JPH086131Y2 - Automatic open / close valve device for water passage - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a water passage automatic opening / closing valve device for an automatic faucet or the like.

(Problems to be solved by the conventional technology and device) This kind of automatic opening / closing valve device is used in an automatic faucet which detects a body or a hand by a sensor to open a valve and automatically discharges water from a faucet outlet. Has been.

By the way, in the case of this automatic on-off valve device, the sensor continues to work even when the faucet is not used at all for a long time due to travel or the like, and not only wasteful consumption of electric power,
If the control circuit malfunctions for some reason, the solenoid valve will be left open and water may continue to flow.

(Means for Solving the Problem) The present invention has been made to solve such a problem, and its gist is to operate an electromagnetic valve under the control of a control circuit and to turn off the switch. In a water passage automatic opening / closing valve device equipped with a main switch for continuously stopping the power supply from a power source and holding the electromagnetic valve in a closed state, the main body box of the device is opened on the outer surface of the main body box. Further, a battery box in a form of being partitioned from the inside of the main body box by a partition wall is provided to accommodate a dry battery in the battery box, the main switch is provided in the battery box, and the opening in the battery box is provided. Is closed by a lid having a corresponding shape.

(Operation and effect of the invention) In the present invention, since the main switch is provided in the battery box, when the water faucet is not used for a long time, by turning off the main switch, It is possible to prevent wasteful consumption of electric power.
In addition, the control circuit and the like will not malfunction and the solenoid valve will not be left open, and there is no concern that water will continue to flow.

The present invention is characterized in that the main switch is arranged in the battery box. As a result, not only the dry battery but also the waterproof property such as prevention of water getting wet to the main switch can be secured, and it can be stored together in one place. That is, it is not necessary to provide a box for the main switch separately from the battery box.

At the same time, since the main switch can be hidden inside the battery box, the appearance is neat and the appearance is good.In addition, when such an automatic opening / closing valve device is installed in a faucet such as a public washroom, the main switch is You can avoid being tampered with.

(Embodiment) Next, an embodiment in which the present invention is applied to a water passage automatic opening / closing valve device of an automatic faucet will be described in detail with reference to the drawings.

In FIG. 2, reference numeral 10 is a water discharge port provided in the washbasin 12, and water is discharged and stopped from the discharge port at the tip based on the operation of the water passage automatic opening / closing valve device arranged in the lower part of the washbasin. . The water passage automatic opening / closing valve device is configured by accommodating a solenoid valve and its control circuit in a box (main body box) 14, and is connected to a sensor provided at a water outlet 10 via a lead wire 16. . Here, the sensor detects when a hand is inserted below the water discharge port and emits a detection signal. The detection signal is input to the control circuit of the water passage automatic opening / closing valve device, and the electromagnetic valve is opened under the control of the control circuit to supply water to the water outlet 10.

The box 14 is composed of a front box 20 and a rear box 18 which are independent of each other as shown in FIGS. In the rear box 18, as shown in FIG. 3, a stopcock 22, a check valve 24 integral with the stopcock 24, and a main valve portion 2 are also provided.
6, solenoid valve 28, generator 30 are incorporated. Here, the solenoid valve 28 is constructed by opening and closing a pilot valve, which is provided separately from the main valve portion 26, so that the main valve portion 26 provided on the water passage is
The power generator 30 rotates the impeller arranged on the water passage by hydraulic force to generate electric power, and supplies power to the storage battery. The solenoid valve 28 normally operates by using this storage battery as a power supply, and operates by a dry battery 56 described later as a power supply when the voltage of the storage battery drops below a certain level.

As shown in FIG. 4, the water stop plug 22 has a connecting end protruding from the rear end opening 32 of the rear box 18, and is connected to a water supply pipe embedded in the wall surface 34.

In the water passage automatic opening / closing valve apparatus of this example, water from the water supply pipe reaches the main valve portion 26 via the water stopcock 22 and the check valve 24. When the main valve portion 26 is opened by the operation of the solenoid valve 28, the outlet 35 is rotated while rotating the impeller of the generator 30 via the main valve portion 26.
To Further, it reaches the water discharge port 10 through the water supply elbow 36 and the water supply pipe 38 connected to the outlet 35, and is discharged from the discharge port at the tip thereof. The specific constructions and operations of the solenoid valve 28, the main valve portion 26, and the generator 30 are not directly related to the present invention, and therefore a detailed description thereof will be omitted here.

The front box 20 has a lid 40 that constitutes most of the front box 20. The lid 40 is detachably fitted to the fitting recess 42 on the rear box 18 side at the fitting projection 42 at the base end thereof. The front box 20 has a width in the left-right direction larger than that of the rear box 18,
One end (the left end in the figure) in the same direction is projected from the end of the rear box 18 to form a step with the rear box 18.

The front box 20 is a rear box depending on the partition wall 46.
It is cut off from 18, and the control circuit 48 is accommodated therein. The control circuit 48 is connected to the solenoid valve 28 via the lead wire 16 as shown in FIG. 5, and is provided at the water outlet 10 via the lead wire 16 as shown in FIG. Connected to the sensor. In addition, in FIG.
49 is a connector connection part.

As shown in FIG. 4, a cylindrical portion 50 is formed integrally with the lid 40 on the front box 20. This cylindrical part
50 is provided to secure an operation space for operating the stopper body 52 of the water stopcock 22, and is provided concentrically with the stopper body 52 and in a state of penetrating the partition wall 46 in a watertight manner. ing.

On the other hand, the front of the front box 20 is shown in Figs.
As shown in the figure, a battery box 54 is provided, and a dry battery 56 is housed inside. Battery 56
As described above, it is used as a power source when the potential of the storage battery drops.

The battery box 54 is opened on the outer surface of the box 14 and is partitioned from the inside of the box 14 by a partition wall. Inside the box 14, a main switch 58 is provided, and the power supply from the power supply is stopped by the switch operation, so that the electromagnetic The valve 28 is adapted to be kept closed. Therefore, if you do not use the faucet for a long time at all, use the main switch.
By turning off 58, it is possible to prevent wasteful consumption of electric power, and at the same time, it is possible to prevent the solenoid valve 28 from being left open due to a malfunction of the control circuit 48 and the like, so that water continues to flow. The opening of the battery box 54 can be closed by the lid 60. Therefore, the main switch 58 is not exposed to the outside, which makes the appearance of the switch arrangement look neat and improves the design. In addition, it is possible to prevent the main switch 58 from being operated by mischief.

Although the embodiments of the present invention have been described in detail above, the present invention can be configured in other forms.

For example, the present invention is applicable to a water passage automatic opening / closing valve device of a type in which a water stopcock is arranged outside the box, and in the above example, a single water faucet is explained as an example. The present invention can be applied to a mixed faucet, and in some cases, the present invention can be applied to a water passage automatic opening / closing valve device other than an automatic faucet. It can be configured in a form in which various changes are made based on the knowledge of the trader.

[Brief description of drawings]

FIG. 1 is a front view of an essential part showing an inside and a peripheral portion of a battery box arranged in a box front portion of a water passage automatic opening / closing valve device according to an embodiment of the present invention. FIG. 2 includes the same opening / closing valve device. FIGS. 3 and 4 are a partially cutaway front view and a partially cutaway plan view of the same on-off valve device, respectively.
FIG. 5 is a perspective view of the same on-off valve device with the front box open, and FIG. 6 is a perspective view from the front side of the box of the same on-off valve device. 28: Solenoid valve, 48: Control circuit 54: Battery box, 56: Dry battery 58: Main switch, 60: Lid

Front page continuation (72) Koharu Ogawa, 1-1, Showa-cho, Kariya city, Aichi prefecture, Nihon Denso Co., Ltd. (72) Inventor, Kimiaki Yamaguchi, 1-1, Showa-cho, Kariya city, Aichi prefecture, Nihon Denso Co., Ltd. (56) References Japanese Patent Laid-Open No. 63-101590 (JP, A)

Claims (1)

[Scope of utility model registration request] 1. A main switch, which operates a solenoid valve under the control of a control circuit, keeps the power supply from a power source continuously stopped by turning off the switch, and holds the solenoid valve closed. In the water passage automatic opening / closing valve device, the main body box of the device is provided with a battery box that is opened at the outer surface of the main body box and is separated from the inside of the main body box by a partition wall, and a dry battery is placed in the battery box. An automatic water passage opening / closing valve device, characterized in that the main switch is housed in the battery box, and the opening of the battery box is closed by a lid having a corresponding shape.