JPH05300843A - Circulating-cleaning device for bathtub - Google Patents

Abstract

PURPOSE:To perform the cleaning of the bath water in a short period of time, and prevent a filter material from flowing out without using an air pump. CONSTITUTION:A water sucking/injecting part 23 is constituted of a water suction port 29, water injection port 30, water sucking pump 31, electrically operated valve 32 and ultraviolet sterilization lamp 33, all of which are connected by a connecting pipe 28. For a filter straining part 24, a filter straining device 35 in which a filter material 40a is contained, a water passage for cleaning filter material 37a and a water passage for filtering 38a are connected into a loop shape, and a drain 39 is also provided. An organism filtering part 25 is constituted of electrically operated 3-way valves 36c, 35d, an organism filtering device 41 in which a filter material 40b is contained, and an ejector 43 which are connected into a loop shape by the connecting pipe 28, water passage for cleaning filter material 37b and water passage for filtering 38b.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to filtration of hot water in a bathtub,
The present invention relates to a circulation purification device for a bath that can perform purification and cleaning of a filter medium.

[0002]

2. Description of the Related Art In recent years, a circulation purifying device for a bath has been developed which keeps hot water in the bath always clean.

Hereinafter, a conventional bathtub circulation purifying apparatus will be described with reference to FIG. A conventional circulation purification apparatus for a bathtub mainly includes a water suction port 1 and a fountain port 2 as main constituent elements, a suction / fountain section 3, a filter filtering section 5 having a filter filtering apparatus 4 as main constituent elements, and a biological filtering apparatus 6. It is composed of a biological filtration unit 7 which is a component, an air pump 8 and a control unit 9, which are a connecting pipe 10 and an air pipe 1.
They are connected by 1. The water suction / fountain part 3 includes a water suction port 1 for sucking hot and cold water in the bathtub 12, a water fountain port 2 for spouting water into the bathtub 12, a water absorption pump 13, an electric valve 14, an ultraviolet germicidal lamp 15 for sterilizing various bacteria in the water and an air pump 8. Ejector 16, two-way valve 17a, which mixes air sent from
And the electric three-way valve 18a as main constituent elements, and these are connected by the connecting pipe 10. The ultraviolet germicidal lamp 15 and the ejector 16 are connected via an electric three-way valve 18a. Also, the ultraviolet germicidal lamp 15 is used for the spout 2
The electric valve 14 and the ejector 16 are connected to the water suction pump 13 and the electric valve 14 via the two-way valve 17a. The filter filtering unit 5 is configured by connecting the filter filtering device 4, the electric three-way valves 18b, 18c, 18d, the circulation pump 19, and the two-way valves 17b, 17c as main components, and connecting them with the connecting pipe 10. .. The filter filtration device 4 includes a heater 20 and a water temperature detector 21 inside.
Is provided and a granular filter medium 22a is put therein. Opening portions are provided on the upper surface and the bottom surface of the filter filtration device 4, respectively, so that hot water can pass through. The circulation pump 19 is arranged between the electric valves 18c and 18d. The electric three-way valve 18b adjusts the water passage of the hot water flowing from the suction fountain part 3, and the electric three-way valve 18c adjusts the water passage of the hot water flowing from the electric three-way valve 18b or the hot water flowing through the filter filtration device 4. , Electric three-way valve 18
Reference numeral d is for adjusting the water passage of hot and cold water that has passed through the circulation pump 19. The biological filter 7 is configured by connecting the biological filter 6 and the two-way valve 17d with a connecting pipe 10. The biological filter 6 has a filter medium 22b and microorganisms inside. Further, an opening portion is provided on each of the upper surface and the bottom surface of the biological filtration device 6 so that hot water can pass therethrough. The air pump 8 is connected via an air pipe 11 to the ejector 16 and the connecting pipe 10 below the filter filtration device 4. The control unit 9 is electrically connected to the entire apparatus and can control the operation of the entire apparatus.

The operation of the conventional circulation purifying apparatus for a bathtub having the above structure will be described below. When the motor-operated valve 14 is opened and the water suction pump 13 is activated, hot water in the bathtub is sucked in through the water suction port 1. Then, the water suction pump 13 is stopped, the electric valve 14 is closed, and the electric three-way valves 18a, 18
After opening b, 18c and 18d to A side, circulating pump 19
To start. At this time, the hot and cold water enters the filter filtration device 4 from above the filter filtration device 4 via the electric three-way valve 18b as shown by the arrow A. The hot and cold water that has entered the filter device 4 is filtered by the filter material 2 in the filter device 4.
After being filtered and purified by 2a, it passes through the filter filtration device 4 and enters the biological filtration device 6 through the electric three-way valve 18c, the circulation pump 19 and the electric three-way valve 18d. The hot and cold water that has entered the biological filter 6 is purified by the filter medium 22b and microorganisms, then passes through the biological filter 6, and reaches the ultraviolet germicidal lamp 15 via the electric three-way valve 18a. After the germs in the hot water are sterilized by the ultraviolet sterilization lamp 15, the water is ejected into the bathtub 12 through the connecting pipe 10 and the fountain port 2.

The circulation filtration in the bathtub 12 is performed in this manner. As the filtration is performed, the filtration media 22a and 22b are gradually soiled, and the hot and cold water flows in a certain direction, whereby the filtration media 2 is obtained.
Since 2a and 22b are close together and are easy to harden,
The filter media 22a and 22b must be washed regularly. When cleaning the filter material 22a in the filter filtration device 4, first, the hot and cold water in the filter filtration device 4 is removed by the two-way valve 17b,
Water is drained via 17c and adjusted to a small amount, the two-way valve 17 is closed, the air pump 8 is actuated, air is sent to the filter filtration device 4 to foam the filter medium 22a, and the filter medium 22b is washed. After that, the electric three-way valves 18b, 18c, 18
When d is opened to the B side and the circulation pump 19 is operated, the bathtub 1
The hot and cold water in 2 enters the filter filtration device 4 via the water inlet 1, the electric three-way valves 18b and 18c, the circulation pump 19, and the electric three-way valve 18d, and the filter medium 22a is filtered. Filter medium 2
After the filtration of 2a is performed, it passes through the filter filtration device 4 and the two-way valve 17b and is drained. When cleaning the filter material 22b in the biological filtration device 6, the hot water in the biological filtration device 6 is drained via the two-way valve 17d and adjusted to a small amount, the two-way valve 17b is closed, and the electric three-way valve 18a is moved to the B side. Open, air pump 8
Is operated to feed air into the filter filtration device 4 to foam the filter medium 22b to wash the filter medium 22b.

Thereafter, the electric valve 14 is closed and the two-way valve 17b
Open the electric three-way valve 18a on the A side, and the electric three-way valve 18b,
When 18c and 18d are opened to the B side and the water suction pump 13 is operated, the hot and cold water in the bathtub 12 is absorbed by the water suction port 1, the water suction pump 13,
The filter medium 22b is filtered by entering the biological filtration device 6 via the two-way valve 17b, the ejector 16, and the electric three-way valve 18a. After the filtration of the filter material 22b, it is passed through the biological filtration device 6 and the two-way valve 17d and drained.

[0007]

However, since the conventional circulation purification apparatus for bathtub cannot simultaneously perform the fountain from the fountain 2 and the circulation filtration in the apparatus, it takes a long time to purify the hot water. Further, by using the filter filtration device 4 and the biological filtration device 6 for a long time, the filter media 22 in both filtration devices 22
There was a risk that a and 22b would stick to each other. In order to prevent this, the filter media 22a and 22b were cleaned by using the air pump 8 that emits a loud noise, but there was a drawback that the filter media 22a and 22b flow out from both filter devices at that time.

The present invention is intended to solve the above-mentioned drawbacks, in which hot water can be purified in a short time, and the filter medium is washed without using an air pump to prevent the filter medium from flowing out from the filter device. An object of the present invention is to provide a circulation purification device for a bathtub.

[0009]

In order to solve the above-mentioned problems, a circulation purifying apparatus for a bath according to the present invention comprises a suction port, a fountain port, a filtering device, a water absorption pump, a filtering water channel, a filter medium cleaning water channel and a water channel switching device. Are connected by a connecting pipe, and the control unit can control the entire apparatus.

[0010]

With the above-described structure, the hot and cold water passages are different between the case of circulating filtration of hot water and the case of washing of the filter medium. Further, the filter medium is washed without using the air pump.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the present invention will be described below with reference to FIGS.
Will be described with reference to.

As shown in FIG. 1, the bathtub circulation filter is
It mainly consists of a suction water fountain part 23, a filter part 24, a biological part filter 25, and a control part 26, which are connected by a circulation pump 27 and a connecting pipe 28. The water suction / fountain part 23 includes a water suction port 29, a water spout 30, a water suction pump 31, a motor-operated valve 32, an ultraviolet germicidal lamp 33, and a connecting pipe 28 connecting these. The water suction port 29 and the fountain port 30 respectively suck hot water in the bathtub 34 and jet hot water into the bathtub 34, and the jet port 30 is provided with a jet unit for mixing air into the hot water. UV germicidal lamp 33
Is to sterilize various bacteria in hot and cold water. As shown in FIG. 2, the filter filtering unit 24 has a configuration in which a filter filtering device 35, electric three-way valves 36a and 36b that are water channel switching devices, a filter medium washing water channel 37a, a filtering water channel 38a, and a drain 39 are connected by a connecting pipe 28. is there. Electric three-way valve 36
a, 36b, filter filtration device 35, and filter medium cleaning water channel 3
7a and the water channel 38a for filtration are connected in a loop.
A filter material 40a is placed in the filter filtration device 35, and openings are provided on the upper surface and the bottom surface of the filter filtration device 35 to allow passage of hot water.
As shown in FIG. 3, the biological filter 25 includes a biological filter 41, electrically operated three-way valves 36c and 36d, and a filter medium cleaning water channel 37.
b, the filtering water passage 38b, the two-way valve 42, and the ejector 43 are connected by the connecting pipe 28. Electric three-way valves 36c and 36d, biological filter 41 and ejector 43
Is the connecting pipe 28, the water passage 37b for cleaning the filter medium, and the water passage 3 for filtration.
It is connected in a loop through 8b. The biological filtration device 41 is provided with a heater 44 and a water temperature detector 45, and the biological filtration device 41 contains a filter medium 40b and microorganisms. Further, an opening is provided on each of the upper surface and the bottom surface of the biological filtration device 41 so that hot water can pass through. The control unit 26 controls the operation of the entire apparatus, and is electrically connected to the entire apparatus. The control unit 26 controls the operation of the entire apparatus, and is electrically connected to the entire apparatus. The controller 46 notifies the control unit 26 of a command such as driving adjustment by a signal, and is electrically connected to the control unit 26.

The operation of the above configuration will be described below. When performing filtration using the filter filtration device 35,
After the power of the controller 46 is input, the electric valve 32 is opened, the electric three-way valves 36a and 36b are opened to the A side, and the electric three-way valves 36c and 36d are opened to the B side. When the water suction pump 31 is started in this state, as shown by arrow A, the bathtub 34
The hot water inside is sucked in through the water suction port 29, and the water suction pump 31
At the same time as being ejected to the fountain port 30 via the electric valve 32, the water reaches the inside of the filter filtration device 35 via the electric suction valve 31 and the electric three-way valve 36a without passing through the electric valve 32. The hot and cold water that has entered the filter filtration device 35 is filtered and purified by the filter material 39a, passes through the filter filtration device 35, is sucked into the water absorption pump 31 again via the electric three-way valve 36b, and so on. ..
In this way, circulating filtration of hot water using the filter filtration device 35 is performed.

After that, when hot water is filtered using the biological filtration device 41, the water suction pump 31 is temporarily stopped, the electric valve 32 is closed, and the electric three-way valves 36b and 36d are set to the A side, and the electric three-way valve. The valves 36a and 36c are opened to the B side. When the circulation pump 27 and the water absorption pump 31 are started in this state, the hot and cold water in the bathtub 34 is, as shown by the arrow B, the water absorption port 29, the water absorption pump 31, the circulation pump 27, and the electric three-way valve 3.
The biological filtration device 41 is reached via 6c. The hot and cold water that has reached the biological filter 41 is filtered by the filter medium 40 in the biological filter 41.
b and the microorganisms are filtered and purified by the microorganisms and the biological filtration device 41
Passing through, then electric three-way valve 36d, ultraviolet germicidal lamp 33
Is ejected from the fountain port 30 via the. In this way, circulation filtration of hot water using the biological filtration device 41 is performed.

As the hot and cold water in the bath 34 is filtered,
The filter media 35a and the filter media 40a, 40b in the biological filtration device 41 become dirty and must be cleaned.

When cleaning the filter medium 40a in the filter device 35, the electric valve 32 is kept closed, the circulation pump 27 is stopped, and the electric three-way valve 3 is used.
The water suction pump 31 is operated with 6a and 36b switched to the B side. Then, the hot and cold water in the bathtub 34 enters the filter filtering device 35 from the water suction port 29 through the water suction pump 31, the filter medium cleaning water passage 37a, and the electric three-way valve 36b, as shown by the arrow c, and flows through the filter medium 40a. After removing the dirt such as dust in this state, the water is drained from the drain 39 via the electric three-way valve 36a. In this way, the filter medium 40a in the filter filtration device 35 is washed.

When the filter medium 40b in the biological filter 41 is washed, the motor-operated valve 32 is closed, the circulation pump 27 is stopped, and the motor-operated three-way valve 36 is also used.
The water suction pump 31 and the circulation pump 27 are operated by opening b and 36c on the A side and opening the electric three-way valves 36a and 36d on the B side. Then, the hot and cold water in the bathtub 34 flows from the water suction port 29 to the water suction pump 31, the circulation pump 27, the water passage 37b for cleaning the filter medium,
It enters the biological filtration device 41 via the ejector 43 and the electric three-way valve 36d. At this time, when the two-way valve 42 communicating with the ejector 43 is opened, air is mixed into the hot water from the two-way valve 42. After the hot and cold water mixed with air enters the biological filtration device 41, the filter medium 40b is put into a fluid state to remove dirt such as dust and the like, passes through the biological filtration device 41, and is operated by the electric three-way valve 36.
It is drained from the drain 39 via c. In this way, the filter medium 40b in the biological filter 41 is washed.

As described above, according to the embodiment of the present invention, the water suction pump 31 is operated to simultaneously eject hot water from the fountain port 30 and circulate and filter hot water, so that the hot water can be purified in a short time. In addition, the filter medium 40 is prepared without mixing air into hot water using an air pump or bubbling the filter medium.
Since a and 40b are filtered, it can be operated without making a loud noise or flowing out from the filtering device, which is convenient for use.

In this embodiment, the biological filter 6 is used after filtering by the filter 4, but it is not necessary to link the filtering by the filter 4 and the filtering by the biological filter 6.

Further, if the heater 44 and the water temperature detector 45 are controlled, the temperature of the hot water can be kept constant and the bath can be always taken.

[0021]

As is apparent from the above description, the circulating filtration apparatus for a bath according to the present invention controls the water intake port, the fountain port, the filtration device, the water absorption pump, the filtration water passage, and the filter medium washing water passage by connecting pipes. Since the whole unit can be controlled by the section, the hot water can be jetted from the water inlet and the hot water can be circulated and filtered at the same time, and the hot water can be purified in a short time. Also, when cleaning the filter medium, it can be performed without mixing air into the hot water with the air pump or bubbling the filter medium, so that the filter medium does not make a loud noise or flow out from the filter device. It is easy to drive and convenient to use.

[Brief description of drawings]

FIG. 1 is a schematic configuration diagram of a circulation purifying apparatus for a bath according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view of a filter / filter section of the device.

FIG. 3 is a sectional view of a biological filtration unit of the same device.

FIG. 4 is a schematic configuration diagram of a conventional circulation purification device for a bathtub.

[Explanation of symbols]

 26 Control Part 28 Connection Pipe 29 Water Intake 30 Fountain 31 Water Absorption Pump 35 Filter Filtration Device 36a, 36b, 36c, 36d Electric Three-way Valve 37a, 37b Water Washing Channel 38a, 38b Filtration Water Channel 40a, 40b Filtration Material 41 Biological Filtration Device

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Massei Yamaguchi 1006 Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Industrial Co., Ltd.

Claims (1)

[Claims] 1. A suction port for sucking hot and cold water in a bathtub, a fountain port for jetting hot and cold water into the bathtub, a filtering device having a filter medium therein, a water absorption pump used for absorbing water from the water suction port, and hot and cold water. A filtering water channel used at the time of filtration, a filtering medium cleaning water channel used at the time of cleaning the filter medium, a water channel switching device having a hot water channel switching function, the suction port, the fountain port, the filtering device, the water absorption pump, and the filtering water channel. A circulation purifying device for a bath, comprising: a connecting pipe that connects the water passage for cleaning the filter medium and the water passage switching device.