JP2008196304A - Drainage collection pipe - Google Patents

Drainage collection pipe Download PDF

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JP2008196304A
JP2008196304A JP2008074981A JP2008074981A JP2008196304A JP 2008196304 A JP2008196304 A JP 2008196304A JP 2008074981 A JP2008074981 A JP 2008074981A JP 2008074981 A JP2008074981 A JP 2008074981A JP 2008196304 A JP2008196304 A JP 2008196304A
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pipe
drainage
opening
tube
backflow prevention
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JP4757890B2 (en
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Noriyuki Toyama
敬之 外山
Hiroshi Yagi
博史 八木
Yoshinori Ueda
義憲 上田
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Kubota Corp
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Kubota Corp
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a drainage collection pipe causing no backflow of the waste water to the other horizontal branch pipe, when a powerful waste water flow is drained. <P>SOLUTION: This drainage collecting pipe has a pipe body 2 interposed in a vertical main pipe 100, a pipe coupling part 6 projecting sideways in its side surface part to the pipe body for connecting a horizontal branch pipe 102, and a plurality of backflow preventive ribs 10 to 13 extending in the pipe axis direction of an overhang pipe body toward the center of the pipe body from an inner surface of the pipe body, and is constituted so that the pipe body forms an inner peripheral surface 2a of not opening the pipe coupling part on the side opposed to an opening part 15 of the pipe coupling part on its inside, and the backflow preventive ribs are arranged in a symmetrical position of sandwiching the pipe axis of the pipe body to both side positions of the opening part and both side positions in an inner peripheral surface respectively opposed to the opening part. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

本発明は、排水集合管に関するものである。   The present invention relates to a drainage collecting pipe.

図７及び図８に示すように、集合住宅等の多層階建物で採用される排水管システムは、各階を縦方向に貫いて配管される立主管１００に対し、各階ごとに対応させて排水集合管１０１が介設され、これらそれぞれの排水集合管１０１を介して、各階用の横枝管１０２，１０３が接続されるようになっている（特許文献１）。
この種の排水集合管１０１では、核となる管本体１０５の側部に、横枝管１０２，１０３に対応して横向きの管継ぎ手部１０６，１０７が複数設けられている。
図例の排水集合管１０１は、管継ぎ手部１０６，１０７が互いに平面Ｌ字状を呈するようにして平面交差方向へ突出されたものとなっている。 As shown in FIGS. 7 and 8, the drainage pipe system adopted in multi-storey buildings such as apartment houses is a drainage collection system corresponding to each floor with respect to a standing main pipe 100 that is piped through each floor in the vertical direction. A pipe 101 is provided, and the horizontal branch pipes 102 and 103 for each floor are connected via these drainage collecting pipes 101 (Patent Document 1).
In this type of drainage collecting pipe 101, a plurality of lateral pipe joint parts 106 and 107 are provided on the side part of the pipe main body 105 serving as a nucleus corresponding to the side branch pipes 102 and 103.
In the illustrated drainage collecting pipe 101, the pipe joint portions 106 and 107 protrude in the plane crossing direction so as to have a flat L shape.

このようなＬ字タイプの排水集合管１０１を用いて便器排水を排水させる場合、いずれか一方の管継ぎ手部（いま仮に符号１０６の方とおく）に接続する横枝管１０２を便器１０８へと繋げ、他方の管継ぎ手部（従って符号１０７の方である）に接続する横枝管１０３を例えば風呂等の排水機器１０９等へと繋げることになる。
特開平９−３１０３８９号公報 When the toilet drainage is drained using such an L-shaped drainage collecting pipe 101, the side branch pipe 102 connected to one of the pipe joint portions (currently referred to as reference numeral 106) is connected to the toilet 108. The horizontal branch pipe 103 connected to the other pipe joint portion (therefore the reference numeral 107) is connected to a drainage device 109 such as a bath.
Japanese Patent Laid-Open No. 9-310389

上記した平面Ｌ字状タイプの排水集合管１０１では、これを用いて便器排水のように勢いのある排水流を排水させるようにした場合、便器１０８側の横枝管１０２から管継ぎ手部１０６を介して管本体１０５内に便器排水が流れ込んだ場合に、この便器排水が管本体１０５内で対向する内周面に突き当たり、その反射流が勢い余って内周面を伝いながら他方の管継ぎ手部１０７へと流れ込み、もって横枝管１０３に逆流してしまうということがあった。
なお、このような問題は便器排水に限らず、勢いのある排水流を排水させる場合に起こりうるものであった。 In the above-described flat L-shaped type drainage collecting pipe 101, when using this to drain a vigorous drainage flow like toilet drainage, the pipe joint portion 106 is connected from the side branch pipe 102 on the toilet bowl 108 side. When the toilet drainage flows into the pipe main body 105 through the pipe main body 105, the toilet drainage hits the inner peripheral surface facing in the pipe main body 105, and the other pipe joint portion while the reflected flow surpasses the inner peripheral surface. 107 flows into the side branch pipe 103 and thus backflows.
Such a problem is not limited to toilet drainage but may occur when draining a vigorous drainage flow.

ところで、従来、この種の問題を解消できるものとして管本体１０５内に垂下壁を設けることも考えられている（特開平８−８５９８９号公報参照）が、垂下壁は試験球の通過を考慮しながらの形成になるので、構造的にコスト高を伴う等の問題があった。
本発明は、上記事情に鑑みてなされたものであって、便器排水などのような勢いのある排水流を排水する場合にその排水が他の横枝管へ逆流することがないようにできる排水集合管を提供することを目的とする。 Conventionally, it has been considered that a hanging wall is provided in the tube main body 105 to solve this type of problem (see Japanese Patent Application Laid-Open No. 8-85889). However, the hanging wall takes into account the passage of the test ball. However, there is a problem that the structure is expensive.
The present invention has been made in view of the above circumstances, and when draining a vigorous drainage flow such as toilet drainage, the drainage can prevent the drainage from flowing back to other side branch pipes. The purpose is to provide a collecting tube.

前記目的を達成するため、本発明においては以下の技術的手段を講じた。
すなわち、本発明に係る排水集合管は、立主管に介設される管本体と、横枝管を接続するために前記管本体に対しその側面部で横向きに突出する管継ぎ手部と、前記管本体の内面から前記管本体の中心へ向けて張り出し前記管本体の管軸方向に延びる複数の逆流防止リブと、を備え、前記管本体は、その内側における前記管継ぎ手部の開口部が対向する側に管継ぎ手部が開口しない内周面が形成され、前記逆流防止リブは、前記開口部の両脇位置、およびそれぞれ前記開口部に対向する前記内周面における前記両脇位置に対して前記管本体の管軸を挟んだ対称位置に設けられている。 In order to achieve the above object, the present invention takes the following technical means.
That is, the drainage collecting pipe according to the present invention includes a pipe main body interposed in the standing main pipe, a pipe joint portion projecting laterally at the side surface of the pipe main body to connect the lateral branch pipe, and the pipe A plurality of backflow prevention ribs extending from the inner surface of the main body toward the center of the tube main body and extending in the tube axis direction of the tube main body, the tube main body facing the opening of the pipe joint portion on the inner side thereof An inner peripheral surface where the pipe joint portion does not open is formed on the side, and the backflow prevention ribs are located on both sides of the opening and on both sides of the inner surface facing the opening. It is provided at a symmetrical position across the tube axis of the tube body.

前記排水集合管は、前記管継ぎ手部を複数備え、複数の前記管継ぎ手部は、前記管軸方向のそれぞれ異なる位置であって前記管軸方向にみたときに前記管本体に対して互いに９０度の角度で平面交差するように設けられている。
好ましくは、前記逆流防止リブは、それぞれ、少なくとも前記開口部の中心を含む前記管軸方向の前記開口部の上端位置から前記開口部の下端位置までにわたって形成される。
好ましくは、前記管軸方向の異なる位置に設けられた複数の前記管継ぎ手のそれぞれについて設けられた前記逆流防止リブは、前記管軸方向において隣り合う２つが連続する。 The drainage collecting pipe includes a plurality of the pipe joint portions, and the plurality of pipe joint portions are 90 degrees with respect to the pipe body when viewed in the pipe axis direction at different positions in the pipe axis direction. It is provided so as to intersect the plane at an angle of.
Preferably, each of the backflow prevention ribs is formed from the upper end position of the opening in the tube axis direction including at least the center of the opening to the lower end of the opening.
Preferably, two of the backflow prevention ribs provided for each of the plurality of pipe joints provided at different positions in the pipe axis direction are continuous in the pipe axis direction.

本発明に係る排水集合管は、便器排水などのような勢いのある排水流を排水する場合に、その排水が他の横枝管へ逆流することがないようにできる。   The drainage collecting pipe according to the present invention can prevent the drainage from flowing backward to other side branch pipes when draining a vigorous drainage flow such as toilet drainage.

以下、本発明の実施の形態を、図面に基づき説明する。
図３及び図４は、本発明に係る排水集合管１の第１実施形態を示しており、図１及び図２は、この第１実施形態の排水集合管１を用いて集合住宅等の多層階建物での排水管システムを配管させた状況を示している。
この排水集合管１は、多層階建物の各階を縦方向に貫いて建て込まれる立主管１００に対して、各階に対応した部分で介設される。
そのため、この排水集合管１において核を成している管本体２に対し、その上端部及び下端部に立主管１００用縦管と接続するための上部継ぎ手部３及び下部継ぎ手部４が設けられている。 Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIGS. 3 and 4 show a first embodiment of a drainage collecting pipe 1 according to the present invention. FIGS. 1 and 2 show a multilayer structure such as a housing complex using the drainage collecting pipe 1 of the first embodiment. It shows the situation where the drainage pipe system was installed in the floor building.
The drainage collecting pipe 1 is interposed at a portion corresponding to each floor with respect to a standing main pipe 100 that is built through each floor of a multi-story building in the vertical direction.
Therefore, an upper joint portion 3 and a lower joint portion 4 for connecting to the vertical pipe for the standing main pipe 100 are provided at the upper end portion and the lower end portion of the pipe main body 2 forming the nucleus in the drainage collecting pipe 1. ing.

なお、図例の上部継ぎ手部３は受け口（ソケット又はメカニカル）タイプとしてあり、下部継ぎ手部４は差し口（ストレート管）タイプとしてあるが、これらはフランジ継ぎ手タイプ等の他のタイプとしてもよい。
この管本体２の側面部には、複数（図例では二つ）の管継ぎ手部６，７が設けられている。
図例の管継ぎ手部６，７はいずれも受け口（ソケット又はメカニカル）タイプとしてあるが、フランジ継ぎ手タイプや差し口（ストレート管）タイプ等の他のタイプでもよい。 In addition, although the upper joint part 3 of the example is a receptacle (socket or mechanical) type and the lower joint part 4 is an insertion (straight pipe) type, these may be other types such as a flange joint type.
A plurality (two in the illustrated example) of pipe joint portions 6 and 7 are provided on the side surface portion of the pipe body 2.
The pipe joint portions 6 and 7 in the figure are all of the receptacle (socket or mechanical) type, but may be other types such as a flange joint type and an inlet (straight pipe) type.

これら管継ぎ手部６，７は横向きであり、平面Ｌ字状を呈するように管本体２に対して互いに平面交差方向へ突出されたものとなっている。各管継ぎ手部６，７には横枝管１０２，１０３を接続可能になっており、このうち一方の横枝管１０２が便器１０８へと繋げられるものとする。
なお、他方の横枝管１０３は、例えば風呂等の排水機器１０９へと繋げられるものとする。
管本体２の内部には複数の逆流防止リブ１０〜１３が設けられている。 These pipe joint portions 6 and 7 are lateral and protrude from the pipe body 2 in the plane crossing direction so as to have a planar L shape. The side branch pipes 102 and 103 can be connected to the pipe joint portions 6 and 7, and one of the side branch pipes 102 is connected to the toilet 108.
The other side branch pipe 103 is connected to a drainage device 109 such as a bath.
A plurality of backflow prevention ribs 10 to 13 are provided inside the tube body 2.

逆流防止リブ１０〜１３は、いずれも、管本体２の内周面から管中心方向（正確な管中心でなくてもよい）へ向けて張り出したものである。また逆流リブ１０〜１３は、いずれも、管軸方向に沿って延びている。
各逆流防止リブ１０〜１３が管本体２の管軸方向において設けられる位置付けは、管継ぎ手部６，７と同じ位置付けとなるように設定されている。
また、各逆流防止リブ１０〜１３が管本体２の周方向において設けられる位置付けは、平面交差状に隣接している各管継ぎ手部６，７に対し、それらが管本体２の内側で開口している部分（図３に示すように一方の管継ぎ手部６の開口部を１５とし、他方の管継ぎ手部７の開口部を１６とする）の中間位置を含んだものとされている。 Each of the backflow prevention ribs 10 to 13 protrudes from the inner peripheral surface of the tube body 2 toward the tube center direction (not necessarily an accurate tube center). The reverse flow ribs 10 to 13 all extend along the tube axis direction.
The positions where the backflow prevention ribs 10 to 13 are provided in the tube axis direction of the tube body 2 are set so as to be the same positions as the tube joint portions 6 and 7.
Further, the positioning of the backflow prevention ribs 10 to 13 in the circumferential direction of the pipe body 2 is such that they open to the inside of the pipe body 2 with respect to the pipe joint portions 6 and 7 adjacent to each other in a plane crossing manner. It includes an intermediate position of the portion (the opening of one pipe joint portion 6 is 15 and the opening of the other pipe joint portion 7 is 16 as shown in FIG. 3).

いま、この位置付けにあるものを説明の便宜上、第１逆流防止リブ１０とおき、且つその他の逆流防止リブ１１，１２，１３を時計回り方向で昇順的に呼称するものとおくと、第２逆流防止リブ１１は、第１逆流防止リブ１０から管継ぎ手部６の開口部１５を挟んだ対称位置に位置付けられている。従って、この開口部１５に対してその両脇位置に逆流防止リブ１０，１１が設けられていることになる。
また、第４逆流防止リブ１３は、第１逆流防止リブ１０から管継ぎ手部７の開口部１６を挟んだ対称位置に位置付けられている。従って、この開口部１６に対してその両脇位置に逆流防止リブ１０，１３が設けられていることになる。 For convenience of explanation, the first backflow prevention rib 10 and the other backflow prevention ribs 11, 12, and 13 are referred to in ascending order in the clockwise direction. The prevention rib 11 is positioned at a symmetrical position sandwiching the opening 15 of the pipe joint portion 6 from the first backflow prevention rib 10. Therefore, the backflow prevention ribs 10 and 11 are provided on both sides of the opening 15.
Further, the fourth backflow prevention rib 13 is positioned at a symmetrical position sandwiching the opening 16 of the pipe joint portion 7 from the first backflow prevention rib 10. Therefore, the backflow prevention ribs 10 and 13 are provided on both sides of the opening 16.

そして、第３逆流防止リブ１２は、第１逆流防止リブ１０に対して管本体２の管中心を挟んだ対称位置に位置付けられている。
従って、これらの説明から明らかなように、逆流防止リブ１０〜１３は、管本体２の内周面を四等分する位置付けで設けられていることになる。
なお、本第１実施形態の管本体２では、排水を効率よく立主管１００へ流下させるための旋回羽根１７が設けられているものとした。
図１及び図２に示すように、このような構成の排水集合管１では、便器１０８に接続する横枝管１０２から一方の管継ぎ手部６を介して管本体２内へ便器排水が勢いよく流れ込んだとしても、この排水流は、管本体２内で対向する内周面２ａに突き当たった後、その反射流がすぐに第３逆流防止リブ１２や第４逆流防止リブ１３にぶつかるようになる。 The third backflow prevention rib 12 is positioned at a symmetrical position with respect to the first backflow prevention rib 10 with the tube center of the tube body 2 interposed therebetween.
Therefore, as is clear from these descriptions, the backflow prevention ribs 10 to 13 are provided so as to divide the inner peripheral surface of the pipe body 2 into four equal parts.
In the pipe body 2 of the first embodiment, the swirl vanes 17 are provided for allowing the drainage to flow down to the standing main pipe 100 efficiently.
As shown in FIGS. 1 and 2, in the drainage collecting pipe 1 having such a configuration, the toilet drainage vigorously flows from the side branch pipe 102 connected to the toilet 108 into the pipe body 2 through one pipe joint portion 6. Even if it flows in, this drainage flow hits the inner peripheral surface 2a facing in the pipe body 2 and then the reflected flow immediately hits the third backflow prevention rib 12 and the fourth backflow prevention rib 13. .

のみならず、仮にこれら第３、第４の逆流防止リブ１２，１３を乗り越える反射流があったとしても、それらは第１逆流防止リブ１０や第２逆流防止リブ１１にぶつかることになる。
そのため、排水流の反射流が管本体２の内周面を伝うといった現象は確実に抑制され、結果として、この排水流が他方の管継ぎ手部７から横枝管１０３へと逆流することは防止されるものである。
なお、上記したように逆流防止リブ１０〜１３は、管本体２の内周面に対して四等配置で設けられているので、管継ぎ手部７に接続した横枝管１０３側から勢いのある排水流が流入した場合（勿論、この横枝管１０３を便器１０８へ繋いだ場合を含む）でも、管本体２内へ流れ込んだ排水流が管本体２の内周面を伝うという現象は確実に抑制されることになる。すなわち、排水集合管１として、その配管（使用態様）が限定されることはない。 In addition, even if there is a reflected flow over the third and fourth backflow prevention ribs 12 and 13, they will collide with the first backflow prevention rib 10 and the second backflow prevention rib 11.
Therefore, the phenomenon that the reflected flow of the drainage flow propagates along the inner peripheral surface of the pipe body 2 is reliably suppressed, and as a result, the drainage flow is prevented from flowing backward from the other pipe joint portion 7 to the side branch pipe 103. It is what is done.
As described above, since the backflow prevention ribs 10 to 13 are arranged in four equal positions with respect to the inner peripheral surface of the pipe body 2, there is momentum from the side branch pipe 103 side connected to the pipe joint portion 7. Even when a drainage flow flows in (including, of course, the case where the horizontal branch pipe 103 is connected to the toilet 108), the phenomenon that the drainage flow that has flowed into the pipe main body 2 is transmitted along the inner peripheral surface of the pipe main body 2 is ensured. Will be suppressed. That is, as the drainage collecting pipe 1, its piping (use mode) is not limited.

図５は、本発明に係る排水集合管１の第２実施形態を示している。
この第２実施形態の排水集合管１が上記第１実施形態と異なるところは、管本体２が縦長に形成されており、それに伴って逆流防止リブ１０〜１３も縦長に形成されている点にある。
管本体２の縦長化は、管継ぎ手部６，７の下部側で行われたものとしてあるが、管継ぎ手部６，７の上部側で行われたものとしてもよい。
その他の構成、構造及び作用効果等は第１実施形態の場合と略同様であるので、ここでの詳説は省略する。 FIG. 5 shows a second embodiment of the drainage collecting pipe 1 according to the present invention.
The difference between the drainage collecting pipe 1 of the second embodiment and the first embodiment is that the pipe body 2 is formed in a vertically long shape and the backflow prevention ribs 10 to 13 are also formed in a vertically long shape. is there.
Although the pipe body 2 is vertically elongated on the lower side of the pipe joint parts 6, 7, it may be formed on the upper side of the pipe joint parts 6, 7.
Other configurations, structures, operational effects, and the like are substantially the same as in the case of the first embodiment, and a detailed description thereof is omitted here.

図６は、本発明に係る排水集合管１の第３実施形態を示している。
この第３実施形態の排水集合管１も上記第２実施形態の場合と同様に、管本体２が縦長に形成されたものであるが、更に管本体２に対し、管継ぎ手部６，７とは高さを異ならせた配置で、新たに別の管継ぎ手部２０が設けられたものとなっている。
そして、これに伴い、管本体２の管軸方向において管継ぎ手部６，７と同じ位置付けで設けられた逆流防止リブ１０Ａ〜１３Ａとは別に、管継ぎ手部２０と同じ位置付けで逆流防止リブ１０Ｂ〜１３Ｂが設けられたものとしてある。 FIG. 6 shows a third embodiment of the drainage collecting pipe 1 according to the present invention.
Similarly to the case of the second embodiment, the drainage collecting pipe 1 of the third embodiment is formed by a vertically long pipe main body 2. Is an arrangement with different heights, and another pipe joint portion 20 is newly provided.
Along with this, apart from the backflow prevention ribs 10A to 13A provided at the same position as the pipe joint portions 6 and 7 in the pipe axis direction of the pipe body 2, the backflow prevention ribs 10B to 10B at the same position as the pipe joint portion 20 are provided. 13B is provided.

なお、図例では、上方側の逆流防止リブ１０Ａ〜１３Ａと下方側の逆流防止リブ１０Ｂ〜１３Ｂとが上下に分離されたものとしてあるが、一連に連続させたものとしてもよい。
その他の構成、構造及び作用効果等は第１実施形態や第２実施形態の場合と略同様であるので、ここでの詳説は省略する。
ところで、本発明は、上記した各実施形態に限定されるものではなく、実施の形態に応じて適宜変更可能である。
例えば、この排水集合管１の形成材料、管継ぎ手部６，７，２０の配置数や配置、その管径サイズ等は何ら限定されるものではない。従って、平面Ｌ型の二方とする他、平面Ｔ型やＹ型等の三方、平面十字型の四方などとすることも可能である。 In the example shown in the drawing, the upper backflow prevention ribs 10A to 13A and the lower backflow prevention ribs 10B to 13B are separated in the vertical direction, but they may be continuous in series.
Since other configurations, structures, operational effects, and the like are substantially the same as those in the first embodiment and the second embodiment, detailed description thereof is omitted here.
By the way, this invention is not limited to each above-mentioned embodiment, It can change suitably according to embodiment.
For example, the forming material of the drainage collecting pipe 1, the number and arrangement of the pipe joint portions 6, 7, and 20, the pipe diameter size and the like are not limited at all. Therefore, in addition to the two sides of the plane L type, it is also possible to have three sides such as the plane T type and Y type, and four sides of the plane cross shape.

また、この排水集合管１は、多層階建物において使用されることが限定されるものではない。
逆流防止リブ１０〜１３における管軸方向の長さや管中心へ向けた張り出し長さなどは、限定されない。 Further, the drainage collecting pipe 1 is not limited to be used in a multi-storey building.
The length of the backflow prevention ribs 10 to 13 in the tube axis direction, the protruding length toward the tube center, and the like are not limited.

本発明は、集合住宅等の多層階建物で採用される排水管システムの排水集合管に利用することができる。   INDUSTRIAL APPLICABILITY The present invention can be used for a drainage collecting pipe of a drainage pipe system employed in a multi-storey building such as an apartment house.

図１は排水集合管の第１の形態を用いた配管形態を示した平面図である。FIG. 1 is a plan view showing a pipe form using the first form of the drainage collecting pipe. 図２は図１に対応する側面図である。FIG. 2 is a side view corresponding to FIG. 図３は排水集合管の第１の形態を示した一部破砕平面図である。FIG. 3 is a partially crushed plan view showing a first form of the drainage collecting pipe. 図４は排水集合管の第１の形態を示した一部破砕側面図である。FIG. 4 is a partially crushed side view showing a first form of the drainage collecting pipe. 図５は排水集合管の第２の形態を示した一部破砕側面図である。FIG. 5 is a partially broken side view showing a second form of the drainage collecting pipe. 図６は排水集合管の第３の形態を示した一部破砕側面図である。FIG. 6 is a partially crushed side view showing a third form of the drainage collecting pipe. 図７は従来の排水集合管を用いた配管形態を示した平面図である。FIG. 7 is a plan view showing a piping configuration using a conventional drainage collecting pipe. 図８は図７に対応する側面図である。FIG. 8 is a side view corresponding to FIG.

符号の説明Explanation of symbols

１ 排水集合管
２ 管本体
２ａ 内周面
６ 管継ぎ手部
７ 管継ぎ手部
１０〜１３ 逆流防止リブ
１５，１６ 開口部
１００ 立主管
１０２ 横枝管 DESCRIPTION OF SYMBOLS 1 Drainage collecting pipe 2 Pipe main body 2a Inner peripheral surface 6 Pipe joint part 7 Pipe joint part 10-13 Backflow prevention ribs 15 and 16 Opening part 100 Standing main pipe 102 Side branch pipe

Claims (4)

立主管に介設される管本体と、
横枝管を接続するために前記管本体に対しその側面部で横向きに突出する管継ぎ手部と、
前記管本体の内面から前記管本体の中心へ向けて張り出し前記管本体の管軸方向に延びる複数の逆流防止リブと、を備え、
前記管本体は、
その内側における前記管継ぎ手部の開口部が対向する側に管継ぎ手部が開口しない内周面が形成され、
前記逆流防止リブは、
前記開口部の両脇位置、およびそれぞれ前記開口部に対向する前記内周面における前記両脇位置に対して前記管本体の管軸を挟んだ対称位置に設けられている
ことを特徴とする排水集合管。 A pipe body interposed in the standing main pipe,
A pipe joint that projects laterally at the side of the pipe body to connect a side branch pipe;
A plurality of backflow prevention ribs extending from the inner surface of the tube body toward the center of the tube body and extending in the tube axis direction of the tube body;
The tube body is
An inner peripheral surface where the pipe joint portion does not open is formed on the side facing the opening of the pipe joint portion inside thereof,
The backflow prevention rib is
Drainage characterized by being provided at symmetrical positions across the tube axis of the tube main body with respect to both sides of the opening and both sides of the inner peripheral surface facing the opening. Collecting tube. 前記管継ぎ手部を複数備え、
複数の前記管継ぎ手部は、
前記管軸方向のそれぞれ異なる位置であって前記管軸方向にみたときに前記管本体に対して互いに９０度の角度で平面交差するように設けられた
請求項１に記載の排水集合管。 A plurality of the pipe joint portions;
The plurality of pipe joint portions are
The drainage collecting pipe according to claim 1, wherein the drainage collecting pipes are provided so as to intersect each other at an angle of 90 degrees with respect to the pipe body when viewed in the pipe axis direction at different positions in the pipe axis direction. 前記逆流防止リブは、それぞれ、
少なくとも前記開口部の中心を含む前記管軸方向の前記開口部の上端位置から前記開口部の下端位置までにわたって形成されている
請求項２に記載の排水集合管。 The backflow prevention ribs are respectively
The drainage collecting pipe according to claim 2, wherein the drainage collecting pipe is formed from an upper end position of the opening in the tube axis direction including at least a center of the opening to a lower end position of the opening. 前記管軸方向の異なる位置に設けられた複数の前記管継ぎ手のそれぞれについて設けられた前記逆流防止リブは、
前記管軸方向において隣り合う２つが連続する
請求項３に記載の排水集合管。 The backflow prevention ribs provided for each of the plurality of pipe joints provided at different positions in the pipe axis direction,
The drainage collecting pipe according to claim 3, wherein two adjacent ones in the pipe axis direction are continuous.
JP2008074981A 2008-03-24 2008-03-24 Drainage collecting pipe Expired - Fee Related JP4757890B2 (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011117133A (en) * 2009-12-01 2011-06-16 Funen Akurosu Kk Junction pipe joint for drainage
JP2011153478A (en) * 2010-01-28 2011-08-11 Sekisui Chem Co Ltd Fireproof drainage collecting joint
CN110159831A (en) * 2018-09-07 2019-08-23 霍汉任 A kind of organic environmental-protection planting groove and its application method, a kind of planting greenhouse

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09310389A (en) * 1996-05-22 1997-12-02 Funen Akurosu Kk Drain pipe fitting
JPH1129965A (en) * 1997-07-11 1999-02-02 Noriatsu Kojima Drainage collecting pipe joint
JPH1193232A (en) * 1997-09-19 1999-04-06 Noriatsu Kojima Waste water collecting pipe joint and sublimation pattern to manufacture this pipe joint
JP2000144838A (en) * 1998-11-09 2000-05-26 Noriatsu Kojima Drain pipe joint
JP2001026955A (en) * 1999-07-14 2001-01-30 Funen Akurosu Kk Drain pipe joint

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09310389A (en) * 1996-05-22 1997-12-02 Funen Akurosu Kk Drain pipe fitting
JPH1129965A (en) * 1997-07-11 1999-02-02 Noriatsu Kojima Drainage collecting pipe joint
JPH1193232A (en) * 1997-09-19 1999-04-06 Noriatsu Kojima Waste water collecting pipe joint and sublimation pattern to manufacture this pipe joint
JP2000144838A (en) * 1998-11-09 2000-05-26 Noriatsu Kojima Drain pipe joint
JP2001026955A (en) * 1999-07-14 2001-01-30 Funen Akurosu Kk Drain pipe joint

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011117133A (en) * 2009-12-01 2011-06-16 Funen Akurosu Kk Junction pipe joint for drainage
JP2011153478A (en) * 2010-01-28 2011-08-11 Sekisui Chem Co Ltd Fireproof drainage collecting joint
CN110159831A (en) * 2018-09-07 2019-08-23 霍汉任 A kind of organic environmental-protection planting groove and its application method, a kind of planting greenhouse
CN110159831B (en) * 2018-09-07 2023-08-22 霍汉任 Organic environment-friendly planting groove, application method thereof and planting greenhouse

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