WO2009135887A1 - Dispositif et procédé de raccordement de tubes - Google Patents

Dispositif et procédé de raccordement de tubes Download PDF

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Publication number
WO2009135887A1
WO2009135887A1 PCT/EP2009/055502 EP2009055502W WO2009135887A1 WO 2009135887 A1 WO2009135887 A1 WO 2009135887A1 EP 2009055502 W EP2009055502 W EP 2009055502W WO 2009135887 A1 WO2009135887 A1 WO 2009135887A1
Authority
WO
WIPO (PCT)
Prior art keywords
tube
conical element
pressure
internal surface
coupled
Prior art date
Application number
PCT/EP2009/055502
Other languages
English (en)
Inventor
Josep Maria Gaya Altirriba
Original Assignee
Porec Irrigation Systems, S. L.
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 Porec Irrigation Systems, S. L. filed Critical Porec Irrigation Systems, S. L.
Publication of WO2009135887A1 publication Critical patent/WO2009135887A1/fr

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
    • 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
    • F16L25/14—Joints for pipes of different diameters or cross-section

Definitions

  • the present invention relates to a device and a process for connecting tubes, in a specific way, tubes of a different diameter.
  • connection devices for tubes of a different diameter are known.
  • connection is an assembling rigid piece with two cylindrical end openings having a different diameter that are coupled to the internal surface of the respective tube ends.
  • the external diameter of each cylinder corresponds essentially to the internal diameter of each respective tube, although it is lightly larger in order to remain coupled by the pressure to said tube.
  • connection device In order to reduce the necessary force to carry out the connection, said assembling devices often present a series of external ribs in their cylindrical ends that reduce the friction between the tube and the device itself. Nevertheless, it has been proved that said ribs produce leaks, especially in flexible and porous tubes, as they open the pores of said tubes more than it is necessary, and make the liquid circulating through the ducts come out in a undesirable manner.
  • Another type of known connection device is an assembling element similar to the one previously disclosed, although in this case it is formed by two independent elements that can be joined to each other by screwing. Each one of said elements includes a cylindrical end opening with a determined diameter, which is coupled by pressure to the internal surface of the respective tube end.
  • said device allows to easily bond two elements of different sizes for assembling two tubes having a corresponding diameter, in such a manner that it is not necessary to produce a specific assembling device for a combination of tubes having a specific diameter.
  • connection device still presents the same disadvantages as the previous device, with the additional drawback that it is more expensive and voluminous.
  • the object of the present invention is to solve the drawbacks presented by the devices known in the art, providing a tube connection device that comprises assembling means between a first tube and a second tube of a larger diameter than the first tube, characterized in that said assembling means comprise a tubular conical element, the internal surface of which is coupled by pressure to the external surface of said first tube and the external surface of which is coupled by pressure to the internal surface of said second tube.
  • a device that allows the connection of two tubes of a different diameter by means of a single conical piece, having a very simple structure and ease of use, that takes up minimum space and allows the coupling of the tubes by means of a progressive and guided movement, without the need to apply significant forces onto the latter.
  • the device conical element is very easy to produce, and is perfectly integrated into the tubes.
  • the internal surface of the tubular conical element that is coupled by pressure to the external surface of the first tube and the external surface of the tubular conical element that is coupled by pressure to the internal surface of the second tube are smooth.
  • connection device of the invention in combination with the conical geometry of the connection element, allow the connection device of the invention to be specially adapted for its use with, low stiffness, flexible and porous tubes, as the force that must be applied to connect the tubes to the connecting element is substantially reduced and said tubes are guided automatically by the conical shape of the device until these remain coupled to the same.
  • the tubular conical element includes a first narrower end, to whose internal surface the external surface of the first tube is coupled by pressure, and a second wider end to whose external surface the internal surface of the second tube is coupled by pressure.
  • the internal surface of the first end and the external surface of the second end are parallel to the longitudinal axis of the tubular conical element.
  • Said parallel surfaces allow a better adjustment of the element to the tubes, by increasing the contact area between said element and said tubes.
  • the tubular conical element comprises an external wall that extends perpendicularly with respect to the longitudinal axis of said tubular conical element, said external wall being located next to the external surface of the tubular conical element that is coupled by pressure to the internal surface of the second tube.
  • Said external wall acts as a stopper of the second tube, while making the arrangement of the latter in the tubular conical element easier, by avoiding said element to be overly introduced in said tube and by making the posterior disassembly of the device easier.
  • the device for connecting the tubes of the present invention comprises a ring, the internal surface of which is coupled by pressure to the external surface of the second tube, in the area corresponding to the internal surface of said second tube that is coupled by pressure to the external surface of the tubular conical element.
  • Said ring forms a secondary element that allows to improve the sealing between the tube of a large diameter and the tubular conical element, and to increase the mechanical resistance of the connection between both elements.
  • the second tube is a porous material tube.
  • the connection device of the present invention is particularly appropriate for this type of tube, mainly used for irrigating cultures by means of the droplet method.
  • connection process is disclosed between a first tube and a second tube of larger diameter than the first tube, characterized in that it comprises the following steps consisting of:
  • the first tube is introduced inside the tubular conical element through the wider end of said tubular conical element, until the external surface of said first tube is coupled to the internal surface of the narrower end of said tubular conical element by pressure, and the narrower end of the tubular conical element is introduced into the second tube until the internal surface of said second tube is coupled to the external surface of the wider end of said tubular conical element by pressure.
  • connection method turns out to be easy and rapid.
  • both tubes can be coupled by means of a simple operation, by applying low force.
  • connection process includes the additional step consisting of:
  • the arrangement of said ring improves the sealing and the mechanical resistance of the connection.
  • the figures 5 to 12 are a series of diagrammatical views, in perspective and longitudinal section, that show the operation of the device for connecting tubes of the present invention.
  • the main component of the device for connecting tubes 1 of the present invention is a tubular conical piece 2, that presents an internal surface 3 and an external surface 4 both essentially smooth.
  • the conical piece 2 comprises a first end 5 and a second end 6, the first end 5 being narrower than the second end 6.
  • the piece 2 is hollow, and it presents some longitudinal openings 7 and 8 on the ends 5 and 6, respectively.
  • the internal surface 35 corresponding to the first end 5 of the conical piece 2 is parallel to the longitudinal axis L of said piece 2.
  • the external surface 46 corresponding to the second end 6 of the conical piece 2 is also parallel to the longitudinal axis L of said piece 2. Said surfaces 35, 46 present these characteristics in order to allow a better coupling of tubes, as it will be explained as following.
  • the conical piece 2 further comprises a perimetrical external wall P arranged on the end 6 that extends perpendicularly with respect to the longitudinal axis L of said piece 2.
  • the object of the device 1 of the present invention is to allow the connection of two tubes of a different diameter in a fast and simple manner. Following, the operation of the tube connection device 1 of the present invention will be explained in detail, with reference to figures 5 to 12. In figures 5 and 6 the connection device 1 of the present invention can be observed, a first tube 9 and a second tube 10 of larger diameter than the first tube
  • the second tube 10 will be a porous material tube, for example, like those used in drip irrigation.
  • the disclosed embodiment further includes a ring 1 1 , the function of which will be explained hereinafter.
  • the conical piece 2 is firstly placed longitudinally aligned with respect to the first tube 9, then, one of the ends of said tube 9 is introduced into the piece 2 through the opening 8, until the external surface 91 of said tube end 9 comes into contact with the internal surface 35 of the end 5 of the piece 2 and reaches the opening 7 (figures 7 and 8).
  • the opening diameter 7, i.e., of the internal surface 35, will be lightly inferior to the external diameter 91 of the tube 9, in order to obtain a pressure coupling between the external surface 91 of the tube 9 and the internal surface 35 of the piece 2. In this way, the tube 9 and the piece 2 stay secured in such a sealed and safe way, as shown in figures 7 and 8.
  • the end 5 of the piece 2 is introduced in the second tube 10 until the internal surface 101 of said second tube 10 comes into contact with the external surface 46 of the end 6 of piece 2 and the end of said second tube 10 forms a stopper with the wall P.
  • the wall P makes the arrangement of the tube 10 easier, avoiding the piece 2 being overly introduced into the same, which could be detrimental to the quality of the connection and its posterior disassembling.
  • the diameter of the external surface 46 of the piece 2 will be slightly superior to the internal diameter 101 of the tube 10, in order to obtain a pressure coupling between the internal surface 101 of the tube 10 and the external surface 46 of the piece 2. In this way, the tube 10 and the piece 2 remain fastened in a sealed and secured way
  • both tubes 9 and 10 remain connected in a secured and sealed way through the conical piece 2, as it can be noticed in figures 9 and 10.
  • a retention ring 1 1 can be mounted around the tube 10, which press the area wherein the internal surface 101 of said tube 10 and the external surface 46 of the piece 2 remain coupled by pressure (see figures 1 1 and 12).
  • said ring 1 1 allows to improve the sealing of the tube 10 in said area, which tends to suffer more liquid leaks.
  • the device for connecting tubes 1 of the present invention allows to connect two tubes 9, 10 of a different diameter in a fast and effective manner.
  • the internal 3 and external 4 conical surfaces of the connection piece 2 allow to easily drive the tubes 9, 10 until these remain coupled to said surfaces by pressure.
  • connection device 1 takes up a reduced space and is perfectly integrated with tubes 9, 10, in such a way that it can be used in almost any situation.
  • the piece 2 comprises an external perimetrical wall P, said wall could be omitted in another embodiment, so that the piece 2 and the device 1 would even takes up less space.
  • connection device 1 of the present invention which is especially appropriate in provisional connections that require a maximum rapidity of assembly.
  • the tube of less diameter 9 is the first to be coupled to the piece 2
  • the order for coupling said piece 2 and the tubes could be reverse, i.e., the tube of larger diameter 10 could be the first being coupled to the piece 2, the tube of lesser diameter 9 being subsequently coupled to said piece 2.
  • the conical piece 2 will present a purely conical shape, in other words, without the presence of either surfaces 35 and 46 nor perimetrical external wall P, for purposes of simplicity in its production.
  • the conical piece 2 from any suitable material, for example, from plastic, such as polypropylene or polythene.

Landscapes

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

Abstract

Dispositif et procédé de raccordement d’un premier tube (9) et d’un second tube (10) de diamètre supérieur à celui du premier tube (9). Le dispositif et le procédé de l’invention sont basés sur un élément tubulaire conique (2), dont la surface interne (3, 35) est raccordée par pression à la surface externe (91) dudit premier tube (9) et dont la surface externe (4, 46) est raccordée par pression à la surface interne (101) dudit second tube (10).
PCT/EP2009/055502 2008-05-08 2009-05-06 Dispositif et procédé de raccordement de tubes WO2009135887A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ESES200801320P 2008-05-08
ES200801320 2008-05-08

Publications (1)

Publication Number Publication Date
WO2009135887A1 true WO2009135887A1 (fr) 2009-11-12

Family

ID=41055388

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2009/055502 WO2009135887A1 (fr) 2008-05-08 2009-05-06 Dispositif et procédé de raccordement de tubes

Country Status (1)

Country Link
WO (1) WO2009135887A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20170202468A1 (en) * 2016-01-19 2017-07-20 St. Jude Medical, Cardiology Division, Inc. Atraumatic Coupling and Catheter Employing the Same

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE20782E (en) * 1938-07-05 Faucet connecter
DE8804358U1 (de) * 1988-03-31 1988-05-19 Severyns, Horst, 5210 Troisdorf Rohrübergangsstück
US5143408A (en) * 1991-11-22 1992-09-01 Holtsmark Eric B Variable size pipe connector
DE20219220U1 (de) * 2002-12-12 2003-02-27 Buderus Heiztechnik Gmbh, 35576 Wetzlar Anordnung zum Verbinden von Leitungsabschnitten
DE20315084U1 (de) * 2003-09-30 2003-12-18 Zimmermann, Josef Kunststoffformteil zum Reduzieren von Rohrdurchmessern mit diagonal verlaufendem Verbindungssteg
US20060157972A1 (en) * 2005-01-03 2006-07-20 Douglas Catton Inside reducing pipe bushing

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE20782E (en) * 1938-07-05 Faucet connecter
DE8804358U1 (de) * 1988-03-31 1988-05-19 Severyns, Horst, 5210 Troisdorf Rohrübergangsstück
US5143408A (en) * 1991-11-22 1992-09-01 Holtsmark Eric B Variable size pipe connector
DE20219220U1 (de) * 2002-12-12 2003-02-27 Buderus Heiztechnik Gmbh, 35576 Wetzlar Anordnung zum Verbinden von Leitungsabschnitten
DE20315084U1 (de) * 2003-09-30 2003-12-18 Zimmermann, Josef Kunststoffformteil zum Reduzieren von Rohrdurchmessern mit diagonal verlaufendem Verbindungssteg
US20060157972A1 (en) * 2005-01-03 2006-07-20 Douglas Catton Inside reducing pipe bushing

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20170202468A1 (en) * 2016-01-19 2017-07-20 St. Jude Medical, Cardiology Division, Inc. Atraumatic Coupling and Catheter Employing the Same
WO2017127147A1 (fr) * 2016-01-19 2017-07-27 St. Jude Medical, Cardiology Division, Inc. Couplage atraumatique et cathéter utilisant celui-ci
CN108463265A (zh) * 2016-01-19 2018-08-28 圣犹达医疗用品心脏病学部门有限公司 无损伤连接件和采用该无损伤连接件的导管
JP2019503216A (ja) * 2016-01-19 2019-02-07 セント・ジュード・メディカル，カーディオロジー・ディヴィジョン，インコーポレイテッド 非外傷性カップリングおよびそれを使用するカテーテル
US10779741B2 (en) 2016-01-19 2020-09-22 St. Jude Medical, Cardiology Division, Inc. Atraumatic coupling and catheter employing the same
US10952629B2 (en) 2016-01-19 2021-03-23 St. Jude Medical, Cardiology Division, Inc. Atraumatic coupling and catheter employing the same

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