Compact powder fire-extinguishing device

A compact powder fire extinguishing device comprising a container filled with a fire extinguishing powder (3), means that generate a propulsive charge while being separated from the powder (3) by a piston (8), a wad (11) and a cover (14) sealing the container from the open end side, according to the utility model, said container with the fire extinguishing powder is made in the form of a single-use cartridge (1), said cartridge being separable from the fire extinguishing device by means of a reusable fast-action firing device (4), said fire extinguishing powder (3) being disposed inside a casing (2) of the cartridge (1) in a polymer tube (5), one end (6) of which is circumferentially fastened at an outlet of the casing (2) of the cartridge (1), and the second end of the tube (5) abuts a sleeve (7) and is configured as a piston (8) having an aperture (9), wherein there is a coin-like sealing disc (10) mounted on the inside of the piston (8) opposite to the aperture (9), while the wad (11) is configured as a polyhedron with a pointed central part (12) and fins (13);

• furthermore, the means that generate the propulsive charge are placed within the casing (2) of the cartridge (1) and are configured as an initiator (a striker-type igniter-percussion cap (15)) and a pyrotechnic gas generator (16) disposed one after the other, said gas generator being connected to the cavity of the sleeve (7), and the other end of the cartridge (1) is provided with a contoured surface (18) and is connected to the firing device (4), which comprises a mechanism for fastening and discharging the cartridge, containing a collar (20) having flat curved clamping springs (24) located around the circumference of the collar (20) and a trigger mechanism having a head (30) installed with the possibility of free movement inside the aperture (31) of the end wall of the cylindrical support (26) and a flat striking spring (32) with a striker (33), which is in contact with a sear (34), said spring (32) being fixed to cylindrical brackets (35) and (36) integrated with a rod (37), and a hammer (38) connected with a trigger (41) and a safety catch (46) being attached to said brackets.