JP2868750B1 - Connection structure of branch pipe - Google Patents
Connection structure of branch pipeInfo
- Publication number
- JP2868750B1 JP2868750B1 JP10010258A JP1025898A JP2868750B1 JP 2868750 B1 JP2868750 B1 JP 2868750B1 JP 10010258 A JP10010258 A JP 10010258A JP 1025898 A JP1025898 A JP 1025898A JP 2868750 B1 JP2868750 B1 JP 2868750B1
- Authority
- JP
- Japan
- Prior art keywords
- pipe
- diameter
- tube
- branch pipe
- protruding
- 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 - Fee Related
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
- F16L41/00—Branching pipes; Joining pipes to walls
- F16L41/02—Branch units, e.g. made in one piece, welded, riveted
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Branch Pipes, Bends, And The Like (AREA)
Abstract
【要約】
【課題】 大口径の本管に小口径の分岐管を管継手を介
在する状態で接続する分岐管の接続構造に関するもの
で、本管に管継手を接続する作業の簡便化と、美観の向
上を図ると共に、信頼性の高い構造を提供することであ
る。
【解決手段】 本発明は、本管1の周面に設けた抜孔7
の周縁部を立ち上げて突出管6を形成し、突出管6に管
継手3の延長管4の一端部を被せ、突出管6の口径を広
げることによって、突出管6の外周面を延長管4の内周
面に密接した状態で接続してあることを特徴とする。Abstract: PROBLEM TO BE SOLVED: To provide a connection structure of a branch pipe for connecting a small-diameter branch pipe to a large-diameter main pipe with a pipe joint interposed therebetween. An object of the present invention is to improve the appearance and provide a highly reliable structure. SOLUTION: The present invention provides a hole 7 provided on a peripheral surface of a main pipe 1.
Is raised to form a protruding tube 6, the protruding tube 6 is covered with one end of the extension tube 4 of the pipe joint 3, and the outer diameter of the protruding tube 6 is extended by extending the diameter of the protruding tube 6. 4 is connected in close contact with the inner peripheral surface.
Description
【0001】[0001]
【発明の属する技術分野】本発明は、大口径の本管に小
口径の分岐管を接続する為に、両者の間に管継手を介在
する形態の分岐管の接続構造に関するもので、特に本管
と管継手の接続構造に関するものであり、具体的な使用
分野としては例えば本流用の水道管に、家庭に枝分れす
る支流用の分岐管を接続する為の構造が挙げられる。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a branch pipe connection structure in which a pipe joint is interposed between a large-diameter main pipe and a small-diameter branch pipe in order to connect the small-diameter branch pipe to the main pipe. The present invention relates to a connection structure between a pipe and a pipe joint, and a specific field of use is, for example, a structure for connecting a branch pipe for a branch branched to a home to a water pipe for a main stream.
【0002】[0002]
【従来の技術】大口径の本管に小口径の分岐管を接続す
る従来の手法としては、本管に抜孔を穿設し、その抜孔
の周縁部に管継手の端部を溶接することによって、本管
から側方に管継手を突設し、その管継手の先部に分岐管
を接続する技術が一般的に知られている。2. Description of the Related Art A conventional technique for connecting a small-diameter branch pipe to a large-diameter main pipe is to form a hole in the main pipe and weld an end of a pipe joint to the periphery of the hole. In general, a technique is known in which a pipe joint protrudes laterally from a main pipe and a branch pipe is connected to a tip of the pipe joint.
【0003】[0003]
【発明が解決しようとする課題】ところが従来の手法
は、液体、若しくは気体が本管と管継手の接続部分から
漏れないように、管継手の端部外周に沿ってくまなく溶
接しなけれならないので、時間がかかることは勿論、そ
の作業には相当な熟練度を要した。また、くまなく溶接
してあったとしても、溶接具合が全周に亘って均等であ
るとは限らず、それを行うにはさらに一段階上の熟練度
を要するものであり、信頼性の高い接続構造にすること
は困難であった。そのうえ、溶接加工には、溶接部分が
美観を損ねるという避けられない問題もあった。However, in the conventional method, welding must be performed all over the outer periphery of the end of the pipe joint so that liquid or gas does not leak from the connecting portion between the main pipe and the pipe joint. In addition to taking a long time, the work required considerable skill. Also, even if welding is performed all over, the welding condition is not always uniform over the entire circumference, and it requires a further level of skill to perform the welding, which is highly reliable. It was difficult to make a connection structure. In addition, the welding process has an unavoidable problem that the welded portion impairs aesthetics.
【0004】本発明は上記実情に鑑みて成されたもので
あり、その目的とするところは、本管に管継手を接続す
る作業の簡便化と、美観の向上を図ると共に、信頼性の
高い分岐管の接続構造を提供することである。The present invention has been made in view of the above circumstances, and aims at simplifying the operation of connecting a pipe joint to a main pipe, improving the aesthetic appearance, and achieving high reliability. An object of the present invention is to provide a connection structure for a branch pipe.
【0005】[0005]
【課題を解決するための手段】上記目的を解決する手段
として、本発明の分岐管の接続構造は、大口径の本管の
周面に抜孔を設け、工具を用いて抜孔の周縁部を立ち上
げることによって、本管から側方に突き出す形態の突出
管を形成し、突出管を管継手の延長管の一端部内に差し
込み、工具を用いて突出管の口径を押し広げることによ
って突出管の外周面を延長管の内周面に密接する状態で
接続したことを特徴とするもので、延長管に分岐管を直
接接続しても良いし、また、延長管と分岐管の間に管継
手の他の部品、例えばエルボ等を介在する状態で接続し
ても良い。管継手とは、複数本のパイプを接続する短い
部品の総称である。延長管とは、短く且つ直線的な管の
ことである。As a means for solving the above-mentioned problems, a connecting structure for a branch pipe according to the present invention is characterized in that a hole is formed in the peripheral surface of a large-diameter main pipe, and a peripheral portion of the hole is raised using a tool. By raising, a projecting tube is formed that projects laterally from the main tube.The projecting tube is inserted into one end of the extension tube of the fitting, and the diameter of the projecting tube is expanded by using a tool to expand the diameter of the projecting tube. The extension pipe is connected in close contact with the inner peripheral surface of the extension pipe, and a branch pipe may be directly connected to the extension pipe. The connection may be made with another component, for example, an elbow or the like interposed. A pipe joint is a general term for short parts that connect a plurality of pipes. An extension tube is a short and straight tube.
【0006】[0006]
【発明の実施の形態】本発明の分岐管の接続構造は図1
に示すように、大口径の本管1と、本管1より小口径の
分岐管2と、本管1と分岐管2の間に介在する管継手3
と、から構成される。管継手3は、本管1や分岐管2に
比べて遥かに短く且つ直線的な延長管4と、同様に短く
且つ屈曲したエルボ5とからなり、延長管4の一端部
を、本管1の周面から側方に突き出した突出管6に接続
し、延長管4の他端部にエルボ5の一端部を接続し、さ
らに、エルボ5の他端部を分岐管2に接続するものであ
る。なお、突出管6は本管1に比べて遥かに口径が小さ
いものとする。DESCRIPTION OF THE PREFERRED EMBODIMENTS The connection structure of a branch pipe according to the present invention is shown in FIG.
As shown in FIG. 1, a main pipe 1 having a large diameter, a branch pipe 2 having a smaller diameter than the main pipe 1, and a pipe joint 3 interposed between the main pipe 1 and the branch pipe 2.
And The pipe joint 3 is composed of an extension pipe 4 which is much shorter and straighter than the main pipe 1 and the branch pipe 2 and an elbow 5 which is also short and bent. One end of the extension pipe 4 is connected to the main pipe 1. Is connected to the protruding pipe 6 protruding laterally from the peripheral surface of the elbow 5, the other end of the extension pipe 4 is connected to one end of the elbow 5, and the other end of the elbow 5 is connected to the branch pipe 2. is there. The projecting tube 6 has a far smaller diameter than the main tube 1.
【0007】上記した分岐管の接続構造の組み立て手順
を以下に説明する。まず、図2に示すように、本管1の
周面の一部に、円形状の抜孔7を内部に連通する状態で
穿設する。次に、図3に示すように、エキスパンダ工具
8の先部を抜孔7の内側に挿入し、工具8の先部の外径
を広げて、その先部外周を抜孔7の内面に押し付け、さ
らに、工具8を上方に引き上げることによって、抜孔7
の周縁部を引き伸ばしつつ立ち上げ、図4に示すように
突出管6を形成する。なお、突出管6の立上がり高さが
不十分な場合は、この突出管6の形成作業を繰り返し行
う。その後、図5に示すように、突出管6に延長管4を
被せて、突出管6からわずかに離れた周囲を延長管4の
下部内側で取り囲むように配置し、さらに、工具3の先
部を延長管4の上方から突出管6の内部に挿入してエキ
スパンダ加工を用い、突出管6の口径を押し広げること
によって、突出管6の外周面を延長管4の内周面に密着
させる。最後に、図1に示すように、延長管4の上部外
周面に設けた雄ネジ9に、エルボ5の端部内周に備わる
雌ネジ10を捩じ込んで延長管4とエルボ5を接続し、
さらに、同様にしてエルボ5の他端部に分岐管2を接続
する。The procedure for assembling the above-described branch pipe connection structure will be described below. First, as shown in FIG. 2, a circular hole 7 is bored in a part of the peripheral surface of the main pipe 1 so as to communicate with the inside. Next, as shown in FIG. 3, the tip of the expander tool 8 is inserted into the hole 7, the outer diameter of the tip of the tool 8 is increased, and the outer periphery of the tip is pressed against the inner surface of the hole 7. Further, by pulling the tool 8 upward, the hole 7 is removed.
Is raised while stretching the peripheral portion of the tube to form a projecting tube 6 as shown in FIG. When the rising height of the protruding tube 6 is insufficient, the forming operation of the protruding tube 6 is repeated. Thereafter, as shown in FIG. 5, the extension pipe 4 is put on the protruding pipe 6 so as to surround a part slightly away from the protruding pipe 6 inside the lower part of the extension pipe 4. Is inserted into the protruding tube 6 from above the extension tube 4 and the diameter of the protruding tube 6 is expanded by using expander processing, so that the outer peripheral surface of the protruding tube 6 is brought into close contact with the inner peripheral surface of the extension tube 4. . Finally, as shown in FIG. 1, a female screw 10 provided on the inner periphery of the end of the elbow 5 is screwed into a male screw 9 provided on the upper outer peripheral surface of the extension tube 4 to connect the extension tube 4 and the elbow 5. ,
Further, the branch pipe 2 is connected to the other end of the elbow 5 in the same manner.
【0008】ところで、上記組み立てを行う為には、延
長管4は工具8を使用できる程度の長さと直線的な形状
が必要であり、また、本管1は工具8によって変形可能
な程度の柔軟な金属素材を使用することが必要である。In order to assemble the above, the extension tube 4 needs to be long enough to use the tool 8 and have a linear shape, and the main tube 1 is flexible enough to be deformable by the tool 8. It is necessary to use a suitable metal material.
【0009】なお、本発明は上記実施形態に限定される
ものではなく、例えば管継手3を延長管4と、二股に枝
分れしたY字管で構成し、Y字管の両先部に分岐管2を
夫々接続しても良い。The present invention is not limited to the above embodiment. For example, the pipe joint 3 is composed of an extension pipe 4 and a Y-shaped pipe branched into two branches, and is provided at both ends of the Y-shaped pipe. The branch pipes 2 may be connected respectively.
【0010】[0010]
【発明の効果】本発明の分岐管の接続構造は、本管の抜
孔の周縁部を立ち上げて形成した突出管の口径を押し広
げるだけで、突出管の外周面を管継手の延長管の内周面
に密接する状態で接続できる構造なので、その接続作業
は簡便に行え、それによって、本管に分岐管を延長管を
介在する状態で接続する全体の作業が容易且つ迅速に行
える。また、突出管と管継手との密接具合は、どの箇所
においても均等なので、本管と管継手は理想的な状態で
接続されており、その結果、信頼性の高い接続構造とな
っている。さらに、従来のように溶接加工を用いていな
いので、延長管と本管との接続部分の美観が向上する。The connection structure of a branch pipe according to the present invention is such that the outer peripheral surface of the protruding pipe is extended only by pushing up the diameter of the protruding pipe formed by raising the peripheral portion of the hole of the main pipe. Since the structure is such that the connection can be made in close contact with the inner peripheral surface, the connection operation can be performed easily, and thereby the whole operation of connecting the branch pipe to the main pipe with the extension pipe interposed can be performed easily and quickly. In addition, since the degree of close contact between the protruding pipe and the pipe joint is uniform at any point, the main pipe and the pipe joint are connected in an ideal state, and as a result, a highly reliable connection structure is obtained. Further, since welding is not used unlike the conventional case, the beauty of the connection between the extension pipe and the main pipe is improved.
【図1】本発明の分岐管の接続構造の典型的な一例を示
した一部切欠正面図である。FIG. 1 is a partially cutaway front view showing a typical example of a branch pipe connection structure of the present invention.
【図2】本管に抜孔を形成した状態を示す斜視図であ
る。FIG. 2 is a perspective view showing a state in which a hole is formed in the main pipe.
【図3】抜孔の周縁部を立ち上げる作業を示す要部拡大
正面図である。FIG. 3 is an enlarged front view of an essential part showing an operation of erecting a peripheral portion of a hole.
【図4】抜孔の周縁部を立ち上げて突出管を設けた状態
を示す要部拡大正面図である。FIG. 4 is an enlarged front view of a main part showing a state where a peripheral portion of the hole is raised and a protruding tube is provided.
【図5】突出管に管継手の延長管を接続する作業を示す
要部拡大正面図である。FIG. 5 is an enlarged front view of a main part showing an operation of connecting an extension pipe of a pipe joint to a protruding pipe.
【図6】突出管に延長管を接続した状態を示す要部拡大
正面図である。FIG. 6 is an enlarged front view of a main part showing a state where an extension pipe is connected to a protruding pipe.
1 本管 2 分岐管 3 管継手 4 延長管 6 突出管 7 抜孔 DESCRIPTION OF SYMBOLS 1 Main pipe 2 Branch pipe 3 Fitting 4 Extension pipe 6 Projection pipe 7 Extraction hole
Claims (1)
(2)を管継手(3)を介在する状態で接続する分岐管
の接続構造において、 本管(1)の周面に設けた抜孔(7)の周縁部を立ち上
げて突出管(6)を形成し、突出管(6)に管継手
(3)の延長管(4)の一端部を被せ、突出管(6)の
口径を広げることによって、突出管(6)の外周面を延
長管(4)の内周面に密接した状態で接続してあること
を特徴とする分岐管の接続構造。1. A branch pipe connection structure for connecting a small-diameter branch pipe (2) to a large-diameter main pipe (1) with a pipe joint (3) interposed therebetween, wherein a peripheral surface of the main pipe (1) is provided. The protruding pipe (6) is formed by raising the periphery of the hole (7) provided in the pipe, and the protruding pipe (6) is covered with one end of the extension pipe (4) of the pipe joint (3). A) connecting the outer peripheral surface of the protruding tube (6) in close contact with the inner peripheral surface of the extension tube (4) by increasing the diameter of the branch pipe;
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10010258A JP2868750B1 (en) | 1998-01-22 | 1998-01-22 | Connection structure of branch pipe |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10010258A JP2868750B1 (en) | 1998-01-22 | 1998-01-22 | Connection structure of branch pipe |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2868750B1 true JP2868750B1 (en) | 1999-03-10 |
JPH11210972A JPH11210972A (en) | 1999-08-06 |
Family
ID=11745303
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10010258A Expired - Fee Related JP2868750B1 (en) | 1998-01-22 | 1998-01-22 | Connection structure of branch pipe |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2868750B1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103075599A (en) * | 2012-12-25 | 2013-05-01 | 上海世德子汽车零部件有限公司 | Cooling water pipe and cooling system containing same |
WO2014119342A1 (en) | 2013-02-01 | 2014-08-07 | オリンパス株式会社 | Member-joining method, joined member structure, and joint tube |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4721267B2 (en) * | 2005-06-30 | 2011-07-13 | タキロン株式会社 | Merged pipe structure using merged pipe joint |
-
1998
- 1998-01-22 JP JP10010258A patent/JP2868750B1/en not_active Expired - Fee Related
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103075599A (en) * | 2012-12-25 | 2013-05-01 | 上海世德子汽车零部件有限公司 | Cooling water pipe and cooling system containing same |
WO2014119342A1 (en) | 2013-02-01 | 2014-08-07 | オリンパス株式会社 | Member-joining method, joined member structure, and joint tube |
Also Published As
Publication number | Publication date |
---|---|
JPH11210972A (en) | 1999-08-06 |
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