JPH0527578Y2 - - Google Patents
Info
- Publication number
- JPH0527578Y2 JPH0527578Y2 JP1270789U JP1270789U JPH0527578Y2 JP H0527578 Y2 JPH0527578 Y2 JP H0527578Y2 JP 1270789 U JP1270789 U JP 1270789U JP 1270789 U JP1270789 U JP 1270789U JP H0527578 Y2 JPH0527578 Y2 JP H0527578Y2
- Authority
- JP
- Japan
- Prior art keywords
- pipe
- manhole
- main
- sewage
- horizontal short
- 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 - Lifetime
Links
- 239000010865 sewage Substances 0.000 claims description 24
- 239000002351 wastewater Substances 0.000 description 8
- 239000004568 cement Substances 0.000 description 2
- 239000008267 milk Substances 0.000 description 2
- 210000004080 milk Anatomy 0.000 description 2
- 235000013336 milk Nutrition 0.000 description 2
- 235000013351 cheese Nutrition 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000003657 drainage water Substances 0.000 description 1
- 210000002310 elbow joint Anatomy 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Sewage (AREA)
Description
【考案の詳細な説明】
（産業上の利用分野）
本考案は、下水本管からマンホール内に落下す
る排水によつて、該マンホールの底壁が浸蝕され
るのを防止した副管付きマンホールに関する。[Detailed Description of the Invention] (Field of Industrial Application) The present invention relates to a manhole with an auxiliary pipe that prevents the bottom wall of the manhole from being eroded by drainage water falling into the manhole from the main sewage pipe. .
（従来の技術とその課題）
従来の副管付きマンホールは、コンクリート製
マンホールの側壁上部に下水本管を接続し、該本
管から副管を垂下させて、該副管の下端部をマン
ホールの側壁下部に接続した構成からなつてい
た。(Prior art and its problems) A conventional manhole with a secondary pipe connects a sewage main pipe to the upper part of the side wall of a concrete manhole, suspends a secondary pipe from the main pipe, and connects the lower end of the secondary pipe to the manhole. It consisted of a structure connected to the lower part of the side wall.
ところが、下水本管とマンホールの側壁下部と
を一本の副管で接続しただけでは、下水本管内の
排水量が多いとき、あるいは排水が勢いよく流れ
ているときには排水は副管内に落下せず、そのま
ま下水本管の先端部まで流れてマンホールの側壁
上部から落下し、コンクリートの底壁を浸蝕する
という問題があつた。 However, if the main sewage pipe and the lower part of the side wall of the manhole are simply connected with a single sub-pipe, when the amount of drainage in the main sewage pipe is large, or when the wastewater is flowing vigorously, the wastewater will not fall into the sub-pipe. There was a problem in that the water flowed straight to the tip of the sewage main pipe, fell from the top of the side wall of the manhole, and eroded the concrete bottom wall.
勿論、この場合、下水本管をマンホールの側壁
上部に接続せず、下水本管内を流れる排水を全て
副管を介してマンホールの底壁近傍に流入させる
ようにすることも考えられるが、下水本管の一端
部がマンホールの側壁に開口していないと、下水
本管内の清掃、点検等が行なえないという不都合
がある。 Of course, in this case, it would be possible to not connect the main sewage pipe to the upper part of the side wall of the manhole and instead let all the wastewater flowing inside the main sewage pipe flow into the vicinity of the bottom wall of the manhole via the auxiliary pipe. If one end of the pipe does not open into the side wall of the manhole, there is an inconvenience that cleaning, inspection, etc. inside the sewage main pipe cannot be carried out.
本考案は、かかる従来の問題点を解決したもの
であつて、下水本管内の排水が勢いよく流れてい
るときでも副管を介して排水をマンホールの底壁
近傍にスムーズに流入させることができるように
した副管付きマンホールを提供するものである。 The present invention solves these conventional problems and allows wastewater to flow smoothly into the vicinity of the bottom wall of the manhole via the auxiliary pipe even when the wastewater in the main sewage pipe is flowing vigorously. The present invention provides a manhole with an auxiliary pipe as described above.
（課題を解決するための手段）
本考案のマンホールは、コンクリート製マンホ
ールの側壁上部と下部とに孔を穿設し、マンホー
ルの外側から上部孔に下水本管を接続すると共に
下部孔に横引き短管を接続し、下水本管と前記横
引き短管とを所定の間隔をもつて垂下させた複数
本の副管で接続したことを特徴とするものであ
る。(Means for solving the problem) The manhole of the present invention has holes bored in the upper and lower side walls of a concrete manhole, and a sewage main pipe is connected from the outside of the manhole to the upper hole, and the sewage main pipe is connected to the lower hole. The main sewage pipe and the horizontal short pipe are connected by a plurality of sub pipes hanging down at a predetermined interval.
（作用）
下水本管と横引き短管との間が所定間隔をもつ
て垂下した複数本の副管で接続されていると、下
水本管内を流れる排水はいずれかの副管内に落下
し、横引き短管を介してマンホールの底壁近傍に
スムーズに流入する。(Function) When the main sewage pipe and the horizontal short pipe are connected by multiple sub pipes hanging down at a predetermined interval, the wastewater flowing inside the main sewage pipe will fall into one of the sub pipes. It flows smoothly into the vicinity of the bottom wall of the manhole via the horizontal short pipe.
（実施例）
以下、本考案の具体的構成を実施例に基づいて
詳細に説明する。(Example) Hereinafter, a specific configuration of the present invention will be described in detail based on an example.
第１図は本考案の一実施例を示す部分断面正面
図であつて、図中符号１はコンクリート製マンホ
ール、２は下水本管、３は副管、４は横引き短管
である。マンホール１の側壁上部に下水本管２の
外径より若干大き目の孔１１を穿設すると共に、
マンホール１の底壁と接近した側壁下部に横引き
短管４の外径よりも若干大き目の孔１２を穿設す
る。 FIG. 1 is a partially sectional front view showing an embodiment of the present invention, in which reference numeral 1 is a concrete manhole, 2 is a main sewer pipe, 3 is an auxiliary pipe, and 4 is a horizontal short pipe. A hole 11 slightly larger than the outer diameter of the sewage main pipe 2 is bored in the upper part of the side wall of the manhole 1, and
A hole 12 slightly larger than the outer diameter of the horizontal short pipe 4 is bored in the lower part of the side wall close to the bottom wall of the manhole 1.
そこで、側壁上部の孔１１にマンホール１の外
側から下水本管２の一端部を挿入し、該管端外周
と孔１１との間にセメントミルク等を充填して固
定する。同様にして、側壁下部の孔１２に横引き
短管４の一端部を挿入し、該管端外周と孔１２と
の間にセメントミルク等を充填して固定する。 Therefore, one end of the sewage main pipe 2 is inserted into the hole 11 in the upper part of the side wall from the outside of the manhole 1, and cement milk or the like is filled between the outer periphery of the pipe end and the hole 11 and fixed. Similarly, one end of the horizontal short tube 4 is inserted into the hole 12 in the lower part of the side wall, and cement milk or the like is filled between the outer periphery of the tube end and the hole 12 and fixed.
そこで、下水本管２と横引き短管４との間を所
定間隔で垂下させた副管３で接続する。 Therefore, the main sewage pipe 2 and the horizontal short pipes 4 are connected by auxiliary pipes 3 hanging down at predetermined intervals.
尚、第１図には下水本管２と横引き短管４とを
２本の副管３ａ，３ｂで接続した場合を例示した
が、下水本管内を流れる排水の量および流速等を
考慮して３本以上の副管を用いて接続してもよ
い。 Although Fig. 1 shows an example in which the main sewage pipe 2 and the horizontal short pipe 4 are connected by two auxiliary pipes 3a and 3b, the amount and flow rate of wastewater flowing inside the main sewage pipe should be considered. The connection may be made using three or more sub-pipes.
また、下水本管と副管および副管と横引き短管
との接続は、サドル付き支管、エルボ継手、Ｔ継
手（チーズ）等の適宜の管継手を用いて接続すれ
ばよい。 Further, the sewage main pipe and the secondary pipe and the secondary pipe and the side-drawn short pipe may be connected using appropriate pipe joints such as a branch pipe with a saddle, an elbow joint, and a T-joint (cheese).
（考案の効果）
以上に述べた如く、本考案はマンホールの側壁
上部に接続した下水本管と側壁下部に接続した横
引き短管との間を所定間隔をもつて垂下させた複
数本の副管で接続したので、下水本管内を流れる
排水はいずれかの副管内に落下し、横引き短管を
介してマンホールの底壁近傍にスムーズに流入す
る。このため、下水本管内の排水量が多いとき、
あるいは排水に勢いがあるときでも、下水本管の
一端部が接続したマンホールの側壁上部から排水
は落下することがなく、従つてマンホールの底壁
が排水によつて浸蝕されることがない。(Effects of the invention) As described above, the present invention consists of a plurality of auxiliary pipes hanging at predetermined intervals between the main sewage pipe connected to the upper part of the side wall of the manhole and the horizontal short pipe connected to the lower part of the side wall. Since the pipes are connected, the wastewater flowing in the main sewer pipe falls into one of the sub pipes and flows smoothly into the vicinity of the bottom wall of the manhole via the horizontal short pipe. For this reason, when there is a large amount of drainage in the sewer mains,
Furthermore, even when the drainage is powerful, the drainage does not fall from the upper side wall of the manhole to which one end of the sewage main pipe is connected, and therefore the bottom wall of the manhole is not eroded by the drainage.
第１図は本考案の一実施例を示す部分断面正面
図である。
１……マンホール、１１，１２……孔、２……
下水本管、３，３ａ，３ｂ……副管、４……横引
き短管。
FIG. 1 is a partially sectional front view showing an embodiment of the present invention. 1...manhole, 11, 12...hole, 2...
Sewer main pipe, 3, 3a, 3b...auxiliary pipe, 4...horizontal short pipe.
Claims (1)
とに孔１１，１２を穿設し、マンホール１の外側
から前記上部孔１１に下水本管２を接続すると共
に下部孔１２に横引き短管４を接続し、下水本管
２と前記横引き短管４とを所定の間隔をもつて垂
下させた複数本の副管３で接続したことを特徴と
する副管付きマンホール。 Holes 11 and 12 are bored in the upper and lower side walls of the concrete manhole 1, and the sewage main pipe 2 is connected to the upper hole 11 from the outside of the manhole 1, and the horizontal short pipe 4 is connected to the lower hole 12. A manhole with a secondary pipe, characterized in that the main sewage pipe 2 and the horizontal short pipe 4 are connected by a plurality of secondary pipes 3 hanging down at a predetermined interval.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1270789U JPH0527578Y2 (en) | 1989-02-06 | 1989-02-06 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1270789U JPH0527578Y2 (en) | 1989-02-06 | 1989-02-06 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02106078U JPH02106078U (en) | 1990-08-23 |
| JPH0527578Y2 true JPH0527578Y2 (en) | 1993-07-14 |
Family
ID=31222391
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1270789U Expired - Lifetime JPH0527578Y2 (en) | 1989-02-06 | 1989-02-06 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0527578Y2 (en) |
-
1989
- 1989-02-06 JP JP1270789U patent/JPH0527578Y2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02106078U (en) | 1990-08-23 |
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