EP0953367B1 - Permanently presurized manual fire extinguisher - Google Patents

Description

The invention relates to a Dauerdruckhandfeuerlöscher, in which extinguishing agent and propellant are located in a common container and which has a device for manual operation, wherein a riser for conveying the extinguishing agent inside the container of the device for manual actuation approximately to the bottom of the container a permanent handheld fire extinguisher in which extinguishing agent and propellant are located in a common container and having a means for manual operation, wherein a first riser for conveying the extinguishing agent inside the container of the device for manual actuation approximately to the bottom of the container is sufficient, wherein the permanent pressure hand extinguisher has a means that releases the extinguishing agent when exposed to heat, that the means for the automatic release of the extinguishing agent is a sprinkler head or a valve with a fuse, in that the manual operation device is a manual valve having a spray head and a handle combined with an operating lever.

Hand fire extinguishers are portable fire extinguishers that are filled with different extinguishing agents, such as water, foam, powder or carbon dioxide and are primarily suitable for combating small and Genesis fires. Basically, a distinction is made between two types of hand fire extinguishers.

Continuous pressure fire extinguishers are fire extinguishers in which extinguishing agent and propellant are located in a common container, which is under pressure by the propellant. Due to the overpressure or the blowing agent, the extinguishing agent is pressed out upon actuation of a hand lever fitting.

In a Aufladehandfeuerlöscher the propellant is separated from the extinguishing agent. The propellant is for this purpose either in a gas cartridge inside the fire extinguisher or in a gas bottle, which is attached to the fire extinguisher or the extinguishing agent container, located. The arranged in the extinguishing agent container gas cartridge is opened from the outside by a knock button or a lever mechanism upon actuation of the hand lever fitting, so that the propellant can drive out the extinguishing agent. If the propellant bottle is arranged on the outside, then this is connected via a connecting tube with the interior of the extinguishing agent container. By opening the gas cylinder by means of a valve or by pressing a knock button, the gas escapes into the extinguishing container and generates there drivable overpressure.

Disadvantageously, hand-held fire extinguishers are only manually operated, so that they burned useless at their sites in fires in which no people were present.

Furthermore, automatic fire extinguishing systems, such as sprinkler systems u. Like. Known, however, cause fire in emergence fires that can be extinguished by people on site, greater damage.

From the U.S. Patent 4,098,343 a fire extinguisher of the type mentioned is known in which the valve for automatic release of the extinguishing agent is fixed to a conventional pressure gauge port of the Dauerdruckhandfeuerlöschers, which is in communication with the first riser.

The GB 15 56 217 shows a hand fire extinguisher, which is equipped on one side with a manual operation and on its opposite side has a valve for the automatic release of the extinguishing agent.

From the GB 2 156 213 a continuous pressure fire extinguisher is known in which a T-shaped adapter is arranged between the container and the manual fitting, wherein a spray head is connected to the adapter.

It is therefore an object of the invention to improve generic Dauerdruckhandfeuerlöscher such that an erase process can be initiated automatically smoothly.

This object is achieved in that the sprinkler head or the valve in the interior of the container has a further riser, which extends approximately to the bottom of the container and that the sprinkler head or the valve is arranged on the wall of the container with connection to the interior, or that a preferred T-shaped adapter between the container and the manual fitting is arranged, to which the sprinkler head or the valve is connected, wherein the adapter is pushed with its one end completely over the riser of the hand lever fitting, so that a further riser through the Adapter is formed, through which the extinguishing agent is supplied to the sprinkler head or the valve.

It is intended to provide a permanent pressure hand fire extinguisher, which has means that automatically release the extinguishing agent at high heat or direct flame contact.

As a means of triggering the automatic extinguishing operation Sprinkler heads or other fuse-secured valves that are in communication with the pressurized interior of the permanent pressure hand extinguisher with the extinguishing and blowing agent are suitable.

The agent can be mounted in any height of the container of the permanent pressure hand fire extinguisher, provided that it is ensured that an internally connected riser is led to the bottom of the container to record there the standing under propellant pressure extinguishing agent for spraying.

Also usual Dauerdruckhandfeuerlöscher can be retrofitted according to the invention. For this purpose, a T-shaped adapter is arranged between the hand lever fitting and the container having a means that automatically releases the extinguishing agent when exposed to heat or flame. In a preferred embodiment, the adapter is additionally pushed over the full length of the riser, so that two telescoping risers result. This embodiment has the advantage that conventional continuous pressure handheld fire extinguishers can be retrofitted by installing an adapter.

It is also possible to retrofit conventional continuous pressure hand extinguishers without further modifications only by replacing the pressure gauge against a corresponding means. For some types of fire extinguishers, the previous, only the propellant leading to the pressure gauge opening must be sealed. In order to achieve a possibly stronger output, the inner remaining bore can expand to overpressure.

Only with the conversion or retrofitting of conventional permanent pressure hand extinguishers at the manometer connection no installation of a manometer is possible. Otherwise, pressure gauges can be used without problems.

By the invention it is advantageously ensured that Dauerdruckhandfeuerlöscher in a fire in which no people are present, not only useless ausglühen to their point of view, but at least dwell in their environment, with manual operation is of course also possible, even if the device previously triggered by its automatic, as far as extinguishing agents are still in the container.

Fig. 1 bis 8

in geschnittenen bzw. teilgeschnittenen Seitenansichten erfindungsgemäße Dauerdruckhandfeuerlöscher in verschiedenen Ausführungsformen.

The invention will be explained in more detail with reference to drawings. It show in a purely schematic representation

Fig. 1 to 8

in cut or partially sectioned side views permanent pressure handheld fire extinguisher according to the invention in various embodiments.

The Dauerdruckhandfeuerlöscher 100 - 800 have a container 10 which is filled with a blowing agent 11 and an extinguishing agent 12. For manual operation, the container 10 has a hand lever armature 13 which has a spray head 14 and a handle 15 which is combined with an operating lever 16. The hand lever fitting 13 has a riser 17 which extends approximately to the bottom 18 of the container 10 and through which the extinguishing agent 12 is expelled. Below the hand lever fitting 13, a pressure gauge connection 13 a is indicated, in which a pressure gauge, not shown, can be screwed.

The Fig. 1 and 2 show a Dauerdruckhandfeuerlöscher 100, 200, which has a sprinkler head 19 and a valve 20 with a fuse (fire trace), or which is in each case arranged in the region 21 of the wall 22 of the container 10 in which usually the propellant 11 is located , The sprinkler head 19 and the valve 20 also have a riser 23, which extends approximately to the bottom 18 of the container 10 and through which the extinguishing agent 12 is conveyed in an automatic extinguishing process.

The continuous pressure handheld fire extinguishers 300, 400, 500, 600 described in the following Fig. 3-6 are not embodiments covered by the protection and serve to explain the subject invention.

In the permanent pressure hand fire extinguishers 300, 400 according to the 3 and 4 For example, the sprinkler head 19 or the valve 20 is arranged in the region 24 of the bottom 18 of the container 10, so that the extinguishing agent 12 can be driven out without a riser in an automatic release.

The permanent pressure hand extinguishers 500, 600 of FIGS. 5 and 6 usually have a manometer, which is connected by the wall 22 of the hand lever armature 13 with the riser 17 and which is replaced here by the sprinkler head 19 and the valve 20. The extinguishing agent 12 is therefore guided via the riser 17, which leads to the hand lever armature 13, also to the sprinkler head 19 and the valve 20.

Another way conventional permanent pressure hand fire extinguishers 700, 800 retrofit according to the invention is in the FIGS. 7 and 8 shown. For this purpose, a preferably T-shaped adapter 25 between the container 10 and the hand lever fitting 13 is arranged, to which a sprinkler head 19 or a valve 20 is connected and wherein the adapter 25 extends into the container 10 and with its one end 26 completely over the riser 17 of the hand lever armature 13 is pushed, so that a second Rising pipe 27 is formed by the adapter 25, through which the extinguishing agent 12 to the sprinkler head 19 and the valve 20 is supplied.

LIST OF REFERENCE NUMBERS

Continuous pressure portable fire extinguisher 100, 200, 300, 400, 500, 600, 700, 800 container 10 propellant 11 extinguishing Media 12 Hand lever faucet 13 Manometer connection 13a spray nozzle 14 handle 15 actuating lever 16 riser 17 ground 18 sprinkler head 19 Valve 20 Area 21 wall 22 riser 23 Area 24 adapter 25 The End 26 riser 27

Claims (1)

1. A constant pressure manual fire extinguisher (100, 200, 700, 800) in which the extinguishing agent (12) and foaming agent (11) are located in a shared container (10), and which has a device (13) for manual activation, wherein a first uptake tube (17) for conveying the extinguishing agent (12) extends inside the container (10) of the device for manual activation almost down to the floor (18) of the container (10), wherein

   - the constant pressure manual fire extinguisher (100, 200, 700, 800) has an appliance which releases the extinguishing agent (12) when exposed to heat, and the appliance for automatically releasing the extinguishing agent (12) is a sprinkler head (19) or a valve (20) with a safety fuse, and the device for manual activation is a manual armature (13) which comprises a spray head (14) and a handle (15) which is combined with an activation lever (16), characterized in that

   - the sprinkler head (19) or the valve (20) inside the container (10) comprises a further uptake tube (23) which reaches almost to the floor (18) of the container (10), and the sprinkler head (19) or valve (20) on the wall (22) of the container (10) is arranged with a connection to the inside area, or

   - that an adapter (25), which in a preferred manner is T-shaped, is arranged between the container (10) and the manual armature (13), to which the sprinkler head (19) or the valve (20) is connected, wherein the adapter (25) is pushed with its end (26) fully over the uptake tube (17) of the manual lever armature (13), so that a further uptake tube (27) is formed by the adapter (25), through which the extinguishing agent (12) is conveyed to the sprinkler head (19) or to the valve (20).

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