| 摘要 |
A universal venting system for vacuum containers including a bottom element (A) - a base of the device; used to secure a hole in a container lid, consisting of two pressure pieces (1 - the upper one and 2 - the lower one), screwed with an integrated system of seals (3) and a gravity valve (4), as well as a plug that protects against inadvertent natural aeration (5), the top element (B) - a venting piston; used to evacuate mechanically the air from the device and consists of an external body (6) and a venting piston (7) provided with a system of seals (8) to prevent air inflow into the container. The invention is distinguished by its universality, which is an easy-to- mount bottom part (A) that can be fitted to any type of a lid, thanks to a threaded (9) joint of elements (1) and (2), which allows installation the lower element on a lid thick from 1mm to 4mm. A vacuum valve according to the invention (10) has a body consisting of the elements (1) and (2) equipped with aeration holes (12) that form a valve chamber (V/), inside which is the vertically seated valve (10) equipped with seals (13). The invention is distinguished by the fact, that the aeration of the device is provided by the vacuum valve (10), which, when risen, induces an inflow of air into the container. The invention has been also equipped with the top element (B), a universal pumping device attached directly to the bottom element (A) by a fastening thread. The pumping aeration device consists of piston (14), plunger with a head (15) and casing (16). |
