JP2000144838A - Drain pipe joint - Google Patents
Drain pipe jointInfo
- Publication number
- JP2000144838A JP2000144838A JP10317728A JP31772898A JP2000144838A JP 2000144838 A JP2000144838 A JP 2000144838A JP 10317728 A JP10317728 A JP 10317728A JP 31772898 A JP31772898 A JP 31772898A JP 2000144838 A JP2000144838 A JP 2000144838A
- Authority
- JP
- Japan
- Prior art keywords
- pipe
- pipe joint
- drainage
- horizontal branch
- 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.)
- Pending
Links
Landscapes
- Sink And Installation For Waste Water (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】この発明は、例えばマンショ
ン等の建築物において上階から下階に貫いて配管される
排水立て管に、例えば各階の大便器排水や雑排水を排水
するための横枝管を接続するための排水管継手（以下、
単に「管継手」とも言う）に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drainage stack pipe extending from an upper floor to a lower floor in a building such as an apartment building, for example, a horizontal branch for draining toilet bowl drainage and miscellaneous drainage on each floor. Drain pipe fittings for connecting pipes (hereinafter
(Also referred to simply as "pipe joints").
【０００２】[0002]
【従来の技術及びその解決課題】一般に、この種の管継
手においては、排水立て管内を流下してきた立て管排水
が横枝管内に逆流する問題を生じやすい。立て管排水が
横枝管に逆流すると、図４に示すように排水トラップＴ
の封水を補給してしまう問題が発生する。図４中、１は
排水立て管継手、２は立て管、３は横枝管を示してい
る。横枝管３が接続された当該管継手１の胴部が十分に
大きな径を有している場合にはこの逆流の問題は比較的
少ないのであるが、特に、近年この種の管継手のコンパ
クト化（横枝管が接続される胴部の小径化）が図られて
いる中、この逆流の問題は以前にも増して解決すべき課
題としてクローズアップされてきている。しかしなが
ら、未だこの逆流の問題を積極的に解消しようする試み
はなされていない。そこで、本発明は、排水立て管内を
流下する立て管排水が、横枝管に逆流することを防止で
きる排水管継手を提供することを目的とする。2. Description of the Related Art In general, in this type of pipe joint, there is a problem that the drainage of a standing pipe that has flowed down in a drainpipe flows back into a horizontal branch pipe. When the vertical stack drainage flows back to the horizontal branch pipe, the drain trap T as shown in FIG.
The problem of replenishing the seal water occurs. In FIG. 4, reference numeral 1 denotes a drainage stack fitting, 2 denotes a standpipe, and 3 denotes a horizontal branch pipe. If the body of the pipe joint 1 to which the lateral branch pipe 3 is connected has a sufficiently large diameter, the problem of the backflow is relatively small. In recent years, the problem of the backflow has been highlighted as a problem to be solved more than before, while the size of the body (the diameter of the body to which the horizontal branch pipe is connected) is being reduced. However, no attempt has been made to actively solve this problem. Therefore, an object of the present invention is to provide a drainage pipe joint capable of preventing backpipe drainage flowing down a drainpipe from flowing back to a horizontal branch pipe.
【０００３】[0003]
【課題を解決するための手段】このため、請求項１記載
の排水管継手は、排水立て管に排水横枝管を接続するた
めの排水管継手であって、前記排水横枝管を接続するた
めの受け口の管継手内壁側の開口部に沿って、該開口部
への立て管排水の逆流を防止するための逆流防止壁を管
継手内方に向けて張出し形成した。この排水管継手によ
れば、横枝管の受け口の管継手内壁側の開口部には逆流
防止壁が張り出し形成されているので、該逆流防止壁に
より立て管排水が横枝管受け口に逆流することが防止さ
れる。According to a first aspect of the present invention, there is provided a drain pipe coupling for connecting a drain horizontal branch pipe to a drain stack, wherein the drain horizontal branch pipe is connected. A backflow preventing wall for preventing backflow of the drainage of the standing pipe into the opening is formed to protrude inward of the pipe joint along the opening on the inner wall side of the pipe joint of the receiving port. According to this drainage pipe joint, a backflow prevention wall is formed so as to protrude at the opening on the pipe joint inner wall side of the receiving port of the horizontal branch pipe, so that the vertical drainage flows back to the horizontal branch pipe receiving port by the backflow prevention wall. Is prevented.
【０００４】横枝管受け口が複数設けられている場合に
は、それぞれの管継手内壁側の開口部に逆流防止壁を設
けることが望ましい。例えば、２カ所の受け口を相互に
直交する位置に備えた管継手の場合には、両開口部に跨
って張り出す庇部と、該庇部の一方の端部から一方の開
口部の左側に沿って張り出す側壁部と、他方の端部から
他方の開口部の右側に沿って張り出す側壁部とを有する
側面視略コ字状の逆流防止壁を設けることができる。When a plurality of lateral branch pipe receiving ports are provided, it is desirable to provide a backflow preventing wall at the opening on the inner wall side of each pipe joint. For example, in the case of a pipe joint provided with two receiving ports at positions orthogonal to each other, an eave portion extending over both openings and a left end of one opening from one end of the eave portion. A backflow prevention wall having a substantially U-shape in side view can be provided having a side wall portion extending along the right side and a side wall portion extending along the right side of the other opening from the other end.
【０００５】請求項２記載の排水管継手は、請求項１記
載の排水管継手であって、逆流防止壁は、横枝管受け口
の管継手内壁側の開口部の上部及び左右側部に沿って馬
蹄形状に張り出し形成した。この排水管継手によれば、
例えば立て管排水が旋回流である場合に、上方から流下
する立て管排水のみならず、斜め上方或いは側方から流
下する立て管排水の逆流をも防止することができる。The drainage pipe joint according to claim 2 is the drainage pipe joint according to claim 1, wherein the backflow prevention wall extends along the upper part and the left and right sides of the opening of the horizontal branch pipe receiving port on the pipe joint inner wall side. To form a horseshoe shape. According to this drain fitting,
For example, when the stack drainage is a swirl flow, it is possible to prevent not only the stack drainage flowing down from above but also the backflow of the stack drainage flowing down diagonally from above or from the side.
【０００６】請求項３記載の排水管継手は、請求項１記
載の排水管継手であって、逆流防止壁は、横枝管受け口
の管継手内壁側の開口部の上部から球面形状に張り出す
構成とした。この排水管継手によれば、請求項１記載の
構成による作用効果に加えて、立て管排水に混じって流
下する汚物等が逆流防止壁に堆積することを防止するこ
とができる。According to a third aspect of the present invention, there is provided the drainage pipe joint according to the first aspect, wherein the backflow prevention wall projects in a spherical shape from an upper portion of the opening on the pipe joint inner wall side of the horizontal branch pipe receiving port. The configuration was adopted. According to this drainage pipe joint, in addition to the function and effect of the configuration of claim 1, it is possible to prevent dirt and the like flowing down along with the drainage of the standing pipe from accumulating on the backflow prevention wall.
【０００７】[0007]
【発明の実施の形態】次に、本発明の実施の形態を図１
〜図３に基づいて説明する。図１は、本実施形態の管継
手１０を示している。この管継手１０は、上流側の立て
管（図示省略）を接続するための上部受け口１１と下流
側の立て管（図示省略）を接続するための下部受け口１
２と、該上部受け口１１と下部受け口１２との間の胴部
１３と、該胴部１３から側方へ突き出し状に設けられ
た、横枝管（図示省略）を接続するための横枝管受け口
１４を備えている。この横枝管受け口１４の当該管継手
内壁側の開口部（以下、単に「内側開口部１４ａ」と略
記する）の上側及び両側部に沿って逆流防止壁１５が形
成されている。本実施形態に係る管継手１０は、横枝管
受け口１４の内側開口部１４ａに、立て管排水の逆流を
防止するための逆流防止壁１５を設けたことに特徴を有
するものであり、その他の構成については従来公知の技
術に比して特に変更を要しないので、説明を省略する。FIG. 1 shows an embodiment of the present invention.
This will be described with reference to FIG. FIG. 1 shows a pipe joint 10 of the present embodiment. The pipe joint 10 has an upper receiving port 11 for connecting an upstream standing pipe (not shown) and a lower receiving port 1 for connecting a downstream standing pipe (not shown).
2, a trunk 13 between the upper receiving port 11 and the lower receiving port 12, and a horizontal branch pipe (not shown) for connecting a horizontal branch pipe (not shown) provided so as to protrude laterally from the body section 13. A receiving port 14 is provided. A backflow prevention wall 15 is formed above and along both sides of an opening (hereinafter simply abbreviated as “inside opening 14 a”) of the horizontal branch pipe receiving port 14 on the inner side of the pipe joint. The pipe joint 10 according to the present embodiment is characterized in that a backflow prevention wall 15 for preventing backflow of a vertical stack drainage is provided in an inner opening 14a of a horizontal branch pipe receiving port 14. The configuration does not need to be particularly changed as compared with the conventionally known technology, and therefore the description is omitted.
【０００８】さて、本実施形態の逆流防止壁１５は、図
２に示すように内側開口部１４ａの上側に管中心側に張
り出し形成した庇部１５ａと該庇部１５ａの両側から下
方に向けて延出した側壁部１５ｂ、１５ｂを有してい
る。図示するようにこの両側壁部１５ｂ、１５ｂが内側
開口部１４ａの両側部に位置している。庇部１５ａの上
面は、その張り出し基部側から張り出し先端側に向かっ
て下傾する方向に傾斜している。又、この庇部１５ａ
は、管中心側から見て、内側開口部１４ａの形状に沿っ
た概ね円弧形状に湾曲形成されている。As shown in FIG. 2, the backflow prevention wall 15 of the present embodiment has an eave portion 15a formed on the upper side of the inner opening portion 14a and protruding toward the center of the pipe, and extends downward from both sides of the eave portion 15a. It has extended side wall parts 15b, 15b. As shown, the side walls 15b, 15b are located on both sides of the inner opening 14a. The upper surface of the eave portion 15a is inclined in a direction in which the eave portion 15a is inclined downward from the overhang base portion toward the overhang tip end. Also, this eave portion 15a
When viewed from the tube center side, is formed into a substantially arc shape that conforms to the shape of the inner opening 14a.
【０００９】両側壁部１５ｂ、１５ｂは、断面矩形の突
条に形成されている。この両側壁部１５ｂ、１５ｂによ
り、斜め上方から流下する立て管排水或いは側方から飛
散する立て管排水の受け口１４内ひいては横枝管への逆
流を防止することができる。The both side walls 15b, 15b are formed as ridges having a rectangular cross section. The two side walls 15b, 15b can prevent the drainage of the standing pipe drainage flowing down obliquely from above or the drainage of the standing pipe draining from the side from flowing back into the receiving port 14 and eventually into the horizontal branch pipe.
【００１０】このように構成した管継手１０によれば、
横枝管受け口１４の内側開口部１４ａの上側及び両側部
に逆流防止壁１５が堰のように設けられているので、立
て管排水が受け口１４の内側開口部１４ａを経て横枝管
に逆流することが防止され、これにより排水トラップへ
の汚水（汚物や異物も含む）の流入及び吹き出し等のト
ラブルを未然に防ぐことができる。According to the pipe joint 10 configured as described above,
Since the backflow prevention walls 15 are provided like weirs on the upper side and both sides of the inner opening 14a of the lateral branch pipe receiving port 14, drainage of the standing pipe flows back into the horizontal branch pipe through the inner opening 14a of the receiving port 14. Therefore, troubles such as inflow and discharge of sewage (including filth and foreign matter) into the drain trap can be prevented.
【００１１】又、本実施形態の逆流防止壁１５の場合、
庇部１５ａに加えて両側壁部１５ｂ，１５ｂを備えてい
るので、上方から直下する立て管排水の逆流を防止でき
るのみならず、例えば旋回流のように斜め側方或いは側
方から流下する立て管排水の横枝管内への逆流をも確実
に防止することができる。In the case of the backflow prevention wall 15 of the present embodiment,
Since both the side walls 15b and 15b are provided in addition to the eaves 15a, not only can the backflow of the standing pipe drainage flowing downward from above be prevented, but also, for example, a standing flow that flows down from an oblique side or side like a swirling flow Backflow of the pipe drainage into the horizontal branch pipe can also be reliably prevented.
【００１２】上記例示した逆流防止壁１５には変更を加
えることができる。例えば、前記例示した庇部１５ａの
上面は、その張り出し基部側から張り出し先端側に向か
って下傾する方向に傾斜して形状で例示したが、図３に
示すように庇部１６ａの上面を球面形状に形成した逆流
防止壁１６としてもよい。このような球面形状の庇部１
６ａとすることにより、当該庇部１６ａに流下してきた
汚物等が堆積することをより確実に防止することができ
る。さらに、庇部を上記球面形状に代えて円盤形状或い
は角錐形状に形成してもよい。The backflow prevention wall 15 exemplified above can be modified. For example, the upper surface of the above-described eaves portion 15a is illustrated as being inclined in a direction in which the upper surface of the eaves portion 15a is inclined downward from the overhanging base portion toward the overhanging front end side. However, as shown in FIG. The backflow prevention wall 16 formed in a shape may be used. Such spherical eaves 1
By setting it to 6a, it is possible to more reliably prevent the accumulation of dirt and the like flowing down to the eaves 16a. Further, the eaves may be formed in a disk shape or a pyramid shape instead of the spherical shape.
【００１３】又、例示した庇部１５ａを管中心側からみ
て左側に下る方向に傾斜させることにより、当該庇部
に、流下する排水を平面視左回りの旋回流を発生させる
ためのフィンとしての機能を併せ持たせることができ
る。Further, by tilting the illustrated eave portion 15a to the left as viewed from the center of the tube, the drainage flowing down the eave portion is formed as a fin for generating a swirling flow counterclockwise in plan view. Functions can be added.
【００１４】その他、横枝管を接続するための受け口１
４が１カ所に設けられた管継手１０を例示して説明した
が、２カ所以上に横枝管接続用の受け口を備えた管継手
にも同様に適用することができる。又、管継手の一例と
して排水立て管継手を例示して説明したが、その他一般
的な（有効内径が立て管内径と同型の）Ｔ字形状の継手
であって、主として排水を合流させる箇所に用いる管継
手に広く適用することができる。In addition, a receiving port 1 for connecting a horizontal branch pipe.
Although the pipe joint 10 provided at one place has been described as an example, the present invention can be similarly applied to a pipe joint provided with a socket for connecting a horizontal branch pipe at two or more places. Further, the drainage pipe joint has been exemplified and described as an example of the pipe joint. However, it is a general T-shaped joint (the effective inner diameter is the same as that of the standpipe inner diameter), and is mainly used at a place where drainage is merged. It can be widely applied to the used pipe joint.
【図１】本発明の実施形態を示す図であって、排水立て
管継手の一部縦断面図である。FIG. 1 is a view showing an embodiment of the present invention, and is a partial longitudinal sectional view of a drain stack fitting.
【図２】逆流防止壁の一実施形態を示す斜視図である。FIG. 2 is a perspective view showing one embodiment of a backflow prevention wall.
【図３】逆流防止壁の別の実施形態を示す斜視図であ
る。FIG. 3 is a perspective view showing another embodiment of a backflow prevention wall.
【図４】排水立て管から横枝管へ排水が逆流する様子を
示す図である。FIG. 4 is a view showing a state in which drainage flows backward from a drain stack to a horizontal branch pipe.
１…従来の排水立て管継手 ２…排水立て管 ３…横枝管 Ｔ…排水トラップ １０…排水立て管継手 １１…上部受け口、１２…下部受け口 １３…胴部 １４…横枝管受け口、１４ａ…内側開口部 １５…逆流防止壁 １５ａ…庇部、１５ｂ…側壁部 １６…別形態の逆流防止壁 １６ａ…庇部、１６ｂ…側壁部 DESCRIPTION OF SYMBOLS 1 ... Conventional drainage stand fitting 2 ... Drainage standpipe 3 ... Horizontal branch pipe T ... Drain trap 10 ... Drainage stand fitting 11 ... Upper receptacle, 12 ... Lower receptacle 13 ... Trunk part 14 ... Horizontal branch pipe receptacle, 14a ... Inside opening 15: Backflow prevention wall 15a: Eave portion, 15b: Side wall portion 16: Another type of backflow prevention wall 16a: Eave portion, 16b: Side wall portion
Claims (3)
の排水管継手であって、前記排水横枝管を接続するため
の受け口の管継手内壁側の開口部に沿って、該開口部へ
の立て管排水の逆流を防止するための逆流防止壁を管継
手内方に向けて張出し形成した排水管継手。1. A drainage pipe joint for connecting a drainage lateral branch pipe to a drainage stackpipe, wherein the opening is formed along an opening on a pipe joint inner wall side of a receptacle for connecting the drainage horizontal branch pipe. Drainage pipe joint formed with a backflow prevention wall that protrudes toward the inside of the pipe joint to prevent backflow of vertical drainage into the section.
流防止壁は、横枝管受け口の管継手内壁側の開口部の上
部及び左右側部に沿って馬蹄形状に張り出し形成した排
水管継手。2. The drainage pipe joint according to claim 1, wherein the backflow prevention wall is formed in a horseshoe shape so as to protrude in a horseshoe shape along an upper portion and a left and right side portion of an opening on the inner wall side of the pipe joint at a lateral branch pipe receiving port. Pipe fittings.
流防止壁は、横枝管受け口の管継手内壁側の開口部の上
部から球面形状に張り出す構成とした排水管継手。3. The drainage pipe joint according to claim 1, wherein the backflow prevention wall projects in a spherical shape from an upper portion of the opening on the pipe joint inner wall side of the horizontal branch pipe receiving port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10317728A JP2000144838A (en) | 1998-11-09 | 1998-11-09 | Drain pipe joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10317728A JP2000144838A (en) | 1998-11-09 | 1998-11-09 | Drain pipe joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2000144838A true JP2000144838A (en) | 2000-05-26 |
Family
ID=18091385
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10317728A Pending JP2000144838A (en) | 1998-11-09 | 1998-11-09 | Drain pipe joint |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2000144838A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004084395A (en) * | 2002-08-28 | 2004-03-18 | Kubota Corp | Wastewater collecting pipe |
| JP2008196304A (en) * | 2008-03-24 | 2008-08-28 | Kubota Corp | Drainage collection pipe |
| JP2009001489A (en) * | 2008-08-28 | 2009-01-08 | Ｓｕｍｃｏ Ｔｅｃｈｘｉｖ株式会社 | Apparatus and method for producing single crystal |
| JP2010255348A (en) * | 2009-04-28 | 2010-11-11 | Sekisui Chem Co Ltd | Drain pipe joint and drainage structure using the drain pipe joint |
| JP2011085015A (en) * | 2011-02-03 | 2011-04-28 | Kubota Corp | Drain collecting pipe |
| JP2011085014A (en) * | 2011-02-03 | 2011-04-28 | Kubota Corp | Drain collecting pipe |
| JP2019158042A (en) * | 2018-03-14 | 2019-09-19 | 積水化学工業株式会社 | Pipe joint |
| CN113137509A (en) * | 2020-01-19 | 2021-07-20 | 盾安环境技术有限公司 | Stop valve |
| JP2023036894A (en) * | 2019-03-11 | 2023-03-14 | 株式会社クボタケミックス | Drain pipe joint |
-
1998
- 1998-11-09 JP JP10317728A patent/JP2000144838A/en active Pending
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004084395A (en) * | 2002-08-28 | 2004-03-18 | Kubota Corp | Wastewater collecting pipe |
| JP4118635B2 (en) * | 2002-08-28 | 2008-07-16 | 株式会社クボタ | Drainage collecting pipe |
| JP2008196304A (en) * | 2008-03-24 | 2008-08-28 | Kubota Corp | Drainage collection pipe |
| JP2009001489A (en) * | 2008-08-28 | 2009-01-08 | Ｓｕｍｃｏ Ｔｅｃｈｘｉｖ株式会社 | Apparatus and method for producing single crystal |
| JP2010255348A (en) * | 2009-04-28 | 2010-11-11 | Sekisui Chem Co Ltd | Drain pipe joint and drainage structure using the drain pipe joint |
| JP2011085014A (en) * | 2011-02-03 | 2011-04-28 | Kubota Corp | Drain collecting pipe |
| JP2011085015A (en) * | 2011-02-03 | 2011-04-28 | Kubota Corp | Drain collecting pipe |
| JP2019158042A (en) * | 2018-03-14 | 2019-09-19 | 積水化学工業株式会社 | Pipe joint |
| JP7284558B2 (en) | 2018-03-14 | 2023-05-31 | 積水化学工業株式会社 | pipe joint |
| JP2023036894A (en) * | 2019-03-11 | 2023-03-14 | 株式会社クボタケミックス | Drain pipe joint |
| JP7474834B2 (en) | 2019-03-11 | 2024-04-25 | 株式会社クボタケミックス | Drain Pipe Fittings |
| CN113137509A (en) * | 2020-01-19 | 2021-07-20 | 盾安环境技术有限公司 | Stop valve |
| CN113137509B (en) * | 2020-01-19 | 2023-09-15 | 盾安环境技术有限公司 | Stop valve |
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