| 摘要 |
Penetration device (P) for use in fire-fighting operations, in particular in the context of airport rescue, comprising a fixed member (FP) suitable to be associated with a tip of a arm or of a boom (15), and a member partially tapered and slidingly movable (MC) with respect to said fixed member in order to penetrate a wall of a body, for injecting a fire-retardant and/or fire-extinguishing medium within said body, wherein the fixed member (FP) comprises a hollow tubular outer member (OC) and the movable member (MC) comprises also a hollow tubular portion, coaxially arranged within the outer member; the fixed member (FP) comprising an inner hollow tubular member (IM) fixed with the outer hollow tubular member (OC) and arranged so as the movable member is interposed between the inner and outer members (IC, OC), the inner and outer members (IC, OC) both defining a sliding guide for the movable portion (MC). |
