CN1078330C - 管接头 - Google Patents

管接头 Download PDF

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Publication number
CN1078330C
CN1078330C CN97196735A CN97196735A CN1078330C CN 1078330 C CN1078330 C CN 1078330C CN 97196735 A CN97196735 A CN 97196735A CN 97196735 A CN97196735 A CN 97196735A CN 1078330 C CN1078330 C CN 1078330C
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China
Prior art keywords
press
conduit
pipe joint
pipe fitting
pipe
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Expired - Fee Related
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CN97196735A
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CN1226310A (zh
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赖纳·弗兰策
赫伯特·弗尔因
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Vodafone GmbH
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Mannesmann AG
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    • 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
    • F16L13/00—Non-disconnectible pipe-joints, e.g. soldered, adhesive or caulked joints
    • F16L13/14—Non-disconnectible pipe-joints, e.g. soldered, adhesive or caulked joints made by plastically deforming the material of the pipe, e.g. by flanging, rolling
    • 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
    • F16L13/00—Non-disconnectible pipe-joints, e.g. soldered, adhesive or caulked joints
    • F16L13/14—Non-disconnectible pipe-joints, e.g. soldered, adhesive or caulked joints made by plastically deforming the material of the pipe, e.g. by flanging, rolling
    • F16L13/141—Non-disconnectible pipe-joints, e.g. soldered, adhesive or caulked joints made by plastically deforming the material of the pipe, e.g. by flanging, rolling by crimping or rolling from the outside
    • F16L13/142—Non-disconnectible pipe-joints, e.g. soldered, adhesive or caulked joints made by plastically deforming the material of the pipe, e.g. by flanging, rolling by crimping or rolling from the outside with a sealing element inserted into the female part before crimping or rolling
    • 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
    • F16L37/00—Couplings of the quick-acting type
    • F16L37/08—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members
    • F16L37/084—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking
    • F16L37/091—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking by means of a ring provided with teeth or fingers

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Quick-Acting Or Multi-Walled Pipe Joints (AREA)
  • Non-Disconnectible Joints And Screw-Threaded Joints (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Branch Pipes, Bends, And The Like (AREA)
  • Protection Of Pipes Against Damage, Friction, And Corrosion (AREA)
  • Mechanical Coupling Of Light Guides (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)

Abstract

一种管接头是由一个压装管配件(1)构成的，所述压装管配件具有至少一个横截面内成凸起状地装有一个密封圈(3)的压装管配件部和一个与之相连的圆柱形压装管配件部(4)，所述的压装管配件部在延伸端配有一个构成一个止动部的卷边形凹部(6)。一个导管(5)在***压装管配件后通过平整端部抵靠在压装管配件的内止动部上，借助一个环绕压装管配件的且具有至少两个开口压模的挤压机并在合拢开口压模之后形成了一个不可拆卸的密封管接头，其中开口压模在挤压时不仅作用于包括装在其中的密封圈在内的环形凸起上，它们还作用于圆柱形压装管配件部上。在开口压模的作用范围外的压装管配件的导管插接区内开设有一个尽可能防止***导管轴向后退的部件，所述部件的内部净宽度在不受力的状态下小于符合公差要求的最小***导管外径。

Description

管接头
本发明涉及一种如权利要求1前序所述的且由一个压装管配件和一个与其相连的导管构成的管接头。
具有一个环绕平整管端的管配件的上述类型管接头是众所周知的(见《曼内斯曼压装管配件有限公司》价目单摘录，8/1994)，在压装管配件的凸起形端部中总是装有一个密封圈，其中借助一个与操纵装置相连的且带有铰接安装的开口压模的可换式夹持装置使凸起形端部、相邻的圆柱形管配件部和管子一起塑性变形并使***的密封圈弹性变形。管接头的密封功能是如此实现的，即通过凸起形端部的塑性变形使密封圈弹性变形，并且密封圈在预定的横截面外周部上线形抵靠在环绕密封圈的管配件凸起形端部的表面区和管表面区上。为了承受在相应内压力下出现的纵向力，使与凸起形端部相邻的圆柱形区同管子一起塑性变形。当挤压时，凸起形端部以及相邻的圆柱形区借助操纵装置同时变形。可以从价目单P13～P14上知道，正确的导管插接长度对牢固的压装联接是很重要的。“正确插接长度”在这里意味着，应该在挤压前使导管略微转动并同时一直沿轴向将导管压到由压装管配件的卷边形凹部构成的止动部上地***导管。与此同时，先前在导管上作出的标记用作校验标记。在一个安装位置上，根据实用的装配顺序而不总是逐步地实现导管铺设，即不是按照测量、切断、去毛刺、插接和挤压的顺序进行装配，而是同时测量和插接许多根待连接的导管段并随后挤压所有的联接位置。但在此工作方式中仍然无法消除这种现象，即尤其是在空间狭窄情况下测量不够准确并可能使可能切得太短的导管无法再完全***一个或两个压装管配件中，或者在一个位置上校准导管后，已经***的导管又从压装管配件中抽出一段。当不可能从外面看到导管退出时，仍然进行了挤压。根据导管退出情况，这样的无规则挤压位置由于导管移动而随后可能造成丧失密封性或可能造成管联接结构松动。
本发明的任务在于提出一种上述类型的管接头，其中只有在使用强力的情况下才能使***管接头中的切断导管退出来。
上述任务是通过在权利要求1特征部分中给出的技术特征完成的。有利的改进方案是从属权利要求的内容。
本发明的关键在于，在压装管配件的导管插接区内设置了一个防止***导管退出的部件。此部件可以是一个由弹性材料制成的环或者是一个由金属材料或由金属-塑料复合材料制成的环形弹性件。人们也把这种环称为“卡环”。卡环有利地具有一个向内伸出的触头。为了并非不必要地使导管***变得复杂，触头在插接方向上是略微倾斜的。但在任何情况下，环、触头或弹性件的内部净宽度在不受力的情况下都小于符合公差要求的最小***导管外径。当在开口压模作用区外的圆柱形压装管配件部内将一个环形凹槽开设于内侧面上时，这对设置卡环或环形弹性件是有利的。所述凹槽可以开设于环形凸起和开口压模作用区之间。凹槽最好由一个向外伸出的圆缘构成。
在设置卡环时如此进行装配，即在制造压装管配件的过程中同时形成上述圆缘。除了密封圈外，还将卡接件放入由圆缘构成的环形凹槽中。在测算出待连接导管所需的长度后并在除去端面毛刺后，将导管端部一直***压装管配件中，直到装配工人明显感觉到端面已经克服了卡接件的阻力并其到达在压装管配件中的插接极限位置为止。在这种情况下产生了一种近似嵌接的效果。几乎消除了不希望出现的导管退出现象，除非此时使用了很大的力，才能抽出导管。
本发明布局的优点在于，装配工人利用近似嵌接的效果而与标记无关地用手帮助确保了所需的最小插接深度，而且导管例如在校准管路时不可能无意识地退出。无论在什么情况下，卡接件都设置在开口压模和止动圆缘之间，这还带来了以下副作用，即尽可能封住了在压装管配件内侧面和***导管外侧面间的小缝隙。
在图中，结合一个实施例详细示出了本发明的管接头，其中：
图1是挤压前的管接头的半侧纵截面图。
图1以半侧纵截面图示出了一个挤压前的管接头。本身公知的管接头是由一个压装管配件1构成的，此压装管配件在开口端具有一个环形凸起2，一个密封圈3安装在所述凸起内。一个圆柱形压装管配件部4与凸起2相连，所述圆柱形部随后在延伸端转变成一个构成待连接导管5的止动部的卷边形凹部6。当有规则地插接时，导管5的端面7抵靠在压装管配件1的卷边形凹部6上。
在图2、3中示出了在导管插接阶段中的或在***导管后的图1所示的局部A。根据本发明，压装管配件1的圆柱形部4具有一个向外伸出的圆缘8，从而在压装管配件1的内侧面上形成了一个圆柱形凹槽9。一个呈弹性环10形状的卡接件安装在凹槽9中。弹性环10具有一个在插接方向12上略微倾斜的且向内伸出的触头11。
图3示出了***导管5后的状态。导管5端面7在推动触头11时被压向下方，从而弹性环10从此刻起对导管5施加了径向压力。可以通过相应地选择弹性环10的结构、强度和弹性作用来实现这样的目的，即几乎消除了导管5从压装管配件1中退出的现象，除非使用强力拉扯导管，导管才能从压装管配件中退出来。

Claims (10)

1.一种管接头，它是由一个压装管配件(1)和一个导管(5)构成的，所述压装管配件具有至少一个其横截面呈凸起形状地装有一个密封圈(3)的压装管配件部和一个与之相连的圆柱形压装管配件部(4)，所述的压装管配件部(4)在延伸端配有一个构成一个止动部的卷边形凹部(6)，所述导管的平整端部在***压装管配件之后抵靠在压装管配件的内止动部上，借助一个环绕压装管配件的且具有至少两个开口压模的挤压装置并在合拢开口压模后形成了一个不可拆卸的密封管接头，其中开口压模在挤压时不仅作用于包括装在其中的密封圈在内的环形凸起上，而且它们作用于所述的圆柱形压装管配件部上，其特征在于，在开口压模作用区外的导管(5)的压装管配件插接区内开设有一个尽可能防止***导管轴向后退的部件(10)，所述部件的内部净宽度在不受力的状态下小于符合公差要求的最小***导管外径。
2.如权利要求1所述的管接头，其特征在于，所述部件是一个由弹性材料制成的环(10)。
3.如权利要求2所述的管接头，其特征在于，环(10)具有一个向内伸出的触头(11)。
4.如权利要求3所述的管接头，其特征在于，所述触头在导管插接方向上是略微倾斜的。
5.如权利要求1所述的管接头，其特征在于，所述部件是一个由金属材料制成的环形弹性件。
6.如权利要求1所述的管接头，其特征在于，所述部件是一个由金属-塑料复合材料制成的环形弹性件。
7.如权利要求1、2、5或6所述的管接头，其特征在于，在开口压模作用区外的圆柱形压制管接头部内，一个其中装有所述部件的环形凹槽(9)开设于内侧面上。
8.如权利要求7所述的管接头，其特征在于，所述凹槽开设于环形凸起和开口压模作用区之间。
9.如权利要求7所述的管接头，其特征在于，所述凹槽开设于开口压模作用区和卷边形凹部(6)之间。
10.如权利要求7所述的管接头，其特征在于，所述凹槽是由一个向外伸出的圆缘(8)构成的。
CN97196735A 1996-07-26 1997-07-22 管接头 Expired - Fee Related CN1078330C (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19631574.3 1996-07-26
DE19631574A DE19631574C1 (de) 1996-07-26 1996-07-26 Rohrverbindung

Publications (2)

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CN1226310A CN1226310A (zh) 1999-08-18
CN1078330C true CN1078330C (zh) 2002-01-23

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US (1) US6224114B1 (zh)
EP (1) EP0912854B1 (zh)
JP (1) JP2000515952A (zh)
KR (1) KR20000029601A (zh)
CN (1) CN1078330C (zh)
AT (1) ATE211228T1 (zh)
CA (1) CA2261968A1 (zh)
CZ (1) CZ26899A3 (zh)
DE (2) DE19631574C1 (zh)
DK (1) DK0912854T3 (zh)
ES (1) ES2167774T3 (zh)
PL (1) PL331320A1 (zh)
WO (1) WO1998004862A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101487412B (zh) * 2007-12-14 2012-07-04 Gm全球科技运作股份有限公司 汽车的排气装置

Families Citing this family (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29721760U1 (de) * 1997-12-10 1998-01-29 Franz Viegener II GmbH & Co. KG, 57439 Attendorn Unlösbare Preßverbindung zwischen einem Fitting und einem Metallrohrende
DE19813805C1 (de) * 1998-03-24 1999-07-08 Mannesmann Ag Rohrverbindung
DE19852861C1 (de) * 1998-11-09 2000-08-03 Mannesmann Ag Rohrpreßverbindung
DE10054367A1 (de) 2000-10-30 2002-05-08 Mapress Gmbh & Co Kg Rohrverbindung
DE10125302C1 (de) * 2001-05-16 2002-06-20 Mapress Gmbh & Co Kg Rohrverbindung
DE10125304C1 (de) * 2001-05-16 2002-06-20 Mapress Gmbh & Co Kg Rohrverbindung
DE10130110C1 (de) * 2001-06-20 2002-10-31 Mapress Gmbh & Co Kg Rohrpressverbindung
US7143626B2 (en) * 2001-10-24 2006-12-05 Victaulic Company Crimping jaw having energy efficient crimping dies
DE10303296B3 (de) * 2003-01-28 2004-07-29 Kaimer Gmbh & Co. Holding Kg Pressfitting
US6824172B1 (en) 2003-10-14 2004-11-30 Naris Komolrochanaporn Push-pull pipe coupling
DE202004007291U1 (de) 2004-05-07 2005-09-15 Viega Gmbh & Co Kg Pressverbindungsanordnung
DE202004007290U1 (de) 2004-05-07 2005-09-15 Viega Gmbh & Co Kg Dichtelement
DE102005015278B4 (de) * 2005-03-29 2010-06-10 Geberit International Ag Rohrverbindung
DE102006008317B4 (de) * 2006-02-17 2008-07-03 Geberit Technik Ag, Jona Rohrverbindung
US20080001401A1 (en) * 2006-05-25 2008-01-03 Guido Quesada Method and apparatus for preventing overinsertion in plastic pipe systems
US20080018017A1 (en) * 2006-07-21 2008-01-24 Guido Quesada Modified transition angle in belled pipe
US7987690B2 (en) * 2008-01-04 2011-08-02 Cerro Flow Products Llc Fluid conduits with integral end fittings and associated methods of manufacture and use
US7942456B2 (en) * 2008-01-04 2011-05-17 Cerro Flow Products, Inc. Fluid conduits with integral end fittings and associated methods of manufacture and use
DE102009007303B4 (de) 2009-02-03 2023-05-04 Viega Technology Gmbh & Co. Kg Fitting für dickwandige Rohre
US20100253066A1 (en) * 2009-04-02 2010-10-07 Victaulic Company Crimp-Type Coupling, Crimping Tool and Method of Crimping
DE102009035674A1 (de) * 2009-07-30 2011-02-03 Behr Gmbh & Co. Kg Wärmetauscher, Wärmetauschersystem
PL2872810T3 (pl) * 2012-07-10 2017-07-31 King Industrial Limited Złącze na wcisk i zespół złącza z takim złączem na wcisk
GB2526576B (en) * 2014-05-28 2016-07-20 Pegler Yorkshire Group Ltd Improved press-fit pipe coupling
DE102015103228B4 (de) 2015-03-05 2018-03-22 Viega Technology Gmbh & Co. Kg Presshülse, Pressfitting und Verwendung des Pressfittings oder der Presshülse
US10240698B2 (en) 2016-02-17 2019-03-26 Nibco Inc. Crimp connection with one or more crimping elements
KR101905607B1 (ko) * 2016-08-03 2018-10-08 주식회사 조인탑 파이프 조인트 장치 및 그 제조 방법
US10823316B2 (en) 2017-04-28 2020-11-03 Nibco Inc. Piping connections and connection sockets
US10865914B2 (en) 2017-04-28 2020-12-15 Nibco Inc. High temperature leak prevention for piping components and connections
DE102017117369A1 (de) * 2017-08-01 2019-02-07 Gustav Klauke Gmbh Gebäude mit einem metallischen, elektrisch leitfähigen Rohr sowie in einem solchen Rohr verlegte Elektroleitung und metallisches, elektrisch leitfähiges Rohr hierzu
CN108798596A (zh) * 2018-06-28 2018-11-13 托普威尔石油技术股份公司 一种可取式井下安全阀打开工具
JP7312389B2 (ja) * 2019-07-16 2023-07-21 株式会社三五 プレス式管継手
CN112211942B (zh) * 2019-11-04 2021-12-17 北京京西重工有限公司 支架、液压阻尼器组件及其之间的连接方法
US11906015B2 (en) * 2022-01-03 2024-02-20 DRiV Automotive Inc. Damper with a slanted elliptical seal between an intermediate tube and an inner pressure tube

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2927716A1 (de) * 1978-10-27 1980-04-30 Deutsch Co Metal Components Fluid-verbindungsstueck
GB2205138A (en) * 1987-05-23 1988-11-30 Mie Horo Co Ltd Method of joining pipes
EP0378882A1 (de) * 1989-01-17 1990-07-25 MANNESMANN Aktiengesellschaft Unlösbare Verbindung von dünnwandigen Rohren unter Verwendung eines Pressfittings

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB605006A (en) * 1944-04-05 1948-07-14 Felix Roger Malterre Improvements in or relating to couplings for pipes
US2831711A (en) * 1952-10-30 1958-04-22 Gilbert E Leadbetter Wedge ring detent pipe coupling
US3249373A (en) * 1963-11-14 1966-05-03 George P Goldstein Tube coupling having a longitudinally movable biting ring
SE337511B (zh) * 1969-06-26 1971-08-09 Metallverken Essem Plast Ab
CA928360A (en) * 1969-09-24 1973-06-12 Dresser Industries Swagable pipe coupling
US3920270A (en) * 1973-10-03 1975-11-18 Jr Howard R Babb Pipe coupling
US4018462A (en) * 1975-10-31 1977-04-19 Hitachi Metals, Ltd. Pipe fitting
US4146254A (en) * 1976-03-31 1979-03-27 Bristol Products, Inc. Coupler for tubing
DE2627512A1 (de) * 1976-06-18 1977-12-22 Karl Heinz Vahlbrauk Muffenverbindung fuer kunststoffbeschichtete metallrohre
JPS54106919A (en) * 1978-02-09 1979-08-22 Mitsui Toatsu Chem Inc Pipe fitting
JPS569027A (en) * 1979-07-05 1981-01-29 Hitachi Metals Ltd Connecting method of pipe
JPS60227932A (ja) * 1984-04-24 1985-11-13 Nippon Kokan Keishiyu Kk 薄肉金属管の接続方法
JPH0259130A (ja) * 1988-07-13 1990-02-28 Mie Horo Kk 管材の接合方法

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2927716A1 (de) * 1978-10-27 1980-04-30 Deutsch Co Metal Components Fluid-verbindungsstueck
GB2205138A (en) * 1987-05-23 1988-11-30 Mie Horo Co Ltd Method of joining pipes
EP0378882A1 (de) * 1989-01-17 1990-07-25 MANNESMANN Aktiengesellschaft Unlösbare Verbindung von dünnwandigen Rohren unter Verwendung eines Pressfittings

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101487412B (zh) * 2007-12-14 2012-07-04 Gm全球科技运作股份有限公司 汽车的排气装置

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WO1998004862A1 (de) 1998-02-05
ES2167774T3 (es) 2002-05-16
DE59705901D1 (de) 2002-01-31
ATE211228T1 (de) 2002-01-15
CN1226310A (zh) 1999-08-18
US6224114B1 (en) 2001-05-01
EP0912854A1 (de) 1999-05-06
CA2261968A1 (en) 1998-02-05
DE19631574C1 (de) 1997-11-13
DK0912854T3 (da) 2002-03-25
PL331320A1 (en) 1999-07-05
JP2000515952A (ja) 2000-11-28
CZ26899A3 (cs) 1999-05-12
EP0912854B1 (de) 2001-12-19
KR20000029601A (ko) 2000-05-25

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