JPS6339511Y2 - - Google Patents
Info
- Publication number
- JPS6339511Y2 JPS6339511Y2 JP1983088044U JP8804483U JPS6339511Y2 JP S6339511 Y2 JPS6339511 Y2 JP S6339511Y2 JP 1983088044 U JP1983088044 U JP 1983088044U JP 8804483 U JP8804483 U JP 8804483U JP S6339511 Y2 JPS6339511 Y2 JP S6339511Y2
- Authority
- JP
- Japan
- Prior art keywords
- pipe
- vertical main
- section
- main pipe
- circumferential surface
- 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
- 230000002265 prevention Effects 0.000 claims description 7
- 239000010797 grey water Substances 0.000 description 5
- 230000002093 peripheral effect Effects 0.000 description 5
- 239000002351 wastewater Substances 0.000 description 4
- 238000013459 approach Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Sink And Installation For Waste Water (AREA)
- Branch Pipes, Bends, And The Like (AREA)
Description
【考案の詳細な説明】
本考案は、建築物における排水用の立主管と便
器または雑排水管部に接続した枝管との接続に用
いる異型管に関するものである。[Detailed Description of the Invention] The present invention relates to a special type of pipe used to connect a main drainage pipe in a building to a branch pipe connected to a toilet bowl or gray water pipe.
複層階の建築物において、上階から下階に亘る
居住区毎の排水を集中的に処理する排水設備に用
いる配管構造として、全階を貫通する立主管に、
各居住区における便器、雑排水管部からの枝管を
夫々に接続する型式のものは周知である。このさ
い立主管は円筒直管の連続形態となるが、前記各
枝管の接続部分においては、枝管を接続するため
の構造を持つ異型管を用いねばならない。かかる
異型管の従来構造は、第７図に例示するようなも
のであり、今これについてその概要を説示すれ
ば、１は上下方向に延びる立主管であり、２は立
主管１における枝管接続位置に配設される異型管
であり、同異型管２は図示のように、円筒状の立
主管部２ａ側方に横方向に突出される枝管接続部
４が一体に突出形成され、枝管接続部４に、便
器、もしくは雑排水部に接続している枝管５が連
結されるのである。処がこの従来構造のものにお
いては、立主管部内周面と枝管接続部４内周面と
が連続する連続部３は排水流の妨げとならないよ
うに円滑な曲面形状とされているため、立主管１
内を図矢印Ｘ方向に排水が流下する時、連続部３
に沿つて流下する排水の一部は矢印ｘで示すよう
に、同連続部３より枝管５内に偏流侵入し、枝管
５が接続する便器や雑排水部の封水部に逆流する
現象が生じるのである。 In multi-story buildings, a vertical main pipe that penetrates all floors is used as a piping structure for drainage equipment that centrally processes wastewater from each residential area from the upper floor to the lower floor.
A type of system in which a toilet in each residential area and a branch pipe from a gray water pipe are connected to each other is well known. In this case, the main pipe takes the form of a continuous cylindrical straight pipe, but at the connecting portions of the branch pipes, it is necessary to use deformed pipes having a structure for connecting the branch pipes. The conventional structure of such atypical pipe is as shown in FIG. 7, and to explain its outline now, 1 is a vertical main pipe extending in the vertical direction, and 2 is a branch pipe connection in the vertical main pipe 1. As shown in the figure, the same type pipe 2 has a cylindrical vertical main pipe part 2a integrally formed with a branch pipe connection part 4 which projects laterally to the side. A branch pipe 5 connected to a toilet bowl or gray water is connected to the pipe connection part 4. However, in this conventional structure, the continuous section 3 where the inner circumferential surface of the vertical main pipe section and the inner circumferential surface of the branch pipe connecting section 4 are continuous has a smooth curved shape so as not to impede the drainage flow. standing master 1
When the wastewater flows down in the direction of arrow X in the figure, the continuous part 3
As shown by the arrow x, a part of the wastewater flowing down along the same line enters the branch pipe 5 from the continuous part 3, and flows back into the toilet bowl and gray water sealing part to which the branch pipe 5 connects. occurs.
本考案は、このような立主管１中に介在され、
かつ便器や雑排水部側の枝管５との接続構造、即
ち枝管接続部４を有する異型管２部分において生
じる主排水流の逆流現象を防止することを目的と
するものであり、その特徴とするところは、主流
が通る内周面の上方にそれより大径で上位管に嵌
合される接続口縁を有する立主管部と、該立主管
部から側方に突出されかつ枝管と接続して枝流を
取入れる枝管接続部とからなる異型管において、
前記立主管部内周面と枝管接続部内周面の連続部
に、該連続部の上部に沿いかつ立主管部管軸に対
して傾斜し立主管部管軸に向つて下方に突出する
逆流防止用突部を設け、該突部の立主管部側面
に、立主管部内周面との境界を形成する上下弧縁
から中途部にかけて立主管部内周面よりも管軸か
ら離れた偏流発生用凹弧面を形成しており、該凹
弧面は周方向長さが突部周方向長さに略対応して
いる点にある。 The present invention is provided in such a vertical main pipe 1,
In addition, the purpose is to prevent the backflow phenomenon of the main drainage flow that occurs in the connection structure with the branch pipe 5 on the side of the toilet bowl and the gray water section, that is, in the irregularly shaped pipe 2 section having the branch pipe connection part 4, and its characteristics. A vertical main pipe section that has a connecting rim that has a larger diameter and fits into the upper pipe above the inner circumferential surface through which the main flow passes, and a vertical main pipe section that projects laterally from the vertical main pipe section and is connected to a branch pipe. In an atypical pipe consisting of a branch pipe connection section that takes in a branch flow,
A backflow prevention device is provided at a continuous portion of the inner circumferential surface of the vertical main pipe section and the inner circumferential surface of the branch pipe connection section, along the upper part of the continuous section, inclined with respect to the pipe axis of the vertical main pipe section, and protruding downward toward the vertical main pipe section pipe axis. On the side surface of the vertical main pipe part of the projecting part, a recess for generating drifting flow is provided which is farther from the pipe axis than the inner peripheral surface of the vertical main pipe part from the upper and lower arc edges forming the boundary with the inner peripheral surface of the vertical main pipe part to the middle part. An arcuate surface is formed, and the circumferential length of the concave arcuate surface substantially corresponds to the circumferential length of the protrusion.
以下図示の実施例について本考案を詳述する
と、第１図の実施例に示すように、立主管の管軸
方向に延びる円管状の立主管部２ａの周壁一部か
ら、前記立主管部の管軸Ｙ−Ｙと直交する管軸Ｚ
−Ｚに沿つて側方に突出する枝管接続部４を一体
に突出形成する。同図において２ｂは立主管部２
ａの上端に形成された接続口縁であり、上位管に
嵌合すべく立主管部２ａの内周面Ａより上方でそ
れより大径に形成され、また、４ａは枝管接続部
４に形成された接続口縁であり、内周面Ｂより大
径で枝管に嵌合される。本考案ではかかる異型管
２において、立主管部２ａの主流が通る内周面Ａ
と枝管接続部４の枝流を取入れる内周面Ｂとの連
続部３において、第２図、第５図及び第６図に示
すように、連続部３の周全長の少なくとも上部を
占める長さの略三日月形の逆流防止用突部６を、
連続部３に沿つて下向き突出状に一体に形成する
のである。このさい該突部６の弧状に延びる長さ
は、第２図示のように連続部３の周全長の略上部
を占める長さのものとされ、かつ連続部３の接続
口縁側頂部位置が最も長い突出長を持つと共に、
これより両側へ至るに従い左右均等状にその突出
長が順次短かくなるように漸減されることによつ
て、突部全体として略三日月形の舌片形状とされ
るのである。 The present invention will be described in detail with reference to the embodiment shown below.As shown in the embodiment shown in FIG. Pipe axis Z perpendicular to pipe axis Y-Y
- A branch pipe connection portion 4 that protrudes laterally along Z is integrally formed to protrude. In the figure, 2b is the vertical main pipe section 2.
4a is a connection edge formed at the upper end of a, and is formed above the inner circumferential surface A of the vertical main pipe section 2a and has a larger diameter in order to fit into the upper pipe; It is a formed connection rim, which has a larger diameter than the inner circumferential surface B and is fitted into the branch pipe. In the present invention, in such a modified pipe 2, the inner circumferential surface A through which the main flow of the vertical main pipe portion 2a passes.
As shown in FIGS. 2, 5, and 6, in the continuous portion 3 between the inner circumferential surface B of the branch pipe connection portion 4 and the inner circumferential surface B that receives the branch flow, the continuous portion 3 occupies at least the upper part of the entire circumferential length of the continuous portion 3. The approximately crescent-shaped backflow prevention protrusion 6 is
It is integrally formed in a downwardly protruding shape along the continuous portion 3. At this time, the length of the protrusion 6 extending in an arc shape is such that it occupies approximately the upper part of the entire circumferential length of the continuous portion 3, as shown in the second figure, and the top position on the side of the connection port edge of the continuous portion 3 is the most. Along with having a long protruding length,
From this point onward, the length of the protrusion gradually decreases evenly on the left and right as it approaches both sides, thereby forming the protrusion as a whole into a substantially crescent tongue shape.
この突部６の断面形状は第１図、第３図および
第４図に示す通りで、突部６の立主管部２ａ側面
には立主管部２ａ内周面の周方向に延びる凹弧面
６ａが形成され、突部６の枝管接続部４側面には
曲面６ｂが形成されている。凹弧面６ａは立主管
部２ａ内周面の円周方向に、突部６の立主管部２
ａ側面から立主管部２ａ内周面のほぼ半周位置ま
で延びており、周方向長さが突部６と略対応して
おり、立主管部内周面Ａとの境界を形成する上下
弧縁Ｅ，Ｆから中途部Ｇにかけて、立主管部内周
面Ａよりも管軸Ｙ−Ｙから離れた弧面となつてお
り、また曲面６ｂは突部６に沿つて突部６全長に
形成されている。第５図において示した斜線部イ
はこの凹弧面６ａの展開図形である。 The cross-sectional shape of the protrusion 6 is as shown in FIGS. 1, 3, and 4, and the side surface of the vertical main pipe portion 2a of the protrusion 6 has a concave arc surface extending in the circumferential direction of the inner peripheral surface of the vertical main pipe portion 2a. 6a is formed, and a curved surface 6b is formed on the side surface of the branch pipe connecting portion 4 of the protrusion 6. The concave arc surface 6a extends in the circumferential direction of the inner circumferential surface of the vertical main pipe section 2a of the vertical main pipe section 2 of the protrusion 6.
Upper and lower arcuate edges E extend from the side surface a to approximately half the circumference of the inner peripheral surface of the vertical main pipe section 2a, have a circumferential length that approximately corresponds to the protrusion 6, and form a boundary with the internal peripheral surface A of the vertical main pipe section. , F to the middle part G is an arcuate surface that is farther from the tube axis Y-Y than the inner circumferential surface A of the vertical main pipe part, and the curved surface 6b is formed along the entire length of the protrusion 6. . The shaded area A shown in FIG. 5 is a developed figure of this concave arc surface 6a.
更に前記突部６はその下向き突出に当つて、第
１図および第３，４図に示されるように、異型管
２の立主管部２ａにおける管軸Ｙ−Ｙに向かい、
そして管軸Ｙ−Ｙに対して傾斜している。即ち、
突部６の立主管部側面の凹弧面６ａは、その中途
部Ｇから下弧縁Ｆにかけて管軸Ｙ−Ｙに近づくよ
うに傾斜した弧面となつており、突部６は第６図
に示すように立主管部内周面Ａより径内側には突
出していない。尚各図において６ｃは突部６にお
ける三日月形の内縁、即ち傾斜突出した下端を示
している。また第１図においてθは突部６の傾斜
角度を示している。 Furthermore, when protruding downward, the protrusion 6 is directed toward the tube axis Y-Y in the vertical main pipe portion 2a of the irregular-shaped pipe 2, as shown in FIG. 1 and FIGS. 3 and 4.
And it is inclined with respect to the tube axis Y-Y. That is,
The concave arc surface 6a on the side surface of the vertical main pipe portion of the protrusion 6 is an arc surface that is inclined from the middle part G to the lower arc edge F so as to approach the tube axis Y-Y, and the protrusion 6 has an arc surface as shown in FIG. As shown in , it does not protrude radially inward from the inner circumferential surface A of the vertical main pipe portion. In each figure, 6c indicates the crescent-shaped inner edge of the protrusion 6, that is, the inclined lower end. Further, in FIG. 1, θ indicates the inclination angle of the protrusion 6.
本考案の異型管２によれば、立主管１内を下向
きに流下する排水流の内、枝管接続部４側を流下
する排水流は、突部６における凹弧面６ａによつ
て、枝管受口部４内への侵入を阻止されると共
に、その曲面形状によつて立主管部２ａの管軸Ｙ
−Ｙに向つて案内され、排水流主流と合流状に流
下することになる。このさい突部６は前記管軸Ｙ
−Ｙに対して傾斜し管軸Ｙ−Ｙに向つて下方に突
出されているため、枝管接続部４内への侵入は完
全に阻止され、従つてこの枝管接続部４に接続さ
れる枝管５内への逆流は全く生じないことになる
のである。実験の結果によれば、第７図に例示し
た従来品の場合、枝管５内への逆流水量は、上階
からの排水流量が50／分の場合、1.9〜1.3程
度、排水流量が９／分の場合、1.3〜1.2を示
すに対し、本考案の前記突部６を有するものにお
いては、上階からの排水流量50／分および９
／分の何れの場合においても、その逆流水量は
全く０であり、顕著な逆流防止効果を確認するこ
とができたものである。 According to the irregularly shaped pipe 2 of the present invention, among the drainage flows flowing downward in the main pipe 1, the drainage flows flowing down the side of the branch pipe connection part 4 are controlled by the concave arc surfaces 6a of the protrusions 6. In addition to being prevented from entering the pipe socket 4, its curved shape allows the pipe axis Y of the vertical main pipe part 2a to be
-Y, and flows down to merge with the main flow of the waste water. In this case, the protrusion 6 is
Since it is inclined with respect to -Y and projects downwards towards the pipe axis Y-Y, intrusion into the branch pipe connection part 4 is completely prevented, and therefore it is connected to this branch pipe connection part 4. This means that no backflow into the branch pipe 5 occurs. According to the experimental results, in the case of the conventional product illustrated in FIG. /min, it shows 1.3 to 1.2, whereas in the case of the one having the protrusion 6 of the present invention, the drainage flow rate from the upper floor is 50/min and 9
/min, the amount of backflow water was completely zero, confirming a remarkable backflow prevention effect.
以上詳述した本考案によれば、逆流防止用突部
の立主管部側面に凹弧面を形成し、この凹弧面を
立主管部内周面との境界を形成する上下弧縁から
中途部にかけて立主管部内周面よりも管軸から離
させているので、立主管内周面を通る主流を余り
乱すことなく偏流を発生することができ、中途部
から下弧縁まで管軸に近づく弧面となつているの
で、前記偏流は管軸に向い、枝管への逆流を防止
することができ、しかも凹弧面の周方向長さは突
部の周方向長さに略対応しているので、突部によ
る逆流防止効果と相まつて、より確実な逆流防止
ができる。 According to the present invention described in detail above, a concave arc surface is formed on the side surface of the vertical main pipe part of the backflow prevention protrusion, and this concave arc surface is formed halfway from the upper and lower arc edges forming the boundary with the inner circumferential surface of the vertical main pipe part. Since the vertical main pipe is spaced further away from the pipe axis than the inner circumferential surface of the vertical main pipe, drifting flow can be generated without disturbing the main flow passing through the vertical main pipe inner circumferential surface, and the arc approaching the pipe axis from the middle part to the lower arc edge Since it is a surface, the biased flow is directed toward the pipe axis and can prevent backflow to the branch pipe, and the circumferential length of the concave arc surface approximately corresponds to the circumferential length of the protrusion. Therefore, together with the backflow prevention effect of the protrusion, more reliable backflow prevention can be achieved.
第１図は本考案実施例の要部縦断正面図、第２
図は第１図−線矢視図、第３図は第２図−
線断面図、第４図は第２図−線断面図、第
５図は第１図−線断面図、第６図は第１図
−線断面図、第７図は従来例の縦断正面図であ
る。
１……立主管、２……異型管、２ａ……立主管
部、３……連続部、４……枝管接続部、５……枝
管、６……突部、６ａ……凹弧面。
Figure 1 is a longitudinal sectional front view of the main part of the embodiment of the present invention, Figure 2
The figure is Fig. 1 - line arrow view, Fig. 3 is Fig. 2 -
4 is a sectional view taken along the line from FIG. 2, FIG. 5 is a sectional view taken along the line taken from FIG. 1, FIG. 6 is a sectional view taken along the line taken from FIG. It is. DESCRIPTION OF SYMBOLS 1... Vertical main pipe, 2... Unusual pipe, 2a... Vertical main pipe part, 3... Continuous part, 4... Branch pipe connection part, 5... Branch pipe, 6... Projection, 6a... Concave arc surface.
Claims (1)
管に嵌合される接続口縁を有する立主管部と、該
立主管部から側方に突出されかつ枝管と接続して
枝流を取入れる枝管接続部とからなる異型管にお
いて、前記立主管部内周面と枝管接続部内周面の
連続部に、該連続部の上部に沿いかつ立主管部管
軸に対して傾斜し立主管部管軸に向つて下方に突
出する逆流防止用突部を設け、該突部の立主管部
側面に、立主管部内周面との境界を形成する上下
弧縁から中途部にかけて立主管部内周面よりも管
軸から離れた偏流発生用凹弧面を形成しており、
該凹弧面は周方向長さが突部周方向長さに略対応
していることを特徴とする異型管。 A vertical main pipe section having a connecting port edge having a larger diameter above the inner circumferential surface through which the main flow passes and is fitted into the upper pipe, and a vertical main pipe section that projects laterally from the vertical main pipe section and connects with a branch pipe to direct the branch flow. In an atypical pipe consisting of a branch pipe connection section to be taken in, a continuous section between the inner circumferential surface of the vertical main pipe section and the inner circumferential surface of the branch pipe connection section is provided with an upright section along the upper part of the continuous section and inclined with respect to the pipe axis of the vertical main pipe section. A backflow prevention protrusion that protrudes downward toward the pipe axis of the main pipe section is provided, and the protrusion extends from the upper and lower arc edges that form the boundary with the inner circumferential surface of the vertical main pipe section to the middle part of the vertical main pipe section on the side surface of the vertical main pipe section. It forms a concave arc surface for generating biased flow that is farther away from the tube axis than the circumferential surface,
An irregularly shaped pipe characterized in that the circumferential length of the concave arc surface substantially corresponds to the circumferential length of the protrusion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8804483U JPS59191494U (en) | 1983-06-08 | 1983-06-08 | Atypical tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8804483U JPS59191494U (en) | 1983-06-08 | 1983-06-08 | Atypical tube |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59191494U JPS59191494U (en) | 1984-12-19 |
| JPS6339511Y2 true JPS6339511Y2 (en) | 1988-10-17 |
Family
ID=30217957
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8804483U Granted JPS59191494U (en) | 1983-06-08 | 1983-06-08 | Atypical tube |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59191494U (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4213322B2 (en) * | 2000-02-15 | 2009-01-21 | 株式会社クボタ | Pipe for drainage |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1223532A (en) * | 1968-03-07 | 1971-02-24 | Tokyo Optical | A wide angle photoelectric detector |
| JPS51149034A (en) * | 1975-06-16 | 1976-12-21 | Nippon Serufuotsuku Kk | Propagation mode converting optical coupler |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51106924U (en) * | 1975-02-25 | 1976-08-26 |
-
1983
- 1983-06-08 JP JP8804483U patent/JPS59191494U/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1223532A (en) * | 1968-03-07 | 1971-02-24 | Tokyo Optical | A wide angle photoelectric detector |
| JPS51149034A (en) * | 1975-06-16 | 1976-12-21 | Nippon Serufuotsuku Kk | Propagation mode converting optical coupler |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59191494U (en) | 1984-12-19 |
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