Plastic plug of thermos bottle

Abstract

The invention provides a plastic plug of a thermos bottle. The plug of the thermos bottle is a cylinder-shaped plastic plug body, the plastic plug body is divided into an insertion section and a handle section, wherein the insertion section and the handle section are separated by a limiting plated annularly arranged on the plastic plug body for a circle, a top seal ring and a lateral seal ring sleeve the insertion section, an air exhaust groove is axially formed in the outer wall of the insertion section, the upper end of the air exhaust groove is positioned below the top seal ring, the lower end of the air exhaust groove extends outside the lateral seal ring, the top seal ring contacts the lower end surface of the limiting plate, an upper seal plate protruding upwards is embedded in the top of the handle section, and a vacuum cavity is arranged below the upper seal plate. The plug body of the thermos bottle is a plastic piece, and the top seal ring and the lateral seal ring are arranged for respectively sealing the bottleneck of the thermos bottle, therefore, the sealing effect is good; the plug body is internally provided with the vacuum cavity, therefore, the heat insulation effect is good, and the hand-scalding phenomenon of the plug body is avoided; and the temperature of the plug body can be intuitively displayed through the color change of the upper seal plate.

Description

technical field [0001] The invention relates to the technical field of plastic product production, in particular to a plastic thermos bottle stopper. Background technique [0002] The thermos bottle is a vacuumized double-walled bottle as a liner and a heat preservation container formed by a cover shell. In modern society, a thermos bottle is one of the indispensable items in people's daily life. Vacuum bottles can be divided into three categories: (1) Thin mouth type: small mouth diameter, good heat preservation performance, mainly used for holding boiling hot water, decocting hot Chinese medicine juice, hot drinks and cold drinks, etc.; (2) Large mouth type: The diameter of the mouth is large, and the items are easy to pick and place. It mainly holds ice cubes, ice cream, cold drinks with containers, iced medicine, liquid gas, anti-fermentation substances, etc., and can also hold hot food, hot drinks with containers, etc.; (3) cups Type: Large mouth diameter, small capaci...

AI Technical Summary

Problems solved by technology

At present, most of the thermos bottles used in daily life use wooden stoppers. Although the traditional cork is cheap, its sealing effect on the thermos bottle is not good. If it is not used for a long time, the cork will breed bacteria and even Mildew occurs; also easy to burn hands

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