JP2000328622A - Drainage structure for bathroom - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent as much as possible leakage of a large amount of primary water stop drain or back flow drain from a drain pipe to the side of a dressing room through a drain gutter. SOLUTION: Floor drain of a bathroom A is led to a drain gutter 7 arranged at the bottom side of a lower frame and, in a drainage structure of a bathroom which guides a drain pipe 8 from a drain gutter 7, the drain gutter 7 is divided into two of a gutter portion 7a at bathroom side and a gutter portion 7b at dressing room side through a partition plate 32, and a first seal member 24 is interposed between the bathroom A side of a door body 3 and the lower frame. A second seal member 54 is interposed between the side of dressing room B of the door body 3 and the lower frame, thereby guiding the primary water stop drain by the first seal member 24 to the gutter portion 7a at bathroom side and also the secondary water stop drain by the second seal member 54 is guided to the gutter portion 7b at the dressing room side.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drainage structure for a bathroom in which a drainage groove for receiving floor drainage of the bathroom is provided around a fitting constituting an entrance of the bathroom.

[0002]

2. Description of the Related Art Conventionally, as a drainage structure for a bathroom of this kind,
For example, the one described in JP-A-9-303059 is known. In this drainage structure, the first seal member is provided between the bathroom side of the fitting body and the lower frame, and the second seal member is provided between the undressing room side of the fitting body and the lower frame. The primary water stoppage drainage of the bathroom floor stopped by the first seal member is guided from the first drain hole of the lower frame to the drain groove, and the secondary water stoppage drainage leaks from the first seal member and is stopped by the second seal member. Is guided from the second drain hole of the lower frame to the drain groove.

[0003]

In such a conventional bathroom drainage structure, the primary water stoppage drainage and the secondary water stoppage drainage merge when passing through the first drainage hole and the second drainage hole, respectively. Flows into drains. That is, the drain route of the primary still drainage and the drain route of the secondary still drainage communicate with each other on the inflow side of the drain. For this reason, a large amount of primary water stoppage drainage is generated due to overflow of hot water in the bathtub, and when this flows into the drainage system in a concentrated manner, this drainage flows backward from the secondary water stoppage drainage channel to the second seal member side. However, water may leak from the second seal member. Similarly, when the drainage flows backward from the drainage pipe connected to the drainage system (connected to the main drainage pipe in the bathroom), the drained water flows back not only in the primary drainage drainage channel but also in the secondary stoppage. The water may also enter the drainage path of the water drainage, and this drainage may leak from the second seal member.

The present invention is directed to a bathroom drainage structure capable of preventing a large amount of primary still water and backflow drainage from a drain pipe from flowing to a dressing room side through a drain groove and leaking to the dressing room side as much as possible. Its purpose is to provide.

[0005]

SUMMARY OF THE INVENTION A bathroom drainage structure according to the present invention is characterized in that floor drainage of a bathroom is caused to flow down into a drainage groove arranged below a lower frame of a fitting constituting an entrance and exit of the bathroom, and a drainage groove is provided. In the drainage structure of the bathroom that led to the drain pipe from the
The drain groove is divided into a bathroom side groove part and a dressing room side groove part via a partition plate part, and a first seal member is interposed between the bathroom side of the fitting part main body of the fitting part and the lower frame. A second sealing member is interposed between the undressing room side of the main body and the lower frame, and the primary stationary drainage of floor drainage stopped by the first sealing member is guided to the bathroom side groove and stopped by the second sealing member. It is characterized in that the drained secondary still water is guided to a groove on the undressing room side.

According to this structure, the floor drainage (primary drainage drainage) stopped by the first seal member flows into the bathroom-side groove, passes through the first seal member (leak), and is discharged by the second seal member. The stopped floor drainage (secondary drainage drainage) flows into the groove on the dressing room side. That is, a relatively large amount of floor drainage flows into the bathroom-side groove, and a relatively small amount of floor drainage flows into the undressing room-side groove. In this way, by separating the inflow path of the primary static drainage and the inflow path of the secondary static drainage, it is possible to minimize the influence of a large amount of the primary static drainage on the small amount of the secondary static drainage. Can be. More specifically, it is possible to prevent the large amount of primary water stoppage drainage flowing into the drainage groove from reaching the second seal member from the drainage groove side by the partition plate portion.

In this case, it is preferable that the groove on the undressing room is connected to the upstream side of the drainage pipe, and the groove on the bathroom side is connected to the downstream side of the drainage pipe.

[0008] According to this structure, since the undressing room-side groove is connected to the upstream side of the drainage pipe, floor drainage flowing from the bathroom-side groove to the drainage pipe flows back to the upstream side of the drainage pipe and is undressed. It becomes difficult to flow into the side groove. Also, in the reverse flow of the drainage in the drain pipe, compared to the bathroom-side groove connected to the downstream side, the dressing room-side groove connected to the upstream side has a difference in pipe friction resistance between the two flow paths. Backflow drainage becomes difficult to flow.

In this case, it is preferable that a check valve is interposed between the connection part of the drain-side pipe and the connection part of the bathroom-side groove.

According to this configuration, the check valve prevents the inflow of drainage from the downstream side of the bathroom side groove and the drainage pipe to the dressing room side groove, and allows the drainage from the dressing room side groove to flow down. You. Therefore, it is possible to effectively prevent the backflow drainage from reaching the second seal member via the dressing room side groove.

[0011] In another bathroom drainage structure of the present invention, floor drainage of a bathroom is caused to flow down to a drainage channel disposed below a lower frame of a fitting that constitutes an entrance of the bathroom, and from the drainage channel to a drainage pipe. In the drainage structure of the bathroom to be led, the drainage groove is divided into a bathroom-side groove portion and a dressing room-side groove portion connected to the drainage pipe through the partition plate portion, and a large amount of the partition plate portion between the two groove portions is provided. A drain hole capable of suppressing inflow and outflow of drain water is formed, and a first seal member is interposed between the bathroom side of the fitting body and the lower frame of the fitting body, and the undressing room side of the fitting body and the lower frame. A second seal member is interposed between the first seal member and the primary drainage of floor drainage stopped by the first seal member is guided to the bathroom side groove, and the secondary drainage drainage stopped by the second seal member is removed from the undressing room. It is characterized in that the gutter is guided from the gutter to the bathroom gutter through a drain hole.

According to this configuration, the floor drainage (primary water stoppage drainage) stopped by the first seal member flows into the bathroom-side groove, passes through the first seal member (leak), and is discharged by the second seal member. The stopped floor drainage (secondary drainage drainage) flows into the groove on the dressing room side. That is, a relatively large amount of floor drainage flows into the bathroom-side groove, and a relatively small amount of floor drainage flows into the undressing room-side groove. The floor drainage that has flowed into the bathroom-side groove is directly led to the drainage pipe from the bathroom-side groove, and the floor drainage that has flowed into the dressing-room-side groove flows into the bathroom-side groove that has passed through the drainage hole from the dressing-room-side groove. It is led to the drain pipe from the bathroom groove. In this case, since the drainage hole is configured to be able to suppress the inflow and outflow of a large amount of drainage between the two groove portions, a large amount of primary water stoppage drainage that has flowed into the bathroom side groove portion is unlikely to flow into the undressing room side groove portion. In addition, it takes time even during the inflow (a normal flow occurs during that time), and the primary water stoppage drainage can be prevented from reaching the second seal member from the drainage groove side by the drainage hole.

In this case, it is preferable that a check valve is provided in the drain hole.

According to this configuration, the check valve prevents the inflow of drainage from the bathroom-side groove to the dressing room-side groove, and allows the drainage to flow from the dressing room-side groove to the bathroom-side groove. Therefore, it is possible to effectively prevent drainage from the bathroom-side groove and the drain pipe from reaching the second seal member via the undressing-room-side groove.

In these cases, it is preferable that a primary drainage drainage is provided upstream of the bathroom-side groove, temporarily stored, and then provided with a sub-drainage that flows down to the bathroom-side groove.

According to this configuration, when a large amount of floor drainage is generated in the bathroom, the floor drainage is temporarily stored in the sub-drain and then flows into the bathroom-side groove, so that a large amount of primary water stoppage drainage is generated. After a certain period of time, the water will flow into the bathroom groove. For this reason, it is possible to suppress a large amount of the primary still water drainage from flowing into the bathroom side groove in a short time.

[0017]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A drainage structure for a bathroom according to an embodiment of the present invention will be described below with reference to the accompanying drawings. This bathroom is composed of a unit bath with a barrier-free design in which there is no step between the bathroom and the dressing room. FIG. 1 is a view of a folding door constituting an entrance to a bathroom. As shown in the drawing, a folding door 1 as a fitting incorporates a door 3 composed of a left door 3a and a right door 3b in a frame 2. The left door body 3a and the right door body 3b are connected to bend freely in a state where they face each other. In this case, the floor surface 4 of the bathroom A, the lower frame 12 of the frame body 2 described later, and the floor surface 5 of the dressing room B are arranged substantially flush, that is, so as not to have a step (FIG. 2). Then, the folding door 1 includes the left and right doors 3a,
The door 3b is opened by being folded into the bathroom A side, and is closed when the left and right doors 3a, 3b are deployed to the undressing room B side from the folded state.

The frame 2 is constituted by an upper frame 11, a lower frame 12, and both vertical frames 13, 13. Each of the constituent frames 11, 12, 13 is formed of an aluminum material or the like. I have. Each door body 3a, 3b includes an upper frame 15, a lower frame 16
In addition, both vertical frames 17, 7 are assembled into a frame, and a resin panel body 18 is fitted into the frame, and these structural frames 15, 16, 17 are formed of an aluminum profile or the like. . A pulling portion 20 is formed on the undressing room B side at the upper and lower middle position of the right door body 3a, and a towel rail 21 also serving as a puller is mounted on the bathroom A side. The lower frame 16 of each of the doors 3a and 3b is provided with a ventilation gallery 22 that communicates between the inside and outside of the room.

Next, referring to FIG. 2, the lower frame 12 of the frame 2 will be described.
The surrounding structure will be described. In the waterproof pan 6 constituting the floor of the bathroom A, a pan groove 6a is formed so as to cover the lower frame 12 from below. The lower frame 12 is provided in the pan groove 6a.
The lower frame 12 has a structure in which an original lower frame and a drain groove for receiving floor drainage of the bathroom A are integrated.

The lower frame 12 is integrally formed with the lower frame main body 31 having a substantially U-shaped cross section in which the drain groove 7 is formed, and the lower frame main body 31 so as to divide the drain groove 7 into two parts in the expected direction. And a partition plate 32 provided. The drain groove 7 is divided into a bathroom-side groove 7a and a dressing-room-side groove 7b by a partition plate 32,
The bathroom side groove 7a is closed by a bathroom side lid 33, and the undressing room side groove 7b is closed by a undressing room side lid 34. Further, a guide rail 36 that guides the door body 3 to be able to open and close is integrally formed at the upper end of the partition plate 32. And the lower part of the bathroom side groove part 7a and the lower part of the undressing room side groove part 7b are each connected to the drainage pipe 8 via the drainage short pipes 37 and 37 which extend through the pan groove part 6a. The drain pipe 8 is connected to a main drain pipe (a drain trap) of the bathroom A, not shown.

The lower frame body 31 has a bathroom partition 37 and a dressing room partition 38 extending horizontally at both ends in the expected direction.
And two connecting recesses 39a, 39 facing the bathroom side groove 7a and the undressing room side groove 7b, respectively, in the lower part.
b. The connection short tubes 35a and 35b are connected to the two connection recesses 39a and 39b via ring seals 40, respectively. At both upper ends of the lower frame body 31, an inward lid locking portion 41 and a lid support portion 42 are respectively protruded, and correspondingly, a pair of outward facing Mounting portions 43a, 43
b is projected. The bathroom-side lid 33 is detachably attached so as to bridge between the lid locking part 41 and one of the mounting parts 43a, and the lid supporting part 42 and the other mounting part 4
The dressing room side lid 34 is detachably mounted so as to be bridged between the dressing room 3b.

The bathroom-side lid 33 has a substantially U-shaped cross section formed with a sub-drainage groove 9 therein, and a bathroom-side horizontal plate 46 extending from the upper end of the lid main body 45 to both sides in the viewing direction.
And a horizontal plate portion 47 on the undressing room side, and a closing plate 48 detachably attached to the lid body 45 so as to close the upper opening of the sub-drain 9. Bathroom side horizontal plate 4
6 is locked at the bent portion by the lid locking portion 41, and the undressing room side horizontal plate portion 47 is mounted on the mounting portion 43a. A number of first drain holes 49 are formed in the closing plate 48 in the finding direction, and second drain holes 50 are formed at the bottom of the lid body 45. On the other hand, the lower frame 16 is provided with a downward seal piece (first seal member) 24 whose tip end is in close contact with the bathroom A side of the guide rail 36. The floor drain water is temporarily removed from the first drain hole 49 through the sub-drain 9.
And flows into the bathroom side groove portion 7a from the sub drain groove 9 through the second drain hole 50. It is desirable to provide a drain filter such as a perforated plate in the second drain hole 50.

The undressing room side lid 7b has a horizontally extending lid body 52, and a seal mounting portion 53 connected to the undressing room B side of the lid body 52. The lid body 52 is mounted on the mounting portion 43b. And is mounted on the lid support section 42 by the seal mounting section 53. An upward seal piece (second seal member) 54 whose distal end is in close contact with the lower end of the lower frame 16 on the undressing room B side is attached to the seal attaching portion 53. Also, the lid body 52
Is formed with a plurality of drain holes 55 in the finding direction, and floor drain water that has flowed over the guide rail 36 and onto the dressing room side lid 34 is stopped by the upward seal pieces 54 and passes through the drain holes 55. And flows into the undressing room side groove 7b.

On the other hand, the downstream end of the connecting short pipe 35a on the bathroom A side is connected to the downstream connecting portion (actually a pipe joint) 8a of the drain pipe 8, and the downstream end of the connecting short pipe 35b on the undressing room B side. Is connected to an upstream connection portion (actually a pipe joint) 8b of the drain pipe 8. That is, the connection short pipe 35 b on the undressing room B side is connected to the downstream side of the drain pipe 8 with respect to the connection short pipe 35 a on the bathroom A side. In addition, a check valve 57 is interposed between the downstream connection portion 8a and the upstream connection portion 8b of the drain pipe 8, and the check valve 57 is disposed on the downstream side of the drain pipe 8 from the dressing room side groove. This prevents the drain water from flowing back to the portion 7b.

In such a configuration, the floor drainage of the bathroom A is stopped by the downward seal piece 24, and the primary drainage drainage flows from the first drain hole 49 into the sub-drain 9 and is temporarily stored therein. After that, the bathroom side groove 7a is passed through the second drain hole 50.
Flows into. Furthermore, the primary still water is drained from the bathroom side groove 7a.
Is temporarily stored in the drain pipe 8 through the connecting short pipe 35a.
It is led to. The floor drainage leaked from the downward seal piece 24 is stopped by the upward seal piece 54, and the secondary water stoppage drainage flows into the undressing room side groove 7b from the drain hole 55, and is temporarily stored here. It is led to the drain pipe 8 via the short pipe 35b.

That is, the large amount of the primary still water drains into the downstream side of the drainage pipe 8 via the sub-drain 9 and the bathroom side groove 7a, and the small amount of secondary water stoppage drains into the undressing room groove. The water flows into the upstream side of the drain pipe 8 through the portion 7b, and joins the primary water stoppage drain through the check valve 57. For this reason, even if a large amount of floor drainage is generated, the primary water stoppage drainage does not reach the upward seal piece 54 via the dressing room side groove 7b (backflow), and even if the drainage in the drainage pipe 8 flows back. This is the upward seal piece 54
Never reach. Therefore, it is possible to reliably prevent the drainage from leaking from the upward seal piece 54 to the undressing room B side due to the backflow of the drainage.

Next, a second embodiment will be described with reference to FIG. In this embodiment, only the bathroom-side groove 7a communicates with the drain pipe 8, and the undressing-room-side groove 7b is connected to the bathroom-side groove 7a via a plurality of second drain holes 61 formed at the lower end of the partition plate 32. Is in communication with That is, the partition 32
A plurality of second drain holes 61 in the finding direction are formed at the lower end of the second drainage hole 7b. The secondary stoppage drainage that has flowed into the undressing room side groove 7b passes through the second drain hole 61 and the bathroom side groove 7a. It is led to. In this case, the total opening area of the plurality of second drain holes 61 allows a small amount of secondary water stoppage drainage to flow from the dressing room side groove 7b to the bathroom side groove 7a, while the bathroom side groove 7a extends to the dressing room. It is set so that the inflow of a large amount of the primary still water into the side groove 7b can be suppressed.

Therefore, even if a large amount of floor drainage occurs,
It is difficult for the primary water stop drainage to flow from the bathroom side groove 7a to the undressing room side groove 7b, and the primary water stoppage drainage causes the undressing room side groove 7b.
It takes time for the water to become full. on the other hand,
The state of fullness of the main drainage pipe and the drainage pipe 8 side, which is considered to be the main cause of the primary stoppage drainage flowing into the undressing room side groove 7b, is resolved with time. The side groove 7b does not become full. Therefore, the primary stoppage drainage and the backflow drainage from the drain pipe 8 side,
It is possible to reliably prevent the drainage from leaking from the upward seal piece 54 to the dressing room B without reaching the upward seal piece 54. Note that the plurality of second drain holes 61 can be configured with a single slit. Also,
Although not shown, it is more preferable to provide a check valve in the second drain hole 61.

The present invention is also applicable to bathroom doors and sliding doors as fittings. Further, it does not matter whether the drainage ditch and the lower frame are integrated.

[0030]

As described above, according to the bathroom drainage structure of the present invention, the inflow path of the primary water stoppage drain and the inflow path of the secondary water stoppage drainage are separated around the drainage ditch, and these are separated as much as possible. Because the water is merged on the downstream side, it is possible to prevent a large amount of primary water stoppage drainage and backflow drainage from the drain pipe from reaching the second seal member. Water leakage to the room side can be prevented as much as possible.

[Brief description of the drawings]

FIG. 1 is a view of a folding door to which a bathroom drainage structure according to an embodiment of the present invention is applied.

FIG. 2 is an enlarged vertical sectional view illustrating a drainage structure of a bathroom according to the first embodiment.

FIG. 3 is an enlarged vertical sectional view illustrating a drainage structure of a bathroom according to a second embodiment.

[Explanation of symbols]

Reference Signs List 1 folding door, 2 frame body, 3 door body, 7 drain groove, 7a bathroom side groove section, 7b undressing room side groove section, 8 drain pipe, 8a downstream connection section, 8b upstream connection section, 9 auxiliary drain groove, 12
Lower frame, 24 Downward seal piece, 31 Lower frame body, 32
Separator, 33 Bathroom side lid, 34 Dressing room side lid, 36
Guide rail, 49 1st drainage hole, 50 2nd drainage hole, 54 upward seal piece, 55 drainage hole, 57 check valve, 61 second drainage hole, A bathroom, B undressing room

Claims (6)

[Claims] 1. A drainage structure for a bathroom in which floor drainage of a bathroom flows down to a drainage groove arranged below a lower frame of a fitting that constitutes an entrance of the bathroom, and is guided from the drainage groove to a drainage pipe. In the above, the drain groove is divided into a bathroom side groove part and a dressing room side groove part through a partition plate part, and a first seal member is provided between the bathroom side of the fitting body of the fitting and the lower frame. And a second sealing member is interposed between the undressing room side of the fitting body and the lower frame, and the primary drainage of the floor drainage stopped by the first sealing member is provided in the bathroom-side groove. The drainage structure for a bathroom, wherein the secondary drainage stopped by the second seal member is guided to the undressing room side groove. 2. The bathroom according to claim 1, wherein the undressing room-side groove is connected to an upstream side of the drainage pipe, and the bathroom-side groove is connected to a downstream side of the drainage pipe. Drainage structure. 3. The check valve according to claim 2, wherein a check valve is interposed between a connection portion of the undressing room-side groove portion and a connection portion of the bathroom-side groove portion of the drain pipe. Bathroom drainage structure. 4. A drainage structure for a bathroom in which floor drainage of a bathroom is caused to flow down to a drainage ditch arranged below a lower frame of a fitting constituting an entrance and exit of the bathroom, and is guided from the drainage ditch to a drain pipe. In the above, the drain groove is divided into a bathroom-side groove portion and a dressing room-side groove portion connected to the drain pipe via a partition plate portion, and a large amount of drainage flows into and from the partition plate portion between the two groove portions. A drainage hole capable of suppressing the above, and a first seal member is interposed between the bathroom side of the fitting body of the fitting and the lower frame, and the undressing room side of the fitting body and the lower frame. A second seal member is interposed between the first seal member, the primary stop water discharged from the floor drain, which is stopped by the first seal member, is guided to the bathroom-side groove, and the second stop water is stopped by the second seal member. Drainage is guided from the undressing room side groove to the bathroom side groove through the drainage hole. And a bathroom drainage structure. 5. The drainage structure for a bathroom according to claim 4, wherein a check valve is interposed in the drainage hole. 6. A sub-drain for receiving the primary water-stop drainage on the upstream side of the bathroom-side groove, temporarily storing the same, and then flowing down to the bathroom-side groove. The drainage structure of the bathroom according to the above.