| 摘要 |
A retaining valve (1) comprises a silica gel valve body (2), an upper valve box cover (3) and a lower valve box cover (4). The upper valve box cover (3) is provided with an air hole (10), and the lower valve box cover (4) is provided with an air inlet pin (9). The silica gel valve body (2) comprises an outer ring (5) and an inner ring (6). The interior of the inner ring (6) is a closed valve plate. The inner ring (5) is connected to the outer ring (6) through an elastic piece (7). The outer ring (6) is fixed between the upper valve box cover (3) and the lower valve box cover (4). The inner ring (6) is in a suspension state between the upper valve box cover (3) and the lower valve box cover (4). The retaining valve (1) is applicable to vessels for different purposes to control the closed or circulating state of gas inside the vessels, and has a simple structure and reliable functions. Also disclosed is a liquid vessel comprising the foregoing retaining valve. |
