| 摘要 |
<p>Smoke inverse stairs arranged in buildings are used for personnel evacuation, and comprise a plurality of smoke inverse staircases (7) connected with each other. The smoke inverse staircase (7) comprises a downward fire escape connected upwardly with a floor plan (6) and downwardly with an escape staircase (8). A hot smoke inlet (3) is provided on the connection position of the smoke inverse staircase with the floor plan, and is connected with a smoke exhausted channel (2). The smoke inverse stairs can effectively prevent hot smoke from entering the escape staircase.</p> |
