EP0222736B1 - Joint à baionnette pour couvercle d'extincteur - Google Patents

Joint à baionnette pour couvercle d'extincteur Download PDF

Info

Publication number
EP0222736B1
EP0222736B1 EP19860890310 EP86890310A EP0222736B1 EP 0222736 B1 EP0222736 B1 EP 0222736B1 EP 19860890310 EP19860890310 EP 19860890310 EP 86890310 A EP86890310 A EP 86890310A EP 0222736 B1 EP0222736 B1 EP 0222736B1
Authority
EP
European Patent Office
Prior art keywords
ring
lid
recesses
container
claws
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 - Lifetime
Application number
EP19860890310
Other languages
German (de)
English (en)
Other versions
EP0222736A2 (fr
EP0222736A3 (en
Inventor
Rainer Cap
Franz Fichtinger
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.)
Osterreichische Feuerschutz GmbH
Original Assignee
Osterreichische Feuerschutz 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 Osterreichische Feuerschutz GmbH filed Critical Osterreichische Feuerschutz GmbH
Publication of EP0222736A2 publication Critical patent/EP0222736A2/fr
Publication of EP0222736A3 publication Critical patent/EP0222736A3/de
Application granted granted Critical
Publication of EP0222736B1 publication Critical patent/EP0222736B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C13/00—Portable extinguishers which are permanently pressurised or pressurised immediately before use
    • A62C13/76—Details or accessories
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D41/00—Caps, e.g. crown caps or crown seals, i.e. members having parts arranged for engagement with the external periphery of a neck or wall defining a pouring opening or discharge aperture; Protective cap-like covers for closure members, e.g. decorative covers of metal foil or paper
    • B65D41/02—Caps or cap-like covers without lines of weakness, tearing strips, tags, or like opening or removal devices
    • B65D41/04—Threaded or like caps or cap-like covers secured by rotation
    • B65D41/06—Threaded or like caps or cap-like covers secured by rotation with bayonet cams, i.e. removed by first pushing axially to disengage the cams and then rotating

Definitions

  • the invention relates to a bayonet closure for containers with a ring rigidly connected to the edge of the container opening and a form-fitable engagement with the ring by radial claws and recesses for pressure-tight closing of the container, the lid being a fitting for the discharge from below Has pressure in the container.
  • Bayonet closures for containers are used successfully in many areas. In connection with fire extinguishers, it has generally been preferred for safety reasons to screw a lid onto the edge of the container in order to prevent the lid from opening quickly. Disadvantages of such screw closures, however, are the fact that the containers sealed in this way generally only fully seal when internal pressure occurs and that, in the event of an existing residual pressure inside the container, the threads are pressed against each other when screwed on to the extent that a more secure one Pressure equalization is not guaranteed. A screw cap can therefore still lead to an unintentional, sudden lifting after leaving the last thread if there is residual pressure inside.
  • the invention now aims to develop a bayonet lock of the type mentioned, as it is particularly for devices which can be put under pressure similar to a fire extinguisher and which allow the contents of the container to be discharged under pressure via a corresponding fitting, so that the container is quick and safe can be opened to enable a new filling and that the container ensures complete tightness in the unpressurized state as well as in a state in which the container contents are pressurized. This is particularly necessary in connection with container contents that are harmful to health or otherwise questionable for storage and transport.
  • the bayonet lock according to the invention essentially consists in that the radial recesses are formed in a graduated manner in the circumferential direction, the graduations being spaced apart in the axial direction of the closure, that the ring rigidly connected to the edge of the opening has an internal, cylindrical or
  • the interior of the container which is tapered, is limited to the fact that a tubular extension that dips into the surface when it closes is connected to the lid, that the tubular extension has a circumferential seal, that the ring has a radial relief bore and / or groove, and that the seal when the claws engage in the first stage of the recesses via the relief bore and / or groove, a pressure-relieving connection with the interior of the container is released and in the second stage of the recesses the relief bore and / or groove is closed pressure-tight.
  • the design is such that the closure lid can first be brought into a first position without any significant effort, from which it is located If there is a residual pressure, it automatically performs a short stroke to the outside, and at the same time this stroke allows pressure compensation in the radial direction to the outside, so that any pressure fluid or pressure gases still present can flow out laterally.
  • the inner lateral surface into which the tubular extension with the seal is to be immersed is formed by a cylindrical or a conical surface tapering towards the interior of the container.
  • the closing stroke simultaneously ensures that the seal is pressed appropriately against the surrounding wall and that the tightness is ensured in the unpressurized state as well as in the state under pressure.
  • the cover can have inwardly jumping claws and the ring on its outer circumference can have the stepped recesses.
  • the design is advantageously made such that the lid carries a spring-loaded releasable radial locking pin which can be locked in the closed position with a recess in the ring.
  • the recess of the ring for locking the locking pin can be formed by the relief bore and / or groove.
  • the design is advantageously made such that the claws of the cover are arranged at uneven central angles distributed over the circumference, wherein preferably in the attachment position of the cover for pivoting the same into a first position corresponding to the first step of the recesses on the outer circumference of the ring, an inclined surface, preferably with generators pointing in the radial direction, is aligned with the locking pin in the axial direction, and the locking pin is supported on the outside of the ring when the cover is turned.
  • the cover preferably has at least one further radial relief bore above the level of the claws.
  • the circumferential seal connected to the tubular extension, the relief bore or relieving relief groove, the medium escaping via this relief bore or relief groove can escape unhindered via the radial bore of the cover, the direction in which the medium escapes also being predetermined by the relief bore.
  • the training is preferably such that three claws and stepped grooves or recesses are provided.
  • FIG. 1 shows a bayonet catch according to the invention for use in a fire extinguisher
  • 2 shows the ring rigidly connected to the container in plan view and FIG. 3, 4, 5 sections along the lines III-III, IV-IV, V-V of FIG. 2
  • 6 the ring in the rolled-up state
  • 7 shows the cover of the closure in plan view
  • 8 shows a section along the line VIII-VIII of FIG. 7
  • FIG. 9 shows a section along the line IX-IX of FIG. 7 with the shoulder inserted.
  • a bayonet lock 1 is used for the pressure-tight closure of a fire extinguisher 2.
  • the lid 3 of the closure 1 has a fitting 4 for dispensing the pressurized container contents.
  • a radial locking pin 5 is arranged on the outer circumference of the cover 3, which is biased by a leaf spring 6 via screws 7 and is intended to prevent the container from being opened unintentionally.
  • the ring 8 rigidly connected to the edge of the opening of the container 2, which together with the cover 3 forms the bayonet catch 1.
  • radial recesses 9 are arranged, which are designed in a stepped manner, as indicated by the dashed lines.
  • the ring 8 has a relief groove 10 which is arranged such that when the cover 3 engages with the ring 8 in the first stage of the recesses 9, the relief groove 10 is released and is only sealingly ground in the second stage.
  • an inclined surface 11 is arranged on the ring 8 in the attachment position of the cover 3 on the ring 8 in the axial direction in alignment with the locking pin 5.
  • the relief groove 10 also serves as a latching opening for the locking pin 5 when the cover 3 is rotated in the second stage of the recesses 9 until they stop. for additional centering of the cover 3 in the ring 8, the ring 8 has a stepped surface 12 on its inner circumference.
  • FIG. 3 clearly shows the first step of a recess 9, a representation having been chosen in which the cover 3 can no longer be removed only by movement in the axial direction.
  • the ring 8 also has a stepped surface 13 on its underside. The opening diameter a on the top of the ring 8 exceeds the diameter b on its underside and this results in a conical surface tapering towards the inside of the container as the inner circumferential surface 14 of the ring 8.
  • FIG. 4 shows a second step of a recess 9 and the inclined surface arranged above it 11.
  • the depth c of which is in any case less than the distance d from the upper edge of the second step of the recess 9 to the upper edge of the ring 8, in order to provide a sealing closure when the cover engages 3 to ensure in the second stage of the recesses 9 via a seal arranged on the cover, which is pressed against the outer surface 14 of the ring 8.
  • the stepped recesses 9 for receiving the claws of the cover 3 can be clearly seen.
  • the unequal distance e, f between the Recesses corresponds to the uneven center angles of the claws arranged on the cover.
  • the height of the steps of the recesses 9 is designated g.
  • claws 15 are indicated by dashed lines on the cover 3, which can be positively engaged with the recesses 9 of the ring 8.
  • the claws 15 are arranged in unequal center angles ⁇ and ß on the circumference of the cover 3, which ensures that the cover 3 can only be placed in one position in the recesses 9 provided on the ring 8, also at unequal intervals e, f. 16 denotes the hole for receiving the locking pin 5 and 17 holes for fixing the screws 7 for biasing the locking pin via the leaf spring.
  • the central opening 18 of the lid 3 serves to receive a tubular extension which projects into the interior of the container.
  • FIG. 9 shows the lid 3 with the tubular extension 19 which projects into the interior of the container when the lid is closed.
  • the stepped surface 20 of the extension 19 allows with the stepped surface 12 of the ring 8 a precise centering of the cover in the ring 8.
  • the seal 21 which can be pressed onto the conical outer surface 14 of the ring 8, the claws 15 in during the positive engagement the second stage of the recesses 9 reaches a sealing closure of the container 2.
  • the distance k of the seal 21 from the lower edge of the cover 3 must be selected larger than the depth c of the relief groove 10 in order to ensure a secure closure.
  • the distance k must be less than c and g in order to raise the cover 3 from the second to the first step of the recesses 9, these Shifting movement corresponds exactly to the step height g, to ensure an at least partial opening of the relief groove 10 and in this way to enable any pressure equalization.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Closures For Containers (AREA)

Claims (8)

  1. Joint à baïonnette pour récipient (2) comportant un anneau (8) relié de façon rigide au bord de l'orifice de récipient et un couvercle (3) qui peut être amené à saisir en engagement positif l'anneau (8) au moyen de griffe radiales (15) et d'évidements radiaux (9) afin de fermer d'une manière résistant à la pression le récipient (2), le couvercle (3) comportant un ensemble de soupape (4) pour la distribution du contenu du récipient maintenu sous pression, caractérisé en ce que les évidements radiaux (9) sont réalisés par degrés dans la direction périphérique, les degrés étant réalisés à distance l'un de l'autre dans la direction axiale de la fermeture, en ce que l'anneau (8) relié de façon rigide au bord de l'orifice de récipient limite une surface d'enveloppe (14) située à l'intérieur, cylindrique ou conique en direction de l'intérieur du récipient, en ce qu'un appendice tubulaire (19), plongeant dans la surface d'enveloppe (14) lors de la fermeture, est relié au couvercle (3), en ce que l'appendice tubulaire (19) présente un joint (21) disposé en direction périphérique, en ce que l'anneau (8) comporte un alésage radial et/ou une rainure (10) de décharge, et en ce que le joint (20) libère une liaison de décharge de pression avec l'intérieur du récipient, par l'intermédiaire de l'alésage et/ou de la rainure (10) de décharge, lors de la pénétration des griffes (15) dans le premier degré des évidements, et en ce qu'il ferme d'une façon résistant à la pression l'alésage et/ou la rainure (10) de décharge au deuxième degré des évidements (9).
  2. Fermeture à baïonnette selon la revendication 1, caractérisée en ce que le couvercle (3) comporte des griffes (15) sollicitées élastiquement vers l'intérieur et en ce que l'anneau (8) comporte les évidements (9) sur sa périphérie extérieure.
  3. Fermeture à baïonnette selon la revendication 1 ou 2, caractérisée en ce que le couvercle (3) porte une tige de verrouillage (5) sollicitée élastiquement, qui peut être libérée radialement et peut, dans la position de fermeture, être encliquetée avec un évidement de l'anneau (8).
  4. Fermeture à baïonnette selon la revendication 3, caractérisée en ce que l'évidement de l'anneau (8) destiné à l'encliquetage de la tige de verrouillage (5) est constitué par l'alésage et/ou la rainure (10) de décharge.
  5. Fermeture à baïonnette selon l'une des revendications 2 à 4 , caractérisée en ce que les griffes (15) du couvercle (3) sont disposées en étant réparties sur la périphérie selon des angles au centre inégaux (a, ß).
  6. Fermeture à baïonnette selon l'une des revendications 3 à 5, caractérisée en ce que, dans la Position de mise en place du couvercle (3), en vue du pivotement de ce dernier dans une première position sur la périphérie extérieure de l'anneau (8) correspondant au premier degré des évidements (9), une surface oblique (11), comportant de préférence des génératrices orientées en direction radiale, est disposée en affleurement, en direction axiale, avec la tige de verrouillage (5) et en ce que la tige de verrouillage (5) s'appuie sur le côté extérieur de l'anneau (8) lors de la rotation du couvercle (3).
  7. Fermeture à baïonnette selon l'une des revendications 2 à 6, caractérisée en ce que le couvercle (3) présente, au-dessus du plan des griffes (15), au moins un autre alésage radial de décharge.
  8. Fermeture à baïonnette selon l'une des revendications 1 à 7, caractérisée en ce que trois griffes (15) et trois rainures ou évidements (9) à degrés sont respectivement prévus.
EP19860890310 1985-11-12 1986-11-12 Joint à baionnette pour couvercle d'extincteur Expired - Lifetime EP0222736B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT3285/85 1985-11-12
AT328585A AT388103B (de) 1985-11-12 1985-11-12 Bajonettverschluss fuer behaelter, insbesondere in feuerloeschgeraeten

Publications (3)

Publication Number Publication Date
EP0222736A2 EP0222736A2 (fr) 1987-05-20
EP0222736A3 EP0222736A3 (en) 1988-10-12
EP0222736B1 true EP0222736B1 (fr) 1991-04-24

Family

ID=3548205

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19860890310 Expired - Lifetime EP0222736B1 (fr) 1985-11-12 1986-11-12 Joint à baionnette pour couvercle d'extincteur

Country Status (3)

Country Link
EP (1) EP0222736B1 (fr)
AT (1) AT388103B (fr)
DE (1) DE3678901D1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9205987U1 (de) * 1992-05-02 1992-07-23 Schäfer Werke GmbH, 5908 Neunkirchen Sicherheitsverschluß für Behälteranschluß
DE202009014607U1 (de) * 2009-10-29 2011-03-10 Jofo Pneumatik Gmbh Flaschenanschlusssystem für ein Auslösegerät
EP3285955B1 (fr) * 2015-04-24 2019-10-23 Hubbell Incorporated Moules de soudure par réaction exothermique, cartouches contenant du métal d'apport pour ces moules, et procédés d'utilisation
CN116969059B (zh) * 2023-08-30 2026-03-24 昆山博创智能制造有限公司 一种带有防滑内凹的塑胶瓶

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2665028A (en) * 1950-04-07 1954-01-05 Culligan Inc Closure assembly for tanks and other containers
GB1047122A (en) * 1964-08-06 1966-11-02 British Oxygen Co Ltd Safety pressure disconnect device for pressure vessels
GB1104001A (en) * 1964-12-09 1968-02-21 Eugene Joseph Treanor Closures for containers
GB1302202A (fr) * 1970-01-02 1973-01-04
CH516446A (de) * 1971-01-28 1971-12-15 Oskar Krieger Fa Druckgefäss mit einem Druckbehälter, einer Sicherheitsvorrichtugn und einem Deckel
US4444327A (en) * 1983-03-11 1984-04-24 Peter Hedgewick Tight vial assembly with one-piece cap
DE3407787A1 (de) * 1984-03-02 1985-09-12 Conrad Engelke GmbH & Co KG, 3000 Hannover Bajonettverschluss fuer den verschwenk- und verdrehbaren deckel eines druckkessels

Also Published As

Publication number Publication date
ATA328585A (de) 1988-10-15
EP0222736A2 (fr) 1987-05-20
AT388103B (de) 1989-05-10
DE3678901D1 (de) 1991-05-29
EP0222736A3 (en) 1988-10-12

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