JP3140920U - Plastic pipe fittings - Google Patents

Plastic pipe fittings Download PDF

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Publication number
JP3140920U
JP3140920U JP2008000487U JP2008000487U JP3140920U JP 3140920 U JP3140920 U JP 3140920U JP 2008000487 U JP2008000487 U JP 2008000487U JP 2008000487 U JP2008000487 U JP 2008000487U JP 3140920 U JP3140920 U JP 3140920U
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Prior art keywords
plastic pipe
ring
joint
cylindrical packing
plastic
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Japanese (ja)
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勝明 葛西
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株式会社サカイ技研
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Abstract

【課題】従来の一般的な通気パイプ、及び通気弁に関わるプラスチックパイプ用継ぎ手において、着脱施工する際作業性が悪く、比較的狭い場所での作業で過剰な力をでパイプ挿入に伴いプラスチックパイプの亀裂、破損が生じるという課題を解決する。
【解決手段】プラスチックパイプ外径よりも大きな内径を持つ筒状パッキン6と締め付けリング7によって接続する方法を有する構造とし、スリット及び凸部を有する筒状パッキン6、リング状突起、リング状凹みを設けた継ぎ手本体8により、締め付けリング7を締め付けるに従い、筒状パッキン上部と筒状パッキン下部の2点がプラスチックパイプの軸方向にせり上がる作用でプラスチックパイプを上下2点のみで固定させることが可能となった。
【選択図】図1
[PROBLEMS] A conventional plastic pipe joint for plastic pipes related to a vent valve has poor workability when attaching and detaching, and a plastic pipe is inserted with excessive force by working in a relatively small place. Solves the problem of cracking and breakage.
A structure having a method of connecting a cylindrical packing 6 having an inner diameter larger than an outer diameter of a plastic pipe by a tightening ring 7, and forming a cylindrical packing 6 having a slit and a protrusion, a ring-shaped protrusion, and a ring-shaped recess. With the joint body 8 provided, as the fastening ring 7 is tightened, the plastic pipe can be fixed at only two points, upper and lower, with the action of the upper part of the cylindrical packing and the lower part of the cylindrical packing rising in the axial direction of the plastic pipe. It became.
[Selection] Figure 1

Description

この考案は、プラスチックパイプ用継ぎ手の機能・形状に関するものである。This invention relates to the function and shape of a joint for plastic pipes.

従来の一般的な通気パイプ、および通気弁に関わるプラスチックパイプ用継ぎ手において、着脱施工する際、気密性の問題上、プラスチックパイプ1の外径と従来の継ぎ手本体3に取り付けられたパッキン4の内径の径数値が近いため、着脱においてとりわけ比較的狭い場所での作業に際し、過剰な力を有したパイプ挿入に伴いプラスチックパイプの亀裂、破損が生じるという課題が生じていた。When connecting and disconnecting a plastic pipe joint related to a conventional general ventilation pipe and a ventilation valve, the outer diameter of the plastic pipe 1 and the inner diameter of the packing 4 attached to the conventional joint body 3 due to airtightness problems. Since the diameter values of these are close, there has been a problem that the plastic pipe cracks and breaks due to the insertion of the pipe having an excessive force, especially when working in a relatively narrow place for attachment and detachment.

従来のプラスチックパイプ接続における作業の困難性とそれに伴うプラスチックパイプの破損の問題を解決する目的で、本考案はプラスチックパイプ接続の作業性の向上を図ると同時にプラスチックパイプの亀裂、破損を防ぐことを課題とする。In order to solve the problems of conventional plastic pipe connections and the associated problems of plastic pipe breakage, the present invention aims to improve the workability of plastic pipe connections and at the same time prevent cracking and breakage of plastic pipes. Let it be an issue.

以上の課題を解決するために、プラスチックパイプ1を、継ぎ手本体8上部開口部5から挿入し、プラスチックパイプ1外径よりも大きな内径を持つ軟質系素材による筒状パッキン6と締め付けリング7によって接続する方法を有する構造とし、片面小口にスリット9及び外周にリング状凸部10を有する軟質系素材による筒状パッキン6、及び台形断面のリング状突起11、リング状凹み12を設けた継ぎ手本体8を有するプラスチックパイプ用継ぎ手とした。In order to solve the above problems, the plastic pipe 1 is inserted from the upper opening 5 of the joint body 8 and connected by a cylindrical packing 6 made of a soft material having an inner diameter larger than the outer diameter of the plastic pipe 1 and a tightening ring 7. And a joint body 8 provided with a cylindrical packing 6 made of a soft material having a slit 9 on one side of the mouth and a ring-shaped convex portion 10 on the outer periphery, and a ring-shaped protrusion 11 having a trapezoidal cross section and a ring-shaped recess 12. A plastic pipe joint having

プラスチックパイプ1の外径よりも大きな内径を持つ筒状パッキン6を用いることで、プラスチックパイプ1の挿入が容易になり、また、プラスチックパイプ1の固定に関しても、ねじ山13を有する締め付けリング7で、継ぎ手本体8に有するネジ溝14を介して締め付ける際に、締め付けが進むにしたがい、台形断面のリング状突起11が、スリット9に入り込む作用で軟質系素材の筒状パッキン下部16が、プラスチックパイプ1の軸方向にせり上がる。また、リング状凸部10もリング状凹み12に入り込むに従い筒状パッキン上部15もプラスチックパイプ1の軸方向にせり上がり、この2点においてプラスチックパイプ1は固定されることで、筒状パッキン6のプラスチックパイプ1に対する圧着面積も小さく、締め付けリング7を高トルクにより締め付けた際においてもプラスチックパイプ1の亀裂、破損を防ぐことが可能である。By using the cylindrical packing 6 having an inner diameter larger than the outer diameter of the plastic pipe 1, the plastic pipe 1 can be easily inserted, and the fastening of the plastic pipe 1 can be achieved with the tightening ring 7 having the thread 13. When tightening through the screw groove 14 provided in the joint body 8, as the tightening progresses, the ring-shaped protrusion 11 having a trapezoidal cross section enters the slit 9 so that the cylindrical packing lower portion 16 made of a soft material becomes a plastic pipe. It rises in the axial direction of 1. As the ring-shaped convex portion 10 also enters the ring-shaped recess 12, the cylindrical packing upper portion 15 rises in the axial direction of the plastic pipe 1, and the plastic pipe 1 is fixed at these two points, so that the cylindrical packing 6 The crimping area with respect to the plastic pipe 1 is small, and it is possible to prevent the plastic pipe 1 from being cracked or broken even when the fastening ring 7 is fastened with a high torque.

考案を実施するための実施例Examples for carrying out the invention

この考案の一実施例を、以下に示す。One embodiment of this device is shown below.

図1は、本考案に係るの実施例を示すプラスチック用継ぎ手の断面図。図2は、片面小口にスリット9及び外周にリング状凸部10を有する軟質素材による筒状パッキン6、及び台形断面のリング状突起11、リング状凹み12を設けた継ぎ手本体8を有するプラスチックパイプ用継ぎ手の構造を示す要部の拡大断面図であり、図3はプラスチックパイプ用継ぎ手の外観斜視図である。FIG. 1 is a sectional view of a plastic joint showing an embodiment according to the present invention. FIG. 2 shows a plastic pipe having a cylindrical packing 6 made of a soft material having a slit 9 on one end and a ring-shaped convex portion 10 on the outer periphery, and a joint body 8 provided with a ring-shaped protrusion 11 having a trapezoidal cross section and a ring-shaped recess 12. FIG. 3 is an enlarged cross-sectional view of the main part showing the structure of the joint for use, and FIG. 3 is an external perspective view of the joint for plastic pipes.

図4は、本考案に係るプラスチックパイプ1の挿入時における実施例を示すプラスチック用継ぎ手の断面図であり、図5は締め付けリング7による締め付けが進むにしたがい、台形断面のリング状突起11が、スリット9に入り込む作用で軟質系素材の筒状パッキン下部16が、プラスチックパイプ1の軸方向にせり上がる。また、リング状凸部10もリング状凹み12に入り込むに従い筒状パッキン上部15もプラスチックパイプ1の軸方向にせり上がり、この2点においてプラスチックパイプ1が固定される状態を示す要部の拡大断面図、図6はプラスチックパイプ用1を挿入した固定した状態を示す外観斜視図である。FIG. 4 is a cross-sectional view of a plastic joint showing an embodiment when the plastic pipe 1 according to the present invention is inserted, and FIG. 5 shows a ring-shaped protrusion 11 having a trapezoidal cross section as the tightening by the tightening ring 7 proceeds. The cylindrical packing lower portion 16 made of a soft material rises in the axial direction of the plastic pipe 1 by the action of entering the slit 9. Further, as the ring-shaped convex portion 10 also enters the ring-shaped concave portion 12, the cylindrical packing upper portion 15 also rises in the axial direction of the plastic pipe 1, and an enlarged cross-section of the main portion showing a state where the plastic pipe 1 is fixed at these two points. FIG. 6 and FIG. 6 are external perspective views showing a state in which the plastic pipe 1 is inserted and fixed.

図7は、従来の一般的な通気パイプ、および通気弁の接続に関わるプラスチックパイプ用継ぎ手の分解外観斜視図である。挿入側プラスチックパイプ1、継ぎ手3、軟質系素材によるパッキン4、受け側プラスチックパイプ2は継ぎ手3と接着された状態の構成となる。FIG. 7 is an exploded external perspective view of a conventional general ventilation pipe and a plastic pipe joint related to the connection of a ventilation valve. The insertion side plastic pipe 1, the joint 3, the packing 4 made of a soft material, and the receiving side plastic pipe 2 are configured to be bonded to the joint 3.

図8は、従来の一般的な通気パイプ、および通気弁の接続に関わるプラスチックパイプ用継ぎ手におけるプラスチックパイプ1挿入時の外観斜視図であり、プラスチックパイプ1の外径とパッキン4の内径の径数値が近いため、着脱においてとりわけ比較的狭い場所での作業に際し、過剰な力を有したパイプ挿入に伴いプラスチックパイプ1の亀裂、破損が生じるという課題を示す概略図である。FIG. 8 is an external perspective view of a conventional plastic pipe and a plastic pipe joint related to the connection of a vent valve when the plastic pipe 1 is inserted, and the numerical values of the outer diameter of the plastic pipe 1 and the inner diameter of the packing 4 are shown. FIG. 6 is a schematic view showing a problem that the plastic pipe 1 is cracked or broken due to insertion of a pipe having an excessive force, particularly when working in a relatively narrow place for attachment and detachment.

「実施形態の効果」
プラスチックパイプ1の外径よりも大きな内径を持つ筒状パッキン6を用いることで、プラスチックパイプ1の挿入が容易になった。また、プラスチックパイプ1の固定に関しても、ねじ山13を有する締め付けリング7で、継ぎ手本体8に有するネジ溝14を介して締め付ける際に、締め付けが進むにしたがい、台形断面のリング状突起11が、スリット9に入り込む作用で軟質系素材の筒状パッキン下部16が、プラスチックパイプ1の軸方向にせり上がる。また、リング状凸部10もリング状凹み12に入り込むに従い筒状パッキン上部15もプラスチックパイプ1の軸方向にせり上がり、この2点においてプラスチックパイプ1は固定されることで、筒状パッキン6のプラスチックパイプ1に対する圧着面積も小さく、締め付けリング7を高トルクにより締め付けた際においてもプラスチックパイプ1の亀裂、破損を防ぐことが可能となった。
"Effect of the embodiment"
By using the cylindrical packing 6 having an inner diameter larger than the outer diameter of the plastic pipe 1, the plastic pipe 1 can be easily inserted. Further, regarding the fixing of the plastic pipe 1, when the tightening ring 7 having the screw thread 13 is tightened through the thread groove 14 provided in the joint body 8, as the tightening proceeds, the ring-shaped protrusion 11 having a trapezoidal cross section is formed. The cylindrical packing lower portion 16 made of a soft material rises in the axial direction of the plastic pipe 1 by the action of entering the slit 9. As the ring-shaped convex portion 10 also enters the ring-shaped recess 12, the cylindrical packing upper portion 15 rises in the axial direction of the plastic pipe 1, and the plastic pipe 1 is fixed at these two points, so that the cylindrical packing 6 The crimping area with respect to the plastic pipe 1 is small, and it is possible to prevent the plastic pipe 1 from being cracked or broken even when the fastening ring 7 is fastened with high torque.

本考案に係る実施例を示すプラスチック用継ぎ手の断面図である。It is sectional drawing of the joint for plastics which shows the Example which concerns on this invention. 本考案に係る実施例を示すプラスチック用継ぎ手の要部の拡大断面図である。It is an expanded sectional view of the principal part of the joint for plastics which shows the example concerning the present invention. 本考案に係る実施例を示すプラスチック用継ぎ手の外観斜視図である。It is an external appearance perspective view of the joint for plastics which shows the example concerning the present invention. プラスチックパイプ挿入時の本考案に係るプラスチック用継ぎ手の断面図である。It is sectional drawing of the joint for plastics which concerns on this invention at the time of plastic pipe insertion. プラスチックパイプ挿入時の本考案に係るプラスチック用継ぎ手の要部の拡大断面図である。It is an expanded sectional view of the principal part of the joint for plastics concerning this invention at the time of plastic pipe insertion. プラスチックパイプ挿入時の本考案に係るプラスチック用継ぎ手の外観斜視図である。It is an external appearance perspective view of the joint for plastics concerning the present invention at the time of plastic pipe insertion. 一般的な通気パイプ、および通気弁に係るプラスチックパイプ用継ぎ手の外観斜視図である。It is an external appearance perspective view of the joint for plastic pipes concerning a general ventilation pipe and a ventilation valve. プラスチックパイプを挿入した際の従来のプラチックパイプ用継ぎ手の外観斜視図である。It is an external appearance perspective view of the conventional joint for plastic pipes when a plastic pipe is inserted.

符号の説明Explanation of symbols

1 プラスチックパイプ
2 受け側プラスチックパイプ
3 従来の継ぎ手本体
4 従来のパッキン
5 継ぎ手上部開口部
6 筒状パッキン
7 締め付けリング
8 継ぎ手本体
9 スリット
10 リング状凸部
11 台形断面のリング状突起
12 リング状凹み
13 ねじ山
14 ネジ溝
15 筒状パッキン上部
16 筒状パッキン下部
DESCRIPTION OF SYMBOLS 1 Plastic pipe 2 Reception side plastic pipe 3 Conventional joint main body 4 Conventional packing 5 Joint upper opening part 6 Cylindrical packing 7 Tightening ring 8 Joint main body 9 Slit 10 Ring-shaped convex part 11 Ring-shaped protrusion 12 of trapezoidal cross section Ring-shaped dent 13 Thread 14 Thread groove 15 Tubular packing upper part 16 Tubular packing lower part

Claims (1)

プラスチックパイプ1を、パイプ継ぎ手本体8に上部開口部5より挿入し、プラスチックパイプ1の外径より大きな内径を持つ軟質系素材による筒状パッキン6と締め付けリング7によって接続するプラスチックパイプ用継ぎ手において、片面小口にスリット9及び外周にリング状凸部10を有する軟質系素材による筒状パッキン6、及び台形断面のリング状突起11、リング状凹み12を有する継ぎ手本体8と締め付けリング7により、プラスチックパイプ1の挿入作業性の向上、及びプラスチックパイプ1の亀裂、破損を防ぐことを目的としたプラスチックパイプ用継ぎ手。In the plastic pipe joint, the plastic pipe 1 is inserted into the pipe joint main body 8 from the upper opening 5 and connected by the cylindrical packing 6 made of a soft material having an inner diameter larger than the outer diameter of the plastic pipe 1 and the fastening ring 7. A plastic pipe is formed by a cylindrical packing 6 made of a soft material having a slit 9 on one end and a ring-shaped convex portion 10 on the outer periphery, a ring-shaped protrusion 11 having a trapezoidal cross section, a joint body 8 having a ring-shaped recess 12 and a tightening ring 7. A joint for plastic pipes for the purpose of improving the insertion workability of 1 and preventing cracking and breakage of the plastic pipe 1.
JP2008000487U 2008-01-04 2008-01-04 Plastic pipe fittings Expired - Fee Related JP3140920U (en)

Priority Applications (1)

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Application Number Priority Date Filing Date Title
JP2008000487U JP3140920U (en) 2008-01-04 2008-01-04 Plastic pipe fittings

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012157526A1 (en) * 2011-05-17 2012-11-22 日立造船株式会社 Attachment device for separation film element in separation film module
KR102188307B1 (en) 2020-04-29 2020-12-08 토트라 One touch assembly structure for plastic pipe with easy-assembly

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012157526A1 (en) * 2011-05-17 2012-11-22 日立造船株式会社 Attachment device for separation film element in separation film module
JP2012239949A (en) * 2011-05-17 2012-12-10 Hitachi Zosen Corp Attachment device for separation film element in separation film module
KR102188307B1 (en) 2020-04-29 2020-12-08 토트라 One touch assembly structure for plastic pipe with easy-assembly

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