EP1029192A1 - Piece de raccordement et d'assemblage pour tubes ondules - Google Patents

Piece de raccordement et d'assemblage pour tubes ondules

Info

Publication number
EP1029192A1
EP1029192A1 EP99944212A EP99944212A EP1029192A1 EP 1029192 A1 EP1029192 A1 EP 1029192A1 EP 99944212 A EP99944212 A EP 99944212A EP 99944212 A EP99944212 A EP 99944212A EP 1029192 A1 EP1029192 A1 EP 1029192A1
Authority
EP
European Patent Office
Prior art keywords
housing
seal
support elements
connection
core cavity
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Withdrawn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
EP99944212A
Other languages
German (de)
English (en)
Inventor
Ernst Schwarz
Ralf Kleeb
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.)
PMA AG
Original Assignee
PMA 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 PMA AG filed Critical PMA AG
Publication of EP1029192A1 publication Critical patent/EP1029192A1/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Withdrawn legal-status Critical Current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
    • F16L15/00—Screw-threaded joints; Forms of screw-threads for such joints
    • 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
    • F16L25/00—Constructive types of pipe joints not provided for in groups F16L13/00 - F16L23/00 ; Details of pipe joints not otherwise provided for, e.g. electrically conducting or insulating means
    • F16L25/0036—Joints for corrugated pipes
    • 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
    • F16L15/005—Screw-threaded joints; Forms of screw-threads for such joints for thin-walled pipes having at least their extremities deformed so as to have the shape of screw-threads
    • 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
    • F16L41/08—Joining pipes to walls or pipes, the joined pipe axis being perpendicular to the plane of the wall or to the axis of another pipe
    • F16L41/10—Joining pipes to walls or pipes, the joined pipe axis being perpendicular to the plane of the wall or to the axis of another pipe the extremity of the pipe being screwed into the wall
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S285/00—Pipe joints or couplings
    • Y10S285/903—Corrugated

Definitions

  • the invention relates to a connecting and connecting piece for corrugated pipes with at least one core cavity enclosed by a housing for receiving a pipe end, a connecting part, at the end of the housing facing away from the core cavity, a stop shoulder formed on the housing in the region of the connecting part with a sealing surface and a sealing arrangement .
  • connection fittings for a flexible corrugated hose This connection fitting has a housing with a core cavity, one end of the corrugated hose or corrugated tube being pushed into this core cavity. An opening is also provided on the housing, into which a locking device is inserted and by means of which the end of the corrugated tube is held in the core cavity.
  • a connecting part in the form of a screw connector is arranged, and at the rear end of this screw connector the housing has a stop shoulder with a sealing surface.
  • This screw socket is used to connect the valve to this housing by screwing it into a threaded hole on a wall of a housing, or the screw socket is pushed through a hole and clamped on the inside with a nut.
  • a seal In order to produce tight connections between the stop shoulder on the connection fitting and the wall of the housing, a seal must be inserted in a manner known per se. In order to withstand the relatively high screw-in forces, these tions consist of relatively pressure-resistant materials, for example hard paper. Seals of this type can only compensate for unevenness in the contact area to a limited extent, and they also have only a low elasticity or sealing tolerance, so that the sealing effect is eliminated if the threaded connection is only slightly relaxed.
  • the fixed connection between the seal and the sealing surface on the stop shoulder of the housing has the advantage that the seal is always positioned in the correct position of the housing and cannot be lost.
  • the seal is part of the housing and thus of the connecting and connecting piece, so that when using the connecting and connecting piece, or screwing it together with, for example, the wall of a housing There is always a tight connection between the connector and the part to which the corrugated pipe is to be connected.
  • the connecting part on the housing of the connecting piece can be a screw socket with an external thread, or a socket with an internal thread, or a flange with fastening screws. Both the internal and external threads have the stop shoulder at the inner end of the thread and are either directed radially outwards or inwards.
  • this itself forms the stop surface or sealing surface.
  • the support elements which are formed on the sealing and stop surface on the housing, have the further advantage that the contact pressure generated by the screw connection does not have to be absorbed by the seal, but rather by means of these support elements on the stop shoulder and thus the housing of the connecting piece be transmitted. This results in a much greater freedom of choice for the materials of the seal, so that soft materials such as polyester elastomer can also be used. Due to the great elasticity of such seals, shape deviations, such as unevenness, in the area of the sealing surfaces and also changes in the contact pressures can be compensated for by vibrations. This results in a much better tightness and a higher security of the sealing arrangement.
  • the height of the support elements in the direction of the longitudinal axis of the housing be made smaller than the thickness of the seal.
  • the support elements have a width in the radial direction which is smaller than the width of the seal, so that a closed sealing ring is formed.
  • the seal in the core cavity of the connecting and connecting piece is also firmly connected to the housing, so that here too there is the advantage that this inner seal is part of the housing and cannot be lost. Due to the firm connection along the inner shell of the core cavity, the shape of the seal is also retained, and the seal is not deformed or removed when the tube end is inserted or removed from the core cavity their sealing position removed.
  • soft sealing materials are preferably used, which are suitable for a firm connection with the housing materials. For example, this is also a polyester elastomer.
  • the fixed connection between the or the seals with the housing is formed on the contact surfaces by surface bonds.
  • the housing is first manufactured, for example by injection molding, from plastic or metal or a combination of plastic and metal.
  • the same materials are used as are already in use in the known connection fittings, for example as a plastic a polyamide and as a metal for example stainless steel.
  • the seals are molded onto the prefabricated housing part, so that there is a two-component injection molded part and a firm surface connection results on the contact surfaces between the seal, or the seals and the housing.
  • the arrangement of two pairs of support elements on the stop shoulder of the housing is advantageous since the symmetrical distribution with a distance of 90 ° each results in a uniform and distributed over the circumference.
  • a connecting and connecting piece designed according to the invention simplifies handling and assembly, since no additional parts are necessary to ensure a tight connection, eg. B. according to the standard EN 60529, ie for water. Even if the lock, which holds the pipe end in the core cavity of the housing and secures it against being pulled out, is pre-assembled or connected to the housing, the result is practically a one-piece connecting and connecting piece, which can be easily installed without additional components and handling . Even with a temporary disassembly, they go Seals are not lost, and tightness is guaranteed after re-assembly.
  • FIG. 1 shows a longitudinal section through a connecting and connecting piece according to the invention
  • FIG. 2 shows the view of the connecting piece according to FIG. 1 from the side of the threaded connector.
  • FIG. 1 shows a longitudinal section through a connecting and connecting piece 1 for corrugated pipes 2, one end of the corrugated pipe 2 being shown schematically.
  • This end of the corrugated tube 2 is inserted into a core cavity 4 of a housing 3 of the connector 1 and is held there by locking elements, not shown, but known per se.
  • This locking element is in one
  • Opening 15 is radially inserted into housing 3 and engages with locking ribs in the troughs on corrugated tube 2. As a result, this is held in the housing 3 and locked against pulling out.
  • a locking element is described for example in CH 645448.
  • a connection part 5 is arranged on the housing 3 at the end facing away from the core cavity 4 in the direction of the longitudinal axis 11, which in the example shown is designed as a screw socket with an external thread.
  • a substantially annular seal 7 is firmly connected to this sealing surface 8.
  • the housing 3 is made of plastic and is produced using the injection molding process, polyamide being used as the material.
  • the seal 7 is injection molded onto the housing 3 in a second operation, so that the desired firm connection between the seal 7 and the sealing surface 8 results.
  • a polyester elastomer is used as the material, it also being possible to use all other plastics suitable for such seals.
  • On the stop shoulder 6 8 support elements 9 and 10 are arranged on the sealing surface, which are formed directly on the housing 3 and therefore consist of polyamide. These support elements 9, 10 are less high than the thickness of the seal 7 in the direction of the longitudinal axis 11. As a result, the seal 7 projects beyond the support elements 9, 10 in the initial state and can be compressed. Also in the radial direction, the support elements are smaller than the width of the seal 7 or the sealing surface 8, so that the seal 7 is closed in a ring.
  • connection piece t is screwed into a threaded bore with the screw connection 5, the contact forces are absorbed by the support elements 9 and 10 and not by the seal 7.
  • the material of the seal 7 can thus be optimally matched to the sealing purpose, and a better and more reliable sealing effect is achieved.
  • a seal 12 is also arranged, which forms part of a sealing arrangement between the corrugated tube 2 and the housing 3.
  • This seal 12 is firmly connected to the inner jacket 14 of the core cavity 4 on the housing 3 via the outer jacket.
  • This fixed connection is also produced by injecting the seal 12 into the housing 3 in a second operation.
  • a polyester elastomer is also used as the material for the seal 12.
  • the support elements 9 and 10 are arranged offset in pairs.
  • the two support elements 9, which are diametrically opposed, are on the inside diameter of the stop shoulder 6, or the sealing surface 8 arranged.
  • the two support elements 10 are also diametrically opposite, but are arranged on the outside diameter of the stop shoulder 6 and thus the sealing surface 8.
  • the two support elements 10 are arranged in the direction of the circumference between the two support elements 9, so that there is a spacing angle of 90 ° between the support elements 9 and 10. This arrangement ensures an even distribution of the contact pressure and at the same time a secure support.
  • a larger number of support elements 9 and 10 or another arrangement or larger elements can also be arranged. From Fig. 2 it can also be seen that the seal 7, despite the support elements 9 and 10, surrounds the screw socket or the connecting part 5 in an annular manner.

Abstract

L'invention concerne une pièce de raccordement (1) qui comporte, dans les zones d'une partie d'assemblage (5), un joint (7) qui est solidaire du boîtier (3) de la pièce de raccordement (1). Des éléments d'appui (9) protègent ledit joint (7) contre des forces de pression non admissibles. Un joint (12) est également placé entre le boîtier (3) et une extrémité d'un tube ondulé (2). Ce joint (12) est assemblé de façon inamovible avec la chemise intérieure (14) du boîtier (3) de la pièce de raccordement (1).
EP99944212A 1998-10-29 1999-09-27 Piece de raccordement et d'assemblage pour tubes ondules Withdrawn EP1029192A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CH218698 1998-10-29
CH02186/98A CH693151A5 (de) 1998-10-29 1998-10-29 Verbindungs- und Anschlussstück für Wellrohre.
PCT/CH1999/000455 WO2000026570A1 (fr) 1998-10-29 1999-09-27 Piece de raccordement et d'assemblage pour tubes ondules

Publications (1)

Publication Number Publication Date
EP1029192A1 true EP1029192A1 (fr) 2000-08-23

Family

ID=4227908

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99944212A Withdrawn EP1029192A1 (fr) 1998-10-29 1999-09-27 Piece de raccordement et d'assemblage pour tubes ondules

Country Status (8)

Country Link
US (1) US6349980B1 (fr)
EP (1) EP1029192A1 (fr)
JP (1) JP2002529662A (fr)
KR (1) KR20010032177A (fr)
CH (1) CH693151A5 (fr)
DE (1) DE29980147U1 (fr)
ES (1) ES2149753T1 (fr)
WO (1) WO2000026570A1 (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2373303B (en) * 2001-01-23 2004-07-21 Smiths Group Plc A pipe coupling having inner and outer layers of deformable material
US20030094767A1 (en) * 2001-11-16 2003-05-22 Alcatel Mechanical seal for a cable installed in a corrugated duct
ITMI20030645A1 (it) * 2003-04-01 2004-10-02 Inset S P A Sistema di raccordi per connessione di elementi protettivi
WO2006007744A1 (fr) * 2004-07-16 2006-01-26 Pma Ag Piece de raccordement et d'assemblage pour tubes ondules
WO2007038885A1 (fr) * 2005-10-03 2007-04-12 Pma Ag Piece de liaison et de raccordement destinee a des tubes ondules
EP1845299B1 (fr) * 2006-04-12 2009-03-04 Ems-Chemie Ag Dispositif de raccordement pour un tuyau
DE202009002925U1 (de) 2009-02-23 2009-05-20 Hidde, Axel R., Dr. Schutzschlauch-/-rohr-Schnellverschraubung
DE202009007099U1 (de) 2009-05-11 2009-08-06 Hidde, Axel R., Dr. Ing. Schutzschlauch-/-rohr-Schnellverschraubung mit Frontöffner
DE102015102594A1 (de) * 2015-02-24 2016-08-25 Witzenmann Gmbh Verfahren und Anbindungsteil zum strömungsleitenden Anbinden eines Leitungselements

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2908337C2 (de) 1979-03-03 1982-11-18 PMA Elektro AG, 8623 Wetzikon Anschlußarmatur für flexible Wellschläuche
AT385340B (de) * 1986-05-09 1988-03-25 Dietzel Gmbh Anschluss- und befestigungselement fuer umfangsprofilierte rohre und schlaeuche
DE3903780C2 (de) * 1989-02-09 1996-03-21 Festo Kg Dichtring
US5163721A (en) * 1990-10-24 1992-11-17 Cajon Company Fluid coupling with gasket retainer having interlocking portions
DE4105266A1 (de) * 1991-02-20 1992-08-27 Kirchner Fraenk Rohr Rohranschlussteil fuer wellrohre
US5176215A (en) * 1991-09-30 1993-01-05 Chicago Rawhide Manufacturing Co. Composite drain plug
JP3505589B2 (ja) * 1992-04-20 2004-03-08 清原 まさ子 管継手用リテーナ
US5366261A (en) * 1992-04-27 1994-11-22 Fujikin Incorporated Pipe joint with a gasket retainer
JPH07127780A (ja) * 1993-11-02 1995-05-16 Shiro Kanao コルゲート螺旋管用継手と継手付きコルゲート螺旋管及びその製造方法並びに継手付きコルゲート螺旋管への螺旋管の接続方法
DE29609416U1 (de) * 1996-05-25 1996-08-14 Alcatel Kabel Ag Vorrichtung zur Durchführung eines langgestreckten Gegenstandes durch eine Öffnung einer Wand
DE19644578A1 (de) * 1996-10-26 1998-04-30 Gerhard Kranenberg Dichtmanschette

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO0026570A1 *

Also Published As

Publication number Publication date
JP2002529662A (ja) 2002-09-10
CH693151A5 (de) 2003-03-14
DE29980147U1 (de) 2001-06-07
KR20010032177A (ko) 2001-04-16
ES2149753T1 (es) 2000-11-16
WO2000026570A1 (fr) 2000-05-11
US6349980B1 (en) 2002-02-26

Similar Documents

Publication Publication Date Title
EP1697674B1 (fr) Raccord a emboitement pour conduites de fluide
EP0726418A2 (fr) Connexion de tuyaux souples, en particulier pour connecter des tuyaux flexibles tels que des tuyaux d'arrosage
EP1319451A1 (fr) Elément de support d'un paroi, en particulier pour le paroid d'un couvercle ou d'un récipient
DE19523287A1 (de) Verbindungsanordnung zum Verbinden eines Abzweigelementes mit einer Hochdruck-Kraftstoffschiene
DE3101558A1 (de) Vorrichtung zum halten von kabeln, leitungen, schlaeuchen oder dergleichen gegenstaende
DE2521930C2 (de) Rohrverbindungsstück
EP1030097B1 (fr) Dispositif de raccordement ayant un corps d'armature à fixation rotative
DE102015007356A1 (de) Steckbare Verbindungsanordnung und Verfahren zur Vorbereitung einer steckbaren Verbindungsanordnung
DE1814373A1 (de) Verbindung fuer Leitungsteile fuer Stroemungsmittel
EP1540234B1 (fr) Bague intermediaire en tant qu'adaptateur pour une partie vissee d'un systeme a enfichage pour fluide
DE60205641T2 (de) Zur verbindung zweier röhrenförmiger elemente verwendete kupplung und montageverfahren dafür
DE4430114C2 (de) Anschlußstück für einen Kunststoffschlauch einer Badezimmer-Handbrause
EP1029192A1 (fr) Piece de raccordement et d'assemblage pour tubes ondules
DE2211496A1 (de) Dichtverbindung zwischen zwei zylindrischen Werkstücken
DE3521178C2 (fr)
EP0073748B1 (fr) Manchon de câble fendu longitudinalement à l'épreuve de la pression
DE10359609A1 (de) Drosselklappenstutzen
EP0461308B1 (fr) Pièce intermédiaire pour la liaison de tuyaux en matière plastique avec armature métallique, en particulier dans les domaines sanitaires et de chauffage
EP0797037A2 (fr) Raccord de tuyaux à assemblage rapide
DE2230740A1 (de) Ringdichtung fuer verbindungen an rohrleitungen, armaturen und dergl
DE112008000586B4 (de) Anschlussvorrichtung für Medienleitungen
DE10257818A1 (de) Stutzen für eine Behälterwand
DE19614278A1 (de) Kugelhahn aus Kunststoff
DE3721354A1 (de) Anschlussarmatur fuer flexible wellschlaeuche
WO2003098090A1 (fr) Collier d'attache pour tuyaux

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20000503

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

17Q First examination report despatched

Effective date: 20000828

GBC Gb: translation of claims filed (gb section 78(7)/1977)
EL Fr: translation of claims filed
REG Reference to a national code

Ref country code: ES

Ref legal event code: BA2A

Ref document number: 2149753

Country of ref document: ES

Kind code of ref document: T1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20010613