JPH0747471Y2 - Combined water and purified water faucet - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mixed water mixture of water and hot water, and a combined water and purified water faucet for selectively ejecting purified water purified by a water purifier with a single faucet.

[0002] Conventionally, a mixing faucet for mixing water and hot water and discharging the water has been provided at the upper part of a sink in a kitchen or the like. It is also possible to install a water purifier that uses activated carbon or a hollow fiber filter inside the sink (a so-called under-sink water purifier), and install a water purification faucet connected to the outlet side with piping at the top of the sink. It is being appreciated. Further, the hot water supply equipment described in JP-A-3-67934
Place the water purification circuit inside the discharge pipe that discharges from the sink.
Mixing water circuit is provided, and each is installed at the tip of its discharge pipe.
The mixed water or purified water is discharged from the discharge port. So
Then, in the discharge pipe, clean water and mixed water until discharge
It is completely separated.

[0003]

[Devised Problems to be Solved] However, of one
A place where a hot water circuit and a water supply circuit are simultaneously distributed in the discharge pipe
In this case, the internal structure becomes complicated and the outer circumference of the discharge pipe is
If it is the same as the conventional one, the cross-sectional area of each water passage will be smaller.
Therefore, there is a drawback that the discharge amount must be reduced. Therefore, the present invention has a simple structure and can secure a sufficient discharge amount.
The aim is to provide a water faucet that is both practical and practical.
The following structure is adopted to achieve the purpose.

[0004]

In order to achieve the object of the present invention of the faucet is, Mizusenhon
For the operation of mixed water, which is projected on the top of the body 2a in the radial direction thereof
When the lever 3 is operated, the mixture ratio of hot and cold water changes.
It has a joint 23 at the top of its main body 2a and is guided from the water pipe 5.
The water to be introduced and the hot water introduced from the hot water pipe 6 are directed from the bottom to the front.
Lead to the mixing section 23, make a U-turn to the mixing section 23, and
Mixed with the base of the water discharge part 4 projecting on the outer periphery of the lower part of the main body 2a.
Guide the combined water, and connect the upper end of the water purification pipe 7 directly to the root
In addition to providing a confluence section 43 for purified water and mixed water there,
The solenoid valves 8, 9, 10 provided in each of the water piping 5, the hot water pipe 6, and purified water pipe 7, they each solenoid valve 8,9,1
The opening and closing operation of 0, and so either the mixing water or purified water from the water discharge unit 4 can be selectively spouting water purification
When water is discharged, the electricity of the water pipe 5 and the hot water pipe 6 is
An interlock means is provided so that the magnetic valves 8 and 9 are closed.
It is a thing.

[0005]

The faucet of the present invention can control the supply or stop of water and hot water to the mixing portion by opening and closing the electromagnetic valves of the water pipe and the hot water pipe. When both solenoid valves are opened, water and hot water are supplied to the mixing section at the same time, and the supplied water and hot water are mixed appropriately in the mixing section by operating the spout of the mixing faucet and the lever for changing the mixing ratio. The water is mixed at a ratio and discharged from the water discharge part as mixed water. Also, when both these solenoid valves are closed together, the supply of water and hot water to the mixing section is stopped,
The spouting of the mixed water is stopped regardless of the operating position of the lever. Normally, the lever of the mixing faucet is set in a water discharge state, and the temperature and the amount of water discharge are adjusted by the mixing ratio.

On the other hand, by opening and closing the solenoid valve of the purified water pipe, it is possible to control the supply or stop of purified water to the mixed tap. When the purified water is supplied to the mixed faucet, the purified water is discharged from the water discharge port as it is. In addition, in order to discharge only one of the mixed water and the purified water from the spout
Includes two solenoid valves for the water or hot water, the solenoid valve for water purification are not to open at the same time, Keru setting means for example an electrical interlock with each other. Generally, when using purified water, it is not necessary to make the flow rate variable, so even in the faucet of the present invention, the flow rate is set to a substantially constant amount with a control valve provided on either the inflow side or the outflow side of the water purifier. To use.

Since the water faucet of the present invention can discharge the mixed water and the purified water from the common water spouting portion, the space is substantially the same as when one water faucet is installed. Therefore, the space above the sink can be effectively utilized. In addition, it is possible to select the mixed water and the purified water with one touch to perform the water discharge and the water stop by the opening / closing command or the operation of the operation switch or the like.

[0008]

Embodiments of the present invention will now be described with reference to the drawings. FIG. 1 is an explanatory view showing an example of the faucet of the present invention attached to a sink. A mixed faucet 2 is attached to the top of the sink 1, and a lever 3 is provided on the faucet 2. The lever 3 is for adjusting the amount of water discharged from the water discharger 4 and the mixing ratio of water and hot water. When the lever 3 is operated up and down, the amount of water discharge is changed, and when the lever 3 is rotated left and right, the mixing ratio is changed and mixing is performed. The water temperature is adjusted.

A water pipe 5, a hot water pipe 6 and a purified water pipe 7 extending upward from the inside of the door under the sink are introduced into the mixed water faucet 2, and solenoid valves 8, 9 and 10 are provided in the respective pipes. Has been. The water pipe 5 and the hot water pipe 6 are provided with stop valves 11 and 12, respectively, and the purified water pipe 7 branched from the water pipe 5 is provided with a water purifier 14 via a stop valve 13. As the water purifier 14, a commercially available type such as activated carbon or a hollow fiber filter can be used.

A control device 15 is provided inside the door under the sink, and the control device 15 and the respective solenoid valves 8, 9 and 10 are connected by wiring 16. Further, a foot operation device 17 is arranged on the floor surface in front of the sink, and the foot operation device 17
A foot switch 18 for spouting / stopping mixed water and a foot switch 19 for spouting / stopping purified water are connected to the control device 15 by wiring 20. A connector 21 is provided in the middle of each wiring. Instead of providing the foot operation device 17, a manual operation switch such as a push button switch or a changeover switch, or a non-contact operation sensitive sensor may be provided near the top of the sink or near the tip of the water discharge part. As the operation sensitive sensor, there is known a sensor which uses infrared rays or ultrasonic waves and whose output signal changes when a hand is brought close to the sensor.

A battery 22 is housed in the control device 15 and supplies power for driving each solenoid valve and power for a control circuit. Although a commercial power supply may be used as the power supply, it is safe to use a battery like this because there is no risk of electric shock due to electrical leakage, and power wiring work such as when installing in an existing sink It is preferable because it is unnecessary and can be used even during a power failure. However, since the battery has a problem that the discharge capacity is limited, it is necessary to use a device with low power consumption as a load. Electric power is consumed to drive the control circuit and each solenoid valve, but it is required very little for the control circuit, and most is consumed to drive the solenoid valve. Therefore, when using a battery power source, it is necessary to use a low power consumption type solenoid valve.

As a low power consumption type solenoid valve, a self-holding type solenoid valve, that is, a solenoid valve capable of holding an open or closed position without being constantly energized is known. This type of solenoid valve is often of a type in which a short-time pulse (for example, 300 mm seconds for opening drive and 100 mm seconds for closing drive) is applied with different current directions only when it is opened or closed. Therefore, also in the example of FIG. 1, description will be given below assuming that such a self-holding type solenoid valve is used as each solenoid valve.

FIG. 2 is an enlarged sectional view of the mixing faucet 2 shown in FIG. In the figure, a water pipe 5 and a hot water pipe 6 are introduced from below into the mixing faucet 2 and are connected to the mixing section 23.
The outlet side of the mixing unit 23 is a water discharge pipe 24 provided in the water discharge unit 4.
The water discharge port 2 is provided at the tip of the water discharge pipe 24.
5 are provided. A water purification pipe 7 is further introduced into the mixing faucet 2 from below, and the water discharge pipe 2 is provided on the outlet side of the mixing section 23.
It is connected to 4. Water and hot water introduced into the mixing faucet 2 via the respective electromagnetic valves 8 and 9 are mixed in the mixing unit 23, and are discharged from the water discharge port 25 through the water discharge pipe 24 of the water discharge unit 4. On the other hand, the purified water pipe 7 purified by the water purifier 14
The purified water introduced into the mixing faucet 2 via the electromagnetic valve 10 is merged at the outlet side of the mixing section 23, passes through the water discharge pipe 24 of the water discharge section 4 and is discharged from the water discharge port 25 like the mixed water. It is spouted.

[0014]

FIG . 3 is a system diagram showing an example of a control circuit for controlling the opening and closing of each solenoid valve in FIG. The foot switches 18 and 19 of the foot operation device 17 are connected to the wiring 20.
Set reset type flip-flop 3
0 and 31 S terminals (set terminals) and knot elements 32,
It is connected to the R terminal (reset terminal) via 33, and outputs Q and Q (−) of the flip-flops 30 and 31.
Are respectively connected to pulse conversion circuits 34 to 37 such as monostable multivibrators.

This pulse conversion circuit outputs a high pulse of, for example, several hundred milliseconds when the input becomes high level. The outputs of the pulse conversion circuits 34 to 37 are connected to the exciting coils of the high speed relays 38 to 41, respectively, to excite them in a pulsed manner. The high speed relays 38 and 40 have two contacts 38a and 40a which are turned on when excited and two contacts 38b and 40b which are turned off respectively, and the high speed relays 39 and 41 are turned on when excited. Individual contacts 39a and 41a, and turned off 1
It has contacts 39b and 41b, respectively.

The contacts 38a and 39a are for supplying the current of the battery 22 to the solenoid valves 8 and 9 for water and hot water through the wiring 16 to open and close them, and the contacts 40a and 41a are the contacts 22a and 41a. Wiring the current of 1 to the solenoid valve 10 for water purification
It is supplied via 6 and is driven to open and close. Also, the high speed relays 38 and 39 have mutual contact points 39b and 38b.
Interlocked with each other, high speed relays 40 and 41
Are interlocked with each other by their contacts 41b and 40b so that their counterparts are not turned on at the same time. Furthermore, the exciting coil of the high-speed relay 38 for opening and driving the solenoid valves 8 and 9 and the exciting coil of the high-speed relay 40 for opening and driving the solenoid valve 10 are mutually connected so that the mixed water and the purified water are not simultaneously discharged from the water discharge part. Are interlocked with each other by contacts 40b and 38b.

Next, the operation of the faucet shown in FIG. 1 will be described with reference to FIGS .
Will be described with reference to. Foot switch for mixed water 1
When you press 8, the contact turns on and flip-flop 3
High level voltage at S terminal of 0 and knot element 32 at R terminal
A low level voltage is applied to the output Q of the low level to the high level, and the output Q of the output Q changes from the high level to the low level. When the output Q changes to a high level, the pulse conversion circuit 34 outputs a pulse of a predetermined length once, and the high-speed relay 38 is excited in a pulsed manner. As a result, the solenoid valves 8 and 9 for water and hot water are opened by a pulsed electric current flowing in the direction from a to b, so that water and hot water are supplied to the mixing faucet 2 and mixed from the water discharge part 4. Water is spouted. The solenoid valves 8 and 9 are held in the same positions even after the current disappears.

When the foot is removed from the foot switch 18, the contact is turned off, the flip-flop 30 is inverted and its output Q changes from a high level to a low level, and Q (-) changes from a low level to a high level. This causes the pulse conversion circuit 35 to emit a pulse of a predetermined length once, and the high-speed relay 39 is excited in a pulsed manner. Then, the solenoid valves 8 and 9 are closed by a pulsed electric current flowing from the direction b to the direction a, so that the spouting of the mixed water from the spouting unit 4 is stopped.

On the other hand, when the foot switch 19 for water purification is stepped on, the contact is turned on, and the output Q of the flip-flop 31 changes from the low level to the high level. Therefore, the pulse conversion circuit 36 outputs a pulse of a fixed length once, and the high-speed relay 40 is excited in a pulsed manner, so that the solenoid valve 10 for water purification causes a current to flow in a pulsed direction from a to b. As a result, the solenoid valve 10 is operated to be opened and purified water is discharged from the water discharger 4. Then, the solenoid valve 10 is maintained in the same position even after the current disappears. Foot switch 19
Also in the operation when the foot is removed from, the solenoid valve 10 is closed and the discharge of the purified water from the water discharger 4 is stopped as in the case of the foot switch 18. The same applies when other manual switches or operation sensitive switches are used instead of the foot operation device 17.

The above description has dealt with the case where the corresponding solenoid valve is opened only while the opening / closing switch is on. However, it is also possible to adopt a set / reset system, that is, a system in which a predetermined solenoid valve is operated from open to closed or closed to open each time the contact of the switch is turned on, by slightly changing the circuit. For example, in FIG. 3 , in place of the set / reset type flip-flop 30 shown in the dotted line frame, a T-type flip-flop 42 in the dotted line frame at the lower left of the figure can be used to change to such an operation method. I can. Since the output of this T-type flip-flop is inverted every time a pulse is input to the terminal T, the solenoid valve can be opened and closed each time the contact of the switch is turned on. A neon lamp or the like may be provided above the faucet 2 or in the water spouting part 4 or the like, which indicates whether the purified water is discharged from the water spouting part 4 or the mixed water is discharged.

[0022]

[Effects of the Invention] As described above in detail, the faucet of the present invention combines the mixed water and the purified water into the common merging portion at the base of the common spouting portion .
From the root of the spout to the spout,
All that is required is to provide a conduit. It has a simple structure
The amount of water discharged can be sufficiently secured, and the space becomes substantially the same as when one water faucet is installed. Therefore, the space above the sink can be effectively utilized. Shi
Also, when spitting clean water, each of the water pipe and hot water pipe
Interlock means is provided so that these solenoid valves are closed.
Therefore, it is virtually impossible for the mixed water to flow out at the same time as the purified water.
It can be prevented. Further, at the lower side of the mixing section 23, the merging section 43
Since the water purification pipe was connected to the water supply pipe,
It is possible to provide a highly practical faucet with a simplified internal structure .

[Brief description of drawings]

FIG. 1 is an explanatory view showing an example of a water faucet of the present invention attached to a sink.

FIG. 2 is an enlarged cross-sectional view of the mixed faucet 2 shown in FIG.

FIG. 3 is a diagram for controlling opening / closing of each solenoid valve in FIG .
It is a system diagram which shows an example of a control circuit.

[Explanation of symbols]

1 Sink 2 Mixed Faucet 2a Faucet Main Body 3 Lever 4 Water Discharge Section 5 Water Pipe 6 Hot Water Pipe 7 Water Purification Pipe 8 Solenoid Valve 9 Solenoid Valve 10 Solenoid Valve 11 Stop Valve 12 Stop Valve 13 Stop Valve 14 Water Purifier 15 Control Device 16 Wiring 17 Foot-operator 18 Foot-switch 19 Wiring 21 Connector 22 Battery 23 Mixing part 24 Water discharge pipe 25 Water discharge mouth 26 Water discharge pipe 27 Water discharge mouth 30 Set reset type flip-flop 31 Set reset type flip-flop 32 Knot element 33 Knot element 34 Pulse conversion circuit 35 Pulse conversion circuit 36 Pulse conversion circuit 37 Pulse conversion circuit 38 High speed relay 38a ON contact 38b OFF contact 39 High speed relay 39a ON contact 39b OFF contact 40 High speed relay 40a ON contact 40b OFF contact 41 High speed relay 41a ON contact Point 41b Off contact 42 T-type flip-flop 43 Merging section

 ─────────────────────────────────────────────────── ─── Continuation of the front page (56) Reference JP-A-3-67934 (JP, A) JP-A-4-140579 (JP, A) Actually open 2-78657 (JP, U) Actually open 4- 108654 (JP, U)

Claims (1)

[Scope of utility model registration request] 1. A top of a faucet body 2a is projected in a radial direction thereof.
By operating the lever 3 for operating the mixed water provided,
A mixing section 23 having a varying mixing ratio is provided on the upper portion of the main body 2a.
A hot water introduced from the water and the hot water pipe 6 to be introduced from the water pipe 5
And from below to the mixing section 23, the mixing section 23
A water spout that makes a U-turn and projects around the lower part of the body 2a
Guide the mixed water to the root of the part 4 and place it on the clean water pipe 7
Directly connect the ends and connect the confluence part 43 of purified water and mixed water there.
In addition to providing the solenoid valves 8, 9, 10 on the water pipe 5, the hot water pipe 6, and the purified water pipe 7, respectively, by opening and closing the solenoid valves 8, 9, 10, the mixed water from the water discharge part 4 is discharged. In the case where either one of the purified water can be selectively discharged and the purified water is discharged, the water pipe 5 and the hot water pipe 6 are in front of each other.
Note that an interlock means is provided so that the solenoid valves 8 and 9 are closed.
A water tap that is used for both mixed water and purified water.