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WO1992006743A1 - Extincteur - Google Patents

Extincteur Download PDF

Info

Publication number
WO1992006743A1
WO1992006743A1 PCT/DE1991/000808 DE9100808W WO9206743A1 WO 1992006743 A1 WO1992006743 A1 WO 1992006743A1 DE 9100808 W DE9100808 W DE 9100808W WO 9206743 A1 WO9206743 A1 WO 9206743A1
Authority
WO
WIPO (PCT)
Prior art keywords
fire extinguisher
extinguishing
pressure
low
extinguisher according
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.)
Ceased
Application number
PCT/DE1991/000808
Other languages
German (de)
English (en)
Inventor
Gabor Lengyel
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of WO1992006743A1 publication Critical patent/WO1992006743A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • A62C13/66—Portable extinguishers which are permanently pressurised or pressurised immediately before use with extinguishing material and pressure gas being stored in separate containers
    • A62C13/70—Portable extinguishers which are permanently pressurised or pressurised immediately before use with extinguishing material and pressure gas being stored in separate containers characterised by means for releasing the pressure gas

Definitions

  • the invention is based on a fire extinguisher according to the preamble of the main claim.
  • a pressure cartridge is installed inside the container which contains the extinguishing agent and is filled with carbon dioxide or a comparable propellant under high pressure.
  • a sealing disk which closes the mouth of the print cartridge is pierced by a mandrel.
  • the carbon dioxide quickly escapes into the extinguishing agent container.
  • the pressure of the propellant then drops to a value of approximately 15 bar, which is sufficient to expel the extinguishing agent when the extinguishing valve is opened.
  • the propellant gas escapes through the punctured sealing washer from the mouth of the print cartridge, where it reaches the pressure pipe via a channel, which projects down to the bottom into the extinguishing agent container and allows the gas to escape into the container chamber through a few holes.
  • the extinguishing agent is whirled up and penetrated by the gas, so that it is conveyed, as it were, floating in the propellant gas (with pneumatic support) via the riser pipe, the opening of which is located near the bottom of the container, up to the container closure.
  • a closing valve comes into play immediately, which releases the jet of extinguishing agent when opened, or first an extinguishing hose, at the end of which there is only the closing valve for jet regulation.
  • the mandrel for triggering the print cartridge is actuated by means of a striking button or a lever.
  • the spike is protected against unauthorized or unintentional actuation by a safety device that consists of a mechanical lock on the impact button or lever.
  • This fuse is, on the other hand, secured with a sealed wire to check the integrity and readiness of the device to be extinguished.
  • the extinguishing hose is connected to the pressure chamber of the low-pressure container via a connecting piece which can be pivoted between two end positions and which is present on the low-pressure container, and a lever is provided on the connecting piece, which lever pivots from its rest position into its resting position when the connecting piece is pivoted Working position depresses the bumper directly or indirectly.
  • the low-pressure container has the shape of a cylinder of circular cross-section, the two cylinder openings of which are closed by dome-shaped end pieces, one of which has a container opening for the passage of the extinguishing agent and for receiving the release device, and the pivot axis of the connection piece runs perpendicular to the cylinder longitudinal axis.
  • the fire hose In known fire extinguishers, the fire hose is mostly attached to the upper or lower end piece of the pressure medium container and runs along the lateral surface of the cylinder to the opposite end of the fire extinguisher.
  • the free hose end which is usually located in a holder, is picked up and pointed away from the fire extinguisher at the source of the fire. According to this embodiment, this swiveling movement of the extinguishing hose leads to the actuation of the bumper.
  • the connecting piece is connected to the low-pressure container via extinguishing agent lines which are guided through the container opening, and the longitudinal axis of the connecting piece extends perpendicular to the longitudinal axis of the cylinder in its rest position and, in its working position, closes an angle ⁇ of preferably 15 ° to 75 ° with the longitudinal axis of the cylinder on.
  • This has the advantage that the connecting piece runs in the normally given spray direction, so that no bending moments act on the extinguishing hose in the working position.
  • An angle ß of 45 ° has been found to be particularly suitable.
  • the bumper is held in its rest position above the sealing disk by a return spring
  • the lever actuating the bumper is designed as an eccentric lever which allows the bumper to return to its initial position after the sealing disk has been pierced, and is the eccentric ⁇ lever blocked by the bumper returned to its original position.
  • a releasable securing device is present which prevents the extinguishing hose from pivoting from its rest position into the working position. This prevents the fire extinguisher from being triggered unintentionally.
  • the edge of the container opening in the upper, dome-shaped end piece of the low-pressure container referred to as the dome, is drawn inwards into the low-pressure container, a threaded ring with an internal thread is inserted into this container opening, and a union nut can be screwed into the internal thread, with which the fittings on the dome are attachable.
  • the container opening in the dome is arranged off-center.
  • the normal to the opening area of the container opening with the longitudinal central axis of the low-pressure container preferably encloses an angle between 10 and 30 °.
  • the off-center arrangement of the container opening and the fittings arranged therein has the advantage that the space above the The middle of the cathedral is free and a handle can be arranged there. This arrangement of the handle allows the fire extinguisher to be held vertically without torque.
  • the double pipe consisting of pressure pipe and riser pipe for conveying the extinguishing agent from the low-pressure container can either be guided diagonally from the container opening to the container bottom or parallel to the cylinder jacket surface of the low-pressure valve.
  • the first embodiment has the advantage that the fittings and the double pipe are easy to assemble, while the second embodiment has the advantage that the low-pressure container is completely emptied even when the fire extinguisher is held at an angle.
  • a base is provided at the end of the low-pressure container opposite the container opening. This advantageously serves to turn off the fire extinguisher, which is important in particular in the case of large fire extinguishers, since these can be of considerable weight and quickly weary of wearing the fire extinguisher when the fire extinguishing operation is prolonged.
  • a holder for the extinguishing hose is provided on the outside of the low-pressure container.
  • This configuration has the advantage that the extinguishing hose, particularly when the fire extinguisher is being transported to the fire site, is securely fixed and cannot get caught, for example on the user's clothing.
  • the holder has a snap lock. This ensures quick and easy loosening of the extinguishing hose in the case of use and secure mounting in the case of standby.
  • the holder and base can be designed as one part in order to keep the manufacturing costs low.
  • a releasable securing device is present on the holder, which prevents the extinguishing hose from being removed from the holder.
  • This fuse can serve as a safeguard against unintentional starting of the fire extinguisher instead of an existing fuse on the extinguishing pistol or the pivotable connecting piece.
  • a U-profile is provided on the outside of the low-pressure container as a receptacle for the extinguishing hose.
  • This U-profile serves as protection • of the fire hose against damage, in particular when the fire extinguisher is being transported to the location of the fire, and, according to an advantageous further development of these features, is made of stable material.
  • the U-profile can advantageously be used simultaneously as a handle for the fire extinguisher. A separate component is saved and, at the same time, a long handle, which does not increase the size of the fire extinguisher, is made possible.
  • the handle can be designed so that both-handed carrying of the fire extinguisher - on the way to the fire site - is possible, as well as that at _ g _
  • a certain orientation of the fire extinguisher is preferred with one-handed wearing of the fire extinguisher. It can thus be ensured, for example, that when the fire extinguisher is carried with one hand, it is automatically held in a vertical or slightly inclined orientation to the vertical. This ensures that the low-pressure container is always completely emptied.
  • an extinguishing gun at the outlet end of the extinguishing hose with a handle, a pressure lever, an outlet nozzle and a closing valve which can be actuated by the pressure lever and blocks the flow through the extinguishing gun, and is between the pressure lever and the closing valve have a deflection lever which acts on the closing valve in the opening direction and converts the pivoting movement of the pressure lever into an axial movement of the valve member of the closing valve.
  • the pressure lever and the closing valve By converting the pivoting movement of the pressure lever into an axial movement of the valve member by means of a deflection lever, it is possible to provide the pressure lever and the closing valve at the same height relative to the direction of discharge of the extinguishing agent.
  • This has the advantage that when the pressure lever is actuated, the hand can be supported on the extinguishing gun and not on the extinguishing hose, which would lead to the same being impaired.
  • the possible hose length is also advantageously increased.
  • the extinguishing gun is an advantageous development of these features arranged as close as possible to the end of the hose.
  • the increased length of the fire hose advantageously leads to greater freedom of movement when operating the fire extinguisher, which is important when the fire is being used.
  • the handle of the extinguishing gun is provided with a corrugation, preferably in the form of flutes or grooves that extend obliquely to the longitudinal axis of the extinguishing gun.
  • This configuration advantageously increases the security of grip of the extinguishing pistol. This is particularly important because the extinguishing agent can reduce the friction of the material of the extinguishing gun.
  • VA embodiment of the object of the invention is shown in the drawing and is described in more detail below. Show it:
  • FIG. 1 is a side view of a fire extinguisher according to the invention in a schematic representation
  • FIG. 3 shows a section through the upper end of a fire extinguisher according to the invention along line III-III in FIG. 2
  • 4 shows a section through the head of a fire extinguisher according to the invention along line IV-IV in FIG. 3
  • Fig. 6 shows a longitudinal section through this fire gun.
  • the fire extinguisher shown in FIG. 1 has a low-pressure container 10 in the form of a circular cylinder with dome-shaped end pieces 10A and 10B, on the lower end piece 10B of which a base 52 is arranged.
  • a bracket 53 is molded onto the base 52 for receiving an extinguishing gun 70 provided on an extinguishing hose 60, which is anchored in the bracket 53 via snap locks 52A and 52B.
  • the end of the extinguishing hose 60 facing away from the extinguishing gun 70 is connected via a connecting piece 60A (FIG. 3) to the fittings present on the top of the fire extinguisher. These are covered by a panel 50.
  • the extinguishing hose 60 is mounted in a U-profile 51 which extends between the covering 50 and the holder 53 and which half encompasses the extinguishing hose 60.
  • a pressure cartridge 20 receiving the propellant and a double tube 22 for conveying the propellant or the extinguishing agent.
  • 3 shows the design of the fittings arranged in the dome 10A of the fire extinguisher.
  • the connecting piece 60A for the extinguishing hose 60 has a flow channel which is connected to the low-pressure container 10 via extinguishing agent lines 23 and 24 and the riser pipe 22A of the double pipe 22.
  • connection piece 60A can be pivoted about an axis 41 perpendicular to the longitudinal axis of the low-pressure container 10 between a rest position A and a working position B, in which the longitudinal axis of the connection piece 60A encloses an angle ⁇ with the longitudinal axis of the low-pressure container 10.
  • An eccentric lever 42A is arranged on the connecting stub 60A and, when the connecting stub 60A is pivoted, actuates a bell crank 33 which, with its other end, depresses a bumper 36 held in its rest position by a return spring 37.
  • the bumper 36 has a release mandrel which, when the bumper 36 is pressed down, pierces a sealing disk 21 present on the pressure cartridge 20, so that the propellant gas escapes via the pressure tube 22B of the double tube 22 into the low-pressure container 10, where it passes through the extinguishing agent and loosened up. The fire extinguisher is now ready to be extinguished.
  • the eccentric lever 42A After actuation of the deflection lever 33, the eccentric lever 42A releases the deflection lever 33 so that it is turned back by the bumper 36 returning to its starting position due to the return spring 37. In this position, the deflection lever 33 locks the eccentric lever 42A against turning back into its starting position. All the actuating devices present on the dome 10A of the fire extinguisher are secured by means of a union nut 32, which can be screwed into the internal thread 13A of a threaded ring 13, which threaded ring 13 is in turn fixed in a container opening 12 drawn into the dome 10A of the fire extinguisher.
  • the connecting piece 60A runs approximately perpendicular to the longitudinal axis of the low-pressure container 10, while the angle ⁇ in the working position is 15 to 75 °, preferably 45 °.
  • the pressure cartridge 20 and the double tube 22 with riser tube 22A and pressure tube 22B run diagonally from the eccentric in the illustrated example in the cathedral arranged fittings to the opposite E: 3e of the low-pressure container 10.
  • the riser pipe 22A thereby ends in the region of the low point of the lower end piece 10B of the low-pressure container 10, so that complete emptying of the low-pressure container 10 is ensured.
  • the U-profile 51, the cladding 50 and the base 52 with a molded-on holder 53 can be designed as plastic injection molded parts, preferably in one piece.
  • the extinguishing gun 70 is preferably snapped into the holder 53 such that the pressure lever 77 points to the low-pressure container 10 and is covered by the holder 53.
  • the extinguishing gun 70 is snapped into the holder 53 by means of a snap connection 52A and 52B. By snapping the extinguishing hose 60 is automatically drawn into the U-profile 51.
  • the design of the extinguishing gun 70 is shown in FIGS. 5 and 6.
  • the free end 60B of the extinguishing hose 60 is arranged on a connection piece 75 provided on the extinguishing gun 70, which connects the extinguishing agent channel of the extinguishing hose 60 to a flow channel 61K in the extinguishing gun 70.
  • the flow channel 71K can be closed by a closing valve 80, which sits with its valve head 80A on a valve seat 73A present in the flow channel 71K.
  • a bellcrank 78 engages in the axial direction, which in turn is actuated by a pressure lever 77.
  • the pivoting movement of the pressure lever 77 is converted into an axial movement of the valve member of the closing valve 80.
  • a compression spring 79 in the form of a torsion spring acts on the end 80B of the valve member facing away from the valve head 80A in the closing direction thereof.
  • the closed position of the closing valve 80 can be adjusted via an adjusting nut 82.
  • the extinguishing gun 70 has a handle 71, which is provided on its outward-facing side with grooves 71R which run obliquely to the direction of exit of the extinguishing agent.
  • the connecting piece 75 is pulled into the handle 71 so that it is covered by the rear handle part "1A.
  • an outlet nozzle 72 is provided which specifies the shape of the extinguishing jet. From the outlet nozzle 72 a valve fitting sleeve 73A having valve seat 73A is pressed and anchored against a sealing ring which is supported on an inner collar of the flow channel 71K.
  • a recess 71C is provided for mounting the closing valve 80, which takes place at an angle of 15 to 30 ° through the front handle end 71B.

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)

Abstract

Un extincteur comprend un réservoir sous basse pression (10) contenant l'agent d'extinction et un réservoir (20) de gaz propulseur sous haute pression agencé dans le réservoir sous basse pression (10), qui débouche dans le réservoir sous basse pression (10) par un orifice fermé par une rondelle d'étanchéité (21). Un dispositif de déclenchement provoque le perçage de la rondelle d'étanchéité (21) au moyen d'un poussoir (36) qui s'enfonce. En conséquence, l'agent d'extinction s'écoule dans le réservoir sous basse pression (10) et génère une pression suffisante pour expulser l'agent d'extinction par un tuyau extincteur (60) fermable par une soupape (80) et pivotant entre une position de repos (A) et une position de travail (B). Afin de simplifier la manipulation de l'extincteur, le poussoir (36) est enfoncé et la rondelle d'étanchéité (21) est percée lorsque l'on fait pivoter le tuyau extincteur (60) jusqu'à sa position de travail (B).
PCT/DE1991/000808 1990-10-13 1991-10-14 Extincteur Ceased WO1992006743A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEP4032542.3 1990-10-13
DE4032542 1990-10-13

Publications (1)

Publication Number Publication Date
WO1992006743A1 true WO1992006743A1 (fr) 1992-04-30

Family

ID=6416225

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE1991/000808 Ceased WO1992006743A1 (fr) 1990-10-13 1991-10-14 Extincteur

Country Status (2)

Country Link
AU (1) AU8715391A (fr)
WO (1) WO1992006743A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2741811A1 (fr) * 1995-12-05 1997-06-06 Snc S2E Services Appareil extincteur et berceau pour la fixation de cet appareil, lorsqu'il est portable, a un support
EP1044704A1 (fr) 1999-04-15 2000-10-18 HTM Sport- und Freizeitgeräte Gesellschaft m.b.H. Extincteur d'incendie
RU2159137C2 (ru) * 1996-10-02 2000-11-20 Лещев Андрей Юрьевич Запорно-пусковая головка для порошкового огнетушителя

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR684377A (fr) * 1929-11-05 1930-06-25 Perfectionnements aux extincteurs d'incendie
CH231998A (de) * 1943-04-30 1944-04-30 Tech Neuheiten Ag F Feuerlöschapparat.
US2409647A (en) * 1944-12-06 1946-10-22 Specialties Dev Corp Discharge device
FR1207332A (fr) * 1957-11-14 1960-02-16 Specialties Dev Corp Moyen de contrôle de l'évacuation d'un milieu fluide sous pression

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR684377A (fr) * 1929-11-05 1930-06-25 Perfectionnements aux extincteurs d'incendie
CH231998A (de) * 1943-04-30 1944-04-30 Tech Neuheiten Ag F Feuerlöschapparat.
US2409647A (en) * 1944-12-06 1946-10-22 Specialties Dev Corp Discharge device
FR1207332A (fr) * 1957-11-14 1960-02-16 Specialties Dev Corp Moyen de contrôle de l'évacuation d'un milieu fluide sous pression

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2741811A1 (fr) * 1995-12-05 1997-06-06 Snc S2E Services Appareil extincteur et berceau pour la fixation de cet appareil, lorsqu'il est portable, a un support
EP0778052A1 (fr) * 1995-12-05 1997-06-11 SNC S2E Services Appareil extincteur et berceau pour la fixation de cet appareil à un support
US5816331A (en) * 1995-12-05 1998-10-06 Snc S2E Services Fire extinguisher and harness for fixing this extinguisher, when portable, to a support
RU2159137C2 (ru) * 1996-10-02 2000-11-20 Лещев Андрей Юрьевич Запорно-пусковая головка для порошкового огнетушителя
EP1044704A1 (fr) 1999-04-15 2000-10-18 HTM Sport- und Freizeitgeräte Gesellschaft m.b.H. Extincteur d'incendie

Also Published As

Publication number Publication date
AU8715391A (en) 1992-05-20

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