| 摘要 |
The invention relates to an inflation-deflation device (1), of the type comprising: a portion (2) comprising an intake port (5) for a pressurised gaseous fluid, and a portion (6) comprising an inflation-deflation port (8) intended for communicating with the containment capacity, and an outlet port (9) that opens between said two portions (2.6); and a valve-operated control system (3, 10) for the actual inflation-deflation operations. According to the invention, one of the portions (6) comprises arrangements (14) for receiving a washer (12) capable of allowing said washer (12) to deform resiliently, under the effect of a pressure from a gaseous fluid exiting through the outlet port (9), in order to overcome the front support of an annular projection (13) provided on the other portion (2), and to create a fluid outlet passage between said annular projection (13) and said washer (12). |
