JPS6052355B2 - Flange fitting for corrugated metal pipe - Google Patents

Flange fitting for corrugated metal pipe

Info

Publication number
JPS6052355B2
JPS6052355B2 JP15317675A JP15317675A JPS6052355B2 JP S6052355 B2 JPS6052355 B2 JP S6052355B2 JP 15317675 A JP15317675 A JP 15317675A JP 15317675 A JP15317675 A JP 15317675A JP S6052355 B2 JPS6052355 B2 JP S6052355B2
Authority
JP
Japan
Prior art keywords
flange
inner tube
tube
corrugated metal
hole
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
Application number
JP15317675A
Other languages
Japanese (ja)
Other versions
JPS5235318A (en
Inventor
ルデイガー・シユヴエンケ
ハートムツト・クルガー
ゲルト・モザー
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.)
KAABERU UNTO METARUERUKE GUUTEHOFUNUNKUSUHYUUTE AG
Original Assignee
KAABERU UNTO METARUERUKE GUUTEHOFUNUNKUSUHYUUTE AG
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 KAABERU UNTO METARUERUKE GUUTEHOFUNUNKUSUHYUUTE AG filed Critical KAABERU UNTO METARUERUKE GUUTEHOFUNUNKUSUHYUUTE AG
Publication of JPS5235318A publication Critical patent/JPS5235318A/en
Publication of JPS6052355B2 publication Critical patent/JPS6052355B2/en
Expired legal-status Critical Current

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
    • F16L59/00—Thermal insulation in general
    • F16L59/14—Arrangements for the insulation of pipes or pipe systems
    • F16L59/16—Arrangements specially adapted to local requirements at flanges, junctions, valves or the like
    • F16L59/18—Arrangements specially adapted to local requirements at flanges, junctions, valves or the like adapted for joints
    • F16L59/187—Arrangements for connecting hoses to one another, to flexible sleeves or to rigid members
    • 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
    • F16L33/00—Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses
    • F16L33/01—Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses adapted for hoses having a multi-layer wall
    • 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
    • F16L59/00—Thermal insulation in general
    • F16L59/14—Arrangements for the insulation of pipes or pipe systems
    • F16L59/16—Arrangements specially adapted to local requirements at flanges, junctions, valves or the like
    • F16L59/18—Arrangements specially adapted to local requirements at flanges, junctions, valves or the like adapted for joints

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Insulation (AREA)
  • Quick-Acting Or Multi-Walled Pipe Joints (AREA)
  • Joints With Sleeves (AREA)
  • Flanged Joints, Insulating Joints, And Other Joints (AREA)

Description

【発明の詳細な説明】 本発明は、２個の同心の波形金属管と該金属管の間に
ある発泡プラスチック層よりなる導管の外側らせん波形
管にねじ付円筒部を具備するフランジがねじ込んであり
、このフランジが内管の直径にほぼ相当する貫通孔を有
する、上記導管のためのフランジ継手に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention comprises a conduit comprising two concentric corrugated metal tubes and a foamed plastic layer between the metal tubes, in which a flange having a threaded cylindrical portion is screwed onto the outer helical corrugated tube. The present invention relates to a flange joint for the above-mentioned conduit, the flange having a through hole approximately corresponding to the diameter of the inner tube.

波形管の結合技術は管の幾何形状の関係上、多大の困
難をきたす。The technique of joining corrugated tubes presents many difficulties due to the geometry of the tubes.

なぜなら特に波形内管および外管を有する導管をフラン
ジで水密に、かつ力を 伝達するように結合しなければ
ならない時は、管に完全な密閉面を得ることが容易でな
いからである。 外管の中にねじ付フランジをねじ込み
、該フランジが内部に、内管の上にねじ込んだねじ付ブ
シユを収容することによつて、上記の導管を継手で結合
することは既に公知である。This is because it is not easy to obtain a perfect sealing surface on the tubes, especially when conduits with corrugated inner tubes and outer tubes have to be joined at flanges in a water-tight and force-transmitting manner. It is already known to connect such conduits with a coupling by screwing a threaded flange into the outer tube, which flange accommodates inside a threaded bushing screwed onto the inner tube.

内管を数個のねじピッチだけブシユから突出させ、次に
突出する管端をブシユに絞り込むことによつて、内管に
対する密閉面が作られる。次に密閉面に凹凸がある時は
、軟ろうでこれを埋める。この継手ではステンレス鋼製
の管の絞り部分の区域のギャップに腐食が促進されるの
が欠点である。しかも内管と外管の間の密閉がまことに
困難であるから、発泡プ・ラスチツク断熱物に湿気が入
り込むことがある。 別のフランジ継手においては、結
合部の区域で内管の波形を本出願人製の商品名「Ａｕｔ
ｏｍａＳＳ−２５」や「ＡｕｔｏｍａＳＥ−２６」のよ
うな公知の転任装置によつて圧遺し、真直に転圧した管
の上にパツキン輪を嵌着し、これをリング状切欠き内に
挿入する方法で問題を解決する。この際パツキン輪の切
欠きからの飛出しを防止するために切欠きにワイヤーリ
ングを設ける。継手をボルト締めすると切欠き、ワイヤ
ーリング及び管の壁面にパツキン輪がしつかりと押付け
られ、こうしてあらゆる通路を遮断することによつて、
水、圧縮空気等に対する継手の内外の密閉性が得られる
。大きな組立費がこの継手の欠点と見られる。またこの
継手は、大きな長手方向の力を吸収するのに適さない（
ドイツ実用新案第７２１０１４８号）。本発明の根底に
あるのは、高い内圧においても絶対に密であり、内管の
大きな長手方向の力を吸収することにも適するフランジ
継手を示す問題である。この問題は、冒頭に述べた種類
のフランジ継手において例えば銅製の内管の端部を、内
管より硬い材質の例えば鋼製のフランジの孔の壁面に圧
着することによつて解決される。A sealing surface for the inner tube is created by protruding the inner tube from the bushing by several thread pitches and then squeezing the protruding tube end into the bushing. Next, if there are any irregularities on the sealing surface, fill them with soft wax. A disadvantage of this coupling is that corrosion is accelerated in the gap in the region of the constriction of the stainless steel tube. Moreover, the sealing between the inner and outer tubes is very difficult, so moisture can get into the foam plastic insulation. In another flange joint, the corrugation of the inner tube in the area of the joint is made by the applicant under the trade name "Aut"
A method in which a packing ring is fitted onto a pipe that has been compressed straight and compressed using a known transfer device such as ``omaSS-25'' or ``AutomaSE-26,'' and this is inserted into a ring-shaped notch. solve the problem. At this time, a wire ring is provided in the notch to prevent the packing ring from coming out of the notch. When the fitting is bolted, the seal ring presses firmly against the wall of the notch, wire ring, and tube, thus blocking all passages.
The joint can be sealed internally and externally against water, compressed air, etc. High assembly costs appear to be a drawback of this coupling. This fitting is also not suitable for absorbing large longitudinal forces (
German Utility Model No. 7210148). The invention is based on the problem of showing a flange joint that is absolutely tight even at high internal pressures and is also suitable for absorbing large longitudinal forces of the inner tube. This problem is solved in flange joints of the type mentioned at the outset by crimping the end of the inner tube, for example made of copper, onto the wall of the bore of the flange, which is made of a harder material than the inner tube, for example made of steel.

このフランジ継手は取外し不能てあるが、しかし高い押
圧力によりギヤツプを除くことによつて、ギヤツプの腐
食の恐れが防止される、という利点がある。本発明の別
の着想によれば、フランジの孔の中に孔の外周方向に通
る少なくとも１個、好ましくは３個の圧着溝を設ける。This flange joint is non-removable, but has the advantage that by removing the gap with a high pressure force, the risk of corrosion of the gap is prevented. According to another concept of the invention, at least one, preferably three, crimp grooves are provided in the bore of the flange, which run in the direction of the outer circumference of the bore.

この圧着溝の中に管の材料が固く圧入されるから、内管
とフランジの固着が生じ、外管と内管の間に摩擦結合を
成立させる。フランジ継手または同様に準備された導管
端部に接続するために、フランジをボルトで互いにねじ
止めすることができ、その際フランジの間に．パツキン
を設けることができる。しかし内管の中に結合ブシユを
配設し、これを内管の内面に圧着するのが特に適当であ
ることが判明した。この結合ブシユに次に、元来公知の
ことであるが、同様の直径の管片を溶接またはろう付け
することがで．きる。結合ブシユと内管の間の密閉を改
善し、力の伝達を増大するために、内管と接触する結合
ブシユの表面に外周方向に通るくぼみおよび（または）
***を配設すると良い。こうしてたとえば結合ブシユは
その外面に細かなねじ、または外周方一向に通る溝また
は突起を具備することができる。本発明を第１図ないし
第３図に概略図により示した実施例にもとづいて詳述す
る。同種の管または継手または分岐片と結合される管は
例えば銅のような軟かい材料の金属製波形金属内管１、
波形金属外管２、管１および２の間に配設された発泡プ
ラスチツク層３、外管２の上に取付けられた防食層４な
らびにたとえばポリエチレン製の外被５よりなる。Since the material of the tube is firmly press-fitted into the crimp groove, the inner tube and the flange are stuck together, and a frictional connection is established between the outer tube and the inner tube. To connect to a flange fitting or a similarly prepared conduit end, the flanges can be screwed together with bolts, with a. A packing can be provided. However, it has been found to be particularly suitable to arrange a connecting bush in the inner tube and to press it onto the inner surface of the inner tube. This coupling bushing can then be welded or brazed with a tube piece of similar diameter, as is known per se. Wear. In order to improve the sealing between the coupling bushing and the inner tube and increase the transmission of forces, the surface of the coupling bushing in contact with the inner tube may have a recess and/or
It is good to place a bump. Thus, for example, the coupling bushing can be provided with a fine thread on its outer surface, or a groove or projection running along the outer circumference. The present invention will be explained in detail based on an embodiment shown schematically in FIGS. 1 to 3. FIG. The tube to be connected with the same type of tube or joint or branch piece is, for example, a corrugated metal inner tube 1 made of metal of soft material such as copper;
It consists of a corrugated metal outer tube 2, a foamed plastic layer 3 arranged between the tubes 1 and 2, a corrosion protection layer 4 applied to the outer tube 2, and a jacket 5 made of polyethylene, for example.

上記の導管はドイツ公開公報第１５２５６５８号で公知
である。準備としてます外管２を防食層４、外被５と共
に剥し、管１および２の間の発泡プラスチツク層３を所
定の長さにわたつて除去する。次に外管２・の中に前記
内管１より硬い材料例えば鋼製のフランジ６を円筒部７
の上につけた粗ねじ８によつてねじ込む。フランジ６の
孔９は、内管１の波の山が孔９の壁面に接するように、
選定しなければならない。次に内管１の中に既に上記し
た市販されている公知の転圧装置を挿入し、内管１の波
形を圧遺し、平滑に転圧した内管１の端部を管の壁面９
に圧着する。この転圧装置による圧着の際、転圧装置に
より発生する押圧力によつて内管の材料は半径方向にも
軸方向にも流れて、フランジ６の孔９内の微小孔や平担
でない部分に入り込み、内管１とフランジ６とが圧着さ
れる。フランジ６への内管１の圧着が終了した後、結合
ブシユ１０を挿入し（第１図、第３図）、更に上記した
転圧装置を挿入してやはり内管１の壁面に圧着する。こ
の結合ブシユ１０に次に曲り管片か直線管片１１をろう
付けまたは溶接することができる。外部から外管２と内
管１の間の環状室への湿気の侵入を防止するために、適
当なゴム弾性材料よりなるカラー１２が設けてあり、締
め輪１３でフランジ６とプラスチツク外被５の上に固定
されている。The abovementioned conduit is known from DE 15 25 658 A1. In preparation, the outer tube 2 is peeled off together with the anticorrosive layer 4 and the jacket 5, and the foamed plastic layer 3 between the tubes 1 and 2 is removed over a predetermined length. Next, a flange 6 made of a material harder than the inner tube 1, for example, steel, is inserted into the outer tube 2 into the cylindrical portion 7.
Screw in using the coarse screw 8 attached to the top. The hole 9 of the flange 6 is formed so that the crest of the wave of the inner tube 1 is in contact with the wall surface of the hole 9.
must be selected. Next, the above-mentioned commercially available known rolling device is inserted into the inner tube 1, the corrugated shape of the inner tube 1 is left behind, and the smooth rolled end of the inner tube 1 is inserted into the tube wall surface 9.
Crimp. During crimping by this rolling device, the material of the inner tube flows in both the radial and axial directions due to the pressing force generated by the rolling device, causing the material in the inner tube to flow in the micro holes in the hole 9 of the flange 6 and in areas that are not flat. The inner tube 1 and the flange 6 are crimped together. After the inner tube 1 is crimped onto the flange 6, the coupling bush 10 is inserted (FIGS. 1 and 3), and the above-mentioned rolling device is further inserted and crimped onto the wall surface of the inner tube 1. A curved or straight tube section 11 can then be soldered or welded to this coupling bushing 10. In order to prevent the ingress of moisture from the outside into the annular chamber between the outer tube 2 and the inner tube 1, a collar 12 made of a suitable rubber-elastic material is provided, with a tightening ring 13 connecting the flange 6 and the plastic jacket 5. is fixed on top.

第２図には別の結合法が概略図て示してある。FIG. 2 schematically shows an alternative coupling method.

この場合はフランジ６の孔９の中に補助的に３個の圧着
溝１４を設け、転圧工程の際に内管１の流れる材料がこ
の圧着溝１４に入り込み、こうしてフランジの孔９への
内管１の改善された固着を保証させる。ここに図示する
、準備された導管端部を管片１１に接続するためにフラ
ンジ１５が使用され、止ボルト１６によつてフランジ６
に緊定される。フランジ１５および６の間にパツキン１
７、たとえば隔室に封入した鉛パツキン１７が配設され
ている。止ボルト１６はフランジ１５の孔１８に貫挿さ
れ、フランジ６の当該のねじ孔１９にねじ込まれる。こ
の操作の完了の後に、管片１１とフランジ１５を参照番
号２０の所に図示するように、溶接またははんだ付けす
る。結合ブシユ１０が環状突起２１を有し、この突起２
１が圧着溝１４に係合し、こうして特に密な摩擦係合を
生じさせるフランジ継手を第３図に図示する。In this case, three auxiliary crimp grooves 14 are provided in the hole 9 of the flange 6, so that during the compaction process, the flowing material of the inner tube 1 enters the crimp groove 14, and thus the material flows into the hole 9 of the flange. This ensures improved fixation of the inner tube 1. A flange 15 is used to connect the prepared conduit end to the tube piece 11, shown here, and is secured to the flange 6 by means of a stop bolt 16.
It will be tightened. Packing 1 between flanges 15 and 6
7. For example, a lead gasket 17 sealed in a compartment is disposed. The stop bolt 16 is inserted through the hole 18 of the flange 15 and screwed into the corresponding threaded hole 19 of the flange 6. After completion of this operation, the tube piece 11 and the flange 15 are welded or soldered together as shown at 20. The coupling bushing 10 has an annular projection 21, and this projection 2
A flange joint is illustrated in FIG. 3 which engages the crimp groove 14, thus creating a particularly tight frictional engagement.

この実施形は大きな内径に対して特に好適である。本発
明の重要な利点は、完全に密閉し、高い張力を吸収する
ことがてきる、波形管用の取外し不能な機械的フランジ
継手を今や開発することができたこと１こ認められる。This embodiment is particularly suitable for large internal diameters. An important advantage of the present invention is that it has now been possible to develop a non-removable mechanical flange joint for corrugated pipes that is completely sealed and capable of absorbing high tension forces.

押圧力が高いので、ギヤツプ腐食の恐れをもたらすギヤ
ツプが生じない。本発明による継手はすべての金属、特
に銅や特殊鋼に適している。本発明の実施の態様は次の
通りである。Due to the high pressing force, gaps do not form which could lead to gap corrosion. The joint according to the invention is suitable for all metals, especially copper and special steel. The embodiments of the present invention are as follows.

（１）孔９の中にこの孔９の外周方向に通る少なくとも
１個、好ましくは３個の圧着溝１４が設けてあることを
特徴とする特許請求の範囲に記載のフランジ継手。(1) A flange joint according to the claims, characterized in that at least one, preferably three, crimp grooves 14 are provided in the hole 9 and extend along the outer circumference of the hole 9.

（２）内管１の中に結合ブシユ１０が配設してあり、内
管１の内面に圧着されていることを特徴とする特許請求
の範囲および上記第（１）項に記載のフランジ継手。(2) The flange joint according to the claims and item (1) above, characterized in that the coupling bush 10 is disposed in the inner tube 1 and is crimped to the inner surface of the inner tube 1. .

（３）内管１と接触する結合ブシユ１０の表面に、外周
方向に走るくぼみおよび（または）***２１が配設され
ていることを特徴とする上記第（２）項によるフランジ
継手。(3) The flange joint according to item (2) above, characterized in that the surface of the coupling bushing 10 in contact with the inner tube 1 is provided with a recess and/or a protuberance 21 running in the outer circumferential direction.

【図面の簡単な説明】 第１図は本発明によるフランジ継手の一部切断した側面
概略図、第２図は別の実施形の第１図と同様の概略図、
第３図はもう一つの実施形の同様の概略図である。 １・・・・・・内管、９・・・・・・フランジの孔。[BRIEF DESCRIPTION OF THE DRAWINGS] FIG. 1 is a partially cutaway schematic side view of a flange joint according to the present invention, FIG. 2 is a schematic diagram similar to FIG. 1 of another embodiment,
FIG. 3 is a similar schematic diagram of another embodiment. 1...Inner pipe, 9...Flange hole.

Claims (1)

【特許請求の範囲】[Claims] １ ２個の同心の波形金属管と該金属管の間にある発泡
プラスチック層とよりなる導管の波形金属外管にねじ込
むねじ付円筒部及び、波形金属内管の直径にほぼ相当す
る貫通孔とを有する、上記導管のためのフランジ継手に
おいて、内管１の端部を、転圧装置により平滑として内
管の材料より硬いフランジ６の孔９の壁面に圧着させる
ことを特徴とするフランジ継手。1. A threaded cylindrical part screwed into the corrugated metal outer tube of a conduit consisting of two concentric corrugated metal tubes and a foamed plastic layer between the metal tubes, and a through hole approximately corresponding to the diameter of the corrugated metal inner tube. A flange joint for a conduit as described above, characterized in that the end of the inner pipe 1 is smoothed and crimped onto the wall surface of the hole 9 of the flange 6, which is harder than the material of the inner pipe, using a rolling device.
JP15317675A 1975-09-11 1975-12-22 Flange fitting for corrugated metal pipe Expired JPS6052355B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19757528733 DE7528733U (en) 1975-09-11 1975-09-11 FLANGE CONNECTION FOR CORRUGATED METAL PIPES
DE7528733.1 1975-09-11

Publications (2)

Publication Number Publication Date
JPS5235318A JPS5235318A (en) 1977-03-17
JPS6052355B2 true JPS6052355B2 (en) 1985-11-19

Family

ID=6655472

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15317675A Expired JPS6052355B2 (en) 1975-09-11 1975-12-22 Flange fitting for corrugated metal pipe

Country Status (3)

Country Link
JP (1) JPS6052355B2 (en)
CH (1) CH589249A5 (en)
DE (1) DE7528733U (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5738852B2 (en) * 1971-12-20 1982-08-18
JPS54111120A (en) * 1978-02-20 1979-08-31 Nippon Kokan Kk <Nkk> Method of detecting leakage site in double-pipe system pipe line and sphere
DE3541113A1 (en) * 1985-11-21 1987-05-27 Kabelmetal Electro Gmbh Method for the attachment of a smooth part to the end of a deeply corrugated tube
AU636419B2 (en) * 1990-06-25 1993-04-29 Iplex Pipelines Australia Pty Limited Pipe fitting
DE29518712U1 (en) 1995-11-25 1996-01-25 BRUGG Rohrsysteme GmbH, 31515 Wunstorf Arrangement for connecting the end of a helically corrugated metal tube to a connector
DE20113861U1 (en) 2001-08-22 2002-01-24 Brugg Rohrsysteme Gmbh Connection between the end of a helically corrugated metal tube with a connector
DE20302022U1 (en) * 2003-02-08 2003-04-30 Brugg Rohrsysteme Gmbh Flameless connection
DE10310938A1 (en) 2003-03-13 2004-09-23 Brugg Rohr Ag, Holding Method of making a connection between a corrugated pipe and a connector
DE102014105555A1 (en) 2014-04-17 2015-10-22 Brugg Rohr Ag, Holding Connection for corrugated pipes

Also Published As

Publication number Publication date
DE7528733U (en) 1976-01-02
JPS5235318A (en) 1977-03-17
CH589249A5 (en) 1977-06-30

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