EP1393779A1 - Abdichtungsvorrichtung zwischen Feuerlöscherkopf und Sclauchverbidungsstück - Google Patents

Abdichtungsvorrichtung zwischen Feuerlöscherkopf und Sclauchverbidungsstück Download PDF

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Publication number
EP1393779A1
EP1393779A1 EP03291945A EP03291945A EP1393779A1 EP 1393779 A1 EP1393779 A1 EP 1393779A1 EP 03291945 A EP03291945 A EP 03291945A EP 03291945 A EP03291945 A EP 03291945A EP 1393779 A1 EP1393779 A1 EP 1393779A1
Authority
EP
European Patent Office
Prior art keywords
dip tube
sealing
sleeve
head
fire extinguisher
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.)
Granted
Application number
EP03291945A
Other languages
English (en)
French (fr)
Other versions
EP1393779B1 (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 tight connection at the end of two pipes or equivalent and more specifically relates to a device sealing between a through passage of a head extinguisher allowing the expulsion of the extinguishing product, and a hose connection piece downstream of the passage, for the distribution of the product.
  • a pressurization gas cartridge allows, in use, pressurizing the fire extinguisher tank for delivery of the extinguishing product.
  • the butt connection end of the tubular head passage with the receiving nozzle flexible pipe is usually made using a often O-ring seal.
  • O-ring seal there are always a risk of uncontrolled displacement of the seal during of its mounting or even later.
  • the invention aims to solve the problem the maintenance in position of seals of this type.
  • the invention relates to a device sealing comprising a sealing ring arranged for be interposed between, on the one hand, an end surface a tubular passage, crossing a fire extinguisher head and designed to receive a dip tube, one section of which at the end in fact externally protruding, and on the other hand, an end surface of a connecting piece a hose, supplied by the dip tube, distribution of a product contained in the fire extinguisher, device characterized by the fact that it forms a cap the end section of the dip tube, the cap comprising a sleeve for receiving the section end of the dip tube, comprising, at one end, a diaphragm for closing the dip tube, arranged to be break under the effect of a predetermined pressure, the ring being integral with the sleeve and at a distance from the membrane.
  • the sealing ring intended to extend parallel to a radial plane of the tubular passage along its two main dimensions, rests on the outside of the dip tube by its sleeve which extends in a third dimension, that is to say axial, of the passage. So, the dip tube keeps the ring in position in the transverse plane that it occupies against any constraint tending to rotate it out of the plane or to drag it into this plane.
  • the membrane offset axially from the ring thanks to the sleeve offset, allows the fire extinguisher to be sealed when it is at rest, without pressure, which avoids all uncontrolled release of the extinguishing agent in the event of inadvertent overturning and isolates the ambient air extinguishing agent, which may be subject to degradation during storage by prolonged contact with the air.
  • the sleeve is intended to be pinched radially between an external surface of the end section of the dip tube and an internal surface of a section end of the hose connector.
  • the ring can be toroidal in shape and arranged to ensure a radial and axial seal, that is to say for, on the one hand, classically seal against radial leaks between the two end surfaces and, on the other hand, tightly enclose the section end of the dip tube to avoid bypassing the membrane from the outside of the section.
  • the membrane has at least one line of pressure sensitive pre-break.
  • FIG. 1 generally shows the elements main components of a fire extinguisher 1, outside type pressure at rest, fitted with a reservoir and a delivery of an extinguishing product.
  • Fire extinguisher 1 comprises a portable tank 10 of overall shape cylindrical containing a fluid extinguisher fire and a control and delivery head 20 of the product.
  • a high end 10A of the tank 10 here in dome shape, intended to receive the head 20, comprises a central or axial orifice, 10B for introduction, in manufacture of a cartridge 11 of pressurized gas for the pressurization of the interior volume of the reservoir 10.
  • the head 20 closes the orifice 10B, however being crossed by the tube plunger 12.
  • the head 20 comprises a head body 21 having a passage 22 for receiving the dip tube 12, one of which end 13, said to be high, or external, protrudes axially out of the reservoir 10.
  • the passage 22 presents itself in the form of a tubular conduit equivalent to a section of hose, fitted with an external end piece 31 for connecting a flexible, end piece 31 which is tightly mounted on the outer end of passage 22 by a cap seal 40, described later.
  • Cartridge 11 of pressurization is housed inside a fixed tube or housing 15 for holding in position.
  • the head 20 has a handle 23 for gripping the fire extinguisher and for controlling a cartridge 11 opening mechanism to deliver the gas under pressure inside the tank 10 so to generate, in the upper part, an increasing volume of gas under pressure expelling the extinguishing product through the tube plunger 12.
  • the handle 23 also includes a pin 24 of safety to avoid any inadvertent maneuver of untimely triggering.
  • Figure 2 is an exploded sectional view of the elements not connected from the outer end of passage 22 of the body head 21 and end piece 31.
  • End piece 31 consists of two coaxial sections 32, 33 cylindrical, of diameters different forming between them a shoulder 34.
  • the section external 32 of smaller diameter, axially has a series of annular reliefs 35 intended to ensure sealing and holding the hose (not shown).
  • a nut 36 for securing the outer end of the passage 22 of the head body 21 and of the end piece 31 comes position axially in abutment on the external surface of the shoulder 34 so that the internal surface of the nut 36 corresponds substantially to the external 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 end piece 31.
  • the sealing cap 40 is positioned between the outer end of the passage 22 of the head body 21 and the section 33 of the end piece 31.
  • the sealing cap 40 radially deformable and made of rubber or material equivalent, is intended to occupy a position of axial interposition between the surface 26 of the end external of passage 22 of head body 21 and surface 37 of the so-called lower end, internal 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 one which avoids mounting and / or leak.
  • the sealing cap 40 covers the outer end 13 of the dip tube 12.
  • the cylindrical wall 42 of the cap forming a sleeve is thus radially pinched with sealing between the external wall of the dip tube 12 and the inner wall of the section 33 of the end piece 31.
  • the ring seal 41 is thus maintained in the position sought interposition between the end surfaces opposed.
  • the wall of the sleeve 42 increases the mechanical inertia of the ring 41 and thus provides a increased resistance to radial deformation stresses who would likely kick him out of the area interposition, for example partial grooves in the two facing end surfaces.
  • element 42 in this example, is in the form of a skirt or cylindrical sleeve.
  • the sealing device could have lugs with axial extension bearing against a surface of at least one of the connected tubular elements.
  • Element 42 here a sleeve, could have been provided for a pressing 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 dip tube 12 or a little less, in order to exert an elastic tightening.
  • the above seal in the axial direction, outside the dip tube 12, is in fact intended to complete a internal axial sealing function, at the end of the tube plunger 12.
  • the cap 40 is closed at its so-called upper end, opposite to its so-called end lower here carrying the ring 41, by a membrane or sealing seal 43 arranged to rupture under the effect of a predetermined pressure.
  • the membrane 43 has at least one line, preferably two lines perpendicular to each other, constituting one or more thin areas and therefore pre-break, with increased pressure sensitivity.

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)
  • Pressure Vessels And Lids Thereof (AREA)
  • Seal Device For Vehicle (AREA)
  • Pipe Accessories (AREA)
  • Harvester Elements (AREA)
  • Buildings Adapted To Withstand Abnormal External Influences (AREA)
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
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
FR0210834 2002-09-02

Publications (2)

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

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4218954A1 (de) * 2022-01-28 2023-08-02 Carrier Corporation Schlauchanschluss für einen feuerlöscher

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0773043A2 (de) * 1995-11-09 1997-05-14 Minimax GmbH Tragbarer Feuerlöscher mit Schlagknopfhaube
EP0773044A1 (de) * 1995-11-09 1997-05-14 Usines Desautel S.A. Betätigungseinrichtung für Feuerlöscher
EP0965364A1 (de) * 1998-06-15 1999-12-22 Extincteurs Harden Schlauch für Feuerlöscher

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0773043A2 (de) * 1995-11-09 1997-05-14 Minimax GmbH Tragbarer Feuerlöscher mit Schlagknopfhaube
EP0773044A1 (de) * 1995-11-09 1997-05-14 Usines Desautel S.A. Betätigungseinrichtung für Feuerlöscher
EP0965364A1 (de) * 1998-06-15 1999-12-22 Extincteurs Harden Schlauch für Feuerlöscher

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4218954A1 (de) * 2022-01-28 2023-08-02 Carrier Corporation Schlauchanschluss für einen feuerlöscher

Also Published As

Publication number Publication date
DE60309987D1 (de) 2007-01-11
ATE346657T1 (de) 2006-12-15
FR2843888B1 (fr) 2004-10-22
FR2843888A1 (fr) 2004-03-05
EP1393779B1 (de) 2006-11-29
DK1393779T3 (da) 2007-04-02
DE60309987T2 (de) 2007-09-20

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