JP2905406B2 - Drain horizontal main pipe offset upper joint - Google Patents
Drain horizontal main pipe offset upper jointInfo
- Publication number
- JP2905406B2 JP2905406B2 JP20737494A JP20737494A JP2905406B2 JP 2905406 B2 JP2905406 B2 JP 2905406B2 JP 20737494 A JP20737494 A JP 20737494A JP 20737494 A JP20737494 A JP 20737494A JP 2905406 B2 JP2905406 B2 JP 2905406B2
- Authority
- JP
- Japan
- Prior art keywords
- pipe
- drainage
- joint
- main pipe
- horizontal main
- 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
Links
Landscapes
- Sink And Installation For Waste Water (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、複数層建築物に設けら
れる排水配管における排水横主管のオフセット上部継手
に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an offset upper joint of a drain horizontal main pipe in a drain pipe provided in a multi-story building.
【０００２】[0002]
【従来の技術】一般に、複数層建築物に設けられる排水
配管は、図５に例示するように、各階の便器等の排水機
器２１に接続される横枝管２２と、各横枝管２２が接続
される集合管２３と、各階の集合管２３を連続して一直
線状にする排水立管２４と、最下層の集合管２３（又は
立管２４）下端に脚部曲管２５等を介して接続される排
水横主管２６とにより一管式に構成されている。2. Description of the Related Art Generally, as shown in FIG. 5, drain pipes provided in a multi-story building include a horizontal branch pipe 22 connected to a drainage device 21 such as a toilet on each floor, and each horizontal branch pipe 22. A connecting pipe 23 to be connected, a drainage pipe 24 that continuously and linearly collects the collecting pipes 23 on each floor, and a leg curved pipe 25 at the lower end of the lowermost collecting pipe 23 (or the standing pipe 24). The drain horizontal main pipe 26 is connected to form a single pipe.
【０００３】従来、建築物の一階がガレージとなってい
る場合、排水横主管２６は、図５に示すように、上部継
手２７と下部継手２８と中間管２９によってオフセット
部が形成されている。そして、前記両継手２７、２８が
曲管の場合、オフセット部の管内空気圧力の上昇を緩和
させるため、上部継手２７の上流側上面と下部継手２８
の下流側上面との間を連通連結する空気抜き配管２０が
設けられる。Conventionally, when the first floor of a building is a garage, the drain horizontal main pipe 26 has an offset portion formed by an upper joint 27, a lower joint 28, and an intermediate pipe 29, as shown in FIG. . When the two joints 27 and 28 are curved pipes, the upper surface of the upper joint 27 and the lower joint 28 are connected to alleviate a rise in air pressure in the pipe at the offset portion.
An air vent pipe 20 is provided for communicating with the upper surface on the downstream side.
【０００４】上記一管式排水配管は、汚水と雑排水を同
一の排水管に流すもので、立管２４内に通気立管と同じ
役割を果たす空気コアを、排水の流れによって形成する
機能を有しており、排水立管２４と並列して通気立官を
配設する必要がないため、排水配管がシンプルになる等
の利点がある。しかし、排水横主管２６にオフセット部
を設けると、空気抜き配管２０を並設しなければなら
ず、一管式排水配管のシンプル化を損ねるという問題が
ある。そこで、本願出願人は、既に、空気抜き配管が不
要で、オフセット部の管内空気圧力を、排水流量が多い
場合でも基準値以下に保持し、圧力変動が小さくかつ安
定した排水流下を可能にする排水横主管のオフセット上
部継手を提案している（実願平３−３１４６０号）。[0004] The one-pipe drainage pipe is used to flow sewage and miscellaneous drainage into the same drainage pipe, and has a function of forming an air core in the standing pipe 24 having the same function as the vented standing pipe by the flow of drainage. Since there is no need to dispose a ventilation stand in parallel with the drainage riser 24, there is an advantage that the drainage piping is simplified. However, if the offset portion is provided in the drain horizontal main pipe 26, the air vent pipe 20 must be provided side by side, and there is a problem that simplification of the single pipe drain pipe is impaired. Therefore, the applicant of the present application has already realized that drain air which does not require an air vent pipe and maintains the air pressure in the pipe of the offset portion at or below the reference value even when the flow rate of the drain water is large, and enables a stable and stable drain flow with a small pressure fluctuation. An offset upper joint for the horizontal main pipe has been proposed (Japanese Utility Model Application No. 3-31460).
【０００５】このオフセット上部継手３０は、図６に示
すように、上端が閉塞されると共に、下端にオフセット
下部継手２８の接合部３２を備えた継手本体３１内に、
略転倒Ｌ形の排水導通管３３が排水入口接合部３４を側
方に突出させると共に排出口３５を下向きにして配設さ
れ、該排水導通管３３の継手本体３１内上部壁３３Ａに
通気孔３６が設けられ、本体上部側壁に通気管３７が連
通上に設けられ、該通気管３７の外端に管内圧力が負圧
になったときに開く通気弁３８が設けられたものであ
る。As shown in FIG. 6, the offset upper joint 30 has a closed upper end and a joint body 31 having a joint 32 of the offset lower joint 28 at the lower end.
A substantially inverted L-shaped drainage conduit 33 is disposed with the drainage inlet joint 34 protruding sideways and the discharge port 35 facing downward, and a vent hole 36 is formed in an upper wall 33 </ b> A inside the joint main body 31 of the drainage conduit 33. A ventilation pipe 37 is provided on the upper side wall of the main body for communication, and a ventilation valve 38 is provided at the outer end of the ventilation pipe 37 to open when the pressure in the pipe becomes a negative pressure.
【０００６】[0006]
【発明が解決しようとする課題】ところで、従来の図６
に示すオフセット上部継手は、上記のように空気抜き配
管が不要である等の利点を有しているが、構造が複雑で
非常に高価であるという問題がある。本発明は、上述の
ような実状に鑑みてなされたもので、その目的とすると
ころは、構造が至極簡単で安価に得られ、オフセット部
の管内空気圧力を基準値以下に保持し、圧力変動が小さ
くかつ安定した排水流下に可能にする排水横主管オフセ
ット上部継手を提供するにある。The conventional FIG.
The offset upper joint shown in (1) has the advantage that the air vent pipe is not required as described above, but has a problem that the structure is complicated and very expensive. SUMMARY OF THE INVENTION The present invention has been made in view of the above-described situation, and has as its object the structure is extremely simple and inexpensive, and the air pressure in the pipe of the offset portion is maintained at a reference value or less, and the pressure fluctuation is reduced. The present invention is to provide a drain horizontal main pipe offset upper joint which enables a small and stable drain flow.
【０００７】[0007]
【課題を解決するための手段】本発明では、上記目的を
達成するために、次の技術的手段を講じた。即ち、本発
明は、複数層建築物の排水配管の立管下端又は中途或い
は最下層集合管下端に、曲管等を介して接続される排水
横主管のオフセット上部継手であって、該継手は９０度
に曲がった曲り管からなり、継手の外側弯曲壁に、上端
が外側弯曲壁内面に開口し下端が継手の下端に開口する
通気路を設け、前記通気路の下端が、継手の下端部内径
内に開口していることを特徴としている。According to the present invention, the following technical measures have been taken in order to achieve the above object. That is, the present invention is an offset upper joint of a drainage horizontal main pipe connected via a curved pipe or the like to a lower end of a drainage pipe or a middle or lower end of a lowermost collecting pipe of a drainage pipe of a multi-story building, consists bent pipe bent to 90 degrees, the outer curved wall of the joint, the upper end is only set the air passage lower end opened to the outer curved wall inner surface is opened at the lower end of the joint, the lower end of the vent passage, the joint bottom It is characterized in that it is open inside the inner diameter of the part.
【０００８】また、本発明は、前記通気路は、横主管か
らの排水が衝突したとき該排水の流れを左右に振り分け
る分水嶺を有することを特徴とする。Further, the present invention is characterized in that the ventilation path has a watershed for diverting the flow of the drainage to the right and left when the drainage from the horizontal main pipe collides.
【０００９】[0009]
【作用】本発明によれば、排水は立管から曲管、上部排
水横主管を経てオフセット上部継手に流入し、排出口か
ら中間管、オフセット下部継手を経て下部排水横主管内
に流入し、会所等へと排出される。このとき、排出流入
が少ない時には、オフセット上部継手内の空気圧力は低
く、又、負圧になることもなく安定した排水が行なわれ
る。According to the present invention, drainage flows from a standing pipe through a curved pipe, an upper drainage horizontal main pipe into an offset upper joint, from an outlet through an intermediate pipe, an offset lower joint into a lower drainage horizontal main pipe, It is discharged to the meeting place. At this time, when the amount of discharge and inflow is small, the air pressure in the offset upper joint is low, and stable drainage is performed without becoming negative pressure.
【００１０】そこで、排水流量が多くなると、前記オフ
セット上部継手内の立管部には排水が充満するが、前記
上部継手内の上部と前記立管部下方とは通気路を介して
連通されているうえ、前記立管部から流下する排水によ
って、通気路の下端吐出し口下部に排水の少ない空間が
生じるので、前記継手内上部の空気が通気路を介して吸
引排出され、前記継手内空気圧力の上昇は防止され、安
定した排水が行なわれる。Therefore, when the drainage flow rate increases, the upright portion in the offset upper joint is filled with drainage, but the upper portion in the upper joint and the lower portion of the upright portion are communicated via a ventilation path. In addition, the drainage flowing down from the standing pipe portion creates a space with less drainage below the lower discharge port at the lower end of the ventilation path, so that the air in the upper part of the joint is sucked and discharged through the ventilation path, and the air in the coupling is removed. Pressure rise is prevented, and stable drainage is performed.
【００１１】[0011]
【実施例】以下、本発明の実施例を図面に基づき説明す
る。図１〜図４は本発明上部継手の実施例を示し、該上
部継手１は、９０度に弯曲された曲り管からなり、上端
受口２の外周に横主管３の接続フランジ４が設けられ立
管部１Ａの下端部が下部継手又は中間管５の差し口６と
されている。Embodiments of the present invention will be described below with reference to the drawings. 1 to 4 show an embodiment of the upper joint of the present invention. The upper joint 1 is formed of a bent pipe curved at 90 degrees, and a connection flange 4 of a horizontal main pipe 3 is provided on the outer periphery of an upper end receiving port 2. The lower end of the standing pipe portion 1A is a lower joint or an inlet 6 of the intermediate pipe 5.
【００１２】そして、前記継手１の外側弯曲壁７には、
上端が該弯曲壁内面（７Ａ）上部に開口８し、かつ下端
が継手１の立管部１Ａ下端に開口９する通気路１０が形
成されている。この通気路１０の上部開口８は空気吸込
み口とされ、下部開口９は空気吐き出し口とされ、該通
気路１０を形成する内壁１１は、上部から下方向に向う
に従って徐々に内方に膨出され、通気路１０の断面が図
２、図４に示すように略三角状となっている。The outer curved wall 7 of the joint 1 has
An air passage 10 having an upper end opening 8 at the upper part of the inner surface (7A) of the curved wall and a lower end opening 9 at the lower end of the upright portion 1A of the joint 1 is formed. The upper opening 8 of the ventilation path 10 is an air intake port, the lower opening 9 is an air discharge port, and the inner wall 11 forming the ventilation path 10 gradually expands inward from the upper part to the lower part. The cross section of the ventilation path 10 has a substantially triangular shape as shown in FIGS.
【００１３】また、前記通気路１０を形成する外壁１２
は、上部では継手外側弯曲壁７から外方に膨出されてい
るが、前記内壁１１の継手１内に膨出するのに比例して
順次低くなり、継手１内への膨出量が最大になるところ
で、継手外側弯曲壁７外面と面一になるように形成され
ている。したがって、立管部１Ａ外周は円筒状となって
おり、前記通気路１０の下部開口（即ち吐き出し口）９
は、継手１の下端部内径内に開口しているため、差し口
６を中間管５等の受口に差し込むことができる。The outer wall 12 forming the ventilation path 10
Is bulged outward from the outer curved wall 7 at the upper part, but gradually decreases in proportion to the bulging into the joint 1 of the inner wall 11, and the amount of bulging into the joint 1 becomes the maximum. Is formed so as to be flush with the outer surface of the outer curved wall 7 of the joint. Therefore, the outer periphery of the standing pipe portion 1A is cylindrical, and the lower opening (that is, the discharge port) 9 of the ventilation passage 10 is formed.
Is opened in the inside diameter of the lower end portion of the joint 1, so that the outlet 6 can be inserted into a receiver such as the intermediate pipe 5.
【００１４】なお、通気路内壁１１の排水流通面１１Ａ
は、図３、図４に示すように、分水嶺を形成しているの
で、排水が左右に安定よく振り分けられ、通気路吐き出
し口９の下方に排水の少ない空間が形成され、通気が効
率よく行なわれる。次に、上記実施例の作用について、
図５に示す排水配管をも参照して説明する。The drainage flow surface 11A of the inner wall 11 of the ventilation passage is provided.
As shown in FIG. 3 and FIG. 4, since a watershed is formed, drainage is stably distributed to the left and right, and a space with little drainage is formed below the ventilation passage discharge port 9 to efficiently perform ventilation. It is. Next, regarding the operation of the above embodiment,
This will be described with reference to the drainage pipe shown in FIG.
【００１５】上記実施例において、排水立管から流下し
てきた排水は、曲管、上部排水横主管３を経て継手１内
に流入し、中間管５、オフセット下部継手を通り、下部
排水横主管内に流入して会所等へと排出される。そし
て、排出流量が少ないときには、オフセット上部継手１
内の空気圧力は低く、又、負圧になることもなく、安定
した排水が行なわれる。In the above embodiment, the drainage flowing down from the drainage riser flows into the joint 1 via the curved pipe and the upper drainage horizontal main pipe 3, passes through the intermediate pipe 5, the offset lower joint and passes through the lower drainage horizontal main pipe. And is discharged to the meeting place. When the discharge flow rate is small, the offset upper joint 1
The air pressure in the inside is low, and the drainage is performed without becoming negative pressure.
【００１６】そこで、排水流量が多くなると、継手１内
立管部１Ａ内には、図１に示すように、排水Ｗが充満す
るが、継手１内上部と前記立管部１Ａ下方とは、これに
開口する開口８、９及び通気路１０を介して連通してい
るうえ、前記立管部１Ａから流下する排水によって、前
記下端開口９（吐き出し口）下部に排水の少ない空間が
形成されるので、継手１内上部の空気が通気路１０を介
して吸引排出され、継手１内空気圧力の上昇は起らず、
安定した排水が行なわれる。Therefore, when the flow rate of the drainage water increases, the drainage W fills up in the inner pipe section 1A of the joint 1 as shown in FIG. The space which communicates with the openings 8 and 9 and the ventilation path 10 and which flows down from the upright portion 1A forms a space with less drainage below the lower end opening 9 (discharge port). Therefore, the air in the upper part of the joint 1 is sucked and discharged through the air passage 10, and the air pressure in the joint 1 does not increase.
Stable drainage is performed.
【００１７】このように、排水配管内は勿論のこと、前
記継手１内の空気圧力の変動が小さく、常に基準値以下
に保持され、排水の安定性が確保され、しかも騒音が減
少する。本発明は、上記実施例に限定されるものではな
く、例えば、継手１の両端に接続フランジを設けること
ができ、また、立管の下端のみならず中間部にオフセッ
ト部を設ける場合にも採用することができる。As described above, the fluctuation of the air pressure in the joint 1 as well as in the drainage pipe is small and is always kept below the reference value, so that the stability of the drainage is ensured and the noise is reduced. The present invention is not limited to the above embodiment. For example, connection flanges can be provided at both ends of the joint 1, and the invention is also applied to a case where an offset portion is provided not only at the lower end but also at an intermediate portion of the standing pipe. can do.
【００１８】[0018]
【発明の効果】本発明は、上述のように、複数層建築物
の排水配管の立管下端又は中途或いは最下層集合管下端
に、曲管等を介して接続される排水横主管のオフセット
上部継手であって、該継手は９０度に曲がった曲り管か
らなり、継手の外側弯曲壁に、上端が外側弯曲壁内面に
開口し下端が継手の下端に開口する通気路を設けたこと
を特徴とするものであるから、構造が簡単でかつ安価に
得ることができ、しかも、オフセット部分に空気抜き管
が不要で、配管のシンプル化が可能であり、管内空気圧
力を排水流量が多い場合でも基準値以下に保持でき、圧
力変動が小さく安定した排水流下を実施できる。As described above, the present invention is directed to an offset upper part of a drain horizontal main pipe connected to a lower end of a drainage pipe of a multi-story building, a lower halfway or a lower end of a lowermost collecting pipe through a curved pipe or the like. A joint comprising a bent tube bent at 90 degrees, wherein an outer curved wall of the joint is provided with a ventilation path having an upper end opened to the inner surface of the outer curved wall and a lower end opened to the lower end of the joint. Therefore, the structure can be obtained simply and inexpensively, the air vent pipe is not required at the offset part, the piping can be simplified, and the air pressure in the pipe is the standard even when the drainage flow rate is large. The pressure can be kept below the value, and the pressure fluctuation is small and the stable drainage flow can be performed.
【００１９】また、本発明は、前記通気路の下端が、継
手の下端部内径内に開口していることを特徴とするもの
であるから、管接続に全く支障なく従来の中間管又はオ
フセット下部継手を接続することができ、さらに、通気
路下端開口の下方に排水の少ない空間を形成して通気効
率の向上を図ることができる。Further, the present invention is characterized in that the lower end of the air passage is opened inside the inner diameter of the lower end portion of the joint. A joint can be connected, and further, a space with less drainage is formed below the opening at the lower end of the ventilation path, so that ventilation efficiency can be improved.
【図１】本発明の実施例を示す中央縦断面図である。FIG. 1 is a central longitudinal sectional view showing an embodiment of the present invention.
【図２】図１の平面図である。FIG. 2 is a plan view of FIG.
【図３】図１の右側面図である。FIG. 3 is a right side view of FIG. 1;
【図４】図１の下面図である。FIG. 4 is a bottom view of FIG. 1;
【図５】従来例を示す排水全体概略正面図である。FIG. 5 is a schematic front view of the entire drainage showing a conventional example.
【図６】他の従来実施例を示す中央縦断面図である。FIG. 6 is a central longitudinal sectional view showing another conventional example.
１ オフセット上部継手 ３ 上部排水横主管 ７ 外側弯曲壁 ８ 上部開口 ９ 下部開口 １０ 通気路 DESCRIPTION OF SYMBOLS 1 Offset upper joint 3 Upper drain horizontal main pipe 7 Outer curved wall 8 Upper opening 9 Lower opening 10 Ventilation path
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 実開 平４−126968（ＪＰ，Ｕ) 実開 昭55−168579（ＪＰ，Ｕ) (58)調査した分野(Int.Cl.6，ＤＢ名) E03C 1/122 ──────────────────────────────────────────────────続 き Continued on the front page (56) References JP-A 4-126968 (JP, U) JP-A 55-168579 (JP, U) (58) Fields surveyed (Int. Cl. 6 , DB name) E03C 1/122
Claims (2)
中途或いは最下層集合管下端に、曲管等を介して接続さ
れる排水横主管のオフセット上部継手であって、該継手
は９０度に曲がった曲り管からなり、継手の外側弯曲壁
に、上端が外側弯曲壁内面に開口し下端が継手の下端に
開口する通気路を設け、前記通気路の下端が、継手の下
端部内径内に開口していることを特徴とする排水横主管
オフセット上部継手。1. An offset upper joint of a horizontal drain main pipe connected to a lower end of a drainage pipe of a multi-story building, a lower end of a drainage pipe, a middle or a lower end of a lowermost collecting pipe through a curved pipe or the like, wherein the joint is 90-degree. The joint has a curved pipe, and the outer curved wall of the joint is provided with an air passage having an upper end opened to the inner surface of the outer curved wall and a lower end opened to the lower end of the joint. A drainage horizontal main pipe offset upper joint characterized by being open inside.
したとき該排水の流れを左右に振り分ける分水嶺を有す
ることを特徴とする請求項１記載の排水横主管オフセッ
ト上部継手。2. The drainage horizontal main pipe offset upper joint according to claim 1 , wherein the ventilation path has a watershed that divides the flow of the drainage right and left when the drainage from the horizontal main pipe collides.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20737494A JP2905406B2 (en) | 1994-08-31 | 1994-08-31 | Drain horizontal main pipe offset upper joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20737494A JP2905406B2 (en) | 1994-08-31 | 1994-08-31 | Drain horizontal main pipe offset upper joint |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0868085A JPH0868085A (en) | 1996-03-12 |
| JP2905406B2 true JP2905406B2 (en) | 1999-06-14 |
Family
ID=16538672
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20737494A Expired - Fee Related JP2905406B2 (en) | 1994-08-31 | 1994-08-31 | Drain horizontal main pipe offset upper joint |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2905406B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002061247A (en) * | 2000-08-11 | 2002-02-28 | Sekisui Chem Co Ltd | Drainage system for residence |
| JP2004225502A (en) * | 2003-01-20 | 2004-08-12 | Hiroshi Kawamata | Inspection hole (exclusive pipe for sewerage) |
-
1994
- 1994-08-31 JP JP20737494A patent/JP2905406B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0868085A (en) | 1996-03-12 |
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