| 摘要 |
<p>A the pneumatic multi-way connector has a cycling motor (1) and a cycling valve (2) for cycling pressure air from a non-shown pump to selected ducts (31, 32, 33, 34) in an outlet socket (3). The ducts are complementary to inlet ducts (41, 42, 43, 44) of an inlet plug (5). A ring cover encloses a rigid ring (16) which has a button (17) exposed at a top portion cover. A spring (18) biases the ring and the button upwards. The ring cover and the ring have a central opening (19) for receiving the disc (52) and the nose (55) of the cover (50) with the slots (56,57) aligned with the tabs (12,15). The plug is located radially around a peripheral engagement region (20) of the opening (19). The disc (52) has an upper latch lug (58), which engages behind a rib (59) integral with the plate (14). This is at the top of the peripheral engagement region (20). At the bottom of the zone, the disc has a lower latch lug (60), provided in two parts separated by the slot (56). This engages behind the bottom sector (61) of the ring (16). The ducts (31-34) are provided in a resilient member (35) captivated between the outlet plate (14) and a stator moulding (36) forming part of the cycling valve, which does not form part of the present invention and will not be further described save that it has a rotor (37) on the side of the stator remote from the resilient member. The bores terminate at the tubes (38) having deformable noses (39). These abut the disc (52) and form a seal therewith. Release of the plug, by depression of the button (17), allows the tubes and noses to recover, pushing the plug out to a position whence it falls down, this being the intention in the event of an emergency calling for disconnection and deflation of the mattress.</p> |
