| 摘要 |
<p>A drinking device (10) comprising a body (100) having an open upper end (110) and for containing a liquid, and a lid (200) for sealingly closing the upper end (110) of the body (100). The lid (200) has an outlet (224) incorporating a first one-way valve (320) for dispensing liquid from the body (100) upon the application of suction at the outlet (224). The lid (200) includes an inlet (214) incorporating a second one-way valve (310) for air intake to automatically balance the internal pressure of the closed body (100) with the external pressure while liquid is being dispensed. The first valve (320) comprises a chamber (323) having a resiliently deformable wall (326) including a hole (328) in communication with the outlet (224). The hole (328) is normally closed by being pressed against an internal surface of the body (100), or the lid (200) by virtue of the resilience of the wall (326) and is openable upon the application of said suction. <IMAGE></p> |
