JPH02199393A - Pipe joint structure for sewer pipe - Google Patents
Pipe joint structure for sewer pipeInfo
- Publication number
- JPH02199393A JPH02199393A JP1864889A JP1864889A JPH02199393A JP H02199393 A JPH02199393 A JP H02199393A JP 1864889 A JP1864889 A JP 1864889A JP 1864889 A JP1864889 A JP 1864889A JP H02199393 A JPH02199393 A JP H02199393A
- Authority
- JP
- Japan
- Prior art keywords
- pipe
- socket
- ring packing
- packing
- groove
- 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
- 238000012856 packing Methods 0.000 claims abstract description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 238000003780 insertion Methods 0.000 claims description 4
- 230000037431 insertion Effects 0.000 claims description 4
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
Landscapes
- Joints With Sleeves (AREA)
Abstract
Description
【発明の詳細な説明】 産業上の利用分野 本発明は、下水管の管継手構造に関する。[Detailed description of the invention] Industrial applications The present invention relates to a pipe joint structure for a sewer pipe.
従来の技術
従来の管継手の構造としては、たとえば第5図〜第6図
に示すようなものがあり、一方の管1の端部に形成され
た受口2に、他方の管3の端部に形成された挿口4を挿
入して両方の管1,3が接続されている。そして、受口
2の内周面には環状の溝部5が形成されており、溝部5
の底面には半径方向に突出する環状の突起部6が形成さ
れている。また、溝部5にはリングパツキン7が配置さ
れており、このリングパツキン7は突起部6により管軸
心方向において係止されている。さらに、受口開口側に
位置する溝部5の内側面8が管軸心に対して直角に形成
され、この内側面8がリングパツキン7の頭部9を受は
止めている。また、リングパツキン7は胴部lOで受口
2と挿口4の間を止水している。2. Description of the Related Art A conventional pipe joint has a structure as shown in FIGS. Both tubes 1 and 3 are connected by inserting an inlet 4 formed in the section. An annular groove 5 is formed on the inner peripheral surface of the socket 2.
An annular protrusion 6 that protrudes in the radial direction is formed on the bottom surface. Further, a ring packing 7 is disposed in the groove 5, and the ring packing 7 is locked by the protrusion 6 in the tube axis direction. Further, an inner surface 8 of the groove 5 located on the socket opening side is formed perpendicular to the tube axis, and this inner surface 8 receives the head 9 of the ring packing 7. Further, the ring gasket 7 shuts off water between the socket 2 and the socket 4 at the body portion 1O.
発明が解決しようとする課題
しかし、上記した従来の管継手構造においては、管内部
から加えられる内圧に対し、頭部9を介して溝部5の内
側面8に受は止められたリングパツキン7の胴部lOが
管半径方向に押し広げられて良好な水密性を維持するこ
とができるが、管外部から加えられる外圧に対しては、
リングパッキン7の胴部10を受は止める部材が存在し
ないために、胴部10が管軸心方向に押し広げられ、挿
口4に対するリングパツキン7の押圧力が弱められて水
密性が維持できなくなる問題があった。特に、自然流下
系の下水管においては、管内を流れる水流体の圧力があ
まり高くなく、管内外の圧力差が小さいので外圧の影響
を受けやすものとなり、内外の圧力に対し、如何にして
水密性を維持するかが課題とされていた。Problems to be Solved by the Invention However, in the above-described conventional pipe joint structure, the ring packing 7, which is held against the inner surface 8 of the groove 5 via the head 9, responds to the internal pressure applied from inside the pipe. The body IO can be expanded in the radial direction of the tube to maintain good watertightness, but against external pressure applied from outside the tube,
Since there is no member to receive and stop the body 10 of the ring packing 7, the body 10 is pushed out in the direction of the tube axis, and the pressing force of the ring packing 7 against the insertion port 4 is weakened, making it impossible to maintain watertightness. There was a problem that disappeared. In particular, in gravity flow sewer pipes, the pressure of the water fluid flowing inside the pipe is not very high, and the pressure difference between the inside and outside of the pipe is small, so it is easily affected by external pressure. The issue was how to maintain their sexuality.
本発明は上記課題を解決するもので、内外の圧力に対し
て水密性を維持することができる下水管の管継手構造を
提供することを目的とする。The present invention solves the above problems, and aims to provide a pipe joint structure for a sewer pipe that can maintain watertightness against internal and external pressures.
課題を解決するための手段
上記課題を解決するために、本発明は、一方の管の端部
に形成された受口と、他方の管の端部に形成されて前記
受口内に挿入された挿口と、前記受口の内周面に形成さ
れた環状の溝部に配置されて受口と挿口の間を止水する
リングパツキンとを備えた管継手構造において、前記溝
部の管軸心方向の前後に位置する両側の内側面、および
この内側面に対応する前記リングパツキンの外側面を管
軸心方向に対して直角に形成した構成としたものである
。Means for Solving the Problems In order to solve the above problems, the present invention provides a socket formed at the end of one pipe, and a socket formed at the end of the other pipe and inserted into the socket. In a pipe joint structure comprising a socket and a ring gasket disposed in an annular groove formed on the inner circumferential surface of the socket to shut off water between the socket and the socket, the pipe axis of the groove is The inner surfaces on both sides located at the front and back of the tube and the outer surface of the ring packing corresponding to the inner surfaces are formed perpendicular to the tube axis direction.
作用
上記した構成により、管内部から加えられる内圧に対し
、リングパツキンが溝部の受口開口側の内側面に受は止
められて管半径方向に押し広げられ、良好な水密性が維
持される。そして、管外部から加えられる外圧に対し、
リングパツキンが溝部の受口奥端側の内側面に受は止め
られて管軸心方向への変形を抑制され、良好な水密性が
維持される。Operation With the above-described structure, the ring packing is held against the inner surface of the groove on the socket opening side and is pushed out in the radial direction of the pipe in response to internal pressure applied from inside the pipe, thereby maintaining good watertightness. In response to external pressure applied from outside the pipe,
The ring packing is fixed on the inner surface of the groove on the back end side of the socket, suppressing deformation in the tube axis direction and maintaining good watertightness.
実施例
以下、本発明の一実施例を図面に基づいて説明する。第
1図〜第4図において、一方の管11の端部には受口1
2が形成されており、他方の管13の端部には受口12
の内部に挿入可能な挿口14が形成されている。そして
、受口12の内周面には環状の溝部15が形成されてお
り、この溝部15には受口12と挿口14の間を止水す
るリングパツキン16が配置されている。そして、溝部
15の管軸心方向の前後に位置する両側の内側面17.
18は管軸心方向に対して直角に形成されている。また
、リングパツキン18はゴム材よりなり、溝部15の内
側面17.18に対応する外側面19.20が管軸心方
向に対して直角に形成されるとともに、挿口14に対応
する内周面21が受口開口側から受口奥端側に向けて縮
径するように形成されている。さらに、リングパツキン
1Gの受口奥端側に位置する外側面20には断面が円弧
状のおう部22が形成されている。EXAMPLE Hereinafter, an example of the present invention will be described based on the drawings. 1 to 4, one end of the pipe 11 has a socket 1.
2 is formed, and a socket 12 is formed at the end of the other pipe 13.
A receptacle 14 that can be inserted into the inside of the receptacle is formed. An annular groove 15 is formed on the inner circumferential surface of the socket 12, and a ring gasket 16 is disposed in the groove 15 to shut off water between the socket 12 and the socket 14. Inner surfaces 17 on both sides of the groove 15 located at the front and back in the tube axis direction.
18 is formed perpendicular to the tube axis direction. The ring packing 18 is made of a rubber material, and an outer surface 19.20 corresponding to the inner surface 17.18 of the groove portion 15 is formed perpendicular to the tube axis direction, and an inner circumference corresponding to the insertion port 14 is formed. The surface 21 is formed to reduce in diameter from the socket opening side toward the back end side of the socket. Further, a cap portion 22 having an arcuate cross section is formed on the outer surface 20 of the ring packing 1G located at the rear end of the socket.
以下、上記構成における作用について説明する。The effects of the above configuration will be explained below.
管内部から加えられる内圧に対しては、リングパツキン
16が溝部15の受口開口側の内側面17に受は止めら
れるとともに、内圧をおう部22で受は止めて管半径方
向に押し広げられ、良好な水密性が維持される。そして
、管外部から加えられる外圧に対しては、リングパツキ
ン1Bが溝部15の受口奥端側の内側面18に受は止め
られ、管軸心方向において係止されるとともに管軸心方
向への変形を抑制され、良好な水密性が維持される。In response to the internal pressure applied from inside the pipe, the ring packing 16 is stopped by the inner surface 17 of the groove 15 on the socket opening side, and the receiving part 22 stops the internal pressure and is pushed out in the radial direction of the pipe. , good watertightness is maintained. In response to external pressure applied from outside the tube, the ring packing 1B is held against the inner surface 18 on the back end side of the socket of the groove portion 15, and is locked in the tube axis direction and moved in the tube axis direction. deformation is suppressed and good watertightness is maintained.
発明の効果
以上述べたように、本発明によれば、内外圧に対し、リ
ングパツキンが溝部の内側面に受は止められることによ
り、良好な水密性を維持することができる。Effects of the Invention As described above, according to the present invention, good watertightness can be maintained because the ring packing is received by the inner surface of the groove against internal and external pressure.
第1図は本発明の一実施例を示す全体構成図、第2図お
よび第3図は同実施例におけるリングパツキンの作動状
態図、第4図は同実施例におけるリングパツキンの断面
図、第5図は従来の管継手構造を示す全体構成図、第6
図は同実施例におけるリングパツキンの断面図である。
11、13・・・管、12・・・受口、14・・・挿口
、15・・・溝部、16・・・リングパツキン、17.
18・・・内側面、19.20・・・外側面、2I・・
・内周面、22・・・おう部。FIG. 1 is an overall configuration diagram showing one embodiment of the present invention, FIGS. 2 and 3 are operating state diagrams of a ring packing in the same embodiment, and FIG. 4 is a sectional view of the ring packing in the same embodiment. Figure 5 is an overall configuration diagram showing the conventional pipe joint structure, Figure 6
The figure is a sectional view of the ring packing in the same embodiment. 11, 13...Pipe, 12...Socket, 14...Socket, 15...Groove, 16...Ring packing, 17.
18...Inner surface, 19.20...Outer surface, 2I...
・Inner circumferential surface, 22... bulge.
Claims (1)
部に形成されて前記受口内に挿入された挿口と、前記受
口の内周面に形成された環状の溝部に配置されて受口と
挿口の間を止水するリングパッキンとを備えた管継手構
造において、前記溝部の管軸心方向の前後に位置する両
側の内側面、およびこの内側面に対応する前記リングパ
ッキンの外側面を管軸心方向に対して直角に形成したこ
とを特徴とする下水管の管継手構造。1. A socket formed at the end of one pipe, an insertion port formed at the end of the other pipe and inserted into the socket, and an annular socket formed on the inner peripheral surface of the socket. In a pipe joint structure equipped with a ring packing placed in a groove to shut off water between the socket and the insertion port, the inner surface on both sides of the groove located at the front and back in the direction of the tube axis, and the inner surface correspond to the inner surface. A pipe joint structure for a sewer pipe, characterized in that the outer surface of the ring packing is formed perpendicular to the pipe axis direction.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1864889A JPH02199393A (en) | 1989-01-26 | 1989-01-26 | Pipe joint structure for sewer pipe |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1864889A JPH02199393A (en) | 1989-01-26 | 1989-01-26 | Pipe joint structure for sewer pipe |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH02199393A true JPH02199393A (en) | 1990-08-07 |
Family
ID=11977438
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1864889A Pending JPH02199393A (en) | 1989-01-26 | 1989-01-26 | Pipe joint structure for sewer pipe |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH02199393A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008019926A (en) * | 2006-07-12 | 2008-01-31 | Furukawa Electric Co Ltd:The | Corrugated pipe with pipe joint and corrugated pipe unit with pipe joint |
JP2011220474A (en) * | 2010-04-13 | 2011-11-04 | Kubota Corp | Pipe joint and seal material for the same |
JP2011226523A (en) * | 2010-04-16 | 2011-11-10 | Cosmo Koki Co Ltd | Pipe joint |
-
1989
- 1989-01-26 JP JP1864889A patent/JPH02199393A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008019926A (en) * | 2006-07-12 | 2008-01-31 | Furukawa Electric Co Ltd:The | Corrugated pipe with pipe joint and corrugated pipe unit with pipe joint |
JP4609859B2 (en) * | 2006-07-12 | 2011-01-12 | 古河電気工業株式会社 | Corrugated pipe with pipe joint and corrugated pipe unit with pipe joint |
JP2011220474A (en) * | 2010-04-13 | 2011-11-04 | Kubota Corp | Pipe joint and seal material for the same |
JP2011226523A (en) * | 2010-04-16 | 2011-11-10 | Cosmo Koki Co Ltd | Pipe joint |
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