JPH0673771A - Feed water controller - Google Patents

Abstract

PURPOSE:To adjust the detecting distance of a feed water controller through remote control. CONSTITUTION:A sensor 28 for reception for receiving a detecting-distance adjusting signal is installed adjacent to a light-emitting element 24 and a photo- detector 26 for a feed water controller 14. A detecting-distance setting section 40 sets a detecting distance by the reception signal of the sensor 28, and the signal is transmitted over a detecting section 30. Consequently, the human-body detecting distance of the feed water controller 14 can be adjusted. Accordingly, the detecting distance can be controlled without removing a cover 16. The adjusting operation can be conducted easily and quickly. The adjusting operation can be performed by one operator.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water supply control device which detects a human body and automatically performs water discharge or water stoppage, and particularly water supply suitable for being incorporated in an automatic cleaning system for urinals and urinals. Regarding the control device.

[0002]

2. Description of the Related Art A water supply control device of this type has a water supply valve and a controller for opening and closing the water supply valve. Further, there is also one having an adjusting means for adjusting the detection distance of the human body detecting sensor.

Conventionally, when adjusting the detection distance,
The cover case of the casing of the water supply control device is opened, and the dial and adjusting screw inside are turned.

[0004]

In the conventional water supply controller, the cover case has to be opened every time the detection distance is adjusted, which is troublesome. In particular, the water supply control device for the toilet bowl is usually provided so as to be embedded in the wall surface of the toilet room or the toilet bowl, and opening and closing the cover case requires a considerable amount of time and effort. As a measure against this,
It is conceivable to provide an adjusting dial or the like on the outer surface of the water supply control device, but the water supply control device will soon malfunction due to mischief.

Further, when adjusting the detection distance in the conventional water supply control device, when the detection range is longer than the arm length of the adjustment worker, two workers, a worker to be detected and an adjustment worker, are required. Next, it takes manpower.

Further, in the conventional water supply control device,
The infrared type sensor is usually attached to the main body side behind the cover case. The cover case is provided with infrared transmitting glass, which absorbs infrared rays to some extent. Therefore, when the cover case is removed and adjustment is performed, and then the cover case is attached again, there is also a problem that the detection distance adjusted with care changes by the absorbance of the glass of the cover case.

[0007]

The present invention has a water supply valve, a human body detection sensor, and a controller for opening and closing the water supply valve based on a detection signal of the human body detection sensor. Relates to a water supply control device equipped with means for adjusting the detection distance of the human body detection sensor.

The water supply control device according to the first aspect of the present invention includes a transmitter for providing a detection distance adjustment signal to the human body detection sensor, and means for transmitting the detection distance adjustment signal received by the human body detection sensor to the adjustment means. Is provided.

According to another aspect of the present invention, there is provided a water supply control device, wherein a sensor for receiving a detection distance adjustment signal is provided on an outer surface of the water supply control device, a transmitter for giving the detection distance adjustment signal to the reception sensor, Means for transmitting the detection distance adjustment signal received by the reception sensor to the adjustment means.

[0010]

In the water supply control device of the present invention, the detection distance adjusting signal is given to the main body side of the water supply control device by the transmitter.

Therefore, the detection distance can be adjusted by remote control without removing the cover case of the water supply control device.

According to the present invention, the human body detection sensor also functions as a receiver for the detection distance adjustment signal.
In the second aspect, the receiver is provided separately from the human body detection sensor.

[0013]

Embodiments will be described below with reference to the drawings. FIG. 1 is a block diagram of a water supply control device according to an embodiment of the present invention, FIG. 2 is a block diagram of a water supply control device according to another embodiment, and FIG. 3 shows a structure for mounting the water supply control device on a wall surface. A perspective view and FIG. 4 are exploded perspective views of the same.

In FIGS. 3 and 4, a plurality of tiles 12 are attached to a wall surface 10, and a water supply controller 14 is attached to a portion of one of the tiles 12. That is, the wall surface 10 is provided with a recess having the size of one tile 12, and the water supply control device 14 is inserted into the recess. A cover 16 having the same size as the tile 12 is detachably attached to the front surface of the water supply control device 14. The cover 16 is provided with an opening 20 having a glass 18 capable of transmitting infrared rays.

As shown in FIG. 1, this water supply control device 14
Is a controller 22, a light emitting element 24 that emits light in response to a signal from the controller 22, a light receiving element 26 that receives reflected light obtained by reflecting the light from the light emitting element 24, and a detection distance adjustment signal. And a receiving sensor 28 for receiving.
The controller 22 includes a detection unit 30 for detecting a human body based on a signal from the light receiving element 26, and a power control unit 34 for outputting electric power for controlling the solenoid 32 based on the signal from the detection unit 30. Is equipped with. The solenoid 3
2 is a solenoid of a solenoid valve 38 provided in the water supply pipe 36. In the water supply control device 14, the receiving sensor 2 is provided.
A detection distance setting unit 40 that adjusts the detection distance of the detection unit 30 based on the signal from 8 is provided. 42 is a light emitting element drive circuit.

The light emitting element 24, the light receiving element 26, and the receiving sensor 28 are provided on the front surface of the water supply controller 14 as shown in FIG.
4, 26 and the sensor 28 are located behind the infrared transparent glass 18.

In the water supply control device 14 thus constructed, the light from the light emitting element 24 strikes the human body and is received by the light receiving element 26, and the solenoid 32 is received based on the received light signal.
Is opened and closed. Further, as shown in FIG. 3, by operating the adjusting buttons 44 and 46 of the transmitter 42, a signal for adjusting the detection distance is output to the receiving sensor 28. This signal is input from the sensor 28 to the detection distance setting unit 40, and a signal for adjusting the detection distance is output to the detection unit 30. In this embodiment, when the button 44 is pressed, the detection distance becomes longer, and when the button 46 is pressed, the detection distance becomes shorter.

Thus, according to this embodiment, the oscillator 4
The water supply control device 1 by simply operating the buttons 44 and 46 of the 2
The detection distance of 4 can be adjusted. Therefore, it is not necessary to remove the cover 16 for adjusting the detection distance, and the adjustment work can be performed extremely easily and quickly.

In order to adjust the detection distance with the cover 16 still attached, the light emitting element 24 and the light receiving element 26 are always attached with the infrared transmitting glass 18. Therefore, it is possible to completely eliminate the influence of the absorbance of the infrared transmitting glass, which is caused when the cover 16 is removed.

In the embodiment shown in FIG. 1, the receiving sensor 2 is used.
However, in the present invention, as shown in FIG. 2, the light receiving element 26 may be used also as a receiving sensor. In this case, the controller 22 is provided with a signal discriminating circuit 48 that discriminates the signal from the light receiving element 26 and discriminates between the light receiving element and the distance adjustment signal. The distance adjustment signal identified by the circuit 48 is input to the detection distance setting unit 40. Further, the signal for detecting the human body is directly input to the detection unit 30. The other structure of FIG. 2 is the same as that of FIG.

In the above embodiment, the human body is detected by light, but the present invention is also applicable to a water supply control device for detecting a human body by ultrasonic waves.

[0022]

As described above, according to the water supply control device of the first and second aspects of the present invention, it is possible to give the detection distance adjusting signal to the water supply control device by the transmitter, and it is extremely easy to adjust the detection distance. It can be done quickly. Moreover, since the detection distance can be adjusted from a position away from the main body of the water supply control device, the detection distance can be adjusted by one worker.

[Brief description of drawings]

FIG. 1 is a block diagram of a water supply control device according to an embodiment.

FIG. 2 is a block diagram of another embodiment device.

FIG. 3 is a perspective view showing a mounting structure of the water supply control device.

FIG. 4 is an exploded perspective view showing a configuration of a water supply control device.

[Explanation of symbols]

 10 Walls 12 Tiles 14 Water Supply Control Device 16 Cover 22 Controller 24 Light Emitting Element 26 Light Receiving Element 28 Receiving Sensor 32 Solenoid 40 Detecting Distance Setting Section 42 Transmitter

Claims (2)

[Claims] 1. A water supply valve, a human body detection sensor, and a controller for opening and closing the water supply valve based on a detection signal of the human body detection sensor, the controller having a detection distance of the human body detection sensor. In the water supply control device having the adjusting means, a transmitter for giving a detection distance adjusting signal to the human body detecting sensor, and means for transmitting the detecting distance adjusting signal received by the human body detecting sensor to the adjusting means, A water supply controller provided with. 2. A water supply valve, a human body detection sensor, and a controller that opens and closes the water supply valve based on a detection signal of the human body detection sensor, the controller including a detection distance of the human body detection sensor. In the water supply control device, the sensor for receiving the detection distance adjustment signal provided on the outer surface of the water supply control device, and the transmitter for providing the detection distance adjustment signal to the reception sensor. A means for transmitting a detection distance adjustment signal received by the receiving sensor to the adjusting means, the water supply control device.