JPH07243228A - Foot-operated automatic water supply device - Google Patents

Abstract

PURPOSE:To improve workability by integrating and providing a motor-operated valve for opening and closing a hot water delivery pipe line and a control section for driving and controlling the valve in a waterproof box having waterproofing function. CONSTITUTION:A control valve 8 is connected to a motor-operated valve 5 laid in a pipe line where hot water mixed with a mixing faucet 3 flows, and both of the valves 5 and 8 are housed in a pair of waterproof boxes 15A and 15B in watertight state. Also, one end of a wire 17 is connected to the switch section 8a of the valve 8 via an O-ring 16, and the other end thereof to a foot switch 9 in a switch box 14. Then, when the switch 9 is operated by a foot, the switch section 8a is turned on and off via the wire 17, and drive current is supplied to the valve 5 via the valve 8, thereby opening and closing the valve 5.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a foot type automatic water supply device for opening and closing water supply by operating with a foot.

[0002]

2. Description of the Related Art Conventionally, a foot type automatic water supply apparatus has a structure as shown in FIG.
Hot water in which hot water is mixed in an appropriate amount is generated in a mixing faucet 3 in which a hot water pipe 1 for passing hot water and a water pipe 2 for passing water are connected, and the hot water is supplied to a shower head 6 through a discharge pipe 4. Is ejected from the shower head 6, but an electric valve 5 is provided in the conduit of the discharge pipe 4, and a manual bypass valve 7 is provided in parallel with the electric valve 5. The control unit 8 is connected to the control unit 8, and a foot switch 9 is connected to the control unit 8.

FIG. 7 is a perspective view of a wash basin 10 equipped with such a foot type automatic water supply apparatus. The shower head 6 and the mixed faucet are mounted on a counter 12 of the wash basin 10 provided with a wash basin 11. 3 is erected, the foot switch 9 is mounted in the switch box 14 in the central portion of the sink skirting board 13 on the front surface of the bottom of the washbasin 10, and the lever of the mixing faucet 3 is installed. 3a is operated to adjust the mixing amount of hot and cold water, and the foot switch 9 is operated with a foot, whereby the electric valve 5 is opened and closed via the control unit 8,
Each time the foot switch 9 is stepped on, the motor-operated valve 5 is repeatedly opened and closed so that the hot water can be discharged from the shower head 6 and stopped by the foot switch 9. Further, in the event of a power failure or failure of the motor-operated valve 5, the manual bypass valve 7 can be opened and the shower head 6 can be made to discharge water by operating the lever 3a of the mixed water faucet 3.

In such a conventional structure, since the motor-operated valve 5 and the controller 8 are composed of electric parts,
If water droplets or the like are attached, it is dangerous and it is easy for breakdowns to occur. Therefore, it is necessary to take waterproofing measures for each of them, and there is a problem that the waterproofing measures increase the cost. In addition, the motor-operated valve 5, the control unit 8 and the foot switch 9 need to be arranged on the wash basin 10 at separate and independent positions, which results in poor workability and poor maintainability. Further, since the hot water pipe 1 and the water pipe 2 connected to the mixed water tap 3 are also connected to water taps such as the kitchen side, for supplying hot water to other water taps as well, the kitchen side etc. When the faucet is suddenly closed, the water pipe 1 and the water pipe 2 are caused by the water hammer phenomenon.
Therefore, there is a problem that the water pressure is applied to the mixed faucet 3 and the motor-operated valve 5, and the internal members of the mixed faucet 3 and the motor-operated valve 5 are likely to be damaged.

[0005]

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems of the prior art, and does not provide a foot type automatic water supply device which has good workability and good waterproofness. With the object, the first gist thereof is that an electric valve for opening and closing a hot water discharge pipe, a control unit for driving and controlling the electric valve, and a control unit connected to the control unit and operated by a leg In a foot type automatic water supply device including a foot switch for opening and closing an electric valve, the electric valve and the control unit are integrally provided in a waterproof box having waterproofness. The second gist is that the foot switch is integrated with the waterproof box.
In addition, for the purpose of satisfactorily preventing the adverse effect due to the water hammer phenomenon, the third gist thereof is a mixed faucet connected to a water pipe and a hot water pipe in parallel with another faucet, and discharge of the mixed faucet. In a foot type automatic water supply device having a motor-operated valve that is opened and closed by a foot switch in the conduit, a pressure relief valve is provided in the discharge conduit between the mixing faucet and the motor-operated valve.

[0006]

In the first aspect, the motor-operated valve and the control unit are integrally provided in the waterproof box, so that the motor-operated valve and the control unit have a completely waterproof structure, and there is no risk of electric leakage or the like. The waterproof box can ensure the waterproof property and reduce the cost. Also, it is not necessary to install the motorized valve and the control unit in separate positions, and the motorized valve can be installed by installing one waterproof box. And the control part is installed, and the workability is improved. Further, in the second aspect, since the foot switch is also integrated, the workability is improved, the cost can be reduced, and the maintenance and the like can be facilitated. Further, in the third aspect, since the pressure relief valve is provided, even when a water faucet of another kitchen or the like is closed and a water hammer phenomenon occurs, pressure is released from the pressure relief valve and the mixed faucet is released. Moreover, it is possible to favorably prevent a failure or the like without adversely affecting the electric valve due to pressure.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a schematic configuration diagram of the foot type automatic water supply apparatus of the first embodiment, and the same members as those of the conventional structure shown in FIG. A hot water pipe 1 and a water pipe 2 are connected to the mixed faucet 3, and hot water and water are introduced into the mixed faucet 3, respectively, and a handle 3 a of the mixed faucet 3 is provided.
The temperature of the hot water to be mixed can be adjusted by controlling the opening / closing degree and the opening / closing degree of the hot water pipe 1 and the water pipe 2 by operating the hot water pipe 1 and the water pipe 2. An electric valve (solenoid valve) 5 for opening and closing the pipeline is provided in the pipeline of the discharge pipe 4, and is supplied to the shower head 6 and the like through the control panel in this example. 8 is directly connected and integrated, and the control panel 8 and the motor-operated valve 5 are covered with a pair of waterproof boxes 15A and 15B from both sides to be covered in a watertight manner.
5A and 15B are integrated, and the motor-operated valve 5 and the control panel 8 are installed in a watertight manner inside the switch panel 8a provided on the control panel 8 from the outside of the waterproof box 15B to the O-ring 16B. The tip end of the wire 17 can be connected while ensuring water tightness via the, and the other end of the wire 17 is connected to the foot switch 9 in the switch box 14.

In such a structure, by operating the foot switch 9 with a foot, the switch portion 8a is turned on and off through the wire 17, and a drive current is supplied to the electric valve 5 through the control panel 8. The electrically operated valve 5 is opened and closed following the operation of the foot switch 9. Since the electric valve 5 and the control panel 8 are integrally provided in the waterproof boxes 15A and 15B as described above, the electric parts can be reliably provided with a waterproof structure to eliminate the risk of electric leakage and the like. It is enough to secure the waterproof structure at one place, and it is possible to reduce the cost and make the structure compact, and since the motor-operated valve 5 and the control panel 8 are integrated, the workability is good and the maintenance is easy. Will be things.

Next, FIG. 2 shows a second embodiment. In this embodiment, the foot switch 9 is provided inside the switch box 14, and the inner side of the foot switch 9 is formed in a watertight manner via the partition plate 14a. In the switch box 14 of the above, the electric valve 5 and the control panel 8 are integrally incorporated,
On the upper surface of the switch box 14, a piping socket 18A,
18B is formed, and each of the piping sockets 18A, 18B
In addition, the inflow side and the outflow side of the discharge pipe 4 can be connected with one touch. That is, the piping socket 18A is connected to the inflow side of the motor-operated valve 5 in the switch box 14, and the piping socket 18B is also connected to the outflow side of the motor-operated valve 5 in the switch box 14 to open and close the motor-operated valve 5. The water spouted from the mixed faucet 3 side can be supplied to the shower head 6 side or stopped. Also, by stepping on the foot switch 9,
The proximity sensor or the like of the control panel 8 provided inside the partition plate 14a is activated to transmit the operation of the foot switch 9 to the electric valve 5.

In such a structure, if one switch box 14 is installed at the bottom of the washbasin, the piping sockets 18A, 18B on the upper surface of the switch box 14 are installed.
The construction is completed by inserting and connecting the discharge pipe 4 connected to the mixed faucet 3 and the discharge pipe 4 connected to the shower head 6 with one touch, and the workability is extremely good and easy. In addition, the motor-operated valve 5 and the control unit 8 can be installed inside the switch box 14 with a completely waterproof structure to prevent electric leakage. Further, maintenance can be easily performed by taking out the socket box 14.

Next, FIG. 3 shows a third embodiment, and FIG. 4 is a schematic configuration diagram thereof. The hot water pipe 1 and the water pipe 2 connected to the mixed tap 3 have check valves 19,
19 is provided, and the upstream side thereof is extended to a kitchen faucet 21 provided in, for example, a kitchen.
And the water pipe 2 are connected, the kitchen water faucet 21 and the mixed water faucet 3 are installed in parallel with the hot water pipe 1 and the water water pipe 2, and the discharge pipe 4 of the mixed water water faucet 3 has a conventional structure. Motor valve 5 that opens and closes by operating the foot switch 9 in the same manner as
And a manual bypass valve 7 are provided in parallel. In this example, a pressure relief valve 20 is provided in the conduit of the discharge pipe 4 between the mixed faucet 3 and the electric valve 5, and the pressure relief valve 20 is shown in a sectional view in FIG. 5, for example. When the pressure in the discharge pipe 4 rises, the spring 20b is pressed by the pressure and the valve 20
a is opened and the discharge hole 20d formed in the cap 20c is opened.
The pressure water is released from the outside to the outside, and the valve 20a is kept closed by being biased by the spring 20b when the pressure is low.

In such a structure, for example, when the kitchen faucet 21 is suddenly closed, water pressure is generated in the hot water pipe 1 and the water pipe 2 due to the water hammer phenomenon, and the water pressure is mixed. The internal parts of the faucet 3 are adversely affected and also the motor-operated valve 5 is adversely affected. Especially, the pressure tends to be trapped between the mixed faucet 3 and the motor-operated valve 5. However, such pressure is released by the pressure relief valve 20. It is possible to satisfactorily prevent the malfunction and damage of the mixed water faucet 3 and the motor-operated valve 5 by allowing the water to escape to the outside through the satisfactorily.

[0013]

According to the present invention, an electric valve for opening and closing a hot water discharge pipe, a control unit for driving and controlling the electric valve, and a control unit connected to the control unit for operation by a foot to operate the electric valve. In a foot type automatic water supply device having a foot switch for opening and closing a valve, the electric valve and the control unit are integrally provided in a waterproof box having a waterproof property, so that the electric valve and the control unit are provided at one location. It is possible to secure a waterproof structure with a waterproof box, to prevent leakage accidents satisfactorily, and to make it compact because it is integrated, which makes it easy to install it on the washbasin and reduces the cost. In addition, it has an effect of facilitating maintenance and the like.

Further, by integrating the foot switch with the waterproof box, the constituent members can be integrated with each other to be compact and the construction can be facilitated, and the cost can be reduced. Can be secured in one place to ensure good waterproofness, and maintenance is also gathered in one place, which has the effect of being easy.

Furthermore, a foot-type automatic system equipped with a water mixer and a water mixer connected in parallel with other water mixers, and an electric valve which is opened and closed by a foot switch in the discharge conduit of the water mixer. In the water supply device, by providing a pressure relief valve in the discharge pipe between the mixed faucet and the motor-operated valve, the pressure of the water hammer phenomenon that occurs when another faucet is closed is favorably controlled by the pressure relief valve. It has the effect that it can be satisfactorily prevented from failing and being damaged by letting it escape to the outside through the mixing faucet and the motor-operated valve.

[Brief description of drawings]

FIG. 1 is an exploded perspective configuration diagram of a foot type automatic water supply apparatus according to a first embodiment.

FIG. 2 is an exploded perspective configuration diagram of a second embodiment.

FIG. 3 is a schematic perspective configuration diagram of a third embodiment.

FIG. 4 is a schematic piping configuration diagram of a third embodiment.

FIG. 5 is a sectional configuration diagram of a pressure relief valve according to a third embodiment.

FIG. 6 is a schematic configuration diagram of a conventional foot type automatic water supply device.

FIG. 7 is a perspective configuration diagram showing a state in which the automatic water supply apparatus of FIG. 6 is installed on a washbasin.

[Explanation of symbols]

 1 Hot Water Pipe 2 Water Pipe 3 Mixed Water Faucet 4 Discharge Pipe 5 Electric Valve (Solenoid Valve) 6 Shower Head 8 Control Unit (Control Panel) 9 Foot Switch 14 Switch Box 14a Partition Plate 15A, 15B Waterproof Box 17 Wire 18A, 18B Piping Socket 20 Pressure relief valve

Claims (3)

[Claims] 1. A motor-operated valve that opens and closes a hot water discharge pipe, a control unit that drives and controls the motor-operated valve, and a foot connected to the control unit to operate the motor-operated valve through the control unit. In a foot type automatic water supply device including a foot switch, a foot type automatic water supply device in which the electrically operated valve and the control unit are integrally provided in a waterproof box having waterproofness. 2. The foot-type automatic water supply device according to claim 1, wherein the foot switch is integrated with the waterproof box. 3. A foot type automatic system comprising a water faucet and a mixed faucet connected to the hot water pipe in parallel with another faucet, and an electric valve which is opened and closed by a foot switch in a discharge conduit of the mixed faucet. In the water supply device, a foot type automatic water supply device is characterized in that a pressure relief valve is provided in a discharge pipe line between the mixed water faucet and the electric valve.