JP2002286296A - Piping structure of bathtub - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a piping structure of a bathtub which can reduce a cost with good appearance without contaminating the inside of the bathtub. SOLUTION: The piping structure of the bathtub comprises one circulation port body 2 having a suction port 2a and a discharge port 2b and mounted at the bathtub 1, and a cleaner 4 having a circulation passage 5 connected at one end side to the port 2a of the body 2 and at another end to the port 2b. In this structure, circulating pipings 12, 13 of a water heater 11 are connected to the passage 5 of the cleaner 4. A check valve 9 is provided at the upstream side of the connecting site of the pipes 12, 13 of the heater 11 in the passage 5 of the cleaner 4.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a piping structure for a bathtub.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 13, when a purifying device 53 for purifying hot water in a bathtub is connected to a bathtub 51 by a pipe, and when a pipe of a hot water supply device 55 is connected, a purifying device is used. The cleaning circulation port main body 52 to which the circulation path of 53 is connected and the additional heating circulation port main body 54 to which the circulation pipe of the hot water supply device 55 is connected are separately provided. Since the bath main body 52 and the recirculation main body 54 for additional heating are provided in the bathtub 51, there is a problem that the appearance in the bathtub 51 is deteriorated.

In order to solve such a problem, FIG.
As shown in FIG. 4, there is a bathtub 51 in which one circulation port main body 52 is provided, and circulation pipes 57 and 58 of a hot water supply device 55 are connected in a circulation path 56 of the purification device 53. However, in the piping configuration as shown in FIG. 14, it is necessary to control the operation of the purifying device 53 and the hot water supply device 55 via the board 59 for mutual communication, and it is necessary to provide the control board 59, which increases the cost. There was a new problem of getting it.

Conventionally, as shown in FIG. 15, a hot water supply device 60 provided with a purifying function section 61 capable of purifying water is used to form a single circulation port main body 52 provided in a bathtub 51. On the other hand, there is a case where the outgoing pipe 58 and the return pipe 57 of the hot water supply device 60 are connected to each other,
In the configuration of FIG. 15, when the filter or the like of the purification function unit 61 incorporated in the hot water supply device 60 fails, the entire hot water supply device 60 needs to be replaced, and the existing hot water supply device 55 cannot cope with the problem. there were.

[0005]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned conventional problems, and has a single circulation port main body to improve appearance and reduce costs. A first gist of the present invention is to provide a piping structure of a bath tub capable of purifying good hot water, a first gist of which is to attach a circulation port main body having a suction port and a discharge port to the bath tub, and A piping structure of a bathtub provided with a purifying device having a circulation path having one end connected to the suction port of the mouth body and the other end connected to the discharge port, and a circulation pipe of a hot water supply device connected to the circulation path of the purification device. , A check valve is disposed in a circulation path of the purification device upstream of a connection portion of a circulation pipe of the hot water supply equipment. The second gist is that one circulating port body having three or four ports serving as a suction port and a discharging port is attached to a bathtub, and the circulating port body is circulated with a circulating path of a purification device and a circulating water heater. That is, the piping was connected.

[0006]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a schematic configuration diagram showing a piping structure of a bathtub according to a first embodiment.
A purifying filter 3 is provided inside the circulation port body 2, and a suction port 2 is provided on the purifying filter 3 side.
a is formed, and a discharge port 2 b
Are formed. Further, the purifying device 4 and the hot water supply device 11 are connected to the bathtub 1 from the outside, and the upstream end of the circulation path 5 of the purification device 4 is connected to the suction port 2 a of the circulation port main body 2. Is the discharge port 2 of the circulation port body 2
The cleaning device 4 is connected to the outside wall of the bathtub 1 from outside.

In the circulation path 5 of the purification device 4, a sterilization tank 6, a circulation pump 7, a flowing water detection sensor 8, a second check valve 9, and a first check valve 10 are provided from the upstream side. . The return pipe 12 of the hot water supply device 11 is connected between the second check valve 9 and the first check valve 10 in the circulation path 5 of the purification device 4. The downstream pipe of the first check valve 10 is connected to the outgoing pipe 13 of the hot water supply apparatus 11, and the outgoing pipe 13 and the return pipe 12 constitute a circulation pipe of the hot water supply apparatus 11, Hot water supply equipment 11
There is a built-in pump for reheating operation.

In such a piping configuration, the purifying device 4
Is operated to purify the hot water in the bathtub 1, as shown in FIG. 2, the circulating pump 7 of the purifying device 4 is operated to move the bathtub from the suction port 2 a of the circulation port main body 2 into the circulation path 5. Inhale the hot water inside. In this case, since the hair passes through the purification filter 3, the hair, scale, and the like are removed by the purification filter 3. The hot water thus sucked into the circulation path 5
It is sterilized in the sterilization tank 6, passes through the flowing water detection sensor 8 and the check valves 9, 10, and is ejected from the discharge port 2b into the bathtub 1,
Hot water is well purified.

Next, when the hot water supply equipment 11 is operated to perform additional heating of the hot water in the bathtub 1, the pump in the hot water supply equipment 11 is operated as shown in FIG. The circulation pump 7 is also operated, hot water is sucked into the circulation path 5 from the suction port 2a of the circulation port main body 2, and purified hot water is ejected from the discharge port 2b of the circulation port main body 2 into the bathtub 1. Some hot water enters the hot water supply device 11 through the return pipe 12 because the pump in the hot water supply device 11 is operating, is heated in the hot water supply device 11, is discharged through the outgoing pipe 13, and is circulated. The water is discharged from the discharge port 2b of the circulation port main body 2 into the bathtub through the passage 5. Therefore, while purifying the hot water with the purifying device 4, the hot water can be satisfactorily heated to perform the additional heating operation.

Further, as shown in FIG. 4, in the hot water operation for hot water in the bathtub 1, the hot water supply equipment 11 is operated while the circulation pump 7 of the purification device 4 is stopped, and the hot water supply equipment 11 is operated. The hot water boiled inside enters the circulation path 5 through the return pipe 12 and the outgoing pipe 13, is discharged from the circulation path 5 through the discharge port 2 b of the circulation port body 2 into the bathtub 1, and enters the bathtub 1. Hot water is stored, and in this example, the circulation path 5
However, since the second check valve 9 is provided on the upstream side of the connection portion of the hot water supply device 11 to which the return pipe 12 is connected, the hot water does not flow backward in the circulation path 5 during the hot water operation. ,
Hot water can be reliably prevented from being spouted into the bathtub from the suction port 2a of the circulation port body 2 during the hot water operation, whereby the hot water flows back to the purification filter 3 and the purification filter 3
It is configured such that dirt adhering to the tub 1 does not enter the bathtub 1.

Therefore, in the piping configuration of the present embodiment, the above-mentioned FIG.
It is not necessary to provide the control board 59 as shown in (1), and the check valves 9 and 10 can be disposed at predetermined positions in the circulation path 5 so that the flow of hot water can be controlled mechanically and the cost can be reduced. Since only one circulation port main body 2 needs to be provided in the bathtub 1, the bathtub has a good appearance. Further, since hot water does not flow toward the purification filter 3, dirt adhering to the purification filter 3 does not return to the bathtub 1.

Next, FIG. 5 is a schematic view showing a piping structure of a second embodiment. In FIG. 5, one circulation port main body 2 attached to a bathtub 1 is provided with a purifying filter 3 provided with a purifying filter 3. The suction port 2a is opened at the center, the discharge port 2b is opened above, and the circulation port 2b is provided below the suction port 2a.
c is opened, and three ports are opened in one circulation port main body 2. The upstream end of the circulation path 5 of the purification device 4 is connected to the suction port 2a, and the downstream end is connected to the discharge port 2b. The return pipe 12 of the hot water supply device 11 is connected to the circulation port 2 c of the circulation port main body 2, and the outgoing pipe 13 of the hot water supply device 11 is connected to the downstream side of the check valve 10 in the circulation path 5 of the purification device 4. It has been done.

In such a piping configuration, as shown in FIG.
When the purification operation is performed, hot water in the bathtub 1 is sucked into the circulation path 5 from the suction port 2a through the purification filter 3, is sterilized and purified in the sterilization tank 6, and is discharged into the bathtub through the discharge port 2b. Will be returned. 7, the hot water supply device 11 is operated, and the hot water in the bathtub 1 is supplied to the circulation port 2 of the circulation port body 2 by the pump in the hot water supply device 11.
c is drawn into the return pipe 12, heated in the hot water supply device 11, and the heated hot water flows through the outgoing pipe 13 to the downstream side of the check valve 10 in the circulation path 5, and Hot water heated from the discharge port 2b is returned into the bathtub 1 and refired. At this time, the circulation pump 7 of the purification device 4
In the case of also operating simultaneously, the hot water can be satisfactorily heated while purifying the hot water with the purifying device 4 to perform the additional heating operation.

In addition, in the operation of hot water into bathtub 1, FIG.
As shown in the figure, hot water boiled in the hot water supply apparatus 11 is discharged into the bathtub from the discharge port 2b and the circulation port 2c of the circulation port body 2 through the outgoing pipe 13 and the return pipe 12, respectively. The hot water is stored in the inside of the bath. During the hot water operation, the check valve 10 is provided so that the hot water does not flow to the purification filter 3 side, and the dirt of the purification filter 3 flows out into the bathtub 1. There is no contamination of the bathtub 1. Also in this example, the bathtub 1 has a circulation port main body 2.
Are provided, the appearance is good, and since the control board 59 is not required, the cost can be reduced.

Next, FIG. 9 shows a third embodiment in which four openings are formed in one circulation port main body 2. A purifying filter 3 is provided in one circulation port main body 2 attached to the bathtub 1, and the circulation port main body 2 has a suction port 2a, a discharge port 2b, a circulation port 2c, and a circulation port 2d. Is formed. A circulation path 5 of the purification device 4 is connected to the suction port 2a and the discharge port 2b. In this example, only a circulation pump 7 is provided in the circulation path 5, and a check valve 10, a sterilization tank 6, a running water The configuration is such that the detection sensor 8 is omitted. In addition, the circulation port 2 of the circulation port body 2
c, a circulation path of the hot water supply device 11 is connected to the circulation port 2d. That is, the bathtub return pipe 12 is connected to the circulation port 2c.
Is connected to the circulation port 2d, and a bathtub going pipe 13 is connected to the circulation port 2d.

As described above, the four openings 2 are formed in the circulation port main body 2.
a, 2b, 2c, 2d, the check valve 1
0 is not required, and the check valve is not broken, so that reliability is improved and maintenance is easy. Furthermore, if the sterilization tank 6 and the flowing water detection sensor 8 are also omitted, only the circulation pump 7 needs to be provided in the circulation path 5, which can be extremely simplified, and the purification filter 3 in the circulation port main body 2 is replaced. Thus, the maintenance can be performed satisfactorily, and since only the circulation pump 7 needs to be installed, it can be installed compactly in a narrow space behind the bathtub 1. That is, the running water detection sensor 8 which is a functional member for confirming the operating state of the hot water supply device 11 and the presence of water
In the piping configuration in which the four openings 2a, 2b, 2c, 2d are formed, the functions are separated, so that it is not necessary to check the operation state of the hot water supply equipment 11, and the presence of water is determined by the circulation pump 7
It can be omitted because it can be substituted by the detection of the number of revolutions.

FIG. 10 shows a specific example of the circulation port main body 2 shown in FIG.
FIG. FIG. 10 is a perspective view of the circulation port main body 2 attached to the bathtub 1 as viewed from the inside of the bathtub, and a pair of suction ports 2a, 2a are opened at the bottom side of the circulation port main body 2. A discharge port 2b is opened at the center of the upper surface of the main body 2. A circulation port 2 is provided on the right side of the circulation port body 2.
c is opened, and a circulation port 2d is opened on the left side surface. The cassette holder 15 is inserted into the circulation port main body 2 from the upper surface side, except for the knob 15a at the upper end, and the purification filter 3 is housed in the cassette holder 15 in a sandwiched state. As described above, the purification filter 3 is configured so as to be sandwiched between the cassette holder 15 and can be mounted on the circulation port main body 2. By pulling the knob 15 a of the cassette holder 15 and pulling it upward, the purification filter 3 is removed from the circulation port main body 2. The cassette holder 15 is detached so that the internal purification filter 3 can be easily taken out.

This cassette holder 15 is used for the circulation port main body 2.
The purification filter 3 has a large area, and has a wide area. The pressure loss of the water flowing through the purification filter 3 is minimized, and the circulation pump 7
It is configured so as not to burden the user. That is, since the purifying filter 3 is configured to have a small number of folds in the cassette holder 15 and to secure a filter surface having a wide area, the filtering efficiency is improved.

As shown in the side view of FIG. 11 and the plan view of FIG. 12, the circulation port main body 2 is fitted to the branch unit 16 fixed to the back side of the bathtub 1 with one touch from the inside of the bathtub. It is configured to be easily detachable. In the branching unit 16, a water path constituting the circulation path 5 is formed, and a part of the bathtub return pipe 12 and the bathtub going pipe 13 is formed therein.
The circulating pump 7 is attached and fixed to the side surface of the tub 1 so that the circulating pump 7 can be compactly installed on the back side of the bathtub 1.

The branch unit 16 is provided with a bathtub 1 from the inside of the bathtub.
The fixing unit 17 is inserted through the opening of the branch unit.
And the branch unit 16 can be firmly fixed to the bathtub 1 via the fixing portion 17. A claw portion 17a is formed on the outer periphery of the fixing portion 17, and an elastic locking claw 2e formed on the back surface of the circulation port main body 2 is fitted into the claw portion 17a. On the other hand, the circulation port main body 2 is configured to be detachable with a single touch.

In the fixed portion 17, a circulation path inlet 5a serving as an entrance of the circulation path 5 formed in the branching unit 16 and a circulation path exit 5b serving as an exit of the circulation path 5 are formed vertically. The circulation path outlet 5b communicates with the discharge port 2b of the circulation port main body 2 as shown in FIG. The fixed portion 17 has a bathtub return pipe inlet 12a serving as an inlet of the bathtub return pipe 12 on the right side, and a bathtub going pipe inlet 13a serving as an inlet of the bathtub going pipe 13 formed on the left side.

The branch unit 16 is provided with a pair of connecting portions 12b and 13b protruding upward for connecting a water heater pipe, and the connecting portion 12b is connected to a bathtub return pipe 12 formed in the branch unit 16. The connection portion 12b is connected to the bathtub return pipe 12 from the hot water supply device 11.
Can be connected. The connection portion 13b communicates with the bathtub going pipe 13 formed in the branch unit 16, and can connect the bathtub going pipe 13 from the hot water supply device 11.

Therefore, in such a configuration, the branching unit 16 and the circulation pump 7 can be compactly installed on the back side of the bathtub 1, and the circulation port main body can be fixed to the fixing portion 17 of the branching unit 16 from the bathtub side with one touch. 2 can be attached and detached. In addition, the circulation port body 2 can be easily removed to clean or replace the purification filter 3,
Maintenance is easy.

The circulating pump 7 can be constituted by an inexpensive self-supplying pump by being mounted on the side of the branching unit 16, so that the whole can be formed at low cost. In such a configuration, the hot water in the bathtub 1 is sucked in from the suction ports 2a, 2a by the operation of the circulation pump 7, and is purified through the purification filter 3, and the circulation path inlet 5
a into the circulation path 5 in the branching unit 16 and circulated through the circulation path outlet 5b from the discharge port 2b into the bathtub.
Bathtub water can be purified well. Since the discharge direction of the circulation pump 7 is one-way, hot water does not flow back to the purification filter 3 even if the check valve is not provided, and the dirt of the purification filter 3 flows out into the bathtub 1 and passes through the bathtub. Don't get dirty.

In the reheating operation, the hot water in the bathtub 1 is sucked from the circulation port 2c of the circulation port main body 2 by the operation of the pump in the hot water supply device 11, and the hot water in the branch unit 16 passes through the bathtub return pipe inlet 12a. Hot water enters the hot-water supply equipment 11 and is heated in the hot-water supply equipment 11 through the bath-tub return pipe 12 connected to the connection portion 12b. Through the connection part 13b and the piping 13
The hot water is returned from the bathtub going pipe inlet 13a through the circulation port 2d of the circulation port main body 2 into the bathtub and refired.

In the hot water operation, the hot water supply equipment 1
The hot water boiled in 1 enters the branch unit 16 through both the bathtub return pipe 12 and the bathtub going pipe 13, and from the bathtub return pipe inlet 12 a and the bathtub going pipe inlet 13 a through the circulation ports 2 c and 2 d, respectively. A hot water beam is performed.

[0027]

According to the present invention, there is provided a circulation path in which one circulation port body having a suction port and a discharge port is attached to a bathtub, and one end is connected to the suction port of the circulation port body and the other end is connected to the discharge port. In a piping structure of a bath tub provided with a purification device having a water purification device and a circulation pipe of the hot water supply device connected to a circulation passage of the purification device, in a circulation passage of the purification device, upstream of a connection portion of the circulation piping of the hot water supply device. By arranging the check valve, the bathtub is provided with one circulation port main body, so that the appearance is good, and
The flow of hot water can be controlled by the check valve, and the cost can be reduced because a control board is not necessary unlike the conventional one. In addition, it is possible to cope with the existing hot water supply equipment. Since the hot water does not flow into the passage on the side of the purification filter during the beam operation, the dirt caught by the purification filter does not return to the bathtub, and the hot water operation can be performed well without soiling the inside of the bathtub. Become.

In the bathtub, a suction port and a discharge port 3 are provided.
Or, by attaching one circulation port body having four ports and connecting the circulation path of the purification device and the circulation pipe of the hot water supply equipment to the circulation port body, the bathtub is equipped with one circulation port body. It has good appearance and does not require a conventional control board, so that cost can be reduced, and it is possible to use existing hot water supply equipment to cope with it. It can be controlled well so as not to stain the inside.

[Brief description of the drawings]

FIG. 1 is a schematic piping configuration diagram showing a piping structure of a first embodiment.

FIG. 2 is an explanatory diagram showing a flow of a purification operation of the first embodiment.

FIG. 3 is an explanatory diagram showing a flow of a reheating operation of the first embodiment.

FIG. 4 is an explanatory diagram showing a flow of a hot water operation of the first embodiment.

FIG. 5 is a schematic piping configuration diagram showing a piping structure of a second embodiment.

FIG. 6 is an explanatory diagram showing a flow of a purification operation of the second embodiment.

FIG. 7 is an explanatory diagram showing a flow of a reheating operation of the second embodiment.

FIG. 8 is an explanatory diagram showing a flow of a hot water operation of the second embodiment.

FIG. 9 is a schematic piping configuration diagram showing a piping structure to which a circulation port main body having four openings is attached.

FIG. 10 is a perspective view showing the internal configuration of the circulation port main body in FIG. 9 in an attached state.

11 is a sectional side view showing a state in which the circulation port main body of FIG. 10 is attached to a branch unit fixed to the back side of the bathtub.

FIG. 12 is a plan view of FIG. 11;

FIG. 13 is a piping configuration diagram showing a piping structure of a conventional bathtub.

FIG. 14 is a piping configuration diagram of a conventional bathtub.

FIG. 15 is a diagram showing still another conventional piping configuration.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Bathtub 2 Circulation port main body 2a Suction port 2b Discharge port 2c, 2d Circulation port 2e Locking claw 3 Purification filter 4 Purification device 5 Circulation path 5a Circulation path entrance 5b Circulation path exit 6 Sterilization tank 7 Circulation pump 9 Second check valve DESCRIPTION OF SYMBOLS 10 Check valve 11 Hot-water supply equipment 12 Return pipe 12a Bathtub return pipe inlet 12b Water heater pipe connection part 13 Outgoing pipe 13a Bathtub outflow pipe inlet 13b Water heater pipe connection part 15 Cassette holder 15a Knob part 16 Branch unit 17 Fixed part 17a Claw part

Continued on the front page (72) Inventor Motohiko Hattori 5-1-1 Koiehonmachi, Tokoname-shi, Aichi F-term in Inax Co., Ltd. (Reference) 3L036 AD31 3L037 DA02 DB08

Claims (2)

[Claims] 1. A purifying apparatus having a circulation port body having a suction port and a discharge port attached to a bathtub, and a circulation path having one end connected to the suction port of the circulation port body and the other end connected to the discharge port. In a piping structure of a bath tub in which a device is provided and a circulation pipe of a hot water supply device is connected in a circulation path of the purification device, in a circulation path of the purification device, upstream of a connection portion of a circulation pipe of the hot water supply device. A piping structure for a bathtub, wherein a check valve is provided. 2. A single circulation port body having three or four ports serving as a suction port and a discharge port is attached to a bathtub, and a circulation path of a purification device and a circulation pipe of a hot water supply device are connected to the circulation port body. A bathtub piping structure characterized by the following.