JP2003268858A - Rain water draining system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a rain water draining system capable of greatly reducing an earth moving cost such as an excavation work, or embedding work. <P>SOLUTION: Rain water pipes 61 are arranged under the floor of a building. The lower end of a plurality of leaders 5 arranged at the outside of the building 1 penetrating the outer peripheral foundation 1A of the building 1 through a laterally laid pipe 8, is connected, and the downstream side of the rain water pipe 61 penetrating the lower part of the outer peripheral foundation 1A of the building is connected to a rainwater pit 6 embedded in the outside of the outer peripheral foundation 1A. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rainwater drainage system for houses and the like.

[0002]

2. Description of the Related Art Conventionally, in a private house, as shown in FIG. 8, it is generated in each drainage facility such as a kitchen 15, a toilet 11, a washroom 12, a washing machine 13 and a bathroom 14 installed in a building 1. The sewage and miscellaneous drainage flow into each drainage basin 3 buried in the outside of the building through each drainage branch pipe 2 connected to each drainage facility, and in the residential land connecting the drainage basins 3 and 3. It is a drainage system that flows into the public basin 4 through the main drainage pipe 32 and is discharged to the sewage main line buried under the public road through the public basin 4.

On the other hand, rainwater that has fallen on the roof of the building 1 is collected by an eaves gutter installed at the eaves of the building 1, and is buried outside the building 1 through a vertical gutter 5 connected to the eaves gutter. It is a rainwater drainage system that flows into each of the rainwater basins 6 that have been piped and is drained to a public rainwater basin (or U-shaped gutter) via a rainwater main pipe 62 in the residential land that connects the rainwater basins 6 and 6 to each other. . At that time, the drainage main pipe 32 and the rainwater main pipe 62 are substantially parallel to each other, and furthermore, the drainage main pipe 32 is buried so that the drainage main pipe 32 is located on the building 2 side. In general, the vertical gutter 5 is arranged near the four corners of the building 1 and in the middle thereof.

By the way, in the conventional drainage system, the main drainage pipe 32 in the residential land is buried outside the foundation 1A of the building 1, and various types of drainage basins are provided at the bent portion and the joining portion of the main drainage pipe 32. It is supposed to be installed. As the drainage basin and rainwater basin, those made of polypropylene resin or hard vinyl chloride resin are used, for example.

[0005]

As described above, in the conventional drainage system, the drainage pipeline is buried along the outer contour of the building between the outer contour of the building and the boundary between the residential land and the drainage pipeline. A space for installing a drainage basin to which the end of each drainage branch pipe connected to each drainage facility is connected is required in the middle of. In addition, the total extension distance of the drainage pipes that connect the drainage basins is inevitably long, which increases the work load.

Further, in order to separate rainwater from sewage and miscellaneous drainage for drainage, a space for installing a rainwater basin is required. Therefore, there is a problem that it becomes difficult to install a drainage basin or a rainwater basin due to the narrowing of the residential land. At that time, construction costs such as excavation and burial work will also increase.

An object of the present invention is to provide a rainwater drainage system which can greatly reduce earthwork costs such as excavation and burial work and which can be easily maintained and managed after construction.

[0008]

According to the present invention as set forth in claim 1, a rainwater pipe is arranged under the floor of a building, and a lower end portion of a vertical gutter arranged in the building is connected to the rainwater pipe. A rainwater drainage system in which the downstream side of the rainwater pipe is connected to a rainwater basin buried outside the foundation.

According to the first aspect of the present invention, the rainwater collected through the vertical gutter is merged by the rainwater pipe arranged under the floor of the building, and then the rainwater basin is buried outside the foundation of the building. Will be drained to. Therefore, the number of rainwater basins required is small, and the cost of piping materials can be reduced. In addition, the excavation area around the building is small and construction costs can be reduced.

According to a second aspect of the present invention, in the drainage piping system according to the first aspect, the rainwater basin is provided with a trap, and the rainwater basin is provided in a drainage pipe line buried in the outside of the building. It is built in and joined together.

According to the second aspect of the present invention, since the rainwater basin with a trap is incorporated in the drainage pipe and joined together, backflow of an offensive odor and insects through the drainage pipe into the rainwater pipe. It is possible to prevent entry.

[0012]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. 1 is a schematic explanatory view showing a first embodiment of a rainwater drainage system of the present invention, FIG. 2 is an enlarged view showing a W part of FIG. 1, FIG. 3 is a plan view and a front view showing an X part of FIG. 4 is an enlarged view showing the Y portion of FIG. 1, and FIG. 5 is an enlarged view showing the Z portion of FIG.

As shown in FIG. 1, under the floor of the building 1, a rainwater pipe 61 made of a hard vinyl chloride resin is exposed in a substantially L shape along the inside of the outer peripheral foundation 1A on the long side and the short side of the building 1. It is plumbed. At the inner corner of the outer peripheral foundation 1A, the rainwater pipes 61, 61 are, as shown in FIG.
90 degree large bend Y joint 7A is adhesively connected. A plug 7a is detachably mounted in the one end receiving port of the large-bend Y joint 7A to serve as a cleaning port.

At the end of the rainwater pipe 61 on the most upstream side,
As shown in FIG. 5, one end receiving port of the 45-degree Y joint 7 is adhesively connected, and a plug 7b is detachably attached to the other end receiving port of the Y joint 7 to form a cleaning port. And Y joint 7
The branch inlet side receiving port 71 is a horizontal pulling pipe 8, a 90 degree elbow,
It is communicated with the lower end portion of the vertical gutter 5 arranged along the outer wall of the building 1 via a 45-degree elbow or the like. The horizontal pipe 8 is inserted through a sleeve penetrating the outer peripheral foundation 1A to be piped.

Similarly, as shown in FIG. 3, a 45 ° Y-joint 7 is disposed in the middle of the rainwater pipe 61 in the vicinity where the vertical gutter 5 is disposed. One end of the laterally drawn pipe 8 that is pierced through the outer peripheral foundation 1A is adhesively connected to the side receiving port 71. The other end of the horizontal draw pipe 8 is adhesively connected to the lower end of the vertical gutter 5. In addition, the diameters of the rainwater pipe 61, the horizontal draw pipe 8, and the downpipe 5 are each 75 m.
m, 50 mm, 50 mm. The outflow side end of the rainwater pipe 61 penetrates the outer peripheral foundation 1A of the building 1 and is connected to the rainwater trough 6 buried outside the outer peripheral foundation 1A. The rainwater pipe 61 is supported by the pipe support band 9, and is arranged with a predetermined drainage gradient with respect to the floor surface FL of the concrete sleeve.

In the embodiment of FIG. 1, the lower ends of the two vertical gutters 5 arranged at both corners of the building 1 on the kitchen 15 side are buried pipes on the outside of the building 1 as in the conventional case. It is connected by piping so as to directly flow into each of the rainwater tanks 6 that are provided.
A rainwater main pipe 62 connects the rainwater tanks 6 and 6. The diameter of the rainwater main pipe 62 is 100 mm.

That is, the rainwater that has fallen on the roof of the building 1 is
Four vertical gutters 5 collected in eaves gutters (not shown) arranged at the eaves of building 1 and mostly connected to eaves gutters 5
And through the horizontal pipe 8, the rainwater pipe 61 exposed under the floor of the building 1 flows into the rainwater pipe 61 to join, and then flows into the rainwater pipe 6 buried under the outside of the building 1 through the rainwater pipe 61, or a part thereof. Flows into the rainwater basins 6, 6 directly through the two vertical gutters 5 connected to the eaves gutter, and is drained to the public rainwater basin 6A through the rainwater main pipe 62 in the residential land connecting between the rainwater basins 6, 6. It is a rainwater drainage system.

In this way, as shown in FIG. 2, by connecting the lower end portions of the four vertical gutters 5 to the rainwater pipes 61 that are piped under the floor of the building 1 through the horizontal pipes 8, respectively. It is not necessary to bury the rainwater basin, and the material cost and construction cost can be reduced. In addition, it is possible to effectively use the residential land.

On the other hand, in the present invention, as shown in FIG. 1, a kitchen 15, a toilet 11, a washroom 1 installed in a building 1
2, wastewater and miscellaneous wastewater generated in each drainage facility such as the washing machine 13 and the bathroom 14, through the drainage branch pipes 2 connected to each drainage facility, the drainage pipe 31 installed under the floor of the building 1 It flows into the inside, through the outlet side outlet of this drainage pipe 31, into each drainage basin 3 buried in the outside of the building,
Main drainage pipe 3 in the residential land that connects between these drainage basins 3 and 3.
It is a drainage system that flows into the public basin 4 through 2 and is drained to the sewage main buried under the public road through the public basin 4.

As shown in FIG. 1, under the floor of the building 1, a drain pipe 31 made of a hard vinyl chloride resin is exposed in a substantially straight line along the outer peripheral foundation 1A on the long side of the building 1. Similar to the rainwater drainage system described above, one end receiving end of a 45-degree Y joint is adhesively connected to the end of the drainage pipe 31 on the most upstream side, and a plug is detachably attached to the other end receiving end of this Y joint. It is attached to and is used as a cleaning port. The branch inflow side receiving port of the Y joint is connected to the lower end of the drain branch pipe 2 connected to the toilet 11.

Similarly, as in the case of FIG. 3, four 45-degree Y joints are arranged in the middle of the drain pipe 31,
The branch inlet side inlets of these Y joints are connected to the lower ends of the drain branch pipes 2 connected to the washroom 12, the washing machine 13, the bathroom 14, the kitchen 15, and the like.

FIG. 6 is a schematic explanatory view showing a second embodiment of the rainwater drainage system of the present invention. In this second embodiment, the rainwater basin 6A is provided with a trap having a deodorizing function,
The rainwater basin 6A is basically the same as the first embodiment of FIG. 1 except that the rainwater drainage system of the first embodiment is incorporated into the drainage main pipe 32 of the drainage system to form a combined rainwater drainage system. Are denoted by the same reference numerals and detailed description thereof will be omitted.

In this way, the main drain pipe 32 of the drainage system
By incorporating the rainwater sluice 6A into a single-system confluent rainwater drainage system, the excavation area around the building required for burial construction can be reduced and the residential land can be effectively used.

FIG. 7 is a schematic explanatory view showing a third embodiment of the rainwater drainage system of the present invention. The third embodiment is basically the same as the second embodiment of FIG. 6 except that the rainwater pipe 61 is exposed in a straight line in parallel with the drainage pipe 31 under the floor of the building 1. Are denoted by the same reference numerals and detailed description thereof will be omitted. In this case, the kitchen 15 is arranged on the second floor of the building 1, and the toilet 11 is also arranged on the second floor.

In this way, the building 1 is provided through the horizontal pipe 8.
After the rainwater that has flowed into the rainwater pipe 61, which is exposed under the floor, flows through the downstream side of the rainwater pipe 61 that penetrates the outer peripheral foundation 1A, into the rainwater basin 6A with a trap that is buried piped outside the building. , Flows into the drainage basin 3 and flows into the public basin 4 through the drainage main pipe 32 connecting between the drainage basin 3 and another rainwater basin 6A, and through the public basin 4 to the sewer main buried under the public road. It is a rainwater drainage system that drains water. In the third embodiment, the excavation area around the building required for the burying construction is smaller than that in the second embodiment, and the residential land can be effectively used.

[0026]

According to the first aspect of the present invention, rainwater collected through a plurality of vertical gutters is joined by a rainwater drain pipe arranged under the floor of the building, and then outside the foundation of the building. Since it is a system that drains to the rainwater basin that is buried in the building, the number of rainwater basins that are buried and installed outside the building can be small and the cost of piping materials can be reduced. In addition, the excavation area around the building is small and construction costs can be reduced.

According to the second aspect of the present invention, since the rainwater basin with a trap is merged and incorporated in the drainage pipe embedded in the outside of the building, the rainwater pipe through the drainage pipe. It is possible to prevent backflow of an offensive odor and entry of insects into the road. In addition, since it is a combined drainage system that combines rainwater with sewage and miscellaneous drainage for drainage, it can be applied even in a small area.

[Brief description of drawings]

FIG. 1 is a schematic explanatory view showing a first embodiment of a rainwater drainage system of the present invention.

FIG. 2 is an enlarged view showing a portion W in FIG.

3A and 3B are a plan view and a front view showing an X portion of FIG.

FIG. 4 is an enlarged view showing a Y portion of FIG.

5 is an enlarged view showing a Z part in FIG. 1. FIG.

FIG. 6 is a schematic explanatory view showing a second embodiment of the rainwater drainage system of the present invention.

FIG. 7 is a schematic explanatory view showing a third embodiment of the rainwater drainage system of the present invention.

FIG. 8 is a schematic explanatory view showing a conventional rainwater drainage system.

[Explanation of symbols]

1 building 1A Perimeter foundation 2 drain branch pipe 3 drainage basins 31 drainage pipe 32 Main drainage pipe 4 Public Masu 5 vertical gutter 6 rainwater basin 6A rainwater basin with trap 61 rainwater pipe 62 Rainwater main pipe 7,7A Y joint 7a, 7b plug 71 Branch inlet side receiving port 8 Horizontal pipe

Claims (2)

[Claims] 1. A rainwater pipe is arranged under the floor of a building, the lower end of a downpipe arranged in the building is connected to the rainwater pipe, and the downstream side of the rainwater pipe is buried outside the foundation. A rainwater drainage system characterized by being connected to a rainwater basin. 2. The rainwater drainage system according to claim 1, wherein the rainwater basin is provided with a trap, and the rainwater basin is incorporated into a drainage pipe buried in the outside of the building and joined together.