Expanding bottle stopper

Abstract

The invention relates to an expanding bottle cork which is composed of a main body, an elastic body component and a mobile component which can drive the main body to do longitudinal shift. By using the mobile component to drive the main body to do a first section of the longitudinal shift, the expanding bottle cork can cause the elastic body to do radial expansion; in addition, by utilizing the mobile component to drive the main body to do a second section of the longitudinal shift, the expanding bottle cork can cause the elastic body to do radial shrinkage. In the expanding bottle cork disclosed by the invention, a connecting sheet of the main body is annularly arranged in a radial way, therefore, the connecting sheet can do radial expansion; in this way, good sealing effect between the bottle cork and an opening of a vessel can be achieved, furthermore, the cost can be lowered due to the simple structure of the bottle cork.

Description

technical field [0001] The invention relates to a bottle stopper, in particular to an expandable bottle stopper capable of radial expansion or contraction. Background technique [0002] Liquids such as general edible vinegar, oil, spirits and wines are sold in the market for convenience, and they are usually made of glass or pottery bottles or urns as containers. During bottling, the liquid is poured into the container and a plug is inserted into the opening of the container to close the opening. In terms of structure, the outer diameter of the plug must be designed to be at least slightly larger than the inner diameter of the opening, so that after the plug is axially inserted into the opening position, the outer wall of the plug and the inner wall of the opening can be ensured to be in close contact with each other. The stopper resists the high internal pressure in the container without falling out, so as to preserve various liquids in the container for a long time. [0...

AI Technical Summary

Problems solved by technology

But this bottle stopper still has the following disadvantages when in use: (1) Although the above-mentioned bottle stopper can cause the peripheral wall of the elastic body to radially expand through the axial downward action of the insertion rod of the pressure column and the expansion part of the body , however, the cork has many components, so the cost of the cork cannot be reduced

(2) Since the radial expansion margin of the bottle stopper is limited, and most of the bottles currently on the market are made of glass materials, they are made by blowing

However, the blown bottle body will inevitably form micro-concaves or micro-protrusions on the inner wall of the bottle neck, so that the actual caliber value of the inner wall of the bottle neck cannot be accurately controlled. Therefore, the bottle stopper occasionally leaks during use.

(3) The body of the bottle stopper is only provided with four petals. Therefore, when the petals are radially expanded, the cross section of the elastic body is slightly square, and the tightness between the inner wall of the container opening is not very good.

The cork lacks snap-in positioning to ensure that the cork maintains a proper screw lock

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