JP2652120B2 - Underwater lighting fixture safety device in whirlpool - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a safety device for an underwater lighting device of a jet bath for personal use such as for home use or hotel guest room use.

[0002]

2. Description of the Related Art Conventionally, underwater lighting provided in a pool, a fountain, or the like is well known. However, since underwater lighting is manufactured on the assumption that it is installed in water, if it is lit without water, the surface of the surface is not illuminated. The temperature of the glass becomes extremely high, and if it is installed in a pool, direct contact with it can cause burns and other dangers.

[0003] However, the pool is a fitness center,
It is installed in sports centers, other public facilities, etc., and since the manager is always present and monitors the state of the pool, it is difficult to imagine a case where it lights up without water, so the power supply of the lighting equipment is The on / off switch is not provided with an interlock mechanism for safety.

[0004] On the other hand, in recent years, whirlpools have become widespread, and cases of personal use such as for home use or hotel guest rooms have been increasing. Such whirlpools are often provided with underwater lighting. There is no safety interlock mechanism in the on / off switch of the power supply of the lighting equipment.

[0005]

In a private whirlpool, since there is no manager like a pool, the underwater lighting device may be erroneously turned on without water in the bathtub. Danger of burns. Further, since the underwater lighting device is manufactured on the assumption that it is used underwater, if it is turned on without water, cooling with water is not performed, which is not a favorable condition for the lighting device.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned disadvantages of the prior art, to surely prevent lighting of an underwater lighting device without water in a private whirlpool, and to ensure user safety. An object of the present invention is to provide a safety device for an underwater lighting device in a whirlpool that can ensure a proper use of the underwater lighting device.

[0007]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a whirlpool in which a bathtub is provided with an underwater lighting device, a water level sensor for detecting a water level in the bathtub, and switching for turning on and off the underwater lighting device. The gist of the invention is that an interlock circuit for supplying electricity to the underwater lighting device is connected to the circuit only when the water level is equal to or higher than the installation position of the underwater lighting device based on the output from the water level sensor.

[0008]

According to the present invention, if the water level in the bathtub is equal to or higher than the installation position of the underwater lighting device, the interlock is released by the output from the water level sensor. Lights up. On the other hand, when the water level is equal to or lower than the installation position of the underwater lighting device, the interlock is not released, so that the lighting device does not light even when the switch is turned on.
Also, when the water level falls below the installation of the lighting fixture, the water is automatically interlocked and turned off automatically. Therefore, the underwater lighting device always lights up in the state of being underwater.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a control block diagram showing an embodiment of a safety device for an underwater lighting device in a whirlpool of the present invention, FIG. 2 is a piping diagram of the same, and FIG. 3 is a vertical front view of a part of the whirlpool. 2 and 3, reference numeral 1 denotes a bathtub, and an underwater lighting device 2 is installed on a side surface of the bathtub 1.

The underwater illuminator 2 is dug into the bath tub 1 and stored therein so as to prevent the illuminating lamp 3 from protruding into the bath tub 1 and causing the edge portion to hit the body. Position. Further, a cover 4 made of acrylic resin or the like is attached in the bathtub 1 for glare cut protection of the surface of the illumination lamp 3.

A jet nozzle 5 is opened on the inner surface of the bathtub 1 and a discharge port 6 is opened at the bottom. The jet nozzle 5 and the discharge port 6 are connected by a circulation pipe 7. 8 is provided. Further, an air feed pipe 9 is connected to the jet nozzle 5.

A drain trap connected to the bottom of the bathtub 1
A drain pipe 11 is opened at 10 and a drain valve 12a is provided in the middle of the drain pipe 11.
And a motor valve 12 that controls the opening and closing of the drain valve
Connect to 12a. Then, a drain pipe 13 is set up in the drain pipe 11 at a position upstream of the position where the drain valve 12a is provided, and a water level sensor 14 is provided at the tip of the drain pipe 13. The water level sensor 14 detects whether the water level in the bathtub 1 is above or below the position where the underwater lighting fixture 2 is installed, and is composed of a water pressure gauge or an electrode switch.

In the drawing, reference numeral 15 denotes a mixing faucet, which is a water supply pipe 1.
6. Connect to hot water supply pipe 17. Also, 18 is a switch for switching between hot water supply and drainage, 19 is an on switch for the light 3, 20 is an off switch for the light 3, 25 is a bubble switch, 21 is a water leak sensor attached to the pump 8, and 22 is a discharge of the pump 8. On the side, a pressure sensor attached to the circulation pipe 7 is shown, and the changeover switch 18, the ON switch 19, and the OFF switch 20 are disposed in a switch box 24 embedded in a wall or the like in a bathroom.

As described above, as shown in the control block diagram of FIG. 1, a control device 23 using a well-known microcomputer or the like is installed outside the bathroom, and the input terminal side of the control device 23 switches between hot water supply and drainage. The switch 18, the ON switch 19, the OFF switch 20 of the lamp 3, and the foam switch 25 are connected, and the pressure sensor 22, the water level sensor 14, and the water leak sensor 21 are connected to the input side of the control device 23. Then, the detection signals from these sensors are introduced into the control device 23, and the control device 23
A drive circuit of the pump 8, a switching circuit of the illuminating light 3 composed of the relay 3a and its contact 3b, and a drive circuit of the motor valve 12 for drainage control are connected to the output side of the pump 8; Control signals are introduced.

An interlock circuit 26 for controlling lighting of the illumination lamp 3 is connected to the primary side of the switching circuit of the illumination lamp 3. The interlock circuit 26 includes a relay 26a that is energized by an output from the water level sensor 14 and a contact 26 thereof.
b.

Next, the operation will be described. In order to supply hot water into the bathtub 1, when the changeover switch 18 is turned on to the hot water supply side, the water is output to the motor valve 12, the drain valve 12a is closed, and the water supply pipe is closed.
Water and hot water from the hot water supply pipe 16 and 16 are mixed and discharged to the bathtub 1. When the desired amount of hot water has fallen into the bathtub 1, the hot water supply is stopped, the foam switch 25 is turned on, and the pump 8 is driven. Thereby, the air taken in from the air feed pipe 9 and the hot water pumped through the circulation pipe 7 by the pump 8 are vigorously discharged from the jet nozzle 5.

To illuminate the inside of the bathtub 1, if the ON switch 19 of the lamp 3 is pressed, the relay 3a is energized and the contact 3b is closed. At this time, if the water level in the bathtub 1 is higher than the position of the lamp 3, the relay 26a is energized by the output from the water level sensor 14 and the contact 26b is closed, so that the lamp 3 is energized and Light.

On the other hand, when the water level is lower than the position of the lamp 3, the relay 26a is not energized and the contact 26b is not closed. Is not energized and does not light. Therefore, the illuminating lamp 3 does not light up when exposed from the water.

Also, when the water level is turned on above the position of the lighting lamp 3 and then the water level falls below the position of the lighting lamp 3 due to erroneous drainage or the like, the lighting lamp 3 is also turned off. At the time when it is revealed from the water, the output of the water level sensor 14
Since the power supply to a is cut off, the contact 26b is opened and immediately turned off.

[0020]

As described above, the safety device of the underwater lighting device in the whirlpool of the present invention reliably prevents the underwater lighting device from being turned on without water in a private tub. This protects the user from dangers such as burns, and secures the safety of the user, and also ensures the correct use of the underwater lighting fixture manufactured on the assumption that it is used underwater.

[Brief description of the drawings]

FIG. 1 is a control block diagram showing an embodiment of a safety device for an underwater lighting device in a whirlpool of the present invention.

FIG. 2 is a piping diagram showing an embodiment of a safety device for an underwater lighting device in a whirlpool of the present invention.

FIG. 3 is a vertical sectional front view of a part of a jet bath in which a safety device for an underwater lighting device in the jet bath of the present invention is implemented.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Bathtub 2 ... Underwater lighting equipment 3 ... Lighting 3a ... Relay 3b ... Contact 4 ... Cover 5 ... Jet nozzle 6 ... Discharge port 7 ... Circulation pipe 8 ... Pump 9 ... Air feed pipe 10 ... Drain trap 11 ... Drain pipe 12 ... Motor valve 12a ... Drain valve 13 ... Drainage pipe 14 ... Water level sensor 15 ... Mixed faucet 16 ... Water supply pipe 17 ... Hot water supply pipe 18 ... Changeover switch 19 ... Lighting light on switch 20 ... Lighting light off switch 21 ... Leakage sensor 22 ... Pressure sensor 23 ... Control device 24 ... Switch box 25 ... Foam switch 26 ... Interlock circuit 26a ... Relay 26b ... Contact

Claims (1)

(57) [Claims] 1. A jet bath in which an underwater lighting device is provided in a bathtub, a water level sensor for detecting a water level in the bathtub is provided, and a switching circuit for turning on and off the underwater lighting device is provided with an underwater lighting device based on an output from the water level sensor. An underwater lighting fixture safety device for a whirlpool, wherein an interlock circuit for energizing the underwater lighting fixture is connected only when the lighting fixture is at or above the installation position.