| 摘要 |
<p>The ventilation valve for beverage cans has a valve insert (1) with radial movement in an elastic bung bush. The bung bush is a sleeve (5) with a ratchet lock mechanism (8,10) and sealing rings (9). The valve insert (1) has a grip section (2) as a plate (22), with a center shoulder (3) and a basket (4) gripped by it. The shoulder (3) has at least one surface which forms a channel with the inner wall of the soft part (6) of the sleeve (5). The basket (4) has at least one sealing surface (13) to seal the side drilling (14) against liquid, together with the inner wall inner wall of the sleeve (5) formed by the soft part (6), and at least one surface forms a channel together with the inner wall of the soft part (6). The plate (22), at the grip section (2), has openings to form a channel parallel to the upper surface of the outer flange (10). A cam structure (21) is shaped at the under side of the grip plate (22), to engage a recess (20) in the outer flange (10). The plate (17) shaped at the hard section (7) has nominal fracture points (16).</p> |
