JPH023021Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a washing device such as a hand washing device or a wash basin device, and more particularly to a washing device that detects the use of the washing device with a detector and automatically controls the water supply to the washing device.

Various structures have been known for this water washing device, but the simplest one is the
There is a publication number.

To explain the method disclosed in Japanese Patent Publication No. 37-937, a light emitter is attached to the front of the base of a water spouting device installed on the top of the water washer, and a light receiver is attached separately near the spout at the tip. The solenoid valve is configured to open while the valve is shut off.

Therefore, in this conventional type, the emitter and receiver are installed separately at separate locations, making wiring difficult, requiring seals in two places, making assembly troublesome, and blocking the light beam makes sensing difficult. In order to do this, it is necessary to bring the hand quite close to the water spouting device, and the hand may come into contact with the water spouting device, making it difficult to use.

The technical problem to be solved by the present invention is to widen the sensing range of the detector and to arrange the emitter and receiver in close proximity.

The technical means taken by the present invention to achieve the above technical problem consists of a water washer, a base part, and an arm part that extends forward continuously from the base part and has a spout on the lower surface of its front end. The water dispensing device is formed of a water washer, the base part is attached to the counter surface of the water washer, and the water spout faces the bowl part of the water washer, and a light emitter and a light receiver are provided. a diffuse reflection type photoelectric detector that generates a sensing signal when the reflected light is received by a light receiver; an electric control section that generates an output based on the sensing signal; and an electric control section that generates an output based on the sensing signal; and a solenoid valve for supplying water to a water discharging device, and the photoelectric detector is formed by housing a projector and a light receiver facing the transparent window in a synthetic resin case having a transparent window on one side,
The photoelectric detector is mounted in a recess provided in the front surface of the base portion of the water discharging device so that the transparent window portion is substantially flush with the front surface of the base portion.

The photoelectric detector is a diffuse reflection type photoelectric detector in which the light beam projected from the light emitter is reflected on the body of the water washer user, and the receiver receives this reflected light to generate a sensing signal. Therefore, it can be detected without having to bring your hand close to the detector, and you will not bump your hand against the water spouting device.

Further, since the projector and the light receiver are placed side by side in one case and attached to the water discharging tool, the projector and the light receiver are integrated in close proximity.

Since the present invention has the above configuration, it has the following advantages.

(1) The photoelectric detector is formed by housing the emitter and receiver in a synthetic resin case, and is mounted in a cartridge style in a recess provided in the front of the base of the water dispensing device, so there is no possibility of the photoelectric detector malfunctioning. The case can be removed from the water dispensing device and easily replaced with another photoelectric detector. Therefore, repair of the photoelectric detector is easy.

Hereinafter, one embodiment of the present invention will be described based on the drawings.

In the embodiment shown in the drawings, a hand-washing device is shown as the water-washing device.

The hand wash basin a is a wash basin that can be changed as needed, such as a washbasin. Therefore, these will be collectively referred to as the water washer a hereinafter.

The water washer a is attached to the wall of the building, and a water spout b is provided at the rear of the counter surface 4.

The water discharging tool b has a base part 1 and an arm part 3 extending diagonally upward and forward continuously from the upper end of the base part 1, and has a roughly shaped side surface, and has a discharge water flow path 10 therein. On the lower surface of the front end of the arm portion 3, a water spout 2 communicating with the discharge water flow path 10 is opened downward and slightly tilted forward. A foaming device 11 is attached to the spout 2 to prevent water from scattering.

This water spout b has a cylindrical attachment part 12 at the lower end of the base part 1, and the attachment part 12 penetrates the counter surface 4 of the washbasin a and extends to the back surface of the washbasin a,
A nut 113 is screwed onto its outer peripheral surface.

That is, by tightening the nut 13, the base portion 1 of the water spout tool b is attached to the counter surface 4 of the wash basin a, and the spout 2 faces the ball portion 5 of the wash basin a.

A secondary side water supply connecting pipe 14 communicating with the secondary side of a solenoid valve e, which will be described later, is inserted into the water discharging tool b from the mounting portion 12 and connected to the discharge water flow path 10.

Further, the water discharging tool b is provided with a diffuse reflection type photoelectric detector c on the front surface of the base portion 1.

The diffuse reflection type photoelectric detector c includes a light emitter 6 such as a light emitting diode and a light receiver 7 such as a photo transistor. The light receiver 7 is configured to emit a sensing signal when it receives light, and the light emitter 6 and the light receiver 7 are housed in parallel in a case 9 made of synthetic resin, for example, heat-resistant ABC resin, and are mounted on the front side of the case 9. It is fitted into a cylindrical guide 40 integrally provided on the cover plate 15 and faces the transparent window 8 provided at the center of the cover plate 15.

This diffuse reflection type photoelectric detector c has a cover plate 15 in a recess 16 provided on the front surface of the base 1 of the water discharging tool b.
The cord 17 is fitted in a cartridge manner and secured with screws so that the front surface is substantially flush with the front surface of the base part 1, and the cord 17 taken out from the back of the case 9 is pulled out from the back side of the wash basin a from the attachment part 12 of the water spout b, and then Connect to the control section d using a connector or the like 18.

That is, the recess 16 of the water spout b has an annular flange 30 protruding inward toward the front thereof, and the bottom wall 31 deeper than the flange 30 has an adjustment screw mounting hole 32. A screw insertion hole 33 and a drain hole 34 are provided on both the left and right sides, respectively. The adjustment screw mounting hole 32 is located slightly further back than the screw insertion hole 33.

On the other hand, plate-shaped ears 36 in which screw mounting holes 35 corresponding to the screw insertion holes 33 are bored are formed protruding from both left and right side surfaces of the case 19 of the photoelectric detector c.

Then, the photoelectric detector c is fitted into the recess 16 of the water spout b with the gasket 37 interposed between the back surface of the cover plate 15 and the front surface of the flange 30 of the water spout b, and the screw 38 is inserted into the water spout tool b. The screw insertion hole 33 is inserted from the bottom wall 31 side of b, and screwed into the screw mounting hole 35 of the photoelectric detector c, and the case 19 is pulled toward the bottom wall 31 side and fixed. In response to this fixation, the photoelectric detector c is tilted so that the upper front surface of the cover plate 15 is retracted to the back side.
The inclination of the adjustment screw 39 from the side can be corrected by bringing the tip of the adjustment screw 39 into contact with the lower surface of the case 19 and pushing up the case 19.

The drain hole 34 is for draining water to the outside when water accumulates on the bottom wall 31 of the recess 16 for some reason.

In this embodiment, a diffuse reflection type photoelectric detector c
In this case, the center axis of the projecting beam of the projector 6 is located at the water outlet 2.
By directing the water diagonally forward so as to avoid the projection space formed by projecting the water in a vertical direction onto the washbasin a, the discharged water flow is sensed so as not to generate a sensing signal.

On the other hand, the solenoid valve e is a known solenoid valve that opens when energized and opens when the energization is turned off. The inlet 20 is connected to a water supply pipe buried in the wall via a temporary side water supply connection pipe 23 equipped with a stopcock 21 and a strainer 22, and the outlet 24 is connected to a water supply pipe b via a secondary side water supply connection pipe 14. Connect to.

The electrical control section d receives the sensing signal from the diffuse reflection type photoelectric detector c and controls the energization of the solenoid valve e, and is equipped with the necessary circuitry and waits for a predetermined sorting time T after the detector c starts sensing. ₁ (e.g. several msec.~0.5sec.)
Later, while the detector c is sensing the human body, the solenoid valve e is continuously energized, and after a predetermined delay time T ₂ (for example, 0.5 sec. to 2 sec.) after the sensing ends, the solenoid valve e is energized. Further, the electric control unit d is configured to stop the energization of the solenoid valve e, that is, the water spouting time is set to be slightly longer than the time required for normal hand washing or washing the face, or the continuous water spouting prohibition time _T3. (for example
2 min. to 4 min.), and is configured to stop discharging water when the continuous water discharging time reaches the prohibition time _T3 even during sensing.

In this water washing device, when a person stands in front of the washing machine a for hand washing etc., the detector c automatically detects this and sends a signal to the control section d, and the control section d receives this signal. Based on this, the solenoid valve e is opened to start water supply.

This water supply starts after a sorting time _T1 after the detector c starts sensing the user's hand, etc., and stops after a delay time _T2 after the detection disappears.

If the water supply continues longer than the time required for normal hand-washing or washing, the water supply will automatically stop after the prohibition time _T3 even if sensing is in progress.

In addition, in the figure, 25 is a drain pipe, 26 is a soap liquid container, 2
7 is a bypass valve for power outage compensation.

[Brief explanation of the drawing]

Fig. 1 is a front view of a flushing device showing an embodiment of the present invention, Fig. 2 is an enlarged front view of a water discharging device equipped with a diffuse reflection type photoelectric detector, and Fig. 3 is a cross-sectional view taken along the - line in Fig. 2. , FIG. 4 is a front view of the diffuse reflection type photoelectric detector, FIG. 5 is a side view, and FIG. 6 is a partially cutaway plan view.
Fig. 7 is a perspective view seen from the back side, Fig. 8 is an enlarged central sectional view of the water discharging device, Fig. 9 is a sectional view taken along the - line in Fig. 8, and Fig. 10 is a sectional view taken along the - line in Fig. 8. . a... Water washer, b... Water discharging device, c... Diffuse reflection photoelectric detector, d... Electric control unit, e... Solenoid valve, 1... Base of water discharging device, 2... Water washer spout, 3... Arm of water spout, 4... Counter surface of washer, 5... Ball part of washer, 6... Emitter of detector, 7... Receiver of detector, 8... ... Transparent window of the detector, 9... Case of the detector, 16... Recess.

Claims (1)

[Scope of utility model registration request] It is formed approximately in the shape of a water washer, a base part, and an arm part that extends forward continuously from the base part and has a water spout on the lower surface of its front end, and the base part is attached to the counter surface of the water washer. A water spout is provided with a water spout whose spout faces the bowl of the water washer, a light emitter, and a light receiver. a diffuse reflection photoelectric detector that generates a sensing signal;
The photoelectric detector includes an electric control unit that generates an output based on the sensing signal, and an electromagnetic valve that opens upon receiving the output and supplies water to the water discharging device, and the photoelectric detector includes a synthetic resin case having a transparent window on one side. A light emitter and a light receiver are housed inside facing a transparent window portion, and the photoelectric detector is placed in a recess provided in the front surface of the base portion of the water discharging device, and the transparent window portion is substantially flush with the front surface of the base portion. A water washing device characterized in that it is installed in such a way that the