Stretchable anti-theft combination cover and opening method thereof

Abstract

The invention relates to a stretchable anti-theft combination cover and an opening method thereof. The stretchable anti-theft combination cover comprises a rotary cover, a stretchable pipe and an inner plug, wherein a middle groove is formed in the middle of the rotary cover downwards, the stretchable pipe is located outside the middle groove, the upper part of the stretchable pipe is in a bell mouth shape, and is attached to the outer wall of the middle groove; the middle section of the stretchable pipe is in a multi-prism shape, the outer wall of the middle groove forms a multi-prism-shapedmatching surface matched with the stretchable pipe, the lower section of the stretchable pipe is circular, and the inner plug is installed on the periphery of the stretchable pipe and coaxially arranged with the stretchable pipe. The stretchable anti-theft combination cover and the opening method thereof have the advantages that the stretchable pipe is automatically extended when a bottle cap is unscrewed, it is guaranteed that liquid is not prone to spill during pouring, the use convenience and reliability are guaranteed, and meanwhile, due to the fact that when the rotary cover is unscrewed,the stretchable pipe is automatically extended, so that the volume of the whole rotary cover is not increased while the stretchable pipe is lengthened, and the whole body is more compact and attractive in appearance.

Description

technical field [0001] The invention relates to a retractable anti-theft combined cover and an opening method thereof, and relates to the technical field of container packaging and sealing. Background technique [0002] At present, the aluminum-plastic or plastic combination caps that are common in the market, the sealing part adopts the double structure of the inner plug and the upper cover, and usually the inner plug is provided with a liquid outlet to facilitate the liquid to flow out, and the liquid outlet is fixedly connected to the inner plug. Although this design facilitates the pouring of the liquid in the container to a certain extent, because the liquid outlet is relatively short, especially when encountering liquids with high viscosity, the liquid will stick to the liquid outlet and eventually spill out. affect user experience. Contents of the invention [0003] In order to overcome the defects of the prior art, the present invention provides a retractable anti...

AI Technical Summary

Problems solved by technology

[0002] At present, the aluminum-plastic or plastic combination caps that are common in the market, the sealing part adopts the double-body structure of the inner plug and the upper cover, and usually the inner plug is provided with a liquid outlet to facilitate the liquid outflow, and the liquid outlet is fixedly connected to the inner plug. Although this design facilitates the pouring of the liquid in the container to a certain extent, because the liquid outlet is relatively short, especially when encountering liquids with high viscosity, the liquid will stick to the liquid outlet and eventually spill out. Affect user experience

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