JPH0633020Y2 - Bathroom unit bathtub drainage structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a bathtub drainage structure of a bathroom unit.

<Prior Art> Conventional bathtub drainage structures for bathroom units include those shown in FIGS. 4 and 5. The structure shown in FIG. 4 is of the indirect drainage type, in which the bathtub a is placed on the waterproof pan b, and the drainage of the bathtub a is discharged onto the waterproof pan b to form the same trap c as the drainage at the washing place. It is designed to be dropped (see, for example, Japanese Utility Model Publication No. 56-13422). Also, the fifth
The structure shown in the figure is of a direct drainage type, in which the drainage pipe e is directly connected to the bathtub drainage fitting d provided at the bottom of the bathtub a,
The drainage of the bathtub a is directly drained by a drainage pipe e (for example, see Japanese Utility Model Publication No. 62-35728).

<Problems to be Solved by the Invention> However, the conventional drainage system has the following problems.

That is, in the former indirect drainage system, the water in the bathtub a can be drained only by placing the bathtub a on the waterproof pan b, so that there is an advantage that the drainage path can be secured very easily, but on the waterproof pan b. Not only can cleanliness not be maintained due to the buildup of scale, dust, mold, etc., but there are also problems such as the generation of strange odors.

Further, the latter direct drainage system does not cause a problem like the indirect drainage system, but when the caulking between the bathroom inner wall f and the bathtub a is insufficient, the hot water overflowing from the bathtub a is discharged to the underfloor g. There is a risk that water will leak, moisture will be accumulated, and floor materials will rot. Further, in the case of a bathtub with an apron, there is a problem that it is difficult to secure a working space for pipe connection.

The present invention has been made in view of such circumstances, and a bathtub of a bathroom unit in which there is almost no offensive odor due to adhesion of scale, dust, mold, etc. The purpose is to provide a drainage structure.

<Means for Solving the Problems> The present invention adopts the following configurations in order to achieve the above object.

That is, in the bathtub drainage structure of the bathroom unit of the present invention,
While attaching a flexible bathtub drainage pipe to the bathtub drainage fitting provided at the bottom of the bathtub, the waterproof pan is provided with a drainage recess, and this drainage recess is a receptacle against which the bathtub drain pipe abuts on its peripheral surface. The seat is provided with drainage holes at the bottom thereof, and a draining groove is formed from the upper surface of the waterproof pan across the receiving seat to communicate with the drainage holes.
The bath drain pipe is seated on the receiving seat, and the external drain pipe is connected to the drain hole through an external drain fitting in the drain recess.

<Operation> According to the above configuration, the drainage of the bathtub flows from the drainage fitting of the bathtub, through the drainage pipe of the bathtub, and through the drainage hole of the recess for drainage,
Furthermore, it is discharged to the outside from the external drainage fitting through the drainage pipe.

Therefore, basically, the drainage of the bathtub is not discharged onto the waterproof pan, so that the scale or mold is unlikely to adhere to the waterproof pan, and the generation of the offensive odor can be prevented for a long time.

Even if the caulking between the inner wall of the bathroom and the bathtub is insufficient and the hot water that overflows from the bathtub flows out along the inner wall of the bathtub, the drainage pipe and drainage hole in the drainage recess provided in the waterproof pan will drain the drainage pipe. No water leaks to the underfloor because it is discharged through the.

<Embodiment> FIG. 1 is a longitudinal sectional view of a bathroom unit according to an embodiment of the present invention.
FIG. 2 is an enlarged vertical sectional view showing a bathtub drainage structure portion of the bathroom unit, and FIG. 3 is a perspective view showing a drainage recess partially cut away.

In these figures, 1 is a bathtub and 2 is a waterproof pan on which the bathtub 1 is placed. A bathtub drain fitting 4 is attached to the bottom of the bathtub 1, and one end of a flexible bathtub drain pipe 6 is fixed to the bathtub drain fitting 4 with a fixture 8. In this example, the bathtub drain pipe 6 is composed of a skirt-shaped rubber hose whose lower portion is expanded, but a plastic hose is also applicable.

On the other hand, the waterproof pan 2 is formed with a drainage recess 10 that fits with the above-mentioned bathtub drainage pipe 6, and the entire bottom plate of the waterproof pan 2 is formed so as to be inclined downward toward the drainage recess 10. . Further, as shown in FIG. 3, the drain recess 10 has a receiving seat 11 for the bathtub drain pipe 6,
Grooves 12 for water drainage are provided at a plurality of locations on the circumferential surface,
Further, a drainage hole 14 is formed at the bottom. And
The water drain groove 12 communicates with the drain hole 14 across the receiving seat 11 from the upper surface of the waterproof pan 2, the bath drain pipe 6 is seated in the receiving seat 11, and the external drain metal fitting 16 is inserted into the drain hole 14. It is fixed and an external drain pipe 18 is connected to the external drain fitting 16.

In addition, 20 is an inner wall of the bathroom, and 22 is a washing pan side waterproof pan. The space between the inner wall 20 of the bathroom and the bathtub 1 is sealed with a caulking material.

In the above configuration, when the bathroom unit is installed, after connecting the external drain pipes 18 to the waterproof pan 2 and the washroom-side waterproof pan 22 via the external drain fittings 16, respectively, the bath drain fitting 4 is attached to the bottom of the bathtub 1. Attach the bathtub drain pipe 6. And when placing the bathtub 1 on the waterproof pan 2,
The bathtub drain pipe 6 is inserted into the drain recess 10. In this case, since the bathtub drainage pipe 6 is flexible, the bottom of the bathtub drainage pipe 6 can be reliably brought into contact with the receiving seat 11 of the drainage recess 10 even when the installation position of the bathtub 1 is slightly displaced. Is. As a result, a drainage path communicating from the bathtub 1 to the external drainage pipe 18 is formed. Further, the drainage groove 12 has a gap 24 without being blocked by the bathtub drain pipe 6.

Therefore, the drainage of the bathtub 1 flows from the bathtub drainage fitting 4 to the drainage recess 10 through the bathtub drainage pipe 6, and is further discharged from the external drainage fitting 16 to the outside via the external drainage pipe 18. Therefore, the bathtub 1 is basically placed on the waterproof pan 2.
Since the waste water is not discharged, it becomes difficult for the scales and mold to adhere to the waterproof pan 2, and the generation of offensive odor can be prevented for a long time.

In addition, the interior wall 20 of the bathroom is deteriorated due to deterioration or peeling of the caulking material.
There is a gap between the bathtub 1 and the water, and even if water in the bathtub 1 invades and flows out onto the waterproof pan 2, the bottom surface of the waterproof pan 2 is inclined toward the drainage recessed portion 10, Flows concentratedly in the drainage recess 10, flows into the drainage hole 14 through the drainage groove 12, and is discharged to the outside from the external drainage pipe 18 via the external drainage fitting 16. Therefore, no water leaks under the floor.

Further, when the external drainage pipe 18 is temporarily clogged, drainage flows back to the upper surface of the waterproof pan 2 through the drainage hole 14 and the drainage groove 12 of the drainage recess 10, so that the sewage enters the bathtub 1. It is hygienic without spurting. Moreover, since this backflowing water is received by the waterproof pan 2, not only does it unexpectedly leak under the floor, but if the clogging of the external drainage pipe 18 is cleared, the water on the waterproof pan 2 will immediately Drain groove 1 of drainage recess 10
2 is drained toward the external drainage pipe 18 through the drainage hole 2 and the drainage hole 14, so that the contaminated water flowing back onto the waterproof pan 2 does not unnecessarily stay.

<Effects of the Invention> According to the present invention, basically, the drainage of the bathtub is not discharged onto the waterproof pan, so that the scale or mold is not attached to the waterproof pan, and the drainage is not likely to stay unnecessarily. Therefore, the generation of offensive odor can be prevented for a long period of time. Moreover, excellent effects such as no problem of water leakage under the floor are exhibited.

[Brief description of drawings]

1 to 3 show an embodiment of the present invention. FIG. 1 is a vertical sectional view of a bathroom unit, and FIG. 2 is an enlarged vertical sectional view of a bathtub drainage structure portion of the bathroom unit. FIG. 3 is a perspective view showing the drainage recess with a part thereof cut away. Further, FIGS. 4 and 5 show a conventional example.
The figure shows a vertical sectional view of a bathroom unit that uses an indirect drainage system.
FIG. 5 is a vertical sectional view of a bathroom unit adopting the direct drainage system. 1 ... tub, 2 ... waterproof pan, 4 ... tub drainage fittings, 6
…… Bathtub drainage pipe, 10 …… Drainage recess, 12 …… Drainage groove, 16 …… External drainage fitting, 18 …… External drainage pipe.

Claims (1)

[Scope of utility model registration request] 1. In a bathtub drainage structure of a bathroom unit in which a bathtub is placed on a waterproof pan, a flexible bathtub drainage pipe is attached to a bathtub drainage fitting provided at the bottom of the bathtub, while the waterproof pan is used for drainage. A recess is provided, and this recess for drainage is provided with a receiving seat on the circumferential surface thereof against which the bathtub drain pipe abuts, and a drain hole at the bottom thereof, and a drain hole is formed across the receiving seat from the upper surface of the waterproof pan. A drainage groove is formed to communicate with the drainage recess, and the bath drain pipe is seated in the receiving seat, and the external drain pipe is connected to the drain hole via an external drain fitting. A bath unit drainage structure for bathroom units.