DEVICE FOR USE IN FIRE-FIGHTING OPERATIONS

The invention discloses a device for use in fire-fighting operations and a penetration device of the device for use in firefighting, comprising an ex tinguishing device (1) arranged on an end region (2) of a cantilever arm (3) of a device for use in fire-fighting operations and adjustable in at least one spatial direction, and a penetration fixture (8) that is adjustable rela tive to the extinguishing device (1) and has a double-acting pressure cylind er (35) that can be subjected to pressure by a pressure medium from a hydrau lic system (34) via at least one control valve, said cylinder having a tubul ar continuous piston rod (36). Said rod has a penetration tool (9) on a prot ruding end (14) having a through-hole and a nozzle head (15). At another end (38), the piston rod (36) is connected in line with a supply mechanism for an extinguishing medium. At least one pressure accumulator element (76) is i n fluid communication with a pressure chamber (63) of the pressure cylinder (35) that brings about an extending motion of the penetration tool (9) when pressure is applied by the pressure medium. At least one further pressure ac cumulator element (79) is in fluid communication with a return line (71) for the pressure medium from a pressure chamber (64) that causes the penetratio n tool (9) to be retracted when pressure is applied.