Patent ID: 9731887
Date: 2017-08-15
CPC Classifications: B65D,F16J

Claim:
1. A rubber seal installed in a lid body of a lid of a vacuum receptacle to seal a gap between a receptacle body and the lid body in such a manner that, when the lid is closed, the inner space of the vacuum receptacle can be shielded from the outside, wherein the rubber seal comprises: a body portion configured to surround the lateral side of an inner space and to extend vertically, and fitted on the outer circumferential surface of a seal mounting portion formed to extend downward in the lid body such that the inner circumferential surface of the body portion comes into close contact with the outer circumferential surface of the seal mounting portion, thereby primarily sealing a gap between the lid body and the rubber seal; an elastic sealing wing portion formed to extend outward from the bottom side of the body portion and provided along the circumference of the body portion such that the elastic sealing wing portion elastically comes into close contact with the edge of an opening of the receptacle body, thereby sealing a gap between the receptacle body and the rubber seal; and a multi-functional wing portion formed to protrude outward from the body portion above the elastic sealing wing portion and provided along the circumference of the body portion such that the multi-functional wing portion comes into contact with the bottom surface of the lid body, thereby secondarily sealing the gap between the lid body and the rubber seal and supporting the body portion to suppress the body portion from bulging outward, wherein an adhesion recess is formed on the top surface of the multi-functional wing portion in such a manner that when the multi-functional wing portion is in contact with the bottom surface of the lid body, a sealed adhesion space is formed between the bottom surface of the lid body and the multi-functional wing portion.