JPS582591Y2 - Composite pipe connection - Google Patents
Composite pipe connectionInfo
- Publication number
- JPS582591Y2 JPS582591Y2 JP13636778U JP13636778U JPS582591Y2 JP S582591 Y2 JPS582591 Y2 JP S582591Y2 JP 13636778 U JP13636778 U JP 13636778U JP 13636778 U JP13636778 U JP 13636778U JP S582591 Y2 JPS582591 Y2 JP S582591Y2
- Authority
- JP
- Japan
- Prior art keywords
- pipe
- composite pipe
- opening
- composite
- joint
- 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
Landscapes
- Joints With Sleeves (AREA)
- Laminated Bodies (AREA)
Description
【考案の詳細な説明】
本考案は鋼管の内面に発泡体層を介して被覆層が設けら
れてなる複合管の接続部に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a joint of a composite pipe in which a coating layer is provided on the inner surface of a steel pipe via a foam layer.
鋼管の内面に発泡体層を介して被覆層が設けられてなる
複合管を接続する場合、管端面の防食を図り、しかも接
続部からの液体もれを防止する必要がある。When connecting composite pipes in which a coating layer is provided on the inner surface of a steel pipe via a foam layer, it is necessary to protect the end faces of the pipes from corrosion and prevent liquid leakage from the joints.
本考案は、叙上の如き複合管の管端面の防食を図り、し
かも接続部からの液体もれを防止する複合管の接続部を
提供することを目的としてなされたものであつスその要
旨は、鋼管の内面に発泡体層を介して被覆層が設けられ
てなる複合管と管継手との接続部において、管継手の開
口部の奥部内周面に周方向に沿って段部が設けられ、該
段部の側面の中途に開口部側に突出する突条が周方向に
沿って設けられ、該開口部に前記複合管が挿入され、該
複合管の管端部の発泡体層に前記突条が挿入されてなる
複合管の接続部に存する。The purpose of the present invention is to provide a joint for a composite pipe that protects the end surface of the composite pipe from corrosion as described above and also prevents liquid from leaking from the joint. , at the connection between a composite pipe and a pipe fitting, in which a coating layer is provided on the inner surface of the steel pipe via a foam layer, a step is provided along the circumferential direction on the inner circumferential surface of the inner surface of the opening of the pipe fitting. , a protrusion protruding toward the opening is provided halfway along the side surface of the stepped portion along the circumferential direction, the composite pipe is inserted into the opening, and the foam layer at the end of the composite pipe is provided with a protrusion that protrudes toward the opening. It exists at the joint of a composite pipe into which a protrusion is inserted.
以下、本考案を図面の実施例により説明する。Hereinafter, the present invention will be explained with reference to embodiments of the drawings.
１は複合管であり、鋼管１１の内面にポリウレタン等の
発泡体層１２を介して合成樹脂等の被覆層１３が設けら
れたものである。Reference numeral 1 designates a composite pipe, in which a coating layer 13 made of synthetic resin or the like is provided on the inner surface of a steel pipe 11 with a foam layer 12 made of polyurethane or the like interposed therebetween.
鋼管１１の外表面は適宜亜鉛メッキ、防錆剤塗布等の防
食処理がほどこされている。The outer surface of the steel pipe 11 is appropriately subjected to anti-corrosion treatment such as galvanizing and coating with a rust preventive agent.
２は管継手であり、開口部の奥部内周面に周方向に沿っ
て段部２１が設けられ、該段部２１の側面の中途に開口
部側に突出する先端がとがった突条２２が周方向に沿っ
て設けられ、段部２１の開口部側は拡径された内周面を
有する受口部２３とさ札該受口部２３の開口端部外方に
フランジ２４が設けられている。Reference numeral 2 designates a pipe joint, in which a stepped portion 21 is provided along the circumferential direction on the inner circumferential surface of the deep part of the opening, and a protrusion 22 with a pointed tip that protrudes toward the opening is provided midway on the side surface of the stepped portion 21. A socket part 23 is provided along the circumferential direction, and the opening side of the stepped part 21 has an enlarged diameter inner peripheral surface, and a flange 24 is provided outside the opening end of the socket part 23. There is.
突条２２の内側面は同一径を有する平行面２２１とされ
、外側面は先端部から次第に拡径するテーパー面２２２
とさ札段部２１の側面は突条２２を境に外側面２１２が
内側面２１１よりも開口部側に出っ張っている。The inner surface of the protrusion 22 is a parallel surface 221 having the same diameter, and the outer surface is a tapered surface 222 whose diameter gradually increases from the tip.
On the side surface of the crest stepped portion 21, an outer surface 212 protrudes toward the opening side than an inner surface 211 with the protrusion 22 as a boundary.
３は環状バッキング、４は押環、５は締付具である。3 is an annular backing, 4 is a push ring, and 5 is a fastener.
管継手２のフランジ２４に環状弾性体３を介して押環４
を締付具５でゆるく締付けてセットし、その受口部２３
内に複合管１の管端部を入札管継手２の突条２２を複合
管１の管端部の発泡体層１２に突き刺し、さらに複合管
１を押し込んで、複合管１の鋼管１１の端面を管継手２
の段部２１の外側面２１２に突き当てて外方へ拡径させ
、複合管１の被覆層１３の端面を管継手２０段部２１の
内側面２１１に当接させ、フランジ２４と押環４とを締
付具５で締付けて、環状弾性体３を複合管１の外周面に
抑圧密着させる。A push ring 4 is attached to the flange 24 of the pipe joint 2 via the annular elastic body 3.
Loosely tighten it with the fastener 5, and set it in its socket 23.
pierce the end of the composite pipe 1 into the foam layer 12 of the pipe end of the composite pipe 1, and push the end of the composite pipe 1 into the foam layer 12 of the pipe fitting 2. The pipe fitting 2
The end surface of the coating layer 13 of the composite pipe 1 is brought into contact with the inner surface 211 of the stepped portion 21 of the pipe fitting 20, and the flange 24 and push ring 4 are tightened with a fastener 5 to press and tightly contact the annular elastic body 3 to the outer circumferential surface of the composite pipe 1.
かくして、複合管１と管継手２とが接続される（第１図
参照）。In this way, the composite pipe 1 and the pipe joint 2 are connected (see FIG. 1).
尚、管継手２０段部２１の側面が突条２２を境に外側面
２１２が内側面２１１よりも開口部側に出っ張る如くさ
れ、複合管１の鋼管１１の端面が段部２１の外側面２１
２に突き当てられて外方へ拡径されておれば、接続の際
、複合管１の被覆層１３の端面が段部２２の側面により
破損されることがなく好適である。In addition, the side surface of the stepped portion 21 of the pipe joint 20 is configured so that the outer surface 212 protrudes toward the opening side than the inner surface 211 with the protrusion 22 as a boundary, and the end surface of the steel pipe 11 of the composite pipe 1 extends beyond the outer surface 21 of the stepped portion 21.
It is preferable that the end face of the coating layer 13 of the composite pipe 1 is not damaged by the side surface of the step portion 22 when the composite pipe 1 is connected.
さらに第２図に示す如く、管継手２０段部２１の内側面
２１１と複合管１の被覆層１３との間に環状バッキング
６を入れるようにすると、シール効果が一層確実となる
。Further, as shown in FIG. 2, if an annular backing 6 is inserted between the inner surface 211 of the stepped portion 21 of the pipe joint 20 and the coating layer 13 of the composite pipe 1, the sealing effect will be further ensured.
叙上の如く、本考案複合管の接続部は、管継手の開口部
の奥部内周面に周方向に沿って設けられた段部の側面の
中途に開口部側に突出する突条が周方向に沿って設けら
れ、その突条が複合管の発泡体層に挿入されて接続され
ているので、管継手の突条に複合管の発泡体層を突きＷ
ＩＪｔという簡単な作業で、複合管の鋼管の端面の防食
及び接続部からの液体もれを確実に防止できる。As mentioned above, the connection part of the composite pipe of the present invention has a protrusion protruding toward the opening partway through the side surface of the stepped part provided along the circumferential direction on the inner circumferential surface of the deep part of the opening part of the pipe joint. Since the protrusions are inserted into the foam layer of the composite pipe and connected, the foam layer of the composite pipe is inserted into the protrusions of the pipe joint.
A simple operation called IJt can reliably prevent corrosion of the end faces of steel pipes of composite pipes and prevent liquid leakage from joints.
第１図は本考案の実施例を示す一部切欠き正面図、第２
図は本発明の別の実施例の要部を示す縦断面図である。
符号の説明、１・・・・・・複合管、２・・・・・管継
手、１１鋼管、１２・・・・・・発泡体層、１３・・・
・・・被覆層、２１・・・・・・段部、２２・・・・・
・突条、２１１・・・・・・内側面、２１２・・・・・
・外側面。Fig. 1 is a partially cutaway front view showing an embodiment of the present invention;
The figure is a longitudinal sectional view showing the main parts of another embodiment of the present invention. Explanation of symbols: 1...Composite pipe, 2...Pipe joint, 11 Steel pipe, 12...Foam layer, 13...
...Covering layer, 21...Step part, 22...
・Protrusion, 211...Inner surface, 212...
-Outer surface.
Claims (1)
複合管と管継手との接続部において、管継手の開口部の
奥部内周面に周方向に沿って段部が設けられ、該段部の
側面の中途に開口部側に突出する突条が周方向に沿って
設けられ、該開口部に前記複合管が挿入され、該複合管
の管端部の発泡体層に前記突条が挿入されてなる複合管
の接続部。In a joint between a composite pipe and a pipe fitting, in which a coating layer is provided on the inner surface of a steel pipe via a foam layer, a stepped portion is provided along the circumferential direction on the inner circumferential surface of the deep part of the opening of the pipe fitting, A protrusion protruding toward the opening is provided halfway along the side surface of the stepped portion along the circumferential direction, the composite pipe is inserted into the opening, and the protrusion is formed on the foam layer at the end of the composite pipe. A joint of a composite pipe in which a strip is inserted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13636778U JPS582591Y2 (en) | 1978-10-04 | 1978-10-04 | Composite pipe connection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13636778U JPS582591Y2 (en) | 1978-10-04 | 1978-10-04 | Composite pipe connection |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5552333U JPS5552333U (en) | 1980-04-07 |
| JPS582591Y2 true JPS582591Y2 (en) | 1983-01-17 |
Family
ID=29107528
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13636778U Expired JPS582591Y2 (en) | 1978-10-04 | 1978-10-04 | Composite pipe connection |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS582591Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7068693B2 (en) * | 2018-04-28 | 2022-05-17 | 株式会社フジキン | Pipe fittings and their manufacturing methods |
-
1978
- 1978-10-04 JP JP13636778U patent/JPS582591Y2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5552333U (en) | 1980-04-07 |
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