| 摘要 |
The flood seal arrangement 500 comprises a closure member 200, a frame 300 and a seal arrangement located on the lower edge of the frame, wherein when the closure member is closed first and second seal portions 600, 700 are arranged to effect a seal with the frame, with an opening 10 between the seal portions whereby, in use, flood water extends into the opening and the greater the water pressure in the opening the greater the sealing effect. The opening may be closed by a resilient member 606 which engages with the closure member and flexes under pressure of flood water. The arrangement may comprise a chamber 12 including a compressible sealant material which is compressed upon closing of the closure member, by water pressure in the opening or by the seal portions. The seal portions may be formed separately or integrally. The closure member may be a door, window or flood barrier. Also claimed is a method of sealing a closure member. |
