JPH0444954Y2 - - Google Patents
Info
- Publication number
- JPH0444954Y2 JPH0444954Y2 JP1988154814U JP15481488U JPH0444954Y2 JP H0444954 Y2 JPH0444954 Y2 JP H0444954Y2 JP 1988154814 U JP1988154814 U JP 1988154814U JP 15481488 U JP15481488 U JP 15481488U JP H0444954 Y2 JPH0444954 Y2 JP H0444954Y2
- Authority
- JP
- Japan
- Prior art keywords
- pipe
- joint
- drainage
- downstream
- upstream
- 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
Links
- 238000011144 upstream manufacturing Methods 0.000 claims description 24
- 238000004140 cleaning Methods 0.000 claims description 23
- 238000009423 ventilation Methods 0.000 claims description 14
- 230000002093 peripheral effect Effects 0.000 claims description 9
- 239000002351 wastewater Substances 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 238000012360 testing method Methods 0.000 description 4
- 239000003657 drainage water Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 235000019645 odor Nutrition 0.000 description 3
- 239000003921 oil Substances 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 239000003925 fat Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
Landscapes
- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
- Sink And Installation For Waste Water (AREA)
Description
本考案は、アパート等の高層集合住宅等におい
て、その各階に配管されている複数本の排水横枝
管を一纏めして排水立管と接続するための二層管
用中間排水継手に関する。
The present invention relates to an intermediate drainage joint for a two-layer pipe for connecting a plurality of horizontal drainage pipes installed on each floor of a high-rise housing complex such as an apartment building together with a drainage standpipe.
アパート等の高層集合住宅では、地階から最上
階まで排水立管を配管し、この立管と各階に設置
されているトイレ、洗面所等の各種排水器具から
排水横枝管とを二層管用中間排水継手で接続する
配管システムが採用されている（特開昭63−
125735号公報参照）。
In high-rise housing complexes such as apartments, a drainage standpipe is installed from the basement to the top floor, and this standpipe and drainage horizontal branch pipes from various drainage equipment such as toilets and washrooms installed on each floor are connected to a double-layer pipe intermediate pipe. A piping system that connects with a drainage joint is adopted (Japanese Patent Application Laid-open No. 1983-
(See Publication No. 125735).
ところで、上記公報の二層管用中間排水継手に
は掃除孔が設けられているが、該掃除孔は継手内
管と継手外管の各上端閉塞壁に設けられているた
め、継手内管内の清掃が簡単に行えないという問
題点があつた。
本考案は継手内管と継手外管の側壁に掃除孔を
設けることによつて従来継手の問題点を解消した
ものであつて、通水不良が発生した際には、掃除
孔に嵌挿した蓋体を取り外して継手内管内を簡単
に掃除でき、且つ、前記蓋体嵌挿状態では、継手
内管の内周壁面における掃除孔開口部に段差が生
じないようにした二層管用中間排水継手を提供す
るものである。
By the way, the cleaning holes are provided in the intermediate drainage joint for two-layer pipes in the above-mentioned publication, but since the cleaning holes are provided in the upper end closing walls of the inner pipe and the outer pipe of the joint, cleaning inside the inner pipe of the joint is difficult. The problem was that it was not easy to do. This invention solves the problems of conventional joints by providing cleaning holes in the side walls of the inner pipe and outer pipe of the joint. An intermediate drainage joint for a two-layer pipe, in which the interior of the pipe inside the joint can be easily cleaned by removing the lid, and in which no step is formed at the opening of the cleaning hole on the inner circumferential wall of the pipe in the joint when the lid is inserted. It provides:
本考案は、排水立管の上流側内管と下流側内管
を接続する継手内管と、上記排水立管の上流側外
管と下流側外管を接続して上記継手内管との間で
上流側と下流側の通気経路を形成する継手外管と
からなり、上記継手内管は、上記上流側内管が接
続される上流側接合開口部および上記下流側内管
が接続される下流側接合開口部のそれぞれよりも
径大の周壁で形成され、その下流側接合開口部に
向つて漸次先細状となる主管部と、この主管部に
連結された排水横枝管接続用の分岐管とを有し、
この分岐管は、上記主管部内において排水を遠心
力で旋回流させるべく、上記主管部の円周上の接
線と上記排水横枝管の管芯の交点として偏心連結
されている二層管用中間排水継手において、上記
継手内管と上記継手外管の側壁に同芯状に掃除孔
を設け、この掃除孔に蓋体を着脱可能に嵌挿して
該蓋体の底壁面を継手内管の側壁内周面とほぼ面
一としたことを特徴とするものである。
The present invention provides a joint inner pipe that connects an upstream inner pipe and a downstream inner pipe of a drainage standpipe, and a joint inner pipe that connects an upstream outer pipe and a downstream outer pipe of the drainage standpipe. The joint outer pipe forms an upstream and downstream ventilation path, and the joint inner pipe has an upstream joint opening to which the upstream inner pipe is connected, and a downstream joint opening to which the downstream inner pipe is connected. A main pipe section formed by a peripheral wall having a larger diameter than each of the side joint openings and gradually tapering toward the downstream joint opening, and a branch pipe connected to this main pipe section for connecting a drainage horizontal branch pipe. and has
This branch pipe is eccentrically connected at the intersection of the tangent on the circumference of the main pipe and the pipe core of the horizontal drainage pipe in order to cause the wastewater to swirl in the main pipe by centrifugal force. In the joint, cleaning holes are provided concentrically in the side walls of the joint inner pipe and the joint outer pipe, and a cover body is removably inserted into the cleaning hole so that the bottom wall surface of the cover body is inside the side wall of the joint inner pipe. It is characterized by being almost flush with the circumferential surface.
継手内管と継手外管の側壁に掃除孔が設けら
れ、この掃除孔に蓋体が着脱可能に嵌挿されてい
るので、蓋体を取り外すだけで排水立管系及び横
枝管系の管内を清掃できる。さらに、配管時の漏
水テスト等これまでに有効手段が無く、流下テス
ト等によつて行つてきた配管系の検査・試験方法
にも漏水テスト等が採用でき、施工可否によるト
ラブルも回避できないことから有効な手段となり
得るものである。
また、上記蓋体を掃除孔に嵌挿した際、その蓋
体の底壁面が継手内管の側壁内周面とほぼ面一に
なつて、該側壁内周面に段差が生じないので、例
えば、分岐管から前記継手内管内に流入して該継
手内管の内周面を旋回流する排水中の油脂、汚物
等が継手内管の内周面に付着し難く、且つ、固形
物も引つ掛かり難くなつて通水不良が発生し難く
なる。
さらに、上記継手内管と上記継手外管との間に
は通気経路が形成されているので、常に管内が大
気圧に維持され、臭気は通気経路を経て屋外に排
出されることになる。
Cleaning holes are provided on the side walls of the inner pipe and outer pipe of the joint, and a lid is removably inserted into the cleaning hole, so you can clean the inside of the drainage vertical pipe system and side branch pipe system by simply removing the lid. can be cleaned. In addition, water leakage tests can be adopted as methods for inspecting and testing piping systems, which have been carried out by flow tests, etc., for which there has been no effective means such as water leakage tests during piping, and troubles due to construction impossibility cannot be avoided. This can be an effective means. Furthermore, when the lid is inserted into the cleaning hole, the bottom wall surface of the lid is almost flush with the inner circumferential surface of the side wall of the joint inner tube, and there is no step on the inner circumferential surface of the side wall. , oil, fat, dirt, etc. in the waste water flowing from the branch pipe into the joint inner pipe and swirling around the inner peripheral surface of the joint inner pipe are difficult to adhere to the inner peripheral surface of the joint inner pipe, and solid matter is also removed. It becomes difficult to get stuck, and it becomes difficult for poor water flow to occur. Further, since a ventilation path is formed between the inner joint pipe and the outer joint pipe, the inside of the pipe is always maintained at atmospheric pressure, and odors are discharged outdoors through the ventilation path.
以下、本考案の実施例を図面に基づいて詳細に
説明する。
第１図は本考案の一実施例を示す部分縦断面
図、第２図は第１図の−線断面図であつて、
図中符号１は二層管用中間排水継手の継手内管、
２および３は管内を排水経路とする下流側および
上流側の内管、４および５は排水横枝管が接続さ
れる分岐管、６は蓋体、７は継手外管である。８
および９は上記内管２，３の外周面を所定の間隔
で覆うことにより、該内管２，３の各外周面との
間で通気経路を形成する下流側および上流側の外
管であり、上流側内管３と上流側外管９および下
流側内管２と下流側外管８とによる二層管によつ
て、上流側および下流側の排水立管が構成されて
いる。
上記継手内管１は円筒体の下方漏斗状に縮径し
て継手部（下流側接合開口部）１２を設けたもの
であり、該継手部１２には下流側内管２を接続す
る。
尚、上記継手内管１は、排水横枝管接続用の分
岐管４，５からの流入排水を旋回流させながら案
内流下させるための螺旋案内流路が形成されて下
方が漏斗状に形成されたものであつてもよい。
また、上記継手内管１の上部は天板１３で覆
い、該天板１３のほぼ中央に穿設した孔（上流側
接合開口部）に上方から垂下させた上流側内管３
を挿入接続する。このとき、上流側内管３の下端
部３１は継手内管１内に所定長さ突出させて接続
し、該下端部３１の外周と継手内管１の内周面と
の間にほぼ一定の空間部ａを形成する。
即ち、上記継手内管１は、上記上流側内管３が
接続される上流側接合開口部および上記下流側内
管２が接続される下流側接合開口部１２のそれぞ
れよりも径大の周壁で形成され、その下流側接合
開口部１２に向つて漸次先細状となる主管部（同
部）と、この主管部に連結された排水横枝管接続
用の上記分岐管４，５とを有している。
これらの分岐管４，５は、上記継手内管１の主
管部内において排水を遠心力で旋回流させるべ
く、上記主管部の円周上の接線と上記排水横枝管
の管心の交点として偏心連結されている。
尚、前記天板１３には継手内管１内を大気圧に
維持するためのスリツト１３０を介して継手内管
１内に空気が流入・排水できるようになつてい
る。
従つて、継手内管１内に排水が流入したとき、
当該横枝管と接続したトラツプが破水したり、他
方の横枝管に排水が逆流することがなく、排水は
スムーズに下流側内管２内に流下する。
また、継手内管１の側壁には、前記空間部ａと
対応する位置に接続口１４，１５が設けられてお
り、それぞれの接続口１４，１５には接線方向か
ら排水横枝管接続用の分岐管４，５が接続されて
いる。第１図および第２図は大径の分岐管４と小
径の分岐管５とを継手内管１に接続した場合を例
示したものである。
上記分岐管４を接続した接続口１４の下側に
は、継手内管１の内壁面から突出した案内突起１
１が設けられており、排水横枝管から分岐管４を
介して流入した排水がそのまま垂直方向に落下す
ることなく、継手内管１の内周面に沿つてスムー
ズに旋回運動できるようになつている。尚、分岐
管４は直管であつてもよいが、前述した旋回運動
をスムーズに行わせるためには、第２図に示した
如く所望の曲率半径で湾曲させたものを用いると
よい。
また、同様にして小径の分岐管５を接続口１５
に接続することができる。
一方、上記継手内管１の外周面は継手外管７で
所定の間隔をもつて継手外管７で覆う。
従つて、上記継手外管７は上記継手内管１との
間で通気経路を形成しており、この通気経路は、
上記上流側内管３と上流側外管９との間の通気経
路および上記下流側内管２と上記下流側外管８と
の間の通気経路にそれぞれ連通している。
かかる継手外管７は軸方向、または径方向に対
して分割可能に形成し、その内面に突設したスペ
ーサ突起７１を介して上記継手内管１の外周と継
手外管７の内周との間に所定幅の間隔を形成する
とよい。
そこで、継手内管１と継手外管７の側壁の適所
に同芯状の掃除孔１６を穿設し、該掃除孔１６に
蓋体６を着脱可能に装着する。
継手内管１と継手外管７の掃除孔１６は、第１
および２図に示した如く１つの蓋体６で一体的に
閉塞するものであつて、掃除孔１６に蓋体６を嵌
挿したときに蓋体６の底壁面が継手内管１の側壁
内周面とほぼ面一となるように形成する。
また、掃除孔１６は握りこぶしが挿入できる大
きさを有するものであれば、その形状は特に限定
されるものでなく、掃除孔１６と蓋体６との接続
は着脱自在であれば、シールリングを用いた嵌合
接続、螺合接続、その他適宜の接続構造が採用で
きる。
この継手外管７の上下を外管８，９と接続す
る。かくして、継手内管１と下流側および上流側
の内管２，３の外周側は継手外管７と外管８，９
とで上述のごとく覆われて通気経路を形成し、継
手内管１から排出された臭気は前記通気経路を経
て屋外に排出されることになる。
Hereinafter, embodiments of the present invention will be described in detail based on the drawings. FIG. 1 is a partial vertical sectional view showing an embodiment of the present invention, and FIG. 2 is a sectional view taken along the line -- in FIG.
In the figure, code 1 is the joint inner pipe of the intermediate drainage joint for two-layer pipes.
Reference numerals 2 and 3 designate inner pipes on the downstream and upstream sides, which use the insides of the pipes as drainage routes; 4 and 5 designate branch pipes to which drainage lateral branch pipes are connected; 6, a lid; and 7, a joint outer pipe. 8
and 9 are outer tubes on the downstream side and upstream side that form a ventilation path between the outer circumferential surfaces of the inner tubes 2 and 3 by covering the outer circumferential surfaces of the inner tubes 2 and 3 at a predetermined interval. The upstream and downstream drainage standpipes are constituted by two-layered pipes including the upstream inner pipe 3 and the upstream outer pipe 9, and the downstream inner pipe 2 and the downstream outer pipe 8. The joint inner pipe 1 is a cylindrical body whose diameter is reduced in the shape of a downward funnel to provide a joint portion (downstream joint opening) 12, and the downstream inner pipe 2 is connected to the joint portion 12. The joint inner pipe 1 has a funnel-shaped lower part formed with a spiral guide channel for guiding and flowing down the inflowing wastewater from the branch pipes 4 and 5 for connecting the horizontal branch pipes. It may be something like that. Further, the upper part of the joint inner pipe 1 is covered with a top plate 13, and the upstream inner pipe 3 is suspended from above into a hole (upstream joint opening) bored approximately in the center of the top plate 13.
Insert and connect. At this time, the lower end 31 of the upstream inner pipe 3 is connected by protruding a predetermined length into the joint inner pipe 1, and there is a substantially constant distance between the outer circumference of the lower end 31 and the inner peripheral surface of the joint inner pipe 1. A space part a is formed. That is, the joint inner pipe 1 has a peripheral wall having a diameter larger than each of the upstream joint opening to which the upstream inner pipe 3 is connected and the downstream joint opening 12 to which the downstream inner pipe 2 is connected. It has a main pipe part (the same part) which is formed and gradually tapers toward the downstream joint opening 12, and the branch pipes 4, 5 for connecting the drainage horizontal branch pipes connected to this main pipe part. ing. These branch pipes 4 and 5 are arranged eccentrically at the intersection of a tangent on the circumference of the main pipe and the pipe center of the horizontal drainage pipe in order to cause the drainage water to swirl in the main pipe of the joint inner pipe 1 by centrifugal force. connected. The top plate 13 is provided with a slit 130 for maintaining the inside of the joint inner tube 1 at atmospheric pressure so that air can flow into and drain from the inner joint tube 1. Therefore, when wastewater flows into the joint inner pipe 1,
The trap connected to the lateral branch pipe does not have water breakage, and the waste water does not flow back into the other lateral branch pipe, and the waste water flows smoothly into the downstream inner pipe 2. In addition, connection ports 14 and 15 are provided on the side wall of the joint inner pipe 1 at positions corresponding to the space a, and connection ports 14 and 15 are provided with connections for connecting drainage horizontal branch pipes from the tangential direction. Branch pipes 4 and 5 are connected. 1 and 2 illustrate a case where a large-diameter branch pipe 4 and a small-diameter branch pipe 5 are connected to a joint inner pipe 1. On the lower side of the connection port 14 to which the branch pipe 4 is connected, there is a guide protrusion 1 protruding from the inner wall surface of the joint inner pipe 1.
1 is provided, so that the drainage water flowing in from the drainage horizontal branch pipe through the branch pipe 4 can smoothly rotate along the inner circumferential surface of the joint inner pipe 1 without falling vertically. ing. Incidentally, the branch pipe 4 may be a straight pipe, but in order to smoothly perform the above-mentioned turning movement, it is preferable to use a pipe curved with a desired radius of curvature as shown in FIG. Similarly, connect the small diameter branch pipe 5 to the connection port 15.
can be connected to. On the other hand, the outer peripheral surface of the inner joint tube 1 is covered with the outer joint tube 7 at a predetermined interval. Therefore, the joint outer pipe 7 forms a ventilation path with the joint inner pipe 1, and this ventilation path is
It communicates with the ventilation path between the upstream inner tube 3 and the upstream outer tube 9 and the ventilation path between the downstream inner tube 2 and the downstream outer tube 8, respectively. The outer joint pipe 7 is formed to be splittable in the axial or radial direction, and the outer periphery of the inner joint pipe 1 and the inner periphery of the outer joint pipe 7 are connected via spacer protrusions 71 protruding from the inner surface thereof. It is preferable to form an interval of a predetermined width between them. Therefore, concentric cleaning holes 16 are bored at appropriate positions in the side walls of the inner joint tube 1 and the outer joint tube 7, and the lid 6 is removably attached to the cleaning holes 16. The cleaning hole 16 of the joint inner pipe 1 and the joint outer pipe 7 is the first
As shown in FIG. 2, the lid body 6 is integrally closed, and when the lid body 6 is inserted into the cleaning hole 16, the bottom wall surface of the lid body 6 is inside the side wall of the joint inner tube 1. It is formed so that it is almost flush with the circumferential surface. Further, the shape of the cleaning hole 16 is not particularly limited as long as it has a size that allows a fist to be inserted, and as long as the connection between the cleaning hole 16 and the lid body 6 is removable, a seal ring can be used. Fitting connections, screw connections, and other appropriate connection structures can be employed. The upper and lower ends of this joint outer tube 7 are connected to outer tubes 8 and 9. Thus, the outer circumferential sides of the joint inner pipe 1 and the downstream and upstream inner pipes 2 and 3 are connected to the joint outer pipe 7 and the outer pipes 8 and 9.
As described above, the joint inner pipe 1 is covered to form a ventilation path, and the odor discharged from the joint inner pipe 1 is discharged outdoors via the ventilation path.
以上の如く、本考案の二層管用中間排水継手
は、継手内管と継手外管の側壁適所に掃除孔を設
け、該掃除孔に蓋体を着脱可能に嵌挿して該蓋体
の底壁面が前記継手内管の側壁内周面とほぼ面一
になるように構成したので、前記掃除孔に蓋体を
嵌挿した際に、該蓋体によつて前記継手内管の内
周面に段差が生じるようなことはない。このた
め、継手内管に分岐管から流入して旋回流する排
水中の油脂、汚物等が前記継手内管の内周面に付
着し難く、且つ、固形物も引つ掛かり難くなつ
て、前記蓋体に起因した通水不良を未然に防止で
きるという効果がある。
また、万一、排水中の油脂、汚物等が継手内管
の内壁に付着したり、固形物が引つ掛つて通水不
良が発生した場合であつても、掃除孔に嵌挿した
蓋体を取り外すだけで簡単に掃除できる。
さらに、継手内管と継手外管との間に通気経路
が形成されているので、管内は常に大気圧に維持
され、継手内管への排水の流入・流出がスムーズ
に伝われる。このとき、臭気は通気経路を経て屋
外に排出されるので、室内に流入することがな
い。しかも、遮音性に優れているので、騒音公害
を未然に防止できるという利点がある。
As described above, the intermediate drainage joint for two-layer pipes of the present invention has cleaning holes provided at appropriate positions on the side walls of the inner pipe and outer pipe of the joint, and the lid body is removably inserted into the cleaning holes, and the bottom wall surface of the lid body is is configured to be substantially flush with the inner circumferential surface of the side wall of the inner pipe of the joint, so when the cover is inserted into the cleaning hole, the inner circumferential surface of the inner pipe of the joint is touched by the cover. There is no difference in level. For this reason, oils, fats, dirt, etc. in the waste water flowing into the joint inner pipe from the branch pipe and flowing in a swirling manner are less likely to adhere to the inner circumferential surface of the joint inner pipe, and solid objects are also less likely to get caught. This has the effect of preventing poor water flow caused by the lid. In addition, in the unlikely event that oil, dirt, etc. in the drainage water adheres to the inner wall of the inner pipe of the joint, or solid objects are caught, resulting in poor water flow, the cover that fits into the cleaning hole can be used. It can be easily cleaned by simply removing it. Furthermore, since a ventilation path is formed between the inner joint pipe and the outer joint pipe, the inside of the pipe is always maintained at atmospheric pressure, and wastewater flows smoothly into and out of the joint inner pipe. At this time, the odor is discharged outdoors through the ventilation path, so it does not flow into the room. Moreover, since it has excellent sound insulation properties, it has the advantage of being able to prevent noise pollution.
第１図は本考案の一実施例を示す部分縦断面
図、第２図は第１図の−線断面図である。
１……継手内管、１１……案内突起、１２……
継手部、１３……天板、１３０……スリツト、１
４，１５……接続口、１６……掃除孔、２，３…
…内管、４，５……分岐管、６……蓋体、７……
継手外管、８，９……外管。
FIG. 1 is a partial vertical sectional view showing an embodiment of the present invention, and FIG. 2 is a sectional view taken along the line -- in FIG. 1... Joint inner pipe, 11... Guide projection, 12...
Joint part, 13...Top plate, 130...Slit, 1
4, 15... Connection port, 16... Cleaning hole, 2, 3...
...Inner pipe, 4, 5... Branch pipe, 6... Lid, 7...
Joint outer pipe, 8, 9... Outer pipe.
Claims (1)
面との間で通気経路を形成する外管とからなる二
層管で構成された排水立管の上流側と下流側を接
続し、該接続部分でその排水立管に排水横枝管を
接続する二層管用中間排水継手であつて、上記排
水立管の上流側内管と下流側内管を接続する継手
内管と、上記排水立管の上流側外管と下流側外管
を接続して上記継手内管との間で上流側と下流側
の通気経路を形成する継手外管とからなり、上記
継手内管は、上記上流側内管が接続される上流側
接合開口部および上記下流側内管が接続される下
流側接合開口部のそれぞれよりも径大の周壁で形
成され、その下流側接合開口部に向つて漸次先細
状となる主管部と、この主管部に連結された排水
横枝管接続用の分岐管とを有し、この分岐管は、
上記主管部内において排水を遠心力で旋回流させ
るべく、上記主管部の円周上の接線と上記排水横
枝管の管芯の交点として偏心連結されている二層
管用中間排水継手において、上記継手内管と上記
継手外管の側壁に同芯状に掃除孔を設け、この掃
除孔に蓋体を着脱可能に嵌挿して該蓋体の底壁面
を継手内管の側壁内周面とほぼ面一としたことを
特徴とする二層管用中間排水継手。 Connecting the upstream and downstream sides of a drainage standpipe composed of a two-layer pipe consisting of an inner pipe with a drainage path inside the pipe and an outer pipe forming a ventilation path between the outer peripheral surface of the inner pipe, An intermediate drainage joint for a two-layer pipe that connects a drainage horizontal branch pipe to the drainage standpipe at the connection part, the joint inner pipe connecting the upstream inner pipe and the downstream inner pipe of the drainage standpipe, and The joint outer pipe connects the upstream outer pipe and the downstream outer pipe of the standpipe to form an upstream and downstream ventilation path between the joint inner pipe, and the joint inner pipe connects the upstream outer pipe and the downstream outer pipe. It is formed with a peripheral wall having a diameter larger than each of the upstream joint opening to which the side inner pipe is connected and the downstream joint opening to which the downstream inner pipe is connected, and gradually tapers toward the downstream joint opening. It has a main pipe section with a shape, and a branch pipe connected to the main pipe section for connecting a drainage horizontal branch pipe, and this branch pipe is
In the intermediate drainage joint for a two-layer pipe, which is eccentrically connected at the intersection of the tangent on the circumference of the main pipe and the pipe core of the drainage lateral branch pipe, in order to cause the drainage to swirl in the main pipe by centrifugal force, the joint Cleaning holes are provided concentrically in the side walls of the inner tube and the outer joint tube, and a lid is removably inserted into the cleaning hole so that the bottom wall surface of the lid is almost flush with the inner peripheral surface of the side wall of the inner tube of the joint. An intermediate drainage joint for two-layer pipes characterized by the following features:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988154814U JPH0444954Y2 (en) | 1988-11-30 | 1988-11-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988154814U JPH0444954Y2 (en) | 1988-11-30 | 1988-11-30 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0276294U JPH0276294U (en) | 1990-06-12 |
| JPH0444954Y2 true JPH0444954Y2 (en) | 1992-10-22 |
Family
ID=31431885
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988154814U Expired JPH0444954Y2 (en) | 1988-11-30 | 1988-11-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0444954Y2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5203181B2 (en) * | 2008-01-24 | 2013-06-05 | フネンアクロス株式会社 | Structure of two-stage confluence joint body for drainage vertical pipe |
| JP7021735B2 (en) * | 2017-08-18 | 2022-02-17 | 丸一株式会社 | Drainage fitting |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63125735A (en) * | 1986-11-14 | 1988-05-28 | 株式会社 西原衛生工業所 | Joint for two-layered pipe |
-
1988
- 1988-11-30 JP JP1988154814U patent/JPH0444954Y2/ja not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63125735A (en) * | 1986-11-14 | 1988-05-28 | 株式会社 西原衛生工業所 | Joint for two-layered pipe |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0276294U (en) | 1990-06-12 |
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