CN111344462A - Drainage structure of bathroom unit and construction method - Google Patents
Drainage structure of bathroom unit and construction method Download PDFInfo
- Publication number
- CN111344462A CN111344462A CN201880072942.7A CN201880072942A CN111344462A CN 111344462 A CN111344462 A CN 111344462A CN 201880072942 A CN201880072942 A CN 201880072942A CN 111344462 A CN111344462 A CN 111344462A
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- floor
- drain
- adapter
- floor drain
- bathroom unit
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03C—DOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER; SINKS
- E03C1/00—Domestic plumbing installations for fresh water or waste water; Sinks
- E03C1/12—Plumbing installations for waste water; Basins or fountains connected thereto; Sinks
- E03C1/20—Connecting baths or bidets to the wastepipe
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03C—DOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER; SINKS
- E03C1/00—Domestic plumbing installations for fresh water or waste water; Sinks
- E03C1/12—Plumbing installations for waste water; Basins or fountains connected thereto; Sinks
- E03C1/26—Object-catching inserts or similar devices for waste pipes or outlets
- E03C1/262—Object-catching inserts or similar devices for waste pipes or outlets combined with outlet stoppers
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- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Sink And Installation For Waste Water (AREA)
Abstract
The invention provides a bathroom drainage structure and a construction method, which can easily realize overall bathroom without raising the floor of the bathroom. A drainage structure (6) of a bathroom unit (1) is provided with: a floor drain adapter (61) having an adapter tube section (610) formed in a tubular shape and an outer flange (611) protruding in a horizontal direction from the outer peripheral surface of the upper portion of the adapter tube section (610); and a floor drain cover (63) disposed above the floor drain adapter (61), wherein the adapter tube section (610) of the floor drain adapter (61) is connected to the upper end of the drain tube (11) on the drain side in a state of being inserted into the drain opening (21) of the floor section (20), and the outer flange (611) is fixed to the upper side of the floor section (20).
Description
Technical Field
The present invention relates to a drainage structure and a construction method for a bathroom unit that guides drainage from a floor portion to a drainage pipe.
Background
A floor portion of the bathroom unit is provided with a drain port for discharging shower drain, toilet drain, and the like to the outside. For example, patent document 1 discloses the following configuration in a drain device of a bathroom unit in which a bathtub is provided on a side of a bath room of a waterproof pan. A through hole portion is formed at a lower position of the waterproof tray corresponding to a drain plug of the bathtub. A drain socket is fitted into the through hole portion, and a drain trap is connected to the drain socket on the back side of the waterproof disk. A drain plug of a bathtub is connected to a drain socket by a flexible connection joint.
The floor portion of the bathroom unit is fixed to the floor slab by a wet construction method or a dry construction method. Next, conventional examples of the wet construction method and the dry construction method will be described with reference to the drawings. First, an example of constructing the floor portion of the bathroom unit by a wet construction method will be described with reference to fig. 14A to 14E. In a multi-family house or the like, a drain pipe connected to a drain port is generally a path that is led downstairs through a floor slab such as a concrete slab. First, as shown in fig. 14A, a floor slab 10 having openings 101 and 102 is formed, and as shown in fig. 14B, after the drain side drain pipe 11 is passed through the opening 101, the opening is fixed by mortar 13 so as to fill the opening, and the toilet side drain pipe 12 is fixed to the opening 102. As shown in fig. 14C, the floor portion 120 is disposed by applying concrete 150 to the floor slab 10. As shown in fig. 14D, the drain port side drain pipe 11 and the toilet side drain pipe 12 are made to have the same length, the floor drain receiver 106 is attached to the drain port side drain pipe 11, and the drain structure 108 is attached to the toilet side drain pipe 12. Note that, the toilet side drain pipe 12 may be cut to an appropriate height without using the drain structure 108 and directly connected to the toilet. Fig. 14E shows the bathroom unit connecting the toilet bowl 7 and the toilet side drain pipe 12 via the drain structure 108 after the process described in fig. 14D.
Next, a construction example of a dry construction method using the horizontal pulling pipe shown in fig. 15 will be described. In the method shown in fig. 15, a pipe 211 extending in the horizontal direction is disposed on floor slab 10, and this pipe 211 is connected to drain port 206 of floor portion 220 and drainage structure 207 for a toilet. In the dry construction method, water discharge port 206, water discharge structure 207, and pipe 211 may be connected to the floor part in advance at the time of shipment, and this method has an advantage of shortening workability and construction period as compared with the wet construction method.
Documents of the prior art
Patent document
Patent document 1: japanese Kokai publication Hei-6-87478
Disclosure of Invention
Problems to be solved by the invention
In order to improve workability and shorten a construction period, it is conceivable to change the wet construction method described with reference to fig. 14A to 14E to a dry construction method using a whole bathroom. However, in the structure in which the drain pipe extends from the lower side of the floor slab 10 as shown in fig. 14A to 14E, if the drain pipe is installed in the floor portion in the factory in advance, the drain pipe may interfere with other members at the time of transportation or installation of the floor portion, and the transportation performance and the workability may be deteriorated. On the other hand, the method of horizontally pulling the drain pipe described in fig. 15 is a dry construction method, but requires a space for passing the pipe below the floor portion, and therefore, the bathroom floor is higher than the wet construction method, and the entrance step of the bathroom door is also higher. In addition, in a building in which it is difficult to freely arrange a drain pipe standing from a floor as shown in fig. 14A to 14E, it is necessary to cope with a positional deviation between the drain pipe and the floor due to a product error, a construction error, or the like in the field. Patent document 1 can absorb strain generated by the flexible joint, but the joint is subjected to a load due to the strain, and even if the strain generated above the floor portion can be absorbed, it is difficult to cope with a positional deviation of a connection portion between a drain pipe rising from the floor slab below the floor portion and the floor portion. Patent document 1 originally relates to a bathtub drain structure, and does not assume a drain pipe rising from a floor as shown in fig. 14A to 14E.
The present invention has been made in view of the above problems, and an object thereof is to provide a bathroom drainage structure and a construction method, which can easily realize a bathroom unit without raising a bathroom floor.
Means for solving the problems
The present invention relates to a drain structure of a bathroom unit, in which an opening portion of a floor portion (bed portion in japanese) provided in a floor is connected to a drain pipe erected from the floor, the drain structure of the bathroom unit including: a floor drain adapter having an adapter tube portion formed in a tubular shape and an outer flange projecting in a horizontal direction from an upper outer peripheral surface of the adapter tube portion; and a floor drain cover disposed above the floor drain adapter, wherein the adapter tube portion of the floor drain adapter is connected to an upper end portion of the drain tube in a state of being inserted into the opening portion of the floor portion, and the outer flange is fixed to an upper side of the floor portion.
Drawings
Fig. 1 is a diagram showing a configuration of a bathroom unit to which a drainage structure according to an embodiment of the present invention is applied.
Fig. 2 is an exploded sectional view showing the structure of the drain unit in the shower area according to the present embodiment.
Fig. 3 is a sectional view showing the state of installation of the drain portion in the shower area according to the present embodiment.
Figure 4 is a top view of the floor drain adapter of the present embodiment.
Figure 5 is a bottom view of the floor drain adapter of the present embodiment.
Fig. 6 is a plan view of the floor drain frame according to the present embodiment.
Fig. 7 is a bottom view of the floor drain frame according to the present embodiment.
Fig. 8 is a plan view of the floor drain cover of the present embodiment.
Fig. 9 is an exploded sectional view showing the structure of the water discharge structure of the toilet bowl according to the present embodiment.
Fig. 10 is a sectional view showing an installation state of the drainage structure of the toilet bowl according to the present embodiment.
Fig. 11 is a plan view of the toilet coupling of the present embodiment.
Fig. 12 is a plan view schematically showing a state of use of the toilet coupling according to the present embodiment.
Fig. 13A is a schematic view of a step of forming a floor slab having an opening according to the present embodiment.
Fig. 13B is a schematic view of the step of fixing the first drain pipe and the toilet drain pipe to the opening portion of the present embodiment via mortar.
Fig. 13C is a schematic view of a process of providing the floor portion of the present embodiment.
Fig. 13D is a schematic view of a process of providing the floor drain adapter, the floor drain frame, the floor drain cover, and the toilet adapter on the floor portion according to the present embodiment.
Fig. 14A is a schematic view of a step of forming a floor slab having a conventional opening.
Fig. 14B is a schematic view of a step of fixing the drain port-side drain pipe and the toilet-side drain pipe to the conventional opening portion via mortar.
Fig. 14C is a schematic view of a step of installing a floor by a conventional wet construction method.
Fig. 14D is a schematic view of a process of providing a floor drain receptacle and a connection structure of a toilet in a conventional floor portion.
Fig. 14E is a schematic view showing a bathroom unit constructed by a conventional construction method.
Fig. 15 is a schematic view showing a floor portion provided by a dry construction method using a conventional horizontal pulling pipe.
Detailed Description
Preferred embodiments of the present invention will be described below with reference to the accompanying drawings. Fig. 1 is a diagram showing a configuration of a bathroom unit 1 to which a drainage structure 6 according to an embodiment of the present invention is applied.
As shown in fig. 1, the shower area 2 and the toilet area 3 of the bathroom unit 1 are separated by a partition 4. The floor surface of the bathroom unit 1 is formed by the floor portion 20. The floor portion 20 of the present embodiment is manufactured by molding FRP. FRP is a Fiber Reinforced plastic, and English letters are expressed in Fiber-Reinforced Plastics. A drain structure 6 for flowing drain water is provided in the shower area 2 of the floor portion 20, and a toilet bowl 7 is disposed in the toilet area 3.
The floor portion 20 is formed with a drain port 21 corresponding to the drain port side drain pipe 11. The drain port 21 is connected to the drain port side drain pipe 11 via the drain structure 6. The drain water flowing into the drain structure 6 passes through the drain side drain pipe 11 and flows to the outside through the lower side of the floor slab 10. The floor portion 20 of the present embodiment is formed with inclined surfaces 27, 28 inclined so as to descend as approaching the drainage structure 6.
A connection port 22 through which the toilet side drain pipe 12 passes is formed in the floor portion 20 at a position where the toilet bowl 7 is disposed. The connection port 22 is provided with a drain structure 8 of the toilet bowl 7, and the toilet bowl 7 is connected to the toilet side drain pipe 12 via the drain structure 8. The toilet side drain pipe 12 is sent to the outside of the bathroom unit 1 through the lower side of the floor 10.
Next, the structure of the drain structure 6 provided in the shower area 2 will be described. Fig. 2 is an exploded cross-sectional view showing the structure of the drain structure 6 of the shower area 2 according to the present embodiment. Fig. 3 is a sectional view showing an installation state of the drain structure 6 in the shower area 2 according to the present embodiment.
As shown in fig. 2 and 3, the drain port side drain pipe 11 connected to the drain structure 6 is fixed to the floor slab 10 in a state where the upper end portion thereof is positioned above the upper surface of the floor slab 10. The floor slab 10 is a floor structure made of, for example, reinforced concrete or the like. In the present embodiment, the drain port side drain pipe 11 is held to the floor slab 10 via the mortar 13 from the viewpoint of waterproofness and sound insulation. The portion of the floor portion 20 where the drain opening 21 is formed is a recessed portion 25, and the drain opening 21 is located at a position one step lower than the surroundings. Floor tiles 26 are disposed outside the recessed portion 25 of the floor portion 20. The floor portion 20 is not limited to the floor surface formed by the floor tiles 26. For example, the upper surface of the floor portion may be directly formed as a floor surface.
The structure of the drainage structure 6 will be explained. The drain structure 6 of the present embodiment mainly includes a floor drain adapter 61 disposed in the drain port side drain pipe 11, a floor drain frame 62 covering the floor drain adapter 61, and a floor drain cover 63 disposed above the floor drain frame 62.
The floor drain adapter 61 is provided at the upper end of the drain port side drain pipe 11. The floor drain adapter 61 of the present embodiment is made of a resin material such as vinyl chloride.
As shown in fig. 3 to 5, the floor drain adapter 61 is composed of an adapter tube portion 610 formed in a cylindrical shape, an outer flange 611 formed at an upper end portion of the adapter tube portion 610, and an inner flange 612 formed at an upper end portion of the adapter tube portion 610. The adapter tube portion 610, the outer flange 611, and the inner flange 612 are formed as an integral component.
An opening 615 at the upper end of the floor drain adapter 61 is formed by the inner flange 612. In the present embodiment, the opening portion 615 is formed to be smaller than the inner diameter of the adapter tube portion 610. In the installed state, the lower surface of the inner flange 612 and the upper end surface of the drain-side drain pipe 11 face each other with a gap therebetween. The inner flange 612 and the drain side drain pipe 11 may be disposed without a gap in the vertical direction, but in the cutting operation of the drain side drain pipe 11 on site, the lower surface of the inner flange 612 is preferably disposed with a gap from the upper end surface of the drain side drain pipe 11 in order to absorb variations such as the cut surface not becoming horizontal.
A floor drain frame 62 is provided at the upper end of the floor drain adapter 61. The floor drain frame 62 of the present embodiment is made of metal such as stainless steel or resin such as FRP.
As shown in fig. 6, the floor drain frame 62 is formed in a rectangular ring shape in a plan view, and a rectangular opening 625 is formed in the center. As shown in fig. 3, a square tubular portion 621 communicating with the opening 625 is formed at the center of the lower portion of the floor drain adapter 61. The opening 625 is not limited to a rectangular shape, and may be a circular shape or another polygonal shape. In the present embodiment, the lower end position (upper two-dot chain line in fig. 3) of the square tubular portion 621 is configured to be located above the upper end position (lower two-dot chain line in fig. 3) of the drain-side drain pipe 11, but the present invention is not limited to this configuration. From the viewpoint of preventing water from entering between the drain port side drain pipe 11 and the floor drain adapter 61, the lower end position of the square tubular portion 621 of the floor drain frame 62 may be located below the upper end position of the drain port side drain pipe 11. For example, the lower end position of the square tubular portion 621 can be positioned below the upper end position of the drain-side drain pipe 11 by extending the square tubular portion 621 itself downward or attaching another member to the lower portion of the square tubular portion 621. In the cutting operation of the drain side drain pipe 11, the upper portion of the drain side drain pipe 11 may be left long and cut so that the upper end position of the drain side drain pipe 11 is located above the lower end position of the cylindrical portion 621. Alternatively, the following structure may be adopted: by extending the lower end surface of the inner flange 612 downward, water is prevented from entering between the drain port-side drain pipe 11 and the floor drain adapter 61.
A slope 622 is formed around the opening 625 of the floor drain frame 62. The inclined surface 622 of the floor drain frame 62 is inclined so as to descend as approaching the opening 625 from the upper end surface. The inclined surface 622 of the present embodiment is divided into four regions corresponding to the 4 sides of the opening 625.
As shown in fig. 7, an installation surface 623 facing the upper surface of the floor portion 20 is provided at the lower end portion of the floor drain frame 62. The installation surfaces 623 are formed on the 4 sides of the floor drain frame 62 in the rear view.
The floor drain cover 63 is placed on the floor drain frame 62. The floor drain cover 63 of the present embodiment is made of metal such as stainless steel or resin such as FRP.
As shown in fig. 8, the floor drain cover 63 is a rectangular punched metal formed with through holes 630, 631. In the floor drain cover 63 of the present embodiment, circular through holes 631 are formed in a vertical and horizontal arrangement, and the through hole 630 formed in the center has a larger diameter than the other through holes 631. In cleaning work or the like, the floor drain cover 63 can be easily removed by inserting a finger or an instrument into the through hole 630 having a larger diameter than the other through holes 631. The shape and arrangement of the through holes 630 and 631 may be changed as appropriate.
The installation state of the drainage structure 6 will be described with reference to fig. 3. First, the fixing of the floor drain adapter 61 will be explained. In a state where the adapter tube portion 610 is housed inside the drain opening 21 and the upper end portion of the drain port side drain pipe 11 is fitted inside the adapter tube portion 610, the inner peripheral surface of the adapter tube portion 610 and the outer peripheral surface of the drain port side drain pipe 11 are fixed by adhesion with an adhesive or the like. In the present embodiment, the drain-side drain pipe 11 is molded from a vinyl chloride-based material, and therefore a vinyl chloride-based adhesive is used.
A water seal packing 65 is provided on the lower surface of the outer flange 611 of the floor drain adapter 61, and the gap between the lower surface of the outer flange 611 and the bottom surface of the recess 25 is filled with the water seal packing 65. A seal 67 made of a material such as silicon is formed on the outer peripheral surface of the outer flange 611.
The fixing of the floor drain frame 62 will be explained. An annular water seal packing 64 is disposed in a space 300 between the back surface of the inclined surface 622 of the floor drain frame 62 and the upper surface of the outer flange 611. The waterproof packing 66 is also disposed on the installation surface 623 of the floor drain frame 62, and the gap between the installation surface 623 and the bottom surface of the recess 25 is filled. The floor drain frame 62 is also formed with a sealing member 68 using a material such as silicon on its outer side surface. In the present embodiment, the gap between the recessed portion 25 and the floor tile 26 is also filled with the sealing material 68.
The floor drain adapter 61 and the floor drain frame 62 fixed as described above are provided with a floor drain cover 63. As shown by an arrow 100 of a chain line in fig. 3, water flowing in from the through holes 630 and 631 of the floor drain cover 63 is guided to the opening 625 by the inclined surface 622 of the floor drain frame 62, and flows from the opening 625 to the drain port side drain pipe 11 through the inside of the adapter tube portion 610. As indicated by the dotted arrow 103, even if water flowing back from the drain port side drain pipe 11 tries to enter between the inclined surface 622 of the drain frame 62 and the outer flange 611 of the drain adapter 61, the water is stopped by the annular water-stop packing 64.
Next, the drain structure 8 of the toilet bowl 7 will be described. Fig. 9 is an exploded sectional view showing the structure of the drain structure 8 of the toilet bowl 7 according to the present embodiment. Fig. 10 is a sectional view showing an installation state of the drain structure 8 of the toilet bowl 7 according to the present embodiment.
As shown in fig. 9 and 10, the connection port 22 formed in the toilet area 3 in the floor portion 20 corresponds to the position of the toilet-side drain pipe 12. The toilet side drain pipe 12 is held to the floor 10 via mortar 13.
The toilet bowl 7 includes a toilet side drain pipe 71 for discharging the washing water. As shown in fig. 10, the toilet side drain pipe 71 is fixed in a state where the lower end portion thereof is fitted into the toilet side drain pipe 12. The toilet adapter 72 is disposed in the toilet side drain pipe 12.
The toilet coupling 72 is illustrated. As shown in fig. 11, the toilet coupling 72 is a rectangular plate-like member having a circular through hole 721 formed in the center thereof. As shown in fig. 12, the inner diameter of the through hole 721 of the toilet coupling 72 is formed smaller than the inner diameter of the connection port 22 of the floor portion 20, and the outer diameter of the toilet-side drain pipe 12 is smaller than the inner diameter of the through hole 721. An annular water seal packing 73 is disposed outside the through hole 721 on the lower surface of the toilet adapter 72.
The setting state of the toilet coupling 72 will be described with reference to fig. 10. The toilet adapter 72 is placed on the upper surface of the floor tile 26 in a state where the toilet-side drain pipe 12 is inserted through the through hole 721, and the water stop pad 73 positioned on the lower surface of the toilet adapter 72 is in contact with the upper surface of the floor tile 26 outside the connection port 22. In this state, the seal 75 using a material such as silicon is formed so as to close the gap between the outer peripheral surface of the toilet side drain pipe 12 and the through hole 721. Further, a seal 76 made of a material such as silicon is also formed in the gap between the outer peripheral portion of the toilet adapter 72 and the floor tile 26. The toilet side drain pipe 71 is inserted into the toilet side drain pipe 12, and the toilet bowl 7 is connected to the toilet side drain pipe 12.
Next, the procedure of constructing floor portion 20 in the case where drain structure 6 of shower area 2 and drain structure 8 of toilet area 3 of the above-described embodiment are applied will be described with reference to fig. 13A to 13D.
As shown in fig. 13A, the following floor slab 10 is first formed: the floor slab 10 has an opening 101 through which the rising portion of the drain port side drain pipe 11 passes and an opening 102 through which the rising portion of the toilet side drain pipe 12 passes. The floor slab 10 is reinforced concrete. The method of forming openings 101 and 102 may be performed by machining after floor slab 10 is formed, or concrete may be formed on floor slab 10 so as to form the openings, and the method is not particularly limited.
As shown in fig. 13B, the drain side drain pipe 11 is passed through the opening 101, the toilet side drain pipe 12 is passed through the opening 102, and the mortar 13 is applied to the openings 101 and 102 to fix the drain side drain pipe 11 and the toilet side drain pipe 12.
As shown in fig. 13C, the drain port 21 of the floor portion 20 is provided on the upper surface of the floor slab 10 so as to be aligned with the position of the drain port-side drain pipe 11 and the connection port 22 is provided so as to be aligned with the position of the toilet-side drain pipe 12. In a state where the legs 29 of the floor portion 20 are provided on the upper surface of the floor slab 10, the drain port side drain pipe 11 penetrates the drain port 21 and the toilet side drain pipe 12 penetrates the connection port 22.
As shown in fig. 13D, in a state where the floor portion 20 is provided, the drain adapter 61, the drain frame 62, and the drain cover 63 are provided in the drain port side drain pipe 11, and the toilet adapter 72 is provided in the toilet side drain pipe 12. Further, a cutting process is performed to make the lengths of the drain side drain pipe 11 and the toilet side drain pipe 12 uniform as necessary. The method of fixing the floor drain adapter 61, the floor drain frame 62, and the floor drain cover 63, and the method of fixing the toilet adapter 72 are as described above in the setting state. The toilet side drain pipe 71 of the toilet bowl 7 is connected to the toilet side drain pipe 12, and the state shown in fig. 1 is obtained.
The above embodiment is configured as follows.
That is, the drain structure 6 of the bathroom unit 1 includes the floor drain adapter 61 and the floor drain cover 63, the floor drain adapter 61 has the adapter tube portion 610 formed in a tubular shape and the outer flange 611 protruding in the horizontal direction from the upper outer peripheral surface of the adapter tube portion 610, the floor drain cover 63 is disposed above the floor drain adapter 61, the adapter tube portion 610 of the floor drain adapter 61 is connected to the upper end portion of the drain port side drain tube 11 in a state of being inserted through the drain port 21 of the floor portion 20, and the outer flange 611 is fixed to the upper side of the floor portion 20.
The construction method of the bathroom unit 1 of the present embodiment includes: a step of providing floor section 20 to floor slab 10 so that drain port 21 is aligned with drain port side drain pipe 11 rising from floor slab 10; a step of inserting the adapter tube portion 610 of the floor drain adapter 61 into the drain port 21 of the floor portion 20 to connect to the upper end portion of the drain port side drain tube 11, and fixing the outer flange 611 to the upper side of the floor portion 20; fixing a floor drain frame 62 having an opening 625 communicating with the inside of the adapter tube portion 610 to the floor portion 20 above the floor drain adapter 61; and a step of providing the floor drain cover 63 to the floor drain frame 62.
Accordingly, even if the drain port 21 and the drain port side drain pipe 11 of the floor portion 20 are laterally displaced from the assumed positions due to a product error, a construction error, or the like, the state in which the drain port 21 is covered with the outer flange 611 of the floor drain adapter 61 is maintained, and therefore, water leakage through the drain port 21 of the floor portion 20 can be prevented. Even if the drain side drain pipe 11 having a diameter determined by a predetermined reference varies in diameter due to manufacturing errors, the error can be absorbed by the adapter tube portion 610 connected to the drain side drain pipe 11. Further, after the facility worker performs piping work from downstairs, the work of the bathroom is performed by the bathroom worker in a normal flow, but according to the configuration of the present embodiment, the dry work method using the entire bathroom can be easily realized by using the floor drain adapter 61 without changing the conventional process. Even when the position of a multi-dwelling house or a drain pipe cannot be changed, the entire bathroom (dry construction method) can be promoted, and the construction period can be shortened significantly as compared with the case where the bathroom is constructed by a wet construction method.
The drain structure 6 of the bathroom unit 1 of the present embodiment includes the floor drain frame 62, the floor drain frame 62 is fixed to the floor portion 20 above the floor drain adapter 61 and has the opening portion 625 communicating with the inside of the adapter tube portion 610, the floor drain frame 62 supports the floor drain cover 63 from below, and the vertical space 300 is formed between the floor drain frame 62 and the floor drain adapter 61 outside the opening portion 625.
Thus, even if the drain port 21 and the drain port side drain pipe 11 of the floor portion 20 are displaced in the vertical direction from the assumed positions due to a product error, a construction error, or the like, the displacement can be absorbed by the space between the floor drain adapter 61 and the floor drain frame 62.
The drain structure 6 of the bathroom unit 1 of the present embodiment includes the water seal packing 64, and the water seal packing 64 is disposed in the space 300 formed between the floor drain frame 62 and the floor drain adapter 61 and surrounds the outside of the opening 625.
This prevents water from flowing between the floor portion 20 and the floor slab 10 by the water stop packing 64, and allows the vertical positional displacement to be absorbed by the elastic force of the water stop packing 64.
In the drain structure 6 of the bathroom unit 1 according to the present embodiment, the floor drain frame 62 is formed with the inclined surface 622 that descends from the outside toward the opening 625, and the space 300 between the floor drain frame 62 and the floor drain adapter 61 is formed below the inclined surface 622.
This makes it possible to form a space between the floor drain frame 62 and the floor drain adapter 61 and efficiently guide the drainage to the opening 625 by the inclination of the inclined surface 622. In the present embodiment, the slope of the slope 622 is greater than the slopes 27, 28 of the floor portion 20, and the drainage water reaching the drainage structure 6 from the floor portion 20 can be guided more efficiently.
In the present embodiment, the floor drain adapter 61 includes an inner flange 612 extending horizontally from the upper inner peripheral surface of the adapter tube portion 610, and at least a part of the inner flange 612 vertically overlaps the upper end surface of the drain port-side drain tube 11.
This can reliably prevent the drain water that has entered the adapter tube portion 610 from leaking to the outside of the drain port side drain pipe 11.
The preferred embodiments of the present invention have been described above, but the present invention is not limited to the above embodiments and can be modified as appropriate. Depending on the case, the floor drain frame 62 may be omitted from the drain structure 6, and the floor drain cover 63 may be disposed on the floor drain adapter 61. In the above embodiment, the upper end portion of the drain port side drain pipe 11 is located inside the adapter tube portion 610, but the present invention is not limited to this configuration. For example, the shape of the floor drain adapter, the drain port side drain pipe, or both may be changed so that the adapter tube portion is positioned inside the drain port side drain pipe.
Claims (6)
1. A drain structure of a bathroom unit, wherein an opening provided in a floor portion of a floor is connected to a drain pipe erected from the floor,
the drainage structure of the bathroom unit comprises:
a floor drain adapter having an adapter tube portion formed in a tubular shape and an outer flange projecting in a horizontal direction from an upper outer peripheral surface of the adapter tube portion; and
a floor drain cover disposed above the floor drain adapter,
the adapter tube portion of the floor drain adapter is connected to an upper end portion of the drain pipe in a state of being inserted into the opening portion of the floor portion, and the outer flange is fixed to an upper side of the floor portion.
2. The drain structure of a bathroom unit of claim 1, wherein,
the drain structure of the bathroom unit includes a floor drain frame fixed to the floor portion above the floor drain adapter and having an opening portion communicating with the inside of the adapter tube portion, the floor drain frame supporting the floor drain cover from below,
a space is formed outside the opening portion and between the floor drain frame and the floor drain adapter.
3. The drain structure of a bathroom unit of claim 2, wherein,
the drain structure of the bathroom unit includes a water-stopping pad disposed in the space formed between the floor drain frame and the floor drain adapter and surrounding the outside of the opening.
4. The drain structure of a bathroom unit of claim 2 or 3, wherein,
the floor drain frame is formed with a slope that descends from the outside toward the opening, and the space is formed below the slope.
5. The drain structure of a bathroom unit of any one of claims 1 to 4,
the floor drain adapter has an inner flange projecting in a horizontal direction from an upper inner peripheral surface of the adapter cylinder portion,
at least a part of the inner flange overlaps an upper end surface of the drain pipe in the vertical direction.
6. A construction method of a bathroom unit, comprising:
a step of providing a floor portion on a floor slab so that an opening portion is aligned with a position of a drain pipe rising from the floor slab;
inserting the adapter cylinder portion of the floor drain adapter having an adapter cylinder portion formed in a cylindrical shape and an outer flange projecting in a horizontal direction from an upper outer peripheral surface of the adapter cylinder portion into the opening portion of the floor portion to be connected to an upper end portion of the drain pipe, and fixing the outer flange to an upper side of the floor portion;
fixing a floor drain frame having an opening communicating with the inside of the adapter tube portion to the floor portion above the floor drain adapter; and
and arranging a floor drain cover on the floor drain frame.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2017-217914 | 2017-11-13 | ||
| JP2017217914A JP2019090181A (en) | 2017-11-13 | 2017-11-13 | Drainage structure of bathroom unit and construction method |
| PCT/JP2018/041875 WO2019093516A1 (en) | 2017-11-13 | 2018-11-12 | Bathroom unit drainage structure and construction method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111344462A true CN111344462A (en) | 2020-06-26 |
Family
ID=66438904
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201880072942.7A Pending CN111344462A (en) | 2017-11-13 | 2018-11-12 | Drainage structure of bathroom unit and construction method |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP2019090181A (en) |
| CN (1) | CN111344462A (en) |
| WO (1) | WO2019093516A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113047402A (en) * | 2021-03-30 | 2021-06-29 | 肇庆高新区格兰新材料科技有限公司 | Floor drain device for environment-friendly waterproof plate and application, installation method and installation tool thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0932076A (en) * | 1995-07-14 | 1997-02-04 | Matsushita Electric Works Ltd | Structure of piping connecting part of floor of sanitary room |
| JPH09125481A (en) * | 1995-11-01 | 1997-05-13 | Inax Corp | Drain apparatus for tile floor surface |
| CN2393920Y (en) * | 1999-07-15 | 2000-08-30 | 重庆大学 | Valve wastewater filter |
| US20050155142A1 (en) * | 2004-01-20 | 2005-07-21 | Peter Colpitts | Sink basket and plug assembly |
| CN104712151A (en) * | 2015-03-31 | 2015-06-17 | 中民筑友有限公司 | Unit bathroom |
-
2017
- 2017-11-13 JP JP2017217914A patent/JP2019090181A/en active Pending
-
2018
- 2018-11-12 CN CN201880072942.7A patent/CN111344462A/en active Pending
- 2018-11-12 WO PCT/JP2018/041875 patent/WO2019093516A1/en active Application Filing
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0932076A (en) * | 1995-07-14 | 1997-02-04 | Matsushita Electric Works Ltd | Structure of piping connecting part of floor of sanitary room |
| JPH09125481A (en) * | 1995-11-01 | 1997-05-13 | Inax Corp | Drain apparatus for tile floor surface |
| CN2393920Y (en) * | 1999-07-15 | 2000-08-30 | 重庆大学 | Valve wastewater filter |
| US20050155142A1 (en) * | 2004-01-20 | 2005-07-21 | Peter Colpitts | Sink basket and plug assembly |
| CN104712151A (en) * | 2015-03-31 | 2015-06-17 | 中民筑友有限公司 | Unit bathroom |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113047402A (en) * | 2021-03-30 | 2021-06-29 | 肇庆高新区格兰新材料科技有限公司 | Floor drain device for environment-friendly waterproof plate and application, installation method and installation tool thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2019093516A1 (en) | 2019-05-16 |
| JP2019090181A (en) | 2019-06-13 |
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Application publication date: 20200626 |
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