RU83925U1 - DEVICE FOR AUTOMATIC STARTING OF A MANUAL FIRE EXTINGUISHER - Google Patents

Abstract

1. A device for automatically starting a manual fire extinguisher, comprising a housing and a starting initiation unit for a manual fire extinguisher located in the housing, characterized in that the initiation unit consists of a pyrotechnic pusher with a working rod and a latch with a spring and is configured to axially contact the working rod of the pusher and the head rod a fire extinguisher, a rod of a pusher and a clamp with a spring are structurally combined in the housing perpendicular to each other, the clamp is fixed at one end to a wall inside the housing and is made with the possibility of translational movement and fixing the position of the operating rod of the pusher. ! 2. The device according to claim 1, characterized in that the pyrotechnic pusher in the housing is fully or partially placed. ! 3. The device according to claim 1, characterized in that the spring clip is made in the form of a rod with a threaded fastening in the wall of the housing. ! 4. The device according to claim 1, characterized in that the housing is configured to be mounted on the handle of a fire extinguisher or on its head. ! 5. The device according to claim 1, characterized in that the pyrotechnic pusher is made with the possibility of providing electrical contact with the electrical start node in manual mode or with a self-starting device, or as part of a fire extinguishing system. ! 6. The device according to claim 1, characterized in that the fixation of the position provide a spline connection of the latch and the groove made on the rod of the pusher. ! 7. The device according to claim 1, characterized in that the groove is made in the form of a groove around the perimeter of the pusher rod.

Description

The proposed device relates to reusable fire fighting equipment, namely, to the design of a device for automatically starting manual fire extinguishing means, created on the basis of various types of hand-held fire extinguishers: injection, carbon dioxide, gas and can be used at industrial and domestic facilities.

A known fire extinguisher (RF patent No. 2175876, class A62C 13 \ 00, 35 \ 00, publ. 2001) The description shows a manual fire extinguisher, the outlet head of which is equipped with an additional outlet, closed by a thermal lock, made in the form of a glass flask. A fire extinguisher can be started by the operator manually or automatically. To do this, it must be placed in advance in the zone of possible ignition and in case of fire, the glass bulb is destroyed, and the extinguishing agent is fed into the combustion zone.

A useful model is known “Launch device of a portable fire extinguisher” (RF patent No. 44259, class A62C 35 \ 00, publ. 2005). The known device also relates to classes of manual fire extinguishers, but additionally having a response function. To implement the self-fulfilling function, it is proposed to install on the handle of a manual fire extinguisher a special device equipped with a thermal lock. The handle is an easily removable mechanism, which generally greatly simplifies the entire structure, but as in the previous invention, the fire extinguisher needs to be placed only at the place of possible sunbathing, which in many cases is a random factor.

The high inertia of known fire extinguishers often does not make it possible to extinguish a fire in its initial stage, which indicates the low efficiency of the technical solutions described above.

The well-known "Fire extinguisher" (RF patent No. 2291729, class A62C 13 \ 00, 35 \ 00, publ. 2007), the description of the invention of which indicates that as a sensitive element of the thermal, fire detector use a thermal lock equipped with a removable protective casing-housing with a certain internal size relative to the size of the thermal lock. This device works both in manual and automatic mode. The disadvantages of the known device include the need for removal (screwing) of the protective housing of the thermal lock, which performs the function of initiating the start (operation) of the manual fire extinguisher in automatic mode and, like all manual fire extinguishers, must be placed in the fire zone.

In terms of the set of essential features and the technical result achieved, the closest technical solution to the proposed invention is the invention according to patent No. 2291729, which is selected as a prototype.

The task to which the proposed utility model is directed is to develop a device for automatically starting a manual fire extinguisher with the ability to connect it to both existing fire alarm systems and autonomous fire detection tools, while it is possible to place it outside the fire zone.

The proposed device due to the combination of its essential features ensures when using the achievement of the following technical result:

- the case of the automatic start-up device can be placed either anywhere on the handle of a manual fire extinguisher, or directly on the head of a manual fire extinguisher;

- It can be connected to any existing devices for detecting dangerous fire factors and can be triggered when an electrical signal is applied;

- as a manual fire extinguisher can be used any manual pump type fire extinguisher, carbon dioxide fire extinguisher, gas fire extinguisher;

- can be placed outside the protected premises, while the extinguishing agent can be supplied both through a special pipe, which is additionally supplied with a fire extinguisher, and through a regular sleeve, which is part of the design of a manual fire extinguisher.

The specified technical result is achieved in that the device for automatically starting a manual fire extinguisher, including a housing and a trigger unit for starting a manual fire extinguisher, located in the housing, characterized in that the initiation unit consists of a pyrotechnic pusher with a working rod and a latch with a spring and is made with the possibility of axial contact of the worker the rod of the pusher and the rod of the head of the fire extinguisher, the rod of the pusher and the clamp with the spring are structurally integrated in the housing perpendicular to each other, the clamp is one Tzom fixed to the inside wall of the housing and is capable of translational movement and fixation position switching operating rod pusher.

The pyrotechnic pusher in the case is partially placed, and for ensuring the safety of transportation it can be fully placed.

To ensure reliable fastening, the spring clip can be made in the form of a rod with a threaded fastening to the housing wall.

For ease of installation, the housing is designed to be mounted on the handle of the fire extinguisher and / or on its head

The pyrotechnic pusher is made with the possibility of providing electrical contact with the electrical start unit in manual mode or with a self-starting device, or as part of a fire extinguishing system.

Fixing the position can be provided by a spline connection of the latch and the groove, made, for example, in the form of grooves around the perimeter of the pusher rod.

The possibility of practical implementation of the proposed device and its essence is illustrated by the drawing. Figure 1 shows a sectional view of an automatic start device (15) for a manual fire extinguisher (12) mounted on the head (13) of a fire extinguisher (12) with a rod (14) and fixed to it with a fastening nut (8) and a compensator sleeve ( 9). The device includes a housing (2) in which an initiation unit is located, consisting of a pyrotechnic pusher (1) with a working rod (6) and a latch (5) with a spring (4), the working rod of the pusher (6) and the latch (5) are structurally combined in the housing (2) and installed perpendicular to each other, the latch (5) is mounted on the wall inside the housing (2) and is made with the possibility of translational movement and fixing the operating position of the working rod of the pusher (6) using a spring (4). The spring tension (4) is preliminarily created by the screw plug (3). The fixation of the position is ensured by the spline connection of the clamp (5) and the groove (7) made on the rod of the pusher (6). The working rod of the pusher (6) is made with the possibility of axial contact with the rod head (13) of the fire extinguisher (12) when mounting the device on a manual fire extinguisher. On the pyrotechnic pusher (1) there are electrical leads

wires (11) for connecting, for example, to a fire alarm system (not shown in the drawing). A fire extinguisher (12) is provided with a sleeve for supplying a fire extinguisher (10).

The device operates as follows:

First, the housing (2) of the proposed device is mounted using the fastening nut (8) through a special sleeve - a compensator (9) on the head (13) of the fire extinguisher (12) or on its handle (not shown in the drawing). On the pyrotechnic pusher (1) are the leads of electrical wires (11) for connecting, for example, to a fire alarm system (not shown in the drawing). After the automatic start device (15) installed on the fire extinguisher (12) is connected to the existing fire alarm system, it is ready for operation.

In the event of a fire source, an electrical start signal from the fire alarm system via electric wires (11) starts the pyrotechnic pusher (1) and ejects the working rod of the pusher (6), which contacts the rod of the fire extinguisher head (14). The latch (5) with the help of a spring (4), the tension of which is created in advance by a threaded plug (3), fixes the working rod (6) in a strictly defined position, which is provided by the spline connection of the latch (4) and the groove (7), which corresponds to the working position opening the head (13) of the fire extinguisher (12). A fire extinguisher (12) opens and a fire extinguishing agent along the sleeve for supplying a fire extinguisher (10) is supplied to the combustion zone.

When assembling this device, industrial products are used:

- The pyrotechnic pusher PT-12 is produced by the Murom Instrument-Making Plant;

- Assembly units of the device (body, retainer, rod,) are made by standard metalworking techniques;

- Powder-type fire extinguisher, type OP-3, manufactured by ZAO Pavlovo-Posadsky Fire Hose Combine.

The tests involved:

- a prototype, the design of which corresponds to the description of patent No. 2291729: a fire extinguisher (with a locking start-up head, siphon tube), equipped with a thermal lock in a protective housing, the inner diameter of which is 5.0 diameters of the thermal lock;

- traditional injection fire extinguisher brand OP-3;

- design in the form of the proposed device mounted on a traditional fire extinguisher brand OP-3.

Each of the test participants is operational when placing the specified fire extinguishing means inside the protected volume.

If the fire extinguishing equipment is placed outside the protected volume, the structure is fixed on the external wall of the room. Through a special hole in the wall, a regular sleeve is supplied to the room, which is included in the design of a manual fire extinguisher or a special pipeline, which can optionally be equipped with a fire extinguisher. The wires from the fire alarm system are connected to the proposed device and connected to the pyrotechnic pusher. Further operation of the fire extinguisher in the event of a fire is similar to the above description.

Fire tests of the proposed sample, prototype and traditional injection fire extinguisher, grade OP-3, were carried out in a special chamber

with a volume of 5 m 3, on the floor of which a burning center was placed, the choice of a burning center was made according to the requirements of GOST 51057-2001 “Fire fighting equipment. Portable fire extinguishers. General technical requirements. Test Methods. "

A traditional fire extinguisher was placed outside the chamber wall, which was actuated by the operator. In the same way, the proposed option was placed, which was driven by an electric signal from a self-starting device pre-installed on the ceiling of the camera (examples Nos. 10, 11, 12), from a signal from a fire extinguishing system (examples Nos. 7, 8, 9), and from the start node in manual mode (examples No. 13, 14, 15, 16). The analogue, based on its features of launching into operation, was previously placed inside the chamber in the vicinity of the burning center.

The test results are presented in table 1.

From the above data it can be seen that the proposed option has more possibilities for placement (both inside and outside the protected object), has better indicators of inertia of operation when working in automatic mode, while maintaining the function of autonomous use, both in manual and in automatic modes.

Thus, the proposed utility model meets the criteria of patentability under current law and is aimed at solving the problem.

Table 1. Fire test results. No. Way to drive Fire extinguisher placement Response time, s result note No. examples one. prototype 13 V auto Only Inside the camera 10 Tush Start without operator 2. 12 Tush 9 Tush 3. four. Standard fire extinguisher 13 V manually Only outside the camera 5 Tush Operator involvement 5. 5 Tush 6. 5 carcass 7. Proposed option 13 V Automatic from alarm Outside the camera 5 Tush Start without operator 8. four Tush 9. 3 Tush 10. Inside the camera eleven. 5 Tush four Tush 12. four carcass eleven. Proposed option 13 V Manually Outside the camera 5 Tush Operator involvement 12. 5 Tush 13. Inside the camera 5 Tush 5 carcass fourteen.

Claims (7)

1. A device for automatically starting a manual fire extinguisher, comprising a housing and a starting initiation unit for a manual fire extinguisher located in the housing, characterized in that the initiation unit consists of a pyrotechnic pusher with a working rod and a latch with a spring and is configured to axially contact the working rod of the pusher and the head rod a fire extinguisher, a rod of a pusher and a clamp with a spring are structurally combined in the housing perpendicular to each other, the clamp is fixed at one end to a wall inside the housing and is made with the possibility of translational movement and fixing the position of the operating rod of the pusher. 2. The device according to claim 1, characterized in that the pyrotechnic pusher in the housing is fully or partially placed. 3. The device according to claim 1, characterized in that the spring clip is made in the form of a rod with a threaded fastening in the wall of the housing. 4. The device according to claim 1, characterized in that the housing is configured to be mounted on the handle of a fire extinguisher or on its head. 5. The device according to claim 1, characterized in that the pyrotechnic pusher is made with the possibility of providing electrical contact with the electrical start node in manual mode or with a self-starting device, or as part of a fire extinguishing system. 6. The device according to claim 1, characterized in that the fixation of the position provide a spline connection of the latch and the groove made on the rod of the pusher. 7. The device according to claim 1, characterized in that the groove is made in the form of a groove around the perimeter of the pusher rod.