JPH08277538A - Connecting joint for lateral sewer - Google Patents
Connecting joint for lateral sewerInfo
- Publication number
- JPH08277538A JPH08277538A JP7080919A JP8091995A JPH08277538A JP H08277538 A JPH08277538 A JP H08277538A JP 7080919 A JP7080919 A JP 7080919A JP 8091995 A JP8091995 A JP 8091995A JP H08277538 A JPH08277538 A JP H08277538A
- Authority
- JP
- Japan
- Prior art keywords
- manhole
- concrete structure
- mounting hole
- tubular portion
- 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.)
- Granted
Links
Landscapes
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
- Joints With Sleeves (AREA)
- Branch Pipes, Bends, And The Like (AREA)
Abstract
Description
【0001】[0001]
【産業上の利用分野】本発明は、汚水枡、雨水枡、マン
ホール等の枡の側壁に取付管を接続するための取付管の
接続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 a connecting joint for a mounting pipe for connecting a mounting pipe to a side wall of a drainage basin, a rainwater basin, a manhole or the like.
【0002】[0002]
【従来の技術】従来より、コンクリート製のマンホール
の側壁とヒューム管、陶管、塩化ビニル管等の取付管と
の取り付けは、マンホールの側壁に削孔された取付孔の
内周と取付管の挿入部の外周との間に円環状の弾性シー
ル部材を介して両者を結合するようにした取付管の接続
継手(以下従来の技術と呼ぶ)が知られている。2. Description of the Related Art Conventionally, the mounting of a side wall of a concrete manhole and a mounting pipe such as a fume pipe, a ceramic pipe, or a vinyl chloride pipe has been performed on the inner periphery of the mounting hole drilled on the side wall of the manhole and the mounting pipe. 2. Description of the Related Art There is known a connection joint for a mounting pipe (hereinafter referred to as a conventional technique) in which the both are connected to the outer circumference of an insertion portion via an annular elastic seal member.
【0003】[0003]
【発明が解決しようとする課題】ところが、従来の技術
においては、取付管を埋設後に、地盤沈下や地震等の地
殻変動に基づく取付管の移動によって、弾性シール部材
と取付管の挿入部の外周との間に隙間ができると、取付
管の挿入部の周囲からマンホールの内部へ地下水が流入
するという問題点があった。However, in the prior art, after the mounting pipe is buried, the outer periphery of the insertion portion of the elastic seal member and the mounting pipe is moved by the movement of the mounting pipe due to crustal movement such as ground subsidence or earthquake. If there is a gap between the and the groundwater, there is a problem that groundwater flows into the manhole from around the insertion portion of the mounting pipe.
【0004】また、マンホールの取付孔は、取付孔を形
成するためのカッターの刃の状況により内径寸法が一定
ではなかった。すなわち、カッターの刃が新品のときは
取付孔の内径が大きくなり、刃が古くなると取付孔の内
径が小さくなり、統一規格の接続継手にて取付孔内に取
付管の挿入部を取り付けることが困難であった。Further, the inner diameter of the manhole mounting hole is not constant due to the condition of the blade of the cutter for forming the mounting hole. That is, when the blade of the cutter is new, the inner diameter of the mounting hole is large, and when the blade is old, the inner diameter of the mounting hole is small, and it is possible to mount the insertion part of the mounting pipe in the mounting hole with a unified standard connection joint. It was difficult.
【0005】この発明の目的は、コンクリート構造物と
取付管との間からのコンクリート構造物内への地下水等
の不明水の流入を防止する取付管の接続継手の提供にあ
る。また、この発明の目的は、コンクリート構造物の取
付孔の内径の違いを吸収できるようにして統一規格品に
よる取付管の挿入部の取り付けが可能な取付管の接続継
手の提供にある。An object of the present invention is to provide a connection joint for a mounting pipe which prevents inflow of unknown water such as groundwater into the concrete structure from between the concrete structure and the mounting pipe. Another object of the present invention is to provide a connection joint for a mounting pipe, which can absorb the difference in the inner diameter of the mounting hole of a concrete structure and can mount the insertion portion of the mounting pipe according to a unified standard product.
【0006】[0006]
【課題を解決するための手段】請求項1に記載の発明
は、側壁に取付孔を有するコンクリート構造物と、この
コンクリート構造物の取付孔内に挿入される挿入部を有
する取付管と、この取付管の挿入部の外周に液密的に密
着した第1筒部、前記コンクリート構造物の取付孔の内
周に液密的に密着した第2筒部、および前記第1筒部の
一端側と前記第2筒部の一端側とを閉塞する環状の閉塞
部を有する弾性シール部材と、前記取付管の挿入部の外
周に前記第1筒部を固定する固定手段と、前記コンクリ
ート構造物の取付孔の内周と前記第2筒部の外周との間
に装着された水膨張性ゴムと、前記弾性シール部材内に
挿入され、前記第1筒部と前記第2筒部との空隙を拡げ
ると共に、先端部から後端部に向かって外径が徐々に大
きくなる楔形状の挿入物とを備えた技術手段を採用し
た。According to a first aspect of the present invention, there is provided a concrete structure having a mounting hole in a side wall, a mounting pipe having an insertion portion inserted into the mounting hole of the concrete structure, and A first cylinder part that is liquid-tightly adhered to the outer periphery of the insertion part of the mounting pipe, a second cylinder part that is liquid-tightly adhered to the inner periphery of the mounting hole of the concrete structure, and one end side of the first cylinder part And an elastic seal member having an annular closing portion for closing the one end side of the second tubular portion, a fixing means for fixing the first tubular portion to the outer periphery of the insertion portion of the mounting pipe, and the concrete structure. A water-expandable rubber mounted between the inner periphery of the mounting hole and the outer periphery of the second tubular portion and the elastic seal member are inserted to form a gap between the first tubular portion and the second tubular portion. A wedge-shaped insert that expands and the outer diameter gradually increases from the front end to the rear end. It was adopted technical means and a thing.
【0007】請求項2に記載の発明は、請求項1に記載
の取付管の接続継手に加えて、前記挿入物は、前記第1
筒部の内周に当接する外周面に抜け止め部を有すること
を特徴とする。請求項3に記載の発明は、請求項1また
は請求項2に記載の取付管の接続継手に加えて、前記弾
性シール部材は、前記第2筒部の先端に外周側に鍔状に
拡がり、前記コンクリート構造物の外壁に対向するフラ
ンジ部を有し、前記フランジ部と前記コンクリート構造
物の外壁との間には、シール材が装着されていることを
特徴とする。According to a second aspect of the invention, in addition to the connecting joint for the mounting pipe according to the first aspect, the insert is the first joint.
It is characterized in that it has a retaining portion on the outer peripheral surface that abuts on the inner periphery of the tubular portion. According to a third aspect of the present invention, in addition to the connection joint of the mounting pipe according to the first or second aspect, the elastic seal member spreads like a flange on the outer peripheral side at the tip of the second tubular portion, It has a flange part facing the outer wall of the concrete structure, and a sealant is attached between the flange part and the outer wall of the concrete structure.
【0008】[0008]
【発明の作用および効果】請求項1に記載の発明によれ
ば、取付管を埋設後に、地盤沈下や地震等の地殻変動に
基づいて取付管が移動しても、コンクリート構造物と取
付管の挿入部との相対変位に弾性シール部材が追従し
て、弾性シール部材の第1筒部と取付管の挿入部との間
の隙間の発生、および弾性シール部材の第2筒部とコン
クリート構造物との間に隙間の発生が抑えられる。特に
水膨張性ゴムがコンクリート構造物の取付孔の内周と弾
性シール部材の第2筒部の外周との間に装着されている
ので、弾性シール部材の第2筒部とコンクリート構造物
との間に不明水が浸入し水膨張性ゴムがその不明水を吸
水した場合に、水膨張性ゴムが体積膨張し、より弾性シ
ール部材の第2筒部とコンクリート構造物との間の隙間
の発生が抑えられる。According to the invention described in claim 1, even after the mounting pipe is buried, even if the mounting pipe moves due to crustal movement such as ground subsidence or earthquake, the concrete structure and the mounting pipe are The elastic seal member follows the relative displacement with respect to the insertion portion to generate a gap between the first cylinder portion of the elastic seal member and the insertion portion of the mounting pipe, and the second cylinder portion of the elastic seal member and the concrete structure. The occurrence of a gap between and is suppressed. In particular, since the water-expandable rubber is mounted between the inner periphery of the mounting hole of the concrete structure and the outer periphery of the second tubular portion of the elastic seal member, the second tubular portion of the elastic seal member and the concrete structure are When unknown water enters between and the water-expandable rubber absorbs the unknown water, the water-expandable rubber expands in volume, and a gap between the second cylinder portion of the elastic seal member and the concrete structure is further generated. Can be suppressed.
【0009】また、楔形状の挿入物を弾性シール部材の
第1筒部と第2筒部との間に挿入することにより、挿入
物の楔作用が発揮され、弾性シール部材の第1筒部と第
2筒部との空隙が拡げられる。これにより、弾性シール
部材の第2筒部の外周がコンクリート構造物の取付孔の
内周により液密的に密着する。このため、取付管の挿入
部の外周とコンクリート構造物の取付孔の内周からのコ
ンクリート構造物内への不明水の流入が防がれる。By inserting the wedge-shaped insert between the first and second cylinders of the elastic seal member, the wedge action of the insert is exerted, and the first cylinder of the elastic seal member is exhibited. And the gap between the second tubular portion and the second tubular portion is expanded. As a result, the outer circumference of the second cylindrical portion of the elastic seal member is liquid-tightly adhered to the inner circumference of the mounting hole of the concrete structure. Therefore, it is possible to prevent the unknown water from flowing into the concrete structure from the outer periphery of the insertion portion of the mounting pipe and the inner periphery of the mounting hole of the concrete structure.
【0010】したがって、コンクリート構造物の取付孔
の内周と取付管の挿入部の外周との間を弾性シール部材
により密封しているので、コンクリート構造物の取付孔
の内周と取付管の挿入部の外周との間からのコンクリー
ト構造物内への不明水の流入を防止することができる。Therefore, since the inner periphery of the mounting hole of the concrete structure and the outer periphery of the insertion portion of the mounting pipe are sealed by the elastic seal member, the inner periphery of the mounting hole of the concrete structure and the insertion of the mounting pipe are inserted. It is possible to prevent the unknown water from flowing into the concrete structure from between the outer circumference of the part and the outer circumference.
【0011】また、挿入物の外径が先端部から後端部に
向かって徐々に大きくなるように形成されているので、
弾性シール部材が外周側に弾性変形することにより、コ
ンクリート構造物の取付孔の内径の違いを吸収すること
ができる。これにより、コンクリート構造物の取付孔
が、取付孔を形成するためのカッターの刃の状況により
内径寸法が異なっていても、統一規格品とされた取付管
の接続継手によって、コンクリート構造物の取付孔の内
周に取付管の挿入部を確実に取り付けることができる。Further, since the outer diameter of the insert is gradually increased from the front end to the rear end,
By elastically deforming the elastic seal member toward the outer peripheral side, it is possible to absorb the difference in the inner diameter of the mounting hole of the concrete structure. As a result, even if the inner diameter of the mounting hole of the concrete structure is different depending on the condition of the blade of the cutter that forms the mounting hole, the mounting joint of the mounting pipe that is a unified standard product can be used to mount the concrete structure. The insertion portion of the mounting pipe can be securely attached to the inner circumference of the hole.
【0012】請求項2に記載の発明によれば、挿入物の
第1筒部の内周に当接する外周面に設けた抜け止め部に
より弾性シール部材の第1筒部と第2筒部との間からの
挿入物の脱落を防止することができる。請求項3に記載
の発明によれば、弾性シール部材のフランジ部とコンク
リート構造物の外壁との間にシール材が装着されている
ので、このため、弾性シール部材の第2筒部の外周とコ
ンクリート構造物の取付孔の内周からのコンクリート構
造物内への不明水の侵入を防止することができる。According to the second aspect of the invention, the first and second cylindrical portions of the elastic seal member are provided by the retaining portions provided on the outer peripheral surface which abuts the inner periphery of the first cylindrical portion of the insert. It is possible to prevent the insert from falling out of the space. According to the invention as set forth in claim 3, since the sealing material is mounted between the flange portion of the elastic seal member and the outer wall of the concrete structure, therefore, the outer periphery of the second tubular portion of the elastic seal member is It is possible to prevent unknown water from entering the concrete structure from the inner circumference of the mounting hole of the concrete structure.
【0013】[0013]
〔実施例の構成〕つぎに、本発明の取付管の接続継手を
図に示す一実施例に基づいて説明する。図1はマンホー
ルと下水本管の接続構造を示した図である。マンホール
1は、本発明のコンクリート構造物であって、コンクリ
ート製で箱体状に形成されており、上部に蓋(図示せ
ず)が取り付けられている。[Structure of Embodiment] Next, a connecting joint for a mounting pipe of the present invention will be described based on an embodiment shown in the drawings. FIG. 1 is a diagram showing a connection structure between a manhole and a sewer main. The manhole 1 is a concrete structure of the present invention, is made of concrete and is formed in a box shape, and a lid (not shown) is attached to an upper portion thereof.
【0014】なお、マンホール1の側壁2には、内周面
が平滑な面となるようにカッター(図示せず)により削
孔された円形状の取付孔3が形成されている。この取付
孔3内には、下水本管用接続継手(取付管用接続継手)
10、つまりゴムジョイント4およびスペーサー5によ
って下水本管6の挿入部61が挿入されている。その下
水本管6は、本発明の取付管であって、例えばφ200
の塩化ビニル製で円管形状に形成されており、マンホー
ル1と他のマンホール(図示せず)とを連結して家庭下
水を下水処理場に流すものである。A circular mounting hole 3 is formed in the side wall 2 of the manhole 1 by a cutter (not shown) so that the inner peripheral surface is smooth. In the mounting hole 3, a connection joint for sewer main pipe (connection joint for mounting pipe)
10, that is, the rubber joint 4 and the spacer 5 insert the insertion portion 61 of the main sewer pipe 6. The sewage main pipe 6 is a mounting pipe of the present invention, and is, for example, φ200.
It is made of vinyl chloride and is formed into a circular pipe shape, and the manhole 1 and other manholes (not shown) are connected to flow domestic sewage to a sewage treatment plant.
【0015】ゴムジョイント4は、本発明の弾性シール
部材であって、図2および図3に示したように、マンホ
ール1の取付孔3の内周と下水本管6の挿入部61の外
周との間に設けられ、スチレン・ブタジエンゴム(SB
R)製の二重筒状本体(スペーサジョイント)7、この
二重筒状本体7の外周に装着された帯状体8、および二
重筒状本体7のフランジ部11の側面に装着されたOリ
ング9等より構成されている。The rubber joint 4 is an elastic seal member of the present invention, and as shown in FIGS. 2 and 3, the inner circumference of the mounting hole 3 of the manhole 1 and the outer circumference of the insertion portion 61 of the sewer main 6. Styrene-butadiene rubber (SB
R) double tubular main body (spacer joint) 7, strip 8 attached to the outer periphery of the double tubular main body 7, and O attached to the side surface of the flange portion 11 of the double tubular main body 7. It is composed of a ring 9 and the like.
【0016】二重筒状本体7は、フランジ部11、内側
筒部12、外側筒部13、閉塞部14および中空部15
より構成されている。フランジ部11は、内側筒部12
の後端部より径方向に向かって鍔状に形成された円環板
部であって、マンホール1の取付孔3の周りの側壁2の
外壁面に対向して配置される。また、フランジ部11の
側壁2との対向面には、Oリング9が嵌め合わされるリ
ング状の嵌合溝16が形成されている。なお、嵌合溝1
6は設けなくても良い。The double tubular main body 7 includes a flange portion 11, an inner tubular portion 12, an outer tubular portion 13, a closing portion 14 and a hollow portion 15.
It is composed of The flange portion 11 is the inner tubular portion 12
The annular plate portion is formed in a flange shape from the rear end portion toward the radial direction, and is arranged to face the outer wall surface of the side wall 2 around the mounting hole 3 of the manhole 1. A ring-shaped fitting groove 16 into which the O-ring 9 is fitted is formed on the surface of the flange portion 11 facing the side wall 2. The fitting groove 1
6 may not be provided.
【0017】内側筒部12は、本発明の第1筒部であっ
て、傾斜部分17と軸方向部分18よりなり、下水本管
6の挿入部61の外周に液密的に密着するように円環状
のステンレスバンド19により締付け固定されている。
このステンレスバンド19は、本発明の固定手段であっ
て、内側筒部12の後端部の外周面に形成された周溝2
0に嵌め込まれる。なお、周溝20は設けなくても良
い。The inner tubular portion 12 is the first tubular portion of the present invention, and comprises an inclined portion 17 and an axial portion 18 so as to be liquid-tightly adhered to the outer periphery of the insertion portion 61 of the main sewer pipe 6. It is clamped and fixed by an annular stainless band 19.
The stainless steel band 19 is the fixing means of the present invention, and is the circumferential groove 2 formed on the outer peripheral surface of the rear end portion of the inner tubular portion 12.
It is set to 0. The circumferential groove 20 may not be provided.
【0018】外側筒部13は、本発明の第2筒部であっ
て、内側筒部12の外周側に中空部15を介して設けら
れ、マンホール1の取付孔3の内周面に対向する外周面
に帯状体8を巻き付けるための周溝21が形成されてい
る。外側筒部13は、接着剤(例えばブチルゴム製接着
剤)23を用いてマンホール1の取付孔3の内周に接着
されている。なお、周溝21は設けなくても良い。The outer cylindrical portion 13 is the second cylindrical portion of the present invention, is provided on the outer peripheral side of the inner cylindrical portion 12 via the hollow portion 15, and faces the inner peripheral surface of the mounting hole 3 of the manhole 1. A circumferential groove 21 for winding the strip 8 is formed on the outer peripheral surface. The outer cylindrical portion 13 is bonded to the inner circumference of the mounting hole 3 of the manhole 1 by using an adhesive (for example, a butyl rubber adhesive) 23. The circumferential groove 21 may not be provided.
【0019】閉塞部14は、略円環形状に形成されてお
り、内側筒部12のマンホール1側端部(先端部)と外
側筒部13のマンホール1側端部(先端部)とを環状に
連結することにより、マンホール1の内部空間22と二
重筒状本体7の中空部15との間を塞いでいる。The closing portion 14 is formed in a substantially annular shape, and an end portion (tip portion) of the inner tubular portion 12 on the manhole 1 side and an end portion (tip portion) of the outer tubular portion 13 on the manhole 1 side are ring-shaped. The space between the inner space 22 of the manhole 1 and the hollow portion 15 of the double cylindrical main body 7 is closed by connecting to the.
【0020】中空部15は、円筒状に形成されており、
内側筒部12と外側筒部13との相対変位をそれぞれ他
方の筒部に伝えないようにするために形成され、奥側に
入るにしたがって内側筒部12と外側筒部13との間隔
(例えば10mm)を徐々に拡げる楔形状のスペーサー5
が挿入されている。The hollow portion 15 is formed in a cylindrical shape,
It is formed so as not to transmit the relative displacement between the inner tubular portion 12 and the outer tubular portion 13 to the other tubular portion, and the distance between the inner tubular portion 12 and the outer tubular portion 13 (for example, as it goes into the back side). Wedge-shaped spacer 5 that gradually expands 10 mm)
Has been inserted.
【0021】このスペーサー5は、本発明の挿入物であ
って、図2および図4に示したように、中空部15内に
差し込まれる円筒状部31、およびこの円筒状部31の
後端部に鍔状部32を有している。また、円筒状部31
の外周には、後端部から先端部に向かって外径が漸減す
るテーパー状部33が形成されている。このテーパー状
部33には、二重筒状本体7の外側筒部13の内周面に
当接する複数個の突起部34が形成されている。これら
の突起部34は、本発明の抜け止め部であって、テーパ
ー状部33に周設され、スペーサー5を二重筒状本体7
内に挿入した際にスペーサー5が抜け難くするためのも
のである。The spacer 5 is the insert of the present invention, and as shown in FIGS. 2 and 4, the cylindrical portion 31 inserted into the hollow portion 15 and the rear end portion of the cylindrical portion 31. It has a collar-shaped portion 32. In addition, the cylindrical portion 31
A taper-shaped portion 33 is formed on the outer periphery of the tapered portion 33, the outer diameter of which gradually decreases from the rear end portion toward the front end portion. The tapered portion 33 is formed with a plurality of protrusions 34 that come into contact with the inner peripheral surface of the outer tubular portion 13 of the double tubular main body 7. These protrusions 34 are the retaining portions of the present invention, and are provided around the tapered portion 33, and the spacer 5 is attached to the double cylindrical main body 7.
This is for making it difficult for the spacer 5 to come off when inserted into the inside.
【0022】帯状体8は、本発明の水膨張性ゴムであっ
て、二重筒状本体7の外側筒部13の周溝21に樹脂製
の接着剤等により貼り合わされ、水を含むと体積膨張す
る水膨張性ゴムである。Oリング9は、本発明のシール
部材であって、二重筒状本体7のフランジ部11の嵌合
溝16内に嵌め合わされている。Oリング9は、水を含
むと体積膨張する水膨張性ゴムであって、二重筒状本体
7のフランジ部11とマンホール1の側壁2の壁面との
間の止水を行う。The strip 8 is the water-expandable rubber of the present invention, and is bonded to the circumferential groove 21 of the outer tubular portion 13 of the double tubular main body 7 by a resin adhesive or the like, and contains water to increase the volume. It is a water-swellable rubber that expands. The O-ring 9 is the seal member of the present invention, and is fitted in the fitting groove 16 of the flange portion 11 of the double-tube body 7. The O-ring 9 is a water-expandable rubber that expands in volume when it contains water, and serves to stop water between the flange portion 11 of the double cylindrical main body 7 and the wall surface of the side wall 2 of the manhole 1.
【0023】〔実施例の作用〕つぎに、マンホール1へ
のゴムジョイント4と下水本管6の取付方法を図1ない
し図5に基づいて簡単に説明する。[Operation of Embodiment] Next, a method of attaching the rubber joint 4 and the sewer main pipe 6 to the manhole 1 will be briefly described with reference to FIGS. 1 to 5.
【0024】先ず、マンホール1の側壁2に形成された
取付孔3内にゴムジョイント4を差し込む。次に、図5
に示したように、楔形状のスペーサー5をゴムジョイン
ト4の中空部15内にハンマ等で打ち込む。そこで、ス
ペーサー5の楔作用が発揮され、SBR製の二重筒状本
体7の外側筒部13の外周面がマンホール1の取付孔3
の内周面に液密的に密着して、外側筒部13と取付孔3
との間に帯状体8が挟み込まれる。また、ゴムジョイン
ト4の内側筒部12の外周と外側筒部13の内周との隙
間は20mm程度離れている。First, the rubber joint 4 is inserted into the mounting hole 3 formed in the side wall 2 of the manhole 1. Next, FIG.
As shown in, the wedge-shaped spacer 5 is driven into the hollow portion 15 of the rubber joint 4 with a hammer or the like. Therefore, the wedge action of the spacer 5 is exerted, and the outer peripheral surface of the outer tubular portion 13 of the SBR double tubular main body 7 is attached to the mounting hole 3 of the manhole 1.
Liquid-tightly adheres to the inner peripheral surface of the outer cylindrical portion 13 and the mounting hole 3
The strip 8 is sandwiched between and. Further, the gap between the outer circumference of the inner tubular portion 12 of the rubber joint 4 and the inner circumference of the outer tubular portion 13 is separated by about 20 mm.
【0025】次に、下水本管6の挿入部61をゴムジョ
イント4の内側筒部12内に差し込み、土嚢等を積んで
下水本管6の高さ調整を行う。また、マンホール1の取
付孔3に対して下水本管6の長手方向が上下方向または
水平方向所定の角度(例えば1°〜20°)だけ傾くよ
うに下水本管6を取り付けても良い。Next, the insertion portion 61 of the main sewer pipe 6 is inserted into the inner cylindrical portion 12 of the rubber joint 4, and sandbags or the like are stacked to adjust the height of the main sewer pipe 6. Further, the main sewer pipe 6 may be mounted such that the longitudinal direction of the main sewer pipe 6 is inclined with respect to the mounting hole 3 of the manhole 1 by a predetermined angle in the vertical direction or the horizontal direction (for example, 1 ° to 20 °).
【0026】このとき、マンホール1の取付孔3の内径
寸法が統一規格よりずれていても、さらに、スペーサー
5のテーパー状部33がゴムジョイント4の外側筒部1
3をマンホール1の取付孔3の内周面に押圧するように
押し広げて強固に型状保持する。At this time, even if the inner diameter of the mounting hole 3 of the manhole 1 is deviated from the unified standard, the tapered portion 33 of the spacer 5 is further provided with the outer cylindrical portion 1 of the rubber joint 4.
3 is pushed and expanded so as to be pressed against the inner peripheral surface of the mounting hole 3 of the manhole 1, and the shape is firmly held.
【0027】この結果、ゴムジョイント4の下方側の内
側筒部12と外側筒部13との間隔が弾性変形により拡
がり、マンホール1の取付孔3の内周にゴムジョイント
4の外側筒部13の外周が強固に密着することにより、
マンホール1の取付孔3の内周とゴムジョイント4の外
側筒部13の外周との液密性が保たれる。As a result, the distance between the inner tubular portion 12 and the outer tubular portion 13 on the lower side of the rubber joint 4 is expanded by elastic deformation, and the outer tubular portion 13 of the rubber joint 4 is formed on the inner periphery of the mounting hole 3 of the manhole 1. By firmly adhering the outer circumference,
Liquid tightness between the inner periphery of the mounting hole 3 of the manhole 1 and the outer periphery of the outer cylindrical portion 13 of the rubber joint 4 is maintained.
【0028】最後に、図1および図2に示したように、
ステンレスバンド19を締め付けることによって、ゴム
ジョイント4の内側筒部12を下水本管6の挿入部61
の外周に液密的に密着させることにより、下水本管6の
挿入部61がマンホール1の取付孔3内に取り付けられ
る。Finally, as shown in FIGS. 1 and 2,
By tightening the stainless steel band 19, the inner cylindrical portion 12 of the rubber joint 4 is inserted into the insertion portion 61 of the sewer main pipe 6.
The insertion portion 61 of the sewage main pipe 6 is mounted in the mounting hole 3 of the manhole 1 by making liquid-tight contact with the outer periphery of the.
【0029】〔実施例の効果〕以上のように、この実施
例では、スペーサー5にテーパー状部33が形成されて
いるので、そのスペーサー5が中空部15内に差し込ま
れることによりゴムジョイント4の外側筒部13が外周
側に弾性変形することにより、マンホール1の取付孔3
の内径寸法の違いを吸収することができる。これによ
り、マンホール1の取付孔3の内径寸法が異なっていて
も、すなわち、取付孔3を削孔するカッターの刃が新品
のときは取付孔の内径が大きくなったり、刃が古くなる
と取付孔の内径が小さくなったりしても、統一規格品と
された下水本管用接続継手10(ゴムジョイント4およ
びスペーサー5)によって、マンホール1の取付孔3の
内周に下水本管6の挿入部61を確実に取り付けること
ができる。[Effects of Embodiment] As described above, in this embodiment, since the tapered portion 33 is formed in the spacer 5, the spacer 5 is inserted into the hollow portion 15 so that the rubber joint 4 The outer cylindrical portion 13 is elastically deformed to the outer peripheral side, so that the mounting hole 3 of the manhole 1 is
It is possible to absorb the difference in inner diameter of the. As a result, even if the inner diameter of the mounting hole 3 of the manhole 1 is different, that is, when the blade of the cutter that drills the mounting hole 3 is new, the inner diameter of the mounting hole becomes large, or when the blade becomes old, the mounting hole becomes large. Even if the inner diameter of the sewage pipe becomes small, the connection part 10 (rubber joint 4 and spacer 5) for the sewage main pipe, which is a standardized product, is provided on the inner periphery of the mounting hole 3 of the manhole 1 for inserting the sewage main pipe 6. Can be securely attached.
【0030】また、この実施例では、下水本管6を埋設
した後に、地盤沈下や地震等の地殻変動に基づく大きな
外力負荷に伴って、マンホール1と下水本管6の挿入部
61とが相対変位した場合でも、内側筒部12、外側筒
部13および閉塞部14を有する略U字状のゴムジョイ
ント4の弾性変形によってマンホール1と下水本管6の
端部との相対変位に追従する。Further, in this embodiment, after the sewage main 6 is buried, the manhole 1 and the insertion part 61 of the sewage main 6 are moved relative to each other due to a large external force load due to crustal deformation such as ground subsidence or an earthquake. Even when it is displaced, the relative displacement between the manhole 1 and the end of the sewer main 6 is followed by the elastic deformation of the substantially U-shaped rubber joint 4 having the inner tubular portion 12, the outer tubular portion 13, and the closing portion 14.
【0031】そして、マンホール1の取付孔3と下水本
管6の挿入部61とが同心的に接続しなくても、下水本
管6の接続位置に弾性変形によってゴムジョイント4が
追従するため、ステンレスバンド19、スペーサー5お
よび接着剤17を用いてマンホール1の取付孔3に下水
本管6の挿入部61とゴムジョイント4を取り付けるこ
とができる。Even if the mounting hole 3 of the manhole 1 and the insertion portion 61 of the main sewer pipe 6 are not connected concentrically, the rubber joint 4 follows the connecting position of the main sewer pipe 6 by elastic deformation. The insertion part 61 of the sewer main pipe 6 and the rubber joint 4 can be attached to the attachment hole 3 of the manhole 1 by using the stainless band 19, the spacer 5 and the adhesive 17.
【0032】したがって、マンホール1の取付孔3の内
周とゴムジョイント4の外側筒部13の外周との間の隙
間の発生、およびゴムジョイント4の内側筒部12の内
周と下水本管6の挿入部61の外周との間の隙間の発生
を防止することができる。これにより、マンホール1の
取付孔3の内周と下水本管6の挿入部61の外周との水
密性が保たれるので、下水本管6の挿入部61の外周や
マンホール1の取付孔3の内周からのマンホール1の内
部への地下水等の不明水の流入を防止することができ
る。Therefore, a gap is generated between the inner periphery of the mounting hole 3 of the manhole 1 and the outer periphery of the outer cylindrical portion 13 of the rubber joint 4, and the inner periphery of the inner cylindrical portion 12 of the rubber joint 4 and the sewer main pipe 6. It is possible to prevent the formation of a gap between the outer periphery of the insertion portion 61 and the outer periphery of the insertion portion 61. This maintains the watertightness between the inner periphery of the mounting hole 3 of the manhole 1 and the outer periphery of the insertion portion 61 of the sewer main pipe 6, so that the outer periphery of the insertion portion 61 of the sewer main pipe 6 and the mounting hole 3 of the manhole 1 are maintained. It is possible to prevent the inflow of unknown water such as groundwater into the manhole 1 from the inner circumference of the.
【0033】〔変形例〕本実施例では、固定手段として
ステンレスバンド19による締付け固定を用いたが、固
定手段として接着剤等による固定を用いても良い。[Modification] In this embodiment, the fastening means is the fastening by the stainless steel band 19, but the fastening means may be fixed by an adhesive or the like.
【図1】本発明にかかるマンホールと下水本管の接続構
造を示した断面図である。FIG. 1 is a cross-sectional view showing a connection structure between a manhole and a sewer main according to the present invention.
【図2】本発明にかかるゴムジョイントとスペーサーと
を示した正面図である。FIG. 2 is a front view showing a rubber joint and a spacer according to the present invention.
【図3】本発明にかかるゴムジョイントを示した断面図
である。FIG. 3 is a sectional view showing a rubber joint according to the present invention.
【図4】本発明にかかるスペーサーを示した斜視図であ
る。FIG. 4 is a perspective view showing a spacer according to the present invention.
【図5】マンホールへの取付管の取付工程を示した断面
図である。FIG. 5 is a cross-sectional view showing a process of attaching the attachment pipe to the manhole.
1 マンホール(コンクリート構造物) 2 側壁 3 取付孔 4 ゴムジョイント(弾性シール部材) 5 スペーサー(挿入物) 6 下水本管(取付管) 7 二重筒状本体 8 帯状体(水膨張性ゴム) 9 Oリング(シール材) 10 下水本管用接続継手(取付管用接続継手) 11 フランジ部 12 内側筒部(第1筒部) 13 外側筒部(第2筒部) 14 閉塞部 19 ステンレスバンド(固定手段) 33 テーパー状部 34 突起部(抜け止め部) 61 挿入部 1 Manhole (Concrete Structure) 2 Sidewall 3 Mounting Hole 4 Rubber Joint (Elastic Seal Member) 5 Spacer (Insert) 6 Sewage Main Pipe (Mounting Pipe) 7 Double Cylindrical Body 8 Band (Water-Expandable Rubber) 9 O-ring (sealing material) 10 Sewage main pipe connection joint (mounting pipe connection joint) 11 Flange portion 12 Inner tubular portion (first tubular portion) 13 Outer tubular portion (second tubular portion) 14 Closure portion 19 Stainless band (fixing means) ) 33 taper-shaped part 34 projection part (prevention part) 61 insertion part
─────────────────────────────────────────────────────
─────────────────────────────────────────────────── ───
【手続補正書】[Procedure amendment]
【提出日】平成7年4月10日[Submission date] April 10, 1995
【手続補正1】[Procedure Amendment 1]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】請求項2[Name of item to be corrected] Claim 2
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【手続補正2】[Procedure Amendment 2]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】0007[Correction target item name] 0007
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【0007】請求項2に記載の発明は、請求項1に記載
の取付管の接続継手に加えて、前記挿入物は、前記第2
筒部の内周に当接する外周面に抜け止め部を有すること
を特徴とする。請求項3に記載の発明は、請求項1また
は請求項2に記載の取付管の接続継手に加えて、前記弾
性シール部材は、前記第2筒部の先端に外周側に鍔状に
拡がり、前記コンクリート構造物の外壁に対向するフラ
ンジ部を有し、前記フランジ部と前記コンクリート構造
物の外壁との間には、シール材が装着されていることを
特徴とする。According to a second aspect of the present invention, in addition to the connecting joint of the mounting pipe according to the first aspect, the insert is the second pipe.
It is characterized in that it has a retaining portion on the outer peripheral surface that abuts on the inner periphery of the tubular portion. According to a third aspect of the present invention, in addition to the connection joint of the mounting pipe according to the first or second aspect, the elastic seal member spreads like a flange on the outer peripheral side at the tip of the second tubular portion, It has a flange part facing the outer wall of the concrete structure, and a sealant is attached between the flange part and the outer wall of the concrete structure.
【手続補正3】[Procedure 3]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】0012[Correction target item name] 0012
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【0012】請求項2に記載の発明によれば、挿入物の
第2筒部の内周に当接する外周面に設けた抜け止め部に
より弾性シール部材の第1筒部と第2筒部との間からの
挿入物の脱落を防止することができる。請求項3に記載
の発明によれば、弾性シール部材のフランジ部とコンク
リート構造物の外壁との間にシール材が装着されている
ので、弾性シール部材の第2筒部の外周とコンクリート
構造物の取付孔の内周からのコンクリート構造物内への
不明水の浸入を防止することができる。According to the second aspect of the invention, the first and second cylindrical portions of the elastic seal member are provided by the retaining portions provided on the outer peripheral surface of the insert which contacts the inner periphery of the second cylindrical portion. It is possible to prevent the insert from falling out of the space. According to the invention described in claim 3, the flange portion of the elastic sealing member and a sealing material between the outer wall of the concrete structure that <br/> that is mounted, the second cylindrical portion of the elastic sealing member It is possible to prevent the intrusion of unknown water into the concrete structure from the outer circumference of the concrete structure and the inner circumference of the mounting hole of the concrete structure.
Claims (3)
構造物と、 (b)このコンクリート構造物の取付孔内に挿入される
挿入部を有する取付管と、 (c)この取付管の挿入部の外周に液密的に密着した第
1筒部、前記コンクリート構造物の取付孔の内周に液密
的に密着した第2筒部、および前記第1筒部の一端側と
前記第2筒部の一端側とを閉塞する環状の閉塞部を有す
る弾性シール部材と、 (d)前記取付管の挿入部の外周に前記第1筒部を固定
する固定手段と、 (e)前記コンクリート構造物の取付孔の内周と前記第
2筒部の外周との間に装着された水膨張性ゴムと、 (f)前記弾性シール部材内に挿入され、前記第1筒部
と前記第2筒部との空隙を拡げると共に、先端部から後
端部に向かって外径が徐々に大きくなる楔形状の挿入物
とを備えた取付管の接続継手。1. A concrete structure having (a) a mounting hole in a side wall, (b) a mounting pipe having an insertion portion inserted into the mounting hole of the concrete structure, and (c) an insertion of the mounting pipe. A first cylinder part that is liquid-tightly adhered to the outer periphery of the first part, a second cylinder part that is liquid-tightly adhered to the inner periphery of the mounting hole of the concrete structure, and one end side of the first cylinder part and the second part An elastic seal member having an annular closing portion for closing one end side of the tubular portion; (d) a fixing means for fixing the first tubular portion to the outer periphery of the insertion portion of the mounting pipe; (e) the concrete structure A water-expandable rubber mounted between the inner periphery of the object mounting hole and the outer periphery of the second tubular portion, and (f) the first tubular portion and the second tubular portion inserted into the elastic seal member. The wedge-shaped insertion that increases the outer diameter gradually from the front end to the rear end while expanding the space between Connection fitting attachment tube with an object.
て、 前記挿入物は、前記第1筒部の内周に当接する外周面に
抜け止め部を有することを特徴とする取付管の接続継
手。2. The connection joint for a mounting pipe according to claim 1, wherein the insert has a retaining portion on an outer peripheral surface that abuts an inner periphery of the first tubular portion. Connection fittings.
接続継手において、 前記弾性シール部材は、前記第2筒部の先端に外周側に
鍔状に拡がり、前記コンクリート構造物の外壁に対向す
るフランジ部を有し、 前記フランジ部と前記コンクリート構造物の外壁との間
には、シール材が装着されていることを特徴とする取付
管の接続継手。3. The connection joint for a mounting pipe according to claim 1, wherein the elastic seal member spreads like a flange on the outer peripheral side at the tip of the second tubular portion, and the outer wall of the concrete structure. A connecting member for a mounting pipe, characterized in that a sealing material is mounted between the flange portion and an outer wall of the concrete structure.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7080919A JP2981144B2 (en) | 1995-04-06 | 1995-04-06 | Connection fitting for mounting pipe |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7080919A JP2981144B2 (en) | 1995-04-06 | 1995-04-06 | Connection fitting for mounting pipe |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH08277538A true JPH08277538A (en) | 1996-10-22 |
JP2981144B2 JP2981144B2 (en) | 1999-11-22 |
Family
ID=13731829
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7080919A Expired - Fee Related JP2981144B2 (en) | 1995-04-06 | 1995-04-06 | Connection fitting for mounting pipe |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2981144B2 (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001152471A (en) * | 1999-11-25 | 2001-06-05 | Kana Flex Corporation Kk | Wiring box embedded in underground |
KR100337694B1 (en) * | 1999-12-21 | 2002-05-22 | 안승현 | Joint for fixing an arm to a post |
JP2007024108A (en) * | 2005-07-13 | 2007-02-01 | Yoshii Kensetsu Kk | Branch pipe connection device |
JP2007312458A (en) * | 2006-05-16 | 2007-11-29 | Sanritsu Giken Kk | Watertight joint |
KR100880719B1 (en) * | 2008-10-16 | 2009-02-04 | 주식회사 세종전력 | Fixing structure street lamp prop in concrete base |
JP2009052391A (en) * | 2007-08-02 | 2009-03-12 | Sanritsu:Kk | Unfloatable manhole structure |
KR100905889B1 (en) * | 2008-04-18 | 2009-07-03 | 박지운 | Foundation structure for installing poles |
-
1995
- 1995-04-06 JP JP7080919A patent/JP2981144B2/en not_active Expired - Fee Related
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001152471A (en) * | 1999-11-25 | 2001-06-05 | Kana Flex Corporation Kk | Wiring box embedded in underground |
KR100337694B1 (en) * | 1999-12-21 | 2002-05-22 | 안승현 | Joint for fixing an arm to a post |
JP2007024108A (en) * | 2005-07-13 | 2007-02-01 | Yoshii Kensetsu Kk | Branch pipe connection device |
JP4659542B2 (en) * | 2005-07-13 | 2011-03-30 | 裕之 太田 | Branch pipe connection device |
JP2007312458A (en) * | 2006-05-16 | 2007-11-29 | Sanritsu Giken Kk | Watertight joint |
JP2009052391A (en) * | 2007-08-02 | 2009-03-12 | Sanritsu:Kk | Unfloatable manhole structure |
KR100905889B1 (en) * | 2008-04-18 | 2009-07-03 | 박지운 | Foundation structure for installing poles |
KR100880719B1 (en) * | 2008-10-16 | 2009-02-04 | 주식회사 세종전력 | Fixing structure street lamp prop in concrete base |
Also Published As
Publication number | Publication date |
---|---|
JP2981144B2 (en) | 1999-11-22 |
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