EP1409912A1 - Dispositif a raccord enfichable, en particulier pour conduites de fluide - Google Patents

Dispositif a raccord enfichable, en particulier pour conduites de fluide

Info

Publication number
EP1409912A1
EP1409912A1 EP02762382A EP02762382A EP1409912A1 EP 1409912 A1 EP1409912 A1 EP 1409912A1 EP 02762382 A EP02762382 A EP 02762382A EP 02762382 A EP02762382 A EP 02762382A EP 1409912 A1 EP1409912 A1 EP 1409912A1
Authority
EP
European Patent Office
Prior art keywords
plug
ring
annular
edge
connection device
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.)
Withdrawn
Application number
EP02762382A
Other languages
German (de)
English (en)
Inventor
Axel Schneider
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.)
Eaton Fluid Power GmbH
Original Assignee
Eaton Fluid Power 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 Eaton Fluid Power GmbH filed Critical Eaton Fluid Power GmbH
Publication of EP1409912A1 publication Critical patent/EP1409912A1/fr
Withdrawn legal-status Critical Current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
    • F16L41/00—Branching pipes; Joining pipes to walls
    • F16L41/08—Joining pipes to walls or pipes, the joined pipe axis being perpendicular to the plane of the wall or to the axis of another pipe
    • F16L41/086—Joining pipes to walls or pipes, the joined pipe axis being perpendicular to the plane of the wall or to the axis of another pipe fixed with screws
    • 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
    • F16L37/14—Joints secured by inserting between mating surfaces an element, e.g. a piece of wire, a pin, a chain

Definitions

  • Plug-in device in particular for fluid lines
  • the invention relates to a connector device which is provided for connecting parts.
  • a preferred field of application of the plug connection device is the connection of fluid lines.
  • a connector for pipes which uses an annularly closed tension spring as a locking element.
  • the two mutually connecting parts of these plug connection devices are Pipe ends that are pushed into each other.
  • the outer tube end has a funnel-shaped edge that is angled outward at approximately 45 °, the conical outer surface of which serves as a contact surface for the ring spring.
  • the inner tube end is provided with a flange, the outer edge of which is bent inwards in order to delimit an annular interior.
  • the inwardly bent edge is conical. Its inner surface is parallel to the conical outer surface of the outwardly curved edge of the other pipe end at a distance.
  • the ring spring is located between the two conical surfaces and thus forms a locking member which prevents the inner tube end from being pulled out of the outer tube end or the outer tube end being pulled off the inner tube end. In its locked position, the ring spring rests on the outer surface of the outer tube end. An axial bracing of the pipes ⁇ against each other does not take place.
  • connection should be made in the simplest possible way, for example by merely bringing the parts to be connected together. This makes it possible to achieve considerable simplifications in production, for example in comparison to screw connections.
  • This plug connection device is particularly suitable for securing two coupling parts of a fluid coupling device to one another.
  • the connector device has a holding device which serves to hold the parts in the merged state.
  • the holding device includes a holding element, a plug element and a clamping element.
  • the plug element is to be inserted into a plug opening of the holding element.
  • the holding element has an annular edge which is opposite an annular surface of the plug element. In the assembled state, the clamping element sits between the ring edge and the ring surface, which is thus supported on the ring edge and on the ring surface.
  • the support of the plug element on the part of the holding element only on one edge has the advantage that any static friction that occurs here is considerably less than in the case of a rather extensive intervention.
  • This means that the clamping element can not only enter its clamping seat and tighten the holding element and the plug element against one another when the connection is being made, that is to say when the connection is being made, but it can also re-tension the connection, which is at rest.
  • the clamping element can move in order to clamp the parts against each other again. This is due in part to the reduced static friction caused by the contact of the clamping element only on one edge.
  • the clamping element is, for example, a slotted spring ring or another ring-shaped element. However, it is preferably designed as a closed ring which can be expanded in a resilient manner. This has the advantage that the ring edge and the ring surface are loaded equally at all points and that the locking device formed is essentially equally effective at all points of its circumference.
  • the clamping element is preferably a tension spring element, for example in the form of an annular tension spring.
  • This has the essential advantage that it can perform a rolling movement about its central axis running in the circumferential direction. This central axis is also referred to as the line central axis.
  • the design of the tension spring element as a closed ring spring has several advantages, in particular in connection with the configuration of the holding element and the plug element according to the invention. ⁇ The widening of the Ringfe when joining the plug connection can be done by the spring element is expanded by rolling over a conical portion of the male member. The rolling movement is relatively smooth due to the low friction associated with it. Short, steep cone areas and / or relatively hard tension springs can thus be used.
  • connection between the parts tightens almost unchecked. Retensioning is possible in particular because the distance between the ring surface and the ring edge becomes smaller as the diameter of the ring surface decreases. Characterized a narrowing arcuate portion is provided, the annular spring clamps in the under together ⁇ menziehung.
  • the clamping member has to bridge which is less than the greatest distance between the ring surface and the annular edge and is greater than the smallest distance between the annular surface and the annular edge.
  • a di ⁇ In the case of an annular spring, the thickness of the clamping elements ⁇ understood as the cord diameter.
  • the ring surface preferably changes its angle to the central axis of the plug element depending on the diameter.
  • the annular surface of two or more co ⁇ African surface sections may be composed.
  • the ring surface can thus be made relatively wide overall, ie the area in which its distance from the ring edge is reduced can be long. This allows a clamping stroke of the holding device to be achieved which is relatively large.
  • the annular surface is preferably curved. This allows the ring spring to roll evenly over the ring surface when re-tensioning the connection.
  • the ring edge is formed on an annular shoulder of the insertion opening.
  • the annular shoulder can be part of an annular groove in which the clamping element is held. The desired connection is thus established when the plug element and the holding element are put together. However, it is also possible to move the ring spring element or other clamping element into its clamping position with a separate actuating element.
  • an indicator socket is seated in the plug-in opening and carries the clamping element on its outer surface.
  • the clamping element sits in the ring groove and is held by the indicator bushing in this.
  • This embodiment has the advantage that the clamping element cannot fall out of the annular groove or can get jammed while making the plug connection.
  • Holding elements can be used which are very small and which would fall out of the plug opening in a relaxed state. Very hard clamping elements can also be used.
  • the conical head of the plug element can be made short.
  • the indicator shows the correct socket Her ⁇ position of the locking connection. If there is no correct detent, the indicator socket protrudes less from the plug opening. The dimensions can be matched to one another so that the indicator socket comes out completely from the plug opening when the connection is made correctly.
  • the additional latching step represents a catching step which holds the parts together when the system is put under fluid pressure.
  • the system is prevented from opening unintentionally explosively.
  • an edge is formed, which lies with the top side of the retaining element in a plane. This edge can form a catch area for condensate that forms and thus protect against corrosion of the clamping element or the other parts involved.
  • the connector device according to the invention allows lateral play, so that the axial positioning of the parts relative to one another can be determined by other means, for example the coupling parts. This has advantages with regard to the sealing of the coupling parts against one another. Any sealing elements are thus evenly loaded in the radial direction.
  • FIG. 1 shows an embodiment of the plug connection device according to the invention in a longitudinally sectioned basic illustration
  • FIG. 2 shows the plug-in connection device according to FIG. 1 in a fragmentary, longitudinal section and on a different scale
  • FIG. 3 shows the plug connection device according to FIG. 2 in a basic illustration to illustrate the geometry
  • FIG. 5-7 shows a modified embodiment of the plug connection device in a longitudinal section in different states
  • FIG. 8 shows a modified embodiment of the plug connection device in a longitudinal section
  • Figure 9 shows the connector device according to Figure 8 in the first latching stage in a longitudinal section and Figure 10 shows the connector device of Figure 8 in a longitudinal section, in the correctly connected state.
  • a connector device 1 which serves to connect two fluid lines 2, 3.
  • the fluid line 2 is, for example, a pipe or hose line that defines a fluid channel 4.
  • the fluid line 3 is, for example, a bore 6 formed in a housing 5, which forms a fluid channel 7.
  • the fluid channel 4 leads into a tubular extension 8, which forms a first coupling part. This is inserted into the bore 6, whereby the housing 5 forms a second coupling part.
  • the extension 8 is provided on its outer circumferential surface with at least one sealing element 9, for example in the form of an O-ring.
  • a holding means 12 is provided.
  • the holding device has a holding element in the form of a holder 14 which lies flat against a flat surface 15 of the housing 5 in use. As illustrated in the exemplary embodiment according to FIG. 1, the holder 14 can extend laterally away from the fluid channel 4.
  • the holder 14 has a Stecköff ⁇ voltage 16, which is for example a cylindrical through hole ⁇ .
  • the insertion opening 16 has a wall 17 on which an annular step 18 with an annular edge 19 is formed. The step 18 faces away from the flat surface 15 against which the holder 14 is to be clamped.
  • a further, oppositely directed step 21 is arranged above step 18, so that an annular groove is located between steps 18, 21 22 is formed.
  • the ring tension spring consists of a spring wire 25 which is helically wound around a central axis 24 of the cord, the ends of which are connected to one another. Overall, the ring tension spring 23 is thus approximately thorus-shaped.
  • a plug member 26 for example as a bolt 27 with profiling system ⁇ head 28 is formed.
  • the bolt 27 is screwed, for example, into a threaded blind bore 29 in the housing 5.
  • the head of the bolt 27 has a smaller overall diameter than the plug opening 16, so that the holder 14 with its plug opening 16 can be pushed over the head 28.
  • the head 28 has an annular shoulder 31 on its circumferential surface, which defines an annular surface 32 on its lower side facing the step 21 and thus the flat surface 15.
  • the ring surface 32 lies opposite the ring edge 19. The conditions are shown in detail in FIG.
  • the annular surface 32 is curved ⁇ forms. It can be curved in the form of a circular arc in longitudinal section.
  • a curvature has been out ⁇ that follows an elliptical arc.
  • the ring edge 19 can also be somewhat rounded.
  • the annular surface 32 arranged coaxially to an axis of symmetry 33 of the bolt 27 is at a distance from the edge 19 which gradually decreases along the axis of symmetry 33.
  • the path W has a constant radius R to an axis of curvature K about which the ring edge 19 curves.
  • the path W is the path which the ring tension spring 23 or its central line axis travels at least in sections when it clamps the holder 14 on the bolt 27.
  • the angle ⁇ of the ring surface 32 to the axis of symmetry 33 also decreases with decreasing diameter.
  • the annular surface 32 forms a first latching step, to which a conical ramp section 34 adjoins above it. With the axis of symmetry 33, this includes a relatively flat rise angle. It serves to widen the ring tension spring 23 when joining the connection.
  • a second annular shoulder 35 is provided which is adjoined by a further portion ramps ⁇ 36th Between the ramp section 36 and the annular shoulder 35, an annular edge 37 is formed from ⁇ , the diameter of which is only slightly smaller than the inside diameter of the insertion opening 16 and which is approximately at the same height as a flat outer surface 38 of the holder 14.
  • the connector device 1 described so far functions as follows:
  • the extension 8 is first inserted into the bore 6 and the holder 14 with its plug opening 16 is inserted over the head 28. postponed.
  • the ramp section 36 expands the relaxed annular spring 23 lying in the annular groove 22 and projecting into the insertion opening 16.
  • the ring tension spring 23 rolls over the ramp section 36 and first finds its way into a latching step via the ring edge 37. This state is illustrated in Figure 4.
  • the holder 14 is not yet firmly clamped against the housing 5, but it is secured to such an extent that the extension 8 can no longer be pressed out of the bore 6.
  • the ring tension spring 23 can push the holder 14 further against the plane surface 15 by the ring tension spring 23 continuing on its way W (FIG. 3) penetrates the space between the annular surface 32 and the ring edge 19.
  • W FIG. 3
  • the Ringzugfeder 23 roll on the annular surface 32 with a rotation around its central axis line 24, ⁇ currency rend it slides on the annular edge 19th
  • the static friction between the ring edge 19 and the ring tension spring 23 is extremely low, so that the connection is easily tightened.
  • the latching process has remained incomplete and the ring tension spring 23 has not really penetrated into the space between the ring surface 32 and the ring edge 19, the further ring shoulder 35 forms a safety catch step. If the fluid channels 4, 7 are pressurized without the latching taking place securely, the extension 8 is moved a small distance out of the bore 6. The holder 14 thus moves away from the housing 5 until the ring tension spring 23 comes into the position illustrated in FIG. 4, ie comes into contact with the ring shoulder 35. Thus, the Fort ⁇ set 8 can not be pushed further out of the hole 6 and uncontrolled opening of the fluid channels is avoided.
  • the ring edge 37 lies approximately at the level of the mouth of the plug opening 16 (FIG. 2).
  • the distance between the ring edge 37 and the wall of the insertion opening 16 or its upper edge is very small and is preferably in the range of a few tenths of a millimeter. Condensate that collects in this area or moisture that acts from outside soon bridges this gap and is held here due to the capillary action. The penetration of moisture into the area of the ring tension spring 23 is thus avoided. This is an effective protection against corrosion.
  • FIGS 5 to 7 illustrate a modified embodiment.
  • the same reference numerals are used increased by the summand 100 and reference is made accordingly to the above description.
  • the connector device 101 has a stepped plug opening 116, which does not contain an annular groove.
  • the ring spring 123 is not contained in an annular groove, but it can move out of the plug opening 116. It sits on a cylindrical extension 139, above the ramp section 134.
  • an actuating element 141 is provided in order to be able to move the ring tension spring 123 over the ramp section 134 and into the gap between the ring surface 132 and the ring edge 119.
  • This has a multi-slit cylindrical section 142 which sits on the extension 139. Longitudinal slots set in axial direction ⁇ extending fingers 143 free, the slice at one end ⁇ 144 are held and are able to spring radially outwardly.
  • the holder 114 is pushed over the actuating element 141 and then over the head 128. Then, as illustrated in FIG. 5, it initially lies loosely on the flat surface 115.
  • the actuating element 141 is now pressed down by exerting a force F on the end plate 144. This is illustrated in Figure 6.
  • Spreading the fingers 143 the ring tension spring 123 is pushed over the ramp section 134 until it rolls beyond the end thereof and the space between the ring surface 132 and the ring edge 119 becomes.
  • the Ringzugfe ⁇ der 123 clamps the connection, as described above in connection with the connector 1. This state is illustrated in Figure 7.
  • FIGS. 8, 9 and 10 illustrate a further embodiment of the plug connection device 1 as a plug connection device 201.
  • the connector device 201 For a description of the connector device 201, reference is made to the description of the connector device 1. The description applies accordingly. The reference numerals are increased by the summand 200.
  • an indicator sleeve 245 is inserted into the plug opening 216 in the plug connection device 201.
  • the indica ⁇ torhülse 245 a hollow cylindrical portion 246 whose outer diameter corresponds approximately with the inside diameter of the plug hole 216th
  • a section 246 is followed by a flange-like end disk 247, which extends radially outwards.
  • the length of the cylindrical section 246 is so great that when the end disk 247 bears against the holder 214 it essentially covers the annular groove 222.
  • the ring tension spring 223 thus lies against the lateral surface of the section 246 and is held by the ⁇ sem in the ring groove 222.
  • Section 246 is approximately tubular and encloses a recess 248 into which head 228 can enter somewhat.
  • the recess 248 is widened in a funnel shape at its outer end. At its inner end it has a bottom 249, the position of which is so is fixed, that the lateral surface of the ramp section 234 does not just touch the funnel-shaped end of the recess 248 when the head 228 rests on the bottom 249.
  • the function of the indicator sleeve 245 results from FIGS. 8 to 10.
  • the section 246 covers the annular groove 222 and holds the annular tension spring 223 outside the insertion opening 216. It is therefore possible to use annular tension spring elements 223 find, the diameter is small in the relaxed state, so that they would protrude very far into the plug opening 216 or would fall out of this.
  • the head 228, as illustrated in FIG. 9, begins to push the indicator sleeve 245 out of the plug opening 216.
  • the ring groove 222 is released at the same time and the ring tension spring 223 is located behind the ring shoulder 235 (FIG. 9).
  • the indicator sleeve 245 is pushed further 228 ⁇ from the Ste cgro réelle 216 from the front surface of the head.
  • ramp section 234 expands ring tension spring 223 again until it leaves section 234 and finds it behind ring surface 232.
  • the holder 214 is tightened, as written above in connection with the holder 14 and Figure 1 be ⁇ .
  • the indicator sleeve 245 is pushed out of the insertion opening 216 to such an extent that it falls off or can be easily removed. This indicates the ord ⁇ voltage completely safe production of the connector.
  • a connector device 1 in particular for securing and clamping fluid couplings 11, has a holding device with a holder 14, a Steckele ⁇ element 26 and a tension spring element in the form of an annular tension spring 23.
  • the Ringzugfeder 23 acts as a wedge between a groove formed on the plug element 26 annular surface 32 and a holder 14 formed on the annular edge 19.
  • the Ringzugfeder 23 can be a rolling movement about its center axis Schnurmit ⁇ run 24th
  • a particularly low static friction is present here, which allows the holding device 12 to be continuously tensioned independently.

Landscapes

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

Abstract

Dispositif à raccord enfichable (1), en particulier pour la fixation et le blocage d'accouplements pour fluide (11) présentant des moyens de retenue comportant un support (14), un élément enfichable (26) et un élément à ressort de traction se présentant sous la forme d'un ressort de traction annulaire (23). Ce dernier agit à la manière d'un coin entre une surface annulaire (32) formée sur l'élément enfichable (26) et un bord annulaire (19) formé sur le support (14). Le ressort de traction annulaire (23) peut effectuer un mouvement de roulement autour de son axe de câble (24). Du fait de l'appui du ressort de traction annulaire (23) sur le bord annulaire (19), il se produit un frottement par adhérence particulièrement faible, ce qui permet un serrage ultérieur automatique continu des moyens de retenue (12).
EP02762382A 2001-07-26 2002-07-22 Dispositif a raccord enfichable, en particulier pour conduites de fluide Withdrawn EP1409912A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10136339A DE10136339C1 (de) 2001-07-26 2001-07-26 Steckverbindungseinrichtung, insbesondere für Fluidleitungen
DE10136339 2001-07-26
PCT/EP2002/008126 WO2003012332A1 (fr) 2001-07-26 2002-07-22 Dispositif a raccord enfichable, en particulier pour conduites de fluide

Publications (1)

Publication Number Publication Date
EP1409912A1 true EP1409912A1 (fr) 2004-04-21

Family

ID=7693115

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02762382A Withdrawn EP1409912A1 (fr) 2001-07-26 2002-07-22 Dispositif a raccord enfichable, en particulier pour conduites de fluide

Country Status (5)

Country Link
US (1) US20040245773A1 (fr)
EP (1) EP1409912A1 (fr)
KR (1) KR20040025703A (fr)
DE (1) DE10136339C1 (fr)
WO (1) WO2003012332A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10044765A1 (de) * 2000-09-11 2002-05-08 Eaton Fluid Power Gmbh Leitungssteckverbindungseinrichtung
DE202006019525U1 (de) * 2006-12-28 2008-05-08 Voss Automotive Gmbh Blockverbinder für Fluidleitungen
KR101038013B1 (ko) * 2010-03-09 2011-05-30 산이건설 주식회사 가설교량용 주형보 결합구조
JP5464171B2 (ja) * 2011-05-25 2014-04-09 株式会社デンソー 流体通路接続装置

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Publication number Priority date Publication date Assignee Title
US928896A (en) * 1907-06-28 1909-07-20 Metallurg Du Perigord Soc Pipe-joint.
US1867296A (en) * 1929-11-14 1932-07-12 Leonidas D Woodruff Air line coupling
US2069377A (en) * 1935-04-23 1937-02-02 Meyer Coupling Company Inc Coupling device
US3532101A (en) * 1967-09-25 1970-10-06 Srm Co Low pressure gas coupling
US4055359A (en) * 1975-11-17 1977-10-25 Ford Motor Company Quick-connect tubular couplings
DE7817051U1 (de) * 1978-06-07 1980-08-28 Voss Armaturen Anschlussvorrichtung fuer bremsleitungen
US4401326A (en) * 1981-12-16 1983-08-30 Ford Motor Company Quick-connect tubular coupling
FR2545188B1 (fr) * 1983-04-27 1985-07-05 Commissariat Energie Atomique Dispositif de raccordement teledemontable
US5374089A (en) * 1992-09-29 1994-12-20 Itt Industries Inc. High pressure quick connector
US5342095A (en) * 1992-09-29 1994-08-30 Itt Corporation High pressure quick connector
US5492371A (en) * 1994-11-02 1996-02-20 Itt Corporation Garter spring stuffer pack quick connector
US5797627A (en) * 1995-02-28 1998-08-25 Salter Labs Swivel
US5853201A (en) * 1996-01-17 1998-12-29 Nippondenso Co., Ltd. Coolant pipe connecting coupling
US5727304A (en) * 1996-06-19 1998-03-17 Eaton Corporation Conduit fast connection
DE19822574C1 (de) * 1998-05-20 1999-10-14 Raymond A & Cie Lösbare Schnellkupplung mit automatischer Montageanzeige
DE10044765A1 (de) * 2000-09-11 2002-05-08 Eaton Fluid Power Gmbh Leitungssteckverbindungseinrichtung
US6805383B2 (en) * 2001-11-12 2004-10-19 Itt Manufacturing Enterprises, Inc. Fluid quick connector with secure electrical contact

Non-Patent Citations (1)

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Title
See references of WO03012332A1 *

Also Published As

Publication number Publication date
KR20040025703A (ko) 2004-03-24
DE10136339C1 (de) 2003-02-27
WO2003012332A1 (fr) 2003-02-13
US20040245773A1 (en) 2004-12-09

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