| 摘要 |
<p>Disclosed is a packaging container (10) for containing liquids and viscous liquid-state products as cosmetics, daily chemicals, drugs and food. The packaging container (10) comprises a container body (11) and a vacuum pump head. The container body (11) comprises a main body portion (110). The vacuum pump head comprises a pressing head (121) and a pump core (122); the pressing head (121) comprises a support post (1213); the container body (11) further comprises a first tube portion (112), a second tube portion (113), a connection portion (115) and a sealing ring (116); the first tube portion (112) and the second tube portion (113) are formed at one end of the main body portion (110); the connection portion (115) is formed between and connects the first tube portion (112) and the second tube portion (113); the sealing ring (116) is formed on the connection portion (115); and the support post (1213) is located in the second tube portion (113). The vacuum pump head further comprises a valve rod (123); the valve rod (123) comprises a rod body (1231), a flange (1235) and a sealing groove (1236); the rod body (1231) is arranged in the support post (1213) and located in the second tube portion (113); the flange (1235) is formed at one side end of the rod body (1231); the sealing groove (1236) is formed on the flange (1235) on a surface thereof adjacent to the connection portion (115) and can fit and seal with the sealing ring (116); and the sealing groove (1236) can at least come into contact with at least one side of the sealing ring (116). The contact between the sealing groove (1236) and the at least one side of the sealing ring (116) forms at least one layer of seal, avoiding the leakage due to pressure on the main body portion of the packaging container.</p> |
