Bottle cap provided with antitheft ring

Abstract

The invention provides a bottle cap provided with an antitheft ring. The bottle cap comprises a bottle cap body and the antitheft ring integrally formed with the bottle cap body, wherein the antitheft ring is provided with a blade ring, the antitheft ring is inwards and circumferentially bent from the bottom to form the blade ring, and the blade ring is concentric with the antitheft ring and contract inwards; a plurality of blocking parts bulged inwards and radially are arranged on the inner circumference of the blade ring and along the same circumference at equal intervals and are bulged in saw tooth shapes; each blocking part extends from the top of each blade ring to the bottom; and the upper end surface of each blocking part is a stress part where the blocking parts collide with a blade support ring on a bottle body. Compared with the prior art, the antitheft ring is simple in structure, easy to manufacture, not prone to damage, good in antitheft effect, light in weight and larger in stress strength, the uniformity and the stability of a stress surface of the antitheft ring are improved, the tension which can be borne by the antitheft ring is increased, the overturn resistance of the antitheft ring is enhanced, and the cutting pull force of the antitheft ring is increased.

Description

technical field [0001] The invention relates to a bottle cap, in particular to a bottle cap with an anti-theft ring. Background technique [0002] A bottle cap of an ordinary plastic container, especially a bottle cap of a beverage bottle, comprises a bottle cap body and an anti-theft ring integrally formed with the bottle cap body and connected by a connecting bridge. The anti-theft ring is completely separated from the bottle cap body after the bottle cap is opened and twisted, which is an important part of the bottle cap. After the bottle cap is twisted off, the anti-theft ring at the bottom of the cap is broken and remains on the bottle mouth, so it can be easily judged whether the bottle cap has been opened maliciously. There are flaps and teeth on the inner side of the anti-theft ring. When the cap is opened, this part is hung on the thread of the bottle neck to prevent the anti-theft ring from moving up together with the cap. The bottle cap moves up continuously wit...

AI Technical Summary

Problems solved by technology

[0003] The anti-theft rings of some bottle caps on the market are too heavy, which wastes raw materials and increases production costs.

The force of the anti-theft ring of some bottle caps is on each separate force surface, which is easy to cause uneven force, thus affecting the tension of the anti-theft ring

Due to the insufficient tension of the anti-theft ring, the pulling force required for cutting is too small, and the ring is prone to breakage, which not only easily produces safety hazards in the process of food transportation, but also reduces the qualified rate in the production process of bottle caps.

In serious cases, it will also lead to the phenomenon that the anti-theft ring cannot be completely detached from the bottle cap body when opening the cap, causing the anti-theft ring to be twisted out together with the bottle cap body, which leaves a hidden danger to food safety

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