Anti-fake bottle cover

Abstract

The invention discloses an anti-fake bottle cover which comprises a bottle cover cap, a bottle cap middle sleeve and an inner cover, wherein the inner cover is internally arranged inside the bottle cover cap; the inner cover is provided with an annular convex part which can generate elastic deformation; the bottle cap middle sleeve is provided with an annular internal retracted edge; the diameter of the annular convex part is larger than the diameter of an retracted opening of the annular internal retracted edge; and a cylindrical cover wall is arranged on the annular edge of the annular internal retracted edge. According to the anti-fake bottle cap provided by the invention, a bottleneck is also formed by the cylindrical cover wall and the opening of a wine bottle which means that the bottleneck formed by the cylindrical cover wall and the opening of the wine bottle is lengthened, so that the annular convex part cannot be propped back into the annular internal retracted edge and cannot recover to the original position; if people find that the bottle cover has been opened obviously while buying a bottle of wine, then the wine contained in the bottle may be fake wine; the anti-fake bottle cap provided by the invention cannot be rotated reversely after being opened, thereby fulfilling the anti-fake function of the anti-fake bottle cover.

Description

Technical field [0001] The invention relates to the technical field of bottle caps, in particular to an anti-counterfeiting bottle cap. Background technique [0002] As a part of wine bottle packaging, wine bottle caps have two main functions: one is airtightness, which protects the wine. This is the most basic function of bottle caps and the easiest for manufacturers to do; the other is beautiful. As an integral part of packaging, small bottle caps can play a finishing touch. In recent years, as the anti-counterfeiting of alcohol products has been paid more and more attention by manufacturers, bottle caps have begun to have anti-counterfeiting functions. [0003] Please refer to figure 1 with figure 2 , figure 1 It is a schematic diagram of the unopened structure of the anti-counterfeiting bottle cap in the prior art; figure 2 It is a schematic diagram of the structure of the anti-counterfeiting bottle cap after opening in the prior art. The inner cap 9 is generally made of sof...

AI Technical Summary

Problems solved by technology

[0004] When the current anti-counterfeiting bottle cap is made, the bottle cap cap 2 and the bottle cap middle cover 3 are integral structures, and the inner cap 9 is built into the bottle cap cap 2, and then the bottle cap cap 2 and the bottle cap middle cover 3 are fixed on the On the bottle mouth of the wine bottle, a cut is made at the separation part of the bottle cap 2 and the bottle cap middle sleeve 3, so that the customer can open the bottle cap 2, and at the same time as the cut is formed, because the cutting tool needs to press inward, the cut The nearby cover wall will shrink inward, forming the ring-shaped inner shrinkage 10 on the flat cover middle cover 3, and the ring-shaped inner shrinkage 10 forms a bottleneck with the bottle mouth of the wine bottle. At this time, the bottleneck formed is not deep enough. A relatively hard tool withstands the annular raised portion 1, and presses into the annular inner constriction 10, so that it passes through the bottleneck formed by the annular inner constriction 10 and the bottle mouth of the wine bottle, as long as the annular raised portion 1 is slightly pressed in , the inner diameter of the annular inner constriction 10 will become larger and larger, and the extrusion force received by the annular raised portion 1 will become smaller and smaller, and the entire annular raised portion 1 will be easily retracted into the annular inner constriction 10, This is because the annular protruding part 1 is made of soft rubber and can undergo elastic deformation. When its edge part is squeezed through the edge of the annular inner constriction 1, the pressure suddenly disappears, and the annular protruding part 1 will be filled quickly. The space inside the annular inner constriction 1, that is, the space originally occupied by the bottle cap when it is not opened, so the entire bottle cap is restored to its original state, which cannot play an anti-counterfeiting effect

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