JPS5817185Y2 - Disengagement prevention pipe fitting - Google Patents
Disengagement prevention pipe fittingInfo
- Publication number
- JPS5817185Y2 JPS5817185Y2 JP1978179612U JP17961278U JPS5817185Y2 JP S5817185 Y2 JPS5817185 Y2 JP S5817185Y2 JP 1978179612 U JP1978179612 U JP 1978179612U JP 17961278 U JP17961278 U JP 17961278U JP S5817185 Y2 JPS5817185 Y2 JP S5817185Y2
- Authority
- JP
- Japan
- Prior art keywords
- socket
- sleeve
- protrusion
- lock ring
- weld bead
- 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)
Description
【考案の詳細な説明】 本考案は離脱防止管継手に関するものである。[Detailed explanation of the idea] The present invention relates to a separation prevention pipe joint.
従来、離脱防止機能を備えた管継手として、挿口外面に
遊嵌するスリーブを受口に継ぎ足して該受口にボルト固
定し、スリーブの内面に設けられた突部と挿口外面の突
部との保合により受口と挿口との相互の離脱阻止がなさ
れるように構成したものが提案されている。Conventionally, as a pipe joint with a detachment prevention function, a sleeve that loosely fits on the outer surface of the socket is attached to the socket and bolted to the socket, and a protrusion provided on the inner surface of the sleeve and a protrusion on the outer surface of the socket are used. A configuration has been proposed in which the receptacle and the receptacle are prevented from separating from each other by engagement with the receptacle.
ところが、地中に配管した場合、スリーブを受口に固定
しているボルトに腐食が生じ、受口と挿口との間に離脱
力が作用したときに上記ボルトが破断して離脱阻止機能
が損われる問題がある。However, when piping is installed underground, the bolts that secure the sleeve to the socket become corroded, and when a detachment force is applied between the socket and the socket, the bolts break and the detachment prevention function is disabled. There is a problem of loss.
また、例えば、実公昭５２−４５８４８号公報の管継手
では、スリーブと受口端部とをねし対偶で結合しており
、該スリーブには、それに設けた環状溝に保持されたロ
ックリングを挿口外面の凹溝に押圧するセットボルトが
、スリーブを径方向に貫通して設けられている。Further, for example, in the pipe joint disclosed in Japanese Utility Model Publication No. 52-45848, the sleeve and the socket end are connected by a twisted pair, and the sleeve has a lock ring held in an annular groove provided therein. A set bolt that presses against the groove on the outer surface of the insertion port is provided to penetrate the sleeve in the radial direction.
この場合、スリーブと受口端部との結合は、スリーブ内
面を一部切除して設けたねじ部と、受口端部外面を一部
切除して設けたねじ部との螺合により結合しているため
、加工は複雑で、継手接合作業は煩雑である。In this case, the sleeve and the socket end are connected by threading a threaded part created by cutting out a portion of the inner surface of the sleeve and a threaded part created by cutting away a part of the outside surface of the socket end. Therefore, processing is complicated and joint joining work is complicated.
特開昭５３−３４１２７号公報のものにおいても、同じ
である。The same applies to the one disclosed in Japanese Patent Application Laid-Open No. 53-34127.
本考案は、従来構造の離脱防止機構を改良し、溶接ビー
ドを用いることにより製造が容易であるとともに、簡単
な作業で継手接合が行なえるものであり、しかも確実な
離脱防止機能が得られる新規な離脱防止管継手を提供す
ることを目的とするものである。This invention improves the separation prevention mechanism of the conventional structure and uses a weld bead, making it easy to manufacture and joining the joint with simple work.Moreover, it is a new system that provides a reliable separation prevention function. The purpose of this invention is to provide a separation-preventing pipe joint.
本考案は、受口開口端のフランジに隣接する受口内面と
挿口外面との間にシール材を介装し、受口外方で挿口外
面に遊嵌するスリーブの一端外面と受口開口端の外面と
にわたり、内面がねじ部に形成された結合リングを螺着
し、前記スリーブの他端内面に突部を設け、この突部と
受口開口端フランジの間で挿口外面に環状の溶接ビード
を形成し、前記突部と溶接ビードの間に位置してこれら
に保合可能な周方向一つ割りのロックリングを挿口に外
嵌して設け、前記突部とロックリングとの互いの保合面
を、保合時にロックリングに縮径力を作用させるテーパ
面に形成した構成にすることにより、所期の目的を達成
したものである。In this invention, a sealing material is interposed between the inner surface of the socket adjacent to the flange at the opening end of the socket and the outer surface of the socket, and the outer surface of one end of the sleeve that loosely fits on the outer surface of the socket on the outside of the socket and the opening of the socket. A coupling ring having a threaded inner surface is screwed over the outer surface of the end, a protrusion is provided on the inner surface of the other end of the sleeve, and an annular ring is provided on the outer surface of the receptacle between the protrusion and the flange at the opening end of the sleeve. A weld bead is formed, and a circumferentially split lock ring that is located between the protrusion and the weld bead and can be secured thereto is fitted externally to the insertion opening, and the protrusion and the lock ring are disposed between the protrusion and the lock ring. The desired objective is achieved by forming the locking surfaces of the lock rings into tapered surfaces that apply a diameter reducing force to the lock ring during locking.
以下本考案の一実施例を図面に基づいて説明する。An embodiment of the present invention will be described below based on the drawings.
１は受口、２は挿口である。受口１の開口端の内面に設
けられたフランジ３の奥側に隣接して環状の凹部４が設
けられ、凹部４と挿口２の外面との間にゴム等からなる
環状のシール材５が配置されている。1 is the socket and 2 is the socket. An annular recess 4 is provided adjacent to the back side of the flange 3 provided on the inner surface of the opening end of the socket 1, and an annular sealing material 5 made of rubber or the like is provided between the recess 4 and the outer surface of the socket 2. is located.
６は凹部４の底面に設けられシール材５の外面の突部に
係合する係合突部である。Reference numeral 6 designates an engaging protrusion that is provided on the bottom surface of the recess 4 and engages with a protrusion on the outer surface of the sealing material 5 .
係合突部６は挿口２を受口１に挿入するときにシール材
５が引きずられることを防止するものである。The engagement protrusion 6 prevents the sealing material 5 from being dragged when the socket 2 is inserted into the socket 1.
受口１の外方に位置してスリーブ７が挿口２の外面に遊
嵌している。A sleeve 7 is located outside the socket 1 and loosely fits onto the outer surface of the socket 2.
スリーブ７の一端外面および受口１の開口端外面にねじ
部８，９が設けられ、スリーブ７は両ねじ部８，９にわ
たり螺着された結合リング１０により受口１に固定され
ている。Threaded portions 8 and 9 are provided on the outer surface of one end of the sleeve 7 and the outer surface of the open end of the socket 1, and the sleeve 7 is fixed to the socket 1 by a coupling ring 10 screwed over both threaded portions 8 and 9.
スリーブ７は他端内面に環状の突部１１を有し、突部１
１にロックリング１２を介して係合する環状の溶接ビー
ド１３が前記突部１１とフランジ３の間に位置して挿口
２の外面に形成されている。The sleeve 7 has an annular protrusion 11 on the inner surface of the other end.
An annular weld bead 13 is formed on the outer surface of the socket 2 between the protrusion 11 and the flange 3, and is engaged with the socket 1 through the lock ring 12.
挿口２の溶接ビード１３はスリーブ７の突部１１の内側
を通過可能な高さであり、ロックリング１２は周方向一
つ割りで縞付勢力を有するもので、挿口２の外面に外嵌
されて張り付いている。The welding bead 13 of the socket 2 has a height that allows it to pass through the inside of the protrusion 11 of the sleeve 7, and the lock ring 12 is divided into parts in the circumferential direction and has a striped biasing force. It is fitted and stuck.
スリーブ７の突部１１とロックリング１２の相互の係合
面１１ａ、１２ａは互いに勾配が一致するテーパ面に形
成されている。The mutually engaging surfaces 11a and 12a of the protrusion 11 of the sleeve 7 and the lock ring 12 are formed into tapered surfaces whose slopes match each other.
このような構成であると、挿口２の溶接ビード１３とス
リーブ７の突部１１とがロックリング１２を介して係合
することにより、受口１と挿口２との相互の離脱阻止が
なされ、両突部１１と溶接ビード１３が上記のように係
合するまでの間で受口１と挿口２との管軸方向相対移動
が可能である。With this configuration, the weld bead 13 of the socket 2 and the protrusion 11 of the sleeve 7 engage with each other via the lock ring 12, thereby preventing the socket 1 and the socket 2 from separating from each other. The socket 1 and the socket 2 can be moved relative to each other in the tube axis direction until the protrusions 11 and the weld bead 13 are engaged as described above.
スノーブ７の突部１１とロックリング１２の係合面１１
ａ、１２ａはテーパ面に形成されているので、保合時に
ロックリング１２に縮径力が作用し、ロックリング１２
と溶接ビード１３との係合はより正確なものとなり、確
実な離脱防止がなされる″。The protrusion 11 of the snob 7 and the engagement surface 11 of the lock ring 12
Since a and 12a are formed into tapered surfaces, a diameter reducing force acts on the lock ring 12 when the lock ring 12 is secured, and the lock ring 12
The engagement between the weld bead 13 and the weld bead 13 becomes more accurate, and separation can be reliably prevented.
そのため、強大な離脱力が作用しても、ロックリング１
２が拡径し挿口２の溶接ビード１３を乗り越えて外れる
ようなことはなく、大きな離脱力に対しても確実な離脱
阻止がなされる。Therefore, even if a strong breakaway force is applied, the lock ring 1
2 will not expand in diameter and come off by climbing over the weld bead 13 of the insertion port 2, and even a large detachment force will be reliably prevented from detaching.
つぎに継手接合作業につき説明する。Next, the joint joining work will be explained.
受口１にシール材５を装着し、挿口２の外面に挿口２の
先端側からスリーブ７、ロックリング１２および結合ノ
ング１０を預ける。A sealing material 5 is attached to the socket 1, and a sleeve 7, a lock ring 12, and a connecting tongue 10 are placed on the outer surface of the socket 2 from the distal end side of the socket 2.
ロックリング１２は拡径させて挿口２の溶接ビード１３
を通過させる。The lock ring 12 is expanded in diameter to form the weld bead 13 of the insertion port 2.
pass.
この状態で挿口２を受口１に挿入し、その後結合リング
１０でスリーブ７を受口１に固定する。In this state, the socket 2 is inserted into the socket 1, and then the sleeve 7 is fixed to the socket 1 with the coupling ring 10.
結合リング１０は、挿口２の受口１への挿入前に受口１
に取付けておいてもよい。The coupling ring 10 is connected to the socket 1 before inserting the socket 2 into the socket 1.
It may be attached to the
このようにして接合作業が完了する。In this way, the joining work is completed.
ロックリング１２を設けずに、挿口１の溶接ビード１３
とスリーブ７の突部１１とを直接に係合させるように構
成しても離脱阻止機能において支障はないが、その場合
スリーブ７を挿口２の先端から溶接ビード１３を通過さ
せて預は入れることかで゛きなくなる。Weld bead 13 of socket 1 without providing lock ring 12
Even if the protrusion 11 of the sleeve 7 is configured to directly engage with the protrusion 11 of the sleeve 7, there is no problem with the detachment prevention function, but in that case, the sleeve 7 is inserted by passing the weld bead 13 from the tip of the insertion port 2. I can't stand it anymore.
そのため、スリーブ７を周方向に分割する等の必要が生
じる。Therefore, it becomes necessary to divide the sleeve 7 in the circumferential direction.
しかし、本考案はロックリング１２を介して挿口２とス
リーブ７の突部１１と溶接ビード１３を係合させるよう
に構成したので、挿口２の溶接ビード１３を低く形成し
てスリーブ７を通過可能とすることができ、上記のよう
に簡単な作業で継手接合を行なうことができる。However, in the present invention, the protrusion 11 of the socket 2 and the sleeve 7 is engaged with the weld bead 13 via the lock ring 12, so the weld bead 13 of the socket 2 is formed low and the sleeve 7 is It is possible to pass through the joint, and the joint can be joined by a simple operation as described above.
尚、上記においては結合リング１０とスリーブ７は別体
のものについて述べたが、一体のものであっても良いの
は勿論である。In addition, although the coupling ring 10 and the sleeve 7 were described as being separate bodies, it goes without saying that they may be integrally formed.
以下本考案によれば、挿口外面の加工は溶接ビードの形
成だはでよく、非常に簡単な構造でありながら、背抜は
出し時には、スリーブの突部とロックリングがそのテー
パ面で係合し、ロックリングは縮径力を受けて溶接ビー
ドに正確に係合し、確実な離脱防止がなされるものであ
り、従来溶接ビードの使用は困難であると考えられてい
た構造の簡素化を達成したものである。According to the present invention, the outer surface of the insertion port can be processed by simply forming a weld bead, and although it has a very simple structure, when the back is removed, the protrusion of the sleeve and the lock ring engage with the tapered surface. The lock ring is subjected to diameter shrinking force and accurately engages with the weld bead, ensuring reliable prevention of disengagement. This simplifies the structure, which was previously considered difficult to use with a weld bead. has been achieved.
しかもスリーブの結合リングを介しての受口開口端外面
への螺合作業も容易であり、簡単に継手接合を実施し得
る利点を有する。Moreover, it is easy to screw the sleeve onto the outer surface of the opening end of the socket via the coupling ring, which has the advantage that the joint can be easily joined.
また、スリーブと挿口の溶接ビードとはロックリングを
介して係合させるように構成したので、挿口の溶接ビー
ドが邪魔となることなくスリーブを挿口に外嵌させるこ
とができ、継手接合を簡単に行なうことができる。In addition, since the sleeve and the weld bead of the socket are configured to engage through a lock ring, the sleeve can be fitted onto the socket without the weld bead of the socket getting in the way, and the joint can be done easily.
図面は本考案の一実施例を示す断面図である。
１・・・・・・受口、２・・・・・・挿口、３・・・・
・・フランジ、５・・・・・・シール材、７・・・・・
・スリーブ、８，９・・・・・・ねじ部、１０・・・・
・・結合リング、１１・・・・・・突部、１２・・・・
・・ロックリング、１３・・・・・・溶接ビード、１１
ａ 、１２ ａ・・・・・・テーパ面。The drawing is a sectional view showing an embodiment of the present invention. 1... socket, 2... insertion, 3...
...Flange, 5...Seal material, 7...
・Sleeve, 8, 9...Threaded part, 10...
...Coupling ring, 11... Protrusion, 12...
...Lock ring, 13...Weld bead, 11
a, 12 a...Tapered surface.
Claims (1)
の間にシール材を介装し、受口の外方で挿口外面に遊嵌
するスリーブー一部外面と受口開口端の外面とに、″
、ツクＸ）乙乙累し部に形成された結合リングを蝶着し
、前記スリーブの他端内面に突部を設け、この突部と受
口開口端フランジの間で挿口外面に環状の溶接ビードを
形成し、前記突部と溶接ビードの間に位置してこれらに
係合可能な周方向一つ割りの 挿口に外嵌
して設け、前記突部とロックリングとの互いの保合面を
、保合時にロックリングに縮径力を作用させるテーパ面
に形成したことを特徴とする離脱防止管継手。A sealing material is interposed between the inner surface of the receptacle adjacent to the flange at the opening end of the receptacle and the outer surface of the receptacle, and a sleeve that fits loosely on the outer surface of the receptacle on the outside of the receptacle - a part of the outer surface and the outer surface of the receptacle opening end On the outside,
, Tsuku A weld bead is formed, and the lock ring is provided by being fitted externally into a circumferentially split socket that is located between the protrusion and the weld bead and can be engaged with the protrusion and the weld bead, so that the protrusion and the lock ring can be secured to each other. A separation prevention pipe joint characterized in that the mating surface is formed into a tapered surface that applies a diameter reducing force to the lock ring when mating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1978179612U JPS5817185Y2 (en) | 1978-12-22 | 1978-12-22 | Disengagement prevention pipe fitting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1978179612U JPS5817185Y2 (en) | 1978-12-22 | 1978-12-22 | Disengagement prevention pipe fitting |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5593782U JPS5593782U (en) | 1980-06-28 |
| JPS5817185Y2 true JPS5817185Y2 (en) | 1983-04-07 |
Family
ID=29191207
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1978179612U Expired JPS5817185Y2 (en) | 1978-12-22 | 1978-12-22 | Disengagement prevention pipe fitting |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5817185Y2 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5245848U (en) * | 1975-09-27 | 1977-03-31 | ||
| JPS5334127A (en) * | 1976-09-13 | 1978-03-30 | Kubota Ltd | Quakeproof pipe joint of inside connection |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5353929Y2 (en) * | 1974-05-18 | 1978-12-23 |
-
1978
- 1978-12-22 JP JP1978179612U patent/JPS5817185Y2/en not_active Expired
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5245848U (en) * | 1975-09-27 | 1977-03-31 | ||
| JPS5334127A (en) * | 1976-09-13 | 1978-03-30 | Kubota Ltd | Quakeproof pipe joint of inside connection |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5593782U (en) | 1980-06-28 |
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