JP4388441B2 - Bathroom drain piping - Google Patents

Description

The present invention relates to a drainage pipe for draining a bathroom.

As shown in FIG. 5, in order to perform drainage in a bathroom provided with a conventional bathtub, a bathtub pan on which the bathtub is placed, and a washing pan provided adjacent to the bathtub pan, Drain piping is known.
The drainage pipe shown in FIG. 5 includes drainage devices such as a bathtub, a tub pan, and a wash basin described below, a drain trap member that processes the drainage of these drainage devices, a drainage elbow, and the like.
The bathtub is a box that is open at the top and has a drain outlet (hereinafter simply referred to as “tub drain outlet”) that drains water at the bottom. Block.
The bathroom floor is divided into a bathtub pan on which the bathtub is placed and a washing pan where the user of the bathroom washes the body. The bathtub pan has a drain elbow, and the washing pan has a drain trap member. However, the attachment port to which each is attached is provided in each lowest position.
The drain trap member is a general term for drainage devices having a function of preventing odors and pests from entering the indoor side from the sewage side, and has a drainage reservoir portion called sealed water inside, This sealed water prevents odors and pests from entering the indoor side.
Although this sealed drainage trap member is classified into several types according to the difference in configuration, the drain trap member employed in this conventional example is provided with a sealed water trough as described later. Called a trap.
The drain trap member used in the washing place of the conventional example of FIG. 5 is a member made of a substantially cylindrical rectangular body, attached to the attachment port of the washing place pan, and drainage of the washing place pan into which the drainage flows into the upper surface. A mouth (hereinafter simply referred to as a “washing pan drain”), and a deodorizing cylinder extending downward from the washing pan drain while maintaining watertightness (this deodorizing cylinder uses packing to Water-tightness to the washing pan drain outlet, but can be detached from the drain trap member as necessary), the bottom of the deodorizing cylinder is arranged inside, a sealed water bottle with an open top, The drainage that is provided on the side of the rectangular body and overflows the sealed water tank is discharged to the sewage side, and is provided on the side of the sealed water tank to introduce wastewater from other drainage devices into the sealed water tank. And a branch pipe portion.
The drainage elbow is a member attached to the bathtub pan mounting opening, and has a drainage port for the bathtub pan (hereinafter simply referred to as “float valve”) provided with a float valve for preventing a reverse flow from occurring on the bathtub pan on the upper surface. It is provided with a cylindrical outflow pipe that communicates with the branch pipe portion of the drain trap member and discharges the internal drainage into the sealed water bottle. . When the drainage elbow is connected to the sealed portion of the drainage trap member in this way, the sealed portion is also formed in the drainage elbow and has a trap function. The drainage elbow is connected to a bathtub drainage outlet and connected to a connecting pipe for discharging the drainage into the drainage elbow.

In the bathroom drain piping mentioned above,
1. When drainage occurs from the bathtub, the drainage flows into the drainage elbow from the drainage port of the bathtub via a drainage plug or pipe, and further passes through the outflow pipe, branch pipe, and drainage trap member. Is discharged to the sewage side from the aforementioned discharge port. In this drainage process, the drainage elbow has a float valve at the bathtub pan drain, so even if the drainage elbow is filled with drainage from the bathtub, the drainage may flow back from the bathtub pan drainage onto the bathtub pan. Absent.
2. When drainage occurs from the top of the bathtub pan, the drainage flows into the drainage elbow from the bathtub pan drainage port, and further passes through the outflow pipe, branch pipe part, drainage trap member, and finally from the aforementioned discharge port. It is discharged to the sewage side.
3. When drainage occurs on the washing basin pan, the drainage passes through the drain trap member from the washing basin drainage port, and is finally discharged from the above-described discharge port to the sewage side.

By the way, the bathroom is usually cleaned after use, but since a detergent is used for cleaning, a large amount of foam is mixed in the waste water after cleaning. At this time, the drainage of the tub pan and the wash basin did not become a big problem for the following reasons.
1. The top of the bathtub pan is covered with an apron member and is not directly cleaned, and the waste water from the bathtub or the washing place pan hardly flows, so that waste water containing bubbles does not occur. As a result, since the total amount of waste water containing bubbles is small, there is no problem in drainage.
2. A large amount of foam and drainage is generated on the washing pan, but the drainage flows directly into a drain trap member provided in the washing station. This drain trap member has a high wastewater treatment capacity, so even if a large amount of wastewater containing bubbles is generated, it flows into the drainage pipe on the sewage side instead of the branch pipe side. There is no.

However, with regard to drainage from the bathtub after washing, a major problem has been involved for the following reasons.
3. A large amount of foam and drainage is generated on the bathtub, but drainage flows into the drainage elbow through a drainage plug or pipe pipe from a small bathtub drainage port provided in the bathtub, and further through the outflow pipe and branch pipe section. To reach the drain trap member. The relatively thin drainage pipe must be moved long distances (compared to the washroom drainage etc.) until it reaches the drain trap member, so that the foamy drainage is completely drained from the drain outlet. I needed a lot of time.

In order to solve such problems, in the invention of Patent Document 2, a bulging portion is provided in a space above the piping on the piping, and this space is configured as a bubble storage space in which bubbles in the drainage are collected. .
Japanese Patent Laid-Open No. 3-260230 (page 4, FIG. 2) JP 2002-88844 (3rd page, FIGS. 1 and 4 and FIG. 2)

However, the conventional drainage pipe described above has the following problems.
In recent years, it has become necessary to lower the height of the bath straddle (height width from the floor of the washroom to the upper end of the bath) for barrier-free, but it is also necessary to secure the depth of the bath . In order to make these compatible, there is a strong tendency to reduce the gap between the upper surface of the bathtub pan and the bottom of the bathtub. However, in the bathroom piping structure as in Patent Document 2, the bulging portion constituting the bubble accumulation space protrudes upward, so that the upper end of the tub portion does not contact the bottom surface of the bathtub. A gap with the bottom of the bathtub must be secured, or the bubble pool space must be arranged at a position other than directly below the bathtub as shown in FIG. Alternatively, there was no choice but to make the bathtub / washing area smaller by the amount of foam storage space.

The present invention has been invented in view of the above problems, and in the drainage pipe of a bathroom provided with a bathtub, a bathtub pan, and a washing place pan, even when a large amount of foam is mixed in the drainage from the bathtub, The present invention was invented for the purpose of providing a bathroom drainage pipe that is well-foamed and that can have a low straddle height without reducing the bathtub / washing area.

1. The drainage pipe for a bathroom according to claim 1 of the present invention is a drainage pipe for a bathroom comprising a bathtub (1), a bathtub pan (2), and a washing pan (3), and at least the bathtub (1). In addition, an independent drain trap pipe is provided for the pipe of the bathtub pan (2) and the washing pan (3), and the drain trap pipe for treating the drain of the bathtub (1) has a trap portion (5 ) In the upper surface on the pipe from the drain port of the bathtub (1) to the downstream end of the trap part (5) and at a position lower than the sealing water height in the trap part (5). It is a drainage pipe of a bathroom characterized by protrudingly providing a bubble storage space (6) for storing water. The “trap section downstream end” herein is an expression indicating a portion located most downstream of the drainage pipe among the portions where the sealed water of the sealed drainage trap exists.

2. The drainage pipe for a bathroom according to claim 2 of the present invention is characterized in that in the drainage pipe described in the above paragraph 0009, an independent drain trap pipe is provided in each of the bathtub pan (2) and the wash basin pan (3). This is the drainage pipe of the bathroom.

3. The bathroom drainage pipe according to claim 3 of the present invention is the bathroom drainage pipe according to paragraph 0009 or paragraph 0010, wherein the bubble storage space (6) is used as the bathtub mounting surface (2a) of the bathtub pan (2). It is the drainage pipe of the bathroom characterized by providing below.

4). The bathroom drain pipe according to claim 4 of the present invention is the bathroom drain pipe according to any one of the above paragraphs 0009 to 0011, wherein the bathtub (1), the bathtub pan (2), and the washing pan (3 ) Drainage pipes in the bathroom, which are provided in an integral rectangular body.

5). The bathroom drain pipe according to claim 5 of the present invention is the bathroom drain pipe according to any one of the above paragraphs 0009 to 0012, wherein the drain pipe is provided with a bubble storage space (6) for storing drainage bubbles. This is a drainage pipe for a bathroom characterized by having a flat shape wider in the horizontal direction than in the vertical direction.

The bathroom drain pipe of the present invention has the following effects. In the first aspect of the present invention, even if a large amount of wastewater mixed with bubbles is discharged from the bathtub, bubbles are generated in the drainage trap pipe (drainage pipe provided with a trap portion for forming sealed water in the drainage pipe). Since the reservoir space is provided and the bubbles are stored in the bubble reservoir space, the bubbles on the bathtub flow extremely rapidly. Moreover, since the trap part was provided independently in the drainage piping of the bathtub, compared with the drainage piping of the conventional bathroom, the distance which a bubble moves became short and the drainage performance of foam improved more.
According to the second aspect of the present invention, since independent drain trap pipes are provided not only in the bathtub drain pipe but also in each of the bathtub pan and the washing pan, the reverse flow does not occur in the bathtub pan drain port. No need to prepare a float valve at the mouth.
According to the third aspect of the present invention, the drain trap pipe of the bathtub is provided independently of the other drain trap pipes, and the bubble accumulation space is provided below the bathtub mounting surface of the bathtub pan. It was possible to reduce the height of the tub straddling without reducing the washing area. Specifically, the drainage pipe of the bathtub is located on the upstream side of the drain trap pipe of the bathtub pan, or the gap between the bathtub mounting surface of the bathtub pan and the bottom surface of the bathtub, or around the bathtub as shown in FIG. Since it is no longer necessary to provide a bubble storage space, it is possible to lower the straddle height of the bathtub.
The present invention as set forth in claim 4 is provided with drain trap pipes for bathtubs, bathtub pans and washing pans in an integral rectangular body, so that even when there are a plurality of drain pipes, construction work is easy, The space required for the system can be made compact.
In this invention of Claim 5, the drainage trap piping of the bathtub which provides the bubble storage space which stores the bubble of drainage was made into the flat shape wider in the horizontal direction compared with the vertical direction, and height width is not so much. The volume of the bubble pool space can be increased without increasing the size.

In a bathroom composed of a bathtub (1), a bathtub pan (2), and a washing place pan (3), a drain trap pipe of the bathtub (1) is connected to a piping of the bathtub pan (2) and the washing place pan (3). Configure independently. Furthermore, on the upper surface of the drain trap pipe for treating the drainage of this bathtub (1), on the upper surface of the pipe from the drain port to the trap section (5) downstream end,
A bubble storage space (6) for storing the drainage bubbles is provided in a protruding manner.
In addition, in this drain trap pipe, if a separate drain trap pipe is also provided in the bathtub pan (2) and the wash basin pan (3), even if there is a large amount of drainage from either drain outlet, It is preferable that no backflow occurs.
Moreover, if the bubble storage space (6) provided in the drain trap pipe of the bathtub (1) is disposed below the bathtub mounting surface (2a) of the bathtub pan (2), the bathtub (1) / washing area is reduced in size. Without being able to reduce the straddle height of the bathtub (1), it is preferable.
In addition, if the drain trap pipes of the bathtub (1), the bathtub pan (2), and the washing pan (3) are provided in an integral rectangular body, the space required for the pipe can be made compact, which is preferable.
Further, when the drain trap pipe provided with the bubble storage space (6) for storing the drainage bubbles is formed in a flat shape which is wider in the horizontal direction than in the vertical direction, the bubble storage space (6) without increasing the height width so much. This is preferable because the volume of the can be increased.

Embodiments of the present invention will be described below with reference to the drawings.
The drainage pipe of the bathroom which employs the drainage trap member (7) including the trap part (5) of the present invention shown in FIG. 1 is a drainage device such as the bathtub (1) and the bathtub pan (2) described below. And a drainage pipe provided with a drain trap member (7) for treating the drainage of these drainage devices.
The bathtub (1) is a box body that is open upward and includes a bathtub drain (4) that drains water at the bottom, and the bathtub drain (4) is plugged (not shown), if necessary. Block with.
The bathtub pan (2) is a flat plate-like member that forms a bathtub mounting surface (2a) on which the bathtub (1) is mounted on the upper surface, and has an attachment port to which the bathtub pan drainage port (12) is attached at the top. Provided in the lower position.
The washing place pan (3) is also a flat member that forms a washing place where the user of the bathroom is washing the body, and is provided adjacent to the bathtub pan (2), and the washing place drain port (13) is provided. The attachment port to be attached is provided at the lowest position. Moreover, between the bathtub (1) and the washing place bread (3), the apron member (8) which conceals the bathtub bread (2) upper surface from the washing place bread (3) from the bathtub (1) back surface is provided.
As shown in FIG. 2, the drain trap member (7) functions as a sealing portion for the bathtub (1) and the bathtub pan (2), and has a trap portion (5 ) Are arranged side by side, and further, a trap part (5) in a form called a running trap is provided above the trap part (5), which functions as a sealing part of the washing area pan (3). Consists of. The tubes constituting the trap portion (5) of the bathtub (1) and the trap portion (5) of the bathtub pan (2) are arranged side by side as described above, and the height and width of the tubes are the same. However, the width of both is not uniform, and as shown in FIG. 3 and FIG. 4, the tubular body forming the trap portion (5) of the drainage pipe of the bathtub (1) is more suitable for the bathtub pan (2). It has a flat shape that is wider than the tube forming the trap portion (5) of the drainage pipe and wider in the horizontal direction than in the vertical direction. Further, of this trap portion (5), a tubular body that forms a sealed portion of the pipe trap of the bathtub (1), and is directed upward on the wall surface above the portion where the tubular body is disposed in the lateral direction. A protruding portion protruding in this manner is formed, and the inside of the protruding portion is configured as a bubble storage space (6) for storing drainage bubbles.
Further, these drain trap members (7) are formed by integrally forming the upper surface of the pipe trap and the bottom surface of the running trap, for example, on the adjacent wall surfaces of the two pipe traps or the overlapping portion of the running trap and the pipe trap. A plurality of members molded as a body are also connected and fixed in advance by a technique such as adhesion in a factory or the like. At the time of construction of the bathroom, each of the bathtub (1), the bathtub pan (2), and the washing pan (3) Three drain trap pipes including the trap portion (5) are provided as an integral member in an integral rectangular body.
Moreover, about these drain trap piping comprised by each three piping, the upstream side edge part of drain trap piping of bathtub pan (2) and washing-room pan (3) is bathtub pan (2) by the flange member (11). ) And the attachment hole provided in the washing place pan (3). Moreover, as shown in FIG. 2, the upstream end of the drain trap pipe of the bathtub (1) passes through the bathtub pan drain (12) from the drain plug (14) provided in the bathtub drain (4). It is disposed in the drain trap member (7) so as to pass through.

Each member, such as a bathroom provided with the bathtub (1), the bathtub pan (2), the washing place pan (3), and the drain pan member (7) configured as described above, is constructed as follows. .
First, a drain pipe on the sewage side is connected to a discharge port (15) provided on a side surface of the drain trap member (7). Next, the upstream end of the drain trap pipe of the bathtub pan (2) of the drain trap member (7) is connected to the lower surface of the attachment port of the bathtub pan (2) using the flange member (11). Similarly, the upstream end of the drainage trap pipe of the washing ground pan (3) is connected to the lower surface of the attachment port of the washing ground pan (3) using the flange member (11). . At this time, the bubble storage space (6) of the drain trap member (7) is disposed below the bathtub mounting surface (2a) of the bathtub pan (2) due to the positional relationship of the members.
Next, after connecting the drain plug (14) to the drain port of the bathtub (1), the bathtub (1) is placed on the bathtub mounting surface (2a) of the bathtub pan (2), and the lower end of the drain plug (14) is It positions and positions so that it may contact | abut to the upstream edge part of the drain piping of the bathtub (1) in the drain opening of a bathtub pan (2).
Furthermore, between the bathtub (1) and the washing pan (3), an apron member (8) that covers the upper surface of the bathtub pan (2) from the back of the bathtub (1) from above the washing pan (3) is attached, and the bathroom drainage pipe Is completed.

In the bathroom drain pipe configured as above,
1. When drainage occurs from the bathtub (1), the drainage passes through the drainage pipe of the bathtub (1) formed in the drainage plug (14) and the drainage trap member (7) from the bathtub drainage port (4). Finally, it is discharged to the sewage side from the discharge port (15) provided on the side surface of the drain trap member (7).
2. When drainage is generated from the bathtub pan (2), the drainage passes through the drain trap pipe of the bathtub pan (2) formed in the drain trap member (7) from the bathtub pan drainage port (12), and finally Specifically, the water is discharged from the discharge port (15) provided on the side surface of the drain trap member (7) to the sewage side.
3. When drainage occurs on the washing basin pan (3), the drainage passes through the drainage trap pipe of the washing basin pan (3) formed in the drainage trap member (7) from the washing basin drainage port (13), and finally Specifically, the water is discharged from the discharge port (15) provided on the side surface of the drain trap member (7) to the sewage side.

In addition, in the drainage pipes of the above bathroom, even if there is a large amount of drainage at any of the drains of the bathtub (1), the bathtub pan (2), or the washing pan (3), each drain trap pipe is independent. Therefore, there is no back flow at other drains.

Further, in the above-described bathroom drainage pipe, even when the bathtub (1) is cleaned and a large amount of foamed wastewater is generated from the bathtub (1), the following 1. 2. Due to the effect, the foam can be processed quickly.
1. Since the drain trap pipe of the bathtub (1) is provided independently of the drain pipe of the bathtub pan (2) and the washing place pan (3), the waste water mixed with foam is removed from the bathtub pan (2) and the washing place pan (3 ) There is no backflow.
2. On the drain trap pipe of the bathtub (1), a protruding portion is provided in the space above the pipe, and this space is used as a bubble storage space (6) where bubbles during drainage are collected. Processing is done quickly.

In addition, since the bubble accumulation space (6) is disposed below the bathtub mounting surface (2a) of the bathtub pan (2), 2. While having the effect of the above, it is possible to obtain a configuration in which the height of the straddle of the bathtub (1) is reduced without reducing the bathtub (1) / washing area.

Although the embodiment of the present invention is as described above, the drain trap of the present invention is not limited to the above-described embodiment, and can be appropriately changed without departing from the matters described in the claims.
For example, although the drain trap pipes of the bathtub (1), the bathtub pan (2), and the washing pan (3) are provided independently in the above embodiment, the drain piping of the bathtub pan (2) is the washing pan (3 The trap part (5) connected to the upstream of the drainage pipe of the washing pan and the drainage pipe of the washing pan (3) is also used as the bathtub pan (2) and the washing pan (3). The effect of claim 1 can be obtained.

It is sectional drawing which shows the drain piping of the bathroom of this invention. It is sectional drawing of the drain trap member employ | adopted in FIG. It is A-A 'sectional drawing of the drain trap member of FIG. FIG. 3 is a B-B ′ sectional view of the drain trap member of FIG. 2. It is sectional drawing which shows the drainage piping of the conventional bathroom.

DESCRIPTION OF SYMBOLS 1 Bathtub 2 Bathtub pan 2a Bathtub mounting surface 3 Washing pan 4 Bathtub drain 5 Trap part 6 Foam storage space 7 Drain trap member 8 Apron member 9 Bath trap pipe 10 Bath pan trap pipe 11 Flange member 12 Bath pan drain 13 Washing place Pan drain port 14 Drain plug 15 Discharge port

Claims (5)

Bathtub (1),
Bathtub pan (2),
Washroom bread (3),
A drain pipe for a bathroom consisting of
At least the bathtub (1) is provided with a drain trap pipe independent of the bathtub pan (2) and the washing pan (3), and
The drain trap pipe for treating the drainage of the bathtub (1) includes a trap part (5) for sealing water,
On the upper surface on the piping from the drain outlet of the bathtub (1) to the trap portion (5) downstream end , and at a position lower than the sealing water height in the trap portion (5),
A drainage pipe for a bathroom, characterized in that a foam storage space (6) is provided for storing the foam of drainage. In the drainage pipe according to claim 1,
A drainage pipe for a bathroom, characterized in that an independent drainage trap pipe is provided in each of the bathtub pan (2) and the washing pan (3). In the bathroom drainage pipe according to claim 1 or 2,
A drainage pipe for a bathroom, wherein the bubble storage space (6) is provided below the bathtub mounting surface (2a) of the bathtub pan (2). In the bathroom drain pipe according to any one of claims 1 to 3,
A drainage pipe for a bathroom, characterized in that drainage pipes for the bathtub (1), the bathtub pan (2), and the washing place pan (3) are provided in an integral rectangular body. In the drainage pipe of the bathroom according to any one of claims 1 to 4,
A drainage pipe for a bathroom, characterized in that the drainage pipe provided with a bubble storage space (6) for storing drainage foam has a flat shape wider in the horizontal direction than in the vertical direction.

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