WO1988004748A1 - Dispositif pour raccordement de deux conduites vehiculant du fluide - Google Patents

Dispositif pour raccordement de deux conduites vehiculant du fluide Download PDF

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Publication number
WO1988004748A1
WO1988004748A1 PCT/EP1987/000785 EP8700785W WO8804748A1 WO 1988004748 A1 WO1988004748 A1 WO 1988004748A1 EP 8700785 W EP8700785 W EP 8700785W WO 8804748 A1 WO8804748 A1 WO 8804748A1
Authority
WO
WIPO (PCT)
Prior art keywords
coupling
face
sealing element
conical surface
locking groove
Prior art date
Application number
PCT/EP1987/000785
Other languages
German (de)
English (en)
Inventor
Xaver Bachmeir
Original Assignee
Xaver Bachmeir
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 Xaver Bachmeir filed Critical Xaver Bachmeir
Publication of WO1988004748A1 publication Critical patent/WO1988004748A1/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L37/00—Couplings of the quick-acting type
    • F16L37/008—Couplings of the quick-acting type for branching pipes; for joining pipes to walls
    • 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

Definitions

  • the invention relates to a coupling for connecting two fluid-carrying lines according to the preamble of claim 1.
  • Such a coupling is known from DE-OS 27 58341.
  • This comprises a coupling outer part provided with a smooth cylindrical inner surface and a coupling inner part equipped with a conically widening outer surface and at least one locking groove.
  • an elastic sealing element seated on the coupling inner part is pushed through the coupling outer part over the expanding conical outer surface of the inner part until the frictional force transmitted by the restoring force of the stretched sealing element to a locking groove of the inner part becomes greater than that between the sealing element and the coupling outer part effective force.
  • the sealing element Due to out-of-roundness or differences in roughness, the sealing element is not always carried uniformly all over the circumference, so that in the coupled state the position of the sealing element in a plane perpendicular to the longitudinal axis of the coupling cannot be guaranteed with certainty.
  • such a coupling is also not suitable for lines carrying higher pressures, since their cohesion is ensured solely by the frictional engagement between the sealing element and the smooth wall of the outer coupling part.
  • the invention has for its object to provide a coupling of this type which, with simple operation, enables a secure and tight connection even of lines which carry a fluid under pressure.
  • This object is achieved by applying the features of the characterizing part of patent claim 1.
  • the sealing element is always guided in a plane perpendicular to the longitudinal axis of the coupling during the coupling process, so that it is not subject to uncontrollable distortions and crushing.
  • the sealing element also fulfills the function of a form-locking element, which means that the arrangement can also be used at higher pressures.
  • FIG. 2 shows a partial longitudinal section through a coupling according to the invention in a pushed together, not yet coupled state
  • FIG. 3 shows a partial longitudinal section through a coupling according to the invention in the coupled state
  • Fig. 4 shows a modification of a coupling according to the invention in a separated state in the longitudinal section
  • Fig. 5 shows a further modification of the coupling in partial longitudinal section.
  • the guide bush 3 has a cylindrical outer surface 4 in its central part.
  • a collar 5 of L-shaped cross section is provided on the guide bushing 3, the front end face of which is designated by 6, the cylindrical side face of which is designated by 7, and the annular rear face of which is designated by 8.
  • a groove 9 remains between the outer surface 4 and the collar 5.
  • a coupling sleeve 10 is located on the cylindrical outer surface 4 slidably mounted. The coupling sleeve 10 has at its end facing the collar 5 a conical surface 11 and at its larger diameter towards the center an annular locking groove 12.
  • the coupling sleeve 10 On its side facing the first fluid-carrying line 1, the coupling sleeve 10 is expanded in its diameter to a hollow cylindrical handle piece 13 such that this part can be moved over the line 1 with ample play.
  • annular coupling outer part 15 is inserted perpendicular to the longitudinal axis thereof and is firmly connected to that at play swei se by gluing.
  • the outer coupling part 15 has an end 16 which narrows the inside diameter at its end facing the inside of the line 14.
  • the zyl indiser venezfl kaue 17 of the Kuppl ungsau derteil s 15 has in a distance A from the al s seat surface 18 for the feet 'guide bush 3 serving end face face of the projection 16 a second annular locking groove 19. The distance A is greater than s the axial extent of the conical surface 11 of the displaceable coupling sleeve 10.
  • an annular elastic sealing element 20 is axially movable on the displaceable coupling sleeve 10.
  • a commercially available O-ring is preferably used as the sealing element 20.
  • the inside diameter of the sealing element 20 corresponds approximately to the smallest diameter of the conical surface 11 of the coupling sleeve 10.
  • the sealing element 20 lies against the rear end face 8 of the collar 5.
  • the guide bush 3 of the inner coupling part s is first inserted with its collar 5 into the outer coupling part 15.
  • the side surface 7 of the federal government 5, in cooperation with the cylindrical inner surface 17 of the outer coupling part 15, ensures precise guidance of the inner coupling part s.
  • the seat surface 18 at the shoulder 16 of the outer coupling part 15 forms an axial limitation for the insertion path of the guide bushing 3.
  • the coupling sleeve 10 which can be knurled to increase the grip on the outer circumference of the handle piece 13, is advanced in the direction of the line 14.
  • the coupling sleeve 10 dips into the groove 9.
  • the sealing element 20 is pushed from the rear end face 8 of the collar 5 over the flared conical surface 11 of the coupling sleeve 10 and expanded until it is in the final stage of the coupling process with its inner peripheral part in the locking groove 12 and with its outer peripheral part in the locking groove 19 of the outer coupling part 15 lies (FIG. 3).
  • the two locking grooves 12, 19 and the rear end face 8 of the collar 5 enclose the sealing element 20 so closely that it is slightly compressed in the radial and axial directions and thus seals the gap between the two coupling parts.
  • the sealing element 20 also serves as a form-locking element which opposes a violent separation of the two coupling parts, the force required to shear off its largest cross section.
  • the separation of the two coupling parts takes place in reverse order.
  • the sealing element 20 slips due to its elasticity from the locking groove 12 and subsequently on the conical surface 11 of the coupling sleeve 10 forward.
  • the two coupling parts can then be easily pulled apart.
  • the arrangement of the two lines 1, 14 perpendicular to one another described in the above exemplary embodiment is not absolutely necessary.
  • a lateral connection at an angle deviating from 90 ° is also conceivable, as is a coaxial arrangement, shown in FIG. 1, of the two lines to be coupled.
  • the collar-shaped collar 5 can be made in one piece with the guide bushing 3 or - as shown in FIG. 4 - can subsequently be firmly connected to the end thereof as a ring 23 with an L-shaped cross section.
  • the coupling sleeve 10 has a plurality of axially extending slots 24, which extend from the conical surface 10 via the locking groove 12 to the handle 13.
  • the guide bush 3 has an elevation 25 at an axial distance from the end face 8, so that between each elevation 25 and the end face 8 there is a recess 26 in which the sealing element 20 is arranged.
  • the Dic processing ring 20 is held securely on the guide bushing 3.
  • the coupling sleeve 10 is additionally guided axially without any problems.
  • the guide bush 3 also has in the area of
  • the web 28 in conjunction with the recess 27 serves to limit the axial displacement of the coupling sleeve 10 on the guide bushing 3.
  • the web 28 can have axially extending blanks.

Landscapes

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

Abstract

Dans un dispositif permettant le raccordement de deux conduites (1, 14) véhiculant du fluide, la partie intérieure comporte une douille de guidage (3) solidaire de la première conduite (1) et un manchon d'accouplement (10) coulissant de manière limitée axialement sur ladite douille. Sur une face conique (11) du manchon d'accouplement (10) est monté axialement mobile un élément d'étanchéité élastique (20). Pour réaliser l'accouplement, on introduit d'abord la douille de guidage (3), pourvue à son extrémité d'un collier (5) de section en forme de L, dans une partie extérieure d'accouplement (15) solidaire de la deuxième conduite (14). L'avancement du manchon d'accouplement (10) fait glisser l'élément d'étanchéité (20) depuis la face extérieure (8) arrière du collier (5) en passant par la face conique (11) dudit manchon. En position finale, l'élément d'étanchéité élargi repose, par sa face intérieure, dans une rainure d'arrêt (12) adjacente à la face conique (11), et par sa face extérieure, dans une seconde rainure d'arrêt (19) ménagée sur la paroi intérieure (17) de la partie extérieure d'accouplement (15). L'élément d'étanchéité (20) est ainsi étroitement entouré par les deux rainures d'arrêt (12, 19) et la face extérieure arrière (8) du collier (5) et fait en outre fonction d'élément de liaison de forme.
PCT/EP1987/000785 1986-12-19 1987-12-16 Dispositif pour raccordement de deux conduites vehiculant du fluide WO1988004748A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEP3643441.8 1986-12-19
DE19863643441 DE3643441C1 (de) 1986-12-19 1986-12-19 Kupplung zur Verbindung zweier fluidfuehrender Leitungen

Publications (1)

Publication Number Publication Date
WO1988004748A1 true WO1988004748A1 (fr) 1988-06-30

Family

ID=6316589

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1987/000785 WO1988004748A1 (fr) 1986-12-19 1987-12-16 Dispositif pour raccordement de deux conduites vehiculant du fluide

Country Status (2)

Country Link
DE (1) DE3643441C1 (fr)
WO (1) WO1988004748A1 (fr)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1277984A (fr) * 1960-07-28 1961-12-08 Dispositif de verrouillage avec pêne expansible torique
GB949533A (en) * 1962-02-09 1964-02-12 Preferred Engineering And Res Quick disconnect coupling

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2758341A1 (de) * 1977-12-27 1979-06-28 Lauterbacher Blechhwaren Fabri Formstueck fuer die dichtende steckverbindung von leitungen

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1277984A (fr) * 1960-07-28 1961-12-08 Dispositif de verrouillage avec pêne expansible torique
GB949533A (en) * 1962-02-09 1964-02-12 Preferred Engineering And Res Quick disconnect coupling

Also Published As

Publication number Publication date
DE3643441C1 (de) 1988-03-17

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