EP1108178A1 - Ensemble de raccordement a raccorder a un tuyau - Google Patents

Ensemble de raccordement a raccorder a un tuyau

Info

Publication number
EP1108178A1
EP1108178A1 EP99947084A EP99947084A EP1108178A1 EP 1108178 A1 EP1108178 A1 EP 1108178A1 EP 99947084 A EP99947084 A EP 99947084A EP 99947084 A EP99947084 A EP 99947084A EP 1108178 A1 EP1108178 A1 EP 1108178A1
Authority
EP
European Patent Office
Prior art keywords
collar portion
body portion
connection assembly
pipe
connection
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Withdrawn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
EP99947084A
Other languages
German (de)
English (en)
Other versions
EP1108178A4 (fr
Inventor
John Selkirk Mcnab
Andrew Kirsh
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.)
MCNAB, MARGARET
Original Assignee
Calair Pipe Systems Pty Ltd
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 Calair Pipe Systems Pty Ltd filed Critical Calair Pipe Systems Pty Ltd
Publication of EP1108178A1 publication Critical patent/EP1108178A1/fr
Publication of EP1108178A4 publication Critical patent/EP1108178A4/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Withdrawn legal-status Critical Current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
    • F16L37/12—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members using hooks, pawls or other movable or insertable locking members
    • F16L37/122—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members using hooks, pawls or other movable or insertable locking members using hooks tightened by a wedge section

Definitions

  • the present invention relates to a connection assembly for coupling to a pipe.
  • a conventional assembly used for coupling to a pipe, to facilitate connection of an additional fitting or for terminating the pipe includes a threaded body portion adapted to be received in a correspondingly threaded collar portion which fits over an end of the pipe.
  • the assembly includes an 'O'-ring, or the like, a clamping ring and a thrust ring for transferring load from the body portion to the clamping ring.
  • the portions are configured so that when the body portion is screwed into the collar portion, the clamping ring is forced into clamping engagement with the pipe.
  • the 'O'-ring is not preloaded or energised. Sealing and energising of the O'-ring takes effect only when fluid pressure is applied within the pipe. Construction of such an assembly is generally fairly complicated, particularly, since accurate machining or moulding of the screw thread is required.
  • connection assembly which is of simplified construction, is easy to use and is preferably tamper proof.
  • connection assembly including: a collar portion adapted to fit over a pipe; a body portion arranged to engage with the collar portion; sealing means; and a grip ring, wherein one of the portions includes a boss for engagement with corresponding retaining structure of the other portion so as to facilitate bayonet type connection between the components, comprising axial advancement followed by rotational connection, the connection resulting in a compressive force being applied between the body portion and the collar portion to drive the grip ring into gripping engagement with the pipe and simultaneously energise the sealing means to effect a seal between the body portion and the pipe.
  • the assembly further includes a locking means movable so as to be able to adopt a lock position in which relative rotation between the two portions is inhibited.
  • the body portion includes the boss and the collar portion includes said retaining structure, in the form of a flange, extending circumferentially and radially, inwardly of the housing.
  • the flange or boss includes a ramped surface with axial dimension for effecting axial advancement of the body portion into the collar portion during rotational connection, to apply a compression force to the grip ring and energise the sealing means.
  • a plurality of bosses are provided about a circumference of the body portion and a plurality of associated flanges are provided in the collar portion.
  • the locking means includes a plurality of tabs projecting from an annular locking cap and the collar portion includes a plurality of associated slots for receipt of the tabs which, in use, extend through the collar portion for engagement with associated ones of the bosses of the body portion to inhibit relative rotation between the portions.
  • the locking cap includes at least one attachment hole for receiving at least one spigot projecting outwardly from the collar portion, the spigot having a resiliently biased head adapted to contract to pass through the hole and subsequently expand to anchor the locking cap to the collar portion when the locking means is in the lock position.
  • the locking cap is provided with the at least one spigot and the collar portion provided with the at least one attachment hole for receipt of the spigot to anchor the locking cap to the collar portion.
  • the collar portion includes a plurality of indents about a periphery thereof for receipt of associated fingers of a driving spanner used to rotate the collar portion relative to the body portion into engagement therebetween.
  • the locking means includes at least one elongated arm member mounted for pivotal movement in the region of one end portion thereof between the lock position and a release position.
  • the or each arm includes a locking detent in the region of the other end portion of the arm member, the detent, when the arm member is in the lock position extending through an aperture or slot in the collar portion into a position which inhibits relative rotation between the portions.
  • the or each arm member is pivotally mounted to the collar portion and in the release position extend generally radially with respect to the collar portion.
  • two arm members are provided and are disposed in generally diametrically opposed positions.
  • Figure 1 is an exploded view of a connection assembly
  • Figure 2 is a cross-sectional view of another example of a connection assembly
  • Figure 3 is a cross-sectional view of the assembly shown in Figure 2
  • Figure 4 is a first perspective view of the assembly shown in Figures 2 and 3;
  • Figure 5 is a second perspective view of the assembly shown in Figures 2 to 4;
  • Figure 6 is an exploded perspective view of a preferred embodiment of the invention;
  • Figure 7 is a cross-sectional view along the line A- A, shown in Figure 6;
  • Figure 8 is a cross-sectional view along the line B-B, shown in Figure 6;
  • Figure 9 is an exploded perspective view of another preferred embodiment of the invention.
  • a connection assembly 1 includes a body portion 2, a grip ring 5, a collar portion 6 and sealing means 3 in the form of an 'O'-ring 4, for forming a seal between the grip ring 5 and the body portion 2, and a pipe 18.
  • the body portion 2 has a cylindrical body 7 with bosses 8 arranged about a circumference 9, at one end 10 thereof. Each boss 8 includes two surfaces 11, 12, oppositely ramped in an axial direction of the body portion 2, so as to form a V-shaped connection surface.
  • the body portion 2 also includes an annular recess 13 for carrying of the 'O'-ring 4 and base 14 of the grip ring 5.
  • the collar portion 6 includes a cylindrical housing 15 with a cone-shaped front end 16, defining a first opening 17 for receipt of the pipe 18.
  • the second end 19 of the housing 15 is arranged for receipt of the body portion 2, carrying the grip ring 5 and the
  • Retaining structure 20 is provided in the housing 15 for releasably holding the body portion 2 in the collar portion 6.
  • the retaining structure 20 comprises a plurality of flange elements 21 arranged around an inner circumference of the housing 15 and extending radially inwardly thereof.
  • the flange elements 21 each include a V-shaped indentation 22, facing the front end 16 of the housing 15, for receipt of the corresponding V-shaped connection surfaces 11, 12 of the associated bosses.
  • the assembly 1 is fitted to the pipe 18 by inserting an end 23 of the pipe 18 into the assembly via the first opening 17 of the collar portion 6 and sliding the collar portion 6 over the pipe 18.
  • the body portion 2, carrying the 'O'-ring and grip ring, extends through the second end 19 of the collar portion 6 so that the bosses 8 register with apertures 24 provided between the flange elements 21.
  • the body portion 2 is subsequently advanced into the housing 15 of the collar portion 6 until the grip ring 5 abuts an inner surface 25 of the cone-shaped front end 16.
  • the body portion 2 is then rotated relative to the collar portion 6 so that the bosses 8 engage with the flange elements 21.
  • each boss rides up over the associated flange element 21 to axially advance the body portion 2 and compress the grip ring 5, forcing it into gripping engagement with the pipe 18 and simultaneously compressing and energising the O'-ring 4 for sealing engagement between the body portion 2, the pipe 18 and the grip ring, as represented in Figure 3.
  • the end sections of the grip ring 5 which engage the pipe 18 may have serrations or tooth-like elements thereon. Further rotation of the body portion results in the V-shaped connection surfaces of the bosses being releasably located in the corresponding V-shaped indentation 22 of the flange elements 21.
  • the body portion 2 is shown as terminating the pipe 18 but may be of any suitable construction, for example, of a hollow structure for coupling to other pipes to allow for fluid communication therebetween, such as in the form of an "L", "T” or other threaded connector, as illustrated, for example, in Figures 6 and 9.
  • the assembly further includes releasable locking means 30 which is movable so as to be able to adopt a lock position in which relative rotation between the body portion 2 and collar portion 6 is inhibited.
  • the releasable locking means 30 includes a pair of elongated arm members 31 and 32 mounted to the collar portion 2 for pivotal movement in the region of one end portion thereof about pivot mountings 33 and 34 between the lock position and a release position.
  • Each arm member includes a locking detent 35 and 36 in the region of the other end portion of the arm member.
  • the detents extend through an aperture or slot 41 and 42 in the collar portion into a position which inhibits relative rotation between the two parts.
  • the arms 31 and 32 extend generally radially with respect to the collar and the two arm members are disposed in generally diametrically opposed positions. In the radially extended position the arm members can act as levers to assist in the connection of the two portions together.
  • the locking means 50 includes an annular locking cap 51 with tabs 52 projecting circumferentially and axially therefrom. For installation, the locking cap 51 is slid over the pipe 18 and an assembly 53 attached, as described above.
  • the connection assembly
  • assembly 53 is of generally the same construction as assembly 1 but includes slots 54 in the end 16 of the collar portion. Once the assembly 53 is attached to the pipe, the locking means 50 is advanced such that the tabs 52 pass through the slots 54 to locate between the bosses 8, when the body portion and collar portion are connected together, to thereby prevent relative rotation between the body portion 2 and the collar portion 6.
  • the locking cap 51 has attachment holes 55 therein for receipt of spigots 56 projecting from the collar portion 6.
  • the collar portion may be provided with the holes and the locking cap with the spigots.
  • the spigots 56 are preferably formed with resiliently biased heads such that the heads may contract to enter the holes and subsequently expand after passing therethrough to securely anchor the locking cap 51 in place.
  • the locking cap 51 thereby provides a high level of security against tampering or unintentional loosening of the assembly.
  • a specially designed tool (not shown) may be employed to release the spigots, and thereby the locking cap, if the assembly 53 need to be released from the pipe.
  • the configuration of the locking cap 51 is also such that secure locking of the assembly can be achieved without requiring additional space around the assembly for manipulation, as would be the case with the locking means 30 shown in Figures 2 to 5.
  • the collar portion of Figure 6 also includes circumferentially spaced indents 57 about a periphery thereof to assist in gripping the collar portion during installation.
  • the indents 57 are adapted for receipt of associated fingers of a driving spanner (not shown) used for effecting relative rotation between the collar portion 6 and the body portion 2.
  • FIG. 9 illustrates a further preferred assembly 60.
  • the assembly 60 is again of generally similar construction to each of the abovedescribed assemblies 1 and 53 and like parts are denoted with like reference numerals.
  • the locking means 50 is, however, somewhat differently constructed to the locking means shown in Figure 6 in that only two tabs 52 are provided and the remaining two tabs of Figure 6 are replaced with resilient latches 61 which snap engage through the associated apertures 54 to secure the cap 51 in place.
  • the body portion of Figure 9 is also provided with a modified "Z" shaped profile 62 on each of the bosses 8 for engagement with complimentary shaped retaining structure
  • the invention provides a simplified connection assembly which allows for rapid and reliable interconnection with the pipe.
  • the assembly is easy to construct and requires minimal rotational movement for secure interconnection. Pre-loading and energising of the sealing means is also effected during connection so that a seal is established without the need for separate fluid pressurisation of the pipe.
  • the assembly can also be locked in place in a quick, effective and secure manner.
  • the bayonet type connection in combination with the tabs of the locking cap locating between bosses of the body portion ensures the assembly is installed correctly without the danger of the body and collar portions being under or overtightened, as may be the case with the screw-threaded arrangement of the prior art, thereby also avoiding the need for specialised tradespeople to install the assembly.

Landscapes

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

Abstract

L'invention concerne un ensemble de raccordement (1, 53, 60) à raccorder à un tuyau (18). L'ensemble comprend une partie corps (2), une partie manchon (6), un joint torique (4) et un anneau de serrage (5). On agence les parties corps et manchon de manière à obtenir un raccordement du type baïonnette qui permet d'engager l'anneau de serrage dans le tuyau et de faire fonctionner le joint torique -our former une zone d'étanchéité entre la partie corps et le tuyau. De préférence, un dispositif de verrouillage (50) est mis en place pour éviter une rotation relative entre la partie manchon et la partie corps.
EP99947084A 1998-09-02 1999-09-02 Ensemble de raccordement a raccorder a un tuyau Withdrawn EP1108178A4 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
AUPP563698 1998-09-02
AUPP5636A AUPP563698A0 (en) 1998-09-02 1998-09-02 Connection assembly for coupling to a pipe
PCT/AU1999/000710 WO2000014445A1 (fr) 1998-09-02 1999-09-02 Ensemble de raccordement a raccorder a un tuyau

Publications (2)

Publication Number Publication Date
EP1108178A1 true EP1108178A1 (fr) 2001-06-20
EP1108178A4 EP1108178A4 (fr) 2002-01-02

Family

ID=3809859

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99947084A Withdrawn EP1108178A4 (fr) 1998-09-02 1999-09-02 Ensemble de raccordement a raccorder a un tuyau

Country Status (3)

Country Link
EP (1) EP1108178A4 (fr)
AU (1) AUPP563698A0 (fr)
WO (1) WO2000014445A1 (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001061235A1 (fr) * 2000-02-17 2001-08-23 Heinz, Luna Raccord de tuyauterie
WO2005121624A1 (fr) * 2004-06-10 2005-12-22 Fischer Connectors Holding S.A. Dispositif de fixation d'elements de forme cylindrique
EP2093471B1 (fr) * 2008-02-22 2011-07-06 Hudson Wang Raccord de tuyau d'eau
GB2471502B (en) * 2009-07-02 2011-09-07 Plasson Ltd Pipe coupling
FR3018578B1 (fr) * 2014-03-12 2016-03-04 Raymond A & Cie Dispositif de raccordement avec un verrou de connexion tournant
CN108953807A (zh) * 2018-08-24 2018-12-07 嘉兴市盛央电气有限公司 密封性防震动回旋的软管接头
DE102019111865A1 (de) 2019-05-07 2020-11-12 Illinois Tool Works Inc. Kopplungssystem
JP2020197279A (ja) * 2019-06-05 2020-12-10 住友理工ホーステックス株式会社 コネクタおよびコネクタの組付方法
CN114183611B (zh) * 2021-12-10 2023-08-29 十堰大雄工贸有限公司 一种汽车三通快接插头及其安装和拆卸方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2165163A (en) * 1938-04-25 1939-07-04 Hanlon Waters Inc Pipe coupling
GB1555261A (en) * 1975-06-03 1979-11-07 Lera Holding Sa Manual pipe coupling
DE19524525C1 (de) * 1994-10-25 1996-05-23 Olaf Quinque Als Verdrehsicherung ausgebildete Manschette für eine durch zwei Kuppelungsteile gebildete Schlauchkupplung

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU8246875A (en) * 1974-07-02 1977-01-06 Precision Plastics Ltd Pipe connectors
GB1602077A (en) * 1978-05-31 1981-11-04 Imi Enots Ltd Tube coupling device
BE897329A (fr) * 1982-08-28 1983-11-14 Imi Norgren Enots Ltd Dispositif d'accouplement pivotant pour tubes,
AU570020B2 (en) * 1982-10-23 1988-03-03 Watermain Fittings Pty. Ltd. Pipe connection assembly
US4641861A (en) * 1984-06-01 1987-02-10 O.E.M. Technical Sales, Inc. Flexible joint for pipes
EP0195140B1 (fr) * 1985-03-13 1989-03-08 John Derek Guest Raccords de tuyaux
EP0255368B1 (fr) * 1986-07-30 1990-04-11 John Derek Guest Raccord pour tubes
GB8621782D0 (en) * 1986-09-10 1986-10-15 Robson A R Pipe coupling
AU707930B2 (en) * 1993-07-20 1999-07-22 Philmac Pty Ltd A fitting and a transition means for a polymeric pipe

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2165163A (en) * 1938-04-25 1939-07-04 Hanlon Waters Inc Pipe coupling
GB1555261A (en) * 1975-06-03 1979-11-07 Lera Holding Sa Manual pipe coupling
DE19524525C1 (de) * 1994-10-25 1996-05-23 Olaf Quinque Als Verdrehsicherung ausgebildete Manschette für eine durch zwei Kuppelungsteile gebildete Schlauchkupplung

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO0014445A1 *

Also Published As

Publication number Publication date
AUPP563698A0 (en) 1998-09-24
EP1108178A4 (fr) 2002-01-02
WO2000014445A1 (fr) 2000-03-16

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