JP5277398B2 - Bathroom drainage structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a drainage structure of a bathroom easily installable in a narrow bathroom, requiring less labor for a constructor which install a bathtub, and capable of smoothly eliminating the small positional displacement between a bathtub drain port and the bathtub drain port of a cover member. <P>SOLUTION: This drainage structure of a bathroom comprises the bathtub 1 as a bathtub body, the drain port 2 opened in the bottom surface of the bathtub 1, a drain plug 3 fitted to the drain port 2, a bathtub pan 4 for placing the bathtub 1 thereon, and a first drain port 5 opened to the bathtub pan 4 and discharging the drain from the bathtub 1 and the drain on the bathtub pan 4. The drainage structure further comprises a guide part 12, forming a water-tight pipe 11 extending from the drain plug 3 to the first drain port 5 and so diagonally projecting from the bottom end of the water-tight pipe 11, while its diameter is reduced inwardly; and a sloped surface 6, so formed in the first drain pipe 5 diagonally that its diameter is reduced lower inward. The guide part 12 of the water-tight pipe 11 is brought into contact with and connected to the tilted surface 6 of the first drain port 5. <P>COPYRIGHT: (C)2009,JPO&amp;INPIT

Description

The present invention relates to a drainage structure for a bathroom provided with a bathtub and a waterproof pan on which the bathtub is placed.

Conventionally, the drainage structure provided in the bathroom shown in FIGS. 6 to 8 has the following structure.
A conventional drainage structure of a bathroom includes a bathtub, a drain plug, a bathtub pan, a washing pan, a drainage elbow, a drain trap, a watertight tube, and a lid member.
The bathtub is a box that stores water therein, and is formed by opening a drain outlet for discharging the drained water stored inside to the bottom of the bathtub.
The drain plug is a member having a flange protruding outward in the upper end, and is a base attached to the drain port of the bathtub.
The bathtub pan is a waterproof pan on which the bathtub is placed, and has a first drain opening at the bottom. The first drain outlet is an opening for discharging drainage from the bathtub and drainage from the bathtub pan to the outside.
The washing place pan is a waterproof pan that forms a washing place, and has a second drainage opening at the bottom. The second drain port is an opening for discharging the waste water on the washing place pan to the outside.
The drain trap is a member attached to the back surface of the second drain port, and has a configuration in which drainage called sealed water is temporarily stored therein so that odors and pests from the sewage do not flow backward to the indoor side. . In addition, the drain trap is connected to the drain pipe and is finally configured to be discharged into sewage.
The drainage elbow is an L-shaped member with one end attached to the back surface of the first drainage port and the other end connected to a drainage trap to be described later, and discharges drainage from the bathtub and bathtub pan to the drainage trap. It is a member to do. Further, since the drain elbow is connected as a branch pipe to the sealed portion of the drain trap, the sealed water is always stored in conjunction with the drain trap.
The lid member is a member configured with two openings, a bathtub outlet and a bathtub pan outlet attached to the first drain outlet, and the bathtub pan outlet is an opening for draining only the drainage from the bathtub pan downstream. Thus, a backflow prevention device is provided. The backflow prevention device uses a float valve that rises / falls depending on the level of drainage. When drainage from the bathtub pan occurs, the float valve descends and can be smoothly discharged to the drainage elbow side. If the drainage water level rises, the float valve rises along with the drainage water level, seals the bathtub pan outlet of the lid member, and the drainage on the drainage elbow side does not flow back to the bathtub pan side. Yes. The other opening of the lid member is formed by opening a bathtub outlet through which only drainage from the bathtub passes.
The watertight pipe is a tube body with an upper end attached to the drain plug, and is configured by connecting the lower end to the bathtub outlet of the lid member of the first drain outlet.

Such a bathroom drainage structure is constructed and arranged as follows.
A drainage elbow is attached in advance to the first drainage outlet of the bathtub pan, and a drainage trap is attached in advance to the second drainage outlet of the wash basin pan, and the drainage elbow and the drainage trap are connected by a tubular body. Then, the bathroom pan and the bathtub pan are installed in the bathroom, and a lid member is attached to the first drain outlet of the bathtub pan. Moreover, a drain plug is previously attached to the drain outlet of the bathtub, and a watertight pipe is connected to the lower end of the drain plug. Thereafter, the bathtub is placed on top of the bathtub pan. At this time, the bathtub is placed on the bathtub pan while finely adjusting the position of the bathtub so that the opening of the watertight tube of the drain plug of the bathtub matches the bathtub outlet of the lid member attached to the first drain outlet of the bathtub pan. Placed on. By doing in this way, the drain outlet in a bathtub comes to be connected with the bathtub outlet of a cover member. Thereafter, the drain trap and the sewage pipe are connected by the drain pipe, and the apron is attached between the bathtub, the bathtub pan, and the washing pan, and the construction is completed.

In the conventional bathroom drainage structure, the drainage flow is as follows.
The wastewater generated from the bathtub is discharged from the bathtub outlet to the outside of the bathtub, passes through a drain plug attached to the bathtub outlet, and passes through the watertight pipe from the bathtub outlet of the lid member to the outside of the first drain outlet of the bathtub pan. , Passes through the inside of the drain elbow, and is discharged to the drain trap. Thereafter, the drainage in the drainage trap is discharged out of the drainage trap through the sealed water. And the waste_water | drain in a drain trap is finally discharged | emitted to a sewer pipe through a drain pipe.

JP-A-3-260230 JP 2001-241079 A

The drainage structure of the bathroom as in the conventional example has the following problems.
In a normal bathroom, when installing and installing a tub and tub pan, it is often performed in a narrow space in the bathroom. Alignment for connection between the watertight pipe connected to the tub and the bathtub outlet of the lid member attached to the first drain outlet of the bathtub pan must be performed. However, even if it is attempted to construct in such a narrow place, it is often difficult to perform construction by lifting a heavy bathtub or the like on a small place and it is very difficult for the operator / constructor.
In addition, it is necessary to work while moving the bathtub, but the bathtub outlet of the lid member is small compared to the size of the bathtub, and it is very important for the installer to move the large bathtub to match the small bathtub outlet. In many cases, it is difficult to be constructed with a slight misalignment, and if it is constructed with such a misalignment, the drainage of the bathtub leaks onto the bathtub pan. And since the division of the bathtub pan is divided by a washing place pan and an apron, it is difficult for the user to maintain and it is difficult to wash. Therefore, the top of the bathtub pan is soiled by drainage, which may cause a strange odor.

Therefore, the bathroom drainage structure of the present invention was invented to solve the following problems.
1. Easy installation in a small bathroom.
2. There should be no hassle for the installer when installing the bathtub.
3. The fine positional deviation between the bathtub outlet and the bathtub outlet of the lid member can be eliminated smoothly.

The present invention according to claim 1 is a bathtub 1 which is a tank body,
A drain port 2 opened in the bottom of the bathtub 1,
A drain plug 3 attached to the drain port 2;
A bathtub pan 4 on which the bathtub 1 is placed;
A first drain opening 5 which is opened in the bathtub pan 4 and discharges the drainage from the bathtub 1 and the drainage on the bathtub pan 4;
In the bathroom drainage structure composed of
The watertight pipe 11 that communicates from the drain plug 3 to the first drain port 5 has a bellows shape, and has a guide portion 12 that is inclined and protrudes so as to reduce the diameter inwardly at the lower end thereof.
The bellows-shaped part is made of an elastic body such as rubber,
The guide portion 12 is connected to and contacted with an inclined surface 6 that is configured in the first drainage port 5 and that is inclined while being reduced in diameter toward the lower inward direction.
The abutment portion of the guide portion 12 is a sliding portion made of resin or the like, and is a bathroom drainage structure .

The present invention described in claim 2 is a washing place bread 8 that forms a washing place,
A second drainage port 9 for discharging the drainage on the washing place pan 8 opened in the washing place pan 8;
A drainage trap 10 attached to the second drainage port 9 of the wash basin pan 8 for discharging the drainage discharged from the second drainage port 9 into sewage,
A drainage elbow 7 attached to the first drainage port 5 of the bathtub pan 4 and discharging the drainage from the first drainage port 5 to the drain trap 10;
The bathroom drainage structure according to paragraph 0008, wherein the bathroom drainage structure is provided.

According to a third aspect of the present invention, in the bathroom according to the paragraph 0008 or paragraph 0009, the lower end of the watertight pipe 11 is configured with a flange portion 14 configured to protrude outward. It is a drainage structure.

The present invention described in claim 4 is the bathroom drainage structure according to any one of paragraphs 0008 to 0010 , wherein a resin film 13 is formed on the guide portion 12 of the watertight tube 11. is there.

A fifth aspect of the present invention is the bathroom drainage structure according to any one of the paragraphs 0008 to 0011 , wherein a lid member 15 is formed in the first drain port 5.

The present invention described in claim 6 is the bathroom drainage structure according to paragraph 0012 , characterized in that a backflow prevention device 18 is formed on the lid member 15.

The bathroom drainage structure of the present invention has the following effects.
The drainage structure of the bathroom according to claim 1 constitutes a watertight pipe 11 that communicates from the drain plug 3 to the first drainage port 5, and protrudes incliningly toward the lower end of the watertight pipe 11 so as to reduce the diameter inward. The guide portion 12 is composed of an inclined surface 6 that is formed in the first drain port 5 and that is inclined while being reduced in diameter toward the lower side in the inward direction. Since it is configured to contact and connect to the inclined surface 6 of the first drain port 5, the guide portion 12 of the water-tight tube 11 is connected to the inclined surface 6 of the first drain port 5 when the water-tight tube 11 and the first drain port 5 are connected. The center axis of the watertight tube 11 and the center axis of the first drain port 5 are aligned with each other, so that it is possible to save the labor and labor for eliminating the fine positional deviation during construction.
Moreover, since the watertight pipe 11 has a bellows shape, even if the axial centers of the watertight pipe 11 and the first drain port 5 are slightly deviated, the watertight pipe 11 has a bellows shape, so that the center axis of both is displaced. Can be absorbed. Therefore, the construction of the bathroom can be omitted.
Furthermore, since the bellows-shaped portion is made of an elastic material such as rubber, even if the axial centers of the watertight tube 11 and the first drain port 5 are slightly shifted, the watertight tube 11 is an elastic material. Displacement can be absorbed. Therefore, the construction of the bathroom can be omitted.
The bathroom drainage structure according to claim 2 includes a washing basin 8 that forms a washing area, a second drainage port 9 that discharges drainage on the washing area 8 that is opened in the washing area 8, and a second of the washing area 8. A drain trap 10 for discharging drainage discharged from the second drain port 9 to the sewage, attached to the drain port 9, and drainage from the first drain port 5 attached to the first drain port 5 of the bathtub pan 4. The drainage elbow 7 that discharges the wastewater to the drainage trap 10 can be applied to a split type waterproof pan composed of a bathtub pan 4 and a washing pan 8.
The bathroom drainage structure according to claim 3 has a flange portion 14 configured to protrude outwardly at the lower end of the watertight pipe 11, so that it is fixed on the flange portion 14 and the upper surface of the first drainage port 5. Since the water surface is configured, the water tightness of the watertight pipe 11 and the first drain port 5 is improved.
In the bathroom drainage structure according to claim 4 , since the resin film 13 is formed on the guide portion 12 of the watertight pipe 11, the resin film 13 can smoothly slide on the peripheral edge of the first drainage port 5 and the inclined surface 6. Thus, the guide portion 12 of the watertight pipe 11 is more likely to match the inclined surface 6 of the first drain port 5. Therefore, the construction of the bathroom can be omitted.
Drainage structure bath according to claim 5, the first drain port 5, since that constitutes a lid member 15 can be divided and the inlet of the wastewater from the bathtub 1, the inlet of waste water bath pan 4 .

The bathroom drainage structure shown in the present embodiment is provided in the bathroom shown in FIGS. 1 to 5 and has the following configuration.
The bathroom drainage structure of the present embodiment includes a bathtub 1, a drain plug 3, a bathtub pan 4, a washing basin 8, a drainage elbow 7, a drain trap 10, a watertight pipe 11, and a lid member 15. Composed.
The bathtub 1 is a box that stores water therein, and is formed by opening a drain outlet 2 on the bottom surface of the bathtub 1 for discharging the waste water stored inside to the outside.
The drain plug 3 is a member having a flange portion 14 protruding outward in the upper end, and is a base attached to the drain port 2 of the bathtub 1.
The bathtub pan 4 is a waterproof pan on which the bathtub 1 is placed, and is formed by opening a first drain port 5 at the bottom. In addition, the 1st drain port 5 is an opening for discharging | emitting the waste_water | drain from the bathtub 1 and the waste_water | drain from the bathtub pan 4 outside.
The washing place pan 8 is a waterproof pan that forms a washing place, and has a second drainage opening 9 at the bottom. The second drain port 9 is an opening for discharging the drainage on the washing place pan 8 to the outside.
The drain trap 10 is a member attached to the back surface of the second drain port 9 and has a configuration in which drainage called sealed water is temporarily stored therein so that odors and pests from the sewage do not flow backward to the indoor side. ing. Further, the drain trap 10 is connected to a drain pipe and is configured to be finally discharged into sewage.
The drainage elbow 7 is an L-shaped member with one end attached to the back surface of the first drainage port 5 and the other end connected to a drainage trap 10 to be described later, and drains from the bathtub 1 and the bathtub pan 4. A member that discharges to the drain trap 10. Further, since the drain elbow 7 is connected as a branch pipe to the sealed portion of the drain trap 10, the sealed water is always stored in conjunction with the drain trap 10.
As shown in FIG. 2, the lid member 15 is a member configured with two openings, a bathtub outlet 16 attached to the first drain outlet 5 and a bathtub pan 4 outlet. The bathtub pan outlet 17 is an opening for draining the drainage from the bathtub pan 4 downstream, and is provided with a backflow prevention device 18. The backflow prevention device 18 uses a float valve that rises / falls depending on the level of drainage. When drainage from the bathtub pan 4 occurs, the float valve descends and can be smoothly discharged to the drainage elbow 7 side. If the drainage water level on the drainage elbow 7 side rises, the float valve rises along with the drainage water level, seals the bathtub pan outlet 17 of the lid member 15, and the drainage on the drainage elbow 7 side moves to the bathtub pan 4 side. It is configured not to flow backward. Moreover, the bathtub outlet 16 of the lid member 15 is formed by opening the bathtub outlet 16 through which drainage from the bathtub 1 passes. In addition, the opening edge of the bathtub discharge port 16 comprises the inclined surface 6 which inclines while shrinking | reducing diameter inward and downward.
As shown in FIG. 2, the watertight tube 11 is a tube body that has an upper end attached to the drain plug 3, and has a lower end connected to the bathtub outlet 16 of the lid member 15 of the first drain outlet 5. And the watertight pipe | tube 11 consists of a raw material provided with elasticity, and is comprised from the rubber | gum which has elasticity in a present Example. Moreover, the watertight pipe | tube 11 is bellows shape, Comprising: The said bellows shape is comprised so that the axial shift | offset | difference of the center axis | shaft of the drain outlet 2 of the bathtub 1 and the bathtub outlet 16 may be absorbed to some extent. And the guide part 12 comprised by inclining and projecting toward the downward direction of the inner direction is comprised in the lower end inner periphery of the watertight pipe | tube 11. As shown in FIG. The guide portion 12 is coated with a resin film 13 made of a material having good slidability, and comes into contact with the inclined surface 6 of the bathtub outlet 16 of the lid member 15. And the flange part 14 which comprises the information of the guide part 12 of a watertight pipe | tube and protrudes toward an outer side direction is comprised. The flange portion 14 is in watertight contact with the vicinity of the upper edge portion of the bathtub discharge port 16 of the lid member 15, and a water stop surface is configured so that the drainage from the bathtub 1 does not leak onto the bathtub pan 4. .

In such a bathroom drainage structure, as shown in FIGS. 3 to 5, the construction is arranged as follows.
A drainage elbow 7 is attached to the first drainage port 5 of the bathtub pan 4 and a drainage trap 10 is previously attached to the second drainage port 9 of the washing pan 8, and the drainage elbow 7 and the drainage trap 10 are connected by a pipe. . Thereafter, the washing pan 8 and the bathtub pan 4 are installed in the bathroom, and the lid member 15 is attached to the first drain port 5 of the bathtub pan 4. As shown in FIG. 3, the bathtub 1 has a drain plug 3 attached to the drain port 2 in advance, and a watertight tube 11 is connected to the lower end of the drain plug 3. Thereafter, the bathtub 1 is placed on top of the bathtub pan 4. At this time, the position of the bathtub 1 is slightly adjusted so that the opening of the watertight tube 11 of the drain plug 3 of the bathtub 1 matches the bathtub outlet 16 of the lid member 15 attached to the first drain outlet 5 of the bathtub pan 4. The bathtub 1 is placed on the bathtub pan 4 while adjusting. By doing in this way, the drain port 2 in the bathtub 1 is communicated with the bathtub discharge port 16 of the lid member 15. At this time, as shown in FIG. 4, the guide portion 12 of the watertight tube 11 slides downward along the inclined surface 6 of the bathtub outlet 16 of the lid member 15, and the inclined surface 6 of the inclined surface 6 as shown in FIG. 5. The inclination and the inclination of the guide portion 12 match, and the watertight pipe 11 and the bathtub outlet 16 of the lid member 15 are sealed in a watertight manner. And the flange part 14 of the watertight pipe | tube 11 contact | abuts to the upper surface periphery of the bathtub discharge port 16 of the cover member 15, and can achieve water-tightening more. In addition, since the resin film 13 is coated on the guide portion 12 of the watertight tube 11, the guide portion 12 smoothly slides when the abutment against the inclined surface 6 of the bathtub discharge port 16 causes the watertight tube 11 to move to the bathtub. The guide is provided so as to be positioned at the axial center of the discharge port 16.
Since it connects in this way, even if it installs and connects the watertight pipe | tube 11 and the bathtub discharge port 16 in a narrow bathroom, it can connect now easily.
Thereafter, the drain trap 10 and the sewage pipe are connected by a drain pipe, and an apron is attached between the bathtub 1, the bathtub pan 4, and the washing pan 8 to complete the construction.

In the drainage structure of the bathroom of the embodiment, the drainage flow is as follows.
The drainage generated from the bathtub 1 is discharged from the drain outlet 2 of the bathtub 1 to the outside of the bathtub 1, passes through the drain plug 3 attached to the drain outlet 2 of the bathtub 1, and passes through the watertight pipe 11 to the first of the bathtub pan 4. It is discharged from the bathtub outlet 16 of the lid member 15 installed in the drain outlet 5 to the outside of the first drain outlet 5 of the bathtub pan 4, passes through the drain elbow 7, and is discharged to the drain trap 10. Thereafter, the drainage in the drain trap 10 is discharged out of the drain trap 10 through the sealed water. And the waste_water | drain in the drain trap 10 is finally discharged | emitted to a sewer pipe through a drain pipe.
The drainage generated in the bathtub pan 4 is discharged from the bathtub pan discharge port 17 of the lid member 15 installed in the first drain port 5 of the bathtub pan 4 to the drain elbow 7 side through the backflow prevention device 18. The wastewater that flows into the drainage elbow 7 passes through the drainage elbow 7 and flows into the drainage trap 10, and finally the drainage in the drainage trap 10 passes through the sealed water to the sewer pipe via the drainage pipe. And discharged.
Further, the waste water from the washing place pan 8 flows from the second drain opening 9 of the washing place pan 8 into the drain trap 10 attached to the second drain opening 9. And it is finally discharged | emitted to the sewer pipe through the sealed water in the drain trap 10, and a drain pipe.
For example, when there is a large amount of drainage from the wash basin pan 8, the drainage flow rate of the drain trap 10 attached to the second drain port 9 of the wash basin pan 8 does not catch up with the first drain port 5 of the bathtub pan 4. The drainage may flow backward to the attached drainage elbow 7 side. When the drainage in the drainage elbow 7 flows backward, the drainage flows backward to the bathtub pan 4 side. In this embodiment, a lid member 15 is provided at the first drainage port 5 of the bathtub pan 4, and the circulation with the bathtub pan 4 is performed. Since the bathtub pan outlet 17 which is an opening is provided with a backflow prevention device 18 comprising a float valve, the float valve of the backflow prevention device 18 rises as the level of drainage rises, and the bathtub pan outlet 17 is sealed watertight. Since it stops, drainage does not flow backward to the bathtub pan 4 side. In addition, since the backflow prevention device 18 is normal (when the drainage is not backflowing), the float valve is lowered by its own weight, and even if drainage occurs in the bathtub pan 4, the float valve is lowered. The drainage on the bathtub pan 4 is smoothly discharged from the bathtub pan discharge port 17 of the first drain port 5 lid member 15 of the bathtub pan 4 to the drainage elbow 7 side.

The drainage structure of the bathroom of the present invention can be appropriately changed in design without departing from the scope of the claims in addition to the above embodiments.
For example, in the above embodiment, the drain port 2 of the bathtub 1 is not equipped with a remote-operated drain plug device, but a drainage structure equipped with these devices may be used.
In the embodiment, the washing pan 8 and the bathtub pan 4 are divided into two pans. However, the bathtub pan 4 and the washing pan 8 may be integrally formed.

It is sectional drawing which shows the construction state of this invention. It is the A section expanded sectional view in Drawing 1 of the present invention. It is a fragmentary sectional view which shows the procedure at the time of construction of this invention. It is a fragmentary sectional view which shows the procedure at the time of construction of this invention. It is a partial expanded sectional view which shows the construction state of this invention. It is sectional drawing which shows a prior art example. It is sectional drawing which shows a prior art example. It is sectional drawing which shows a prior art example.

DESCRIPTION OF SYMBOLS 1 Bathtub 2 Drainage port 3 Drainage plug 4 Bathtub pan 5 1st drainage port 6 Inclined surface 7 Drainage elbow 8 Washing pan 9 Second drainage port 10 Drainage trap 11 Watertight pipe 12 Guide part 13 Resin film 14 Flange part 15 Lid member 16 Bathtub Outlet 17 bathtub pan outlet

Claims (6)

Bathtub 1 which is a tank body;
A drain port 2 opened in the bottom of the bathtub 1,
A drain plug 3 attached to the drain port 2;
A bathtub pan 4 on which the bathtub 1 is placed;
A first drain opening 5 which is opened in the bathtub pan 4 and discharges the drainage from the bathtub 1 and the drainage on the bathtub pan 4;
In the bathroom drainage structure composed of
The watertight pipe 11 that communicates from the drain plug 3 to the first drain port 5 has a bellows shape, and has a guide portion 12 that is inclined and protrudes so as to reduce the diameter inwardly at the lower end thereof.
The bellows-shaped part is made of an elastic body such as rubber,
The guide portion 12 is connected to and contacted with an inclined surface 6 that is configured in the first drainage port 5 and that is inclined while being reduced in diameter toward the lower inward direction.
The bathroom drainage structure, wherein the contact portion of the guide portion 12 is a sliding portion made of resin or the like. Washing area bread 8 forming the washing area,
A second drainage port 9 for discharging the drainage on the washing place pan 8 opened in the washing place pan 8;
A drainage trap 10 attached to the second drainage port 9 of the wash basin pan 8 for discharging the drainage discharged from the second drainage port 9 into sewage,
A drainage elbow 7 attached to the first drainage port 5 of the bathtub pan 4 and discharging the drainage from the first drainage port 5 to the drain trap 10;
The bathroom drainage structure according to claim 1, wherein the bathroom drainage structure is provided. The drainage structure for a bathroom according to claim 1 or 2, wherein a flange portion (14) is formed at the lower end of the watertight pipe (11) so as to protrude outward. The bathroom drainage structure according to any one of claims 1 to 3 , wherein a resin film (13) is formed on the guide portion (12) of the watertight pipe (11). The bathroom drainage structure according to any one of claims 1 to 4 , wherein a lid member (15) is formed in the first drainage port (5). The bathroom drainage structure according to claim 5 , wherein a backflow prevention device (18) is formed on the lid member (15).

Images