| 摘要 |
<p>A trigger dispensing device (1) for a liquid comprises a frame (3) in which a dispensing duct (14) is made, an aspiration valve (30) and a supply valve' (60). The supply valve comprises a membrane (62) made in flexible material, abutting with the dispenser mouth (14a) of the dispensing duct (14). The device further comprises a blocking element (80), made in a rigid material, suitable for engaging with the frame and influencing the membrane in compression to hold it tight against the frame.</p> |
