JPH0816338B2 - Collective pipe fitting - Google Patents

Collective pipe fitting

Info

Publication number
JPH0816338B2
JPH0816338B2 JP1193209A JP19320989A JPH0816338B2 JP H0816338 B2 JPH0816338 B2 JP H0816338B2 JP 1193209 A JP1193209 A JP 1193209A JP 19320989 A JP19320989 A JP 19320989A JP H0816338 B2 JPH0816338 B2 JP H0816338B2
Authority
JP
Japan
Prior art keywords
pipe
water collecting
drainage
large diameter
branch pipe
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
JP1193209A
Other languages
Japanese (ja)
Other versions
JPH0359235A (en
Inventor
隆 草野
国昭 大西
哲弘 奥山
孝一 酒井
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sekisui Chemical Co Ltd
Original Assignee
Sekisui Chemical Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sekisui Chemical Co Ltd filed Critical Sekisui Chemical Co Ltd
Priority to JP1193209A priority Critical patent/JPH0816338B2/en
Publication of JPH0359235A publication Critical patent/JPH0359235A/en
Publication of JPH0816338B2 publication Critical patent/JPH0816338B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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  • Sink And Installation For Waste Water (AREA)
  • Branch Pipes, Bends, And The Like (AREA)

Description

【発明の詳細な説明】 (産業上の利用分野) 本発明は、中層、高層等の建築物に設けられた排水用
の立管、枝管に接続されて使用される集合管継手に関
し、さらに詳述すれば、排水管内の通気を確保すること
により、排水トラップによる封水効果が損なわれること
を防止した集合管継手に関する。
Description: TECHNICAL FIELD The present invention relates to a collective pipe joint used by being connected to a vertical pipe for drainage provided in a building such as a middle-rise building or a high-rise building, and a branch pipe, and More specifically, the present invention relates to a collecting pipe joint that prevents the water sealing effect of a drain trap from being impaired by ensuring ventilation in the drain pipe.

(従来の技術) 例えば、中層、高層建築物に取付けられる排水管は、
従来、第4図に示すように、各階層を通過するように鉛
直状に配設された立管20と、各階層に水平状に配設され
た枝管30と、該立管20および該枝管30が接続される集合
管継手60とにより構成されている。
(Prior Art) For example, drainage pipes attached to middle- and high-rise buildings are
Conventionally, as shown in FIG. 4, a vertical pipe 20 arranged vertically so as to pass through each floor, a branch pipe 30 horizontally arranged at each floor, the vertical pipe 20 and the vertical pipe 20. It is composed of a collecting pipe joint 60 to which the branch pipe 30 is connected.

従来の集合管継手60は、上方の立管20に接続される流
入筒65と、該流入筒65を通って排水が流入されるように
該流入筒65が内部に収容された大径部61と、該大径部61
の下端に連設されており、下端部が縮径された集水部62
とを有している。該集水部62の下端には下方の立管20が
接続されている。大径部61は円筒状をしており、該大径
部61に連設される集水部62は、下部になるに連れて順次
縮径された円錐台形状の漏斗状に形成されている。大径
部61の上部には。それぞれが外方へ突出するように一対
の枝管接続部63および63が相互に対向するように配設さ
れている。
The conventional collecting pipe joint 60 includes an inflow pipe 65 connected to the upper standing pipe 20 and a large-diameter portion 61 in which the inflow pipe 65 is housed so that drainage flows through the inflow pipe 65. And the large diameter portion 61
The water collecting section 62 is connected to the lower end of the
And have. The lower standing pipe 20 is connected to the lower end of the water collecting portion 62. The large-diameter portion 61 has a cylindrical shape, and the water collecting portion 62 connected to the large-diameter portion 61 is formed in a funnel shape of a truncated cone shape whose diameter is gradually reduced toward the lower portion. . At the top of the large diameter part 61. A pair of branch pipe connecting portions 63 and 63 are arranged so as to face each other so that each protrudes outward.

流入筒65から大径部61に流入した排水は、大径部61お
よび集水部62の内周面に沿って流下し、また、枝管30内
を通流する排水が枝管接続部63を介して大径部61内に流
入し、これらの排水が集水部62内にて集水される。この
ようにして集水部62内にて集められた排水は、集水部62
の下端の排水口62aを通過して下側の立管20内へ流入す
る。
The wastewater that has flowed into the large-diameter portion 61 from the inflow cylinder 65 flows down along the inner peripheral surfaces of the large-diameter portion 61 and the water collecting portion 62, and the wastewater that flows through the branch pipe 30 is the branch pipe connecting portion 63. And flows into the large-diameter portion 61 through the water, and these wastewaters are collected in the water collecting portion 62. The wastewater collected in the water collecting section 62 in this way is collected in the water collecting section 62.
It passes through the drainage port 62a at the lower end and flows into the lower standing pipe 20.

このような構成の従来の集合管継手60は、立管20およ
び各枝管30から多量の排水が集中的に流入すると、この
排水が集水部62の下部内集面に衝突して跳ね返り、この
跳ね返った排水がその勢いにより排水口62a内に流下す
ることなく該排水口62aを越えて反対側の内周面に沿っ
て上昇するという現象が生じる。このため、一旦排水口
62aを越えて内周面を上昇する排水と、集水部62の内周
面を伝って流下した排水とが集水部62の下端部分で合流
して排水口62aを一次的に塞ぐおそれがある。
In the conventional collecting pipe joint 60 having such a configuration, when a large amount of wastewater is intensively flowed in from the standing pipe 20 and each branch pipe 30, the wastewater collides with the lower inner collecting surface of the water collecting portion 62 and bounces off, A phenomenon occurs in which the bounced drainage rises along the inner peripheral surface on the opposite side beyond the drainage port 62a without flowing down into the drainage port 62a due to its force. Therefore, once the drain port
There is a risk that the drainage that rises up the inner peripheral surface beyond 62a and the drainage that flows down along the inner peripheral surface of the water collecting portion 62 may merge at the lower end portion of the water collecting portion 62 to temporarily block the drainage port 62a. is there.

このように、集合管継手60の排水口62aが一時的に閉
塞されることにより、建築物内に配設され該集合管継手
60に接続されて連通状態になった立管20および枝管30等
により構成された排水管が、排水によって一時的に閉塞
されることになり、そのために、該排水管内の空気層が
上下で連通しなくなる。そして、このような状態で、集
合管継手60における集水部62内の排水が流下すると、該
集合管継手60の上流側における排水管内が一次的に負圧
となる。その結果、各枝管30に接続されている各種衛生
厨房機器類のトラップが破水し、排水管内の悪臭が各室
内等に逆流するおそれがある。また、立管20を流下する
排水が管壁に沿って下方に流下すると水流が速くなり、
最下階の排水管の曲り部においてジャンピング現象を起
こして管を閉塞するおそれがある。これによっても立管
20内が負圧になって、トラップが破水するおそれがあ
る。
In this way, the drainage port 62a of the collecting pipe joint 60 is temporarily closed, so that the collecting pipe joint 60 is disposed in the building.
The drain pipe constituted by the standing pipe 20 and the branch pipe 30 which are connected to 60 and are in communication with each other is temporarily blocked by drainage, and therefore, the air layer in the drain pipe is above and below. Communication will be lost. Then, in such a state, when the drainage in the water collecting portion 62 of the collecting pipe joint 60 flows down, the inside of the drainage pipe on the upstream side of the collecting pipe joint 60 becomes a negative pressure temporarily. As a result, the traps of various sanitary kitchen devices connected to each branch pipe 30 may be broken, and the malodor in the drain pipe may flow back into each room or the like. Also, when the drainage flowing down the vertical pipe 20 flows downward along the pipe wall, the water flow becomes faster,
There is a risk of causing a jumping phenomenon at the bent part of the drainage pipe on the bottom floor to block the pipe. This also stands
There is a risk that the pressure inside 20 will become negative and the trap will break.

このような問題を解決するために、従来から、内部を
流下する排水に旋回流を発生させることにより、集水部
における排水口が排水で閉塞されないようにすると共
に、排水流の鉛直方向流下速度を減速することにより排
水口が閉塞されないようにした種々の通気構造を有する
集合管継手が提案されている。例えば、特公昭53−3261
4号公報、特公昭57−49798号公報、特開昭62−288795号
公報には、流入筒の下部内面に螺旋状の羽根体を突設し
た集合管継手が開示されており、このような集合管継手
では、立管から流入筒内に流入する排水は、この流入筒
内に配設された羽根体の作用により旋回流となって集水
部に流入し、旋回状態を維持して集水部の排水口から流
出するため、該排水口が排水により閉塞されることが防
止される。
In order to solve such a problem, conventionally, a swirl flow is generated in the drainage flowing down the inside so that the drainage port in the water collecting part is not blocked by the drainage and the vertical downflow speed of the drainage flow. There has been proposed a collecting pipe joint having various ventilation structures in which the drainage port is not blocked by decelerating. For example, Japanese Patent Publication Sho 53-3261
No. 4, JP-B-57-49798, and JP-A-62-288795 disclose a collective pipe joint in which a spiral blade body is projectingly provided on a lower inner surface of an inflow cylinder. In the collecting pipe joint, the drainage flowing from the standing pipe into the inflow cylinder becomes a swirl flow due to the action of the blades arranged in the inflow cylinder, and then flows into the water collecting section to maintain the swirling state and collect the swirl. Since the water flows out from the drain port of the water portion, the drain port is prevented from being blocked by the drainage.

(発明が解決しようとする課題) しかしながら、集水部内に排水を流下させる流入筒内
に羽根体を配設する構成であれば、羽根体が比較的細径
な流入筒の内面より突出しているために、この羽根体
に、排水に含まれる塵や繊維屑等が引っ掛かって堆積
し、流入筒がそれらの繊維屑等で詰まるおそれがある。
また、排水が羽根体に勢い良く当たるために、ここで衝
撃音が発生するという欠点もある。さらに、細径の流入
筒の内面に複雑な形状の羽根体を設ける必要があるの
で、製造が容易でなく経済性を損なうという欠点があ
る。
(Problems to be Solved by the Invention) However, if the blade body is arranged in the inflow cylinder that causes the drainage to flow down into the water collecting portion, the blade body projects from the inner surface of the inflow cylinder having a relatively small diameter. Therefore, dust, fiber scraps, and the like contained in the wastewater may be caught and accumulated on the blade body, and the inflow cylinder may be clogged with the fiber scraps and the like.
Further, since the drainage impinges on the blade body vigorously, there is a drawback that an impact sound is generated here. Further, since it is necessary to provide a blade body having a complicated shape on the inner surface of the inflow cylinder having a small diameter, there is a drawback that the manufacturing is not easy and the economical efficiency is impaired.

本発明は上記従来の問題を解決するものであり、その
目的とするところは、接続される立管や枝管等の排水管
内に大きい負圧が生じることを防ぐことにより、排水ト
ラップの封水効果が損なわれることを防止できると共
に、繊維屑等が内部に詰まるおそれのない集合管継手を
提供することにある。本発明の他の目的は、内部を通流
する排水による騒音を低減させることができ、また製造
が容易であるために比較的安価に製作することができる
集合管継手を提供することにある。
The present invention solves the above-mentioned conventional problems, and an object of the present invention is to prevent a large negative pressure from being generated in a drain pipe such as a vertical pipe or a branch pipe to be connected, thereby sealing a drain trap. An object of the present invention is to provide a collecting pipe joint that can prevent the effects from being impaired and that is free from the possibility of clogging of fiber scraps and the like. Another object of the present invention is to provide a collecting pipe joint which can reduce noise due to drainage flowing through the inside and can be manufactured at a relatively low cost because it is easy to manufacture.

(課題を解決するための手段) 本発明の集合管継手は、鉛直状に配設された立管およ
び水平状に配設された枝管にそれぞれ接続される集合管
継手であって、該枝管が接続される枝管接続部が設けら
れた大径部と、上方の立管に接続されて該立管を通流す
る排水が該大径部内に流入するように該大径部内に下部
が収容された流入筒と、該大径部の下端に連設されてお
り、下側になるに連れて、順次縮径されるとともに順次
周方向に捻られた多角形状の集水部と、該集水部におけ
る側面もしくは側面間のコーナー部に沿って内方に突設
されており、その突出量が下側になるに連れて順次減少
した羽根体と、を有してなり、そのことにより上記目的
が達成される。
(Means for Solving the Problem) A collecting pipe joint of the present invention is a collecting pipe joint connected to a vertically arranged standing pipe and a horizontally arranged branch pipe, respectively. A large diameter portion provided with a branch pipe connecting portion to which a pipe is connected, and a lower portion inside the large diameter portion so that drainage that is connected to an upper standing pipe and flows through the standing pipe flows into the large diameter portion. And a polygonal water collecting portion that is continuously provided at the lower end of the large-diameter portion and has a polygonal shape that is successively reduced in diameter and twisted in the circumferential direction as it goes downward. And a blade body that is provided so as to project inward along a side surface or a corner portion between the side surfaces of the water collecting portion, and that the amount of projection gradually decreases toward the lower side. The above object is achieved by the above.

また、本発明の集合管継手は、鉛直状に配設された立
管および水平状に配設された枝管にそれぞれ接続される
集合管継手であって、該枝管が接続される枝管接続部が
設けられた大径部と、上方の立管に接続されて該立管を
通流する排水が該大径部内に流入するように該大径部内
に下部が収容された流入筒と、該大径部の下端に連設さ
れており、下側になるに連れて、順次縮径されるととも
に順次周方向に捻られた多角形状であって、各側面間の
コーナー部近傍において該コーナー部に隣接する少なく
とも一方の側面に内方へ突出する突条が下側になるに連
れて該コーナー部の捻れ方向と同方向に順次捻られて形
成されている集水部と、を有してなり、そのことにより
上記目的が達成される。
Further, the collecting pipe joint of the present invention is a collecting pipe joint connected to a vertically arranged standing pipe and a horizontally arranged branch pipe, respectively, and the branch pipe to which the branch pipe is connected. A large-diameter portion provided with a connecting portion, and an inflow cylinder having a lower portion housed in the large-diameter portion so that drainage that is connected to the upper pipe and flows through the standing pipe flows into the large-diameter portion. , A polygonal shape that is continuously provided at the lower end of the large-diameter portion and that is gradually reduced in diameter toward the lower side and is twisted in the circumferential direction in sequence. A water collecting portion formed on at least one side surface adjacent to the corner portion by sequentially twisting inwardly in the same direction as the twisting direction of the corner portion as the protrusion protrudes inward. As a result, the above object is achieved.

(実施例) 以下に本発明を実施例について説明する。(Example) Hereinafter, the present invention will be described with reference to Examples.

本発明の第1実施例の集合管継手は、第1図および第
2図に示すように、複数階の建物内に鉛直状に配設され
る立管20、および建物の各階に沿って水平状に配設され
る枝管30に接続されて使用される。該集合管継手10は、
上方の立管20に接続されて該立管20から排水が流入され
る流入筒13と、該流入筒13の下部が内部に収容されて一
対の枝管接続部14および14が設けられた円筒状の大径部
11と、該大径部11の下端に一体的に連設された集水部12
とを有している。
As shown in FIG. 1 and FIG. 2, the collecting pipe joint of the first embodiment of the present invention has a vertical pipe 20 vertically arranged in a building of a plurality of floors, and a horizontal pipe along each floor of the building. It is used by being connected to a branch pipe 30 which is arranged in a shape. The collecting pipe joint 10 is
An inflow cylinder 13 connected to an upper standing pipe 20 into which waste water flows, and a cylinder provided with a pair of branch pipe connecting portions 14 and 14 in which the lower part of the inflow cylinder 13 is housed. Large diameter part
11 and a water collecting portion 12 integrally connected to the lower end of the large diameter portion 11
And have.

大径部11は、円筒状の側面部11bと該側面部11bの上端
面を覆う上面部11aとを有しており、側面部11bには、相
互に対向してそれぞれ水平状に外方へ突出する一対の枝
管接続部14および14が配設されている。各枝管接続部14
には、建物内に水平状に配設される枝管30がそれぞれ接
続される。大径部11の上面部11aの中央には、貫通口11c
が形成されており、この貫通口11cに流入筒13が嵌合さ
れている。該流入筒13の下部13aは、大径部11内に収容
されており、上部13bは大径部11の上面部11a上方に位置
している。
The large-diameter portion 11 has a cylindrical side surface portion 11b and an upper surface portion 11a that covers an upper end surface of the side surface portion 11b, and the side surface portion 11b faces each other horizontally outward. A pair of projecting branch pipe connecting portions 14 and 14 are provided. Each branch pipe connection 14
The branch pipes 30 that are horizontally arranged in the building are connected to these. At the center of the upper surface portion 11a of the large-diameter portion 11, the through hole 11c
Is formed, and the inflow cylinder 13 is fitted into the through hole 11c. The lower portion 13a of the inflow cylinder 13 is housed in the large diameter portion 11, and the upper portion 13b is located above the upper surface portion 11a of the large diameter portion 11.

該流入筒13は、上部13bが下部13aよりも若干大径の断
面真円状の円筒状であり、該上部13bに上側の立管20の
下端部が内嵌される。該流入筒13の下部13aは、第3図
(a)に示すように、上部13bよりも小径の断面真円状
の円筒状をしている。
The upper part 13b of the inflow cylinder 13 is in the shape of a cylinder with a slightly larger diameter than the lower part 13a, and the lower end of the upper pipe 20 is fitted into the upper part 13b. As shown in FIG. 3 (a), the lower portion 13a of the inflow cylinder 13 has a cylindrical shape having a smaller diameter than the upper portion 13b and having a perfect circular cross section.

大径部11の下端に連設された集水部12は、第3図
(b)(第2図のB−B線断面図)および(c)(第2
図のC−C線断面図)に示すように、断面六角形状をし
ており、下側になるに連れて順次縮径されるように、六
つの角側面12bの幅寸法が下側になるに連れて順次小さ
くなっている。しかも、該集水部12は、下側になるに連
れて順次周方向に捻られており、各側面12bが螺旋状に
湾曲している。該集水部12の下端部には排水口12aが形
成されている。そして、該排水口12aの下端に、鉛直状
の立管接続部15が連設されており、該立管接続部15に、
下側に配設される立管20の上端部が外嵌される。
The water collecting portion 12 connected to the lower end of the large diameter portion 11 is shown in FIG. 3 (b) (cross-sectional view taken along the line BB in FIG. 2) and (c) (second).
As shown in the sectional view taken along the line C-C in the drawing), the width dimension of the six corner side surfaces 12b is on the lower side so that the cross section has a hexagonal shape and the diameter is gradually reduced toward the lower side. It is getting smaller and smaller. Moreover, the water collecting portion 12 is twisted in the circumferential direction sequentially as it goes downward, and each side surface 12b is curved in a spiral shape. A drain port 12a is formed at the lower end of the water collecting section 12. Then, a vertical standing pipe connecting portion 15 is continuously provided at the lower end of the drainage port 12a, and the standing pipe connecting portion 15 is
The upper end of the standing pipe 20 arranged on the lower side is externally fitted.

各側面間のコーナー部12cは、該集水部12の軸心に対
して捻れた状態になっている。そして、各コーナー部12
cにおける一つ置きに、内方へ突出する羽根体12dが、各
コーナー部12cに沿ってそれぞれ配設されている。各羽
根体12dは、該集水部12内に突出した状態になっている
が、その突出量は、下側になるに連れて順次小さくなっ
ており、その下端は、排水口12a内周面と面一になって
いる。各羽根体12dは、集水部12上端では、その各先端
は、集水部12下端の排水口12aの周面位置よりも内方へ
は突出していない。従って、各羽根体12dは、全体が排
水口12aの内周面から内方へは突出していない。
The corner portion 12c between the side surfaces is twisted with respect to the axis of the water collecting portion 12. And each corner 12
Every other portion of c, a blade body 12d protruding inward is arranged along each corner 12c. Each blade 12d is in a state of projecting into the water collecting portion 12, but the amount of projection is gradually decreasing toward the lower side, and the lower end thereof is the inner peripheral surface of the drainage port 12a. Is flush with. At the upper end of the water collecting portion 12, the respective tip ends of the blades 12d do not protrude inward from the peripheral surface position of the drain port 12a at the lower end of the water collecting portion 12. Therefore, the entire blade body 12d does not protrude inward from the inner peripheral surface of the drain port 12a.

周方向に捻られた状態の集水部12における、上端と下
端との捻れ角度は、限定されるものではないが、例え
ば、30〜90度程度に設定することができ、この実施例で
は、第3図(b)および(c)に示すように、約45度に
わたって捻られている。また、流入筒13からの排水が大
径部11及び集水部12内周面に向かって流下するように、
流入筒13の下端は、枝管接続部14の配設位置より下方
で、しかも集水部12の上端よりも上方位置に設定するの
が好ましい。
In the water collecting portion 12 in a state of being twisted in the circumferential direction, the twist angle between the upper end and the lower end is not limited, but for example, it can be set to about 30 to 90 degrees, and in this embodiment, As shown in FIGS. 3 (b) and 3 (c), it is twisted about 45 degrees. Further, so that the drainage from the inflow tube 13 flows down toward the inner peripheral surface of the large diameter portion 11 and the water collecting portion 12,
The lower end of the inflow cylinder 13 is preferably set below the position where the branch pipe connecting portion 14 is arranged and above the upper end of the water collecting portion 12.

次に、このようにして構成される集合管継手10の作用
を説明する。
Next, the operation of the thus constructed collecting pipe joint 10 will be described.

第4図に示すように、立管20から流入筒13に流入する
排水が、大径部11内に流下して、集水部12内に流入する
と、該排水は、該集水部12の螺旋状に湾曲した各側面12
bに案内されて、旋回力が付与される。このとき、各側
面に案内される排水は、側面12b間の所定のコーナー部1
2cに配設された羽根体12dに案内されてさらに強力に旋
回力が付与される。各羽根体12dは、遠心力により外方
へ広がろうとする排水を規制し、該排水を乱すことなく
所定の旋回流とする。また、各枝管30から枝管接続部14
を通って大径部11内に流入する排水は、流入筒13の下部
13aに衝突して、あるいは流入筒13の下部13aに衝突する
ことなく、集水部12内に流入され、立管20から流入する
排水とともに、上述したようにして旋回流とされる。特
に、排水量が多くなっても、集水部12の各羽根体12dに
より排水に確実に旋回力が与えられるために、排水は旋
回流となって排水口12aから排出される。
As shown in FIG. 4, when the wastewater flowing from the standpipe 20 into the inflow tube 13 flows down into the large diameter portion 11 and flows into the water collecting portion 12, the wastewater is collected in the water collecting portion 12. Each side curved in a spiral 12
The turning force is given by being guided by b. At this time, the drainage guided to each side is the predetermined corner portion 1 between the side surfaces 12b.
The turning force is further strengthened by being guided by the blade body 12d arranged in 2c. Each blade 12d regulates the drainage that tends to spread outward due to the centrifugal force, and makes a predetermined swirl flow without disturbing the drainage. In addition, each branch pipe 30 to the branch pipe connection portion 14
The wastewater flowing through the large diameter portion 11 through the
Without colliding with the 13a or colliding with the lower part 13a of the inflow cylinder 13, the swirling flow is made as described above together with the drainage flowing into the water collecting section 12 and flowing from the standing pipe 20. In particular, even if the amount of drainage increases, the swirl force is reliably applied to the drainage by the blades 12d of the water collection unit 12, so the drainage becomes a swirl flow and is discharged from the drainage port 12a.

従って、集水部12内を流下する排水は、旋回流になる
ため、該集水部12の軸心部に空気芯が形成され、この空
気芯が上方および下方の各立管20内に連通することにな
る。
Therefore, since the wastewater flowing down in the water collecting portion 12 becomes a swirling flow, an air core is formed at the axial center of the water collecting portion 12, and the air core communicates with the upper and lower standing pipes 20. Will be done.

該集水部12内に配設される各羽根体12dは、いずれ
も、下端の排水口12a内周面から内方には突出していな
いために、排水中の中のゴミ等が各羽根体12dに係止す
るおそれがほとんどなく、また、各羽根体12dにゴミ等
が係止してもそのゴミ等を容易に除去し得る。
Since each of the blade bodies 12d arranged in the water collecting portion 12 does not project inward from the inner peripheral surface of the drainage port 12a at the lower end, dust and the like in the drainage is generated in each blade body. There is almost no risk of being caught by the blades 12d, and even if dust or the like is locked on each blade 12d, the dust or the like can be easily removed.

このような集合管継手10は、例えば、ポリ塩化ビニル
(PVC)、繊維強化プラスチック(FRP)、鋳鉄等により
製造され、流入筒13と上側の立管20、集水部12の下端に
連設された立管接続部15と下側の立管20とがフランジ結
合によりあるいはゴムパッキン結合により連結される。
また、各枝管接続部14と枝管30もフランジ結合あるいは
ゴムパッキン結合により連結される。
Such a collecting pipe joint 10 is made of, for example, polyvinyl chloride (PVC), fiber reinforced plastic (FRP), cast iron, etc., and is connected to the inflow pipe 13, the upper standing pipe 20, and the lower end of the water collecting portion 12. The vertical pipe connecting portion 15 and the lower vertical pipe 20 are connected by flange connection or rubber packing connection.
Further, each branch pipe connecting portion 14 and the branch pipe 30 are also connected by flange connection or rubber packing connection.

なお、集水部12の横断面形状は、三角形あるいは五〜
十角形等に形成することもできる。
In addition, the cross-sectional shape of the water collecting portion 12 is a triangle or five to five.
It can also be formed in a decagonal shape or the like.

本実施例の集合管継手を用いて、簡単な実験を行った
ので、その実験内容について説明する。5階建ての建物
の3階〜5階の各階に第10図に示す従来の集合管継手60
を配設し、2階に本実施例の集合管継手として、第1図
〜第4図に示す、集水部の断面形状が六角形で、一つ置
きのコーナー部にそれぞれ羽根体(3枚)を有するもの
を配設した。各集合管継手には、径が100mmの立管がそ
れぞれ接続されるとともに、径が50mmの枝管が接続され
ている。そして、各階の枝管に1.0リットル/minの流量
で排水を通流して、2階の集合管継手の管内圧力を測定
した。また、各階の排水の流量を、2.0、3.0、4.0リッ
トル/minとした場合の2階の集合管継手における管内圧
力も測定した。さらに、本実施例の集合管継手として、
集水部の断面が三角形状で各コーナー部に羽根体(3
枚)を有するものを用いて、同様の試験を行った。結果
を表1に示す。比較のために、羽根体が配設されていな
いこと以外は上記各集合管継手と同様の集合管継手を用
いて、同様の試験を行った。結果を表1に併記する。
A simple experiment was conducted using the collecting pipe joint of the present embodiment, and the contents of the experiment will be described. The conventional collecting pipe joint 60 shown in Fig. 10 is provided on each of the 3rd to 5th floors of a 5-story building.
1 to 4 as the collecting pipe joint of the present embodiment, the water collecting portion has a hexagonal cross-sectional shape, and the blade body (3) is provided at every other corner portion. The one having a sheet) is arranged. A vertical pipe having a diameter of 100 mm and a branch pipe having a diameter of 50 mm are connected to each collecting pipe joint. Then, drainage was passed through the branch pipes on each floor at a flow rate of 1.0 liter / min, and the pipe internal pressure of the second-stage collecting pipe joint was measured. In addition, the pipe pressure in the second-stage collecting pipe joint was also measured when the flow rate of drainage water on each floor was 2.0, 3.0, and 4.0 liters / min. Furthermore, as the collecting pipe joint of the present embodiment,
The water collecting section has a triangular cross section, and a blade (3
The same test was performed using the one having the (sheet). The results are shown in Table 1. For comparison, the same test was performed using the same collecting pipe joint as each of the above collecting pipe joints except that the blade body was not provided. The results are also shown in Table 1.

このように、本実施例の集合管継手では管内圧力の低
下が大幅に低減され、トラップ破水が生じるおそれがな
い。
As described above, in the collecting pipe joint of the present embodiment, the drop in the pipe internal pressure is significantly reduced, and there is no risk of trap water breakage.

本発明の第2実施例における集合管継手を、第5図お
よび第6図に示す。本実施例の集合管継手は、集水部12
が、下側になるに連れて、順次縮径されるとともに順次
周方向に捻られた六角形状であって、各側面12b間のコ
ーナー部12c近傍部において、それぞれのコーナー部12c
の捻れ方向に隣接する側面12bが内方に突出するように
屈曲されて、突条12fがそれぞれ形成されている。各突
条12fは、下側になるに連れて順次内方への突出量が減
少しており、下端では集水部12における排水口12a内周
面と面一になっている。本実施例では、各コーナー部12
cには羽根体は配設されていない。その他の構成は、前
述した第1実施例と同様であるので説明を省略する。
A collecting pipe joint in the second embodiment of the present invention is shown in FIGS. The collecting pipe joint of this embodiment has a water collecting portion 12
Is a hexagonal shape that is gradually reduced in diameter and twisted in the circumferential direction sequentially toward the lower side, and in the vicinity of the corner portions 12c between the side surfaces 12b, the respective corner portions 12c are formed.
The side surfaces 12b adjacent to each other in the twisting direction are bent so as to project inward, and the ridges 12f are formed respectively. The amount of protrusion of each of the protrusions 12f gradually decreases toward the lower side, and the lower end thereof is flush with the inner peripheral surface of the drainage port 12a of the water collecting portion 12. In this embodiment, each corner portion 12
No blade is provided in c. The rest of the configuration is the same as that of the first embodiment described above, so the explanation is omitted.

本実施例の集合管継手も、前記第1実施例の集合管継
手と同様に、集水部12内に流入する排水は、断面が六角
形状であって、下側になるに連れて、順次捻られた状態
であるとともに順次縮径された該集水部12における各側
面12bに案内されて、旋回流になり、該集水部12内を軸
心部に空気芯が形成された状態で排水口12aから排出さ
れる。
Similarly to the collecting pipe joint of the first embodiment, the collecting pipe joint of the present embodiment has a hexagonal cross-section for the drainage flowing into the water collecting portion 12, and the drainage flows sequentially toward the lower side. In a twisted state and guided to each side surface 12b of the water collecting portion 12 of which the diameter is successively reduced, a swirling flow is formed, and an air core is formed in the water collecting portion 12 at the axial center portion. It is discharged from the drain port 12a.

本実施例では、集水部12における突条12fが、全ての
側面12bに形成されている必要はなく、例えば、第7図
(a)および(b)に示すように、各側面12bの一つ置
きに突条12fを形成するようにしてもよい。
In this embodiment, the protrusions 12f in the water collecting portion 12 do not have to be formed on all the side surfaces 12b, and for example, as shown in FIGS. You may make it form the protrusion 12f at every other.

さらに、第8図(a)および(b)に示すように、該
集水部12における各突条12fに、その稜線に沿って羽根
体12gを配設するようにしてもよい。各羽根体12gは各突
条12fの稜線と、それぞれの突条12f近傍のコーナー部12
cとを結ぶ面に沿って内方に突出している。各羽根体12g
は、下側になるに連れて内方への突出量が順次減少して
おり、下端では集水部12における集水口12aの内周面と
面一になっている。その他の構成は、前述した第2実施
例と同様である。本実施例でも、集水部12の各突条12f
は全ての側面12bに形成する必要はない。また、第9図
(a)および(b)に示すように、集水部12の各突起12
fを、各側面12bの一つ置きに形成し、各羽根体12gを、
各突条12f間のコーナー部12cに配設する構成としてもよ
い。
Further, as shown in FIGS. 8 (a) and 8 (b), blades 12g may be arranged along the ridgeline of each protrusion 12f in the water collecting portion 12. Each blade 12g has a ridgeline of each rib 12f and a corner portion 12 near each rib 12f.
It projects inward along the surface connecting with c. Each feather body 12g
The amount of inward projection decreases gradually toward the lower side, and the lower end is flush with the inner peripheral surface of the water collecting port 12a in the water collecting section 12. Other configurations are similar to those of the second embodiment described above. Also in this embodiment, each protrusion 12f of the water collecting part 12
Need not be formed on all sides 12b. In addition, as shown in FIGS. 9 (a) and 9 (b), each projection 12 of the water collecting portion 12 is
f is formed on every other side 12b, and each blade 12g is
It may be arranged at the corner portion 12c between the protrusions 12f.

本実施例の集合管継手でも、集水部12内に流入した排
水は、各側面12bに沿って流下する間に旋回流になると
ともに、各羽根体12gにより一層旋回力が付与される。
排水流量が少ない場合には、各側面12bにより十分な旋
回力が付与されるが、排水流量が多くなると、各羽根体
12gによっても旋回力が付与されるために集水部12内の
排水には、集水部12の軸心部に、流量の多募に拘らず、
確実に空気芯が形成される。
Also in the collecting pipe joint of the present embodiment, the drainage flowing into the water collecting portion 12 becomes a swirling flow while flowing down along each side surface 12b, and a swirling force is further imparted by each blade body 12g.
When the drainage flow rate is low, sufficient swirling force is applied by each side surface 12b, but when the drainage flow rate is high, each blade body
The swirling force is also imparted by 12 g, so that the drainage in the water collection part 12 is in the axial center part of the water collection part 12 regardless of the increase in the flow rate.
The air core is surely formed.

(発明の効果) 本発明の集合管継手は、このように、立管から流入筒
内を介して集水部内に流入した排水、および枝管から枝
管接続部を介して該集水部内に流入した排水は、該集水
部内面に沿って流下する間に旋回流とされ、該排水は軸
心部に空気芯が形成され、その慣性を維持した状態で流
出する。従って、該排水は、該集合管継手の上下に接続
される各立管内に相互に連通する空気の芯を形成するこ
とができる。その結果、衛生厨房排水機器等から多量の
排水が該集合管継手内に集中的に流入した場合でも、排
水管内の軸心部に空気が常時、連通しているため、排水
管内の空気圧力の変動を低減できてトラップ破水を確実
に防止することができる。
(Effects of the Invention) In the collecting pipe joint of the present invention, the drainage that has flowed into the water collecting portion from the standing pipe through the inside of the inflow tube and the branch pipe into the water collecting portion through the branch pipe connecting portion as described above. The inflowing wastewater is made into a swirl flow while flowing down along the inner surface of the water collecting portion, and the wastewater flows out in a state where the air core is formed in the axial center portion and the inertia thereof is maintained. Therefore, the drainage can form air cores communicating with each other in each of the standing pipes connected to the upper and lower sides of the collecting pipe joint. As a result, even when a large amount of drainage from the sanitary kitchen drainage equipment, etc. intensively flows into the collecting pipe joint, the air is constantly communicating with the axial center of the drainage pipe, so Fluctuations can be reduced and trap breakage can be reliably prevented.

しかも、本発明の集合管継手は、細径の流入筒内に羽
根体を配設することなく排水に旋回を付与しているため
に、従来の集合管継手のように、流入筒の内面に設けた
羽根体等の突起物に、塵や繊維屑等が引っ掛かって排水
が詰まるおそおれがなく、しかも騒音の問題も生じな
い。
Moreover, since the collecting pipe joint of the present invention imparts a swirl to the drainage without disposing a blade body in the small-diameter inflow pipe, the inner surface of the inflow pipe is, unlike the conventional collecting pipe joint, There is no fear that dust or fiber scraps will be caught by the provided projections such as blades and the drainage will be clogged, and the problem of noise will not occur.

【図面の簡単な説明】[Brief description of drawings]

第1図は本発明の集合管継手の第1実施例を示す斜視
図、第2図はその縦断面図、第3図(a)、(b)、お
よび(c)はそれぞれ第2図のA−A線、B−B線、C
−C線における断面図、第4図はその動作を説明するた
めの概略図、第5図は本発明の集合管継手の第2実施例
を示す断面図、第6図(a)および(b)はそれぞれ第
5図のA−A線およびB−B線における断面図、第7図
(a)および(b)はその集水部の他の例を示す断面
図、第8図(a)および(b)は、集水部のさらに他の
例を示す断面図、第9図(a)および(b)は集水部の
さらに他の例を示す断面図、第10図は従来の集合管継手
の断面図である。 10…集合管継手、11…大径部、12…集水部、12a…排水
口、12b…側面、12c…コーナー部、12d、12g…羽根体、
12f…突条、13…流入筒、14…枝管接続部、20…立管。
FIG. 1 is a perspective view showing a first embodiment of the collecting pipe joint of the present invention, FIG. 2 is a longitudinal sectional view thereof, and FIGS. 3 (a), (b), and (c) are respectively those of FIG. A-A line, BB line, C
-C is a sectional view, FIG. 4 is a schematic view for explaining the operation, FIG. 5 is a sectional view showing a second embodiment of the collecting pipe joint of the present invention, FIGS. 6 (a) and 6 (b). ) Are cross-sectional views taken along the lines AA and BB of FIG. 5, FIGS. 7A and 7B are cross-sectional views showing other examples of the water collecting portion, and FIG. 8A. And (b) is a cross-sectional view showing still another example of the water collecting portion, FIGS. 9 (a) and (b) are cross-sectional views showing still another example of the water collecting portion, and FIG. 10 is a conventional collection. It is sectional drawing of a pipe joint. 10 ... Collecting pipe joint, 11 ... Large diameter part, 12 ... Water collecting part, 12a ... Drainage port, 12b ... Side, 12c ... Corner part, 12d, 12g ... Impeller,
12f ... ridge, 13 ... inflow tube, 14 ... branch pipe connection part, 20 ... standpipe.

───────────────────────────────────────────────────── フロントページの続き (72)発明者 酒井 孝一 大阪府大阪市都島区都島南通2丁目6番10 号 (56)参考文献 特開 昭63−243589(JP,A) 特開 昭62−288795(JP,A) 実開 昭49−28519(JP,U) 特公 昭57−49798(JP,B2) 特公 昭53−32614(JP,B2) ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Koichi Sakai 2-6-10, Miyakojima-Minamidori, Miyakojima-ku, Osaka-shi, Osaka (56) References JP-A-63-243589 (JP, A) JP-A-62-288795 (JP, A) Actual development Sho 49-28519 (JP, U) Japanese Patent 57-49798 (JP, B2) Japanese Patent 53-32614 (JP, B2)

Claims (2)

【特許請求の範囲】[Claims] 【請求項1】鉛直状に配設された立管および水平状に配
設された枝管にそれぞれ接続される集合管継手であっ
て、 該枝管が接続される枝管接続部が設けられた大径部と、 上方の立管に接続されて該立管を通流する排水が該大径
部内に流入するように該大径部内に下部が収容された流
入筒と、 該大径部の下端に連設されており、下側になるに連れ
て、順次縮径されるとともに順次周方向に捻られた多角
形状の集水部と、 該集水部における側面もしくは側面間のコーナー部に沿
って内方に突設されており、その突出量が下側になるに
連れて順次減少した羽根体と、 を有する集合管継手。
1. A collecting pipe joint, which is connected to a vertically arranged vertical pipe and a horizontally arranged branch pipe, respectively, wherein a branch pipe connecting portion to which the branch pipe is connected is provided. A large diameter part, an inflow tube connected to an upper standing pipe, the lower part of which is accommodated in the large diameter part so that the drainage flowing through the standing pipe flows into the large diameter part, and the large diameter part. And a polygonal water collecting portion that is successively reduced in diameter and gradually twisted in the circumferential direction toward the lower side, and a side surface of the water collecting portion or a corner portion between the side surfaces. And a vane body that is provided inwardly projecting along the, and the projecting amount of which gradually decreases toward the lower side.
【請求項2】鉛直状に配設された立管および水平状に配
設された枝管にそれぞれ接続される集合管継手であっ
て、 該枝管が接続される枝管接続部が設けられた大径部と、 上方の立管に接続されて該立管を通流する排水が該大径
部内に流入するように該大径部内に下部が収容された流
入筒と、 該大径部の下端に連設されており、下側になるに連れ
て、順次縮径されるとともに順次周方向に捻られた多角
形状であって、各側面間のコーナー部近傍において該コ
ーナー部に隣接する少なくとも一方の側面に内方へ突出
する突条が下側になるに連れて該コーナー部の捻れ方向
と同方向に順次捻られて形成されている集水部と、 を有する集合管継手。
2. A collective pipe joint connected to a vertically arranged vertical pipe and a horizontally arranged branch pipe, respectively, wherein a branch pipe connecting portion to which the branch pipe is connected is provided. A large diameter part, an inflow tube connected to an upper standing pipe, the lower part of which is accommodated in the large diameter part so that the drainage flowing through the standing pipe flows into the large diameter part, and the large diameter part. Is a polygonal shape that is continuously provided at the lower end of the side wall, and is gradually reduced in diameter toward the lower side and is sequentially twisted in the circumferential direction, and is adjacent to the corner portion between the side surfaces in the vicinity of the corner portion. A collecting pipe joint comprising: a water collecting portion formed on at least one side surface and being sequentially twisted in the same direction as the twisting direction of the corner portion as the inwardly projecting ridge becomes lower.
JP1193209A 1989-07-25 1989-07-25 Collective pipe fitting Expired - Fee Related JPH0816338B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1193209A JPH0816338B2 (en) 1989-07-25 1989-07-25 Collective pipe fitting

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1193209A JPH0816338B2 (en) 1989-07-25 1989-07-25 Collective pipe fitting

Publications (2)

Publication Number Publication Date
JPH0359235A JPH0359235A (en) 1991-03-14
JPH0816338B2 true JPH0816338B2 (en) 1996-02-21

Family

ID=16304117

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1193209A Expired - Fee Related JPH0816338B2 (en) 1989-07-25 1989-07-25 Collective pipe fitting

Country Status (1)

Country Link
JP (1) JPH0816338B2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4907640B2 (en) * 2008-12-22 2012-04-04 株式会社キッツ Drainage pipe fitting device

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63243589A (en) * 1987-03-30 1988-10-11 東亜高級継手バルブ製造株式会社 Drain pipe
JPS62288795A (en) * 1987-05-15 1987-12-15 株式会社クボタ Collecting pipe for drainage

Also Published As

Publication number Publication date
JPH0359235A (en) 1991-03-14

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