• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    It is a plug-in coupling for a pipe (3), in particular for water pipes, with the pipe end (2) receiving the coupling sleeve (1), with a in the coupling sleeve (1) inserted sealing ring (4), with a sealing ring (4) in Insertion direction of the pipe end (2) upstream locking ring (6) which projects against the pipe end (2), inclined in the insertion direction retaining claws (7), and with a sealing ring (4) also upstream, opposite the coupling sleeve (1) in the insertion direction axially supported ring body described. In order to create advantageous design conditions, it is proposed that the annular body has a guard ring (12) connected via a predetermined breaking connection (13) for enclosing the end face of the pipe end (2) from the outside.
    公开号:AT512772A4
    申请号:T50371/2012
    申请日:2012-09-10
    公开日:2013-11-15
    发明作者:
    申请人:Ke Kelit Kunststoffwerk Gmbh；
    IPC主号:
    专利说明:

    1
    (38808) II
    The invention relates to a plug-in coupling for a pipe, in particular for water pipes, with a pipe sleeve receiving the coupling sleeve, with a sealing ring inserted into the coupling sleeve, with a sealing ring in the insertion of the pipe end upstream locking ring, the projecting towards the pipe end, inclined in the insertion direction Forming retaining claws, and with the sealing ring also upstream, opposite the coupling sleeve in the insertion direction axially supported annular body.
    In order to be able to provide a plug-in coupling for a pipe connection in a simple manner, it is known (EP 2 336 625 A2) to provide a locking ring in a coupling sleeve receiving the inserted pipe end with the interposition of a sealing ring, which has retaining ridges protruding toward the pipe end and inclined in the plug-in direction which, when trying to pull the pipe end out of the coupling sleeve, tilt on the outer casing of the pipe end and thereby build up a corresponding resistance against pulling the pipe end out of the coupling sleeve. Due to the selected inclination, the retaining claws are acted upon by a pipe load in the direction of withdrawal with a tendency to reverse torque, which ensures an increase of the contact pressure of the sharp-edged retaining claws on the outer surface of the pipe end and thus for a safe self-locking with increasing pull-out. This requires a corresponding support of the locking ring in the axial direction. This axial support can advantageously be effected via a spacer ring. In addition, a ring body can be provided as an insertion aid for the pipe end.
    Since, in particular on construction sites, it must be expected that the pipe ends to be connected will not be adequately adjusted during or after cutting to length.
    4Mf- lOHX are working, there is a risk that when inserting the pipe end into the coupling sleeve of the locking ring downstream sealing ring is damaged by the end face of the pipe end.
    In order to avert a risk of damage to the sealing ring, it is known in a plug connection with a connection nipple for pushing the pipe to be connected and a sleeve enclosing the deferred pipe (EP 1 219 883 A2), to provide an axially displaceable protection ring on the connection nipple receiving the sealing ring. covering the sealing ring and having a radially outwardly projecting dog lug on the rear end in the insertion direction, so that when sliding the pipe end on the connecting nipple, the end face of the pipe end along the guard ring slides over the sealing ring until the end face of the pipe end abuts on Mitnehmeranschlag. The guard ring is then taken from the pipe end and subsequently removed axially by the sealing ring with the effect that the sealing ring seals the annular gap between the connection nipple and the pushed-tube end. Apart from the fact that such a protective ring significantly increases the design effort in a plug-in with the inserted pipe end receiving coupling sleeve, resulting in Steckkuppiungen this kind of space difficulties for the arrangement of a guard ring.
    The invention is therefore based on the object, a plug-in coupling of the type described in such a way that under simple handling and design conditions, a risk of damage to the sealing ring can be excluded by the end face of the pipe to be connected.
    The invention achieves the stated object in that the annular body has a guard ring connected via a predetermined breaking connection for encompassing the end face of the pipe end from the outside.
    By connecting the guard ring with an already existing ring body, a considerable design simplification is initially achieved because no additional design part is required. Thus, the otherwise pending space problem can be solved advantageous because the space requirement can be minimized by the summary of the guard ring with an existing ring body. The connection of the guard ring to the ring body via a predetermined breaking connection not only ensures the entrainment of the guard ring when the end of the pipe end is inserted into the coupling sleeve and separates the guard ring from the ring body, as soon as the comprehensive end guard ring is taken from the pipe end in the axial direction, but also simplifies handling, because the guard ring does not form a loose component and therefore the coupling sleeve is assigned in a constructively predetermined mounting position. The end face of the pipe end from the outside comprehensive guard ring thus forms a Mitnehmeranschlag, which ensures after the separation of the guard ring from the ring body that the end face and the subsequent outer edge of the pipe end comprehensive guard ring when passing the end face of the pipe end on the sealing ring the sealing ring opposite the pipe end covering, so that the pipe end can not damage the sealing ring with its front side area. With the displacement of the pipe end in a usually stop-limited insertion position of the guard ring is withdrawn from the sealing ring, which can then create a seal under a corresponding bias to the outer surface of the pipe end.
    To entrain the guard ring and protect the seal ring, it only requires gripping the end face of the pipe end by the guard ring. The entrainment of the guard ring through the pipe end is improved, however, if the guard ring has a U-shaped cross-section, resulting in that the guard ring engages over the end pipe end from the outside and inside.
    As already stated, an already existing annular body is used to hold the guard ring via a predetermined breaking connection in an advantageous for the insertion of the pipe end in the coupling sleeve fishing position, in which the end face of the pipe end connects to the guard ring. The ring body can form a spacer ring for the locking ring. But it is also possible that the 4
    Guard ring having ring body is an insertion aid for the pipe end. The guard ring can be positioned over the ring body in the insertion both before and after the locking ring. If the guard ring is provided for the end face of the pipe end between the locking ring and the sealing ring, then the guard ring need not be moved over the sharp-edged retaining claws of the locking ring. The guard ring can also be carried by a locking ring upstream in the insertion annular body when the retaining claws of the locking ring protrude through corresponding passage openings in the region of the connecting portion between the locking ring upstream ring body and the locking ring downstream protection ring.
    If an axial stop limiting the insertion depth is provided for the tube end to be inserted into the coupling sleeve, then it should be ensured that the axial distance of the stop from the sealing ring is greater than the axial height of the guard ring on the outside of the tube end, so that the protective ring in the Stop position of the pipe end is completely deducted from the sealing ring.
    In the drawing, the subject invention is shown, for example. Show it
    1 shows a plug-in coupling according to the invention before the insertion of a pipe to be connected in a simplified axial section,
    1 corresponding representation of this plug-in coupling after insertion of the pipe end into the coupling sleeve, and FIG. 3 a representation corresponding to FIG. 1 of an embodiment of a plug-in coupling according to the invention.
    The plug-in coupling according to the embodiment according to FIGS. 1 and 2 has a coupling sleeve 1 into which the pipe end 2 of a pipe 3 to be connected can be inserted. The seal between the coupling sleeve 1 and the outer casing of the pipe end 2 via a sealing ring 4, which is supported on a shoulder 5 of the coupling sleeve 1 in the insertion direction. The inserted into the coupling sleeve 1 pipe end 2 is held axially by means of the sealing ring 4 5 upstream locking ring 6 against a withdrawal from the coupling sleeve 1. For this purpose, the locking ring 6 retaining claws 7, which extend inclined in the insertion direction and invest with their sharp-edged faces on the outer surface of the pipe end 2 resilient, so that the retaining claws 7 in an attempt to pull the pipe end 2 of the coupling sleeve 1, the pipe end Hold axially under a self-locking mechanism. The axial support of the locking ring 6 via spacer rings 8 and 9, wherein the spacer ring between the sealing ring 4 and the locking ring 6 secures the position of the sealing ring 4 relative to the locking ring 6, while the spacer ring 9 takes over the axial support of the locking ring 6 relative to the coupling sleeve 1 , The coupling sleeve 1 has for this purpose a retracted edge 10, which is crimped after insertion of the sealing ring 4 and the locking ring 6 with the spacers 8 and 9. For easier insertion of the pipe end 2 in the coupling sleeve 1, a sleeve-like insertion 11 is provided in the formed by the retracted edge 10 of the coupling sleeve 1 insertion.
    If the pipe end 2 is inserted into the coupling sleeve 1 for connection of a pipe 3, there is the danger that the pipe end 2 with its end face the sealing ring, in particular if the end face of the pipe end 2, especially a metal tube 3 was not processed accordingly 4 damaged. In order to exclude such a risk of damage, a protective ring 12 is provided which comprises the end face of the pipe end 2 from the outside and therefore covers the sealing ring 4 with respect to the end face of the pipe end 2, when the pipe end 2 with the deferred guard ring 2 is passed over the sealing ring 4.
    Thus, the guard ring 12, which advantageously has a U-shaped cross-section, which is not mandatory, can be held in a structurally predetermined position for receiving the end face of the pipe end 2, the guard ring 12 is connected via a predetermined breaking connection 13 to the sleeve-shaped insertion 11 angeiossen , This predetermined breaking connection 13 can be solved differently in design and has the task of releasing the guard ring 12 as soon as the guard ring 12 is impacted in the axial direction via the abutting end face of the pipe end 2, so that the guard ring 12 engages with the guard ring 12 Pipe end 2 taken and passed over the sealing ring 4 until the end face of the pipe end 2 as shown in FIG. 2 abuts against a stop formed by a constriction 14 of the coupling sleeve 1. The pulled over the sealing ring 4 guard ring 12 does not hinder the seal between the pipe end 2 and the coupling sleeve 1, because the sealing ring 4 rests directly on the outer surface of the pipe end 2 after moving past the guard ring 12.
    According to the embodiment of FIGS. 1 and 2, the guard ring 12 is in the insertion direction in front of the locking ring 6. The guard ring 12 must therefore be carried over the retaining pawls 7 of the locking ring 6 during insertion of a pipe end 2 in the coupling sleeve 1. If this circumstance is to be avoided, the protective ring 12 can also come to rest between the locking ring 6 and the sealing ring 4. For this purpose, the guard ring 12 can be assigned to the spacer ring 8 via a predetermined breaking connection. According to FIG. 3, the sleeve-shaped insertion aid 11 also carries the protective ring 12 provided between the locking ring 6 and the sealing ring 4, wherein the sleeve-shaped insertion aid 11 between the retaining claws 7 of the locking ring 6 by cross-fingers 15 for holding the guard ring 12 forms. In such an embodiment, however, the guard ring 12 must be sufficiently elastic with the fingers 15 to be able to introduce it past the retaining claws 7 during assembly of the sleeve-shaped insertion aid. For this purpose, a slotted guard ring 12 may be provided.
    权利要求:
    Claims (6)
    [1]
    IPrinted: 11 -09: 102012/50371 Patent Attorneys Dipl.-Ing. Helmut Hübscher Dipl.-Ing. 1. Winch coupling for a pipe (3), in particular for water pipes, with a pipe sleeve (2) receiving the coupling sleeve (1), with a in the coupling sleeve (1 ) used with a sealing ring (4) in the insertion direction of the pipe end (2) upstream locking ring (6) which forms against the pipe end (2) projecting in the insertion direction retaining claws (7), and with a sealing ring (4) also upstream, relative to the coupling sleeve (1) in the insertion direction axially supported annular body, characterized in that the annular body via a predetermined breaking connection (13) connected guard ring (12) for embracing the end face of the pipe end (2) from the outside.
    [2]
    2. Plug-in coupling according to claim 1, characterized in that the guard ring (12) has a U-shaped cross-section.
    [3]
    3. Plug-in coupling according to claim 1 or 2, characterized in that the guard ring (12) having annular body a spacer ring (8, 9) for the locking ring (6).
    [4]
    4. Plug-in coupling according to claim 1 or 2, characterized in that the guard ring (12) having annular body forms an insertion aid (11) for the pipe end (2).
    [5]
    5. Plug-in coupling according to one of claims 1 to 4, characterized in that the protective ring (12) for the end face of the pipe end (2) between the locking ring (6) and the sealing ring (4) is provided.

    1.0 2012/50371 iPrinted: 11-09-2012 2
    [6]
    6. Plug-in coupling according to one of claims 1 to 5, characterized in that the coupling sleeve (1) for the pipe end (2) forms an axial stop whose axial distance from the sealing ring (4) greater than the axial height of the guard ring (12) the outside of the pipe end (2). Linz, September 10, 2012 KE KELIT Kunststoffwerk Gesellschaft m.b.H. by: / Dl Helmut Hübscher / (electronically signed)
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    同族专利:
    公开号 | 公开日
    JP6138941B2|2017-05-31|
    JP2015531459A|2015-11-02|
    AT512772B1|2013-11-15|
    EP2706279A1|2014-03-12|
    US9857009B2|2018-01-02|
    NZ701897A|2017-08-25|
    AU2013313005B2|2018-07-19|
    WO2014036587A1|2014-03-13|
    AU2013313005A1|2014-11-20|
    CN104364571B|2017-05-24|
    SG10201700668TA|2017-02-27|
    EP2706279B1|2016-05-25|
    US20150137515A1|2015-05-21|
    SG11201408454YA|2015-02-27|
    CN104364571A|2015-02-18|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    EP1081423A1|1999-08-17|2001-03-07|Franz Viegener II GmbH & Co. KG.|Method and preformed part for manufacturing a press-fitting connection between two pipes|
    EP2085673A1|2008-01-30|2009-08-05|Wavin B.V.|Pipe joint structure|
    EP2336625A2|2009-12-16|2011-06-22|GSA Industries Pty Ltd|A tube coupling|
    US4123090A|1976-07-19|1978-10-31|Imperial-Eastman Corporation|Push-pull fitting|
    AU567157B2|1983-04-11|1987-11-12|Imi Australia Operations Pty. Ltd.|Push-in pipe joint with clow type ring|
    DE10065225B4|2000-12-27|2005-09-22|Fränkische Rohrwerke Gebr. Kirchner GmbH + Co. KG|joint assembly|
    FR2830071B1|2001-09-21|2003-11-14|Legris Sa|INSTANT CONNECTION DEVICE|
    DE10321301B3|2003-05-08|2004-09-30|Mapress Gmbh & Co. Kg|Pipe connection used as a plug-in fitting comprises a fitting provided with a sealing element in the insertion region and receiving a conduit which is sealed and axially secured without a compression tool|
    JP2005090531A|2003-09-12|2005-04-07|Mym Corp|Pipe joint|
    DE202006002434U1|2006-02-16|2006-04-27|Gebrüder Beul GmbH & Co. KG|Connector for pipes in bathroom and heating systems comprises sealing sleeve which slides down in socket as pipe is inserted, tabs on its outer edge indicating when it is fully pushed down to correct position|
    JP2008025819A|2006-07-24|2008-02-07|Sanyo Seisakusho:Kk|Joint|
    JP4977527B2|2007-05-29|2012-07-18|株式会社オンダ製作所|Fitting|
    CN201382226Y|2009-01-23|2010-01-13|玉环江林水暖管业有限公司|Quick joint|
    JP5486895B2|2009-10-21|2014-05-07|アロン化成株式会社|Pipe fitting|
    JP5334792B2|2009-10-21|2013-11-06|アロン化成株式会社|Pipe fitting|
    JP5551039B2|2010-09-30|2014-07-16|積水化学工業株式会社|Pipe fitting|
    CN202048286U|2011-04-08|2011-11-23|童撮洪|Insertion quick connector|CN105917154B|2013-12-19|2018-06-22|诚信全球公司（澳大利亚）私人有限公司|Pipe connects accessory|
    NL2015413B1|2015-09-08|2017-03-22|Vsh Fittings B V|Press fitting for pipes having a check ring.|
    CN106151735B|2016-08-01|2018-01-09|浙江工业大学|A kind of pipeline fast joint|
    US9664316B1|2016-11-03|2017-05-30|Quick Fitting, Inc.|Press fitting device, components and method|
    CN109253336B|2016-12-31|2020-03-31|王驰|Quick joint for metal pipe|
    US10400929B2|2017-09-27|2019-09-03|Quick Fitting, Inc.|Fitting device, arrangement and method|
    CA3115847A1|2018-10-09|2020-04-16|Zhuji City Howhi Air Conditioners Made Co., Ltd.|Anti-off steel ring and fixed sealing device for snap-fit pipe fitting|
    US10969047B1|2020-01-29|2021-04-06|Quick Fitting Holding Company, Llc|Electrical conduit fitting and assembly|
    US11035510B1|2020-01-31|2021-06-15|Quick Fitting Holding Company, Llc|Electrical conduit fitting and assembly|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    ATA50371/2012A|AT512772B1|2012-09-10|2012-09-10|Plug-in coupling for a metallic pipe, in particular for water pipes|ATA50371/2012A| AT512772B1|2012-09-10|2012-09-10|Plug-in coupling for a metallic pipe, in particular for water pipes|
    EP13174684.4A| EP2706279B1|2012-09-10|2013-07-02|Plug-in coupling for a metallic pipe, in particular for water pipes|
    NZ701897A| NZ701897A|2012-09-10|2013-09-09|Plug-in coupling for a pipe, in particular for water conduits|
    SG11201408454YA| SG11201408454YA|2012-09-10|2013-09-09|Plug-in coupling for a pipe, in particular for water conduits|
    PCT/AT2013/050177| WO2014036587A1|2012-09-10|2013-09-09|Plug-in coupling for a pipe, in particular for water conduits|
    CN201380031413.XA| CN104364571B|2012-09-10|2013-09-09|Plug-in coupling for a pipe, in particular for water conduits|
    US14/404,170| US9857009B2|2012-09-10|2013-09-09|Plug-in coupling for a pipe, in particular for water conduits|
    SG10201700668TA| SG10201700668TA|2012-09-10|2013-09-09|Plug-in coupling for a pipe, in particular for water conduits|
    JP2015530239A| JP6138941B2|2012-09-10|2013-09-09|Plug-in fittings for conduits, especially water conduits|
    AU2013313005A| AU2013313005B2|2012-09-10|2013-09-09|Plug-in coupling for a pipe, in particular for water conduits|
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