JPH09195348A - Drain construction of bathroom - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make it possible to easily form an accessible bathroom capable of easily taking a bath and, at the same time, to provide a drain construction capable of preventing the generation of bad smell from a bathtub installation side of a waterproof floor pan and easily executing drainage treatment on the bathtub installation section. SOLUTION: A drainage section 21 provided in the bottom of a bathtub 2 is connected to a drain outlet 4 provided in a bathtub installation section 11 side of a waterproof floor pan 1 in opposition to the drainage section 21 in a tightly closed state. Drainage on the bathtub installation section 11 passes through close to a washing place section 12 side, and a water catchment section 5 preventing a back current of drainage to the bathtub installation section 11 side is provided. Then, the water catchment section 5 is linked with a drain 7 for connecting the drain outlet 4 and a drainage trap 6 downward of the waterproof floor pan 1.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention installs drainage on a bath floor installation section of a waterproof floor pan and drainage from a bathtub installed on the bathtub installation section below a wash floor section of the waterproof floor pan. It relates to the structure of the drainage channel of the bathroom leading to the drainage trap.

[0002]

2. Description of the Related Art In a waterproof floor pan of a bathroom unit, a bathtub installation section for installing a bathtub is formed next to a washroom section that forms a washroom, and a caulking material installed between the bathtub and the inner wall of the bathroom. Even if it is damaged, etc., this bathtub installation prevents leakage of water under the floor.
In this case, the drainage of the waterproof floor pan including the drainage from the bathtub is sent to the drain trap installed below the washing part of the waterproof floor pan, and then discharged to the outside together with the drainage of the washing part. To be done.

FIG. 6 shows an example of a drainage structure of a bathroom around such a waterproof floor pan (JP-A-3-260230). In the figure, a bathtub 110 is installed on the bathtub installation section 100 of the waterproof floor pan.
In the washing floor portion 101 of the waterproof floor pan adjacent to 00, the drain trap 120 is attached to the lower surface side below the drain port 101a. And the drainage part 110a of the bathtub 110
The drainage hole portion 100a of the bathtub installation portion 100 is connected by the first drainage pipe 121, and the drainage hole portion 100 of the bathtub installation portion 100 is connected.
The second drain pipe 122 connects the a and the drain trap 120. In addition, the drainage hole portion 100a of the bathtub installation portion 100
A backflow prevention device 123 is attached to the backflow prevention device 123 that allows the drainage on the bathtub installation section 100 to pass through but prevents the drainage in the second drain pipe 122 from flowing back to the bathtub installation section 100 side.

In such a drainage channel structure, the drainage in the bathtub 110 is passed through the first drainage pipe 121, the backflow preventive device 123, and the second drainage pipe 122 to the drainage trap 120 side, and then the washing place. The drainage in the bathtub 110 is discharged to the outside together with the drainage on the part 101 side.
Odor is prevented from being generated on the side of the bathtub installation portion 100, as compared with the case where the odor is directly flown upward. In addition, the water leaked from the gap between the bathtub 110 and the inner wall of the bathroom, etc.
Backflow prevention device 1 for drainage 100a
23 through the second drain pipe 122.
It is discharged to the 0 side.

On the other hand, the first and second drain pipes 121, 12
When the inside of 2 is filled with the drainage of the bathtub 110 side, this drainage may flow back from the drainage part 100a side to the bathtub installation part 100 side.
Blocked by 3.

[0006]

However, in the above conventional drainage structure for a bathroom, the first drain pipe 121 is provided in the bathtub 1.
The bathtub 110 and the bathtub installation unit 100 are disposed below the bathtub 110.
Since the gap t therebetween becomes large, the straddling height H from the washing place 101 side to the bath 110 side becomes large. For this reason, such a drainage channel structure has a problem that the bathroom is difficult for the elderly and the like to take a bath.

On the other hand, a large step is provided between the bathtub installation portion 100 and the washroom portion 101 of the waterproof floor pan, and the height H of the squeeze
Although it may be possible to reduce the size of the bathroom, in the case of a condominium where the distance between the bathroom installation surface and the building floor surface can be kept small, the floor of the dressing room and the bathroom side (doorway) And the difference in level will become large. Therefore, in this case, there is a problem that the bathroom becomes difficult for the elderly and the like to come and go.

In view of the above points, the present invention makes it possible to easily form a bathroom that is easy to bathe in and out of, and
An object of the present invention is to provide a drainage structure for a bathroom, which can prevent the generation of odor from the side of the bathtub installation section of the waterproof floor pan and can easily treat the wastewater on the bathtub installation section.

[0009]

According to a first aspect of the present invention, there is provided a waterproof floor for drainage on a bathtub installation portion of a waterproof floor pan and drainage from a bathtub installed on the bathtub installation portion. In the drainage structure of the bathroom leading to the drain trap installed below the washing area of the bread, the drainage section was provided at the bottom of the bathtub, and facing the drainage section, it was provided on the side of the bath floor installation section of the waterproof floor pan. In addition to connecting to the drainage hole in a sealed state, a drainage part is provided near the washing part of the bathtub installation part to allow drainage on the bathtub installation part, but to prevent backflow of drainage to this bathtub installation part side. In addition, the water collecting portion is communicated with the drainage channel that connects the drainage hole portion and the drainage trap on the lower side of the waterproof floor pan.

According to the present invention, since the drainage portion of the bathtub and the drainage hole portion of the bathtub installation portion can be directly connected to each other, it is not necessary to arrange an extra drainage pipe below the bathtub, and accordingly, the bathtub and the waterproof floor are correspondingly provided. The distance to the bread can be reduced. For this reason, the distance between the upper surface of the bathtub and the upper surface of the washbasin (the straddle height) can be increased without increasing the level difference between the entrance of the bathroom on the washbasin side of the waterproof floor pan and the floor of the dressing room adjacent to the bathroom. ) Can be made smaller.

Further, according to the present invention, water leaking from the periphery of the bathtub to the bathtub installation portion side of the waterproof floor pan can be drained from the drainage channel to the drain trap side after being collected in the water collection portion. Wastewater treatment is also easy. In this case, since the water collecting portion is provided near the washing place portion of the bathtub installation portion, the water collecting portion can be easily cleaned from the washing place portion side. Of course, in the present invention, since the drainage in the bathtub does not flow over the bathtub installation portion of the waterproof floor pan, the drainage does not cause odor on the bathtub installation portion side.

[0012]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a cross-sectional view of the lower side of a bathroom provided with a drainage structure according to an embodiment of the present invention, and FIG. 2 is a plan view of the bathroom around a waterproof floor pan.

In FIG. 2, reference numeral 1 is a waterproof floor pan for forming the bathroom Y, which is installed in the lower part of the bathroom installation space. The waterproof floor pan 1 is divided into a left-side bathtub installation portion 11 and a right-side washroom portion 12 by a central bank portion 10 protruding upward, and a wall panel which is an inner wall of the bathroom Y on the outer peripheral portion. A wall mounting portion 13 to which (not shown) is attached is formed. A door frame W (see FIG. 1) is attached to the wall-mounting portion 13 on the undressing room D side to form an entrance / exit portion Y1 of the bathroom Y.

In FIG. 1, reference numeral 2 is a bathtub installed on the bathtub installation portion 11 of the waterproof floor pan 1. This bathtub 2
The outer edge portion 20 on the upper side is attached so as to be in close contact with the above-mentioned wall panel via a caulking material, and the leakage of hot water around the bathtub 2 to the waterproof floor pan 1 side is prevented. . At the bottom of the bathtub 2, a drainage nozzle 21 as a drainage unit for discharging the hot water to the outside is formed so as to project downward. The drain nozzle 21 has a drain plug 22 on the upper side.
It is closed by and has a garbage receiver 2 on the lower side.
3 is attached. Further, an apron portion 3 is easily attached and detached between the outer edge portion 20 of the bathtub 2 and the bank portion 10 of the waterproof floor pan 1. By the apron portion 3,
The side parts of the bathtub 2 are not visible from the outside.

The bathtub installation portion 11 of the waterproof floor pan 1 is shown in FIG.
2, two openings are formed near the bank portion 10, and the drain hole portion 4 into which the drain nozzle 21 is inserted is attached around the opening formed at a position facing the drain nozzle 21 of the bathtub 2. The bank section 10
Around the other opening close to, a water collecting portion 5 for collecting water leakage on the bathtub installation portion 11 is attached. In addition, in the washing part 12 of the waterproof floor pan 1, a slightly large opening is formed on the bank part 10 side so as to be aligned with the two openings on the side of the bathtub installation part 11 described above. A trap 6 is attached. Then, below the waterproof floor pan 1, a drainage path 7 is provided from the drainage hole portion 4 to the drainage trap 6.
Is provided, and the water collecting section 5 communicates with the drainage channel 7.

As shown in FIG. 3, the drainage hole portion 4 includes a nozzle body 40, a tightening ring 41, and a ring packing 4.
2 and a tubular packing 43. The nozzle body 40 has an outer collar 40a inside the opening of the bathtub installation portion 11.
The outer screw part 40b at the bottom
Then, the tightening ring 41 is screwed in via the ring packing 42 to be attached to the waterproof floor pan 1. Then, as shown in FIG. 1, the drain nozzle 21 of the bathtub 2 is inserted inside the upper portion of the nozzle body 40 via a cylindrical packing 43, and the drain hole portion 4 and the drain nozzle 21 are inserted. And are connected in a sealed state.

As shown in FIG. 4, the water collecting portion 5 includes a water collecting portion main body 50, a plate 51, a float plate 52, a tightening ring 53, a ring packing 54, and a drain pipe 55. It is configured. The water collecting portion main body 50 is inserted into the outer peripheral edge 50a of the water collecting portion 50 until the upper outer edge 50a thereof extends into contact with the periphery of the opening of the bathtub installation portion 11, and then the lower external thread portion 50 is inserted.
The tightening ring 53 is screwed into b through the ring packing 54, so that it is attached to the waterproof floor pan 1. A ring groove 50c for attaching a perforated plate 51 is formed at an upper end of a vertically penetrating hole in the water collecting body 50, and a float plate 52 is movable upward below the ring groove 50c. A step portion 50d to be placed on is formed. Further, a drain pipe 55 connected to the drainage channel 7 is attached to the lower portion of the water collecting unit body 50. An inflow groove 50e is formed in the step portion 50d of the water collecting body 50.

Here, since the float plate 52 is usually placed on the stepped portion 50d by its own weight, drainage (leakage) on the bathtub installation portion 11 passes through the opening 51a of the plate 51, and
It flows into the drainage channel 7 through the inflow groove 50e beside the float plate 52 and the drainage pipe 55. On the other hand, drainage channel 7 and drainage channel 5
When the inside of 5 is filled with drainage, the float plate 52 is pushed up by the buoyancy force to the side of the plate 51, and the opening 51 of the plate 51 is opened.
Block a. Therefore, the drainage in the drainage channel 7 flows in the drainage channel 7 to the drainage trap 6 side without flowing back to the bathtub installation portion 11 side.

As shown in FIG. 5, the drain trap 6 comprises a trap body 60, a cover portion 61, a flange portion 62, an inner pipe portion 63, a perforated plate 64 and a U packing 65. There is. In the trap body 60, a water reservoir 60a having a predetermined height is formed in the center on the lower side, an inlet 60b is formed so as to communicate with the lower portion of the water reservoir 60a, and an upper portion of the water reservoir 60a is formed. An outlet portion 60c is formed so as to communicate with the. A cover 61 having an internal thread 61a formed around the central opening is attached to the upper portion of the trap body 60.

The flange portion 62 has an outer edge portion 62a on the upper end side.
Is placed on the U-packing 65 attached around the opening of the washing place 12, and the central portion is covered with the cover portion 61.
Is dropped into the trap body 60 through the opening of the trap body 60, and an inner pipe portion 63 that is inserted into the water reservoir portion 60a of the trap body 60 is supported around the lower opening of the center portion. On the outer peripheral surface of the central portion of the flange portion 62, a male screw portion 62b screwed into the female screw portion 61a of the cover portion 61 is formed. Therefore, the drain trap 6 covers the male screw portion 62b of the flange portion 62 with the cover portion 6
When the U packing 65 is pressed by the flange portion 62 and the cover portion 61 by being screwed into the female screw portion 61a of No. 1, the waterproof floor pan 1 is attached to the washing place portion 12 side.
The perforated plate 64 having a large number of openings 64a is placed on the upper portion of the flange portion 62 such that the upper surface thereof is flush with the upper surface of the outer edge portion 62a.

The drainage channel 7 is formed horizontally from the drainage hole portion 4 toward the drainage trap 6 side, and includes the upper and lower pipes 70, L.
It is composed of a pipe 71, horizontal pipes 72 and 73, and a T pipe 74.

As shown in FIG. 1, below the drainage channel 7, a building base K for forming a bathroom is arranged with a slight gap L1, and at the dressing room D side, A floor surface D1 is formed slightly above the building base K.

Next, the function of the drainage channel structure is formed from the drainage nozzle 21 of the bathtub 2 to the drainage trap 6 by the drainage hole portion 4 on the waterproof floor pan 1 side, the water collecting portion 5, and the drainage channel 7. The effect will be described.

The water discharged from the washing place 12 of the waterproof floor pan 1 at the time of bathing flows over the upper surface of the washing place 12, and from the plate 64 of the drain trap 6 through the inner pipe 63 to the trap body. After being stored in the water reservoir 60a of 60, the water reservoir 60a overflows and is discharged to the outside of the drain trap 6 through the outlet 60c. In this case, foreign matter such as hair is caught by the eye plate 64. Also, the apron section 3
From the surrounding space and the deteriorated or damaged portion of the caulking material between the bathtub 2 and the wall panel, the bathtub installation portion 11 of the waterproof floor pan 1
Even if water leaks to the side, after this leaked water flows on the upper surface of the bathtub installation section 11 from the plate 51 of the water collection section 5 to the side of the float plate 52 and then to the drainage channel 7 side. Is discharged to the drain trap 6 side.

Furthermore, the drainage in the bathtub 2 after the bathing is
When the drain plug 22 is opened, it flows from the drain nozzle 21 through the drain hole portion 4 to the drain path 7 side, and then is drained from the drain trap 6 to the outside. In this case, since the drainage channel 7 and the water collecting section 5 are filled with the drainage, the drainage in the water collecting section 5 tries to flow backward to the bathtub installation section 11 side of the waterproof floor pan 1, but the float of the water collecting section 5 is used. The plate 52 is the opening 51a of the plate 51.
Therefore, backflow of drainage in the drainage channel 7 does not occur.

On the other hand, in this drainage channel structure, as shown in FIG. 1, the drainage hole portion 4 on the waterproof floor pan 1 side is provided at a position facing the drainage nozzle 21 of the bathtub 2, and the drainage hole portion 4 is provided in the drainage hole portion 4. Since the drainage nozzle 21 is directly inserted, no drainage pipe is arranged on the lower surface side of the bathtub 2, and the distance L2 between the lower surface on the bottom side of the bathtub 2 and the upper surface of the bathtub installation section 11 is reduced. can do. For this reason, the distance between the upper surface 20a of the bathtub 2 and the upper surface of the bathtub installation portion 11 (hereinafter referred to as straddle height L3) does not have to be higher than the upper surface of the washbasin portion 12 of the waterproof floor pan 1 above the upper surface of the bathtub installation portion 11. )
Can be made smaller, and the distance L4 between the upper surface of the bathtub installation portion 11 and the upper surface of the building base K can also be made small. Therefore, in this drainage channel structure, as shown in FIG. 1, the distance L5 between the upper surface W1 of the threshold portion of the door frame W and the floor surface D1 of the dressing room D can be reduced, and the walking function is deteriorated. However, it is possible to easily take a bath in and out of the bathroom Y.

Further, in this drainage structure, the bathtub installation section 1
Since the water collecting part 5 for treating the water leakage on the 1 side is arranged at a position near the apron part 3 on the side of the bathtub 2, it is easy to clean the water collecting part 5 by removing the apron part 3. Can be done. That is, the plate 51 of the water collecting section 5
Since foreign matter such as hair contained in the leaked water is caught, it is necessary to clean the eye plate 51, but this work can be easily performed, and due to the foreign matter and the like,
If the movement of the float plate 52 becomes insufficient, it is necessary to clean the area around the float plate 52, but this work can be performed easily.

Further, in this drainage channel structure, since the drainage in the bathtub 2 is not drained onto the bathtub installation portion 11 of the waterproof floor pan 1, no odor is generated in the bathtub installation portion 11. In this case, the leaked water flows on the bathtub installation part 11, but since the amount is small, this leaked water causes the bathtub installation part 11 to leak.
There is almost no odor.

[0029]

According to the invention described in claim 1 of the present invention, the drainage on the bathtub installation portion of the waterproof floor pan and the drainage from the bathtub installed on the bathtub installation portion are controlled by the waterproof floor pan. In the drainage structure of the bathroom leading to the drain trap installed below the washroom part, the drainage part provided at the bottom of the bathtub,
The drainage hole facing the drainage section is connected to the drainage hole provided on the bathtub installation section side of the waterproof floor pan in a sealed state, and the drainage on the bathtub installation section is passed to the washbasin section side of the bathtub installation section. , A drainage part was installed to prevent backflow of drainage to the bathtub installation part, and the drainage part was connected to the drainage channel connecting the drainage hole part and the drainage trap on the lower side of the waterproof floor pan. Therefore, it is possible to easily form a bathroom that is easy to bathe in and out, and at the same time, it is possible to prevent the generation of odor from the side of the bathtub installation part of the waterproof floor pan, and to easily treat the wastewater on the bathtub installation part. be able to.

[Brief description of the drawings]

FIG. 1 is a sectional view showing a drainage structure of a bathroom according to an embodiment of the present invention.

FIG. 2 is a plan view around a waterproof floor pan of a bathroom.

FIG. 3 is an enlarged cross-sectional view around a lower portion of a bathtub and a drain hole portion of the drainage channel structure shown in FIG.

FIG. 4 is an enlarged cross-sectional view around a water collecting portion of the drainage channel structure shown in FIG.

FIG. 5 is an enlarged cross-sectional view around the drain trap of the drainage channel structure shown in FIG.

FIG. 6 is a view showing a conventional drainage structure of a bathroom.

[Explanation of symbols]

 1 Waterproof Floor Pan 2 Bathtub 4 Drain Hole 5 Water Collection 6 Drain Trap 7 Drain 11 Bathtub Installation 12 Washing Room 21 Drain Nozzle (Drain)

Claims (1)

[Claims] 1. A bathroom that guides drainage on a bathtub installation portion of a waterproof floor pan and drainage from a bathtub installed on the bathtub installation portion to a drainage trap installed below the washing floor portion of the waterproof floor pan. In the drainage structure, the drainage portion provided at the bottom of the bathtub and the drainage hole portion provided at the bathtub installation portion side of the waterproof floor pan facing the drainage portion are connected in a sealed state. A drainage part is provided near the washing place part of the bathtub installation part, but a drainage part for preventing backflow of drainage to the bathtub installation part side is provided, and the drain hole part and A drainage structure for a bathroom, characterized in that the drainage channel connecting the drainage trap to the lower side of the waterproof floor pan is connected to the water collecting section.