| 摘要 |
<p>A sealing cap, which is a cap body (100) for sealing a container, has two sheetlike seal rings (210,220) on the cap body (100) so as to form two sealing function portions, further consummate the sealing function for the container and keep the integrality of the container opening. In addition, a trepan boring (102) and multiple air holes (103) are provided on the cap body, and a mushroom air valve (160) is mounted in the trepan boring (102). The cap body can be inserted into the container opening and cover it by means of the air-release function of the air valve (160). Furthermore, an air extractor can be used to vacuumize the container and so make the inside of the container being in vacuum state.</p> |
