JP2002301296A - Fireproofing structure around waterproofing pan - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a fireproofing structure around waterproofing pan, with which fire resistance around a waterproofing pan to place a washing machine can be easily and speedily secured. SOLUTION: A fireproofing wall 6 is provided on a fireproofing floor 4 and on this fireproofing floor 4, a waterproofing pan 12 is installed inside the fireproofing wall 6. Inside the waterproofing pan 12, a drain basin 15 connected to a drain port 16 of a washing machine 11 is provided and drawn pipes 9 and 10 communicated inside the fireproofing wall 6 are connected to the drain basin 15.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fire prevention structure around a waterproof pan on which a washing machine is placed.

[0002]

2. Description of the Related Art For example, a washing machine has a waterproof pan set on the floor and is placed on the waterproof pan. Water discharged from the washing machine is drained from a drainage basin provided on the lower surface of the waterproof pan. Through the drainage pipe connected to the drainage basin to be drained. By the way, in a building having such a drainage basin or drainage pipe, for example, in a building such as an apartment requiring a semi-fireproof specification, floors dividing the upper and lower floors are plywood on a joist, a cement board as a fireproof material, A fire-resistant floor is formed by attaching a floor finishing material, and a gypsum board is attached to the wall to form a fire-resistant wall, thereby forming a fireproof structure. However, since the drainage basin and the drainpipe are provided through the refractory floor, it is necessary to perform a fireproof treatment on the part of the drainage basin and the drainpipe that penetrates the floor. Therefore, a fire prevention structure around the waterproof pan as shown in FIG. 5 is provided.
That is, a waterproof pan 63 is installed on the fire-resistant floor 61 inside the fire-resistant wall 62, and a drainage basin 64 connected to a drain port of the washing machine is provided on a lower surface of the waterproof pan 63. The drainage basin 64 is disposed below the refractory floor 61 through a through hole 61 a formed in the refractory floor 61. Under the refractory floor 61, a gypsum board 65 as a refractory material is attached so as to surround a drainage basin 64 installed under the refractory floor 61. The fireproof treatment is applied to ensure the fire resistance around the waterproof pan.

[0003]

In the fire prevention structure around the waterproof pan described above, a gypsum board 65 is attached so as to surround the drainage basin 64, but the drainage basin 64 is installed below the fireproof floor 61. So, drainage basin 64
In order to attach the gypsum board 65 to the plaster board 65, the operator must work while assembling the gypsum board 65 under the narrow fire floor 61 so as to surround the drainage basin 64, which is troublesome. The present invention has been made in view of the above circumstances, and has as its object to provide a fire protection structure around a waterproof pan that can easily and quickly ensure fire resistance around the waterproof pan.

[0004]

In order to solve the above-mentioned problems, according to the present invention, for example, as shown in FIG. 1, a fireproof structure around a waterproof pan 12 on which a washing machine 11 is placed is provided. A fire-resistant wall 6 is provided on the floor 4, and a waterproof pan 12 is installed on the fire-resistant floor 4 inside the fire-resistant wall 6, and is connected to a drain port 16 of a washing machine 11 in the waterproof pan 12. A drainage basin 15 is provided.
A drain pipe (for example, a horizontal drain pipe 9) inserted into the fire-resistant wall 6 is connected.

According to the first aspect of the present invention, on the refractory floor 4,
A waterproof pan 12 is installed inside the fire-resistant wall 6,
The drainage pipe 9 inserted into the fire-resistant wall 6 is connected to the drainage basin 15 in the waterproof pan 12, so that the drainage pipe 9 is disposed below the fire-resistant floor 61 in order to perform a fire-resistant treatment on the floor penetrating part, unlike the related art. It is not necessary to perform a complicated work of attaching the gypsum board 65 under the fireproof floor 61 so as to surround the drainage basin 64 thus formed, and the waterproof pan 12 provided with the drainage basin 15 is
Just above and inside the refractory wall 6, the drainage basin 15
Is surrounded by the refractory floor 4 and the refractory wall 6. Therefore, fire resistance around the waterproof pan 12 can be easily secured. Further, asbestos 34,5 is provided so as to cover the periphery of the drainage basin 15 in comparison with claims 3-5 described later.
Since it is not necessary to provide 1, the fireproof treatment around the waterproof pan 12 can be performed more quickly.

On the refractory floor 4, for example, a cement plate 2
Etc. are provided. The fireproof wall 6 is provided with, for example, a gypsum board 5a.

According to a second aspect of the present invention, for example, as shown in FIG. 1, in the fireproof structure around the waterproof pan 12 according to the first aspect, the fireproof wall 6 has a predetermined structure. The drain pipes (for example, the horizontal drain pipe 9 and the vertical drain pipe 10) are vertically arranged between the fire-resistant wall main body 5 and the outer wall material 8. .

According to the second aspect of the present invention, the drain pipes 9, 10 are vertically arranged between the fire-resistant wall main body 5 and the outer wall material 8, so that unlike the conventional case, the drain pipes 9, 10 are located below the narrow fire-resistant floor 61. When the drain pipes 9 and 10 are piped between the refractory wall main body 5 and the outer wall material 8, the work space is wider and the pipe work is easier to perform than when the drain pipes are piped.

According to a third aspect of the present invention, as shown in FIG. 2, for example, in a fire protection structure around a waterproof pan 30 on which a washing machine 11 is placed, a fire wall 26 is provided on a fire floor 24, and the fire floor is provided. 24, a waterproof pan 30 is installed inside the fire-resistant wall 26, and the washing machine 1 is installed in the waterproof pan 30.
A drainage basin 29 connected to the drainage port 16 is provided with its lower end penetrating through the bottom of the waterproof pan 30 and the fireproof floor 24, and extends vertically at the lower end of the drainage basin 29. For example, a vertical drain pipe 37) is connected, and
9, at least around the lower end thereof, the asbestos 34 is provided so as to close the gap between the refractory floor 24 and the lower end of the drainage basin 29.

According to the third aspect of the present invention, the waterproof pan 30 is installed on the refractory floor 24 inside the refractory wall 26, and the drainage basin 29 in the waterproof pan 30 has a lower end provided with the waterproof pan 30. And a drain pipe 37 extending vertically is connected to the lower end, and at least the asbestos 34 is provided at least around the lower end of the drainage basin 29. Unlike the gypsum board 6 under the refractory floor 61 so as to surround a drainage basin 64 arranged under the refractory floor 61 in order to apply a fireproof treatment to the floor penetrating portion.
It is not necessary to perform a complicated operation for attaching the waterproof floor 5, and the waterproof pan 30 provided with the asbestos 34 in advance around the drainage basin 29 is installed inside the fire-resistant wall 26 and on the fire-resistant floor 24. The gap between the drainage basin 29 and the lower end of the drainage basin 29 is closed, and the drainage basin 29 is surrounded by the refractory floor 24, the refractory wall 26, and the asbestos 34. Therefore, fire resistance around the waterproof pan 30 can be easily secured. Further, since the asbestos 34 is directly provided around the drainage basin 29 as compared with the first and second aspects, the fire resistance can be further improved.

The refractory floor 24 is provided with, for example, a cement plate 22 and the like. The fire-resistant wall 26 is provided with, for example, a gypsum board 25a. The asbestos 3
4 is a fibrous material having excellent fire resistance and heat insulation.

According to a fourth aspect of the present invention, as shown in FIG. 2, in the fire prevention structure around the waterproof pan 30 according to the third aspect, the waterproof pan 30 is filled with the asbestos 34. A partition 35 for defining the section 36 is provided.

According to the invention of claim 4, the waterproof pan 3
0, a filling section 36 for filling the asbestos 34
Is provided, the filling section 36 may be filled with asbestos 34, and the filling operation is facilitated, and the asbestos 34 is wasted in the waterproof pan 30 other than the filling section 36. It leads to cost reduction without filling. Further, by filling the filling section 36 with the asbestos 34, the asbestos 34 can be securely fixed around the drainage basin 29.

According to a fifth aspect of the present invention, for example, as shown in FIG. 3, in a fire protection structure around a waterproof pan 46 on which the washing machine 11 is placed, a fire-resistant wall 44 is provided on a fire-resistant floor 42, At 42, a waterproof pan 46 is installed inside the fire-resistant wall 44, and the washing machine 11 is installed in the waterproof pan 46.
A drainage basin 49 connected to the drainage port 16 is provided with its lower end penetrating the bottom of the waterproof pan 46, extends vertically at the lower end of the drainage basin 49, and penetrates the fireproof floor 42. A drain pipe (for example, a vertical drain pipe 52) is connected, and at least around the lower end of the drainage basin 49, asbestos 51 is provided so as to close the gap between the refractory floor 42 and the lower end of the drainage basin 49. It is characterized by having.

According to the invention of claim 5, the refractory floor 42
A waterproof pan 46 is installed on the inside of the fire-resistant wall 44, and a drainage basin 49 in the waterproof pan 46 is provided with its lower end penetrating the bottom of the waterproof pan 46, and extends vertically at the lower end. Drain pipe 5 penetrating through the refractory floor 42
2 is connected, and the asbestos 51 is provided at least around the lower end of the drainage basin 49. Therefore, unlike the conventional case, the drainage basin 64 disposed below the refractory floor 61 in order to perform a fire prevention treatment on the floor penetrating portion. So that it is not necessary to perform a complicated work of attaching the gypsum board 65 under the fireproof floor 61,
The waterproof pan 46 provided with the asbestos 51 in advance around the drainage basin 49 is installed on the inside of the fireproof wall 44 and on the fireproof floor 42, and the gap between the fireproof floor 42 and the lower end of the drainage basin 49 is formed. The gap is closed, and the drainage basin 49 has a fire-resistant floor 42 and a fire-resistant wall 4.
4 and the asbestos 51. Therefore, fire resistance around the waterproof pan 46 can be easily secured.

Further, as compared with the first and second aspects, since the asbestos 51 is provided directly around the drainage basin 49, the fire resistance can be further improved. Further, claim 3
In FIGS. 4 and 4, the lower end of the drainage basin 29 is provided so as to penetrate the refractory floor 24, and as shown in FIG.
4, it was necessary to form the through hole 24a, but in the present invention, the lower end of the drainage basin 49 is not provided so as to penetrate the refractory floor 24, and the lower end penetrates only the bottom of the waterproof pan 50. Therefore, it is not necessary to provide the through hole 24a, and the waterproof pan 50 can be smoothly installed on the fire floor 42.

The refractory floor 42 is provided with, for example, a concrete plate 41 made of lightweight concrete. The fireproof wall 44 is provided with, for example, a gypsum board 43a. The asbestos 51 is fibrous and has excellent fire resistance and heat insulation.

[0018]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, first to third embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a cross-sectional view of a fire protection structure around a waterproof pan according to a first embodiment of the present invention.

As shown in FIG. 1, a cement board 2 as a refractory material is laid on a plywood 1, and a floor finish material 3 is laid on an upper surface of the cement board 2. Is provided. The refractory floor 4 is installed on a concrete plate 7 made of lightweight concrete. The concrete plate 7 constitutes a floor body of a rectangular parallelepiped steel frame unit. The fire-resistant wall 6 includes a fire-resistant wall main body 5 and an outer wall material 8, and the fire-resistant wall main body 5 and the outer wall material 8 are arranged at a predetermined interval. Between the fire-resistant wall main body 5 and the outer wall material 8, a horizontal drain pipe 9 and a vertical drain pipe 10 penetrating through holes 6a formed in the fire-resistant wall main body 5 are arranged vertically. The fire-resistant wall main body 5 is formed by attaching a gypsum board 5a as a fire-resistant material to an inner surface of a rectangular frame.

On the other hand, on the refractory floor 4, a waterproof pan 12 on which a washing machine 11 is placed is installed inside the refractory wall 6.
The waterproof pan 12 is a hollow body having a substantially rectangular shape in cross section, and includes a mounting portion 13 on which the washing machine 11 is mounted. The mounting portion 13 has a peripheral portion 1 rising upward.
4 is provided, and the mounting portion 13 is formed with a through-hole 13a penetrating into the waterproof pan 12 which is a hollow body. A drainage basin 15 is provided in the waterproof pan 12,
A drain hose 17 connected to a drain port 16 of the washing machine 11 is connected to an upper portion of the drain basin 15 by passing through the through hole 13a. Also, on the side of the waterproof pan 12 provided with the drainage basin 15 facing the fireproof wall 6 side, the drainage basin 15 is provided.
Is formed with a through-hole 12a through which the horizontal drain pipe 9 connected to is connected.

The drainage basin 15 temporarily stores the water discharged from the washing machine 11. The drainage basin 15 is made of resin and has a substantially cylindrical shape, and the height thereof is substantially equal to the distance from the bottom of the waterproof pan 12 to the mounting portion 13. Further, a connecting portion 18 is provided on the outer peripheral surface of the drainage basin 15 so as to project at a right angle from the outer peripheral surface.

The connecting portion 18 is formed in a tubular shape and has a through hole 12a formed in a side surface of the waterproof pan 12 facing the fireproof wall 6 side.
And it is connected to a horizontal drain pipe 9 which is piped through a through hole 6a formed in the fire wall main body 5. Connection part 1
8 are connected to the fire wall main body 5 and the outer wall material 8.
Are connected to the vertical drain pipe 10 via a curved elbow 19 provided at a bending point, and are piped up and down. A baseboard 20 is fitted between the side face of the waterproof pan 12 facing the fire-resistant wall 6 and the side face of the fire-resistant wall 6, and thereby, a horizontal drain pipe connected to the connection portion 18 of the drainage basin 15. 9 is not visible from the outside, and the waterproof pan 15 is securely fixed to the side surface of the fireproof wall 6 by the baseboard 20.

According to the first embodiment of the present invention, the waterproof pan 12 is installed inside the fire-resistant wall 6 on the fire-resistant floor 4, Since the inserted drainage pipe 9 is connected, the waterproof pan 12 provided with the drainage basin 15 is simply installed on the fireproof floor 4 and inside the fireproof wall 6. The state is surrounded by the refractory wall 6. Therefore, fire resistance around the waterproof pan 12 can be easily secured.
Further, as compared with the second and third embodiments described later,
Since it is not necessary to provide the asbestos 34 and 51 so as to cover the periphery of the drainage basin 15, the fireproof treatment around the waterproof pan 12 can be performed more quickly.

Also, between the fire-resistant wall main body 5 and the outer wall material 8,
Since the horizontal drain pipe 9 and the vertical drain pipe 10 are piped up and down, unlike the conventional case, the pipe is provided between the fire-resistant wall main body 5 and the outer wall material 8 rather than piped under a narrow fire-resistant floor 61. The work space is wider and the piping work is easier. Further, since the refractory floor 4 is installed on the concrete plate 7, a structure having more excellent fire resistance can be obtained.

FIG. 2 is a sectional view of a fire prevention structure of a drainage facility according to a second embodiment of the present invention. As shown in FIG. 2, a cement board 22 as a refractory material is laid on a plywood 21, and a floor finish material 23 is laid on an upper surface of the cement board 22. A wall 26 is provided. The fire-resistant wall 26 includes a fire-resistant wall main body 25 and an outer wall material 28. The fire-resistant wall main body 25 has a gypsum board 25a as a fire-resistant material attached to an inner surface of a rectangular frame, and an outer wall material 28 is attached to an outer surface. A through hole 24a is formed in the refractory floor 24, and a lower end portion of a drainage basin 29 described later penetrates the through hole 24a. The refractory floor 24 is installed on a concrete plate 27 made of lightweight concrete. This concrete plate 27 is installed at a predetermined distance from the fire-resistant wall 26. That is, the drainage basin 29 provided through the through-hole 24a is
Is arranged on the refractory floor 24 between the edge 27a and the refractory wall 26.

On the other hand, on the refractory floor 24, a waterproof pan 30 on which the washing machine 11 is placed is installed inside the refractory wall 26. The waterproof pan 30 is a hollow body having a substantially rectangular shape in cross section, and includes a mounting portion 31 on which the washing machine 11 is mounted. The mounting portion 13 is provided with a peripheral edge portion 32 rising up. In the hollow waterproof pan 30, a drainage basin 29 is provided with its lower end penetrating the bottom of the waterproof pan 30 and the fireproof floor 24. That is,
The lower end of the drainage basin 29 is provided through a through-hole 30 a formed in the bottom of the waterproof pan 30 and a through-hole 24 a formed in the refractory floor 24. The concrete plate 27 does not exist below the through hole 24a. A drain hose 17 connected to the drain port 16 of the washing machine 11 is connected to the upper part of the drain basin 29 through a through hole 31 a penetrating into a waterproof pan 30 formed in the mounting portion 31. I have.

The drainage basin 29 temporarily stores the water discharged from the washing machine 11. The drainage basin 29 is made of resin and has a substantially cylindrical shape, and a connecting portion 33 extending vertically is provided at a lower end portion of the drainage basin 29. And drainage basin 29
The asbestos 34 is filled around the connection portion 33 so as to close the gap between the refractory floor 24 and the lower end of the drainage basin 29. That is, the asbestos 34 covers the periphery of the drainage basin 29 and the connection portion 33. The asbestos 34 is filled in a filling section 36 defined by a partition 35 provided in the drainage basin 29.

The connecting portion 33 is formed in a tubular shape,
4 and connected to a vertical drain 37 extending vertically. A baseboard 20 is fitted between the side of the waterproof pan 30 facing the fire-resistant wall 26 and the side of the fire-resistant wall 26, and the waterproof pan 30 is securely fixed to the side of the fire-resistant wall 26.

According to the second embodiment of the present invention, the waterproof pan 30 provided with the asbestos 34 is provided around the drainage basin 29 and the connecting portion 33 inside the fireproof wall 26 and the fireproof floor 4.
2, the gap between the refractory floor 24 and the lower end of the drainage basin 29 is closed, and the drainage basin 29 is
4. The state is surrounded by the fire-resistant wall 26 and the asbestos 34. Therefore, fire resistance around the waterproof pan 30 can be easily secured. Further, since the asbestos 34 is provided directly around the drainage basin 29 and the connecting portion 33 as compared with the above-described first embodiment, the fire resistance can be further improved.

Further, a partition 35 for defining a filling section 36 for filling the asbestos 34 is provided in the waterproof pan 30.
Is provided, the filling section 36 may be filled with the asbestos 34, which facilitates the filling operation and reduces the cost without filling the waterproof pan 30 other than the filling section 36 with the useless asbestos 34. Connect. Also, the filling section 36
By filling the asbestos 34 with the asbestos 34, the asbestos 34 can be securely fixed around the drainage basin 29. Further, since the refractory floor 24 is provided on the concrete plate 27, a structure having more excellent durability can be obtained.

FIG. 3 is a sectional view of a fire prevention structure of a drainage facility according to a third embodiment of the present invention. As shown in FIG. 3, a fireproof wall 44 made of a fireproof material is provided on a fireproof floor 42 made of a concrete plate 41 made of lightweight concrete. The fire-resistant wall 44 includes a fire-resistant wall main body 43 and an outer wall material 4.
5 is provided. The fire-resistant wall main body 43 has a gypsum board 43a as a fire-resistant material attached to an inner surface of a rectangular frame, and an outer wall material 45 is attached to an outer surface. The refractory floor 42 includes the refractory wall 44.
It is installed at a predetermined distance from the equipment. That is, a drainage basin 49 to be described later is arranged on the refractory floor 42 between the edge 42 a of the refractory floor 42 and the refractory wall 44. In addition, plywood is laid on the refractory floor 42 on which the later-described waterproof pan 46 is not installed, of the refractory floor 42,
A cement board is laid on the plywood, and a floor finish is laid on the top surface of the cement board. That is, the plywood, the cement board, and the floor finishing material are not laid in advance on the refractory floor 42 on which the waterproof pan 46 is installed.

On the other hand, on the refractory floor 42, a waterproof pan 46 on which the washing machine 11 is placed is installed so as to protrude from the edge 42a of the refractory floor 42 toward the refractory wall 44 side. The waterproof pan 46 is a hollow body having a substantially rectangular shape in cross section,
A placing section 47 on which the washing machine 11 is placed is provided. The mounting portion 47 is provided with a peripheral edge portion 48 rising up. The waterproof pan 4 protruding toward the fire-resistant wall 44
In 6, a drainage basin 49 is provided with its lower end penetrating the bottom of the waterproof pan 46. That is, the drainage basin 49
The lower end of the through hole 4 is formed at the bottom of the waterproof pan 46.
6a. In addition, this drainage basin 49
There is no refractory floor 42 below the floor. A drain hose 17 connected to the drain port 16 of the washing machine 11 is provided above the drain basin 49 with a waterproof pan 4 formed in the mounting portion 47.
6 through a through hole 47a penetrating therethrough.

The drainage basin 49 temporarily stores the water discharged from the washing machine 11. The drainage basin 49 is made of resin and has a substantially cylindrical shape, and a connecting portion 50 extending vertically is provided at a lower end portion of the drainage basin 49. And drainage basin 49
Around the connection portion 50, asbestos 51 is filled in the waterproof pan 46 so as to close the gap between the refractory floor 42 and the lower end of the drainage basin 49. That is, asbestos 51
It covers the periphery of the drainage basin 49 and the connection part 50. The connection part 50 is formed in a tubular shape, and the edge 42 a of the refractory floor 42 is formed.
Is connected to a vertical drainpipe 52 which extends vertically below the refractory floor 42 on the refractory wall 44 side.

According to the third embodiment of the present invention, the waterproof pan 46 provided with the asbestos 51 is provided inside the fireproof wall 44 and the fireproof floor 4 around the drainage basin 49 and the connecting portion 50.
2, the gap between the refractory floor 42 and the lower end of the drainage basin 49 is closed.
2. The state is surrounded by the fire-resistant wall 44 and the asbestos 51. Therefore, fire resistance around the waterproof pan 46 can be easily secured.

In addition, as compared with the first embodiment, the asbestos 51 is provided directly around the drainage basin 49, so that the fire resistance can be further improved.

Further, unlike the second embodiment, the lower end of the drainage basin 49 is not provided to penetrate the refractory floor 24, and the lower end thereof penetrates only the bottom of the waterproof pan 50. Therefore, there is no need to provide the through holes 24a (see FIG. 2), and the waterproof pan 50 can be smoothly installed on the fireproof floor 42.

FIG. 4 is a sectional view of a fire prevention structure of a drainage facility according to a fourth embodiment of the present invention. As shown in FIG. 4, a cement board 72 as a refractory material is laid on a plywood 71, and a floor finishing material 73 is laid on an upper surface of the cement board 72. 8
6 are provided. The refractory floor 74 has through holes 74
a is formed, and a lower end of a drainage basin 75 described later penetrates the through hole 74a.
The refractory floor 74 is installed on a concrete plate 76 made of lightweight concrete. This concrete board 76
Is installed at a predetermined distance from the second-floor partition wall 86. That is, the drainage basin 75 provided through the through hole 74a is
It is arranged on the refractory floor 74 between a and the partition wall 86 on the second floor.

On the other hand, on the refractory floor 74, a waterproof pan 77 on which the washing machine 11 is placed is installed inside a partition wall 86 on the second floor. The waterproof pan 77 is a hollow body having a substantially rectangular shape in a sectional view, and includes a mounting portion 7 on which the washing machine 11 is mounted.
8 is provided. The mounting portion 78 is provided with a peripheral portion 79 rising up. A drainage basin 75 is provided in the hollow waterproof pan 77 so as to penetrate the bottom of the waterproof pan 77 and the fireproof floor 74. That is, unlike the second embodiment, only the upper edge 75a of the drainage basin 75 is provided in the waterproof pan 77, and the portion other than the upper edge 75a of the drainage basin 75 is located at the bottom of the waterproof pan 77. It penetrates the formed through hole 77a and the through hole 74a formed in the refractory floor 74, and is disposed below the refractory floor 74. The concrete plate 7 is provided below the through hole 74a.
6 does not exist. A drain hose 17 connected to the drain port 16 of the washing machine 11 is provided above the drain basin 75.
It is connected via a through hole 77a penetrating into a waterproof pan 77 formed on the mounting portion 78.

The drainage basin 75 temporarily stores the water discharged from the washing machine 11. The drainage basin 75 is made of resin and has a substantially cylindrical shape, and a connecting portion 80 extending vertically is provided at the lower end of the drainage basin 75. The connection unit 80
It is formed in a tubular shape and is connected to a vertical drain pipe 81 that extends vertically and is provided below the refractory floor 74. This vertical drain 81
The pipe is provided in the partition wall 82 on the first floor. That is,
The first-floor partition wall 82 includes two fire-resistant wall bodies 83,
The fire-resistant wall main bodies 83, 83 are arranged at predetermined intervals. The fire-resistant wall main body 83 has a gypsum board 84 as a fire-resistant material attached to an inner surface of a rectangular frame. In addition,
A washroom 85 is provided along the partition wall 82 on the first floor.

According to the fourth embodiment of the present invention, the upper edge 75a of the drainage basin 75 is provided in the waterproof pan 77,
The lower end thereof penetrates the bottom of the waterproof pan 77 and the fireproof floor 74, and such a waterproof pan 77 is installed on the fireproof floor 74. It is arranged under the refractory floor 74 and is in a state surrounded by the refractory floor 74. Therefore, fire resistance around the waterproof pan 77 can be easily secured. Further, as compared with the above-described second and third embodiments, fire resistance can be ensured without providing the asbestos 34 and 51 so as to cover the periphery of the drainage basin 75. Can be quickly performed. Further, since the refractory floor 74 is provided on the concrete plate 76, it is possible to make the structure more durable.

In the fourth embodiment of the present invention, in order to secure fire resistance around the waterproof pan 77,
Even around the lower end of the drainage basin 75, the asbestos 34, 51 may be filled so as to close the gap between the refractory floor 74 and the lower end of the drainage basin 75 as in the second and third embodiments. good.

Although the drainage basins 15, 29, 49, 75 in the first to fourth embodiments of the present invention are made of resin, they may be made of, for example, cast iron. The horizontal drain pipe 9 and the vertical drain pipes 10, 37, 52, 81 may be hard PVC pipes formed from hard vinyl chloride salt, or may be flexible pipes having flexibility.

[0043]

According to the first aspect of the present invention, the drain basin is surrounded by the fire-resistant floor and the fire-resistant wall simply by installing the waterproof pan provided with the drain basin on the fire-resistant floor and inside the fire-resistant wall. State. Therefore, fire resistance around the waterproof pan can be easily secured. Also, claims 3 to described below.
Compared with 5, it is not necessary to provide asbestos so as to cover the periphery of the drainage basin, so that the fireproof treatment around the waterproof pan can be performed more quickly.

According to the second aspect of the present invention, the same effects as those of the first aspect can be obtained, and the drain pipe is vertically arranged between the fire-resistant wall main body and the outer wall material. Therefore, piping the drain pipe between the fire-resistant wall main body and the outer wall material has a larger working space and facilitates the piping work than piping the drain pipe under a narrow fire-resistant floor.

According to the third aspect of the present invention, the waterproof pan provided with asbestos in advance around the drainage basin is installed inside the fireproof wall and on the fireproof floor, and the lower end portions of the fireproof floor and the drainage basin are simply installed. Is closed, and the drainage basin is surrounded by the refractory floor, the refractory wall and the asbestos. Therefore, fire resistance around the waterproof pan can be easily secured. Further, since the asbestos is provided directly around the drainage basin as compared with the first and second aspects, the fire resistance can be further improved.

According to the fourth aspect of the invention, the same effects as those of the third aspect can be obtained, and the filling section can be filled with asbestos, which facilitates the filling operation and reduces waste. This leads to cost reduction without filling with asbestos. In addition, by filling the filling section with asbestos, the asbestos can be reliably fixed around the drainage basin.

According to the fifth aspect of the present invention, the waterproof pan provided with asbestos around the drainage basin in advance is installed inside the fireproof wall and on the fireproof floor, and the lower end of the fireproof floor and the drainage basin are provided. Is closed, and the drainage basin is surrounded by the refractory floor, the refractory wall and the asbestos. Therefore,
Fire resistance around the waterproof pan can be easily secured.
Further, since the asbestos is provided directly around the drainage basin as compared with the first and second aspects, the fire resistance can be further improved. Furthermore, compared to Claims 3 and 4, the lower end of the drainage basin is not provided so as to penetrate the drainage basin,
Since its lower end penetrates only the bottom of the waterproof pan,
The waterproof pan can be smoothly placed on the fire floor.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of a fire prevention structure around a waterproof pan according to a first embodiment of the present invention.

FIG. 2 is a sectional view of a fire prevention structure around a waterproof pan according to a second embodiment of the present invention.

FIG. 3 is a sectional view of a fire prevention structure around a waterproof pan according to a third embodiment of the present invention.

FIG. 4 is a sectional view of a fire prevention structure around a waterproof pan according to a fourth embodiment of the present invention.

FIG. 5 is a sectional view of a conventional fire prevention structure around a waterproof pan.

[Explanation of symbols]

 4,24,42 Fireproof floor 5 Fireproof wall main body 6,26,44 Fireproof wall 8 Exterior wall material 9,10,37,52 Drain pipe 11 Washing machine 12,30,46 Waterproof pan 15,29,49 Drainage basin 16 Drain outlet 34,51 Asbestos 35 Partition wall 36 Filling section

Continued on front page F-term (reference) 2D061 CA03 CC02 CC03 CC12 2E001 DE01 FA04 FA13 HF12 3B155 AA18 BA01 CB32 CD14 MA01 MA02

Claims (5)

[Claims] 1. A fire prevention structure around a waterproof pan on which a washing machine is placed, wherein a fire-resistant wall is provided on a fire-resistant floor, and on the fire-resistant floor, a waterproof pan is installed inside the fire-resistant wall; A drain basin connected to a drain port of the washing machine, wherein a drain pipe inserted into the fire-resistant wall is connected to the drain basin. 2. The fire prevention structure around the waterproof pan according to claim 1, wherein the fire wall includes a fire wall main body and an outer wall material disposed at a predetermined interval, and a space between the fire wall main body and the outer wall material. The fire prevention structure around the waterproof pan, wherein the drainage pipe is vertically arranged. 3. A fire prevention structure around a waterproof pan on which a washing machine is placed, wherein a fire-resistant wall is provided on a fire-resistant floor, and on the fire-resistant floor, a waterproof pan is installed inside the fire-resistant wall; A drainage basin connected to the drain of the washing machine is provided with its lower end penetrating the bottom of the waterproof pan and the fireproof floor, and a drainpipe extending vertically is connected to the lower end of the drainage basin, A fire protection structure around a waterproof pan, wherein asbestos is provided at least around a lower end of the drainage basin so as to close a gap between a refractory floor and a lower end of the drainage basin. 4. The fire prevention structure around the waterproof pan according to claim 3, wherein a partition for defining a filling section for filling the asbestos is provided in the waterproof pan. Fireproof structure around the waterproof pan. 5. A fire prevention structure around a waterproof pan on which a washing machine is placed, wherein a fire-resistant wall is provided on a fire-resistant floor, and a waterproof pan is installed on the inside of the fire-resistant wall on the fire-resistant floor; A drain basin connected to the drain of the washing machine is provided with a lower end portion penetrating the bottom of the waterproof pan, and a drain pipe extending up and down at the lower end portion of the drain basin and penetrating the fireproof floor. Wherein at least the lower end of the drainage basin is provided with asbestos so as to close a gap between the fireproof floor and the lower end of the drainage basin.