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WO1999002913A1 - Raccord pour raccordement rapide - Google Patents

Raccord pour raccordement rapide Download PDF

Info

Publication number
WO1999002913A1
WO1999002913A1 PCT/EP1998/004212 EP9804212W WO9902913A1 WO 1999002913 A1 WO1999002913 A1 WO 1999002913A1 EP 9804212 W EP9804212 W EP 9804212W WO 9902913 A1 WO9902913 A1 WO 9902913A1
Authority
WO
WIPO (PCT)
Prior art keywords
sliding sleeve
quick connection
collets
piston
quick
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/EP1998/004212
Other languages
German (de)
English (en)
Inventor
Erwin Weh
Wolfgang Weh
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of WO1999002913A1 publication Critical patent/WO1999002913A1/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
    • F16L37/12—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
    • F16L37/1215—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 provided with a screw-thread adapted to engage and mesh with an appropriate corresponding part
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
    • F17C2205/037—Quick connecting means, e.g. couplings

Definitions

  • the invention relates to a quick connector for the transmission of gaseous and / or liquid fluids, in particular for filling gas bottles or tank systems.
  • Such quick-connect couplings are intended to achieve a secure, sealed and quickly connectable plug-in coupling for transferring a fluid from a pressure source, for example from a refill bottle.
  • the simple, problem-free operability of the quick-connect coupling is particularly important here, so that problem-free handling is possible even under unfavorable conditions, such as dangerous fluids or at high connection pressures.
  • Such a quick-connect coupling is described in EP-A-0 340 879, the quick-connect coupling having a housing with a fluid inlet and a fluid outlet, and a plurality of valves being provided in order to ensure a secure seal of the quick-connect coupling until the connection has been made completely. These valves are switched after attaching the quick coupling in a certain predetermined order.
  • a control lever is engaged via an eccentric shaft with a sliding sleeve for the application of collets and with a central sealing piston which also releases the fluid inlet after the plug-in coupling has been connected.
  • a quick connection device in the form of collets with an engagement profile is provided in the region of the outlet.
  • a hollow sealing piston which can be slid in the coupling housing is also described, which is coupled via an actuating device connected to a sliding sleeve for closing or opening the collets.
  • a separate actuation of the actuating device in the form of a lever is required, so that the handling of this quick connector can also be improved.
  • the object of the invention is to create a quick-connect coupling of the type mentioned at the outset which, with a simple construction, enables safe and particularly simple handling.
  • the proposed quick connection coupling is characterized by a small number of components, simple manufacture and particularly simple operation, which is also particularly safe. Particularly for the filling of tank systems or gas bottles with high pressures, a particularly secure connection of the quick connection coupling is achieved, since the connection coupling is still twisted by a screwing movement after coupling due to the drivers between the collets and thus is inserted at the counter connection with a defined contact pressure. or screwed on.
  • the proposed quick connector coupling is suitable for various connections, in particular for connecting nipples with an external thread.
  • other internal thread profile shapes can also be provided in the connecting nipple, the opposite collet shape being designed accordingly is. The connection and screwing movement is done with one hand.
  • the sealing piston which is preferably slidable in the housing, first enables a safe, smooth engagement of the collets, since the engagement profile of the collets automatically adapts to the threads or corresponding positive engagement profiles due to the slight displaceability of the sealing piston.
  • connection nipple, z. B. for a tank system can be constructed relatively easily, and yet by the axial mobility of the sealing piston together with the screwing of the collets, the sealing surface of the quick coupling coupling rests securely on the connecting nipple. This also reliably prevents excessive wear or damage to the connection profile on both the coupling and nipple side.
  • Fig. 1 is a side view of a quick connector for a connecting nipple with an external thread as Connection profile, the quick connector is shown in longitudinal half-section; and Fig. 2 is an exhaust side front view of the
  • a preferred embodiment of a quick connector 10 is shown shortly before connection to a connector nipple 30.
  • the quick-connect coupling 10 has a tubular housing 11, the right end face serving as inlet 12 and the left end face as outlet 13 for the transmission of the fluid to be transferred to the connection nipple 30.
  • the inlet 12 to the housing 11 has an external thread 14 , to which a hose or a pipeline for supplying the fluid to be transferred can be connected.
  • the external thread 14 can be designed to adapt to the fluid to be transferred, in particular to the respectively desired feed angle, passage cross sections, etc.
  • a plurality of elongate collets 15 arranged in tubular form are provided, which in the position not shown here are spread radially outwards when plugged onto the connecting nipple 30, as is also the case, for example, in the aforementioned WO-A-93/20378 is shown.
  • the elongated collets 15, of which at least three collets are arranged around the housing 11, are attached at their right-hand end to an annular groove 11a of the housing 11 and are preloaded by an annular spring 16, so that the collets 15 are spread radially outwards when the sliding sleeve 18 described below is withdrawn for the connection process.
  • the collets 15 each have a design corresponding to the connection profile 31 of the connection nipple 30 form-fitting engagement profiles 17, so that, in the embodiment with an external thread as the connection profile 31 on the connection nipple 30, there is a correspondingly formed internal thread with a few thread turns on the radially inward-facing surfaces of the engagement profile 17.
  • a sliding sleeve 18 is provided, which is guided on the cylindrical outer jacket of the housing 11 and is surrounded by a grip sleeve 19 made of plastic.
  • the grip sleeve 19 is coupled to the sliding sleeve 18 via a spring ring 21 and axially limited by a support ring 20 relative to the housing 11.
  • a sealing piston 22 is guided on the circumferential surface of the housing 11 toward the outlet 13 and has a sealing ring 23 on its front end face for contact with an end sealing face 32 of the connecting nipple 30.
  • a control piston 25 guided in the sealing piston 22 is sealed off from the housing 11 with an inserted sealing ring 24, so that the gaseous and / or liquid fluid flowing essentially along the central axis of the plug-in connection coupling 10 cannot escape to the outside.
  • the sealing ring 23 as a coupling-side sealing surface can also be designed in a simplified design on the correspondingly widened end face of the housing 11.
  • control piston 25 which is mounted centrally in the housing 11 and seals by means of a further sealing ring 26 with respect to the sealing piston 22 which is preferably provided.
  • the control piston 25 is acted upon by a compression spring 28 which is also guided in the sealing piston 22 and is supported against the latter.
  • This control piston 25 ensures that in the coupled position of the quick-connect coupling 10 to the connection nipple 30 of the control piston 25, a locking ball 29 presses outward into the sliding sleeve 18, so that it is held in the locked position when the fluid flows.
  • the compression spring 28 can move the control piston 25 towards the inlet 12 so that, due to the smaller diameter ramp on the outer surface of the control piston 25, the locking ball 29 can step inwards and thus the sliding sleeve 18 can be pulled towards the inlet 12.
  • At least one (here three) driver 40 arranged on the inner circumference of the sliding sleeve 18, each of which protrudes between the collets 15, as can be seen in particular from the dotted illustration in FIG. 2.
  • Each side edge of the driver 40 engages on the side surfaces of the adjacent collets 15, as a result of which their engagement profiles 17 are simultaneously screwed onto the connection profile 31 with the rotation of the sliding sleeve 18 and thus the sealing piston 22 is pressed against the sealing surface 32.
  • the drivers 40 are arranged in the manner of a spline (spline profile) on the inner circumferential surface of the sliding sleeve 18 between the collets 15.
  • the drivers 40 can also be fastened as individual shell elements on the inner circumferential surface of the sliding sleeve 18 in the region between the collets 15, as is indicated here by rivets 43.
  • the attachment can also be done by gluing or welding.
  • the sealing ring 23 comes into contact with the sealing surface 32, as a result of which a position occurs in this position Leakage of fluid at the connection nipple 30 is avoided. Due to the contact of the sealing ring 23 on the sealing surface 32, the sealing piston 22 is also displaced to the right until a bolt 41 projecting on the outer circumference comes into contact with a position fixing ring 42 and can no longer be displaced axially to the right.
  • control piston 25 When pressure is applied, the control piston 25 is then shifted to the left, so that the locking ball 29 is pressed outward, in order to inevitably lock the collets 15 with the respective engagement profile 17 on the correspondingly configured connection profile 31 of the connection nipple 30, since the ones already manually advanced during the connection process Sliding sleeve 18 engages around the radially outer ends of the collets 15, so that they are held in a form-fitting manner in their engagement position on the connecting nipple 30.
  • control piston ring surface 25a which has a somewhat larger effective surface than the contact surface between the sealing ring 23 and the sealing surface 32. This ensures that with fluid flow substantially along the central axis of the quick coupling 10 of the sealing piston 22 with its sealing ring 23 by the control piston 25 while compressing the compression spring 28 with increasing pressure is also pressed more strongly against the sealing surface 32, which is due to the slightly flexible mounting of the Bolt 41 is made possible by means of the element 42 relative to the housing 11. This will provide a servo effect, i.e. H. a stronger contact pressure of the sealing ring 23 with increasing fluid pressure and thus a reliable seal of the quick coupling 10 is achieved.
  • the sliding sleeve 18 is withdrawn directly or with the handle sleeve 19 connected non-rotatably via a wedge or feather key as an anti-rotation 44 on a corrugation or corresponding profiling 45 on the outer surface by hand.
  • This is only possible if after Interruption of the fluid supply to the control piston 25 under the action of the compression spring 28 is shifted here to the right towards the inlet end 12 and thus the locking ball 29 is released inwards. So that the sealing contact between the sealing piston 22 and the sealing surface 32 is released, so that finally the quick connector 10 can be removed.
  • the driver 40 it is important that the spreading movement of the collets 15 is not hindered by this, but at the same time a "bayonet-type" screwing of the quick-connect coupling 10 is made possible, so that damage to the engagement profile 17 or the connection profile 31 is avoided.
  • the three catches 40 provided here thus allow the quick connection coupling 10 to be simply plugged onto the connection nipple 30, the collets 15 being closed and locked by the advanced sliding sleeve 18.
  • the locked collets 15 can then be screwed onto the counter-connection 30/31 by at least a few angular degrees by means of the positively engaging drivers 40, the screwing of the collets 15 by means of the sliding sleeve 18 practically in one Handle is made to make the connection particularly pressure-tight and safe.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mechanical Coupling Of Light Guides (AREA)
  • Branch Pipes, Bends, And The Like (AREA)
  • Quick-Acting Or Multi-Walled Pipe Joints (AREA)

Abstract

L'invention concerne un raccord pour raccordement rapide, utilisé pour le transfert de gaz et/ou de fluide, en particulier pour le remplissage de bouteilles de gaz ou de réservoirs, qui comportent un corps (11) tubulaire, un manchon coulissant (18) pouvant être déplacé par rapport au corps (11), et plusieurs tenons de serrage (15) fixés audit corps (11), pouvant s'étendre radialement et présentant un profil d'engagement (17) pour le raccordement à un mammelon (30) de forme correspondante. Pour obtenir un tel raccord pour raccordement rapide qui soit d'une réalisation et d'une manipulation simple, il est proposé que les tenons de serrage (15) soient accouplés avec le manchon coulissant (18) par liaison de forme au moyen d'au moins un entraîneur (40) qui, lorsque le raccord pour raccordement rapide (10) est dans la position accouplée, s'engage entre les tenons de serrage (15).
PCT/EP1998/004212 1997-07-07 1998-07-07 Raccord pour raccordement rapide Ceased WO1999002913A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE29711842.0 1997-07-07
DE29711842U DE29711842U1 (de) 1997-07-07 1997-07-07 Schnellanschlußkupplung

Publications (1)

Publication Number Publication Date
WO1999002913A1 true WO1999002913A1 (fr) 1999-01-21

Family

ID=8042690

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1998/004212 Ceased WO1999002913A1 (fr) 1997-07-07 1998-07-07 Raccord pour raccordement rapide

Country Status (2)

Country Link
DE (1) DE29711842U1 (fr)
WO (1) WO1999002913A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003074921A1 (fr) * 2002-03-02 2003-09-12 Erwin Weh Raccord avec douille coulissante et machoires de serrage
US7424897B2 (en) 2002-03-02 2008-09-16 Erwin Weh Connection coupling
US7458400B2 (en) 2002-03-02 2008-12-02 Erwin Weh Connective coupling a data interface

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1186822B1 (fr) * 2000-09-07 2003-07-02 Gabriella Multinu Accouplement rapide

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3394950A (en) * 1967-08-09 1968-07-30 Warren R. Jensen Hose coupling attachment
EP0340879A1 (fr) 1988-05-05 1989-11-08 Erwin Weh Raccord rapide étanche à la pression
WO1993020378A1 (fr) 1992-03-31 1993-10-14 Weh Gmbh, Verbindungstechnik Raccord rapide pour le remplissage de bouteilles de gaz
WO1995008734A1 (fr) * 1993-09-20 1995-03-30 Aga Aktiebolag Dispositif d'accouplement

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3394950A (en) * 1967-08-09 1968-07-30 Warren R. Jensen Hose coupling attachment
EP0340879A1 (fr) 1988-05-05 1989-11-08 Erwin Weh Raccord rapide étanche à la pression
WO1993020378A1 (fr) 1992-03-31 1993-10-14 Weh Gmbh, Verbindungstechnik Raccord rapide pour le remplissage de bouteilles de gaz
WO1995008734A1 (fr) * 1993-09-20 1995-03-30 Aga Aktiebolag Dispositif d'accouplement

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003074921A1 (fr) * 2002-03-02 2003-09-12 Erwin Weh Raccord avec douille coulissante et machoires de serrage
US7424897B2 (en) 2002-03-02 2008-09-16 Erwin Weh Connection coupling
US7458400B2 (en) 2002-03-02 2008-12-02 Erwin Weh Connective coupling a data interface
US7494158B2 (en) 2002-03-02 2009-02-24 Erwin Weh Connecting coupling with a sliding sleeve and collet chucks

Also Published As

Publication number Publication date
DE29711842U1 (de) 1998-08-06

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