JPH1038384A - Hot water circulation type bathtub device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To attach a clarifier simply to a bathtub, making effective use of an established heating means, and besides, circulate hot water in ideal condition. SOLUTION: For a hot water circulation type bathtub device, a separate pipe 5 for suction and a separate pipe 6 for discharge are arranged in a through hole 3A for suction and a through hole 3B for discharge, respectively. The separate pipe 5 for suction is bifurcated outside the bathtub 4, and the two lines are coupled with the suction sides of a circulation path 7 for filtration and a circulation path 8 for heating. The separate pipe 6 of discharge is bifurcated outside the bathtub 4, and the two lines are coupled with the discharge sides of the circulation path 7 for filtration and the circulation path 8 for heating. The circulation path 7 for filtration and the circulation path 8 for heating are coupled in parallel with the bathtub 4 through the separate path 5 for suction and the separate path 6 for discharge. A clarifier 9 is coupled with the circulation path 7 for filtration. A heating means 10 is coupled with the circulation path 8 for heating. The hot water sucked from the separate pipe 5 for suction is discharged from the separate pipe 6 for discharge through the circulation path 7 for filtration or the circulation path 8 for heating.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hot water circulating bathtub apparatus which is operated continuously for 24 hours to keep hot water in a bathtub clear by a finer and to keep the temperature of the hot water at a constant value. Further, the present invention provides a clarifier for filtering hot water in a bathtub with a filter or decomposing organic substances contained in the hot water with bacteria or a photocatalyst to clarify the water, and a heater for heating the hot water to a certain temperature. The present invention relates to a hot-water circulating bathtub device in which a heating means is separately and independently connected to a bathtub.

[0002]

2. Description of the Related Art A hot-water circulating bathtub apparatus capable of taking a bath 24 hours a day has been developed. This apparatus includes a heating means such as a heater for keeping the temperature of the hot water constant, and a finer for clarifying the hot water. As the clarifier, a clarifier that decomposes organic substances contained in the hot water with bacteria or a photocatalyst to clarify, or a filter that filters hot water and keeps it clean is used. This device circulates hot water continuously throughout the day through a finer to keep it clean. In particular, a clarifier that clarifies warm water by the action of bacteria has a feature that it can decompose components such as sweat and dirt dissolved in the warm water and keep the warm water clear for a long period of time. For this reason, the hot-water circulation type bathtub apparatus can be used at any time without needing to replace the hot water in the bathtub, so that it can be used very conveniently and has a high water-saving effect.

[0003] In the hot water circulation type bathtub apparatus having this structure, the hot water in the bathtub is circulated through a finer and a heating means to clarify the hot water and to heat it to a constant temperature. The hot water circulating bathtub apparatus is connected to the bathtub through an inlet port and an outlet port opened in the bathtub to circulate hot water in the bathtub. When this device is connected to a bath, the hot water is kept neat and at a constant temperature. When a bathroom is newly constructed, this device can be connected to the bathtub without any problem by opening the suction port and the discharge port in the bathtub.

[0004] However, some bathtubs have already connected heating means such as a gas cooker for maintaining hot water at a constant temperature. In the bathtub apparatus shown in FIG. 1, a heating means 10 is connected to two through holes 3 opened in a bathtub 4. Further, the heating means 10 capable of maintaining a constant hot water temperature has a built-in temperature sensor (not shown) for controlling a gas burner. The temperature sensor detects the hot water temperature, and when the hot water temperature becomes lower than the set temperature, the gas burner is ignited to heat the hot water, and when the hot water temperature becomes higher than the set temperature,
It is designed to extinguish gas burners. A bath equipped with a heating means for maintaining a constant hot water temperature does not require a heating means, and can be continuously bathed for 24 hours by connecting only a finer. When a hot water circulation type bathtub apparatus equipped with a heating means is connected, it is necessary to discard the heating means such as a gas pot connected to the bathtub. First, the heating means connected to the bathtub cannot be used effectively.

The inventor of the present invention has developed a hot water circulation type bathtub apparatus which is connected to a bathtub to which a heating means is connected as described above, and which can effectively use an existing heating means in the bathtub. The hot water circulation type bathtub apparatus shown in FIGS. 2 and 3 is provided with a heating through-hole 3D at a lower portion of the bathtub 4 and a filtration through-hole 3C at an upper portion thereof. In this apparatus, a heating separation pipe 23 is provided in a heating through-hole 3D opened in a bathtub 4, and a heating circulation path 8 is provided.
The heating means 10 is connected via the. In addition, a filtration separation tube 24 is provided in the filtration through-hole 3C, and the clarifier 9 is connected to the filtration through-hole 7 through the filtration circulation path 7. This device is 2
The heating circulation path 8 and the filtration circulation path 7 are separately connected to the two through holes. As shown in FIG.
The conventional heating means 10 connected to the two through-holes 3 opened at the same time is connected to a heating separation pipe 23 having a double pipe structure as shown in FIG. One of the through-holes to which the heating means 10 is no longer connected is provided with a filtration separation tube 24 having a double-tube structure as a filtration through-hole 3 </ b> C, and connects the finer 9. Therefore, the heating means 10 can be effectively reused without opening another through hole in the bathtub 4 and the bathroom wall 26 to which the heating means 10 has been connected, and without disposing of the heating means 10 already provided. , A finer 9 can be connected.

Further, in the hot water circulation type bathtub apparatus having this structure, the circulation circuit for filtration 7 and the circulation circuit for heating 8 are provided as separate circuits. For this reason, the heating means 10 does not reduce the amount of circulating hot water in the circulation circuit 7 for filtration. This device, which can eliminate the pressure loss caused by the heating means, has a feature that a large amount of hot water is circulated through the finer using a small-capacity circulating pump, and the hot water can be efficiently and neatly held.

Further, as shown in FIG. 3, in this hot water circulation type bathtub apparatus, a sprue separation unit 25 is connected to a bathtub side of a separation pipe 24 for filtration. Gate separation unit 25
Separates a suction unit 17 for sucking warm water from the bathtub 4 and an injection unit 18 for spraying hot water into the bathtub 4 into upper and lower parts. In the sprue separation unit 25 shown in the figure, the suction unit 17 is arranged below the bathtub 4 and the injection unit 18 is arranged above the bathtub 4. Hot water is sucked from a suction unit 17 at the bottom of the bathtub 4 and is jetted from an injection unit 18 at the top. The hot water sprayed on the upper part stirs the water surface and makes the hot water surface rippling. The warm water stirred near the water surface sinks floating substances floating on the water surface into the warm water. Floating substances such as dirt and hair float on the water surface due to the surface tension of the water, but sink into the water when stirred. The suspended matter submerged in the water is sucked from the suction part 17 at the bottom and removed by the finer 9. Further, the waving hot water surface violently moves at the air contact surface to efficiently dissolve oxygen in the air into the hot water. Therefore, the dissolved oxygen of the warm water increases. Oxygen in the warm water is supplied to the bacteria living in the clarifier 9,
Activates bacteria to increase the clarification of warm water. For this reason, warm water is efficiently kept clear.

[0008]

However, this bathtub apparatus in which the gate separating unit is connected to the separation pipe for filtration requires a space for disposing the gate separating unit in the bathtub. Therefore, the space in the bathtub cannot be used effectively. In addition, since the sprue separation unit needs to be purchased separately, extra cost is required.

Further, a heating tub is provided in one through hole, and a heating circulating path is connected to the heating separating pipe to heat the hot water. The suction port 1 and the discharge port 2 located at the opening on the bathtub side of the separation tube 23 are close to each other. This bathtub apparatus, in which the inlet 1 and the outlet 2 are close to each other, cannot be said to be ideal for heat circulation of the circulated hot water. This is because the warm water that has been heated and discharged from the outlet may be sucked in again from the inlet adjacent to the outlet. At this time, the heating unit is in a state of heating only a part of the hot water in the bathtub, so that the heating efficiency of the hot water is reduced. Further, a temperature sensor (not shown) arranged in the heating circulation path,
Water temperature may not be measured accurately. The temperature of the hot water in the bathtub is low at the bottom and high at the top.
Therefore, if the low-temperature hot water at the bottom of the bathtub is sucked and heated by the heating means, and the high-temperature hot water can be discharged from the top of the bathtub, the heat circulation of the hot water in the bathtub becomes an ideal state, and the temperature sensor can also accurately measure the water temperature. . That is, it is ideal that the suction port connected to the heating means is separately provided at the bottom of the bathtub, and the outlet of heated hot water is separately provided at the top of the bathtub.

The present invention has been developed to solve these problems. An important object of the present invention is to effectively use the existing heating means in the bath tub, to keep the hot water in the bath tub clean, and to suck the hot water at the bottom of the bath tub without using a sprue separation unit, It is an object of the present invention to provide a hot water circulation type bathtub apparatus which can jet filtered hot water from an upper part of a bathtub in a state of stirring the water surface. Further, another important object of the present invention is to separate the inlet and outlet of the hot water connected to the heating means so that the hot water can be circulated in an ideal state and the temperature sensor can accurately measure the water temperature. An object of the present invention is to provide a circulation type bathtub apparatus.

[0011]

The hot water circulating bathtub apparatus of the present invention circulates the hot water in the bathtub 4 through a finer 9 such as a filter to keep the hot water in the bathtub 4 clarified.
It is circulated through the heating means 10 to maintain a constant temperature, and has the following unique structure. (A) The bathtub 4 is provided with a through hole 3A for suction and a through hole 3B for filtration. (B) The suction separation tube 5 is provided in the suction through hole 3A, and the discharge separation tube 6 is provided in the discharge through hole 3B. (C) The suction separation pipe 5 is bifurcated outside the bathtub 4 and connected to the suction side of the filtration circulation path 7 and the heating circulation path 8. (D) The discharge separation pipe 6 is bifurcated outside the bathtub 4 and connected to the discharge side of the circulation circuit 7 for filtration and the circulation path 8 for heating. (E) The circulation circuit 7 for filtration and the circulation circuit 8 for heating are connected in parallel to the bathtub 4 via a separation pipe 5 for suction and a separation pipe 6 for discharge. (F) The circulation circuit for filtration 7 is connected to a fining device 9 for clarifying the circulating hot water. (G) The heating circulation path 8 is connected to a heating means 10 for maintaining the circulating hot water at a set temperature.

Further, the hot water circulating bathtub apparatus according to the second aspect of the present invention provides a suction separation pipe 5 provided in the suction through-hole 3A and the discharge through-hole 3B opened in the bathtub 4, and a discharge pipe. One of the separation tubes 6 has an outer peripheral tube 1 outside the center tube 13A.
This is a separation pipe 13 having a double pipe structure provided with 3B, and the other is a separation pipe branched into two outside the bathtub 4. Bathtub 4
The separation pipes bifurcated outside are separated by a separation pipe 13 having a double pipe structure through a circulation path 7 for filtration and a circulation path 8 for heating.
And a circulation circuit 7 for filtration and a circulation circuit 8 for heating.
Are connected in parallel to the bathtub 4 via a separation pipe 5 for suction and a separation pipe 6 for discharge.

Further, the hot water circulation type bathtub apparatus according to the third aspect of the present invention is a hot water circulation type bathtub apparatus, wherein the suction separation pipe 5 and the discharge separation pipe 6 disposed in the two through holes 3 opened in the bathtub 4. One is a flow path separation pipe 27 having a partition plate 28 at the center of the pipe 29 and having a cross section divided in a diametrical direction and extending in the axial direction of the pipe 29, and the other is a bifurcated separation outside the bathtub 4. Tube. The separation tube that is bifurcated outside the bathtub 4 is
Each of them is connected to two divided flow paths of the flow path separation pipe 27 via a filtration circulation path 7 and a heating circulation path 8, and the filtration circulation path 7 and the heating circulation path 8 are used for suction. It is characterized in that it is connected to the bathtub 4 in parallel via a separation pipe 5 and a discharge separation pipe 6.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. However, the embodiments described below exemplify a hot water circulation type bathtub apparatus for embodying the technical idea of the present invention, and the present invention does not specify the bathtub apparatus as follows.

Further, in this specification, in order to make it easy to understand the claims, the numbers corresponding to the members shown in the embodiments are referred to as "claims" and "means for solving the problem". Column ". However, the members described in the claims are not limited to the members shown in the embodiments.

The hot water circulation type bathtub apparatus shown in the sectional views of FIGS. 4 and 5 has two through holes,
A and a discharge through-hole 3B are provided, and a suction separation pipe 5 is connected to the suction through-hole 3A, and a discharge separation pipe 6 is connected to the discharge through-hole 3B. In the bathtub apparatus shown in this figure, the lower through-hole of the bathtub 4 is a suction through-hole 3A, and the upper through-hole is a discharge through-hole 3B. The hot-water circulating bathtub apparatus preferably includes a suction through-hole 3A and a discharge through-hole 3A.
It opens below the bathtub 4 than B. This is because hot water is circulated in an ideal state. However, although not shown, the suction through-hole and the discharge through-hole may be provided side by side or diagonally.

The suction separation pipe 5 has an opening inside the bathtub 4 as the hot water suction port 1. The inhalation separation tube 5 is
The front end is bifurcated into a branch pipe 5a and a branch pipe 5b. The discharge separation pipe 6 has an opening inside the bathtub 4 as the discharge port 2 for hot water. The discharge separation pipe 6 has a distal end portion branched outside the bathtub 4 into a branch pipe 6a and a branch pipe 6b.

The suction separation pipe 5 and the discharge separation pipe 6 fixed to the bathtub 4 penetrate a bathroom wall 26 and protrude outside, as shown in FIG. A circulation path 7 for filtration and a circulation path 8 for heating are connected in parallel to the protrusion of the separation pipe 5 for suction and the protrusion of the separation pipe 6 for discharge. The branch pipe 5 a of the suction separation pipe 5 is connected to the suction side of the filtration circuit 7, and the branch pipe 5 b of the suction separation pipe 5 is connected to the suction side of the heating circuit 8. The branch pipe 6 a of the separation pipe 6 for discharge is connected to the discharge side of the circulation circuit 7 for filtration, and the branch pipe 6 a of the separation pipe 6 for discharge.
b is connected to the discharge side of the circulation circuit 8 for heating.

The circulation circuit for filtration 7 connects a circulation pump for filtration 11 for forcibly circulating hot water and a fining device 9 for keeping the circulated hot water clarified. The hot water sucked from the suction port 1 is clarified by a circulating pump 11 for filtration.
And is injected into the bathtub 4 through the separation pipe 5 for discharge.

The filtration circulation pump 11 circulates hot water to the finer 9 at a sufficient flow rate. Therefore, the circulation pump for filtration 11 is preferably a large-flow circulation pump driven by a motor with power consumption of 100 W. However, the present invention does not specify the capacity of the circulation pump for filtration. As the circulating pump for filtration, a pump driven by a motor having a power consumption of 50 to 300 W can be used. Furthermore, the circulation pump for filtration does not always circulate hot water at a constant flow rate,
When bathing or for a certain period of time after bathing, the hot water circulation amount may be increased, and thereafter, the hot water circulation amount may be decreased.

As the clarifier 9, a clarifier capable of inhabiting bacteria and maintaining the clarity can be used. In the finer 9 for inoculating bacteria, a porous natural stone crushed into predetermined granules, or a porous natural stone was crushed without using it as it was and sintered to a porous state. And those obtained by sintering an inorganic material so as to be porous. Further, the fining device 9 may use a filter that keeps the temperature clarified by a photocatalyst.

The heating circulation path 8 connects a heating circulation pump 12 for forcibly circulating hot water and a heating means 10 for heating the circulated hot water to a constant temperature. The hot water sucked from the suction port 1 is forcibly circulated to the heating means 10 by the heating circulating pump 12 and is supplied to the discharge separation pipe 6.
And is discharged into the bathtub 4. Circulation pump for heating 1
Second, since it is sufficient to circulate hot water to the heating means 10, there is no need to use a circulation pump having a large flow rate. For example, the circulation pump for heating 12 is 1/1 of the circulation pump 11 for filtration.
A pump with a flow rate of 0 to 1/2 can be used.

As the heating means 10, all means for heating hot water to a set temperature, for example, a heat exchanger heated by a gas burner or a kerosene burner, an electric heater, or the like can be used. The heating means 10 has a built-in temperature sensor (not shown). The temperature sensor controls the burner and the electric heater to heat the temperature of the circulated hot water to a set temperature.

Further, the suction port 1 of the separation pipe 5 for suction is
The primary filter 14 is connected. Primary filter 1
Reference numeral 4 incorporates, for example, a synthetic resin foam having a continuous cell, a nonwoven fabric, a net material, and the like, and performs primary filtration of hot water to remove hair and large foreign matters. The primary filter 14 is detachably connected to the suction separation tube 5. The hot water circulation type bathtub apparatus having this structure has a feature that the primary filter 14 is removed and the bathtub apparatus can be easily washed. The primary filter 14 is provided with a suction pipe 15 that can expand and contract downward on the suction side. The suction pipe 15 is slidably inserted into a guide tube 16 provided in the case of the primary filter 14. The lower end of the suction pipe 15 is a suction unit 17 for sucking hot water. The primary filter 14 having the suction pipe 15 extends the suction pipe 14 to the bottom surface of the bathtub 4 so that hot water can be sucked from the bottom of the bathtub 4.

In this bathtub apparatus, warm water is sucked in from the suction portion 17 of the primary filter 14, filtered first by the primary filter 14, and then passed through the suction port 1 through the suction separation tube 5. The hot water that has passed through the suction separation pipe 5 is divided into a branch pipe 5a and a branch pipe 5b on the discharge side of the suction separation pipe 5, and is circulated through the filtration circulation path 7 and the heating circulation path 8, respectively. Hot water circulated through the filtration circuit 7 and filtered by the finer 9;
The hot water heated by the branch pipes 6a and 6
b and merges in the discharge separation pipe 6. The combined hot water is discharged from the outlet 2 into the bathtub.

As shown in FIG. 5, the discharge separation tube 6 is formed into an injection portion 18 by narrowing the tip of the bathtub 4 side slightly. The ejecting section 18 is provided with an ejector 19 for mixing air into the hot water to be ejected. The ejector 19 has a small inner diameter to make hot water flow at high speed. An air passage 20 is provided outside the ejector 19. The air passage 20 has a built-in check valve 21 for preventing backflow of hot water. The check valve 21 is a sphere that is built in the air passage 20 and floats on warm water. When the hot water is injected from the injection unit 18, the air is sucked in, and the hot water mixed with the air is injected into the bathtub 4 from the injection unit 18. The air passage 20 connects a hose 22 for sucking air. The end of the hose 22 is disposed outside the bathtub 4 to allow air to be sucked.

The discharge separation pipe 6 is preferably arranged above the bathtub 4. For this reason, the hot water is sprayed from the spraying section 18 above the bathtub 4. The hot water sprayed from the upper part of the bathtub 4 stirs the water surface and makes the hot water surface rippling. The warm water stirred near the water surface sinks floating substances floating on the water surface into the warm water. Floating substances such as dirt and hair float on the water surface due to the surface tension of the water, but sink into the water when stirred. The suspended matter submerged in water is sucked through the primary filter 14 from the inlet 1 at the bottom. The hot water from which large foreign matter has been removed by the primary filter 14 circulates through the circulation circuit 7 for filtration, and is removed by the finer 9.

Further, the wavy hot water surface moves violently at the contact surface with the air, so that oxygen in the air is efficiently dissolved in the hot water. Therefore, the dissolved oxygen of the warm water increases. Oxygen in the warm water is supplied to the bacteria living in the clarifier 9,
Activates bacteria to increase the clarification of warm water. For this reason, warm water is efficiently kept clear.

The suction separation pipe 5 and the discharge separation pipe 6 shown in FIG. 4 are formed integrally by branching the tip of one pipe into two in a T-shape. However, as shown in FIG. 6, the separation pipe is not integrally formed, but is connected to the end of the existing pipe 32 at the connection pipe 3.
The cheese 31 can be easily bifurcated by connecting the cheese 31 directly or via a 0.

In the bathtub apparatus shown in this figure, a cheese 31 is connected to an existing pipe 32 installed in the bathtub 4 to branch a flow path of hot water. In this figure, a cheese 31 is directly connected to a pipe 32 located on the lower side of the bathtub 4 to form a separation pipe 5 for suction, and hot water is bifurcated into a branch pipe 5a and a branch pipe 5b. Also, a pipe 32 located above the bathtub 4
Is connected to the cheese 31 via a connecting pipe 30 to form a separation pipe 6 for discharge. For the cheese 31, the connecting tube 3 is connected to the bathtub 1.
0 and is bifurcated into a branch pipe 6a and a branch pipe 6b on the circulation path side. The branch pipe 5a and the branch pipe 6a are connected via a circulation circuit 7 for filtration. Branch 5b and branch pipe 6b
Are communicated via a heating circuit 8. The amount of warm water circulated through the filtration circuit 7 and the heating circuit 8 can be adjusted by changing the thickness of the branch pipe of the cheese 31.

In this bathtub apparatus, a hot water channel is branched into two by connecting an existing pipe 32 with a cheese 31 or the like. Therefore, there is a feature that the distal end of the pipe 32 can be branched into two easily and in a short time without replacing the existing pipe 32. Furthermore, in this bathtub apparatus, the separation pipe 6 for discharge arrange | positions the circulation pump 33 between the piping 32 and the cheese 31. The circulation pump 33 arranged at this position forcibly circulates the hot water through both the circulation circuit 7 for filtration and the circulation circuit 8 for heating. Therefore, this device has a feature that it can be conveniently used by being attached to a conventional bathtub equipped only with heating means, particularly a bathtub device not equipped with a circulation pump.

Further, although not shown, the separation pipe may have a Y-shaped tip or a shape in which branch pipes are juxtaposed in parallel. Further, the separation pipe can also change the thickness of the bifurcated branch pipe according to the flow rate of hot water.
For example, the amount of warm water circulated through the circulation circuit for filtration is larger than the amount of warm water circulated through the circulation circuit for heating. Therefore, the separation pipe has a thicker branch pipe connected to the filtration circuit and a thinner branch pipe connected to the heating circuit to regulate the flow rate.

Further, the bathtub apparatus may have a structure shown in FIG. In the bathtub apparatus shown in this figure, a discharge separation pipe 6 having a double pipe structure in which an outer peripheral pipe 13B is disposed outside a central pipe 13A is disposed in a discharge through hole 3B, and a suction through hole is provided. 3A, a separation pipe 5 for suction branched off from the bathtub 4 is provided.

The separation pipe 13 having a double pipe structure is provided with a central pipe 13A.
And the outer peripheral tube 13B are arranged coaxially. Thick outer tube 13
B has a watertight structure and is fixed to the discharge through hole 3B of the bathtub 4. A thin central tube 13A is disposed at the center of the outer peripheral tube 13B to form a coaxial double tube structure. The center tube 13A is connected to the outer tube 13B via a radial connecting arm (not shown).
The center is fixed. The separation tube 13 having a double tube structure is
The inside of the central tube 13A is defined as a central channel 13a,
An area between A and the outer pipe 13B is defined as an outer flow path 13b.
The central tub 13a and the outer tub 13b on the side of the bathtub 4 are the outlets 2 for injecting hot water.

The suction separation pipe 5 is bifurcated outside the bathtub 4 into a branch pipe 5a and a branch pipe 5b. The branch path 5a is formed thicker than the branch path 5b. The branch pipe 5a
The branch pipe 5 b is connected to the suction side of the circulation circuit for filtration 7, and the branch pipe 5 b is connected to the suction side of the circulation circuit for heating 8. The separation pipe 13 having a double pipe structure, which is the separation pipe 6 for discharge, has a central pipe 13A on the discharge side of the circulation circuit 7 for filtration, and an outer pipe 13B which is closed at the end so as not to leak water. Each is connected to the discharge side of the road 8. Separation tube 5 for suction and separation tube 6 for discharge
Connects the circulation circuit for filtration 7 and the circulation circuit for heating 8 in parallel.

In the separation pipe 13 having a double pipe structure shown in the figure, the central pipe 13A is connected to the discharge side of the circulation circuit 7 for filtration, and the central flow path 13a is communicated with the circulation path 7 for filtration. Outer tube 13B
Is closed so that the end does not leak, and the heating circulation path 8 is closed.
And the outer peripheral flow path 13 b communicates with the heating circulation path 8. However, in the separation pipe having the double pipe structure, the center pipe can be connected to the circulation circuit for heating, and the outer pipe can be connected to the circulation circuit for filtration. Further, the bathtub apparatus shown in the figure uses a separation pipe branched into two outside the bathtub 4 as the suction separation pipe 5 and a separation pipe 13 having a double pipe structure as the discharge separation pipe 6. However, by replacing these separation tubes, a separation tube having a double-tube structure can be used for the suction separation tube, and a separation tube branched into two outside the bathtub can be used for the discharge separation tube. .

Further, the bathtub apparatus may have a structure shown in FIG. In the bathtub apparatus shown in this figure, the discharge separation pipe 6 bifurcated outside the bathtub 4 is provided in the discharge through hole 3B.
And a partition plate 2 is provided at the center of the through hole 3A for suction.
A channel separation tube 27 having a suction pipe 8 is provided as the suction separation tube 5.

As shown in FIG. 9, the flow path separation pipe 27 is formed by extending a partition plate 28 for dividing the cross section in the diametrical direction in the center of the inside of a cylindrical pipe 29 in the axial direction of the pipe 29. It is arranged. The partition plate 28 is a flat metal plate having a width substantially equal to the inner diameter of the pipe 29 and a thickness substantially equal to the thickness of the pipe 29. Channel separation pipe 27 of this structure
The partition plate 28 is inserted into a cylindrical pipe 29 and fixed by welding or the like, thereby dividing the volume of the cylindrical pipe 29 into a first flow path 27A and a second flow path 27B. Although not shown, the partition plate may be an H-shaped metal plate having attachment pieces at both edges contacting the inner surface of the pipe.

The discharge separation pipe 6 is branched into a branch pipe 6a and a branch pipe 6b outside the bathtub 4. Branch pipe 6a
Is connected to the discharge side of the circulation circuit for filtration 7, and is connected to the branch pipe 6b.
Is connected to the discharge side of the heating circulation path 8. The flow path separation tube 27 that is the suction separation tube 5 is divided by a partition plate 28 into a first flow path 27A and a second flow path 27B. The suction separation pipe 5 connects the first flow path 27A to the suction side of the circulation circuit 7 for filtration, and the second flow path 27B to the suction side of the circulation path 8 for heating. The suction separation pipe 5 and the discharge separation pipe 6 connect the circulation circuit 7 for filtration and the circulation circuit 8 for heating in parallel.

The bathtub apparatus shown in the figure uses a flow path separation pipe 27 for dividing the flow path by a partition plate 28 for the suction separation pipe 5 and bifurcates the discharge separation pipe 6 outside the bathtub 4. These separation tubes are exchanged, and the separation tube for suction is used, and the one that is bifurcated outside the bathtub is used for the separation tube for suction. Road separation tubes can also be used.

[0041]

The hot water circulating bathtub apparatus of the present invention is effectively connected to a bathtub without disposing a heating means for maintaining hot water in the bathtub at a constant temperature without discarding the bathtub.
A bathtub device that can take a bath continuously for 24 hours can be provided. This is because the bathtub apparatus of the present invention connects the heating means and the finer to another hot water circulation path. The bath which has already connected the heating means to keep the temperature of the hot water constant can be bathed at any time for 24 hours by connecting a finer which can clarify the hot water. In the bathtub apparatus of the present invention, two through-holes are provided in the bathtub, and the heating means and the finer are connected in parallel via separation pipes provided in these through-holes. Rather than connecting a heating means and a fining device to a single hot water circulation path as in a conventional hot water circulation type bathtub apparatus. In the bathtub apparatus having this structure, since the finer is connected to the heating means and another circulation path, a feature that the finer can be connected by effectively using the heating means connected to the bathtub is realized.

Moreover, in the conventional bathtub apparatus in which the heating means is connected to the bathtub, the heating means is connected to the bathtub through two pipes provided in the bathtub, whereas the present invention is not limited thereto. In the bathtub apparatus, the heating means and the finer are connected to the bathtub via a separation pipe for discharge and a separation pipe for suction. In other words, 2
The heating means and the clarifier are connected to the bathtub through the separation tube. For this reason, the bathtub apparatus of the present invention replaces the conventional two pipes with two separation pipes, thereby providing a finer installed outside the room without providing extra through-holes in the bathtub or bathroom wall. There is a feature that can be easily installed.

Further, the hot water circulation type bathtub apparatus of the present invention, in which a filtration circulation path and a heating circulation path are connected in parallel to a suction separation pipe and a discharge separation pipe, has a suction separation pipe below a bathtub.
By arranging the discharge separation tube above the bathtub, the hot water in the bathtub can be circulated in an ideal state without using a gate separation unit. The bathtub apparatus of this structure draws hot water from the lower part of the bathtub from the suction port of the suction pipe at the lower part of the bathtub, and supplies hot water to the upper part of the bathtub from the discharge port of the discharge pipe at the upper part of the bathtub. Can be sprayed. Therefore, suspended matter and foreign substances sinking in the water can be efficiently sucked from the suction port at the bottom of the bathtub, and the warm water spouted from the discharge port at the top of the bathtub can efficiently stir the water surface. That is, the hot water circulation type bathtub apparatus of the present invention has a feature that hot water in the bathtub can be circulated in an ideal state without using a gate separation unit. A bathtub device that does not require a gate separation unit has a feature that the inside of the bathtub can be widened and used effectively, and the extra cost of the gate separation unit can be saved.

Further, a bathtub apparatus in which a suction separation pipe is provided at a lower part of a bathtub and a discharge separation pipe is discharged at an upper part of the bathtub,
Hot water circulating in the heating circuit can be circulated in an ideal state. This is because low-temperature hot water is sucked in from the lower part of the bathtub and high-temperature hot water is discharged from the upper part of the bathtub. For this reason, the hot water in the bathtub is efficiently circulated heat not only in a part but also in the entire bathtub. In addition, by arranging the suction separation pipe and the discharge separation pipe on the upper and lower sides, the suction port and the discharge port are separated from each other, thereby realizing a feature that the temperature sensor can accurately measure the temperature of the hot water.

Further, the hot water circulating bathtub apparatus of the present invention has a feature that the hot water flow path can be divided easily and easily. This is because the separation tube provided in the bathtub apparatus has a very simple structure that is bifurcated outside the bathtub. The separation tube of this structure does not require a complicated structure for dividing hot water. For this reason, the cost required for the separation tube can be reduced, and the time and cost required for installing the bathtub apparatus can be saved. Moreover, since the separation pipe has a simple structure, a member for reducing the effective area of the pipe is not required inside the pipe. The separation pipe that can effectively use the effective area of the pipe flow path does not reduce the circulation amount of hot water.
Therefore, the bathtub device of this structure is simple and easy,
The flow path of the hot water can be divided into two, and the circulation amount of the hot water can be improved.

[Brief description of the drawings]

FIG. 1 is a schematic cross-sectional view showing a conventional hot water circulation type bathtub apparatus.

FIG. 2 is a schematic cross-sectional view showing a hot water circulation type bathtub device developed earlier by the present inventors.

FIG. 3 is a cross-sectional view of a sprue separation unit of a hot water circulation type bathtub device developed earlier by the present inventors.

FIG. 4 is a schematic cross-sectional view showing a specific example of a hot water circulation type bathtub apparatus according to an embodiment of the present invention.

FIG. 5 is an enlarged cross-sectional view of the vicinity of a bathtub of the hot-water circulation type bathtub apparatus shown in FIG. 4;

FIG. 6 is a schematic cross-sectional view showing another specific example of the hot water circulation type bathtub apparatus according to the embodiment of the present invention.

FIG. 7 is a schematic sectional view showing another specific example of a hot water circulation type bathtub apparatus according to the embodiment of the present invention.

FIG. 8 is a schematic sectional view showing another specific example of a hot water circulation type bathtub apparatus according to the embodiment of the present invention.

9 is a perspective view of a flow path separation tube of the bathtub apparatus shown in FIG.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Inlet 2 ... Outlet 3 ... Through-hole 3A ... Through-hole for suction
3B: Through-hole for discharge 3C: Through-hole for filtration 3D: Through-hole for heating 4: Bathtub 5: Separation pipe for suction 5a: Branch pipe
5b ... branch pipe 6 ... separation pipe for discharge 6a ... branch pipe
6b ... Branch pipe 7 ... Circulation path for filtration 8 ... Circulation path for heating 9 ... Refiner 10 ... Heating means 11 ... Circulation pump for filtration 12 ... Circulation pump for heating 13 ... Separation pipe of double pipe structure 13A ... Center pipe
13B ... outer peripheral pipe 13a ... central flow path 13b ... outer peripheral flow path 14 ... primary filter 15 ... suction pipe 16 ... guide cylinder 17 ... suction part 18 ... injection part 19 ... ejector 20 ... air path 21 ... check valve 22 ... hose 23 ... Separating tube for heating 24 ... Separating tube for filtration 25 ... Gate separation unit 26 ... Wall 27 ... Channel separation tube 27A ... First channel
27B ... second flow path 28 ... partition plate 29 ... piping 30 ... connecting pipe 31 ... cheese 32 ... piping 33 ... circulation pump

Claims (3)

[Claims] The hot water in the bathtub (4) is circulated through a fining device (9) such as a filter to be kept fine, and the hot water in the bathtub (4) is heated by a heating means (10). ) Is a device which is circulated and maintained at a constant temperature, having all of the following configurations. (A) The bathtub (4) has a suction hole (3A) and a discharge hole (3B). (B) A separation pipe for suction (5) is provided in the through hole for suction (3A), and a separation pipe for discharge (6) is provided in the through hole for discharge (3B). (C) The suction separation pipe (5) is bifurcated outside the bathtub (4) and connected to the suction side of the circulation circuit for filtration (7) and the circulation circuit for heating (8). (D) The discharge separation pipe (6) is bifurcated outside the bathtub (4) and connected to the discharge side of the filtration circuit (7) and the heating circuit (8). (E) The circulation circuit for filtration (7) and the circulation circuit for heating (8) are connected in parallel to the bathtub (4) via a separation pipe for suction (5) and a separation pipe for discharge (6). (F) The circulation circuit for filtration (7) is connected to a finer (9) for clarifying the circulating hot water. (G) The heating circulation path (8) is connected to a heating means (10) for heating the circulating hot water to a set temperature. 2. The hot water in the bathtub (4) is circulated to a finer (9) such as a filter to be kept fine, and the hot water in the bathtub (4) is heated by heating means (10). ) Is a device which is circulated and maintained at a constant temperature, having all of the following configurations. (A) The bathtub (4) has a suction hole (3A) and a discharge hole (3B). (B) A separation pipe for suction (5) is provided in the through hole for suction (3A), and a separation pipe for discharge (6) is provided in the through hole for discharge (3B). (C) One of the separation pipe for suction (5) and the separation pipe for discharge (6) has a double pipe structure in which the outer pipe (13B) is disposed outside the center pipe (13A). ), And the other is a separation tube that is bifurcated outside the bathtub (4). (D) The separation pipe (13) having a double pipe structure has a center flow path (13a) inside the center pipe (13A) and an outer flow path (13b) between the center pipe (13A) and the outer circumference pipe (13B). ). (E) One of the separation pipes bifurcated outside the bathtub (4) is connected to the central flow path (13a) via the first circulation path, and the other is set to the outer peripheral flow path (2) via the second circulation path. 13b). (F) The first circulation path and the second circulation path are separated pipes for suction (5)
And is connected in parallel to the bathtub (4) through a discharge separation pipe (6). (G) One of the first circuit and the second circuit is a filtration circuit (7) and the other is a heating circuit (8). (H) The circulation circuit for filtration (7) is connected to a clarifier (9) for clarifying the circulating hot water. (I) The heating circulation path (8) is connected to a heating means (10) for maintaining the circulating hot water at a set temperature. The hot water in the bathtub (4) is circulated to a finer (9) such as a filter to be kept fine, and the hot water in the bathtub (4) is heated by a heating means (10) for heating the hot water. ) Is a device which is circulated and maintained at a constant temperature, having all of the following configurations. (A) The bathtub (4) has a suction hole (3A) and a discharge hole (3B). (B) A separation pipe for suction (5) is provided in the through hole for suction (3A), and a separation pipe for discharge (6) is provided in the through hole for discharge (3B). (C) One of the separation pipe for suction (5) and the separation pipe for discharge (6) is divided at the center of the pipe (29) in a diametrical direction and is extended in the axial direction of the pipe (29). This is a flow path separation pipe (27) having a partition plate (28), and the other is a separation pipe branched into two outside the bathtub (4). (D) The flow path separation pipe (27) divides the flow path of hot water into a first flow path (27A) and a second flow path (27B) by a partition plate (28). (E) Separation pipes bifurcated outside the bathtub (4) are respectively passed through the first circulation path (27) of the flow path separation pipe (27) via the circulation circuit for filtration (7) and the circulation circuit for heating (8). 27A) and the second flow path (27B). (F) The circulation circuit for filtration (7) and the circulation circuit for heating (8) are connected in parallel to the bathtub (4) via a separation pipe for suction (5) and a separation pipe for discharge (6). (G) The circulation circuit for filtration (7) is connected to a clarifier (9) for clarifying the circulating hot water. (H) The heating circulation path (8) is connected to a heating means (10) for maintaining the circulating hot water at a set temperature.