EP0788815A2 - Levier de pression avec soupape pour extincteur d'incendie sous pression permanente - Google Patents

Levier de pression avec soupape pour extincteur d'incendie sous pression permanente Download PDF

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Publication number
EP0788815A2
EP0788815A2 EP97101877A EP97101877A EP0788815A2 EP 0788815 A2 EP0788815 A2 EP 0788815A2 EP 97101877 A EP97101877 A EP 97101877A EP 97101877 A EP97101877 A EP 97101877A EP 0788815 A2 EP0788815 A2 EP 0788815A2
Authority
EP
European Patent Office
Prior art keywords
valve
bore
pressure
valve body
container
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
EP97101877A
Other languages
German (de)
English (en)
Other versions
EP0788815B2 (fr
EP0788815A3 (fr
EP0788815B1 (fr
Inventor
Daniel Hofer
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.)
GNUTTI CIRILLO S.P.A.
Original Assignee
Daniel Hofer
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=8019228&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0788815(A2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Daniel Hofer filed Critical Daniel Hofer
Publication of EP0788815A2 publication Critical patent/EP0788815A2/fr
Publication of EP0788815A3 publication Critical patent/EP0788815A3/fr
Application granted granted Critical
Publication of EP0788815B1 publication Critical patent/EP0788815B1/fr
Publication of EP0788815B2 publication Critical patent/EP0788815B2/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
    • A62C13/62—Portable extinguishers which are permanently pressurised or pressurised immediately before use with a single permanently pressurised container
    • A62C13/64—Portable extinguishers which are permanently pressurised or pressurised immediately before use with a single permanently pressurised container the extinguishing material being released by means of a valve

Definitions

  • the invention relates to a pressure lever valve for continuous pressure fire extinguishers according to the preamble of claim 1.
  • Continuous pressure fire extinguishers consist of a container that holds the powdered extinguishing agent and is pressurized using compressed nitrogen.
  • a riser pipe arranged in the container serves to discharge the extinguishing agent.
  • a valve is screwed onto the neck of the container, to which the riser pipe is also screwed.
  • the valve has a valve bore which connects the riser pipe to a connection opening on the side of the valve body.
  • a valve tappet is axially displaceably mounted in the valve bore, which opens or closes the valve bore and accordingly releases or closes the passage between the riser pipe and the connection opening.
  • the valve lifter is held in the closed position by spring loading. By means of a pressure lever mounted on the valve body, the valve tappet can be brought into the open position against the spring force.
  • a nozzle is attached to the connection opening in order to discharge the extinguishing agent under pressure through the riser pipe and the connection opening when the fire extinguisher is open.
  • the connection opening is also used during filling and during maintenance to introduce the nitrogen gas into the container under pressure.
  • a pressure gauge attached to the valve is used for this purpose, which is connected to the inside of the container via a pressure hole stands.
  • the valve also has a test socket, which is also connected to the inside of the container via a pressure hole.
  • the test socket is used to connect an external pressure tester when servicing the fire extinguisher.
  • the test socket can also be equipped with a rupture disc device as a safeguard against excess pressure in the container.
  • valve body is made of brass.
  • a threaded connector on the valve body, to which the manometer is screwed, is used to connect the manometer.
  • the screw connection of the pressure gauge to the valve body represents a possible leak that can lead to pressure losses.
  • the screwed-on manometer increases the overall dimensions of the valve.
  • the invention has for its object to improve a pressure lever valve of the type mentioned so that its function is more reliable and the overall dimensions are reduced.
  • the manometer installed in the valve body is preferably connected to the test nozzle via a transverse bore within the valve body.
  • the internal pressure of the container can thus be transmitted to the manometer and to the test socket via a single common pressure bore, so that the valve is of simple construction.
  • This pressure bore is expediently arranged parallel to and offset from the valve bore and opens into the transverse bore that connects the pressure gauge to the test socket.
  • the pressure lever valve for a continuous pressure fire extinguisher has a one-piece valve body 10 made of brass. At the bottom of the valve body 10, an external thread 11 is formed, which is screwed sealingly into an internal thread of the neck of the container for fastening the valve body 10 to an extinguishing agent container, not shown.
  • a riser pipe of the extinguishing agent container is screwed with a thread into an internal thread of the valve body 10, which is formed coaxially within the external thread 11.
  • the valve body 10 is axially penetrated by a valve bore 20 from top to bottom.
  • the valve bore 20 widens conically at its lower end to the diameter of the riser pipe.
  • the conical extension forms a valve seat.
  • a valve tappet is guided axially displaceably in the valve bore 20, at the lower end of which a valve cone is formed which cooperates with the valve seat of the valve bore 20 in order to open or close the valve bore 20 against the riser pipe.
  • a shoulder 12 is formed with a bearing bore 13.
  • a pressure lever (not shown) is pivotally mounted, which engages the end of the valve tappet projecting from the valve bore 20.
  • valve tappet By depressing the pressure lever against the force of a spring, the valve tappet is depressed so that its valve cone clears the valve bore 20 so that it comes into contact with the riser pipe and thus the extinguishing agent container. If the pressure lever is released, the spring pushes the valve tappet into the closed position.
  • the pressure lever can be secured against unintentional actuation by means of a locking pin engaging in a fork 14 of the valve body 10.
  • a connecting piece 21 is integrally formed on the side of the valve body 10.
  • the connection piece 21 has a connection opening 22 which opens radially perpendicularly into the valve bore 20 above the valve seat.
  • the connecting piece 21 with the connection opening 22 is used to connect a nozzle through which the extinguishing agent is discharged from the container when the fire extinguisher is used.
  • the connecting piece 21 with the connection opening 22 serves when filling the container to fill nitrogen under pressure into the container.
  • a pressure gauge piece 30 is integrally formed on the valve body 10.
  • the pressure gauge connector 30 has a substantially cylindrical face that is open at the end Turn 31 on.
  • the recess 31 serves to receive a manometer, not shown.
  • an inner shoulder 32 is arranged on the bottom of the recess 31.
  • a membrane disc of the manometer is inserted into the recess 31 and is seated on the inner shoulder 32.
  • the membrane disk is preferably soldered into the pressure gauge socket 30.
  • the membrane disk actuates a pressure indicator via a gear, the gear and the pressure indicator being arranged in the space of the recess 31 in front of the membrane disk.
  • An undercut recess 33 in the recess 31 serves to receive a snap ring which secures the gear and the display of the pressure gauge in the recess 31.
  • a viewing window is pressed into the recess 31 in front of the snap ring in order to close the transmission and the display.
  • test socket 40 is formed on the side of the valve body 10 diametrically opposite the pressure gauge socket 30.
  • the test socket 40 has an external thread, by means of which an external pressure test device can be connected during the maintenance of the fire extinguisher. If necessary, a rupture disk device is also used in the test nozzle 40 as a pressure relief device.
  • a transverse bore 41 leads through the valve body 10 and opens into the bottom surface of the recess 31 of the pressure gauge socket 30.
  • the transverse bore 41 runs obliquely to the valve bore 20 in a plane perpendicular to the valve bore 20 and on the side of the valve bore opposite the connector 21 20.
  • a pressure bore 42 is formed in the valve body 10.
  • the pressure bore 42 opens at its upper end into the transverse bore 41, while its lower end opens at the area of the internal thread receiving the riser pipe.
  • the internal thread has an axially parallel notch which continues the pressure bore 42 in alignment.
  • the valve is screwed onto the container and the riser pipe into the internal thread of the valve body 10 screwed in, the pressure bore 42 is connected to the internal pressure space of the container via the notch of the internal thread.
  • the internal pressure of the container thus acts on the inside of the membrane disk of the pressure gauge 30 used in the pressure gauge socket 30 via the notch of the internal thread, the pressure bore 42 and the cross bore 41.
  • the internal pressure of the container is applied to the test connection 40 via the transverse bore 41 for a possible check and acts on the rupture disk safety device.
EP97101877A 1996-02-09 1997-02-06 Levier de pression avec soupape pour extincteur d'incendie sous pression permanente Expired - Lifetime EP0788815B2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE29602248U DE29602248U1 (de) 1996-02-09 1996-02-09 Druckhebel-Ventil für Dauerdruck-Feuerlöscher
DE29602248U 1996-02-09

Publications (4)

Publication Number Publication Date
EP0788815A2 true EP0788815A2 (fr) 1997-08-13
EP0788815A3 EP0788815A3 (fr) 1998-05-20
EP0788815B1 EP0788815B1 (fr) 2000-05-31
EP0788815B2 EP0788815B2 (fr) 2003-09-24

Family

ID=8019228

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97101877A Expired - Lifetime EP0788815B2 (fr) 1996-02-09 1997-02-06 Levier de pression avec soupape pour extincteur d'incendie sous pression permanente

Country Status (4)

Country Link
EP (1) EP0788815B2 (fr)
AT (1) ATE193458T1 (fr)
DE (2) DE29602248U1 (fr)
ES (1) ES2148850T5 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1181956A2 (fr) 2000-08-22 2002-02-27 SAE Antincendio S.n.c. Système d'accouplage d'un manomètre à la vanne de décharge pour extincteurs à haute pression

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2155318B1 (es) * 1998-02-05 2001-12-01 Salmeron Mercedes Gonzalez Cabezal para extintores.
ES2328772B1 (es) * 2007-07-25 2010-09-14 Aykan Xxi, S.L. Valvula polivalente para extintores de incendios.

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1406359A (en) † 1973-02-07 1975-09-17 Chubb Fire Security Ltd Fire extinghuishing apparatus
US4046156A (en) * 1975-12-04 1977-09-06 Systron-Donner Corporation Explosion discharge valve
EP0141563A2 (fr) * 1983-10-21 1985-05-15 Roger Carr Appareil extincteur à poudre
DE3733224A1 (de) † 1986-10-01 1988-04-14 Preussag Ag Bauwesen Handfeuerloescher
USD334826S (en) † 1991-07-18 1993-04-13 Mija Industries, Inc. Integral gauge and fire extinguisher valve housing

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RO108416B1 (ro) † 1993-04-01 1994-05-31 Neculai Stirbei Stingător presurizat

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1406359A (en) † 1973-02-07 1975-09-17 Chubb Fire Security Ltd Fire extinghuishing apparatus
US4046156A (en) * 1975-12-04 1977-09-06 Systron-Donner Corporation Explosion discharge valve
EP0141563A2 (fr) * 1983-10-21 1985-05-15 Roger Carr Appareil extincteur à poudre
DE3733224A1 (de) † 1986-10-01 1988-04-14 Preussag Ag Bauwesen Handfeuerloescher
USD334826S (en) † 1991-07-18 1993-04-13 Mija Industries, Inc. Integral gauge and fire extinguisher valve housing

Non-Patent Citations (5)

* Cited by examiner, † Cited by third party
Title
Accessori per serbatoi (G.P.L.) < 12/09/1988 †
CPF Accessori Antincendio < 12/09/1988 †
Dizionario d'ingegneria, p. 499, manovale, 1974 †
The MIJA Univalve von 1994 †
Valvola CPF 1974-1975 ohne Datum †

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1181956A2 (fr) 2000-08-22 2002-02-27 SAE Antincendio S.n.c. Système d'accouplage d'un manomètre à la vanne de décharge pour extincteurs à haute pression

Also Published As

Publication number Publication date
ES2148850T3 (es) 2000-10-16
EP0788815B2 (fr) 2003-09-24
DE29602248U1 (de) 1996-04-11
EP0788815A3 (fr) 1998-05-20
DE59701789D1 (de) 2000-07-06
EP0788815B1 (fr) 2000-05-31
ATE193458T1 (de) 2000-06-15
ES2148850T5 (es) 2004-06-16

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