JPH06220901A - Sensor device - Google Patents

Abstract

PURPOSE:To enhance the quietness in a toilet room and enhance the waterproofness by providing a packing to a frame and a gap of a sensor body so that it is made to adhere to both circumference of the frame and sensor body. CONSTITUTION:In a sensor body 26, a packing 40 is closely fitted on the peripheral surface of the sensor body 26, and it is fitted and inserted to the inside of a frame 22 while holding its state. After that, the sensor body 26 is fixed to the frame 22 with four screws 28, and the packing 40 is made to adhere to both sensor body 26 and frame 22 and is installed in a compression state. After that, the packing 40 adopts an elastic material having seal efficiency and durability. In a sensor device 20 constituted in such a way, by providing the packing 40, the leakage of water-flow sounds generated inside a counter 6 or water-hammer sounds is prevented and, at the same time, the incursion of water into the sensor device 20 is prevented. According to the constitution, the quietness in a toilet room is enhanced, and durability of the sensor body 26 can be improved.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sensor device, and more particularly to a sensor device used for an automatic cleaning toilet or the like. More specifically, the present invention relates to a sensor device suitable for use in an automatic urinal cleaning system of a foot-mounted type.

[0002]

2. Description of the Related Art When the urinal 2 is installed in a toilet room of a reinforced concrete structure such as a building or a condominium, it is usually installed in front of a counter 6 as shown in FIG. The counter 6 has a space portion inside for accommodating the water supply pipe 8, the ventilation pipe 10, and the drain pipe 12. The top plate 14 is installed on the upper surface of the counter 6, and the front surface is constituted by the front panel 16. The urinal 2 is fixed to the surface of the front panel 16 with bolts 18 or the like.

The human body detecting sensor device 20 of the automatic urinal cleaning system detects the presence or absence of a human body using the urinal 2 by means of the light projecting element 20a and the light receiving element 20b, and instructs the electromagnetic valve for cleaning water control to open and close. It is a sensor for sending out, and is installed in the vicinity of the urinal 2. In this conventional example, the sensor device 20 is installed on the lower side (foot side) of the urinal 2, but may be installed on the upper side of the urinal 2.

A sensor installation opening is cut out from the front panel 16, and the sensor device 20 is fitted and installed in the sensor installation opening.

As shown in FIG. 5, the frame-shaped frame 22 of the sensor device 20 is attached to the front panel 16 by bolts (not shown) which penetrate boss portions 24 arranged at four corners inside the frame 22. ing. A water supply pipe 8 provided with a water stop plug 24 is provided on the back side of the frame 22. The stopcock 24 is a stopper for stopping the water supply at the time of maintenance of the automatic urinal cleaning system, and is installed upstream of the solenoid valve. The sensor body 26 is a frame 2
It is installed in the frame 2 and is attached to the frame 2 by four screws 28.
It is fixed at 2.

A power supply connector 30 for supplying power to the sensor body 26 and a solenoid valve connector 32 for driving a solenoid valve for water supply of the urinal are connected to the corresponding connectors on the equipment side, and the sensor in the frame 22 is connected. It is stored in the space behind the main body 26. The surface plate 34 is attached to the sensor frame 2 by magnets 36 arranged above and below the sensor frame 2.
It is attached so as to cover the front side opening surface of 2. 34a
Is a transparent window.

[0007]

Human body sensing sensor device 2
No. 0 is installed in the opening of the front panel of the counter that houses the water supply pipe, the ventilation pipe, and the drain pipe, so the sound of the solenoid valve operating inside the counter and the water hammer noise accompanying the operation of the solenoid valve are generated. However, it leaked from the gap between the sensor body 26 and the frame 22 and was annoying. Further, particularly in the case of a foot-installed sensor device 20, there is a possibility that urine may be splashed during small use due to its low installation position and splashing of water during cleaning may cause the sensor device 20 to penetrate deep inside the sensor device 20. There was a problem of concern such as malfunction and deterioration of durability due to the water content.

[0008]

The sensor device of the present invention comprises:
A sensor device comprising a frame-shaped frame, a sensor body inserted and installed in the frame, and a surface plate covering an opening surface on the front side of the frame, which is closely fitted onto the sensor body. In addition, a packing that closely contacts the inner peripheral surface of the frame is provided.

[0009]

The sensor device of the present invention is provided with a packing that is closely fitted to the sensor main body and closely contacts the inner peripheral surface of the frame, so that the operation noise of the solenoid valve and the operation of the solenoid valve can be prevented. Water hammer noise is prevented from leaking out. In addition, the packing also prevents moisture from entering the inner part of the sensor device.

[0010]

Embodiments will be described below with reference to the drawings. FIG. 1 is an exploded perspective view showing a structure of a sensor device according to an embodiment of the present invention, FIG. 2 is a vertical sectional view of the sensor device, and FIG. 3 is a horizontal sectional view of the sensor device.

In FIG. 1, the sensor body 26 has a packing 40 closely fitted on the outer circumference of the sensor body 26, and is fitted and inserted in the frame 22 while maintaining that state. Then, the sensor body 26 is fixed to the frame 22 by four screws 28 as in the conventional case. As shown in FIGS. 2 and 3, the packing 40 is installed in a compressed state in close contact with both the sensor body 26 and the frame 22. The packing 40 is made of an elastic material having a sealing property and durability. In the present embodiment, the packing 40 is made of urethane foam, but it is also possible to use other materials.

The other construction of this embodiment is the same as that of the conventional example, and the same parts are designated by the same reference numerals and the description thereof will be omitted.

In the sensor device 20 of the present embodiment constructed as described above, the packing 40 is attached to prevent leakage of running water noise and water hammer noise generated inside the counter 6 and to prevent the sensor device from leaking. Water is prevented from entering the inner part of 20.

Although the above effects can be obtained by using a caulking material, when the packing 40 is used as described above, the sensor main body 26 can be easily attached and detached, so that the workability during maintenance is improved. Good as before.

Although the above embodiments relate to the sensor device installed on the foot side of the urinal, the present invention can be applied to the sensor devices installed at other places.

[0016]

As described above, in the sensor device of the present invention, by providing the packing between the sensor body and the frame, it is possible to shield the operation sound of the solenoid valve and the water hammer sound accompanying the operation of the solenoid valve. , The quietness of the toilet room is improved. Further, since it is possible to prevent water from entering the inner part of the sensor device, the operational reliability and durability of the sensor body are improved.

[Brief description of drawings]

FIG. 1 is an exploded perspective view illustrating a configuration of a sensor device according to an embodiment.

FIG. 2 is a vertical sectional view of a sensor device according to an embodiment.

FIG. 3 is a horizontal sectional view of the sensor device according to the embodiment.

FIG. 4 is a perspective view illustrating an installation structure of a urinal.

FIG. 5 is an exploded perspective view illustrating a configuration of a conventional sensor device.

[Explanation of symbols]

 2 Urinal 6 Counter 8 Water supply pipe 16 Front panel 20 Sensor device 22 Frame 24 Water stopcock 26 Sensor body 40 Packing

Claims (1)

[Claims] 1. A sensor device comprising a frame-shaped frame, a sensor body inserted and installed in the frame, and a surface plate covering an opening surface on the front side of the frame. A sensor device characterized in that a packing that is closely fitted to the frame and that is in close contact with the inner peripheral surface of the frame is provided.