EP0197249B1 - Dispositif d'accouplement du type à baionette pour l'assemblage de deux pièces cylindriques creuses - Google Patents

Dispositif d'accouplement du type à baionette pour l'assemblage de deux pièces cylindriques creuses Download PDF

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Publication number
EP0197249B1
EP0197249B1 EP86101131A EP86101131A EP0197249B1 EP 0197249 B1 EP0197249 B1 EP 0197249B1 EP 86101131 A EP86101131 A EP 86101131A EP 86101131 A EP86101131 A EP 86101131A EP 0197249 B1 EP0197249 B1 EP 0197249B1
Authority
EP
European Patent Office
Prior art keywords
shoulder
parts
connecting ring
cams
ring
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.)
Expired
Application number
EP86101131A
Other languages
German (de)
English (en)
Other versions
EP0197249A1 (fr
Inventor
Dieter Jühling
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.)
Sulzer AG
Original Assignee
Gebrueder Sulzer AG
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 Gebrueder Sulzer AG filed Critical Gebrueder Sulzer AG
Publication of EP0197249A1 publication Critical patent/EP0197249A1/fr
Application granted granted Critical
Publication of EP0197249B1 publication Critical patent/EP0197249B1/fr
Expired legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
    • H01R13/625—Casing or ring with bayonet engagement

Definitions

  • the invention relates to a bayonet-type coupling, in particular for an electrical connector, a first hollow-cylindrical part being connected coaxially in a pressure-tight manner to a second hollow-cylindrical part, and in this connected state the first part having an axial extension is inserted into a correspondingly shaped axial recess in the second part and an annular seal is provided between two mutually opposing end faces of the two parts, and furthermore one of the two parts is provided with a shoulder and with an axially displaceable and rotatable connecting ring which overlaps the latter and has radially projecting cams on its inner surface which are used for the purpose of connecting of the two parts cooperate with suitably shaped and arranged projections of the other part.
  • Couplings of this type are used in various fields of technology and have the advantage that a tight connection of the two hollow cylindrical parts can be quickly established and also quickly released again.
  • This property is important, for example, when connecting power and control cables to pressure-carrying valves and their drives, because such cables often have to be loosened and tightly connected during overhaul and inspection work.
  • the elastic ring seal is loaded unevenly on the circumference. This can lead to premature wear of the ring seal, so that - in the interest of safety - frequent seal changes are necessary, which increase the maintenance and operating costs.
  • the handling of the coupling according to the invention requires approximately the same amount of time as that of the conventional coupling, in which the connecting ring has to be rotated with greater effort.
  • the coupling designated as a whole by 1 has a first hollow cylindrical part 2 and a second hollow cylindrical part 3, which are arranged coaxially to one another.
  • the first part 2 is inserted with a shoulder 2 'in a corresponding recess 3' of the second part 3, an elastic ring seal 4 in the form of an O-ring being arranged between two opposing end faces 5 'and 6 of parts 2 and 3.
  • the O-ring 4, which surrounds the extension 2 ', lies in an annular groove which is located at the transition from the extension 2' to a flange-like shoulder 5 of the first part 2.
  • a connecting ring 7 surrounds the shoulder 5 of the first part 2 and the region of the second part 3 adjacent to the shoulder.
  • the connecting ring 7 has at its end facing the part 3 three radially inwardly directed cams 12 in the form of riveted pins, each in engage one of three grooves 13 which run helically in the outer circumference of the second part 3, namely in the manner of a right-hand thread.
  • the grooves 13 are open at the end face 6 and closed at the other end. They extend approximately over a third of the circumference of part 3.
  • the closed end of the grooves 13 runs - in contrast to the rest of the course - a short distance at right angles to the coupling axis, so that the pins 12 assume a locking position at the closed end of the grooves.
  • a screw ring 8 is provided above the shoulder 5 between the first part 2 and the connecting ring 7 and is screwed with its external thread into an internal thread of the connecting ring 7.
  • the lower surface of the screw ring 8 in the drawing is supported by an annular, formed from a corrugated elastic sheet metal spring 9 and a washer 10 on a shoulder surface 11, which is the surface of the shoulder 5 facing away from the second part 3.
  • the screw ring 8 here forms the clamping means acting between the connecting ring 7 and the first part 2.
  • both rings are provided with knurling 7 'and 8' on the outer circumference.
  • the projection 2 ' has a narrow longitudinal groove 15, to which a rib 16 is suitably provided in the recess 3' in order to prevent the first and second parts 2 and 3 from rotating relative to one another.
  • a cable 17 containing signal lines Arranged within the first part 2 is a cable 17 containing signal lines, which is connected to a connector half 1 T, which is tightly fastened in the interior of the first part 2 and is made of plastic.
  • the connector pins are designated 18.
  • the coupling 1 is connected as follows: the first part 2 is inserted with its shoulder into the recess 3 'of the second part 3, the rib 16 having to be aligned with the longitudinal groove 15, so that incorrect contacts are formed between the two halves 17 'and 19' of the plug is avoided. Thereafter, the connecting ring 7 is pressed slightly against the second part 3 and rotated until the pins 12 engage in the helical grooves 13 and engage at the closed end of the grooves. The screw ring 8 must be set so that in this locking position it presses the spring 9 only slightly against the washer 10, so that the O-ring 4 is loaded only slightly when the connecting ring 7 is turned. So far, the first connection step has been carried out, and there is only a loose connection state.
  • the screw ring 8 is turned by hand until it presses firmly on the spring 9 and further compresses the O-ring 4 via the washer 10 and the shoulder 5.
  • the O-ring is loaded only when rotating the ring 8 in the axial direction and evenly over its circumference. Even in this loaded condition, the spring 9 protects the O-ring 4 against excessive stress caused by non-axial forces that act on the clutch 1.
  • the coupling is now in its fixed connection state. The clutch 1 is released in the reverse order of the steps described above.
  • the wall sections of part 3 which have remained between the grooves 13 form the projections which cooperate with the cams 12.
  • These projections and the cams could, however, also be designed such that when the loose connection is established, they are first only moved axially against one another, moving past one another, and only then is the connecting ring rotated, so that the cams - in the axial direction of the coupling seen - come to lie behind the projections. It is possible that the ring seal is still practically unloaded in this loose connection state. Then, in the second connection step, the ring seal is pressed together using the screw ring.
  • the ring seal 4 can - instead of between the end faces 5 'and 6' - be arranged between the two halves 17 'and 19' of the plug, wherein the diameter of the shoulder 5 can be reduced somewhat.
  • a lever system known from snap locks can be used as the clamping means.
  • the clamping means can also engage between the said ring and the second part.

Landscapes

  • Quick-Acting Or Multi-Walled Pipe Joints (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)

Claims (5)

1. Dispositif d'accouplement à baïonnette, en particulier pour un connecteur électrique, un premier élément cylindrique creux étant relié coaxialement, de manière étanche à la pression, à un deuxième élément cylindrique creux et, dans cet état relié, un embout axial du premier élément étant enfiché dans un évidement axial adapté correspondant du deuxième élément, un joint annulaire d'étanchéité étant prévu entre deux surfaces frontales en vis-à-vis des deux éléments et, de plus, un des deux éléments étant pourvu d'un épaulement et, recouvrant celui-ci, d'une bague de connexion axialement mobile et rotative, qui présente sur sa face intérieure des ergots faisant saillie radialement, lesquels, en vue de connecter les deux éléments, coopèrent avec des parties en saillie de l'autre élément adaptées quant à la forme et à l'emplacement, caractérisé en ce que sont prévus des organes de serrage qui agissent entre la bague de connexion et l'un des deux éléments et qui, à l'état relié, provoquent un mouvement relatif de l'élément présentant les parties en saillie par rapport à lélément présentant l'épaulement, dans le sens d'une compression ou d'une poursuite de la compression du joint annulaire d'étanchéité.
2. Dispositif d'accouplement selon la revendication 1, caractérisé en ce que les organes de serrage agissent entre ia bague de connexion et l'élément présentant l'épaulement.
3. Dispositif d'accouplement selon la revendication 2, caractérisé en ce que les organes de serrage sont constitués par une bague filetée qui peut être vissée dans la bague de connexion et qui s'appuie, lors du serrage, sur l'épaulement.
4. Dispositif d'accouplement selon l'une des revendications 1 à 3, caractérisé en ce qu'un ressort est placé entre l'épaulement et la bague de connexion recouvrant celui-ci.
5. Dispositif d'accouplement selon l'une des revendications 1 à 4, caractérisé en ce que les parties en saillie coopérant avec les ergots sont constituées par des rainures de forme hélicoïdale, insérées entre eux, dans lesquelles s'enclenchent les ergots lors de la connexion des éléments et en ce que les rainures de forme helicoïdale sont, à leur extrémité fermée, orthogonales sur une courte portion à l'axe de l'élément cylindrique creux correspondant.
EP86101131A 1985-03-06 1986-01-29 Dispositif d'accouplement du type à baionette pour l'assemblage de deux pièces cylindriques creuses Expired EP0197249B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH1007/85 1985-03-06
CH1007/85A CH667164A5 (de) 1985-03-06 1985-03-06 Bajonettartige kupplung zum verbinden zweier hohlzylindrischer teile.

Publications (2)

Publication Number Publication Date
EP0197249A1 EP0197249A1 (fr) 1986-10-15
EP0197249B1 true EP0197249B1 (fr) 1989-03-22

Family

ID=4200271

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86101131A Expired EP0197249B1 (fr) 1985-03-06 1986-01-29 Dispositif d'accouplement du type à baionette pour l'assemblage de deux pièces cylindriques creuses

Country Status (5)

Country Link
US (1) US4648635A (fr)
EP (1) EP0197249B1 (fr)
JP (1) JPS61206184A (fr)
CH (1) CH667164A5 (fr)
DE (1) DE3662549D1 (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0628186B2 (ja) * 1986-10-17 1994-04-13 第一電子工業株式会社 弛み防止コネクタ
JPH0628187B2 (ja) * 1986-10-30 1994-04-13 第一電子工業株式会社 弛み防止コネクタ
US5584084A (en) * 1994-11-14 1996-12-17 Lake Medical Products, Inc. Bed system having programmable air pump with electrically interlocking connectors
US6095572A (en) 1998-01-20 2000-08-01 Optimize Technologies, Inc. Quarter turn quick connect fitting
AUPP794598A0 (en) † 1998-12-24 1999-01-28 Resmed Limited An anti-asphyxia valve
US20050158189A1 (en) * 2004-01-16 2005-07-21 Meiko Pet Corporation Small air pump
EP2106547B1 (fr) * 2007-01-09 2019-10-30 Optimize Technologies, Inc. Raccord haute pression
US8439593B2 (en) * 2009-11-10 2013-05-14 Imds Corporation Quarter turn locking mechanism
DE102013022011A1 (de) * 2013-12-20 2015-06-25 Kostal Kontakt Systeme Gmbh Steckverbinderanordnung
DE102015207168B4 (de) * 2015-04-21 2020-02-27 Bayerische Motoren Werke Aktiengesellschaft Rohrverbindung

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB191010638A (en) * 1910-04-30 1911-05-18 William Morritt Smith Improvements in and relating to Hose and like Pipe Couplings.
US1885321A (en) * 1930-05-15 1932-11-01 F L Parsons Pipe coupling
GB507518A (en) * 1938-02-28 1939-06-16 James Eldon Read Improvements in quickly detachable couplings
US2466892A (en) * 1946-02-19 1949-04-12 Stanley B Holmes Beer tap
DE1500840A1 (de) * 1966-07-22 1969-11-27 Mccarthy John J Mechanische Kupplung
DE2604807A1 (de) * 1976-02-07 1977-09-01 Schiffmann Gmbh Alois Kupplung fuer teleskopstangen aus kunststoff
DE2728133A1 (de) * 1977-06-22 1979-05-17 Siemens Ag Bajonettverschluss
NL7904727A (nl) * 1978-06-20 1979-12-27 Bunker Ramo Electrisch verbindingsorgaan.
GB2039161B (en) * 1979-01-05 1982-11-03 Plessey Co Ltd Quick release bayonet coupling
SE445082B (sv) * 1981-08-31 1986-05-26 Bofors Ab Feste for induktiv elkopplare
DE3233120A1 (de) * 1982-09-07 1984-03-08 ANT Nachrichtentechnik GmbH, 7150 Backnang Steckverbinder mit zwei mittels einer ueberwurfmutter zusammenkuppelbaren steckerteilen
US4464001A (en) * 1982-09-30 1984-08-07 The Bendix Corporation Coupling nut having an anti-decoupling device

Also Published As

Publication number Publication date
EP0197249A1 (fr) 1986-10-15
US4648635A (en) 1987-03-10
DE3662549D1 (en) 1989-04-27
CH667164A5 (de) 1988-09-15
JPS61206184A (ja) 1986-09-12

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