WO1994025786A1 - Quick-action coupling for pipes or hoses - Google Patents
Quick-action coupling for pipes or hoses Download PDFInfo
- Publication number
- WO1994025786A1 WO1994025786A1 PCT/NL1994/000087 NL9400087W WO9425786A1 WO 1994025786 A1 WO1994025786 A1 WO 1994025786A1 NL 9400087 W NL9400087 W NL 9400087W WO 9425786 A1 WO9425786 A1 WO 9425786A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- socket
- socket part
- quick
- action coupling
- ring
- Prior art date
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
- F16L37/091—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
Definitions
- the present invention relates to a quick-action coupling for pipes or hoses according to the preamble of claim 1.
- Such a quick-action coupling is known from British Patent No. 2,071,798.
- the retaining ring has a J-shaped cross- section in the radial direction.
- the long part of the ring (long leg of the J) is threaded on the inside and screwed onto the outside of the also threaded socket part, while the short part of the retaining ring (short leg of the J) projects into the second socket part and in fact serves as a retaining ring.
- the known quick-action coupling has a number of disadvantages. Due to the fact that the retaining ring is screwed onto the outside of the socket, the diameter of the second socket part with the retaining ring screwed onto it is relatively great compared with the first socket part. Moreover, the retaining ring can be unscrewed from the socket relatively easily, which can have serious consequences in a situation in which high temperature and pressure prevail inside the coupling.
- the wall thickness of the socket and the retaining ring must be relatively great, with the result that the coupling becomes heavy, or the socket and the retaining ring have to be made of a high- grade plastic, thereby making the coupling relatively expensive.
- the object of the invention is to provide a coupling of the above entioned type which does not have the above disadvantages.
- This object is achieved by a quick-action coupling having the features listed in claim 1.
- the quick-action coupling according to the invention can be made from a conventional plastic (for example, polyethene or polybutene) and can still be made relatively slim, since the plastic parts of the coupling are enclosed in the metal reinforcing sleeve, with the result that the coupling can undergo little or no defor ⁇ mation in the axial and radial direction under the influence of high temperature and pressure.
- Fig. 1 is a longitudinal section of a quick-action coupling according to the invention, in the form of a right-angled bend;
- Fig. 2 is a longitudinal section of a quick-action coupling according to the invention, in the form of a straight connecting piece;
- Fig. 3 is a longitudinal section of a quick-action coupling according to the invention, in the form of a socket to be screwed onto a pipe end;
- Fig. 4 is a longitudinal section of a quick-action coupling of the type shown in Fig. 3, with a modified embodiment of the retaining ring;
- Figs. 5 and 6 show two possible embodiments of a locking ring of a quick-action coupling according to the invention.
- the quick-action coupling according to the invention shown in Fig. l in the form of a right-angled bend, comprises a plastic housing 1 with two sockets 2 and 3.
- Each socket comprises a first socket part 4 for the essentially close-fitting accommodation of an end (not shown) of a pipe or hose and a second socket part 5 connecting to the first socket part 4 and with a larger internal diameter than the first socket part 4.
- the second socket part Viewed from the first socket part towards the insertion end 6 of the socket, the second socket part contains in succession a locking ring 7, a spacer ring 8, and a sealing ring 9.
- the locking ring 7 is shown only diagra matically here.
- the rings 7, 8 and 9 are held in place by a retaining ring 10 fitted at the insertion end 6 of the socket.
- the retaining ring 10 is situated inside the second socket part 5.
- a metal reinforcing sleeve 11 is disposed on the outside of the second socket part 5.
- This reinforcing sleeve 11, which can be made of, for example, aluminium, is flanged inwards at its one end 12 near the insertion end 6, thereby engaging around the retaining ring 10, and behind the end face 13 of the retaining ring 10 extending essentially in the radial direction.
- the reinforcing ring 11 is also flanged inwards and thereby engages behind a radial shoulder 15 of the socket 2, 3 lying in the transition area between the first socket part 4 and the second socket part 5.
- retaining rings 10 in the two sockets 2 and 3 are designed differently.
- at least two - and preferably four - short ribs 16, running in the peripheral direction and engaging in complementary open slots 17 in the wall of the second socket part 5, are provided on the outside.
- the retaining ring 10 in the socket 3 is provided on the outside with two ribs 18, 19, running over the entire periphery and engaging in complementary grooves 20, 21 on the inside of the second socket part 5.
- the retaining ring 10 can be positioned well during the fitting.
- the quick-action coupling according to the invention shown in Fig. 2 is in the form of a straight connecting piece with two sockets 22 and 23.
- the design of the sockets 22 and 23 differs from that of the sockets 2 and 3 in Fig. 1 in that the shape of the retaining rings 24 is different.
- Each retaining ring 24 is provided on the outer periphery with an essentially radial shoulder 25 which rests against the end face 26 of the second socket part 5.
- the part of the retaining ring 24 situated inside the second socket part 5 is not provided with ribs.
- the positioning of the retaining ring 24 relative to the second socket part 5 during fitting is achieved by means of the radial shoulder 25.
- FIG. 3 and 4 show quick-action couplings according to the invention of the type which can be screwed onto a pipe end (not shown here) by means of screw thread 27.
- These couplings have only one socket.
- the retaining ring 28 of the quick-action coupling of Fig. 3 is provided on the outer periphery with a peripheral rib 29, which engages in a complementary groove on the inside of the second socket part 5, and an essentially radial shoulder 30 behind which the inward flanged end 12 of the reinforcing sleeve 11 engages.
- the retaining ring 28 is also provided with a preferably flexible extension piece 31 extending in the axial direction from the radial shoulder 30, which piece supports the inserted pipe or hose end when it is being bent, so that stress concentrations in the pipe or hose are prevented.
- the design of the socket of the quick-action coupling shown in Fig. 4 corresponds entirely to the design of the socket 3 of the quick-action coupling shown in Fig. 1.
- the internal diameter of the retaining ring 10, 24, 28 is essentially the same as the internal diameter of the first socket part 4.
- the inside of the retaining ring serves as a guide for a pipe or hose end to be inserted.
- Figures 5 and 6 show two possible embodiments of the locking ring 7 of the quick-action coupling according to the invention.
- the inward slanting part 32 of the locking rings 7 consists of a number of lips or teeth 33 which are slightly flexible. These lips or teeth 33 are bent outwards slightly during the insertion of a pipe or hose end. During withdrawal of the pipe or hose end, the lips or teeth 33 engage in the outside wall of the pipe or hose and thereby ensure that the pipe or hose cannot be pulled out any further. In order to make it still possible for the inserted pipe or hose end to be removed from the coupling again, the teeth or lips 33 are made saw-toothed in the known manner, so that they form a sort of "screw thread" on engagement in the pipe or hose. The inserted pipe or hose can be “screwed" out of the coupling by turning the inserted pipe or hose.
- the locking ring 7 can be provided with a number of flexible lips, running in the same tangential direction and, depending on the type of locking ring, projecting axially or radially at an angle from the external surface of the locking ring. These flexible lips are indicated by 34 in Fig. 5 and by 35 in Fig. 6.
- the flexible lips 34 are disposed on the end face 36 of the locking ring 7 facing the first socket part 5-.
- the flexible lips 35 are disposed on the outer periphery of the locking ring 7.
- the free end of a flexible lip 34, 35 can knock against a projection disposed in the second socket part 5 when an inserted pipe or hose end is being unscrewed from a socket, with the result that further turning of the locking ring is prevented.
- a projection is indicated by 39 in Fig. 3. If there is a projection 39, the locking ring 7 must be of the type shown in Fig. 5. When a locking ring 7 of the type shown in Fig. 6 is used, the projection must be disposed at the position of the locking ring on the inside wall of the second socket part 5.
- a locking ring 7 of the type shown here, having flexible lips 34, 35 disposed on the outside, can be used not only in the quick-action coupling according to the invention described above, but also in other types of quick-action couplings in which a locking ring is provided.
- the locking ring may be made up of several coaxial partial rings.
- the invention is not limited to the embodiments of the quick-action coupling according to the invention described above and shown in the drawing.
- the retaining ring can be a different shape, while the reinforcing sleeve 11 can also be designed differently, for example without inward flanged end at the position of the transition between the first and second socket part.
- the locking ring can also be in a different form.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL94311222A PL174179B1 (en) | 1993-04-29 | 1994-04-25 | Quick-release coupling for pipes or hoses |
AU67616/94A AU673928B2 (en) | 1993-04-29 | 1994-04-25 | Quick-action coupling for pipes or hoses |
JP6524116A JPH08510535A (en) | 1993-04-29 | 1994-04-25 | Quick fittings for pipes or hoses |
DE69401652T DE69401652T3 (en) | 1993-04-29 | 1994-04-25 | QUICK COUPLING FOR TUBES OR HOSES |
EP94915701A EP0696342B2 (en) | 1993-04-29 | 1994-04-25 | Quick-action coupling for pipes or hoses |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL9300734 | 1993-04-29 | ||
NL9300734A NL9300734A (en) | 1993-04-29 | 1993-04-29 | Shortcut for pipes or hoses. |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1994025786A1 true WO1994025786A1 (en) | 1994-11-10 |
Family
ID=19862348
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/NL1994/000087 WO1994025786A1 (en) | 1993-04-29 | 1994-04-25 | Quick-action coupling for pipes or hoses |
Country Status (11)
Country | Link |
---|---|
EP (1) | EP0696342B2 (en) |
JP (1) | JPH08510535A (en) |
AT (1) | ATE148544T1 (en) |
AU (1) | AU673928B2 (en) |
DE (1) | DE69401652T3 (en) |
DK (1) | DK0696342T3 (en) |
ES (1) | ES2100063T5 (en) |
HU (1) | HU214402B (en) |
NL (1) | NL9300734A (en) |
PL (1) | PL174179B1 (en) |
WO (1) | WO1994025786A1 (en) |
Cited By (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL9500045A (en) * | 1995-01-10 | 1996-08-01 | Wavin Bv | Quick-acting coupling for pipes or hoses |
AT1793U1 (en) * | 1996-06-11 | 1997-11-25 | Geberit Technik Ag | MUFFLE FOR COMPOSITE TUBES OR TUBES MADE OF PLASTIC |
EP0897082A1 (en) * | 1997-08-14 | 1999-02-17 | Marley Tile AG | Push fit tube couplings |
FR2777341A1 (en) * | 1998-04-08 | 1999-10-15 | Comap | Instantaneous quick-fit type connector for pipework e.g. water, central heating |
NL1010726C2 (en) * | 1998-12-04 | 2000-06-06 | Wavin Bv | Sealing ring and pipe connection element with a sealing ring. |
GB2376994A (en) * | 2001-05-04 | 2002-12-31 | Polypipe Building Products Ltd | Pipe coupling |
GB2378993A (en) * | 2001-08-20 | 2003-02-26 | Hepworth Building Prod | Push-fit pipe coupling |
GB2381054A (en) * | 2001-10-11 | 2003-04-23 | Polysleeve Products Ltd | A pipe fitting |
DE10161372C1 (en) * | 2001-12-14 | 2003-06-18 | Seppelfricke Armaturen Gmbh & | Connectors for plastic pipes |
WO2003062694A1 (en) * | 2002-01-25 | 2003-07-31 | Simag, Blazenka | Compression pipe coupling |
WO2005093267A1 (en) * | 2004-03-17 | 2005-10-06 | Dorma Gmbh & Co. Kg | Tensile connection between two components with adjacent front faces |
WO2006106317A1 (en) * | 2005-04-02 | 2006-10-12 | Norgren Limited | Tube coupling |
US7455330B2 (en) * | 2005-04-28 | 2008-11-25 | Kulm Holding Ag | Quick coupling |
US20110025054A1 (en) * | 2009-08-03 | 2011-02-03 | Gsa Industries (Aust.) Pty. Ltd. | Pipe coupling |
US8303001B2 (en) * | 2009-01-13 | 2012-11-06 | Kofulso Co., Ltd. | Pipe connector |
CN103429942A (en) * | 2011-03-03 | 2013-12-04 | Gsa工业(澳大利亚)私人有限公司 | Conduit coupling |
US8801048B2 (en) | 2012-11-27 | 2014-08-12 | Charlotte Pipe And Foundry Company | Mechanical pipe coupling assembly without adhesive or bonding agent |
WO2015100510A1 (en) | 2013-12-31 | 2015-07-09 | Trefimet S.A. | Quick-coupling device comprising a hollow cylinder having bevelled ends and two circular internal grooves |
US9611958B1 (en) * | 2007-01-05 | 2017-04-04 | Zurn Industries, Llc | Combination mechanical/fusion pipe fitting with push connect coupling arrangement |
US11149426B2 (en) | 2019-06-12 | 2021-10-19 | Charlotte Pipe And Foundry Company | Toilet assembly having improved closet flange |
EP3896324A4 (en) * | 2018-12-10 | 2022-08-31 | Bridgestone Corporation | Pipe joint and engaging member |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1655529B1 (en) | 2004-11-08 | 2008-10-29 | Kulm Holding Ag | Quick connector |
JP6939193B2 (en) * | 2017-07-27 | 2021-09-22 | 株式会社オンダ製作所 | Resin elbow fittings and piping covers |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1551628A (en) * | 1977-02-11 | 1979-08-30 | Automotive Prod Co Ltd | Hose coonector |
GB2071798A (en) * | 1980-03-11 | 1981-09-23 | Hepworth Plastics Ltd | Pipe couplings |
GB2155576A (en) * | 1984-03-09 | 1985-09-25 | Hepworth Plastics Ltd | Pipe couplings |
GB2164112A (en) * | 1984-09-06 | 1986-03-12 | Victaulic Plc | Pipe coupling |
GB2245945A (en) * | 1990-07-11 | 1992-01-15 | Hepworth Building Prod | Push-fit pipe couplings |
GB2249367A (en) * | 1990-09-18 | 1992-05-06 | Push Lok | Push fit pipe coupling |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2258585B1 (en) † | 1974-01-17 | 1977-06-10 | Legris France Sa | |
GB1486671A (en) † | 1975-01-25 | 1977-09-21 | Hepworth Plastics Ltd | Pipe couplings |
GB1520150A (en) † | 1975-11-14 | 1978-08-02 | Hepworth Plastics Ltd | Pipe couplings |
GB1556008A (en) † | 1978-05-09 | 1979-11-14 | Hepworth Plastics Ltd | Pipe couplings |
DE3612689A1 (en) † | 1985-04-29 | 1986-10-30 | Dana Corp., Toledo, Ohio | QUICK CONNECT FITTING |
DE3525502A1 (en) † | 1985-07-17 | 1987-01-29 | Helmut Hackel | Sealing pipe plug-in connection |
IT1216491B (en) † | 1988-03-22 | 1990-03-08 | Finimpresa Spa | QUICK CONNECTION FITTING FOR FLEXIBLE HOSES WITH CONICAL RETAINING RING. |
WO1991007617A1 (en) † | 1989-11-08 | 1991-05-30 | Manifold Systems, Inc. | High pressure pipe coupling |
JPH073119Y2 (en) * | 1989-11-20 | 1995-01-30 | シーケーディ株式会社 | Pipe fitting |
-
1993
- 1993-04-29 NL NL9300734A patent/NL9300734A/en not_active Application Discontinuation
-
1994
- 1994-04-25 AT AT94915701T patent/ATE148544T1/en not_active IP Right Cessation
- 1994-04-25 WO PCT/NL1994/000087 patent/WO1994025786A1/en active IP Right Grant
- 1994-04-25 JP JP6524116A patent/JPH08510535A/en active Pending
- 1994-04-25 EP EP94915701A patent/EP0696342B2/en not_active Expired - Lifetime
- 1994-04-25 HU HU9503076A patent/HU214402B/en not_active IP Right Cessation
- 1994-04-25 DK DK94915701.0T patent/DK0696342T3/en active
- 1994-04-25 DE DE69401652T patent/DE69401652T3/en not_active Expired - Fee Related
- 1994-04-25 ES ES94915701T patent/ES2100063T5/en not_active Expired - Lifetime
- 1994-04-25 PL PL94311222A patent/PL174179B1/en unknown
- 1994-04-25 AU AU67616/94A patent/AU673928B2/en not_active Ceased
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1551628A (en) * | 1977-02-11 | 1979-08-30 | Automotive Prod Co Ltd | Hose coonector |
GB2071798A (en) * | 1980-03-11 | 1981-09-23 | Hepworth Plastics Ltd | Pipe couplings |
GB2155576A (en) * | 1984-03-09 | 1985-09-25 | Hepworth Plastics Ltd | Pipe couplings |
GB2164112A (en) * | 1984-09-06 | 1986-03-12 | Victaulic Plc | Pipe coupling |
GB2245945A (en) * | 1990-07-11 | 1992-01-15 | Hepworth Building Prod | Push-fit pipe couplings |
GB2249367A (en) * | 1990-09-18 | 1992-05-06 | Push Lok | Push fit pipe coupling |
Cited By (26)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL9500045A (en) * | 1995-01-10 | 1996-08-01 | Wavin Bv | Quick-acting coupling for pipes or hoses |
AT1793U1 (en) * | 1996-06-11 | 1997-11-25 | Geberit Technik Ag | MUFFLE FOR COMPOSITE TUBES OR TUBES MADE OF PLASTIC |
EP0897082A1 (en) * | 1997-08-14 | 1999-02-17 | Marley Tile AG | Push fit tube couplings |
FR2777341A1 (en) * | 1998-04-08 | 1999-10-15 | Comap | Instantaneous quick-fit type connector for pipework e.g. water, central heating |
NL1010726C2 (en) * | 1998-12-04 | 2000-06-06 | Wavin Bv | Sealing ring and pipe connection element with a sealing ring. |
EP1006305A1 (en) * | 1998-12-04 | 2000-06-07 | Wavin B.V. | Sealing ring and pipe-connecting element having a sealing ring |
GB2376994B (en) * | 2001-05-04 | 2005-03-02 | Polypipe Building Products Ltd | A Pipe coupling having a reinforcing element |
GB2376994A (en) * | 2001-05-04 | 2002-12-31 | Polypipe Building Products Ltd | Pipe coupling |
GB2378993A (en) * | 2001-08-20 | 2003-02-26 | Hepworth Building Prod | Push-fit pipe coupling |
GB2378993B (en) * | 2001-08-20 | 2004-12-01 | Hepworth Building Prod | Pipe fitting with means for preventing incorrect installation |
GB2381054A (en) * | 2001-10-11 | 2003-04-23 | Polysleeve Products Ltd | A pipe fitting |
DE10161372C1 (en) * | 2001-12-14 | 2003-06-18 | Seppelfricke Armaturen Gmbh & | Connectors for plastic pipes |
WO2003062694A1 (en) * | 2002-01-25 | 2003-07-31 | Simag, Blazenka | Compression pipe coupling |
WO2005093267A1 (en) * | 2004-03-17 | 2005-10-06 | Dorma Gmbh & Co. Kg | Tensile connection between two components with adjacent front faces |
WO2006106317A1 (en) * | 2005-04-02 | 2006-10-12 | Norgren Limited | Tube coupling |
US7455330B2 (en) * | 2005-04-28 | 2008-11-25 | Kulm Holding Ag | Quick coupling |
US9611958B1 (en) * | 2007-01-05 | 2017-04-04 | Zurn Industries, Llc | Combination mechanical/fusion pipe fitting with push connect coupling arrangement |
US8303001B2 (en) * | 2009-01-13 | 2012-11-06 | Kofulso Co., Ltd. | Pipe connector |
US20110025054A1 (en) * | 2009-08-03 | 2011-02-03 | Gsa Industries (Aust.) Pty. Ltd. | Pipe coupling |
CN103429942A (en) * | 2011-03-03 | 2013-12-04 | Gsa工业(澳大利亚)私人有限公司 | Conduit coupling |
CN103429942B (en) * | 2011-03-03 | 2016-04-06 | Gsa工业(澳大利亚)私人有限公司 | Pipe joint |
US8801048B2 (en) | 2012-11-27 | 2014-08-12 | Charlotte Pipe And Foundry Company | Mechanical pipe coupling assembly without adhesive or bonding agent |
US9568127B2 (en) | 2012-11-27 | 2017-02-14 | Charlotte Pipe And Foundry Company | Mechanical pipe coupling assembly without adhesive or bonding agent |
WO2015100510A1 (en) | 2013-12-31 | 2015-07-09 | Trefimet S.A. | Quick-coupling device comprising a hollow cylinder having bevelled ends and two circular internal grooves |
EP3896324A4 (en) * | 2018-12-10 | 2022-08-31 | Bridgestone Corporation | Pipe joint and engaging member |
US11149426B2 (en) | 2019-06-12 | 2021-10-19 | Charlotte Pipe And Foundry Company | Toilet assembly having improved closet flange |
Also Published As
Publication number | Publication date |
---|---|
PL311222A1 (en) | 1996-02-05 |
HU9503076D0 (en) | 1995-12-28 |
DE69401652T2 (en) | 1997-06-05 |
EP0696342B2 (en) | 2001-05-02 |
NL9300734A (en) | 1994-11-16 |
DE69401652D1 (en) | 1997-03-13 |
PL174179B1 (en) | 1998-06-30 |
DK0696342T3 (en) | 1997-08-18 |
HUT73687A (en) | 1996-09-30 |
AU673928B2 (en) | 1996-11-28 |
HU214402B (en) | 1998-03-30 |
JPH08510535A (en) | 1996-11-05 |
DE69401652T3 (en) | 2001-09-06 |
AU6761694A (en) | 1994-11-21 |
ES2100063T3 (en) | 1997-06-01 |
ATE148544T1 (en) | 1997-02-15 |
ES2100063T5 (en) | 2001-09-01 |
EP0696342A1 (en) | 1996-02-14 |
EP0696342B1 (en) | 1997-01-29 |
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