JP2002332672A - Drainage structure for bathtub - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a drainage structure for a bathtub, which maintains the hygiene of a top face of a bathtub for setting a waterproof pan, and facilitates cleaning of a bathtub-side seal-water pipe. SOLUTION: According to the drainage structure, the bathtub 3 is set on the bathtub setting waterproof pan 1, and a bathtub drainage hole 6D is formed in a bottom portion of the bathtub 3. Then, a waterproof pan drainage hole 12A is formed in the bathtub setting waterproof pan 1 at a location below the bathtub drainage hole 6D, and a trap main body 11 having a seal-water portion 11A for storing drainage, is arranged below the waterproof pan drainage hole 12A. Then the bathtub drainage hole 6D is air-tightly connected to the waterproof pan drainage hole 12A, and the bathtub-side seal-water pipe 10 which is detachable from the interior of the bathtub 3 is inserted into the bathtub drainage hole 6D and the waterproof pan drainage hole 12A. Further, a lower end of the seal-water pipe 10 is arranged so as to be located at the seal- water portion 11A.

Description

DETAILED DESCRIPTION OF THE INVENTION TECHNICAL FIELD OF THE INVENTION

The present invention relates to a bathtub drainage structure.

[Prior art]

As an example of the prior art, Japanese Utility Model Application Laid-Open No. 3-119
In the drainage device shown in FIG. 071, as shown in FIG. 5, the trap body 113 of the drainage trap is disposed in the bathtub installation waterproof pan 110 provided below the bathtub 101, and penetrates the bottom wall of the bathtub 101. In the mounting port 102,
A drainage tube 106 that can be removed from the inside of the bathtub is suspended so that the lower end thereof is inserted into the water reservoir 113C in the trap body 113.

In the case of this drainage device, the water in the bathtub 101 flows into the trap body 113 from the water seal tube 106, and is discharged from the drain trap body 113 to the drain pipe 115. Further, by removing the water bottle 106 from the inside of the bathtub 101, it is possible to clean dirt and the like in the water bottle 106.

[Problems to be solved by the invention]

However, in the case of the above example, since the water on the upper surface of the bathtub installation waterproof pan 110 also flows into the trap body 113 and is discharged to the drain pipe 115, the bathtub installation waterproof pan 11
The space A on the upper surface of the water bottle 10 in the trap body 113 is
6 is communicated with the space B outside. Further, since the space B and the space C in the drain pipe 115 are not separated by water sealing but communicate with each other, the odor and the pests from the drain pipe 115 follow these spaces to form a waterproof pan for bathtub installation. There is a possibility of reaching space A on the upper surface of 110.

Accordingly, the space A tends to be unsanitary, and frequent cleaning must be performed. Space A
It was necessary to completely insulate the space A from the bathroom space in order to prevent the odor from leaking into the bathroom space (the upper surface of the bathtub or the space in the washing room). Therefore, the gap between the contact portion between the bathtub 101 and the wall panel, the contact portion between the bathtub 101 and the apron for the bathtub, and the gap between the contact portion between the apron for the bathtub and the waterproof pan 110 for installing the bathtub must be sealed with silicon caulking or the like. It had to be very time consuming.

[0006] In view of the above circumstances, the present invention provides a bathtub drainage structure in which the upper surface of a bathtub-installed waterproof pan can be kept hygienic and the trap canister can be easily cleaned for draining the bathtub. Is an issue to be solved.

[Means for Solving the Problems]

According to a first aspect of the present invention, there is provided a bathtub drainage structure, wherein a bathtub is installed on a bathtub installation waterproof pan, a bathtub drainage hole is provided at the bottom of the bathtub, and the bathtub drainage hole is provided below the bathtub drainage hole. A waterproof pan drain hole at a position, a trap body having a water sealing portion for storing drainage below the waterproof pan drain hole, airtight connection between the bathtub drain hole and the waterproof pan drain hole, A bathtub-side water seal that can be removed from the inside of the bathtub is inserted into the bathtub drainage hole and the waterproof pan drainage hole, and the lower end portion is located at the water sealing part.

According to a second aspect of the present invention, there is provided a drainage structure for a bathtub, wherein a waterproof pan for a washing place is provided adjacent to the waterproof pan for installing the bathtub, and a drainage hole for the washing place is provided near the waterproof pan drainage hole of the waterproof pan for the washing place. Extending the drain trap body to a position below the washing-pan drain hole, inserting a washing-panel-side water bottle that can be removed from the upper surface side of the washing-pan waterproof pan through the washing-pan waterproof pan drain hole, and having a lower end portion thereof. It is characterized by being provided so as to be located at the water sealing section.

A drainage structure for a bathtub according to a third aspect is characterized in that a hair catcher is integrally provided in the bathtub-side water bottle.

[Action]

In the bathtub drainage structure of the present invention, since the bathtub drainage hole and the waterproof pan drainage hole are airtightly connected, the upper surface of the bathtub installation waterproof pan can be kept hygienic.
Further, by removing the bathtub-side watertight tube from the inside of the bathtub, the bathtub-side watertight tube can be easily cleaned. In addition, maintenance such as cleaning of the drain trap body can be performed within a range where the work can be performed from the bathtub drain hole.

In the bathtub drainage structure according to the second aspect, the washstand side watertight pan is removed from the upper surface side of the washstand waterproof pan and the work is performed from the washstand waterproof pan drainage hole, thereby cleaning the trap body from the bathtub drainage hole side. Maintenance such as cleaning of the part that could not be performed becomes possible.

In the drainage structure for a bathtub according to the third aspect, by removing the bathtub-side watertight tube from the inside of the bathtub, it is possible to simultaneously remove dust such as hair accumulated on the hair catcher. Also, there is no need to separately provide a holding mechanism for the hair catcher inside the bathtub drainage hole, separately from the holding mechanism for the bathtub-side water bottle.

【Example】

An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a simplified sectional view of a unit bath utilizing the present invention, and FIG. 2 is an enlarged sectional view showing a drainage structure of a bathtub.

As shown in FIG. 1, the unit bath includes a waterproof pan 1 for installing a bathtub, a waterproof pan 2 for a washing place, a bathtub 3,
Bathtub apron 4, wall panel 5, door not shown,
It consists of a ceiling panel, a faucet and the like.

As shown in FIG. 2, a drainage fitting 6 is attached to an opening at the bottom of the bathtub 3 by a fastening nut 7 via a packing 8 and a washer 9. The drainage fitting 6 has a cylindrical portion 6A having an external thread formed on the outer circumference, an upper flange portion 6B provided at the upper end of the cylindrical portion 6A and having a diameter larger than the opening of the bathtub 3, and a lower end of the cylindrical portion 6A. The provided lower flange portion 6C is provided. The inner space 6D of the drainage fitting 6 constitutes a bathtub drainage hole.

Reference numeral 10 denotes a bathtub-side watertight cylinder, which has a cylindrical portion 10A and a hair catcher portion 10B as shown in FIG. The hair catcher part 10B is a collapsible bottom part 10E
And a knob 10C is provided upright at the center.
A soft packing 10D is integrally provided on a surface that comes into contact with the lower flange portion 6C of the bathtub-side watertight casing 10, and the bathtub-side watertight casing 10 and the drainage fitting 6 are in airtight contact with each other. Also,
The lower end of the bathtub-side watertight tube 10 is located in the drainage stored in a watertight portion 11A described later.

FIG. 2 shows an opening of the waterproof pan 1 for installing a bathtub.
As shown in FIG.
2 is attached via a packing 13. The trap body 11 has a horizontally long shape that can span the drain hole of the waterproof pan 1 for installing a bath tub and the drain hole of the waterproof pan 2 for a washing place, and has a water sealing portion 11A for storing drain water, and an opening for draining the bath tub. 11B and an opening 11C for a washing place drainage,
And an outlet 11D. Trap fixing member 12
Has a donut shape in plan view, and is provided with a male screw screwed with a female screw provided in the bathtub drainage opening 11B on the outer periphery of the lower part thereof. The inner space 12A of the trap fixing member 12 forms a waterproof pan drain hole.

A first airtight member 14 and a second airtight member 15 are installed on the trap fixing member 12. The first hermetic member 14 is formed of resin in a donut shape in plan view, and the second hermetic member 15 is formed of rubber having high elasticity in a donut shape in plan view. The second hermetic member 15 is in contact with the tightening nut 7. Since the drainage fitting 6, the fastening nut 7, the second hermetic member 15, the first hermetic member 14, and the trap fixing member 12 are arranged without gaps, the inside of the drainage fitting 6, which is a bathtub drainage hole, is provided. Space 6D and inner space 1 of trap fixing member 12 which is a waterproof pan drain hole
2A is hermetically connected.

A washing pan 2 is provided adjacent to the bathtub-installing waterproof pan 1.
The trap body 11 is fixed via a packing 17 by a trap fixing member 16. The inner space 16A of the trap fixing member 16 constitutes a drainage hole for a washing place. A washing place side water bottle 18 is detachably fitted to the trap fixing member 16 from the upper surface side of the washing pan.
The lower end of the washroom-side watertight tube 18 is located in the drainage stored in the water-sealing portion 11A of the trap body 11. In addition, 1
Reference numeral 9 denotes a hair catcher placed on the trap fixing member 16.

With the above configuration, even if a bad odor flows into the trap body 11 from the downstream drain pipe side, that is, the outlet 11D, the lower end of the bathtub-side watertight tube 10 provided in the bathtub drainage hole is sealed with water. Since it is located in the portion 11A, a bad odor does not rise from the bathtub drain hole. Further, since the bathtub drainage hole and the waterproof pan drainage hole are air-tightly connected, the odor from the waterproof pan drainage hole does not rise on the upper surface of the bathtub installation waterproof pan 1.

Further, the bathtub-side watertight tube 10 can be cleaned by grasping the knob 10C and pulling it off, and maintenance such as cleaning of the trap body 11 can be performed within a range that can be worked from the bathtub drain hole. . In addition, by removing the washing-stage-side water bottle 18, maintenance of the trap body 11 from the washing-stage side can be performed. Therefore, even when the trap body 11 is horizontally long as in the present embodiment, the entire maintenance can be performed by inserting a cleaning tool through both drain holes.

Further, since the bathtub side water bottle 10 is provided with a hair catcher integrally therewith, when the water bottle 10 is removed, the work of removing dirt such as hairs accumulated in the hair catcher can be performed at the same time. Further, there is no need to separately provide a holding mechanism for the hair catcher inside the bathtub drainage hole, separately from the holding mechanism for the bathtub-side watertight bottle.

FIG. 4 is a simplified sectional view of a unit bus according to another embodiment utilizing the present invention. This embodiment is different from the above embodiment in the shape of the trap body 11 '.

The trap body 11 'of this embodiment is formed so that the height H on the washing side is higher than the height h on the bathtub side. According to this embodiment, the washing-side water bottle 18
The length in the water sealing portion can be lengthened. Therefore, the risk of running out of water due to fluctuations in the water level of the water sealing section can be further reduced.

Although the above embodiment is an example in which the waterproof pan 1 for installing a bathtub and the waterproof pan 2 for a washing place are provided integrally, the present invention is not limited to this. As another embodiment of the present invention, a so-called split waterproof pan in which a waterproof pan 1 for installing a bathtub and a waterproof pan 2 for a washing place may be formed separately.

【The invention's effect】

According to the drainage structure for a bathtub of the present invention, the upper surface of the waterproof pan for installing the bathtub can be maintained in a sanitary manner, and by removing the bathtub-side watertight tube from the inside of the bathtub, the bathtub side can be sealed. The water bottle can be easily cleaned.

[Brief description of the drawings]

FIG. 1 is a sectional view of a unit bus according to an embodiment of the present invention.

FIG. 2 is an enlarged sectional view of a main part according to the embodiment of the present invention.

FIG. 3 is a perspective view of a bathtub-side water bottle.

FIG. 4 is a sectional view of a unit bus according to another embodiment of the present invention.

FIG. 5 is a sectional view showing a conventional technique.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Waterproof pan for installing a bathtub 2 Waterproof pan for a washing place 3 Bathtub 6D Bathtub drainage hole (inside space) 10 Bathtub side water seal 11 Trap body 11A Water sealing part 12A Waterproof pan drainage hole (inside space) 18 Washing side water seal

Claims (3)

[Claims] 1. A bathtub is installed on a waterproof pan for bathtub installation,
A bathtub drain hole is provided at the bottom of the bathtub, and a waterproof pan drain hole is provided at a position below the bathtub drain hole of the bathtub installation waterproof pan.
A trap body having a water-sealing portion for storing drainage is provided below the waterproof pan drainage hole, the bathtub drainage hole and the waterproof pan drainage hole are airtightly connected to each other, and a bathtub side detachable from the inside of the bathtub. A drainage structure for a bathtub, wherein a watertight tube is inserted into the bathtub drainage hole and the waterproof pan drainage hole, and a lower end portion thereof is located at the water sealing portion. 2. A washing pan waterproof pan is provided adjacent to the bathtub setting waterproof pan, a washing pan drain hole is provided near the waterproof pan drain hole of the washing pan waterproof pan, and the trap body is used for the washing pan. A washing-side water bottle that extends to a position below the drain hole and that is removable from the upper surface side of the washing-pan waterproof pan is provided so that the washing-pan waterproof pan drain hole is inserted and the lower end thereof is positioned in the water-sealing portion. The drainage structure for a bathtub according to claim 1, wherein: 3. The drainage structure for a bathtub according to claim 1, wherein a hair catcher is provided integrally with the bathtub side water bottle.