Container lid for vacuum sealing having locking parts and vacuum-sealed container employing same

Abstract

Disclosed is a container lid for vacuum sealing which generates negative pressure in the internal space of a container, which is provided by covering the open upper part of a container main body, and seals same. An annular packing is mounted so as to go around the inner surface of a lid main body, and a check valve is mounted in the inner part of the outer surface of the lid main body. The check valve generates negative pressure in the internal space of the container by allowing air inside the container to flow to the outside but preventing outside air from flowing into the container when a pressure difference occurs between the inside and outside of the container. A plurality of self catching protrusions are provided respectively at a plurality of points on the edges of the lid main body, and a plurality of locking members are mounted respectively and pivotably in sections adjacent to the plurality of self catching protrusions. Each locking member comprises: self-locking protrusions which are press-fitted and coupled to the self catching protrusions in a closed state so that the locking members are not released; and main body-locking protrusions which prevent the container lid from being taken off from the container main body by being caught by the circumference of the opening part of the container main body or a main body catching protrusion, even if the container lid rises due to the expansion of the packing as a result of a decrease in the negative pressure generated inside the container.

Description

technical field [0001] The present invention relates to a vacuum-tight container lid capable of achieving and maintaining a negative pressure in the inner space of the container and a vacuum container using the same, more particularly to a vacuum-tight container lid and a vacuum container using the same. In addition to the container body that absorbs and locks the container cap under the negative pressure, there is another locking part on the container cap. Even when the negative pressure is weakened, there is no need to worry about the container cap being detached from the container body. Background technique [0002] Food slowly deteriorates due to various Aspergillus niger, etc. in the air. In order to slow down the deterioration rate of food, in addition to the refrigerated storage method, a vacuum storage method in which the air inside the container is exhausted and the air pressure inside the container is lowered than that outside the container is used. Representative...

AI Technical Summary

Problems solved by technology

Most of the existing containers do not have additional space-limiting ribs for combining with the vacuum container lid

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