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WO2008151596A2 - Raccord à fermeture rapide - Google Patents

Raccord à fermeture rapide Download PDF

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Publication number
WO2008151596A2
WO2008151596A2 PCT/DE2008/000878 DE2008000878W WO2008151596A2 WO 2008151596 A2 WO2008151596 A2 WO 2008151596A2 DE 2008000878 W DE2008000878 W DE 2008000878W WO 2008151596 A2 WO2008151596 A2 WO 2008151596A2
Authority
WO
WIPO (PCT)
Prior art keywords
coupling
valve
ring
quick
shut
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.)
Ceased
Application number
PCT/DE2008/000878
Other languages
German (de)
English (en)
Other versions
WO2008151596A3 (fr
Inventor
Horst Marmann
Reinhardt Bayer
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.)
Beda Oxygentechnik Armaturen GmbH
Original Assignee
Beda Oxygentechnik Armaturen GmbH
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 Beda Oxygentechnik Armaturen GmbH filed Critical Beda Oxygentechnik Armaturen GmbH
Publication of WO2008151596A2 publication Critical patent/WO2008151596A2/fr
Publication of WO2008151596A3 publication Critical patent/WO2008151596A3/fr
Anticipated expiration legal-status Critical
Ceased 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
    • F16L37/10—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members using a rotary external sleeve or ring on one part
    • F16L37/107—Bayonet-type couplings
    • 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
    • F16L37/28—Couplings of the quick-acting type with fluid cut-off means
    • F16L37/30—Couplings of the quick-acting type with fluid cut-off means with fluid cut-off means in each of two pipe-end fittings
    • F16L37/32—Couplings of the quick-acting type with fluid cut-off means with fluid cut-off means in each of two pipe-end fittings at least one of two lift valves being opened automatically when the coupling is applied
    • 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
    • F16L37/28—Couplings of the quick-acting type with fluid cut-off means
    • F16L37/30—Couplings of the quick-acting type with fluid cut-off means with fluid cut-off means in each of two pipe-end fittings
    • F16L37/36—Couplings of the quick-acting type with fluid cut-off means with fluid cut-off means in each of two pipe-end fittings with two lift valves being actuated to initiate the flow through the coupling after the two coupling parts are locked against withdrawal

Definitions

  • the invention relates to a coupling for the connection of two line parts, both of which are a line part under the influence of a transported in the line, in particular in a supply hose pressure medium, both line parts are equipped end with correspondingly formed coupling members and coupled via it.
  • the invention is therefore based on the object to provide a coupling in particular supply hose coupling for oxygen lines, which is easy to handle and allows decoupling and also coupling under high pressure.
  • the coupling members are formed a quick-release coupling resulting in the consumer side facing coupling member serving as a female part quick coupling and the supplier side facing coupling member are designed as a male part and correspondingly shaped coupling pin having running or that the supplier side the quick coupling and the consumer side have the coupling pin and that both coupling members are associated with sealing valves.
  • Clutch pin remains on the consumer side, so then the female part, so here the quick coupling can be connected to another coupling pin, even if it is still under high pressure. This is possible because the correspondingly sealing valve in this area now seals, so not slowly as described above, the gas or other pressure medium can relax. With the coupling of corresponding pipe parts is then immediately a fully effective unit available.
  • the coupling member and thus the coupling pin is associated with a gas flow blocking the shut-off valve and the coupling member of the quick coupling a possible gas return flow damping return flow valve.
  • Another expedient embodiment is that in which the consumer side associated coupling pin have a gas return flow blocking sealing ring valve and the supplier side associated quick coupling a Absperrsitzventil for shutting off the gas flow.
  • the gas return flow is completely shut off, so that thus on the consumer side of the correspondingly high pressure remains and at the time of reconnection with the same quick coupling or with another possibility to have an operational ready system immediately.
  • An always secure connection with the subsequent line parts is guaranteed because both coupling elements have special connections for utilities and consumers. Just because both parts of the line during the decoupling and possibly also during the coupling are under high pressure, it is important that the connecting parts with the
  • the shut-off valve is designed as a mechanically openable valve, while the backflow valve on the gas return flow zunotd and with decoupling is carried out slowly and safely venting.
  • the connection is released, there is a uniform and slow venting through the reflux valve described, while at the same time the coupling pin is effectively sealed against the high pressure immediately via the shut-off valve.
  • the quick coupling is associated with a rotary thrust ring, which is designed to act on the shut-off valve of the coupling pin on the receiving tube of the therein flowable return valve.
  • a rotary thrust ring which is designed to act on the shut-off valve of the coupling pin on the receiving tube of the therein flowable return valve.
  • a mechanical response of the shut-off valve is possible in particular in the arrangement of the shut-off valve in the consumer side, if this is designed as a shut-off seat valve and is designed as over the displaceable by the rotary thrust ring valve guide tube in the coupling state or Entkupplungswort be brought valve. It can therefore be advantageously opened mechanically in this embodiment.
  • the invention provides that the housing of the quick coupling and coupling pin are releasably connected to each other via a locking ring with bayonet. Only with the rotation of the locking ring of the bayonet lock is releasable, but on the other hand means that only when the rotary thrust ring is actuated accordingly, the locking ring is ever effective to open or is to press. This is certainly prevented that even in unfortunate circumstances, the two parts of the quick-release coupling separate from each other, so possibly somewhere still pending pressure medium is then adversely affected.
  • the rotary thrust ring has a ball valve having a guide ball and is rotatably displaceable on the housing.
  • This rotary thrust ring with the ball screw ensures a smooth and safe turning process, without the risk that by setting or jerky movement too early relief occurs, which would always be problematic because of the oxygen used, for example.
  • the bayonet lock is also secured by the rotary thrust ring, for which purpose the rotary thrust ring of the quick-action coupling is arranged and designed to lock the locking ring when it is pushed onto the coupling pin and activates it in the coupling state.
  • the latter is achieved in that the receiving tube when moving or pushing the rotary thrust ring the there check valve with activated so that it can then be brought in the blocking position on further actuation. It is important that the locking ring is displaced when sliding the rotary push ring with and in the locked position, so then the flow through the quick-release coupling is secured. With the withdrawal of the pick-up tube or the pushing back then the check valve of the coupling pin is closed and then the locking ring can be pushed back so that the bayonet lock safely opened and both parts of the line can be taken apart.
  • a permanently safe operation of the corresponding coupling unit is ensured by the fact that the metal parts of quick coupling, locking ring and coupling pin are made of stainless steel or hardened, so not only long service life can be guaranteed, but also a corresponding impact protection.
  • the safe operation of the shut-off valve in the coupling pin is given by the fact that it is guided in the gas stream and can be pressed about this in the sealing surface and formed over the rotary thrust ring and the receiving tube from the sealing surface again raised.
  • it is displaceably arranged in a protective tube equipped with a supply tip and is entrained via the gas flow and pressed into the sealing surface as described.
  • the gas flow or pressure medium flow is interrupted.
  • the locking ring has been operated again and the bayonet lock effective, so then after lifting the shut-off valve from the sealing surface, the gas or the pressure medium can easily pass through the entire unit.
  • the shut-off valve mechanically lifted out of its seal seat.
  • the closing part of the shut-off valve is not connected to the receiving tube, wherein radial bores in the transition region ensure that the gas can flow past the seal of the outflow valve into the receiving tube.
  • the receiving tube in the area of the system on the shut-off valve on a ring of radial bores and expediently, these radial bores are arranged on the top edge or by breaking. This ensures that already at the slightest movement of the pick-up tube against the shut-off valve gas or pressure medium can flow again, whereby the further opening process is facilitated. This gas then shifts the return flow valve and leads to the opening of the same.
  • shut-off valve has a pressure against the sealing surface and can be influenced by the gas flow thrust ring.
  • the thrust ring is correspondingly far, so that the gas flow can act accordingly on the shut-off valve and ensures that it is pressed securely into the sealing surface.
  • shut-off valve during opening and closing is ensured by the fact that the shut-off valve is guided at the end opposite the thrust ring in the blind bore of a flow cone. In this way, flapping and the like are prevented and a secure placement of the shut-off valve or the thrust ring on the sealing surface is given.
  • the actuation of the rotary thrust ring is specifically facilitated by the fact that acting on the receiving tube end piece of the rotary thrust ring has a connecting ball ring with the guide balls corresponding running balls.
  • This connecting ball circle facilitates the turning process and ensures that the ball screw can be correspondingly easily operated and the Rotary push ring is always guided safely. Next, so the movement of the associated receiving tube is advantageously equalized.
  • the backflow valve is arranged so as to be displaceable in the receiving tube, wherein it is pushed into the sealing position by the return flow of the gas when the shut-off valve is closed in the event of corresponding pressure relief.
  • the connecting piece with special connection the receiving tube with therein against a sealing ring formed therein displaceably arranged backflow valve the receiving tube the necessary from the shut-off valve influenced movement is made possible.
  • the backflow valve is held in the sealing seat only via the pressure medium still present in this line part or in the sealing ring, this being limited in time, so that the gas or the pressure medium can then flow out of this line part slowly and without difficulty.
  • the shut-off seat valve described above should be absolutely sealing against the gas supply, ie on the supply side. This is achieved by the shut-off seat valve acting as a spring-loaded? Poppet valve with valve guide tube, which communicates with the rotary thrust ring, is formed. Such a poppet valve is pressed by the upcoming gas pressure and in addition via the spring in the sealing seat, so that an absolute seal is guaranteed. The opening of the Absperrsitzventils then takes place as already mentioned on the valve guide tube. This simple and convenient construction of the Absperrsitzventils is very beneficial.
  • the sealing ring valve in the coupling pin should optimally seal against the pending in the subsequent hose gas pressure, which is achieved according to the invention characterized in that to open the sealing ring valve in the coupling pin against the force of a valve spring on the gas flow and in the closed state with a coupling pin associated ring seal cooperating is trained.
  • the gas flow thus acts and ensures that this sealing ring valve reliably lets the pending gas or oxygen pass through. If then the clutch is to be opened and the pressure in the subsequent consumer area remain, then this is with the described
  • the invention is characterized in particular by the fact that a quick-release coupling is provided, which is constructed in such a way that it can be easily integrated into a supply hose. Both ends of the line or parts of the line are equipped with a valve on the end, so that the actual coupling parts can be kept unpressurized when uncoupling. As a result, a decoupling without problems to about 20 bar is possible, with the supplier associated with the pipe part a complete has sealing shut-off valve, while the connection part assigned to the consumer has an only partially sealed return valve, which ensures that the gas or pressure medium remaining there can easily and safely relax. Even this description makes clear that now the handling of such supply hoses is much easier, since they can be solved under pressure or connected to each other.
  • Figure 1 is a quick release coupling in section
  • FIG. 2 shows the quick-action coupling according to FIG. 1 in section, showing the intermediate coupling state
  • FIG. Figure 3 shows the consumer side associated coupling member in partial section
  • Figure 4 is a quick release coupling with the
  • FIG. 5 shows the quick-release coupling shown in FIG. 4 in the uncoupled state
  • FIG. 6 shows the coupling element in the form of the quick-action coupling assigned according to FIGS. 4 and 5 of the supplier side
  • Figure 7 shows a section through the consumer side associated coupling member with the sealing ring valve
  • Figure 8 shows the consumer side associated coupling member in the form of the coupling pin without an inserted
  • the quick-release coupling 58 shown allows coupling and uncoupling without risk even at pressures of 16 bar and more and without the risk of spontaneous combustion, because this quick-release coupling 58 has a special structure.
  • 61 and 62 are designated special connections, which still allow a secure connection even if the consumer side 64 or the supply side 104 is still a pressure medium with high pressure, for example 20 bar is pending.
  • a shut-off valve 63 is arranged, which is to be opened or closed via a receiving tube 67 to be displaced and on the other hand via the gas flow 27. If the receiving tube 67 is brought into the position according to FIG.
  • shut-off valve 63 of the coupling pin 60 closes and a further pressure medium inflow is prevented.
  • the return flow valve 65 displaceably arranged in the receiving tube 67 is then brought into the sealing position by the residual pressure medium, which now ensures that the residual pressure or the pressure medium can not escape abruptly.
  • the backflow valve 65 ensures in this embodiment that the consumer side 64 is slowly and safely vented.
  • the locking ring 70 can also be moved by hand with the bayonet lock 71, so that the guide pin 72 and the bayonet channel 73 make it possible to rotate and open. A separation of the quick coupling 59 and coupling pin 60 is then easily possible, the shut-off valve - as shown in Figure 2 - completely seals, so that outflow of gas from this area is excluded even when connected to a standing under 16 bar supply hose 57.
  • the training with the locking ring 70 and with Bayonet catch 71 effectively prevents inadvertently separating the two housings 68, 69 from one another too early, since this is only possible when, with appropriate relief, the rotary thrust ring 66 has reached the position according to FIG.
  • Consumer side 106 associated line part 103 and the corresponding coupling member 109 in the direction of the coupling member 108 or away from it can be moved.
  • 105 designates the line part on the consumer side, while the line part on the supplier side 104 is labeled 103.
  • the return flow valve 65 is displaced in the blocking position of Figure 2 within the receiving tube 67 by the not provided here with a reference numeral return flow of the pressure medium in such a way that its tip is pressed against the sealing ring 121. Then, the upcoming pressure medium can not flow off suddenly through the blind bore 89 and the radial bore 88, but only when there is a slight relaxation of the density and the pressure medium then flows out selectively and slowly.
  • This flexibility of the Return flow valve 65 in the receiving tube 67 is made possible by the fact that the connecting piece 120 has been displaced correspondingly via the rotary thrust ring 66.
  • Ball screw 75 and the balls 86 and connecting ball ring 85 provides the transmission ring 87 for the transmission of movement or forces.
  • This transmission ring 87 may be in one piece or consist of sections 117, 118.
  • the shut-off valve 63 has a thrust ring 112 which, above all, ensures that the gas flow 27 shifts the discharge pipe 67 and thus also simultaneously the thrust ring 112 and the shut-off valve 63 in the flow direction of the gas flow 27.
  • the displacement of this thrust ring 112 is facilitated by having an extension piece, which is guided as an opposite end 113 in a blind bore 114 of the flow cone 115.
  • the shut-off valve 63 is closed, so only the rotary thrust ring 66, the receiving tube 67 must be relieved, which is possible by moving the connector 120.
  • the gas flow 27 then shifts this receiving tube 67 and at the same time ensures that the thrust ring 112 comes to rest on the sealing surface 78 and thus completely seals this region.
  • FIG. 3 shows only once in a certain perspective, the formation of the quick coupling 59, here without the inserted male part so the coupling pin 60.
  • Recognizable are the guide balls 76 as well as the actual channel for these balls and also the running balls 86 of the connecting ball ring at the other end of the rotary thrust ring 66th
  • the coupling pin 60 ' is assigned to the consumer side 64 or 106, while the quick coupling 59' is assigned to the supplier side 104 or 110.
  • this only working with such a supply hose 57 or such a line part 103 or more lances or similar consumers, this has considerable advantages.
  • FIG. 4 shows this design of the quick-action coupling 58 in section. It can be seen that quick coupling 59 'has the rotary thrust ring 66 and the locking ring 70 with the bayonet lock 71, thus forming the female part.
  • the gas flow 27 is performed in the section shown in Figure 4 so that it can pass the Absperrsitzventil 31, which corresponds to the shut-off valve 63 approximately.
  • the gas flow 27 is guided past the shut-off seat valve 31 into the valve guide tube 32, for which purpose the radial bores 81, 82 are provided. From there, he then presses on the sealing ring valve 30, this opens against the pressure of the valve spring 35 so that it can then reach the consumer side 64 to be continued by the line part 105, not shown here in the lance.
  • the gas flow 27 ensures that the shut-off seat valve 31 reaches the seating position, which is still supported by the spring 33.
  • This Absperrsitzventil 31 has the shape of a poppet valve 34, so that a complete annular seal is formed, which then prevents 20 bar having oxygen from flowing through the quick-connect coupling 58.
  • the sealing ring valve 30 is pressed into the blocking position by the spring 33 and the gas return flow 28, so that here too a complete closure takes place, whereby this is favored by the ring seal 36.
  • the two line parts 103, 105 can now be released from each other when the bayonet lock 71 is placed in position accordingly.
  • FIG. 6 shows the quick coupling 59 'with the integrated shut-off seat valve 31.
  • FIG. 7 shows the coupling pin 60' with integrated sealing ring valve 30, which is used when a piece of hose is still inserted between the lance or the lance tube and the quick-action coupling 58 , If, in contrast, the lance is connected directly to the line part 105 (FIG. 8), the sealing ring valve 30 can be dispensed with. Also in this embodiment, as in the embodiment of Figure 7, the insertion part 37 in the female part, ie the quick coupling 59 'is inserted, about what then, as already mentioned, the valve guide tube 32 provides for the opening of the Absperrsitzventils 31. All of these features, including the drawings to be taken alone, are considered alone and in combination as essential to the invention.

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

Abstract

La présente invention concerne un raccord à fermeture rapide (58) utilisé pour raccorder deux parties de conduite (103, 105) d'un tuyau d'alimentation (57) qui se trouvent sous haute pression, par exemple 16 ou 20 bars. Ce raccord à fermeture rapide est caractérisé en ce que les deux parties de conduite (103, 105) comportent une soupape de conception particulière. La soupape associée au côté alimentation (104) est conçue sous forme de soupape d'arrêt (63) ou de soupape à siège d'arrêt (31), alors qu'une soupape anti-retour (65) ou une soupape à bague d'étanchéité (30) assurant également une étanchéité complète est placée côté consommateur (64 ou 106), de manière qu'un fluide sous pression se trouvant encore dans cette partie de conduite (105) ne puisse pas se dégager soudainement, mais puisse au contraire s'échapper lentement et sans danger ou puisse également être complètement contenu de façon étanche, afin que la partie de conduite (105) reste du côté consommateur (106) et permette ensuite, lorsqu'elle se trouve sous ladite haute pression avec la broche de raccord associée (60'), une connexion aisée et sûre avec le raccord rapide (59') présentant une conception correspondante.
PCT/DE2008/000878 2007-06-11 2008-05-24 Raccord à fermeture rapide Ceased WO2008151596A2 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE102007027398 2007-06-11
DE102007027398.5 2007-06-11
DE102007062393A DE102007062393A1 (de) 2007-06-11 2007-12-22 Schnellverschlusskupplung
DE102007062393.5 2007-12-22

Publications (2)

Publication Number Publication Date
WO2008151596A2 true WO2008151596A2 (fr) 2008-12-18
WO2008151596A3 WO2008151596A3 (fr) 2009-03-12

Family

ID=39986296

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2008/000878 Ceased WO2008151596A2 (fr) 2007-06-11 2008-05-24 Raccord à fermeture rapide

Country Status (2)

Country Link
DE (1) DE102007062393A1 (fr)
WO (1) WO2008151596A2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013002699A1 (fr) 2011-06-30 2013-01-03 Cejn Ab Accouplement rapide pour conduites/tuyaux présentant une fonction de verrouillage

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2984990B1 (fr) * 2011-12-23 2014-02-28 Staubli Sa Ets Raccord destine a realiser la jonction amovible de deux canalisations de fluide
DE102012016045B3 (de) * 2012-08-08 2013-10-24 Saarstahl Ag Verfahren zum Betrieb einer Aufblaslanzenanordnung, sowie Aufblaslanzenanordnung selbst
ITMI20130523A1 (it) * 2013-04-05 2014-10-06 Alfa Gomma S P A Adattatore per connettori di circuiti idraulici ad alta pressione
DE202014100200U1 (de) * 2014-01-17 2015-01-21 Lothar Schulz - Mechanik Gmbh Steckanschluss sowie Zuführanschlussteil
DE102021102527A1 (de) * 2021-02-03 2022-08-04 Klaus Nickel Kupplungsvorrichtung zur Verbindung fluidführender Bauteile

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3123099A (en) * 1964-03-03 High pressure fluid coupling
US5056560A (en) * 1991-04-17 1991-10-15 Spx Corporation Quick disconnect couplings unthreaded refrigerant fitments
US5255699A (en) * 1992-12-07 1993-10-26 Parker-Hannifin Corporation Nipple with integral crossbar actuator and check valve
NL1006805C1 (nl) * 1997-08-20 1998-04-22 Stevens & Van Vreeland B V Snelkoppelingsinrichting voor droogkoppeling.

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013002699A1 (fr) 2011-06-30 2013-01-03 Cejn Ab Accouplement rapide pour conduites/tuyaux présentant une fonction de verrouillage
EP2726769A4 (fr) * 2011-06-30 2015-03-11 Cejn Ab Accouplement rapide pour conduites/tuyaux présentant une fonction de verrouillage
US9404611B2 (en) 2011-06-30 2016-08-02 Cejn Ab Quick coupling for pipes/hoses with locking feature

Also Published As

Publication number Publication date
WO2008151596A3 (fr) 2009-03-12
DE102007062393A1 (de) 2008-12-18

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