JPH0576578A - Cleaning device for bath tub hot water - Google Patents

Abstract

PURPOSE:To prevent the back flow of hot water into an ozone generator during the shutdown of the cleaning device for bath tub hot water having the ozone generator of a high-pressure discharge type. CONSTITUTION:A check valve 26 which is actuated in the direction of opening a valve by the pressure of ozonized air is arranged to face an ozonized air passage from a discharge panel 17 for forming the ozonized air of the ozone generator 10 up to an ozone incorporating device for incorporating the ozonized air into the hot water, more preferably an ozonized air discharge port 20 of the ozone generator 10. Then, the hot water flowing back in an ozonized air supplying pipe 13 stops at the check valve 26 and does not wet the discharge panel 17 with the hot water. The life of the ozonizer is thus prolonged and the generation of current leakage is obviated.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bath device, and more particularly to a bath device having a cleaning device provided with an ozone generator for ozone sterilization as a means for cleaning hot water.

[0002]

2. Description of the Related Art Recently, as shown in FIG. 4, a bath apparatus equipped with a cleaning apparatus 3 which keeps the hot water 2 in the bathtub 1 constantly clean and at an appropriate temperature and can enjoy a comfortable bath for 24 hours has been developed and widely spread. I started to do it.

The cleaning device 3 is provided with a cleaning tank 4 filled with a filter 5, activated stones 6, activated carbon 7 and the like and a heater 9 for keeping heat, and a bathtub 1 pumped from a hot water pipe 14 by a circulation pump 8. First, the hot water 2 inside is cleaned by filtering dirt such as dust and hair floating in the cleaning tank 4, activated stone treatment, or adsorbing organic matter, and then a heater for heat retention. It is kept at an appropriate temperature in 9 and jetted again as a jet flow into the bathtub 1 from the jet nozzle 16 attached to the tip of the spout tube 15.

Further, in the cleaning device 3, not only is the hot water cleaned to remove dirt and then maintained at an appropriate temperature, but also sterilization is performed. A high-pressure discharge type ozonizer for ozonization is provided as a small and simple ozone generator 10.

The ozone generator 10 is connected to an intake pipe 11 via an electromagnetic valve 12, and ozone is supplied to a jet nozzle 16 as an ozone mixing device for mixing ozonized air into hot water by suction force by a bench lily action. In the state where the air supply pipe 13 is connected and the solenoid valve 12 is open, the air sucked from the intake pipe 11 is ozonized by the ozone generator 10, and this ozonized air is the ozonized air supply pipe. After that, the water is jetted from the jet nozzle 16 into the bathtub 1 and mixed in the hot water 2 to be sterilized by ozone.

[0006]

However, when the conventional high-pressure discharge type ozonizer is used as an ozone generator, there are problems of the life of the ozonizer and an electric leakage accident.

That is, when the cleaning device 3 is in operation, the jet nozzle 16 as an ozone mixing device serves as a negative pressure portion, and the ozonized air generated by the ozone generator 10 passes through the ozone supply pipe 13. There is no problem in that the gas is constantly sucked into the jet nozzle 16, but when the operation of the cleaning device 3 is stopped, the flow of hot water stops and the negative pressure of the jet nozzle 16 is released. The hot water 2 flows backward toward the ozone generator 10.

When the ozonizer as the ozone generator 10 gets wet due to the backflow of hot water, the ozonizer is damaged and its ability to generate ozone is reduced or does not occur at all. Therefore, there is even a risk of electric shock to the bather due to the electric leakage.

In the above-mentioned example, since ozone is mixed in the bath 1, the jet nozzle 16 is also used as an ozone mixing device, and the ozone supply pipe 13 from the ozone generator 10 is connected to the jet nozzle 16, but Since ozone is mixed in the circulation path in the middle of the circulation path, a bench lily type ozone mixing device is provided in the middle of the circulation path of hot water, and the same is true when the ozone supply pipe 13 from the ozone generator 10 is connected to this ozone mixing apparatus. The problem arises.

The present invention solves the above-mentioned drawbacks of the prior art, and provides a bath water purifying device capable of preventing the ozone generator from being damaged by the backflow of hot water when the device is stopped. The purpose is to

[0011]

Means for Solving the Problems That is, the present invention is a bathtub hot water in which hot water in a bathtub pumped up by a hot water pipe by a circulation pump is cleaned by various cleaning means and then jetted again into the bathtub from the hot water pipe. In the purifying device, the ozone generating device for sterilizing by mixing ozonized air into hot water is provided as the cleaning means. From this ozone generating device to the ozone mixing device for mixing ozonized air into bath water A check valve that operates in the opening direction by the pressure of ozonized air is provided in the ozonized air ventilation passage, and preferably the check valve is provided in the ozone generator facing the ozonized air discharge port. This is a bath water purifying device.

[0012]

The present invention is constructed as described above, and operates in the direction of opening in the ozonized air ventilation path from the ozone generator to the ozone mixing device for mixing ozone into the hot water by the pressure of the ozonized air. Since the check valve is provided, when the device is operated and the ozonized air is discharged from the ozone generator, the check is opened by the pressure of this air and there is no need to send the ozonized air to the ozone mixing device. There is no problem.

On the other hand, when the operation of the device is stopped and the discharge of the ozonized air from the ozone generator is stopped, the check valve is closed because there is no pressure in the opening direction, and hot water flows backward. However, since the pressure received is in the closing direction, the valve is kept closed and the ozone generator is not wetted by the backflowing water.

Further, the check valve may be provided at any position in the ventilation path for the ozonized air from the ozone generator to the ozone mixing device, but in particular, it faces the exhaust port of the ozonized air of the ozone generator. If it is provided, since the valve mechanism can be formed integrally with the ozone generator, the device is compact and inexpensive.

[0015]

Embodiments of the present invention will be described below with reference to the drawings.

The embodiment of the present invention is as shown in FIG.
This is an example in which a check valve is provided at the outlet of ionized air of a high-pressure discharge type ozonizer as the ozone generator 10.

The high-pressure discharge type ozonizer has a discharge panel 17 in which a pair of discharge electrodes are embedded in a dielectric material such as ceramics, and has an air inlet 19 for ozone-forming and an air outlet 20 for ozone-forming air on the side surface. It is housed in a plastic case 18 that is placed opposite to each other, and the top opening is covered with a lid 2.
It was formed by closing at 2.

A claw 21 projects from the bottom surface of the case 18, and a pedestal 23 projects from the back surface of the lid 22, so that the discharge panel 17 is housed in the case 18 when the claw 2 is held.
It is fixed by being pressed by a pedestal 23 while being supported by 1.

Connection pipes 24 and 25 for connecting the intake pipe 11 and the ozonized air supply pipe 13 are extended from the air intake port 19 and the ozonized air discharge port 20 of the case 18.

26 is a check valve, and the check valve 26 is
The exhaust side end surface of the hollow through cylinder 28 is formed of a valve seat 27 closed by a ventilation plate 29 having a plurality of ventilation holes 30 and an elastic material such as rubber that easily bends under the pressure of ozonized air. The elastic membrane valve 31 comprises an elastic membrane valve 31.
The mounting feet are fitted into the mounting holes and closely attached to the surface of the ventilation plate 29 of the valve seat 27, and the ventilation holes 30 are closed from the side opposite to the ventilation direction of the ozonized air.

Check valve 26 constructed as described above
Faces the ozonized air discharge port 20 with the ventilation plate 29 having the elastic membrane valve 31 in close contact with the surface thereof, and the gap between the ventilation cylinder 29 and the communicating cylinder 28 is set to O.
It is mounted on the inner wall of the case 18 of the ozonizer while sealing with a ring 32.

Therefore, when the apparatus is operating, the air sucked from the intake pipe 11 into the ozonizer is ozonized by the discharge panel 17 to become ozonized air as shown by the arrow in FIG. Ozonized air enters the valve seat 27 of the check valve 26 and presses the elastic membrane valve 31 that is in close contact with the surface through the ventilation hole 30 of the ventilation plate 29 toward the direction in which the valve in the ventilation direction of the ozonized air opens. To do.

As a result, a gap is formed between the ventilating plate 29 of the valve seat 27 and the elastic membrane valve 31 and the check valve 26 is opened, and the ozonized air causes the check valve 26 to pass through the vent hole 30. It goes out and is discharged to the ozone supply pipe 13 through the ozonized air discharge port 20 of the case 18.

When the device is in an operating state and hot water is circulating, the intake from the intake pipe 11 is continued due to the intake action based on the bench lily action of the ozone mixing device. Therefore, as described above, the reverse operation provided in the ozonizer is performed. The stop valve 26 continues to open due to the pressing action of the ozonized air, whereby the ozonized air is continuously supplied to the ozone mixing device via the ozone supply pipe 13, and the ozone sterilization of the bath water is continued.

Next, the state when the apparatus is stopped will be described with reference to FIG.

When the circulation of the hot water is stopped by stopping the device, the intake action due to the ventilating action of the ozone mixing device is lost, so the intake from the intake pipe 11 is stopped and the ozone supply pipe 13 goes from the ozone supply pipe 13 to the ozonizer as shown by the arrow. The hot water flows backward and enters the ozonizer through the ozonized air outlet 20.

When the backflowed hot water reaches the elastic membrane valve 31 of the check valve 26, the elastic membrane valve 31 is pressed in the direction to close the valve that is in close contact with the ventilation plate 29 of the valve seat 27, and the ventilation hole 28 is made of the elastic membrane. The valve 31 keeps the valve closed and closed.

As a result, the backflow of hot water into the check valve 26 is stopped, and the gap between the through cylinder 28 of the check valve 26 and the case 18 is completely sealed by the O-ring 30. The hot water never flows into the discharge panel 17.

Therefore, the discharge panel 17 is wetted by the backflowing hot water, and the effect of ozonization of air is lowered,
There is no danger of electrical leakage.

In the above embodiment, the check valve 26 is mounted in the case 18 of the ozonizer in order to simplify the mounting structure and reduce the cost. However, a check valve having the same function is used as an ozone supply pipe. Needless to say, the same effect can be obtained even if the device is attached to any position of the ventilation passage for the liquefied air.

[0030]

EFFECTS OF THE INVENTION The present invention has the above-described structure and operation, and when a check valve having a simple structure and a low cost is provided in the ventilation passage of ozonized air, a back flow occurs when the apparatus is stopped. We provide a bath water purifier with a safe and long-life ozone generator that easily prevents the risk of leakage due to the shortening of the life of the ozone generator due to the inflow of hot water into the ozone generator. To do.

[Brief description of drawings]

FIG. 1 is an ozone generator,

[Fig. 2] Aeration state of ozonized air,

[Fig. 3] Backflow of hot water,

FIG. 4 is a cleaning device.

[Explanation of symbols]

1. Bathtub 2. Hot water 3. Cleaning device 4. Cleaning tank 8. Circulation pump 10. Ozone generator 11. Intake pipe 13. Ozonized air supply pipe 14. Hot water pipe 15. Fountain tube 16. Jet nozzle (Ozone mixing device) 17. Discharge panel 20. Ozonized air outlet 26. Check valve 27. Valve seat 28. Vent hole 30. Elastic membrane valve

Claims (2)

[Claims] 1. A bathtub hot water purifying device in which hot water in a bathtub drawn up by a hot water pipe by a circulation pump is cleaned by various cleaning means and then jetted again into the bathtub from the hot water pipe. As a means, an ozone generator is installed to mix and sterilize ozonized air in hot water.Ozonization is performed in the ozonized air ventilation path from this ozone generator to the ozone mixing device that mixes ozonized air into bath water. A bath water cleaning device, which is equipped with a check valve that operates to open in response to air pressure. 2. A check valve is provided in the ozone generator facing the ozonized air discharge port.
The bathtub cleaning device described.