JP2001059663A - Joint for piping - Google Patents
Joint for pipingInfo
- Publication number
- JP2001059663A JP2001059663A JP11233514A JP23351499A JP2001059663A JP 2001059663 A JP2001059663 A JP 2001059663A JP 11233514 A JP11233514 A JP 11233514A JP 23351499 A JP23351499 A JP 23351499A JP 2001059663 A JP2001059663 A JP 2001059663A
- Authority
- JP
- Japan
- Prior art keywords
- flare
- hole
- nut
- flare nut
- tube
- 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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L15/00—Screw-threaded joints; Forms of screw-threads for such joints
- F16L15/006—Screw-threaded joints; Forms of screw-threads for such joints with straight threads
- F16L15/009—Screw-threaded joints; Forms of screw-threads for such joints with straight threads with axial sealings having at least one plastically deformable sealing surface
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L19/00—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts
- F16L19/04—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts using additional rigid rings, sealing directly on at least one pipe end, which is flared either before or during the making of the connection
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Non-Disconnectible Joints And Screw-Threaded Joints (AREA)
- Joints With Pressure Members (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は空気調和機等に使用
される配管の接続装置に係わり、詳しくは、配管にフレ
ア加工を施すことなく容易かつ正確に配管接続を行うた
めの部品構成とその構造に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pipe connecting device used in an air conditioner or the like, and more particularly, to a component configuration for easily and accurately connecting pipes without performing flare processing on the pipes, and a component structure thereof. Regarding the structure.
【０００２】[0002]
【従来の技術】従来使用されていた配管の接続装置とし
ては、例えば図４の（Ａ）に示すような形のフレア接続
具21と、フレアナット22とにより構成されていた。フレ
ア接続具21は、その貫通孔23の一側開口部周縁にシール
面24を形成するとともに、外周にネジ部25を形成し、他
側の開口部に一方の管体26を接続するようになってい
る。また、フレアナット22は、その内周面にフレア接続
具21のネジ部25に対応するネジ部27を形成するととも
に、ネジ部27の奥にフレア接続具21のシール面24に対向
するシール面28を形成し、かつ先端にフレア接続具21の
貫通孔23と同軸となる貫通孔29を形成した構造で、その
貫通孔29に通した他方の管体30の先端部に、図４の
（Ｂ）に示すように、フレア接続具21のシール面24に対
向するフレア（フランジ）31を形成し、フレアナット22
をフレア接続具21に締めつけることによりフレア31の両
面をフレア接続具21とフレアナット22の両シール面24、
28に密着させ、冷媒漏れを防止するようになっていた。2. Description of the Related Art Conventionally, a pipe connecting device used in the prior art is composed of a flare connecting member 21 having a shape as shown in FIG. The flare connecting tool 21 has a sealing surface 24 formed on the periphery of one side opening of the through hole 23, a threaded portion 25 formed on the outer periphery, and one tube 26 connected to the opening on the other side. Has become. Further, the flare nut 22 has a threaded portion 27 corresponding to the threaded portion 25 of the flare connection device 21 formed on the inner peripheral surface thereof, and a seal surface facing the seal surface 24 of the flare connection device 21 at the back of the threaded portion 27. 28 is formed, and a through hole 29 is formed at the end of the tube 30 so as to be coaxial with the through hole 23 of the flare connector 21. The other end of the tube 30 passing through the through hole 29 has a structure shown in FIG. As shown in FIG. 2B, a flare (flange) 31 facing the sealing surface 24 of the flare connecting tool 21 is formed, and a flare nut 22 is formed.
To both sides of the flare 31 by tightening to the flare connector 21, both sealing surfaces 24 of the flare nut 21 and flare nut 22.
28 to prevent refrigerant leakage.
【０００３】[0003]
【発明が解決しようとする課題】ところで、前記管体30
のフレア（フランジ）31は製品組立のライン上で手作業
により加工されることが多いため加工精度が必ずしも均
一ではなく、加工不良による冷媒漏れを生ずる恐れがあ
った。したがって、本発明においては、配管にフレア加
工を施すことなく、容易かつ正確に接続できる配管の接
続装置を提供することを目的としている。By the way, the tube 30
Since the flare (flange) 31 is often processed manually on a product assembly line, the processing accuracy is not always uniform, and there is a risk of refrigerant leakage due to poor processing. Therefore, an object of the present invention is to provide a pipe connection device that can easily and accurately connect pipes without performing flare processing.
【０００４】[0004]
【課題を解決するための手段】本発明は上記の課題を解
決するためになされたものであり、貫通孔両端の開口部
を管体の挿入が可能な大きさに形成し、その一側開口部
周縁にシール面を形成するとともに、外周にネジ部を形
成し、他側の開口部に一方の管体を接続するようにして
なるフレア接続具と、内周面に前記フレア接続具のネジ
部に対応するネジ部を形成するとともに、ネジ部の奥に
前記フレア接続具のシール面に対向するシール面を形成
し、かつ先端に前記フレア接続具の貫通孔と同軸となる
貫通孔を形成すると共に、同貫通孔内に突起を設けてな
るフレアナットと、同フレアナットの貫通孔の内径より
若干小径の管体の一側に前記フレア接続具とフレアナッ
トの両シール面に挟まれるフランジを有し、前記フレア
ナットに挿通した他方の管体に被せ、前記フレア接続具
とフレアナット間に介在させるアダプタとにより配管の
接続装置を構成することにした。SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and the openings at both ends of the through-hole are formed to have a size capable of inserting a tubular body. A flare connecting device that forms a sealing surface on the peripheral edge, forms a screw portion on the outer periphery, and connects one of the pipes to the opening on the other side, and a screw of the flare connecting device on the inner peripheral surface. Forming a threaded portion corresponding to the portion, forming a sealing surface facing the sealing surface of the flare connector at the back of the threaded portion, and forming a through hole coaxial with the through hole of the flare connector at the tip. A flare nut having a projection in the through hole; and a flange sandwiched between the sealing surfaces of the flare connector and the flare nut on one side of a tube having a diameter slightly smaller than the inner diameter of the through hole of the flare nut. And inserted through the flare nut Over the square of the tube, and to configure a connection device of the pipe by the adapter to be interposed between the flared connector and the flare nut.
【０００５】また、前記突起を円弧状に形成した構成と
する。Further, the projection is formed in an arc shape.
【０００６】[0006]
【発明の実施の形態】以下、本発明の実施の形態を図１
〜図３に基づいて説明する。図において、１はフレア接
続具、２はフレアナット、３はフレア接続具１とフレア
ナット２間に介在させるアダプタである。FIG. 1 is a block diagram showing an embodiment of the present invention.
This will be described with reference to FIG. In the drawing, reference numeral 1 denotes a flare connection tool, 2 denotes a flare nut, and 3 denotes an adapter interposed between the flare connection tool 1 and the flare nut 2.
【０００７】フレア接続具１には、その貫通孔４両端の
開口部を後述するそれぞれの管体の挿入が可能な大きさ
に形成し、その一側開口部周縁にシール面５を形成する
とともに、外周にネジ部６を形成し、他側の開口部に管
体７を挿入し溶接するようになっている。In the flare connector 1, the openings at both ends of the through hole 4 are formed in a size that allows the insertion of respective pipes to be described later, and a sealing surface 5 is formed on the periphery of one side opening. A thread 6 is formed on the outer periphery, and a pipe 7 is inserted into the opening on the other side and welded.
【０００８】一方、フレアナット２には、その内周面に
フレア接続具１のネジ部６に対応するネジ部８を形成す
ると共に、ネジ部８の奥にフレア接続具１のシール面５
に対向するシール面９を形成し、かつ先端にフレア接続
具１の貫通孔４と同軸となる貫通孔10を形成すると共
に、同貫通孔10内に円弧状の突起11を設けた形になって
いる。On the other hand, on the inner surface of the flare nut 2, a screw portion 8 corresponding to the screw portion 6 of the flare connection device 1 is formed.
, A through-hole 10 coaxial with the through-hole 4 of the flare connector 1 is formed at the tip, and an arc-shaped projection 11 is provided in the through-hole 10. ing.
【０００９】また、アダプタ３は、フレアナット２の貫
通孔10の内径より若干小径の管体12からなり、その一側
にフレア接続具１とフレアナット２の両シール面５、９
に挟まれるフランジ13を設けた形になっており、フレア
ナット２に挿通した管体14に被せ、フレア接続具１とフ
レアナット２間に介在させる構成である。The adapter 3 is composed of a tube 12 having a diameter slightly smaller than the inner diameter of the through hole 10 of the flare nut 2, and one side of the seal surface 5, 9 of the flare nut 1 and the flare nut 2.
A flange 13 is provided between the flare nut 1 and the flare nut 2 so as to cover the tube 14 inserted through the flare nut 2.
【００１０】図２は以上説明した接続装置を利用した配
管の接続方法を、また、図３は配管の最終接続状態をそ
れぞれ示したもので、配管接続を行う場合は先ず管体14
にフレアナット２とアダプタ３とを順に取付けた後、管
体14の先端部をフレア接続具１の一側開口部に挿入し、
アダプタ３を移動させてそのフランジ13をフレア接続具
１のシール面５に近接させるとともに、フレアナット２
を回転させてフレア接続具１に締めつける。FIG. 2 shows a method of connecting pipes using the above-described connecting device, and FIG. 3 shows a final connection state of the pipes.
After the flare nut 2 and the adapter 3 are sequentially attached to the flare nut 1, the distal end of the tube 14 is inserted into one side opening of the flare connector 1,
The adapter 3 is moved to bring its flange 13 close to the sealing surface 5 of the flare connector 1 and the flare nut 2
And tighten it to the flare connector 1.
【００１１】そのとき、フレアナット２の貫通孔10内に
設けられた円弧状の突起11によりアダプタ３の外周が強
く押されてへこみ、その作用でアダプタ３とその内側の
管体14とが部分的に密着し、フレアナット２を更に締め
つけることによりアダプタ３の外周には図３に示すよう
な螺旋形状の溝15ができ、内面が凸状になってアダプタ
３と管体２とが完全に密着するとともに、フレアナット
２の締めつけにより、アダプタ３のフランジ13はその前
後のシール面５、９と完全に密着する。At this time, the outer periphery of the adapter 3 is strongly pressed by the arc-shaped projection 11 provided in the through hole 10 of the flare nut 2, and the adapter 3 and the inner pipe 14 are partially separated by the action. When the flare nut 2 is further tightened, a spiral groove 15 as shown in FIG. 3 is formed on the outer periphery of the adapter 3, and the inner surface becomes convex, so that the adapter 3 and the tube 2 are completely separated. The flange 13 of the adapter 3 comes into close contact with the front and rear sealing surfaces 5 and 9 by tightening the flare nut 2 as well as the close contact.
【００１２】[0012]
【発明の効果】以上説明したようなフレア接続具と、フ
レアナットと、アダプタとからなる接続装置を用いれ
ば、配管にフレア加工を施すことなく、容易かつ正確に
配管接続が行え、作業能率が向上するとともに冷媒漏れ
もなくなり、製品の品質向上にも貢献する。According to the above-described connecting device including the flare connecting device, the flare nut, and the adapter, the piping can be easily and accurately connected without performing flare processing on the piping, and the working efficiency is improved. This improves refrigerant leakage and contributes to improved product quality.
【図１】本発明による配管の接続装置の構成部材を示す
側面図である。FIG. 1 is a side view showing components of a pipe connection device according to the present invention.
【図２】本発明による配管の接続装置の組立説明図であ
る。FIG. 2 is an explanatory view of the assembly of the pipe connection device according to the present invention.
【図３】本発明による接続装置を用いた配管の最終接続
状態を示す側面図である。FIG. 3 is a side view showing a final connection state of piping using the connection device according to the present invention.
【図４】従来の配管の接続装置を示す側面図で、（Ａ）
図は管体にフレア加工を施す前の状態、（Ｂ）図は管体
にフレア加工を施した後の状態を示したものである。FIG. 4 is a side view showing a conventional pipe connection device, and FIG.
The figure shows a state before the tube body is subjected to flare processing, and the figure (B) shows a state after the tube body is subjected to flare processing.
１ フレア接続具 ２ フレアナット ３ アダプタ ４ 貫通孔 ５ シール面 ６ ネジ部 ７ 管体（配管） ８ ネジ部 ９ シール面 10 貫通孔 11 突起 12 管体（配管） 13 フランジ 14 管体 15 溝 DESCRIPTION OF SYMBOLS 1 Flare connection tool 2 Flare nut 3 Adapter 4 Through hole 5 Seal surface 6 Screw part 7 Pipe (Piping) 8 Screw part 9 Seal surface 10 Through hole 11 Projection 12 Pipe (Piping) 13 Flange 14 Pipe 15 Groove
Claims (2)
な大きさに形成し、その一側開口部周縁にシール面を形
成するとともに、外周にネジ部を形成し、他側の開口部
に一方の管体を接続するようにしてなるフレア接続具
と、内周面に前記フレア接続具のネジ部に対応するネジ
部を形成するとともに、ネジ部の奥に前記フレア接続具
のシール面に対向するシール面を形成し、かつ先端に前
記フレア接続具の貫通孔と同軸となる貫通孔を形成する
と共に、同貫通孔内に突起を設けてなるフレアナット
と、同フレアナットの貫通孔の内径より若干小径の管体
の一側に前記フレア接続具とフレアナットの両シール面
に挟まれるフランジを有し、前記フレアナットに挿通し
た他方の管体に被せ、前記フレア接続具とフレアナット
間に介在させるアダプタとからなることを特徴とする配
管の接続装置。An opening at both ends of a through hole is formed to have a size capable of inserting a tubular body, a sealing surface is formed on one side of the opening, a thread is formed on an outer periphery, and a screw is formed on the other side. A flare connecting device configured to connect one of the tubes to the opening, and a screw portion corresponding to the screw portion of the flare connecting device formed on the inner peripheral surface, and the flare connecting device is provided at the back of the screw portion. A flare nut having a seal surface facing the seal surface, and a through hole coaxial with the through hole of the flare connector at the end, and a projection provided in the through hole, and a flare nut. One side of the pipe having a diameter slightly smaller than the inner diameter of the through-hole has a flange sandwiched between the sealing surfaces of the flare nut and the flare nut, and covers the other pipe inserted through the flare nut, Adapter to be interposed between the flare nut And a pipe connection device.
１記載の配管の接続装置。2. The pipe connection device according to claim 1, wherein the projection is formed in an arc shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11233514A JP2001059663A (en) | 1999-08-20 | 1999-08-20 | Joint for piping |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11233514A JP2001059663A (en) | 1999-08-20 | 1999-08-20 | Joint for piping |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2001059663A true JP2001059663A (en) | 2001-03-06 |
Family
ID=16956232
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11233514A Pending JP2001059663A (en) | 1999-08-20 | 1999-08-20 | Joint for piping |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2001059663A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102192371A (en) * | 2011-04-22 | 2011-09-21 | 中国电力科学研究院 | Novel water cooling system joint |
| CN102364192A (en) * | 2011-10-28 | 2012-02-29 | 江苏宏丰奥凯机电有限公司 | Strengthening clamp for high pressure oil pipe |
| CN102953975A (en) * | 2011-08-31 | 2013-03-06 | 上海宝钢化工有限公司 | External pipeline connecting structure for metering pump |
| CN103372611A (en) * | 2012-04-18 | 2013-10-30 | 珠海格力电器股份有限公司 | Pipe fitting nut penetrating and punching riveting device |
| CN107314142A (en) * | 2016-04-26 | 2017-11-03 | 全球能源互联网研究院 | A kind of DC converter valve cooling water channel corrosion protection device for preventing leakage |
| CN108700484A (en) * | 2015-09-08 | 2018-10-23 | 机械解析有限公司 | Matable assembly for analyzing application |
-
1999
- 1999-08-20 JP JP11233514A patent/JP2001059663A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102192371A (en) * | 2011-04-22 | 2011-09-21 | 中国电力科学研究院 | Novel water cooling system joint |
| CN102953975A (en) * | 2011-08-31 | 2013-03-06 | 上海宝钢化工有限公司 | External pipeline connecting structure for metering pump |
| CN102364192A (en) * | 2011-10-28 | 2012-02-29 | 江苏宏丰奥凯机电有限公司 | Strengthening clamp for high pressure oil pipe |
| CN103372611A (en) * | 2012-04-18 | 2013-10-30 | 珠海格力电器股份有限公司 | Pipe fitting nut penetrating and punching riveting device |
| CN108700484A (en) * | 2015-09-08 | 2018-10-23 | 机械解析有限公司 | Matable assembly for analyzing application |
| CN108700484B (en) * | 2015-09-08 | 2020-05-26 | 机械解析有限公司 | Mating assembly for an analytical system |
| CN107314142A (en) * | 2016-04-26 | 2017-11-03 | 全球能源互联网研究院 | A kind of DC converter valve cooling water channel corrosion protection device for preventing leakage |
| CN107314142B (en) * | 2016-04-26 | 2024-03-19 | 全球能源互联网研究院 | Corrosion protection and leakage prevention device for cooling waterway of direct-current converter valve |
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