Commodity anti-theft device

Abstract

The invention relates to a commodity anti-theft device. The commodity anti-theft device comprises an outer shell, an anti-theft steel wire, a steel wire locking mechanism, a pulling body, a pulling reset spring and a pulling steel wire. The fixed end of the anti-theft steel wire and the outer shell are relatively fixed. The two side walls of the outer shell are provided with a steel wire inlet and a steel wire outlet correspondingly. The free end of the anti-theft steel wire penetrates into the outer shell through the steel wire inlet and extends out of the steel wire outlet. The steel wire locking mechanism is arranged on one side of the steel wire inlet. The steel wire penetrates through the steel wire locking mechanism and is locked by the steel wire locking mechanism. The pulling body is slidably arranged in the outer shell. The pulling reset spring is arranged between the pulling body and the outer shell. The two ends of the pulling steel wire are connected with the steel wire locking mechanism and the pulling body correspondingly. A magnet or an iron block is used as the pulling body. By connecting the pulling steel wire with a telescopic part and the pulling body, the pulling body drives the telescopic part to move away from a telescopic fixing part through the pulling steel wire, a steel wire fixing bead moves outwards in the radial direction, then the anti-theft steel wire is unlocked, the unlocking stroke is increased, and the commodity anti-theft device can adapt to commodities in different specifications and simple in structure.

Description

technical field [0001] The invention relates to the field of anti-theft technology, in particular to a commodity anti-theft device. Background technique [0002] With the rapid development of society and economy, there are more and more shopping malls and supermarkets, and the scale is getting bigger and bigger. The anti-theft of goods in shopping malls and supermarkets is an important part of their operations. In order to reduce labor costs and improve customer experience, at present Shopping malls and supermarkets mostly use anti-theft tags to lock on the goods, so as to prevent the goods from being maliciously stolen. [0003] Korean Utility Model No. 20-0274007 discloses a product anti-theft device, and Japanese Patent Application No. 2008-204218 discloses an anti-theft label. The lower side of the anti-theft case is provided with a return spring, and a plurality of steel balls arranged in a circular direction are arranged on the inner side of the anti-theft case. A cha...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a commodity anti-theft device to solve the problem that the existing anti-theft device cannot be unlocked smoothly when the anti-theft steel wire extends out of the locking mechanism, and the application range is limited

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