JP2005226255A - Drainage system for house - Google Patents

Drainage system for house Download PDF

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JP2005226255A
JP2005226255A JP2004033799A JP2004033799A JP2005226255A JP 2005226255 A JP2005226255 A JP 2005226255A JP 2004033799 A JP2004033799 A JP 2004033799A JP 2004033799 A JP2004033799 A JP 2004033799A JP 2005226255 A JP2005226255 A JP 2005226255A
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drainage
building
elbow
main pipe
side connection
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Shinji Terachi
信治 寺地
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Sekisui Chemical Co Ltd
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Sekisui Chemical Co Ltd
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  • Sink And Installation For Waste Water (AREA)
  • Sewage (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a drainage system for a house connecting drain water from various drainage facilities to a catch basin outside a building by providing a header below a floor of the building to prevent sealed water from being pulled in. <P>SOLUTION: In this drainage system for the house, drain branch pipes connected with various drainage facilities installed in the building are connected with a plurality of flow-in side connection parts of the header arranged below the floor of the building, respectively, and a downstream side end part of a drain main pipe connected with a flow-out side connection part of the header is connected with a flow-in side connection part of the catch basin buried in the outer side ground of an outer peripheral foundation 4 of the building. The drain main pipe 3 is bent downward through a first elbow N1 on an outer side of the outer peripheral foundation 4 of the building and is bent in the lateral direction through a second elbow N2 and is connected with the catch basin 5. A platelike projection is provided in a bottom part of a flow passage of the second elbow N2. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

この発明は、各種の排水設備におけるトラップ封水の引き込みを防止する住宅用排水システムに関する。   The present invention relates to a residential drainage system for preventing trap seal water from being drawn into various drainage facilities.

従来、住宅等の建物における排水システムでは、台所やトイレ、洗面所などの水回り設備から排出された排水は、排水枝管を通して建物の外側地中に埋設された複数の排水桝にそれぞれ流れ込み、各排水桝を接続する排水本管を経て公共桝に流れ、下水道本管へ排水されていた。   Conventionally, in a drainage system in a building such as a house, drainage discharged from water facilities such as kitchens, toilets, and washrooms flows into a plurality of drainage basins embedded in the ground outside the building through drainage branch pipes. It passed through the drainage mains connecting each drainage basin to the public basin and was drained to the sewer mains.

前記排水システムの場合、排水桝及び排水本管が建物の外周基礎と敷地境界との間に埋設されており、近年では宅地の狭小化に伴ってこれらの埋設スペースが狭められ、排水桝や排水本管の配管工事が困難になる傾向にあった。   In the case of the drainage system, the drainage basin and the drainage main are buried between the outer peripheral foundation of the building and the boundary of the site. In recent years, the burial space has been narrowed along with the narrowing of the residential land. Main pipe construction tended to be difficult.

そこで、本出願人は、前記の問題点を解決すべく特許文献1に開示されているような住宅用排水システムを開発している。この住宅用排水システムでは、建物の床下に、複数の流入側受け口と、一つの流出側受け口を備えたヘッダーが配設されている。このヘッダーの各流入側受け口には、建物内に設置された各種排水設備に接続された排水枝管の流出側端部がそれぞれ接続されている。ヘッダーの流出側受け口には、排水主管の流入側端部が接続され、この排水主管の下流側端部は、建物の外周基礎の外側地中に埋設された排水桝の流入側受け口と接続されている。そして、排水桝は排水本管に接続されて、排水本管の下流側端部が公共桝の流入側端部と接続された構成となっている。   Therefore, the present applicant has developed a residential drainage system as disclosed in Patent Document 1 in order to solve the above problems. In this residential drainage system, a header having a plurality of inflow side receiving ports and one outflow side receiving port is disposed under the floor of a building. Outlet side ends of drainage branch pipes connected to various drainage facilities installed in the building are connected to the inflow side receptacles of the header. The inflow side end of the drainage main pipe is connected to the outflow side receiving port of the header, and the downstream end of the drainage main pipe is connected to the inflow side receiving port of the drainage basin embedded in the outer ground of the outer peripheral foundation of the building. ing. The drainage basin is connected to the drainage main, and the downstream end of the drainage main is connected to the inflow side end of the public basin.

かかる排水システムにより、建物の外周基礎の外側に埋設される排水桝は一つですむこととなり、狭小な敷地においても排水桝等を配設するスペースを確保でき、また、外周基礎に形成する排水主管の貫通孔も一つですむため基礎強度を確保することができる。   With this drainage system, only one drainage basin is built outside the outer perimeter foundation of the building, and it is possible to secure a space for the drainage basin even in a small site, and the drainage formed on the outer perimeter foundation. Since only one through hole is required in the main pipe, basic strength can be secured.

特開2001−220789号公報JP 2001-220789 A

ところで一般に、複数本の排水管を接続し、排水を合流させるための排水桝は、建物内の排水設備から勢いよく排水されたり、大量に排水されたりすると、排水管内の空気をともに排水桝へ排出してしまうので、管路内が負圧になり、排水設備に設けられているトラップの封水を引き込むといった封水障害が発生する。かかる封水障害は、排水桝において十分な容積を確保し、大量の排水が流れ込んでも圧力変動を吸収するように構成することで解消することができる。しかしながら、排水桝を大型化するといった解決手段は、排水桝の設置工事に手間がかかるため適当ではなく、前記のように近年の宅地事情によって狭小化した敷地内においては、排水桝を大型化することが物理的に困難であるので、排水桝を大型化することなく、かかる封水障害を解消することが求められる。   By the way, in general, a drainage basin for connecting multiple drainage pipes to join the drainage drains the drainage pipe in the building to a drainage basin when it is drained vigorously or drained in large quantities. Since it is discharged, the inside of the pipe line becomes negative pressure, and a sealing failure such as drawing in the sealing water of the trap provided in the drainage facility occurs. Such a sealing failure can be solved by securing a sufficient volume in the drainage basin and absorbing pressure fluctuations even when a large amount of drainage flows. However, a solution means such as increasing the size of the drainage basin is not appropriate because it takes time to install the drainage basin. As described above, the size of the drainage basin is increased in a site that has been narrowed due to recent residential land conditions. Since it is physically difficult, it is required to eliminate such a sealing failure without increasing the size of the drainage basin.

本発明は以上のような事情にかんがみてなされたものであり、建物の床下にヘッダーを設けて各種排水設備からの排水を建物外部の排水桝へ接続された排水システムにおいて、封水が引き込まれるのを防止する住宅用排水システムを提供することを目的とする。   The present invention has been made in view of the above circumstances. In a drainage system in which a header is provided under the floor of a building and drainage from various drainage facilities is connected to a drainage basin outside the building, sealed water is drawn. It aims at providing the drainage system for houses which prevents this.

請求項1記載の住宅用排水システムは、建物内に設置された各種の排水設備に接続された排水枝管が、建物の床下に配設されたヘッダーの複数の流入側接続部にそれぞれ接続され、ヘッダーの流出側接続部と接続された排水主管の下流側端部が、建物の外周基礎の外側地中に埋設された排水桝の流入側接続部に接続されている住宅用排水システムにおいて、排水主管が、建物の外周基礎の外側で第一のエルボ(以下「第1エルボ」ともいう)を介して下方向へ曲げられ、さらに第二のエルボ(以下「第2エルボ」ともいう)を介して横方向へ曲げられて排水枡へ接続されており、第2エルボの流路底部に管路の流れ方向に沿って板状の突起が設けられていることを特徴としている。   In the residential drainage system according to claim 1, drainage branch pipes connected to various drainage facilities installed in the building are respectively connected to a plurality of inflow side connection portions of a header disposed under the floor of the building. In the residential drainage system, the downstream end of the drainage main pipe connected to the outflow side connection part of the header is connected to the inflow side connection part of the drainage basin embedded in the outer ground of the outer peripheral foundation of the building. The drain main pipe is bent downward through the first elbow (hereinafter also referred to as “first elbow”) outside the outer peripheral foundation of the building, and further the second elbow (hereinafter also referred to as “second elbow”). And is connected to a drainage basin, and is characterized in that a plate-like projection is provided along the flow direction of the pipe line at the flow path bottom of the second elbow.

このため、排水が第1エルボで下方向へ曲げられ、下方向へ落下する際に加速され第2エルボで横方向へ曲げられることで発生する乱流の方向を、上記突起の働きにより排水枡側へ揃えることが可能となり、排水の滞留を解消し、通気路を確保することができ、封水障害を解消することができる。   For this reason, the direction of the turbulent flow generated by the drainage being bent downward by the first elbow and accelerated when the drainage falls downward and bent laterally by the second elbow is determined by the action of the projection. It is possible to align the sides, and it is possible to eliminate stagnation of drainage, to secure an air passage, and to eliminate a sealing failure.

請求項2記載の住宅用排水システムは、請求項1記載の発明であって、突起の高さが、流入側で低く、流入側から流出側へ徐々に高くなっていることを特徴とするものである。   The residential drainage system according to claim 2 is the invention according to claim 1, wherein the height of the protrusion is low on the inflow side and gradually increases from the inflow side to the outflow side. It is.

この場合、流入部において汚物や紙類などが突起に引っかかり、排水不良になるのを防止できるため、上記効果は更に確実なものとなる。   In this case, it is possible to prevent filth and paper from being caught by the protrusions at the inflow portion, resulting in poor drainage. Therefore, the above effect is further ensured.

本発明の住宅用排水システムによれば、排水桝へ接続された排水主管を流れる排水に対して、排水の滞留を解消し、通気路を確保することができるので、排水設備に設けられた封水を排水桝側へ引き込んでしまうことがなく、円滑な排水を確保することができる。   According to the residential drainage system of the present invention, it is possible to eliminate the stagnation of drainage and secure an air passage for the drainage flowing through the drainage main pipe connected to the drainage basin. Smooth drainage can be ensured without drawing water into the drainage basin.

以下、本発明に係る住宅用排水システムを実施するための最良の形態について、図面を参照しつつ説明する。   Hereinafter, the best mode for carrying out a residential drainage system according to the present invention will be described with reference to the drawings.

図1及び図2は、本発明の前提となる住宅の排水システム構造を示している。図示するように、建物内に設置された台所、トイレ、洗濯機、浴室などの各種の排水設備Wに接続された排水枝管1は、建物の床下に配設されているヘッダー2の複数の流入側接続部21にそれぞれ接続されている。このヘッダー2により、建物内の排水設備Wで生じた排水を一箇所に集水して排水させる構成となっている。   1 and 2 show a residential drainage system structure which is a premise of the present invention. As shown in the drawing, drainage branch pipes 1 connected to various drainage facilities W such as kitchens, toilets, washing machines, bathrooms, etc. installed in a building have a plurality of headers 2 arranged under the floor of the building. Each is connected to the inflow side connection portion 21. The header 2 is configured to collect and drain the drainage generated by the drainage facility W in the building in one place.

ヘッダー2の流出側接続部22は、90°曲がり継手等を介して排水主管3の上流側端部に接続され、この排水主管3の下流側端部は建物の外周基礎4の外側地中に埋設された排水桝5の流入側接続部51に接続されている。   The outflow side connection portion 22 of the header 2 is connected to the upstream end of the drainage main pipe 3 through a 90 ° bent joint or the like, and the downstream end of the drainage main pipe 3 is in the outer ground of the outer peripheral foundation 4 of the building. It is connected to the inflow side connection portion 51 of the buried drainage 5.

また、図2に示すように、排水主管3には、外周基礎4の手前で45°エルボMに接続されて下方への勾配が設けられている。さらに、排水主管3が接続された排水桝5の流出側接続部には、排水を図示しない公共桝及び下水道本管に導く排水本管6が接続されている。   As shown in FIG. 2, the drain main pipe 3 is connected to a 45 ° elbow M in front of the outer peripheral foundation 4 and is provided with a downward gradient. Furthermore, a drainage main pipe 6 that leads the drainage to a public tank (not shown) and a sewer main pipe is connected to the outflow side connection portion of the drainage pipe 5 to which the drainage main pipe 3 is connected.

このように構成される排水システムでは、建物の外周基礎4に形成する配管用貫通孔が少なくてすみ、建物の外周基礎4の強度低下を生じることがない。また、建物の外周基礎4の外側の敷地内に埋設する排水桝5は一つであるので、狭小地にも適用できるものとなっている。   In the drainage system configured as described above, the number of through holes for piping formed in the outer peripheral foundation 4 of the building is small, and the strength of the outer peripheral foundation 4 of the building is not reduced. Moreover, since there is one drainage basin 5 buried in the site outside the outer peripheral foundation 4 of the building, it can be applied to narrow land.

次に、本発明に係る住宅用排水システムの実施例1について説明する。図3及び図4は、本発明の住宅用排水システムの実施例1を示す模式図である。   Next, a first embodiment of the residential drainage system according to the present invention will be described. 3 and 4 are schematic views showing Example 1 of the residential drainage system of the present invention.

図3に示すように、排水主管3が、建物の外周基礎4の外側で第一の90°エルボ(第1エルボ)N1を介して下方向へ曲げられ、さらに第二の90°エルボ(第2エルボ)N2を介して横方向へ曲げられて排水主管3の下流側端部は排水枡5の流入側接続部51へ接続されている。   As shown in FIG. 3, the drain main pipe 3 is bent downward through a first 90 ° elbow (first elbow) N1 outside the outer peripheral foundation 4 of the building, and further a second 90 ° elbow (first elbow). 2 elbow) It is bent in the lateral direction via N2, and the downstream end portion of the drainage main pipe 3 is connected to the inflow side connection portion 51 of the drainage basin 5.

さらに図4に示すように、第2エルボN2の流路底部に管路の流れ方向に沿って板状の突起7が設けられている。この場合、突起7の寸法は、管径により適時選択されるが、高さ10〜25mm、幅1〜5mm程度が好適である。   Further, as shown in FIG. 4, a plate-like protrusion 7 is provided along the flow direction of the pipe line at the bottom of the flow path of the second elbow N2. In this case, although the dimension of the protrusion 7 is appropriately selected depending on the tube diameter, a height of about 10 to 25 mm and a width of about 1 to 5 mm are suitable.

このように板状の突起7が設けられることで、排水に発生する乱流の方向を排水枡5側へ揃えることが可能となり、排水の滞留を解消し、通気路を確保することができ、封水障害を解消することができる。   By providing the plate-like projections 7 in this way, it becomes possible to align the direction of turbulent flow generated in the drainage toward the drainage basin 5 side, eliminate the retention of drainage, and secure an air passage. Sealing trouble can be solved.

次に、本発明に係る住宅用排水システムの実施例2について説明する。図3及び図5は、住宅用排水システムの実施例2を示す模式図である。   Next, a second embodiment of the residential drainage system according to the present invention will be described. 3 and 5 are schematic views showing Example 2 of a residential drainage system.

この住宅用排水システムでは、図3に示すように、排水主管3が、建物の外周基礎4の外側で第一の90°エルボ(第1エルボ)N1を介して下方向へ曲げられ、さらに第二の90°エルボ(第2エルボ)N2を介して横方向へ曲げられて排水主管3の下流側端部は排水枡5の流入側接続部51へ接続されている。   In this residential drainage system, as shown in FIG. 3, the drainage main pipe 3 is bent downward via a first 90 ° elbow (first elbow) N1 outside the outer peripheral foundation 4 of the building, and further The downstream end of the drainage main pipe 3 is connected to the inflow side connection portion 51 of the drainage basin 5 by being bent laterally through a second 90 ° elbow (second elbow) N2.

さらに図5に示すように、第2エルボN2の流路底部に管路の流れ方向に沿って板状の突起7が設けられ、突起の高さが流入側8で低く、流入側8から流出側9へ徐々に高くなっている。   Further, as shown in FIG. 5, a plate-like protrusion 7 is provided at the bottom of the flow path of the second elbow N2 along the flow direction of the pipe, and the height of the protrusion is low on the inflow side 8 and outflow from the inflow side 8 Gradually higher to side 9.

このように板状の突起7が設けられることで、排水に発生する乱流の方向を排水枡5側へ揃えることが可能となり、排水の滞留を解消し、通気路を確保することができ、封水障害を解消することができるとともに、流入側8において汚物や紙類などが突起7に引っかかり、排水不良になることを防止することができる。   By providing the plate-like projections 7 in this way, it becomes possible to align the direction of turbulent flow generated in the drainage toward the drainage basin 5 side, eliminate the retention of drainage, and secure an air passage, It is possible to eliminate the water-sealing trouble and prevent the waste or paper from being caught on the protrusion 7 on the inflow side 8 and causing poor drainage.

本発明の前提となる住宅の排水システム構造を示す横断面説明図である。It is a cross-sectional explanatory drawing which shows the drainage system structure of the house used as the premise of this invention. 本発明の前提となる住宅の排水システム構造を示す模式図である。It is a schematic diagram which shows the drainage system structure of the house used as the premise of this invention. 本発明に係る住宅用排水システムの実施例を示す模式図である。It is a mimetic diagram showing the example of the drainage system for houses concerning the present invention. 実施例1における第2エルボを例示する側面図及び正面図である。It is the side view and front view which illustrate the 2nd elbow in Example 1. FIG. 実施例2における第2エルボを例示する側面図及び正面図である。FIG. 6 is a side view and a front view illustrating a second elbow in the second embodiment.

符号の説明Explanation of symbols

1 排水枝管
2 ヘッダー
21 流入側接続部
22 流出側接続部
3 排水主管
4 外周基礎
5 排水桝
51 流入側接続部
6 排水本管
7 板状の突起
8 流入側
9 流出側

DESCRIPTION OF SYMBOLS 1 Drainage branch 2 Header 21 Inflow side connection part 22 Outflow side connection part 3 Drainage main pipe 4 Outer periphery foundation 5 Drainage basin 51 Inflow side connection part 6 Drainage main pipe 7 Plate-like protrusion 8 Inflow side 9 Outflow side

Claims (2)

建物内に設置された各種の排水設備に接続された排水枝管が、建物の床下に配設されたヘッダーの複数の流入側接続部にそれぞれ接続され、ヘッダーの流出側接続部と接続された排水主管の下流側端部が、建物の外周基礎の外側地中に埋設された排水桝の流入側接続部に接続されている住宅用排水システムにおいて、排水主管が、建物の外周基礎の外側で第一のエルボを介して下方向へ曲げられ、さらに第二のエルボを介して横方向へ曲げられて排水枡へ接続されており、第二のエルボの流路底部に管路の流れ方向に沿って板状の突起が設けられていることを特徴とする住宅用排水システム。   Drainage branch pipes connected to various drainage facilities installed in the building were connected to the multiple inflow side connection parts of the header arranged under the floor of the building, and were connected to the outflow side connection parts of the header. In the residential drainage system where the downstream end of the drainage main pipe is connected to the inflow side connection part of the drainage basin buried outside the outer foundation of the building, the drainage main pipe is located outside the outer foundation of the building. It is bent downward through the first elbow and then bent laterally through the second elbow and connected to the drainage basin at the bottom of the flow path of the second elbow. A residential drainage system, characterized in that a plate-like projection is provided along. 突起の高さが、流入側で低く、流入側から流出側へ徐々に高くなっていることを特徴とする請求項1記載の住宅用排水システム。
The residential drainage system according to claim 1, wherein the height of the protrusion is low on the inflow side and gradually increases from the inflow side to the outflow side.
JP2004033799A 2004-02-10 2004-02-10 Drainage system for house Pending JP2005226255A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102434745A (en) * 2011-12-09 2012-05-02 常州博朗低温设备有限公司 Duckbilled bent pipe structure for tanker evacuation

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102434745A (en) * 2011-12-09 2012-05-02 常州博朗低温设备有限公司 Duckbilled bent pipe structure for tanker evacuation

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