JPH03147942A - Automatic faucet - Google Patents

Abstract

PURPOSE:To perform automatic water delivery and cut-off without the occurrence of malfunction by a method wherein a water delivery unit is mounted in a down state to a water plug head and a cut-off sensor is mounted in a sideways state to a cut-off sensor unit. CONSTITUTION:A delivery sensor unit 3 is mounted in a down state to a faucet head 1 mounted to the tip of a pipe 2, and a cut-off sensor unit 4 is mounted in a sideways state to a cut-off sensor unit 4. When a user positions his hand in a position below the faucet, the hand is detected by the delivery sensor unit 3 to send a signal to a delivery drive circuit 17, an solenoid valve 18 is opened, and water is delivered through a delivery port 5. During delivery of water, when a hand is positioned sideways of the water plug head, the hand is detected by the cut-off sensor 4 to send a signal to the drive circuit 17, and the solenoid valve 18 is closed to cut-off. This constitution ceases individual detection of delivery and cut-off and removes a fear of malfunction occurring.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an automatic faucet that automatically discharges and stops water.

(Prior Art) Although automatic faucets have been known in the past, they often malfunction when it comes to discharging water or stopping water.

(Problems to be Solved by the Invention) An object of the present invention is to solve the above-mentioned conventional problems and provide an automatic water faucet that is free from malfunction.

(Means for Solving the Problems) In order to achieve the above objects, the present invention includes: 1. An automatic faucet 2 in which a water discharging sensor unit and a water stop sensor unit are provided in the faucet head; An automatic faucet 3 that has a timer circuit and has a water discharge sensor unit and a water stop sensor unit installed in the faucet head, and a faucet that has a hot water mixing chamber and is capable of dispensing hot water and has a water discharge sensor unit and a water stop sensor unit that are installed in the faucet head. An automatic faucet 4 provided on the head, an automatic faucet 5 having a manual water stop switch and a manual water discharging switch, and a water discharging sensor unit and a water stop sensor unit provided on the faucet head, a timer circuit, and a manual water stop switch. and an automatic faucet 6 having a manual water discharging switch and having a water discharging sensor unit and a water stop sensor unit installed in the faucet head; An automatic faucet 7 with a water sensor unit installed in the faucet head, a timer circuit,
It has a hot water mixing chamber, a manual water stop switch, a manual water discharge switch, and a water discharge sensor unit and a water stop sensor unit are installed in the faucet head! We are proposing a power faucet.

(Function) (1) Since the automatic faucet of the present invention detects water discharge and water stoppage separately, there is no risk of malfunction.

(2) Since the automatic faucet of the present invention separately detects water discharge and water stop, it is possible to perform water discharge and water stop in a manner that is natural for the user.

(Example) The automatic faucet of the present invention will be described below according to an example shown in the drawings.

1 to 3 show an automatic faucet of the present invention, which includes a faucet head (1) provided at the tip of a vibrator (2).
has.

A water discharge sensor unit (3) such as an infrared sensor facing downward is attached to the faucet head (1).

Furthermore, a water stop sensor unit (4), such as an infrared sensor, is attached to the faucet head (1) and is oriented sideways.

Water discharge sensor unit (3) and water stop sensor unit (4)
) is composed of a light projecting unit, a light receiving unit, and a detection circuit as shown in FIG.

Next, the water discharge sensor unit (3) and the water stop sensor unit (4) are connected to the water discharge drive circuit (]+7 via a flip-flop (16).

The water discharge drive circuit (17) opens and closes a solenoid valve (18) installed in the water channel to the faucet head (1).

Next, the control circuit for the faucet head (1) and the faucet base is connected to the vibrator (
2) is connected by a wiring (24) running inside the sheath (22).

The functions of the automatic faucet of the present invention shown in the following embodiments are as follows.

In other words, when spouting water, the user must hold his/her hand over the faucet head (+
).

As a result, the water spouting sensor unit (3) is activated by the water spouting drive circuit (
17) to open the solenoid valve (18).

As a result, water is spouted from the spout (5) and the user uses the water.

Next, when turning off the water, the user positions his hand on the side of the faucet head (1).

As a result, the water stop sensor unit (4) is activated by the water discharge drive circuit (
Send a signal to 17) to close the solenoid valve 18).

This will shut off the water and end the use of water.

5 and 6 show another automatic faucet according to the invention, which has the following features compared to the one in FIGS. 1 to 4.

In other words, the water discharge sensor unit (3) and the water discharge drive port 1 (+
7) is provided with a timer circuit (19).

The timer circuit (19) closes the solenoid valve (+8) after a certain period of time has elapsed after the start of water spouting to prevent forgetting to stop the water.

7 and 8 show another automatic faucet according to the invention, which has the following features compared to the previous embodiment.

That is, a hot water mixing chamber (25) is provided to allow hot water to be tapped.

Furthermore, a manual water stop switch (20) and a manual water discharge switch (
21) is provided so that water can be discharged and stopped in priority over the water discharge sensor unit (3) and the water stop sensor unit (4).

(Effects of the Invention) The embodiments of the automatic water faucet of the present invention are as described above, and the effects thereof are listed below.

(In particular, the automatic faucet of the present invention detects water discharge and water stoppage separately, so there is no risk of malfunction.

(2) Since the automatic faucet of the present invention separately detects water discharge and water stop, it is possible to perform water discharge and water stop in a manner that is natural for the user.

[Brief explanation of the drawing]

Fig. 1 is a side view of the automatic faucet of the present invention Fig. 2 is a front view of the same as above Fig. 3 is a sectional view of Fig. 1 Figure 6 is a front view of the automatic faucet shown in Figure 5. Figure 7 is a front view of the same automatic faucet as above. Figure 8 is a circuit diagram of the automatic faucet shown in Figure 7. Faucet head 2: Pipe 3: Water discharge sensor unit 4: Water stop sensor unit 5: Water spout 13: Light emission control circuit 16: Flip-flop 17: Water discharge drive circuit 18: Solenoid valve 19: Timer circuit 20: Manual water stop switch 21:
Manual water discharging switch 22: Sheath 23: Middle vibe 24: Wiring
25: Hot water mixing chamber 26: Bypass path

Claims (1)

[Scope of Claims] 1. An automatic faucet 2 in which a water discharge sensor unit and a water stop sensor unit are provided in the faucet head; a water discharge sensor unit and a water stop that have a timer circuit that stops water at a certain time after starting water discharge; An automatic faucet 3 in which a sensor unit is installed in the faucet head, an automatic faucet 4 that has a hot water mixing chamber and is capable of dispensing hot water and has a water discharging sensor unit and a water stop sensor unit in the faucet head, and a manual water stop. An automatic faucet 5 having a switch and a manual water discharging switch, and a water discharging sensor unit and a water stop sensor unit are provided on the faucet head; An automatic faucet 6 with a water sensor unit installed in the faucet head, an automatic water faucet 6 with a water leakage mixing chamber, a manual water stop switch, and a manual water discharge switch, and a water discharge sensor unit and a water stop sensor unit provided in the faucet head. Plug 7, timer circuit,
An automatic faucet that has a hot water mixing chamber, a manual water stop switch, a manual water discharge switch, and a water discharge sensor unit and a water stop sensor unit installed in the faucet head.