| 摘要 |
FIELD: fire-fighting means. ^ SUBSTANCE: invention can be used for fire extinguishing agent supply in a combustion region. For more effective fire extinguishing, the fire suction hose contains a frame with rubber and protective layers connected with cuffs located on its ends, the frame is screwed and cylindrical in the form of a coiled wire between the external and internal rubber layers enclosing it from the external and internal sides respectively. The external rubber layer encloses the rigidly connected protective layer made of a rubber cloth; the external and internal rubber layers, and also the protective layer made of the rubber cloth are corrugated and axially symmetrical to the screwed cylindrical frame and coaxially to each other; the corrugations of these layers are formed on equispaced cylindrical screwed surfaces. The screwed cylindrical frame is rigidly connected with the cylindrical cuff containing three coupled cylindrical layers being an extension of the external and internal rubber layers respectively, and also the protective layer made of a rubber cloth. ^ EFFECT: invention provides fire extinguishing agent supply in the combustion region. |
