple configuration.

Further, according to the present invention, the electrically driven valve can be opened by a human operation without relying on a power source in which electric power is stored in advance (claim 9).
By doing so, especially when a hydroelectric generator is provided as the power supply unit, it is possible to make the operation from the opening of the valve to the closing of the valve, that is, from the start of the water supply to the stop of the water supply without a power source. Becomes

If the power supply can be eliminated, for example, large-scale electric wiring work for connecting to a commercial power supply is not required, and the mounting of the constant quantity water supply device can be further simplified. Even when a battery is used as the power source, the power consumption of the battery can be suppressed as low as possible.

[0029]

Embodiments of the present invention will now be described in detail with reference to the drawings. In FIG. 1 and FIG. 2, reference numeral 10 denotes a constant-volume water supply device of this example, which has a casing 12 having a substantially rectangular shape,
Various mechanical parts are built in the inside. The fixed amount water supply device 10 is provided with a cylindrical connection port 14 and a water supply port 16 which project from the casing 12.

A male screw is formed on the outer peripheral surface of the connection port 14, and the connection port 14 is screw-connected to the female screw of the pipe 18 at this male screw, whereby the fixed quantity water supply device 10 is connected to the pipe 1.
It is adapted to be attached to and held at the tip of the No. 8.

As shown in FIG. 3, the constant quantity water supply device 10 of the present embodiment communicates with the tip opening of the connection port 14 and the tip opening of the water supply port 16, and the water flowing from the connection port 14 is supplied to the water supply port 16.
It has a water channel 20 leading to the inside.

A solenoid valve (electrically driven valve) is provided on the water passage 20.
22 and a generator 24 are arranged. The generator 24 has a water wheel 26 arranged on the water channel 20.
Power is generated by rotating the water wheel 26 with the force of the water flow.

Reference numeral 28 is a main valve body of the solenoid valve 22.
The main valve body 28 is a diaphragm type valve body, and when the main valve body 28 is seated on the valve seat 30, the water passage 20 is shut off. That is, the upstream water channel 20a and the downstream water channel 20b are in a non-communication state. A back pressure chamber 32 is formed on the back side of the main valve body 28 (on the right side in FIG. 3 (A)).
8 is seated on the valve seat 30 by the pressure inside the back pressure chamber 32.

The back pressure chamber 32 and the downstream water passage 20b are
The main valve body 28 is communicated through a central hole 34 formed in the central portion of the main valve body 28, and the central hole 34 is closed by a plunger valve body 36 made of a magnetic material.

As shown in FIG. 7, when the plunger valve body 36 moves to the right in FIG. 3 (A) (upward in FIG. 7), the water in the back pressure chamber 32 becomes the downstream side of the main valve body 28. Waterway 2
By flowing out to 0b, that is, the pressure inside the back pressure chamber 32 decreases, the valve opening operation is performed by the water supply pressure of the upstream water passage 20a.

On the other hand, the plunger valve body 36 is shown in FIG.
When the center hole 34 is closed by moving leftward (downward in FIG. 7), the water in the upstream water channel 20a flows into the back pressure chamber 32 through the small hole 37 formed in the main valve body 28. ,
As a result, the pressure inside the back pressure chamber 32 increases, and finally the main valve body 28 closes due to the pressure.

Reference numeral 38 denotes a solenoid coil of the solenoid valve 22, and the electromagnetic repulsive force of the solenoid coil 38 pushes the plunger valve body 36 leftward in FIG. 3A (downward in FIG. 7). The plunger valve element 36 is urged by the spring 40 in the leftward direction in FIG. 3A (downward in FIG. 7), that is, in the valve closing direction, and also in the rightward direction in FIG. (Upward)
Valve casing 46 in the solenoid valve 22 when moved to
The magnetic force of the plate-shaped latch magnet 42 provided inside resists the biasing force of the spring 40 and maintains the valve open state. Further, the plunger valve body 36 is maintained in its closed state by the urging force of the spring 40 after moving to the valve closed position. Reference numeral 44 is a fixed core made of a magnetic material in the solenoid valve 22.

As shown in FIGS. 3 and 6, a controller (control circuit) 48 is built in the casing 12 in the constant quantity water supply device 10 of the present embodiment, and the solenoid valve 22 has the controller 48. Under the control of 1), the valve closing operation is performed by using the electric power generated by the generator 24 as the driving power.

In FIGS. 3, 4 and 5, reference numeral 50 is a valve operating portion for opening the solenoid valve 22 (starting water supply) and an operation for setting an integrated flow rate of water supply from the water supply port 16. It is a dial handle type setting operation section that also serves as a section, and has a bottomed cylindrical shape having a cylindrical section 52 and a bottom section 54. A ring-shaped magnet 56 is attached and fixed to the bottom portion 54 by a fixing screw 58 inside the setting operation portion 50 and in the center portion in the direction perpendicular to the axis.
As shown in FIG. 4, an uneven slip prevention portion 70 is provided on the outer peripheral portion of the setting operation portion 50.

In the case of the constant quantity water supply device 10 of this example, the solenoid valve 22 is opened by pushing the setting operation part 50. Further, by rotating this in the left-right direction, the integrated flow rate of the water supply is set to be high or low, or the setting is changed.

In FIGS. 3, 4 and 5, reference numeral 62 is a magnet guide for moving and guiding the magnet 56 when the setting operation portion 50 is pushed in, and has a substantially cylindrical shape. The magnet guide 62 has a large diameter portion 6
4 and a small-diameter guide portion 66 and a flange portion 68, and the flange portion 68 is used for the main body portion 12 of the casing 12.
With the seating on the side surface of A, the large diameter portion 64
The magnet 56 is externally fitted to the valve casing 46, and the magnet 56 is fitted inside the guide portion 66 having a small diameter so as to be movable in the axial direction. The guide portion 66 is slidably fitted on the inner surface of the guide portion 66, and guides the magnet 56 in the axial direction. In this example, the valve casing 46 is the casing 12 of the constant quantity water supply device 10.
Is part of.

A return spring for urging the setting operation part 50 in the return direction is provided between the stepped part from the large diameter part 64 to the small diameter guide part 66 of the magnet guide 62 and the setting operation part 50. 60 is installed,
The setting operation unit 50 is pushed to the left in FIG. 3A against the biasing force of the return spring 60. When the pushing operation force is removed, the setting operation section 50 is returned to the original position by the urging force of the return spring 60.

In FIG. 4, reference numeral 72 denotes an encoder that generates a pulse in accordance with the rotation of the rotary shaft 74. In this example, the pulse generated by the encoder 72 is the controller 4
8 is supplied to the controller 48, and then the controller 48 determines or also changes the integrated flow rate of the water supply.

In FIG. 4, 76 is the encoder 72.
A drive member for rotationally driving the rotating shaft 74 of
The cylindrical portion 78 and a large-diameter gear 80 formed at the axial end thereof
And have integrally. The large-diameter gear 80 is a small-diameter gear 8 fixed to the rotary shaft 74 of the encoder 72.
The rotary shaft 74 of the encoder 72 is rotated by the rotation of the driving member 76 to generate the pulse as described above. The driving member 76 is the magnet guide 6
It is fitted to the outer peripheral surface of the large diameter portion 64 of No. 2 and rotates along the outer peripheral surface of the large diameter portion 64.

Here, the main body of the encoder 72 is housed in a housing recess 83 formed in the main body 12A of the casing 12, and the end of the rotary shaft 74 and the gear 82 fixed to the main body are provided in the main body. It projects to the outside of the portion 12A.

The setting operation section 50 is fitted onto the cylindrical portion 78 of the drive member 76 so as to be relatively movable in the axial direction. Flat engagement surfaces 88 and 90 are provided on the outer peripheral surface of the cylindrical portion 78 of the drive member 76 and the inner peripheral surface of the cylindrical portion 52 of the setting operation portion 50 at positions separated by 180 ° in the rotational direction. However, they are engaged with each other, whereby the drive member 76 is integrally rotated by the rotation operation of the setting operation section 50. That is, by rotating the setting operation unit 50, the rotary shaft 74 of the encoder 72 is moved through the drive member 76.
Rotates to generate a predetermined pulse.

In FIG. 4, reference numeral 84 denotes a fixing plate for accommodating and fixing the large diameter gear 80 of the driving member 76 and the small diameter gear 82 of the encoder 72 therein.
The drive member 76 and the encoder 72 are pressed against the side surface of the main body portion 12A of the casing 12 by the fixing plate 84, and are prevented from coming off in the axial direction. The fixing plate 84 is fixed to the side surface of the main body 12A with a fastener such as a screw.

The fixed plate 84 is provided with a cylindrical portion 86, and the tip end of the cylindrical portion 78 of the driving member 76 partially projects from the cylindrical portion 86 to the outside. In this example, the fixed plate 84 is also the fixed amount water supply device 10.
And forms a part of the casing 12.

A male screw is formed on the outer peripheral surface of the cylindrical portion 86 of the fixed plate 84, and a female screw on the inner peripheral surface of the cylindrical retaining ring 92 is screwed thereto. An inward annular locking portion 94 is provided at the axial end of the retaining ring 92. On the other hand, a corresponding annular locked portion 96 is provided on the outer peripheral surface of the dial handle type setting operation portion 50, and the setting operation is performed by the locking action of the locking portion 94 and the locked portion 96. The part 50 is prevented from coming off in the axial direction.

On the outer peripheral surface of the retaining ring 92, an operation for indicating the operation direction when setting or changing the integrated flow rate of the water supply by rotating the setting operation section 50 and when starting the water supply again. A display unit 98 is provided.

As shown in FIGS. 1 and 2, on the front surface of the casing 12, there is provided a display unit 100 for displaying the integrated flow rate (set amount) set by the operation of the setting operation unit 50. Here, the display unit 100 is a 7-segment L
The ED emits light to electrically display the set amount numerically. However, it is of course possible to perform optical display using liquid crystal or the like.

Here, the display unit 100 starts counting down at the same time as the start of water supply and displays the remaining amount of water supply. Therefore, the display on the display unit 100 is 0.
Water supply will be stopped when it becomes.

On the front surface of the casing 12, a stop switch 102 is provided as a stop operation portion for stopping the water supply during the water supply. In this example, when the stop switch 102 is turned on, the electromagnetic valve 22 immediately closes to stop water supply regardless of the remaining amount of water supply.

In this example, the generator 24 also serves as a flow rate detector for detecting the integrated flow rate of the water supply. This generator 2
The total number of rotations of the water turbine 26 of No. 4 corresponds exactly to the total flow rate of water flowing through the water channel 20, and the generation frequency of the generator 24 in the controller 48 or the rotation of the water turbine 26 supplied from the generator 24. The integrated flow rate of the water channel 20 is detected by detecting the total number of pulses associated with. In response to the result, the display unit 100 counts down the display by the signal from the controller 48.

Next, the operation of the constant quantity water supply device 10 of this embodiment will be described below. In the case of the constant quantity water supply device 10 of the present example, when the dial handle type setting operation part 50 is pushed leftward in FIG. 3 (A) and downward in FIG. 7, the magnet 56 attached and fixed to the bottom part 54 is also moved in the same direction. Move forward.

When reaching the forward end, the attraction force (magnetic force) of the magnet 56 acts on the plunger valve body 36 of the solenoid valve 22 via the fixed core 44, and the plunger valve body 36 is moved to the position shown in FIG. ) It moves rightward in the middle and upward in FIG. 7, where the plunger valve element 36 operates to open the valve from the closed state shown in FIGS. 3 (A) and 7 (I). Figure 7 (I
I) shows the open state of the plunger valve body 36.

Thus, the plunger valve body 3 which has reached the valve opening position
6 is held at its valve opening position by the attraction force (magnetic force) of the latch magnet 42 built in the solenoid valve 22. Therefore, even if the operating force is removed by releasing the hand from the pushed setting operation unit 50, that is, even if the setting operation unit 50 returns to the original position by the urging force of the return spring 60, the plunger valve body 36 continues to open. Held in valve position.

When the plunger valve element 36 reaches the valve opening position, the central hole 34 in the main valve element 28 is opened, and the water in the back pressure chamber 32 is transferred to the central hole 3 of the main valve element 28.
4 to the downstream water channel 20b. At this point, the pressure inside the back pressure chamber 32 decreases, and therefore the main valve body 28
Is pushed up rightward in FIG. 3 (A) and upward in FIG. 7 by the water supply pressure in the upstream water passage 20a, and the main valve body 28 opens. FIG. 7 (III) shows the state at this time.

Thus, the main valve body 28 is opened to establish a state in which the upstream side water passage 20a and the downstream side water passage 20b communicate with each other, and here, the water from the pipe 18 is fed from the water supply port 16 to the water inlet 16 shown in FIG. Water supply is started downward (water discharge is started).

In the constant quantity water supply device 10 of the present embodiment, when the water supply is started as described above, the generator 2 provided on the water channel 20.
4 generates electricity by the water flow of the water channel 20. Then, the electric power generated there is supplied to the controller 48 and the display unit 100.

Then, when the setting operation unit 50 is rotated, a number is optically displayed on the display unit 100 according to the operation amount (rotation amount). That is, the set amount is optically displayed. Therefore, the rotational position of the setting operation unit 50 is adjusted so that the display by the display unit 100 is the total flow rate of the supplied water (the integrated flow rate),
Adjust so that the set amount is the total flow rate of the required water supply.

Incidentally, as shown in FIG. 6, the setting operation section 5
When 0 is rotationally operated, its rotational motion is transmitted to the rotary shaft 74 of the encoder 72 via the drive member 76 as described above. Then, according to the rotation of the rotary shaft 74, a pulse is supplied from the main body of the encoder 72 to the controller 48. In response to this, the controller 48 sends a signal to the display unit 100 to optically display the set amount.

After setting the integrated flow rate as described above,
As the water supply continues, the display unit 100 counts down, and when the number finally reaches 0, the controller 48 supplies a valve closing signal to the solenoid valve 22, and the solenoid valve 22 causes the generator 24 to operate. The valve is closed by the electric power generated in.

In this example, when the stop switch 102 is turned on after the start of water supply, the controller 48 immediately switches the solenoid valve 22 to the solenoid valve 22 at that time, even though the water supply is in progress, that is, there is a water supply remaining amount. A valve closing signal is sent to the solenoid valve 22, and the solenoid valve 22 closes the valve under the electric power generated by the generator 24 to stop the water supply.

As described above, according to this example, the connection port 1 is simply
4 is connected to the outside upstream waterway such as the pipe 18,
A fixed amount water supply device 10 can be installed. That is, a constant quantity water supply function can be added to a water supply facility that does not have a constant quantity water supply function until then by simply connecting the constant quantity water supply device 10 of this example at the connection port 14.

The quantitative water supply device 10 of this example can be applied as a general-purpose quantitative water supply device 10 for various purposes, various functions, or various water supply facilities.

Further, the constant quantity water supply device 10 of this embodiment is provided with a water channel 20.
Since the solenoid valve 22 for opening and closing the valve, the controller 48 for controlling the operation of the solenoid valve 22, and the generator 24 for supplying electric power for driving to the solenoid valve 22 are provided for electrically quantitative water supply, Can be configured compactly with a simple structure, and can be highly reliable with few failures.

Further, in this example, since the set amount of the integrated flow rate set by the setting operation unit 50 is displayed on the display unit 100, it is possible to immediately recognize how much the present set amount is. Also, since the set amount is variable,
The desired amount can be set freely, and
When the amount of water supply is insufficient or excessive, it is possible to immediately change the setting to an appropriate flow rate. In this case, the set amount can be changed even during water supply.

Others In this example, the water channel 2 is used as the power supply unit.
Since a generator 24 having a water wheel 26 that rotates at a water flow of 0 is provided, the generator 24 is closed when the solenoid valve 22 is closed.
It can be closed by the generated electric power.
Further, the electric power generated by the hydroelectric generator 24 can be supplied to the controller 48 to operate it.

In this example, the solenoid valve 22 is also a latch type valve for holding the state, and therefore the solenoid valve 2 is continuously opened after the valve is opened.
It is not necessary to supply electric power to the valve 2 to maintain the valve open state, and the electric power can be supplied only when the valve is closed to close the valve. Therefore, power consumption can be reduced. .

In addition, since the solenoid valve 22 can be opened by a human operation without relying on a power source which stores electric power in advance, the solenoid valve 22 can be operated from the opening to the closing, that is, the water supply. The operation from the start to the stop of water supply can be made to have no power supply, and for example, large-scale electric wiring work for connecting to a commercial power supply is not required, and the fixed quantity water supply device 10 can be further installed. It can be simplified. Even when a battery is used as the power source, the power consumption of the battery can be suppressed as low as possible.

Although the embodiment of the present invention has been described in detail above, this is merely an example. For example, in the above example, the fixed amount water supply device is provided with a hydraulic power generator and serves as an electric power supply unit, but in the present invention, a battery such as a dry battery may be provided and operated as a power source. .

In the above example, the water outlet is configured as a water supply port (water discharge port). However, in some cases, the water outlet may be configured as a connecting portion of the pipe, and the constant quantity water supply device may be installed in the middle of the pipe in various water supply facilities. The present invention can be configured in various modified forms without departing from the gist of the present invention, for example, it is possible to insert and connect the same to a fixed water supply function.

[Brief description of drawings]

FIG. 1 is a perspective view showing an external appearance of a constant quantity water supply device according to an embodiment of the present invention.

FIG. 2 is a front view and a side view of the same fixed amount water supply device.

FIG. 3 is a diagram showing an internal structure of the same fixed amount water supply device.

FIG. 4 is a perspective view showing the same fixed amount water supply device in a disassembled state into respective members.

FIG. 5 is a cross-sectional view showing the same fixed amount water supply device disassembled into respective members.

FIG. 6 is a block diagram showing a connection relationship between respective functional units in the same constant quantity water supply device.

FIG. 7 is an operation explanatory view of a solenoid valve and a setting operation unit in the same constant quantity water supply device.

[Explanation of symbols]

10 quantitative water supply device 12 casing 14 connection 16 water inlet 18 piping 20 waterways 22 Solenoid valve (electrically driven valve) 24 generator 26 Turbines 36 Plunger valve body 42 Latch magnet 48 controller 50 Setting operation section 100 display

   ─────────────────────────────────────────────────── ─── Continued front page    F term (reference) 2D060 BC07 CA04 CA07 CA13 CA20                 2F030 CC02 CE06 CE13 CE22 CE25                       CF05 CG01 CG09                 3H055 AA05 AA22 CC03 CC13 DD07                       EE04 FF18

Claims (9)

[Claims] 1. A quantitative water supply device for stopping water supply when an integrated flow rate of a water channel reaches a set amount, comprising: (a) a casing; (b) an inner water channel; and (c) a water outlet at the end of the inner water channel. And (d) a water channel connecting portion for connecting the internal water channel to an external upstream water channel, (e) an electric drive valve for opening and closing the internal water channel, and (f) operation control of the electric drive valve. A controller, (g) an electric power supply unit that supplies electric power to the electrically driven valve, (h) a flow rate detector that detects an integrated flow rate of the internal water channel, and (d) an integration of water supply from the start of water supply to the stop of water supply. And a setting operation section for setting and operating the flow rate, and the water channel connection section, the electric drive valve, the controller, the power supply section, the flow rate detector and the setting operation section are assembled into the casing to form a single unit as a whole. Is characterized by being configured Quantity water supply device. 2. The constant quantity water supply device according to claim 1, wherein the electrically driven valve is an electromagnetic valve. 3. The constant quantity water supply device according to claim 1, further comprising a display unit that displays a set amount of the integrated flow rate set by the setting operation unit. 4. The constant quantity water supply device according to claim 1, wherein the set amount is variable. 5. The constant quantity water supply device according to claim 1, further comprising a hydraulic power generator including, as the power supply unit, a water turbine that rotates by a water flow in the internal water channel. 6. The quantitative water supply device according to claim 5, wherein the hydroelectric generator also serves as the flow rate detector. 7. The latch type valve according to claim 1, wherein the electrically driven valve holds the opened state after the valve is opened and the closed state after the valve is closed without power supply. A constant amount water supply device characterized in that. 8. The constant quantity water supply according to claim 7, wherein the latch-type electrically driven valve has a latch magnet for holding a plunger valve body made of a magnetic material in a valve open state by magnetic force. apparatus. 9. The quantitative method according to claim 1, wherein the electrically driven valve is operated to be opened by a human operation without relying on a power source in which electric power is stored in advance. Water supply device.