SU936941A1 - Throwable powder-type fire extinguisher - Google Patents

Description

(54) FLAMMABLE EXPLOSIVE EXPLOSIVE

one

The invention relates to

to fire protection.

A fire extinguisher is known that contains a cylinder for a fire extinguishing agent with a handle and a source of compressed gas 1.

The disadvantage of the fire extinguisher is the limited operational capability due to the long delay time. It cannot be used to deface fires on vertical and inclined surfaces, as it falls down under the action of its own weight without having had time to work.

The purpose of the invention is to expand the operational capabilities of the fire extinguisher to be cast.

This goal is achieved by the fact that a fire extinguisher containing a cylinder for a fire extinguishing composition with a handle and a source of compressed gas has gas-discharge tubes with brittle caps at their outlet and a ball lock installed in the cylinder cavity that is installed on the surface of the balloon. plugged from the end

with a drainage hole, the sleeve with the balls and the spring-loaded plunger locking them, the sleeve cavity between the plunger and the plug is connected to the venting pipes, and the cylinder is made of two hemispheres fastened with a ball joint.

FIG. 1 shows a fire extinguisher, longitudinal section; in fig. 2 - the same, cross-section; in fig. 3 - ball lock after undocking.

Fire extinguisher consists of a spherical

10 body 1, made of two hemispheres. The hemispheres have thickened edges 2 with grooves 3 for the sealing ring 4 of elastic material.

The hemispheres are interconnected by a ball lock consisting of a sleeve 5, an intermediate sleeve 6 and a lower sleeve 7, forming a housing. The sleeves 5 and 6 are interconnected by three balls 8. The balls are held in the grooves of the sleeves 5 and 6 by a punch 20 and fixed by a support spring 10, which abuts the other end of the sleeve 11 of the sleeve. From the cavity of the upper sleeve, three venting tubes 12 are withdrawn, which hermetically pass through the housing and end with deaf removable caps 13 made of brittle material.

The body of the ball lock with crosspieces 14 is connected to the thickened edges of the hemispheres of the fire extinguisher body.

To equalize the pressure with the pressure in the housing, there is a calibrated bore 15 on the upper bushing. The hemispheres of the housing are interconnected by a flexible connection, for example, a metal cable 16, to limit the release of the hemispheres when the fire extinguisher is triggered and thereby to achieve a more heap of powder.

The handle 17 of the fire extinguisher consists of a body that is fastened in the socket 18 with the help of a thread. The socket 18 is fixed to the body of the fire extinguisher by means of a nut 19. A nipple 20 is fixed in the nest by means of a thread, into which a needle 21 is pressed into the floor. On the nipple there is a rubber tube 22, which plays the role of a non-return valve. The rubber ring 23 serves to seal the can when the gas is filled into the housing. The housing is filled with fire extinguisher 24 through a socket with a unscrewed nipple.

In order to connect the two spherical halves of the housing, an intermediate sleeve 6 is put on the upper sleeve 5, the balls 8 are inserted into the grooves of the sleeves 5 and 6, and their exit from the grooves is blocked by the punch 9, which is pressed by the spring 10 and the hook 11. The groove of the hemispherical edge a seal is laid down, the hemispheres are folded up and screwed down with the help of the thread of the lower and intermediate sleeves until the thickened edges of the hemispheres are fully compacted.

The fire extinguisher works as follows.

The fire extinguisher body is filled either with an air mater in advance at the place where the fire extinguishers are stored, or before it is cast from its own can of compressed gas and sealed with a gas extinguisher. In this case, the balloon is stirred inside the handle body and to release gas from it into the body of the fire extinguisher, the handle is screwed into the socket 18 until the needle 21 pierces the sealed part.

the gas will be released into the body of the fire extinguisher and will create a design pressure.

Using the handle 17, the fire extinguisher is thrown into the fire. When hitting the protruding structures, one of the caps 13 is broken, as a result of which the pressure in the cavity of the sleeve 5 decreases sharply.

The punch 9 under the pressure of the propellant, overcoming the resistance of the spring 10, rises upward, releasing the release of the balls 8. The balls under the action of the lateral component from the wall of the intermediate sleeve 6 are ejected inside the upper sleeve. The lock opens. The disconnected hemispheres open abruptly and the gas spreads the fire extinguisher.

Thrown percussion extinguisher will be widely used to extinguish developing fires in hard-to-reach places of industrial buildings, ships, ships, aircraft. It can be used to extinguish fires of all classes, including switchboards and equipment under voltage.

Claims (1)

Invention Formula A throwable fire extinguisher containing a cylinder for a fire extinguishing composition with a handle and a source of compressed gas, characterized in that, in order to expand its operational capabilities, it has exhaust pipes with fragile caps at their outlet and a ball lock installed in the cavity of the cylinder the sleeve with the balls and the spring-loaded plunger locking them, which is installed from the body in which the plug with the drain hole is installed with the drain hole, the sleeve cavity between the plug and the plug is communicated with vapor pipes, and the cylinder is made of two semi-, spheres, fastened with a ball lock. Sources of information taken into account in the examination 1. Technical description and operating instructions for the P-14E.OOO.TO type fire extinguisher, 1978. 1