| 摘要 |
The present invention relates to an inflatable unit for evacuation purposes, said inflatable unit comprising at least a first inflatable chamber (1) and a second inflatable chamber (2), said chambers abutting each other, an opening, which is arranged between the two inflatable chambers (1, 2), a pressure source with an inflating gas, which pressure source is connected to the first inflatable chamber (1), a one-way valve (3), which is arranged in connection with the opening between the inflatable chambers, so that the inflating gas only can pass from the first chamber (1) to the second chamber (2). The one-way valve (3) comprises at least a first sheet (4), which is made of a flexible material, said first sheet (4) being adapted to be a sleeve (5) or be part of a sleeve (5). Furthermore, the sleeve (5) has a first end (7) and a second end (8), and at least openings (9, 10) at both ends (7, 8), said sleeve (5) being substantially closed between the ends (7, 8). The sleeve (5) is directly or indirectly connected at the first end (7) to an outer side (6) of the first chamber (1) around the opening so that an airtight passage for the inflating gas is created inside the sleeve (5).
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