EP1393779B1 - Abdichtungsvorrichtung zwischen Feuerlöscherkopf und Sclauchverbidungsstück - Google Patents

Abdichtungsvorrichtung zwischen Feuerlöscherkopf und Sclauchverbidungsstück Download PDF

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Publication number
EP1393779B1
EP1393779B1 EP03291945A EP03291945A EP1393779B1 EP 1393779 B1 EP1393779 B1 EP 1393779B1 EP 03291945 A EP03291945 A EP 03291945A EP 03291945 A EP03291945 A EP 03291945A EP 1393779 B1 EP1393779 B1 EP 1393779B1
Authority
EP
European Patent Office
Prior art keywords
head
sealing device
sleeve
ring
dip tube
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
EP03291945A
Other languages
English (en)
French (fr)
Other versions
EP1393779A1 (de
Inventor
Jean-Pierre Maffini
François Deriaux
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.)
SICLI
Original Assignee
Compagnie Centrale Sicli SA
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 Compagnie Centrale Sicli SA filed Critical Compagnie Centrale Sicli SA
Publication of EP1393779A1 publication Critical patent/EP1393779A1/de
Application granted granted Critical
Publication of EP1393779B1 publication Critical patent/EP1393779B1/de
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

Definitions

  • the present invention is in the general field of the sealed connection at the end of two pipes or equivalents and relates more specifically to a sealing device between a through passage of a fire extinguisher head for the expulsion of extinguishing product, and a connection end of a hose downstream of the passage, for the distribution of the product.
  • a sealing device between a through passage of a fire extinguisher head for the expulsion of extinguishing product, and a connection end of a hose downstream of the passage, for the distribution of the product.
  • a pressurizing gas cartridge makes it possible, in use, to pressurize the extinguisher tank for delivery of the extinguishing product.
  • the end-to-end connection of the tubular head passage with the hose-receiving tip is usually accomplished by means of a often toric seal.
  • the invention aims to solve the problem of maintaining in position seals of this type.
  • the invention relates to a sealing device comprising a sealing ring arranged to be interposed between, on the one hand, an end surface of a tubular passage, passing through a fire extinguisher head and provided for receiving a dip tube having an end portion projecting therefrom externally, and, secondly, an end surface of a connecting piece of a hose, fed by the dip tube, for dispensing a product contained in the fire extinguisher, characterized in that it forms a sealing cap of the end section of the plunger tube, the cap comprising a sleeve, for receiving the end section of the plunger tube, comprising, at a end, a closure membrane of the plunger tube, arranged to rupture under the effect of a predetermined pressure, the ring being secured to the sleeve and at a distance from the membrane.
  • the sealing ring intended to extend parallel to a radial plane of the tubular passage according to its two main dimensions, is supported on the outside of the dip tube by its sleeve which extends in a third dimension, that is to say, axial passage.
  • the dip tube ensures the position of the ring in the transverse plane that it occupies against any constraint tending to rotate it out of the plane or to slide in this plane.
  • the membrane offset axially relative to the ring by means of the offset sleeve, allows to hermetically close the extinguisher when it is at rest, without pressure, which prevents any uncontrolled discharge of the extinguishing product. accidental spillage and isolates the extinguishing product from the ambient air, which could be damaged during storage by prolonged contact with the air.
  • the sleeve is provided to be clamped radially between an outer surface of the end section of the plunger tube and an inner surface of an end section of the hose connection endpiece.
  • the ring may be of toric shape and arranged to ensure a radial and axial seal, that is to say, firstly, to provide a conventional seal against radial leakage between the two end surfaces and, on the other hand, seal the end portion of the dip tube with sealing, thereby avoiding a circumvention of the membrane by the outside of the section.
  • the membrane has at least one pressure-sensitive pre-break line.
  • FIG. 1 generally shows the main components of a fire extinguisher 1, type resting at rest pressure, provided with a reservoir and a system for delivering a quenching product.
  • the fire extinguisher 1 comprises a portable tank 10 of generally cylindrical shape containing a fire extinguishing fluid product and a head 20 for controlling and delivering the product.
  • a high end 10A of the tank 10 here in the form of a dome, intended to receive the head 20, has a central or axial opening 10B for introducing, in the manufacture, a cartridge 11 of pressurized gas for pressurizing the volume inside the tank 10.
  • a plunger tube 12, for delivering the quenching product passes through the orifice 10B, its inner end, or low end, being close to the bottom of the tank 10.
  • the head 20 closes the orifice 10B , while being traversed by the plunger tube 12.
  • the head 20 comprises a head body 21 having a passage 22 for receiving the plunger tube 12, one end 13 of which, said to be high or external, protrudes axially out of the reservoir 10.
  • passage 22 is in the form of a tubular duct equivalent to a pipe section, equipped with an external end piece 31 for connecting a hose, end piece 31 which is sealingly mounted on the outer end of the passage 22 by a hoodie 40 sealing, described below.
  • the pressurization cartridge 11 is housed inside a fixed tube or housing 15 for holding in position.
  • the head 20 comprises a handle 23 for gripping the extinguisher and for controlling an opening mechanism of the cartridge 11 to deliver the pressurized gas into the tank 10 so as to to generate, at the top, an increasing volume of gas pressurized expelling the extinguishing product through the plunger tube 12.
  • the handle 23 also has a pin 24 of safety to avoid any untimely maneuver inadvertent tripping.
  • FIG. 2 is an exploded sectional view of the non-connected elements of the external end of the passage 22 of the head body 21 and of the endpiece 31.
  • the endpiece 31 consists of two coaxial sections 32, 33 of cylindrical diameters
  • the outer portion 32 of smaller diameter, has axially a series of annular reliefs 35 intended to seal and maintain the hose (not shown).
  • a nut 36 for securing the outer end of the passage 22 of the head body 21 and the endpiece 31 is positioned axially abutting on the outer surface of the shoulder 34 so that the inner surface of the nut 36 corresponds substantially to the outer surface of the section 33 of larger diameter.
  • the outer surface 25 of the outer end of the passage 22 of the head body 21 is threaded, which allows its connection, by screwing, with the section 33 of the endpiece 31.
  • the sealing cap 40 is positioned between the outer end of the passage 22 of the head body 21 and of the section 33 of the end piece 31.
  • the radially deformable sealing cap 40 made of rubber or equivalent material is intended to to occupy an axial interposition position between the surface 26 of the outer end of the passage 22 of the head body 21 and the surface 37 of the so-called lower end, inner side, of the section 33.
  • the assembly constituted by the ring 41, here at the end of the sleeve 42, the sleeve 42 and the membrane 43 is of a single holding, which avoids mounting and / or leakage problems.
  • the sealing cap 40 covers the outer end 13 of the plunger tube 12.
  • the cylindrical wall 42 of the cap forming a sleeve is thus radially pinched with sealing between the outer wall of the tube plunger 12 and the inner wall of the section 33 of the nozzle 31.
  • the sealing ring 41 is thus kept in the desired interposition position between the opposite end surfaces.
  • the wall of the sleeve 42 increases the mechanical inertia of the ring 41 and thus provides increased resistance to radial deformation stresses that would be able to expel it from the interposition zone, for example partial grooves in the two end surfaces facing each other.
  • the element 42 in this example, is in the form of a skirt or cylindrical sleeve.
  • the sealing device could comprise tabs with axial extension bearing against a surface of at least one of the connected tubular elements.
  • the element 42 here a sleeve, could have been provided for a support on a surface of at least one of the two pipes or equivalents that it connects.
  • the cap 40 has a radial sealing function, by the ring 41, and a sealing function in the axial direction because the internal diameter of the sleeve 42 and in particular of the ring 41 corresponds to the external diameter of the plunger tube 12 or to a little less, in order to exert an elastic tightening.
  • the sealing above in the axial direction, outside the plunger tube 12, is actually intended to complete an internal axial sealing function at the end of the plunger tube 12.
  • the cap 40 is closed at its end said upper, opposite its lower end bearing here the ring 41, by a membrane or sealing cap 43 arranged to break under the effect of a predetermined pressure.
  • the membrane 43 has at least one line, preferably two lines perpendicular to one another, constituting one or more zones of smaller thickness and therefore of pre-rupture, with increased sensitivity to pressure.
  • the resistance of the membrane 43 is sufficient to oppose the flow of the product, under the effect of its own weight.

Landscapes

  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Non-Disconnectible Joints And Screw-Threaded Joints (AREA)
  • Seal Device For Vehicle (AREA)
  • Pipe Accessories (AREA)
  • Harvester Elements (AREA)
  • Buildings Adapted To Withstand Abnormal External Influences (AREA)
  • Pressure Vessels And Lids Thereof (AREA)

Claims (4)

  1. Abdichtungsvorrichtung, einen Abdichtungsring (41) umfassend, konzipiert um eingefügt zu werden zwischen einerseits einer Endfläche eines einen Feuerlöscherkopf (20) durchquerenden rohrförmigen Durchgangs (22), vorgesehen, um ein Tauchrohr (12) aufzunehmen, dessen ein Endstück (13) nach außen vorsteht, und andererseits einer Endfläche eines Anschlussstücks (31) eines durch das Tauchrohr (12) gespeisten Verteilungsschlauchs eines in dem Feuerlöscher enthaltenen Produkts,
    dadurch gekennzeichnet, dass sie eine Abdichtungskappe (40) des Endstücks (13) des Tauchrohrs (12) bildet, wobei die Kappe (40) eine Muffe (42) zur Aufnahme des Endstücks (13) des Tauchrohrs (12) umfasst, die an einem Ende eine Membran (43) zum Verschließen des Tauchrohrs (12) aufweist, die so konzipiert ist, dass sie unter der Wirkung eines vorher festgelegten Drucks reißt, wobei der Ring (41) aus einem Stück mit der Muffe (42) ist und zu der Membran (43) einen Abstand hat.
  2. Abdichtungsvorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass die Muffe (42) dazu bestimmt ist, radial eingeklemmt zu werden zwischen einer Außenfläche des Endstücks (13) des Tauchrohrs (12) und einer Innenfläche des Endstücks (33) des Schlauchanschlussstücks (31).
  3. Abdichtungsvorrichtung nach einem der Ansprüche 1 und 2, dadurch gekennzeichnet, dass der Ring (41) wulstförmig ist und so konzipiert, dass er eine radiale und axiale Abdichtung gewährleistet.
  4. Abdichtungsvorrichtung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die Membran (43) wenigstens eine für den Druck empfindliche Vorreiß- bzw. Sollreißlinie aufweist.
EP03291945A 2002-09-02 2003-08-01 Abdichtungsvorrichtung zwischen Feuerlöscherkopf und Sclauchverbidungsstück Expired - Lifetime EP1393779B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0210834 2002-09-02
FR0210834A FR2843888B1 (fr) 2002-09-02 2002-09-02 Dispositif d'etancheite entre un passage d'une tete d'extincteur et un embout de raccordement d'un flexible

Publications (2)

Publication Number Publication Date
EP1393779A1 EP1393779A1 (de) 2004-03-03
EP1393779B1 true EP1393779B1 (de) 2006-11-29

Family

ID=31198347

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03291945A Expired - Lifetime EP1393779B1 (de) 2002-09-02 2003-08-01 Abdichtungsvorrichtung zwischen Feuerlöscherkopf und Sclauchverbidungsstück

Country Status (5)

Country Link
EP (1) EP1393779B1 (de)
AT (1) ATE346657T1 (de)
DE (1) DE60309987T2 (de)
DK (1) DK1393779T3 (de)
FR (1) FR2843888B1 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4218954B1 (de) * 2022-01-28 2026-04-01 Carrier Corporation Schlauchanschluss für einen feuerlöscher

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19541708B4 (de) * 1995-11-09 2004-05-06 Minimax Gmbh Tragbarer Feuerlöscher mit Schlagknopfhaube
FR2740979B1 (fr) * 1995-11-09 1998-01-09 Usines Desautel Sa Dispositif de manoeuvre d'un extincteur
FR2779656B1 (fr) * 1998-06-15 2000-08-11 Extincteurs Harden Tube detasseur pour extincteur a gaz auxiliaire propulseur de poudre extinctrice, tete d'extincteur associee audit tube et extincteur comprenant une telle tete

Also Published As

Publication number Publication date
DE60309987T2 (de) 2007-09-20
ATE346657T1 (de) 2006-12-15
DK1393779T3 (da) 2007-04-02
FR2843888B1 (fr) 2004-10-22
FR2843888A1 (fr) 2004-03-05
DE60309987D1 (de) 2007-01-11
EP1393779A1 (de) 2004-03-03

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