JP2004092680A - Pipe joint - Google Patents

Pipe joint Download PDF

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Publication number
JP2004092680A
JP2004092680A JP2002251010A JP2002251010A JP2004092680A JP 2004092680 A JP2004092680 A JP 2004092680A JP 2002251010 A JP2002251010 A JP 2002251010A JP 2002251010 A JP2002251010 A JP 2002251010A JP 2004092680 A JP2004092680 A JP 2004092680A
Authority
JP
Japan
Prior art keywords
main body
pipe joint
fastening member
groove
adapter
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
Application number
JP2002251010A
Other languages
Japanese (ja)
Inventor
Nobuyuki Asari
浅里 信之
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nitta Moore Co
Original Assignee
Nitta Moore Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Nitta Moore Co filed Critical Nitta Moore Co
Priority to JP2002251010A priority Critical patent/JP2004092680A/en
Publication of JP2004092680A publication Critical patent/JP2004092680A/en
Pending legal-status Critical Current

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  • Joints With Pressure Members (AREA)
  • Branch Pipes, Bends, And The Like (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a pipe joint wherein a main body is less prone to be slipped off in comparison with a conventional one. <P>SOLUTION: An adaptor 3 is fitted in the main body 2 holding a pipe 1, and the adaptor 3 is fastened and fixed to an apparatus by a fastening member 7 from its outer part. The fastening member 7 is provided with an approximately annular groove part 11, the main body 2 is provided with a projecting part 12 inserted into the groove part 11, and a length of the projecting part is determined to insert the main body into the groove part 11 in a state of being obliquely displaced to the fastening member. <P>COPYRIGHT: (C)2004,JPO

Description

【0001】
【発明の属する技術分野】
この発明は、配管を接続するための管継手に関するものである。
【0002】
【従来の技術】
従来より、流体を移送するための配管を接続するために管継手が使用されている。
【0003】
図5に示すように、この管継手はボディ本体21内にアダプタ22を無理嵌めしており、外方からナット23により一体的に締め付けて機器等(図示せず)に固定する。前記アダプタ22と機器等との間に介在するシール用パッキン24により、流体密性を担保している。
【0004】
この管継手は、機器等に取り付けた後でも必要に応じてエルボー状としたボディ本体21を回動させて向きを変えることができるという利点がある。
【0005】
しかし、使用中に配管に足を引っ掛けたりして抜け方向に思いがけない強い力が働くと、ナット23とアダプタ22により機器等に締め付けたボディ本体21が抜け出してしまうおそれがあるという問題があった。
【0006】
【発明が解決しようとする課題】
そこでこの発明は、ボディ本体が従来よりも抜け出し難い管継手を提供しようとするものである。
【0007】
【課題を解決するための手段】
前記課題を解決するためこの発明では次のような技術的手段を講じている。
▲1▼ この発明の管継手は、配管を保持するボディ本体内にアダプタが嵌合され、その外方から締付部材により前記アダプタを機器等に向けて締め付けて固定する形式であり、前記締付部材には略環状の溝部が形成され、前記ボディ本体には前記溝部に挿入する突出部が形成されると共に、前記突出部はボディ本体を締付部材に対して斜め方向にずらすことにより溝部に挿入できるような長さに設定されたことを特徴とする。
【0008】
この管継手では、ボディ本体に形成された突出部はボディ本体を締付部材に対して斜め方向にずらすことにより溝部に挿入できるような長さに設定されており、ボディ本体と締付部材とが斜め方向から正方向へと配置された際には突出部は溝部のより深部まで到達しているので、ボディ本体と締付部材との係合力が向上している。
【0009】
なお略環状の溝部は、一部に不連続な箇所があってもボディ本体を回動させて向きを変えることができればよい。
▲2▼ 前記ボディ本体に凸部が突出形成され締付部材と当接して位置決めするようにしたこととしてもよい。
【0010】
このように構成すると、使用時にボディ本体と締付部材との位置ずれを抑制して溝部からの突出部の抜け出しを好適に防止することができる。また、ボディ本体と締付部材とのセンターを正確に出して相互間の円滑な回動を担保することができる。
【0011】
【発明の実施の形態】
以下、この発明の実施の形態を図面を参照して説明する。
【0012】
図1乃至図4に示すように、この実施形態の管継手は、配管1(プラスチック・チューブ)を保持する構造を内蔵するエルボー状とした合成樹脂製のボディ本体2内に、アダプタ3が機器等(図示せず)への接続端側4から挿入されて嵌合(無理嵌め)されている。
【0013】
前記ボディ本体2とアダプタ3とは、ボディ本体2に形成された環状凹部5とアダプタ3に形成された環状凸部6とを嵌合させるようにしているが、逆に、ボディ本体2に環状凸部を形成しアダプタ3に環状凹部を形成してこれらを嵌合させるようにしてもよい。
【0014】
そして、前記ボディ本体2の外方から締付部材7により前記アダプタ3を機器等に向けて締め付けて固定する形式としている。前記締付部材7として、螺溝を有する合成樹脂製のナットを用いている。また、前記アダプタ3と機器等との間に介在するシール用パッキン8により流体密性を担保し、ボディ本体2とアダプタ3との間にはシール用のOリング9を奥側に介在させている。
【0015】
前記締付部材7の開口端側10の内周面には環状の溝部11が形成され、前記ボディ本体2には前記溝部11に挿入する突出部12が突設形成されている。図4(a)〜(f)に示すように、前記突出部12は、ボディ本体2を締付部材7に対して斜め方向にずらすことにより溝部11に挿入できるような長さに設定している(特に同図の(c)〜(f)参照)。また、前記ボディ本体2の外周面には凸部13を突出形成しており、締付部材7の開口端の内周面と当接して位置決めできるようにしている。
【0016】
この管継手の組立て時には、図4(a)に示すように締付部材7の開口端にボディ本体2を持ってきて、同図 (b)に示すようにボディ本体2の突出部12が締付部材7の開口端から入るように位置を調整し、同図 (c)に示すようにボディ本体2を締付部材7の開口端の内周面に対して図示左方向いっぱいに変位させ、この状態でボディ本体2の図示右側を図示下方にずらし、同図(d) (e)に示すように締付部材7の内周面の環状の溝部11へボディ本体2の突出部12を挿入していき、こうして溝部11の奥の方まで突出部12を挿入した状態で、同図(e) (f)に示すようにボディ本体2の外周面に突出形成した凸部13を締付部材7の開口端の内周面と当接させて位置決めする。
【0017】
次に、この実施形態の管継手の使用状態を説明する。
【0018】
図4(a)〜(f)に示すように、この管継手では、ボディ本体2に形成された突出部12はボディ本体2を締付部材7に対して斜め方向にずらすことにより溝部11に挿入できるような長さに設定されており、ボディ本体2と締付部材7とが斜め方向から正方向へと配置された際には突出部12は溝部11のより深部まで到達しているので、ボディ本体2と締付部材7との係合力が向上しており、ボディ本体2が従来よりも抜け出し難いという利点がある。
【0019】
また、前記ボディ本体2に凸部13が突出形成され、締付部材7と当接して位置決めするようにしてので、使用時にボディ本体2と締付部材7との位置ずれを抑制して溝部11からの突出部12の抜け出しを好適に防止することができる。また、ボディ本体2と締付部材7とのセンターを正確に出して相互間の円滑な回動を担保することができる。
【0020】
更に、機器等に取り付けた後でも必要に応じてボディ本体2(エルボー状)を回動させて向きを変えることができる。すなわち、使用時の必要に応じた回動を可能としながら、且つ管継手からボディ本体2が非常に抜け難いようにすることができるという利点がある。
【0021】
【発明の効果】
この発明は上述のような構成であり、次の効果を有する。
【0022】
ボディ本体と締付部材との係合力が向上しているので、ボディ本体が従来よりも抜け出し難い管継手を提供することができる。
【図面の簡単な説明】
【図1】この発明の管継手の実施形態を説明する半断面図。
【図2】図1の管継手の分解状態を説明する半断面図。
【図3】図1の管継手のボディ本体の底面図。
【図4】図1の管継手の組立て状態を説明する図。
【図5】従来の管継手を説明する半断面図。
【符号の説明】
1 配管
2 ボディ本体
3 アダプタ
7 締付部材
11 溝部
12 突出部
13 凸部
[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a pipe joint for connecting pipes.
[0002]
[Prior art]
Conventionally, a pipe joint has been used to connect a pipe for transferring a fluid.
[0003]
As shown in FIG. 5, the pipe joint has an adapter 22 forcibly fitted in a body 21 and is integrally fastened from the outside with a nut 23 to be fixed to a device or the like (not shown). Fluid tightness is ensured by a seal packing 24 interposed between the adapter 22 and devices and the like.
[0004]
This pipe joint has the advantage that the elbow-shaped body main body 21 can be rotated to change its direction as required even after it is attached to equipment or the like.
[0005]
However, if an unexpectedly strong force is applied in the pull-out direction by hooking a foot on the pipe during use, there is a problem that the body body 21 fastened to the device or the like by the nut 23 and the adapter 22 may come off. .
[0006]
[Problems to be solved by the invention]
Therefore, the present invention aims to provide a pipe joint in which the body body is harder to come out than in the past.
[0007]
[Means for Solving the Problems]
In order to solve the above problems, the present invention employs the following technical means.
{Circle around (1)} The pipe joint of the present invention is of a type in which an adapter is fitted into a body main body holding a pipe, and the adapter is tightened from outside to a device or the like by a tightening member and fixed. A substantially annular groove is formed in the attachment member, and a protrusion is formed in the body main body to be inserted into the groove, and the protrusion is formed by shifting the body in an oblique direction with respect to the tightening member. The length is set such that it can be inserted into the.
[0008]
In this pipe joint, the protruding portion formed on the body main body is set to have a length such that the body main body can be inserted into the groove by obliquely displacing the body main body with respect to the tightening member. When is disposed from the oblique direction to the forward direction, the protrusion reaches the deeper part of the groove, so that the engaging force between the body main body and the fastening member is improved.
[0009]
It should be noted that the substantially annular groove portion only needs to be able to change the direction by rotating the body main body even if there is a discontinuous portion in a part.
{Circle around (2)} The projection may be formed on the body main body so as to be in contact with the fastening member for positioning.
[0010]
With this configuration, it is possible to suppress displacement of the body body and the tightening member during use and to appropriately prevent the protrusion from coming out of the groove. In addition, the center between the body main body and the fastening member can be accurately extended to ensure smooth rotation between them.
[0011]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0012]
As shown in FIGS. 1 to 4, the pipe joint according to this embodiment has an adapter 3 in an elbow-shaped synthetic resin body 2 having a built-in structure for holding a pipe 1 (plastic tube). (Not shown) from the connection end side 4 and fitted (forcibly fitted).
[0013]
The body main body 2 and the adapter 3 are adapted to fit the annular concave portion 5 formed on the body main body 2 with the annular convex portion 6 formed on the adapter 3. A convex portion may be formed, an annular concave portion may be formed in the adapter 3, and these may be fitted.
[0014]
Then, the adapter 3 is tightened from outside of the body main body 2 toward a device or the like by a tightening member 7 and fixed. As the fastening member 7, a synthetic resin nut having a thread groove is used. In addition, fluid tightness is ensured by a sealing gasket 8 interposed between the adapter 3 and a device or the like, and a sealing O-ring 9 is interposed between the body body 2 and the adapter 3 on the back side. I have.
[0015]
An annular groove 11 is formed on the inner peripheral surface on the opening end side 10 of the fastening member 7, and a projection 12 inserted into the groove 11 is formed on the body body 2 so as to protrude. As shown in FIGS. 4A to 4F, the projecting portion 12 is set to have such a length that it can be inserted into the groove 11 by displacing the body main body 2 obliquely with respect to the tightening member 7. (Particularly, see (c) to (f) of FIG. 3). In addition, a projection 13 is formed on the outer peripheral surface of the body main body 2 so as to protrude therefrom so that it can be positioned in contact with the inner peripheral surface of the opening end of the fastening member 7.
[0016]
At the time of assembling the pipe joint, the body 2 is brought to the open end of the fastening member 7 as shown in FIG. 4 (a), and the protrusion 12 of the body 2 is tightened as shown in FIG. 4 (b). The position is adjusted so as to enter from the opening end of the attachment member 7, and the body main body 2 is displaced to the left in the drawing with respect to the inner peripheral surface of the opening end of the fastening member 7 as shown in FIG. In this state, the right side in the figure of the body 2 is shifted downward in the figure, and the protruding portion 12 of the body 2 is inserted into the annular groove 11 on the inner peripheral surface of the fastening member 7 as shown in FIGS. Then, in the state where the protruding portion 12 is inserted to the depth of the groove portion 11 as described above, the protruding portion 13 protrudingly formed on the outer peripheral surface of the body main body 2 as shown in FIGS. 7 is positioned in contact with the inner peripheral surface of the opening end.
[0017]
Next, a use state of the pipe joint of this embodiment will be described.
[0018]
As shown in FIGS. 4 (a) to 4 (f), in this pipe joint, the protrusion 12 formed on the body 2 is formed in the groove 11 by shifting the body 2 obliquely with respect to the fastening member 7. The length is set so that it can be inserted, and when the body body 2 and the tightening member 7 are arranged from the oblique direction to the forward direction, the protruding portion 12 reaches a deeper portion of the groove portion 11. In addition, the engaging force between the body body 2 and the fastening member 7 is improved, and there is an advantage that the body body 2 is harder to come out than before.
[0019]
In addition, since the projection 13 is formed on the body 2 so as to protrude therefrom and is positioned in contact with the fastening member 7, the displacement between the body 2 and the fastening member 7 during use is suppressed to suppress the groove 11. The protrusion of the protruding portion 12 from the can be suitably prevented. In addition, the center between the body body 2 and the fastening member 7 can be accurately brought out to ensure smooth rotation between them.
[0020]
Furthermore, even after attachment to a device or the like, the direction can be changed by rotating the body main body 2 (elbow shape) as necessary. That is, there is an advantage that the body main body 2 can be very hard to come off from the pipe joint while enabling rotation as required in use.
[0021]
【The invention's effect】
The present invention is configured as described above and has the following effects.
[0022]
Since the engaging force between the body main body and the tightening member is improved, it is possible to provide a pipe joint in which the body main body is harder to come out than before.
[Brief description of the drawings]
FIG. 1 is a half sectional view illustrating an embodiment of a pipe joint according to the present invention.
FIG. 2 is a half sectional view illustrating an exploded state of the pipe joint of FIG. 1;
FIG. 3 is a bottom view of a body main body of the pipe joint of FIG. 1;
FIG. 4 is a view for explaining an assembled state of the pipe joint of FIG. 1;
FIG. 5 is a half sectional view illustrating a conventional pipe joint.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Piping 2 Body main body 3 Adapter 7 Tightening member 11 Groove part 12 Projection part 13 Convex part

Claims (2)

配管を保持するボディ本体内にアダプタが嵌合され、その外方から締付部材により前記アダプタを機器等に向けて締め付けて固定する形式であり、前記締付部材には略環状の溝部が形成され、前記ボディ本体には前記溝部に挿入する突出部が形成されると共に、前記突出部はボディ本体を締付部材に対して斜め方向にずらすことにより溝部に挿入できるような長さに設定されたことを特徴とする管継手。An adapter is fitted into the body body that holds the pipe, and the adapter is tightened and fixed to the device or the like from the outside by a fastening member, and a substantially annular groove is formed in the fastening member. The body has a projection formed therein for insertion into the groove, and the projection is set to a length such that the body can be inserted into the groove by displacing the body in an oblique direction with respect to the tightening member. A pipe joint characterized in that: 前記ボディ本体に凸部が突出形成され締付部材と当接して位置決めするようにした請求項1記載の管継手。2. The pipe joint according to claim 1, wherein a projection is formed on the body main body so as to abut against a fastening member for positioning.
JP2002251010A 2002-08-29 2002-08-29 Pipe joint Pending JP2004092680A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2002251010A JP2004092680A (en) 2002-08-29 2002-08-29 Pipe joint

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2002251010A JP2004092680A (en) 2002-08-29 2002-08-29 Pipe joint

Publications (1)

Publication Number Publication Date
JP2004092680A true JP2004092680A (en) 2004-03-25

Family

ID=32057702

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2002251010A Pending JP2004092680A (en) 2002-08-29 2002-08-29 Pipe joint

Country Status (1)

Country Link
JP (1) JP2004092680A (en)

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