JPH0880331A - Circulation opening for bathtub - Google Patents

Abstract

(57) [Summary] [Purpose] The circulation port consisting of multiple nozzles and suction ports is attached to the mounting hole of the bathtub, and the minimum required holes are opened in the bathtub, simplifying construction and causing failure. Is to reduce. [Structure] A holding metal fitting 201 from the inside of the bath that is screwed in to sandwich the bath and is integrated in a watertight manner, and a circulation pipe connector 202 having connection ports for three circulation pipes outside the bath, and three pipes in the circulation pipe connector 202. An inner body 203 that is pressed and fixed to form a flow path, a nozzle body 204 that includes a plurality of nozzles, and a cap 2 that has a recess 215 formed on the periphery thereof.
It consists of 05.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bathtub circulation port of a heating circulation bath device, and more specifically to a heating circulation circuit having a purifying function in its flow path, a jet air circuit, a bubble circuit, or generation of fine bubbles. The present invention relates to a bath device which has two circulation circuits such as a circuit and which only requires one circulation port provided in a bathtub.

[0002]

2. Description of the Related Art When circulating hot water in a bathtub, injecting air in the circulating process to eject air bubbles or fine bubbles into the bathtub, or increasing the speed of the hot water ejected into the bathtub to form a jet air bath As shown in Japanese Utility Model Laid-Open No. 59-48628 and Japanese Utility Model Laid-Open No. 62-127458, a plurality of mounting holes should be drilled in the bath to provide a hot water inlet, a hot water outlet, a bubble jet, etc. I was doing. That is, generally, a hot water inlet is provided near the bottom of the bath and a hot water outlet is provided above the bath. Further, when jetting jet air, a nozzle for jet air is separately provided on the side wall of the bathtub, and in order to supply air bubbles or fine air bubbles into the bathtub, a nozzle for jetting air bubbles is also provided on the side wall or the bottom of the bathtub. It was necessary to provide an opening.

[0003]

However, the provision of a plurality of holes in the bathtub complicates the piping, requires a lot of labor for construction, requires a plurality of nozzles, increases the cost, and increases factors of failure. Since problems such as spoiling the appearance of the bathtub occur, it was desirable to provide the necessary minimum holes. However, as is clear from the above-mentioned conventional example,
Conventional bath equipment, for example, equipment that only performs purification and heating mainly by circulation, or equipment that performs heating and jet air or generation of fine bubbles without purification, and further generates only jet air In the device, the bathtub had to be provided with a plurality of nozzles and openings. Therefore, even if the bath device is provided with a plurality of circuits such as a heating circulation circuit and a jet air circuit, the present invention enables suction and discharge with a single circulation port, and a single mounting hole in the bathtub. It is a series of various trial tests to ensure that the provision of the above is sufficient. In addition, if it is attempted to generate good fine bubbles at the same time while operating the heating circulation circuit when taking a bath with one circulation port, the fine bubbles will be generated by the water flow (discharge water flow) in the bathtub that is simultaneously discharged from the nozzle through the heating circulation circuit. It was necessary to devise a structure that would not disappear.

[0004]

In order to solve the above-mentioned problems, the bathtub circulation port according to the present invention is one in which a mounting hole is bored in the side wall of the bathtub and is attached thereto. And hot water discharge ports facing upward, and a hot water suction port is provided in the periphery away from these discharge ports. Further, in the above-described bathtub circulation port, a nozzle body integrally formed with a bubble discharge port and a hot water discharge port is provided in the center, and a through hole penetrating the nozzle body is provided, and a peripheral edge near the inner wall of the bath It is characterized in that a cap having a large number of recesses for forming hot water introduction grooves is covered.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The contents of the present invention will be described below with reference to the embodiments shown in the drawings. FIG. 1 is a schematic view of a heating circulating bath equipped with a fine bubble generation circuit using a bathtub circulation port 2 according to the present invention. One mounting hole 1 is drilled in the side wall of the bathtub B, and a circulation port 2 having a hot water inlet 21, a downward fine air bubble outlet 22 and an upward hot water outlet 23 is attached in a watertight manner. , Heating circulation circuit 3 and fine bubble generation circuit 4
Is connected to the circulation port 2. The hot water suction port 21 is connected to the heating circulation circuit 3 from the periphery of the discharge ports 22 and 23.
It is designed to be drawn toward.

[0006] The heating circulation circuit 3 is a hot water suction port 2 of the circulation port 2.
A circulation pipe 31 is connected between the hot water discharge port 1 and the hot water discharge port 23, and the heater 5, the filtration tank 6, the circulation pump 7, the activation tank 8 and the heater 5 are passed in the middle, and finally the flow rate switching valve. 9 are sequentially connected, and the filtration tank 6 and the circulation pump 7 are connected.
Ozone generator 11 equipped with an air intake solenoid valve 10 between
Thus, ozone air is injected into the circulation pipe 31. As the heater 5, an appropriate means such as a heater formed by molding a nichrome wire to penetrate through a heat exchanger made of aluminum die cast, a gas combustion heater, an electric heater using zirconia-based ceramic, or the like is adopted. You can Two passes through the heater 5 are for heat exchange without waste.

The filtration tank 6 is constructed such that a sponge-like filter cloth 61 made of polyurethane or the like has a plurality of layers inside, and the filter cloth 61 physically captures human hair, dirt, hair and dust to filter it. Pipe 6 with the hot and cold water
2 is discharged downward. Ozone air is supplied to the circulating hot water by the ozone generator 11 connected to the circulation pipe 31 between the filtration tank 6 and the circulation pump 7 to sterilize various bacteria in the filtered hot water, decompose fat and the like, and deodorize. In the illustrated example, the ozone generator 11 is used for sterilization. However, an ultraviolet sterilizer may be used, and the sterilization treatment may be performed at an appropriate point of the heating circulation circuit 3. You may make it arrange | position in the location etc. near the hot water inlet 21.

The activation tank 8 contains barley stone, sulfur stone,
The active stones 81 such as obsidian, rhyolite, and unweathered pearlite are mixed in one kind or two or more kinds and are filled in the net 82 for the convenience of handling. Hot water is introduced from the lower part and discharged from the upper part. The hot water introduced in this manner is in even contact with the activated stone 81. In the activation tank 8, the bacteria generated on the surface of the stone are biologically purified, and organic substances such as ammonia are decomposed and biologically purified. At the same time, active ingredients such as iron, magnesium, calcium, sodium, and zinc are dissolved in hot water, and the hydrogen ion concentration is neutralized to a neutral degree, so that inorganic chemical treatment is performed.

In the illustrated example, the flow rate switching valve 9 is a valve body 91.
A valve chamber 93 orthogonal to a flow passage 92 connected to the circulation pipe 31 inside is provided, and a diaphragm 94 is provided on the flow passage 92 side of the valve chamber 93.
And the flow path 92 is provided with an orifice 95, and the flow reduction plate 9 is provided with a side to which the diaphragm 94 adheres.
6 is fitted, and the branch pipe 97 from before the fine bubble orifice 14 of the circulation pipe 31 forming the heating circulation circuit 3 is connected to the valve chamber 93. Therefore, when only the heating circulation circuit 3 is operated, the orifice 95, the diaphragm 94, and the flow reduction plate 96.
Although it will be jetted from the gap to the hot water discharge port 23, when the fine bubble generating circuit 4 is operated, the hot water reaches the valve chamber 93 from the branch pipe 97 and presses the diaphragm 94 to reduce the flow reduction plate 96.
It comes into close contact with the side of the above and is discharged from the orifice 95 only to the bath B, so that the flow passage 92 is narrowed.

By using the flow rate switching valve 9 having such a configuration, the amount of hot water can be reduced without stopping the heating circulation circuit 3 and it is possible to prevent the fine bubbles supplied at the same time from being stirred and disappearing. The use of the flow rate switching valve 9 having such a structure has the advantages that the structure is simple and durable, the operation is reliable, and the repair is easy. However, a conventionally used solenoid valve may be used.

As described above, the hot water kept warm by the heater 5 and circulated by the circulation pump 7 is completely treated by the physical treatment by the filtration tank 6, the sterilization treatment by the ozone generator 11, and the biological treatment by the activation tank 8. It will be cleaned. The hot and cold water treated in this way passes through the flow rate switching valve 9,
It is returned to the bathtub B from the hot water outlet 23.

The fine bubble generating circuit 4 is configured such that a circulation pipe 41 is connected to the outlet of the filtration tank 6 of the heating circulation circuit 3 and is connected to the fine bubble discharge port 22. A bubble pump 12, an air separation tank 13, and a fine bubble orifice 14 are interposed, an air intake solenoid valve 15 is connected in front of the fine bubble pump 12, and air that has not dissolved in the air separation tank 13 is connected. A return pipe 16 is provided so as to supply the fine bubble to the fine bubble pump 12 again. By branching from the filtration tank 6, it is possible to prevent dust and human hair from entering the fine bubble generation circuit 4 and causing a failure.

When hot water is sucked by the fine bubble pump 12, the air intake solenoid valve 15 is opened so that the air is entrained in the circulation pipe 41 and sucked in. It reaches the pump 12 and is pressurized inside the pump 12, and this pressurization causes air to be dissolved in the hot and cold water. By passing through the fine bubble orifice 14, the pressure is released at once from the pressurized state and by the orifice. The air that has been dissolved in the hot and cold water is released due to the change in the flow velocity due to the increase in the flow velocity, etc., and fine air bubbles are generated by this air. The fine bubbles have a diameter of about 10 μm and are very fine, so that the floating speed is slow and they stay in the hot and cold water of the bathtub for several minutes to dye the hot and cold water in milky white.

An air separation tank 13 is provided between the fine bubble pump 12 and the fine bubble orifice 14 to separate excess air that has not been melted, and is returned to the fine bubble generating circuit 4 to supply a new air and a fine bubble pump. 12 is supplied. If this air separation tank 13 is not provided, large bubbles will be discharged from the fine bubble discharge port 22. Note that the surplus air may be directly discharged to the atmosphere. These fine air bubbles wrap around the surface of the bather's body, lowering the sensible temperature of hot water by several degrees below the actual temperature, not only suppressing the rise in blood pressure during bathing, but also the dirt adhering to the surface of the body. It will envelop and remove dirt. Reference numerals 17 and 17 are check valves provided in the heating circulation circuit 3 and the fine bubble generation circuit 4.

Since the heating circulation circuit 3 maintains the purifying action and temperature of the hot water, it may be operated continuously for 24 hours, but at night when there is no possibility of bathing,
It may be operated intermittently by detecting the temperature of hot water (not shown). Immediately before or during bathing, the fine bubble generation circuit 4 is operated, and at the same time, the flow rate switching valve 9 squeezes the hot water circulating from the heating circulation circuit 3 to the hot water in the bathtub to remove the hot water sucked from the suction port 21. It is preferably distributed to each of the heating circulation circuit 3 and the fine bubble generation circuit 4.
As a result, the amount of hot water from the hot water outlet 23 is reduced and the retention time of fine bubbles in the bath is extended.

Further, since the discharge directions are opposite by setting the fine bubble discharge port 22 downward and the hot water discharge port 23 upward, the influence of the water flow from the hot water discharge port 23 is reduced, and further Since the bubbles are discharged toward the bottom of the bathtub, the residence time of the fine bubbles can be further extended. An electric flow rate switching valve (not shown) may be provided near the hot water discharge port 23 of the heating circulation circuit 3 to reduce the flow rate when the fine bubble pump 12 is operated. It can be said that such a configuration is excellent not only in that the number of parts is reduced and the configuration is simple, but also that the operation is reliable.

The circulation port 2 according to the present invention will be described with reference to FIG. The circulation port 2 is screwed in via the packing with the bathtub B sandwiched therebetween to be watertightly integrated, and the pressing fitting 201 from the inside of the bathtub and the three circulation pipes 31 on the outside of the bathtub,
A circulation pipe connector 202 for connecting 41, an inner body 203 for pressing and fixing to form three flow paths in the circulation pipe connector 202, a nozzle body 204, and a cap 20.
It consists of 5.

The holding metal member 201 has a collar 211 to be hooked around the periphery of the mounting hole 1 and a screw 221 provided on the outer periphery, and is to be stopped from the inside of the bathtub B to the collar 211 via a packing 231 and a liner 241. is there. The circulation pipe connector 202 is attached to the outside of the bathtub B, and has connection ports 212, 222, 232 of the circulation pipes 31, 31, 41.
And a female screw 242 is provided on the outer periphery of these connection ports 212 to for connection, and a female screw 252 is provided on the inner periphery of the bathtub side.
62 is provided. This circulation pipe connector 202 has a packing 2 between the collar 262 and the bath B.
It is applied to the outer periphery of the mounting hole 1 of the bathtub B via 72, and the male screw 221 of the holding metal member 201 is connected to the circulation pipe connector 2
It is mounted in a watertight manner by screwing it into the internal thread 252 of 02.

The inner body 203 includes a return pipe of the circulation pipe 31 and a connection port 212 of the circulation pipe 41 for supplying fine bubbles.
222, which is connected to the nozzle body 204 by dividing the inside of the circulation pipe connector 202 into three flow paths, namely, a hot water return path 213, a fine bubble flow path 223 and a suction path 233, which is a molded product of rubber or plastic. It consists of

As shown in FIGS. 3 to 5, the nozzle main body 204 is such that the circulation pipe connector 202 is divided into three flow paths by the inner body 203 and communicates with the bath B. Reflux discharge port 214 to bath B and fine bubble discharge port 2
Hollow insert body 234 and collar-shaped ring body 2 constituting 24
It consists of 44. The insert body 234 has one end inserted and held in the hot water reflux path 213 and the fine bubble flow path 223 of the inner body 203, and the hot water reflux discharge port 214 facing the bath B at the other end is directed upwards. The ejection port 224 is formed to face downward. The ring body 244 is provided with a window hole 244a that forms a part of the hot water inlet 21 and is fitted into the inner circumference of the holding metal member 201. The arch portion 244c is formed so as to project like an eaves shape. The window hole 244a constitutes the hot water suction port 21, and the four arms 2 formed by the window hole 244a.
The outer peripheral edge of 44d is fitted into the inner periphery of the press fitting 201. Arch portion 24 provided on the annular portion 244b
4c is for guiding the hot water sucked from the bathtub B to the lower suction passage 233 efficiently.

The cap 205 has a large number of recesses 215 for forming hot water introduction grooves formed on its peripheral edge adjacent to the inner wall of the bath B.
A through hole 225 through which the reflux discharge port 214 and the fine bubble discharge port 224 pass is provided in the center. Cap 2
From the inner surface of 05, four arc-shaped locking pieces 23 fitted to the outer periphery of the annular portion 244b of the ring body 244 of the nozzle body 204.
5 is provided, and a cylindrical piece 245 that comes into contact with the inner surface of the annular portion 244b is provided. In order to prevent the cap 205 from easily coming off the locking piece 235, the nozzle body 2
04 is provided with a ridge 235a for pressing the peripheral edge of the annular portion 244b. When the cap 205 is pushed into the nozzle body 204, the projection 235a is overcome. In the illustrated example, the peripheral edge of the cap 205 is separated from the inner wall of the bathtub B, but the cap 205 may be in close contact with the inner wall of the bathtub B or there may be almost no gap.

[0022]

EFFECT OF THE INVENTION By providing one mounting hole in the bath, and arranging the circulation port 2 having the hot water discharge port 23, the bubble discharge port 22 and the hot water suction port 21, the heating circulation bath and the bubble bath. It is possible to provide a bath device that is integrated with the above, and since it is sufficient to perform the minimum necessary processing on the bathtub, it is possible to prevent the piping from becoming complicated and to simplify the construction. Further, since the nozzles (hot water discharge port 23, bubble discharge port 22) are integrated,
The cost can be suppressed and the cause of failure can be reduced. And, the aesthetics of the inner wall of the bathtub is not spoiled.

When the fine bubble circuit is combined with the heating circulation circuit, the fine bubble discharge port of the circulation port faces downward,
Since the hot water outlet is installed upward, the hot water in the bathtub does not immediately stir the fine air bubbles, and the fine air bubbles are jetted toward the bottom of the bathtub so that the water in the bathtub can be quickly swept. All the hot and cold water will be dyed milky white. If a flow rate switching valve that restricts the flow rate of the heating circulation circuit is used when the fine bubble generation circuit is activated, the fine bubbles will not disappear further if the amount of hot water is reduced from the hot water discharge port. Furthermore, dust and dirt that floated up from the bather's body along with the fine bubbles toward the surface of the hot water caused ripples to appear on the surface of the hot water, which not only became inconspicuous but also caught in the hot water from the inlet of the hot water. Can be led to a filtration tank.

[Brief description of drawings]

FIG. 1 is a schematic diagram showing a main part of a heating circulating bath device using a circulation port according to the present invention.

FIG. 2 is a sectional view of a main part of a circulation port according to the present invention.

FIG. 3 is a cross-sectional view of a state in which a nozzle body and a cap are combined.

FIG. 4 is a perspective view of a nozzle body.

FIG. 5 is a front view of the nozzle body.

FIG. 6 is a rear view of the cap.

[Explanation of symbols]

 B Bathtub 1 Mounting hole 2 Circulation port 21 Suction port 22 Bubble discharge port 23 Discharge port 3 Heating circulation circuit 4 Micro bubble generation circuit 201 Holding metal fitting 202 Circulation pipe connector 203 Inner body 204 Nozzle body 205 Cap

Claims (4)

[Claims] 1. A mounting hole is formed in a side wall of a bath tub, and a circulation port provided in the mounting hole is provided with a downward bubble discharge port and an upward hot water discharge port at the center, and is separated from these discharge ports. A circulation port for a bathtub, characterized in that a hot water inlet is provided around the bath. 2. The bathtub circulation port according to claim 1,
A nozzle body with a bubble discharge port and hot water discharge port formed integrally is provided in the center, a through hole is provided through the nozzle body, and a large number of recesses are formed in the peripheral edge near the inner wall of the bath to form a hot water introduction groove The one that covers the formed cap. 3. The bathtub circulation port according to claim 2,
A flange-shaped ring body is formed integrally with the insert body that constitutes the nozzle body, and a window hole is provided in this ring body and a semi-circular arch portion is provided to guide the hot water downward from the introduction groove. thing. 4. A circulation pipe connector provided with a holding metal fitting from the inside of the bath which is screwed in via a packing across the bath and integrated in a watertight manner, and a connection port for three circulation pipes outside the bath, and in the circulation pipe connector. The inner body made of a molded product of rubber or plastic that closely adheres to the circulation port of the hot water and forms the three flow paths to the inside of the bathtub, and the insert into the cylindrical inner body that forms the reflux discharge path and bubble flow path The body has a body, the outlet of the hot water facing the inside of the bathtub of this insert is formed upward, and the bubble outlet is formed downward, and the insert is integrally formed with a brim-shaped ring body. On the body of the nozzle and the inner wall of the bathtub, a circular ring-shaped projection that fits tightly into the inner circumference of the retainer and has a window hole that guides it to the hot water suction passage of the inner body A recess that forms a hot water introduction groove on the adjacent peripheral edge Many forms, bath circulation port for the bubble discharging port and hot water discharge port in the center consists of a cap covering the nozzle body becomes disposed through hole that penetrates.