EP1025382A1 - Raccord male-femelle - Google Patents

Raccord male-femelle

Info

Publication number
EP1025382A1
EP1025382A1 EP98958873A EP98958873A EP1025382A1 EP 1025382 A1 EP1025382 A1 EP 1025382A1 EP 98958873 A EP98958873 A EP 98958873A EP 98958873 A EP98958873 A EP 98958873A EP 1025382 A1 EP1025382 A1 EP 1025382A1
Authority
EP
European Patent Office
Prior art keywords
connecting part
seal
plug connection
connection according
latching
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.)
Withdrawn
Application number
EP98958873A
Other languages
German (de)
English (en)
Inventor
Thomas Discher
Sigbert Hauser
Rolf Schlein
Rüdiger STANGE
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.)
Siemens AG
Original Assignee
Mannesmann VDO AG
Siemens 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 Mannesmann VDO AG, Siemens AG filed Critical Mannesmann VDO AG
Publication of EP1025382A1 publication Critical patent/EP1025382A1/fr
Withdrawn legal-status Critical Current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
    • 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
    • F16L37/098—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 flexible hooks
    • F16L37/0985—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 flexible hooks the flexible hook extending radially inwardly from an outer part and engaging a bead, recess or the like on an inner part

Definitions

  • the invention relates to a plug connection, in particular for fluid lines, according to the features of the preamble of patent claim 1.
  • Plug connections of this type are known in practice in a variety of embodiments.
  • a snap-in connection with elastically locking holding elements is usually provided, which correspond in pairs to the male part to be inserted and the female part to be connected.
  • elastic locking hooks or the like are provided on the receiving part, while the outer contour of the part to be inserted is provided with a stepped collar or ring collar, which serves as an abutment for the radially inwardly directed locking hooks.
  • the necessary sealing of such a plug connection is ensured by a seal (sealing ring, surface seal or the like) already coming into contact on both sides before the retaining elements are latched and possibly being radially compressed at least slightly until the latching position is reached.
  • a seal sealing ring, surface seal or the like
  • the latching connection must be very firm. This can lead to problems when disconnecting the connection, whereby tool-free dismantling by hand is generally preferable.
  • the connecting part to be inserted is often provided with a chamfer on its front outer circumference, which supports its insertion into the receiving part.
  • the invention has for its object to provide a simple connector with improved sealing effect.
  • the seal can be clamped between a front region of the connecting part to be inserted and an abutment in the receiving connecting part.
  • the distance between the latching elements of the connecting part to be inserted and the front area thereof is dimensioned such that the latching position can only be reached by slightly compressing the seal in the axial direction.
  • the connection becomes less sensitive to slight deviations from the alignment of the two connecting parts, which can arise, for example, from external forces.
  • the above advantageous effect is achieved particularly expediently if the seal is ring-shaped with a non-round cross-section and with an inner diameter which is variable over its axial extent, with a section having a larger inner diameter abuts the outer surface of the connector to be inserted. Due to this shape, the mouth of the seal towards the part to be inserted forms a funnel contour, which simplifies its insertion. The radially drawn section then lies in front of the front end of the connecting part and forms the axial seal.
  • the insertion and contacting of the connecting part to be inserted is made very easy and the seal remains largely protected from damage if the front outer area or the front lateral surface of the connecting part to be inserted is provided with a chamfer or bevel in a manner known per se. If the bevelled outer surface is in contact with the seal and compresses it in both the axial and radial directions, this results in a particularly good sealing quality on the one hand, and on the other hand the necessary joining force is reduced by the wedge effect.
  • a significant advantage with regard to quality assurance is achieved if a stop is provided which limits the insertion depth of the connecting part to be inserted and acts independently of the latching means and the seal. Then the connecting part can be pushed in at a maximum to a fixed depth, the latching position having been reached beforehand. This prevents accidental squeezing of the elastic seal.
  • this stop is formed by at least one radial projection, for example an annular collar, formed on the connecting part to be inserted, the outer dimension of which is larger than the circular opening of the receiving connecting part.
  • the latching elements can be released from the latching means by means of separate aids or lifters molded directly onto them. This will make it much easier to deliberately disconnect the connector. Damage caused by improper use of tools is also avoided and it is ensured that the connecting parts can continue to be used after disconnection.
  • the latching hooks and the lifters are connected to the connecting part via thin webs and are designed as two-armed levers which can be pivoted elastically by pressing in the lifters and turning the webs.
  • plug connections are preferably used in the manufacture of low-pressure hose connections in motor vehicles, for example for windshield washer and / or headlight cleaning systems. They can also be used in line systems for pneumatic central locking systems or other pressure- or vacuum-controlled consumers. However, the plug connection discussed here would also be suitable for watertight and pressure-tight contacting of electrical conductors, which, for example, could be inserted into the inner cavities of the connecting parts in addition to the required end plug contacts.
  • FIG. 2 a plug-in and a receptacle connecting part of the plug connection during the joining
  • Figure 3 an assembled connector in an enlarged view to illustrate the installation of the seal and the function of the locking elements.
  • a plug connection 1 in each case comprises a male part 2 to be inserted and a female part 3 to be inserted, both of which are preferably rotationally symmetrical.
  • the tubular connecting part 2 consists essentially of a front section 4, a hollow cylindrical shaft 5 and an annular collar 6 surrounding the shaft.
  • the front section 4 has the same inner diameter as the shaft, but its outer lateral surface is essentially significantly shaped as a truncated cone. Short cylindrical sections can be provided on both sides of the truncated cone. At its front edge, the outer diameter of the front section 4 is smaller than that of the shaft 5 and increases continuously towards the shaft beyond its diameter.
  • a chamfer or chamfer is thus formed, which facilitates the insertion of the front section 4 into the corresponding receiving connecting part 3 (see FIG. 2).
  • a step 7 reduces the outer diameter of the front section from the largest dimension to the somewhat smaller diameter of the shaft 5.
  • the step 7 forms one of the locking elements, the overall function of which will be discussed later.
  • the tubular connecting part 3 which is also tubular, has a more complicated structure. Its inside diameter corresponds essentially to the largest diameter of the front (truncated cone) section 4. At a distance from an end opening 8, an annular seal 10 made of flexible TPE (tetrapolyethylene) with a non-round cross section is inserted into the interior 9 of the connecting part 3. It lies radially on the outside against the hollow cylindrical inner wall of the interior 9.
  • a step 1 As an abutment, which reduces the diameter of the interior 9 behind the seal to a dimension corresponding to the inside diameter of the connecting part 2 to be inserted and prevents the seal 10 from axially deflecting when the plug connection 1 is joined.
  • a groove or groove 12 is formed in the axial direction along its outer circumference, into which an axially projecting ring extension 13 of the seal 10 is inserted.
  • the inner diameter of the seal 10 narrows from a larger dimension facing the opening 8 to a smaller dimension facing the step 11, and not continuously, but in a short, step-like transition area.
  • the inner lateral surfaces of the seal 10 are approximately hollow cylindrical with different diameters.
  • 3 further locking elements are provided in the outer wall of the receiving connecting part, which are preferably molded in one piece on the connecting part molded from POM (polyoxymethylene).
  • POM polyoxymethylene
  • latching hooks 16 which protrude into the interior 9, wherein they have a flank 17 oriented towards the opening 8, which runs obliquely to the longitudinal axis of the plug connection, and a front flank 18 oriented towards step 11 and runs perpendicular to the longitudinal axis.
  • the locking hooks 16, each connected to the connecting part 3 via a thin web 19, are pierced by longitudinal slots 20 extending between the respective web 19 and the end flank 18 with respect to the rest of the outer wall, so that they can deflect in and out elastically in the radial direction.
  • lifters 21 are also formed as release tools, which are also punched out by slots.
  • the latching hooks 16 and the lifters 21 thus form two-armed levers or rockers with a pivot axis lying in the region of the respective web.
  • the seal 10 is compressed in the joining position both in the axial and in the radial direction, so that on the one hand a radial elastic force component for the mutual sealing of the lateral surfaces and an axial elastic force component for the sealing between the step 11 and the radial surface portion of the front section projected in the axial direction 4 arises.
  • the resulting significant increase in force during the joining notifies a fitter, on the one hand, of the reaching of the end position of the connecting part to be inserted, on the other hand, it causes a constant pre-tensioning against the locking elements, so that a particularly secure, play-free connection is ensured.
  • the seal 10 also absorbs dimensional deviations of the connecting parts or locking elements in its elastic deformation. ⁇
  • the soft-elastic material to be displaced when compressing the seal 10 can enter, on the one hand, into the area between the two annular contact surfaces, and, on the other hand, into the joint between the end face of the section 4 and the step 11.
  • the latter parting line is thus largely filled, so that flow resistance due to eddies occurring here can be minimized.
  • Appropriate shaping of the seal in the contact area to step 11 can, if necessary, completely fill the parting line and thus create a completely smooth transition from the plug-in part to the receptacle.
  • a pressure on the lifter 21 in the radial direction is sufficient, which can be exerted, for example, with the thumb and index finger of one hand. Then the lifters 21 temporarily dip into the interior 9 of the connecting part 3 or the remaining annular gap between the shaft 6 and the inner wall of the connecting part 3.
  • the webs 19, which are preferably arranged on either side of the latching hook or lifter, are elastically twisted. As a result, the locking hooks 16 pivot radially outwards and the end flanks 18 release the step 7, so that the connecting part 2 can be pulled out without effort and without the use of tools. It goes without saying that the torsional rigidity of the webs should be lower than the flexural rigidity of the latching hooks and lifters.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Quick-Acting Or Multi-Walled Pipe Joints (AREA)

Abstract

Raccord mâle-femelle (1), en particulier pour conduites de fluide, comportant une partie à introduire (2) et une partie réceptrice (1) entre lesquelles peut être monté un joint d'étanchéité (10) et qui peuvent être connectées l'une à l'autre de manière amovible dans une position de verrouillage par des éléments d'arrêt (7, 18) souples. Selon la présente invention, le joint d'étanchéité (10) est monté entre un segment avant (4) de la partie à introduire (2) et une butée (11) ménagée sur la partie réceptrice (3). L'écart entre les éléments d'arrêt (7) de la partie à introduire (2) et le segment avant (4) de ladite partie est tel que la position de verrouillage est atteinte après une compression minime dans le sens axial, et le cas échéant dans le sens radial, du joint d'étanchéité (10).
EP98958873A 1997-10-30 1998-10-27 Raccord male-femelle Withdrawn EP1025382A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19747959 1997-10-30
DE19747959A DE19747959B4 (de) 1997-10-30 1997-10-30 Steckverbindung
PCT/EP1998/006795 WO1999023408A1 (fr) 1997-10-30 1998-10-27 Raccord male-femelle

Publications (1)

Publication Number Publication Date
EP1025382A1 true EP1025382A1 (fr) 2000-08-09

Family

ID=7847107

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98958873A Withdrawn EP1025382A1 (fr) 1997-10-30 1998-10-27 Raccord male-femelle

Country Status (5)

Country Link
US (1) US6523864B1 (fr)
EP (1) EP1025382A1 (fr)
BR (1) BR9813166A (fr)
DE (1) DE19747959B4 (fr)
WO (1) WO1999023408A1 (fr)

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US6162400A (en) * 1998-08-12 2000-12-19 Agilent Technologies, Inc. Apparatus for controlling reactions
US6945422B2 (en) 2000-11-08 2005-09-20 Delphi Technologies, Inc. In-tank fuel line quick connector assembly
FR2829554B1 (fr) * 2001-09-13 2003-11-28 Nobel Plastiques Raccord encliquetable monocorps
DE10159280B4 (de) * 2001-12-04 2004-12-16 Kautex Textron Gmbh & Co Kg Steckverbindung
FR2844860B1 (fr) * 2002-09-20 2006-12-15 Legris Sa Connecteur rapide a securite accrue
JP4131409B2 (ja) * 2004-03-30 2008-08-13 東海ゴム工業株式会社 クイックコネクタ
DE102005010664A1 (de) * 2005-03-08 2006-09-14 Siemens Ag Verbindungselement zum Transport von gasförmigen, flüssigen oder festen Stoffen
US7404686B2 (en) * 2005-04-26 2008-07-29 Peter Volum Snap fitting for joining component parts of an article of assembly
US7547048B2 (en) * 2005-12-09 2009-06-16 Itt Manufacturing Enterprises, Inc. Fluid quick connector with integral pivotal retainer
US20080106095A1 (en) * 2006-11-08 2008-05-08 Harris Richard K Heater core connector tube
US8469405B2 (en) * 2009-10-20 2013-06-25 Dave Wheatley Enterprises, Inc. Securing mechanism for a coupling device
US8371620B1 (en) * 2011-09-22 2013-02-12 Tsai-Chen Yang Quick connector
WO2014044275A1 (fr) * 2012-09-19 2014-03-27 Schaeffler Technologies AG & Co. KG Unité de liaison destinée à fixer une conduite hydraulique à un élément
CN108916502A (zh) * 2018-09-13 2018-11-30 德清恒升管件有限公司 一种可调节的管道连接件
CN109027467A (zh) * 2018-09-13 2018-12-18 德清恒升管件有限公司 一种密封装置稳定的管道连接件
CN108953794A (zh) * 2018-09-18 2018-12-07 德清恒升管件有限公司 一种易拆装的管道连接件
CN108916507A (zh) * 2018-09-18 2018-11-30 德清恒升管件有限公司 一种易接合的管道连接装置
CN113202992A (zh) * 2021-03-30 2021-08-03 中国十七冶集团有限公司 一种钢导管管件连接装置及安装方法
BE1029933B1 (nl) * 2021-11-18 2023-06-19 Projimmo Bvba Verbeterde ventilatieluchtslangfitting
WO2023192077A1 (fr) * 2022-03-30 2023-10-05 National Diversified Sales, Inc. Raccord à tuyaux multiples

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Also Published As

Publication number Publication date
DE19747959B4 (de) 2006-06-29
DE19747959A1 (de) 1999-05-06
US6523864B1 (en) 2003-02-25
WO1999023408A1 (fr) 1999-05-14
BR9813166A (pt) 2000-08-22

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