FR2561931A1 - PORTABLE FIRE EXTINGUISHER THAT CAN BE ACTUATED AUTOMATICALLY AND MANUALLY - Google Patents

Abstract

THE INVENTION RELATES TO A PORTABLE FIRE EXTINGUISHER THAT CAN BE ACTIVATED AUTOMATICALLY AND MANUALLY. IN THIS APPARATUS INCLUDING A BODY 1 FOR CONNECTING A NOZZLE OR A DIFFUSER AND HAVING A LONGITUDINAL BORE 3 EQUIPPED WITH AN INLET 3 AND A UPSTREAM VALVE CHAMBER 20 WITH A VALVE SEAT 17, A CHAMBER 24 OF DEVIATION OF THE FLOW AND A BORE 25 FOR GUIDING THE VALVE TAPPET, A DIFFUSER 5 IS CONNECTED TO THE BORE 3 AT THE LEVEL OF THE INLET SECTION 3 OF THE BORE AND A BORE 27 DELIVERING A JET FROM THE SPACE 24 TO FILL OUT TO A NOZZLE 31, THE LONGITUDINAL AXES OF THE DIFFUSER 5 AND OF THE NOZZLE 21 BEING PERPENDICULAR BETWEEN THEM. APPLICATION ESPECIALLY TO FIRE EXTINGUISHERS FORMING SPRINKLING STRAINER AND SPRAYING NOZZLE FOR AN EXTINGUISHING JET.

Description

The invention relates to a fire extinguisher

  table, operable automatically and manually and having a container containing extinguishing agent and a connecting body of a nozzle or diffusers screwed onto the container, and containing a substantially central longitudinal bore and having a first section located on the inlet side, an upstream valve chamber connected in the direction of the extinguishing fluid to the

  first section, a valve seat, a deviation chamber,

  flow and a guide bore of the valve plunger. It is known to equip high pressure steel fire extinguisher containers for storage

  extinguishing agents in the form of gas and powder,

  connecting jaws allowing manual activation of the fire extinguisher. Likewise, fire extinguishers are known which have the following characteristics:

  D o u r 1 e m o n t th e broadcasters, with

  directly through a fire alarm.

  die, of a temperature difference warning device, of a

  fire detector, etc. However, there is a deficiency in this assortment of fire extinguishers in cases where an optimum use capacity of the fire extinguisher is desirable in the event of a fire. Such an apparatus should, on the one hand, reliably detect fires that have occurred without our noticing; and on the other hand can be brought closer to the home of

  fire, in order to allow an effective fight against

  when the latter declares himself. Whereas for the

  first mentioned, a fixed installation pre-

  feels a proper solution, a manual fire extinguisher is in

  the second case the best way to fight the fire.

  Therefore, the object of the present invention is to provide a portable fire extinguisher which can be actuated automatically and manually and is equipped on the one hand with a device that responds to alarm devices such as detectors for gases, smoke, temperature or direct release means, such as glass containers filled with liquid, and is further provided with a manually operated control valve serving to de-

  shut off any local extinguishing media.

  This problem is solved according to the invention by virtue of the fact that in the region of the first section of the

  longitudinal drilling, a diffuser is connected, essential

  perpendicularly to the longitudinal axis of the borehole, to the latter, that a drilling for a jet is derived from the

  zone of the flow deflection chamber, under the

  of a feed pipe leading to a spray nozzle of a jet, and that the longitudinal axis of the diffuser and the longitudinal axis of the nozzle for projecting a

  jet are essentially perpendicular to each other.

  According to another characteristic of the invention, a valve spring, pushing the valve tappet and the valve plate into the sealing position is arranged

  in the upstream chamber of the valve and the spring of

  pope is supported by a permanently housed support sleeve

  in the inlet section of the upstream chamber of the valve.

  According to another embodiment characteristic

  advantageously, the diffuser is provided with a triggering device

remotely.

  The extinguisher according to the invention makes it possible to

  a permanent control of a space or part of a

  such space, thanks to its installation in a de-

  completed, but also can be used to individually fight a fire by a person present at the time it fires. It goes without saying that such an extinguisher can be installed in the manner of a protective device

  fixed fire, and must be kept ready for operation.

  tion, but it must be able to be simultaneously removed from the place where it is, in the manner of a fire extinguisher

manual of the usual type.

  Other features and advantages of the pre-

  invention will emerge from the description given below.

  after making with reference to the accompanying drawing, which shows a fire extinguisher having a connecting body

  nozzle and diffuser, which can be mounted on a recess

  Usual dye intended to contain a extinguishing product in the form of a gas (Halon or CO 2), which is at a moist point, and whose constituent parts and operation

will be described below.

  The body 1 provided for the connection of a nozzle and

  of a diffuser and of the type provided with a connecting thread

  2 and which will hereinafter be referred to simply as the extinguishing head, is screwed through a not shown connecting sleeve or a tube of

  connection directly to a container containing a

  duit or extinguishing agent, also not shown. The head

  1 is equipped with a central hole 3 which

  multiple internal shoulders. Tapping of threads

  cable 4 provided for a conventional diffuser 5, which is here

  presented in the form of an automatic trigger nozzle 6, a remotely controllable trigger 7 and a protective basket 8, opens into the section 3 'of maximum diameter. In addition the connection drilling

  9 provided for an external pressure gauge 10 and the opening of

  pleating 11 open in this part 3 'of piercingo Il

  It should be noted here that the bore 9 for connecting the mano

  meter and the filling opening 11 may also be arranged in a position offset from the position shown with respect to the section 3 'of the bore. Similarly it should be noted that the diffuser 5 is shown in a horizontal position in the drawing plane only for representation purposes, while in practice it is perpendicular to the drawing plane for operational reasons. We will come back to this later

state of affairs.

  The extinguishing head 1 also contains a disc

  positive valve which can be actuated by means of a knob

  upper die 11 of a device 12,13 manual trigger, and which is constituted by a valve tappet 15 provided with a valve plate 16 and a valve spring 18. The latter is supported by means of a support sleeve 19 in an upstream chamber 20 of the valve being centered at its outer end on an end stud

  21 below the valve plate 16, and pushes back the

  valve 16 against the valve seat 17. The supply line 22 'of a pressure relief valve 22 of the type

  known, opens into the upstream chamber 20 of the valve. The pus-

  Valve 15 comprises, above the valve plate 16, a guide pin 23 which passes first, above

  of the valve seat 17, a chamber 24 of deflection of the

  flow and is then guided in a sealed manner (seal

  22), in the upper part of the extinguishing head

  1, in a bore 25 of the valve pusher, which is

  essentially coaxial with central drilling 3.

  A bore 27 provided for a jet, which is arranged in a centered position in a screwdriver bit 28 formed by forming on the extinguishing head 1, opens out essentially perpendicular to the axis of the guide pin 23, in the flow deflection chamber 24. The tube

  projection of a jet is mounted on this screwdriver

  by means of a screw cap 29, the neck of a nozzle 31

  used to project a jet that can be produced under the

  me of a connecting member between the screw cap 29 and

the jet emission tube 30.

  During manual operation of the fire extinguisher

  according to the invention, in the event of a fire being triggered, the fire extinguisher is removed in known manner from its support, after the connector 32 has been removed from a socket (not shown), and it is brought closer as far as possible. from the focus of the fire. To achieve extinction, we

  press the top trigger handle against the

  In this case, the valve pusher 15 is pushed downward, overcoming the force of the spring 18, until it abuts against the adjusting ring 33. The valve plate 16 then

  valve seat 17 and the extinguishing agent circulates in

  Through the central bore 3, the calibration ring 34 located in the support sleeve 19, enters the flow deflection chamber 24 and exits through the bore.

  27 ejection of a jet and the nozzle 31 jet projection.

  In its ready-to-operate state, the fire extinguisher according to the invention is mounted in such a way

  that the diffuser 5 is turned towards the space to be protected.

  As already mentioned, in the case of a head of ex-

  tion 1 adapted to practice, the thread 4 of

  of the diffuser is arranged by being shifted by about 90 relative to the screwdriver tip 28 of the spray tube of a jet, so that the jet of extinguishing product exiting by

  the diffuser can spread without being disturbed. In order to simplify

  take control of the pressure, the pressure gauge 10 or its

  Connection piercing 9 may also be disposed above the location shown, i.e. in the area of the upstream chamber 20 of the valve or above the diffuser 5, outside the zone. of the protective basket (in the case

  o the lower part of the extinguishing head is extended).

Claims (3)

  1. Portable fire extinguisher, which can be operated automatically and manually and comprising a container containing the extinguishing agent and a body (1) for connecting a nozzle or a diffuser, screwed on   the container, and containing a longitudinal bore (3) substantially   essentially central with a first section (3 ')   on the intake side, an upstream chamber (20) of   connected in the direction from the extinguishing fluid to the first section (3 '), a valve seat (17), a flow deflection chamber (24) and a guide bore (25) of the valve plunger, characterized in that in the region of the first section (3 ') of the piercing   longitudinal axis (3), a diffuser (5) is connected, essentially   perpendicular to the longitudinal axis of the bore (3),   to the latter, that a piercing (27) for a jet is derived from   firing from the zone of the flow deflection chamber (24)   in the form of a feed line leading to   to a nozzle (31) for projecting a jet, and that the longitudinal axis   tudinal of the diffuser (5) and the longitudinal axis of the nozzle (31)   used for projecting a jet are essentially pendicular to each other.   2. Fire extinguisher according to claim 1, characterized in that a valve spring (18), displacing the valve plunger (15) and the valve plate (16) in the sealing position, is arranged in the chamber uphill   (20) of the valve and that the valve spring (18) is   held by a support sleeve (19) housed permanently in the   inlet section of the upstream chamber (20) of the valve.   3. Fire extinguisher according to one of the   1 or 2, characterized in that the diffuser (5) is   equipped with a remote triggering device (7).