Three-position lock security handcuffs

Abstract

The invention discloses three-position lock security handcuffs and belongs to the field of restraint equipment for police. The handcuffs comprise handcuff rings, lock body shells, connectors and a chain. Each handcuff ring comprises a basic ring and a movable ring, one end of each basic ring and the corresponding lock body shell are fixedly mounted together, the other end of each basic ring is hinged to one end of the corresponding movable ring through a hinge, the other end of the each movable ring is buckled with the corresponding basic ring, and bolt holes corresponding to one another are formed in one end, buckled with each movable ring, of each basic ring. The connectors are arranged at corresponding ends of the two lock body shells respectively, and connected together through the chain. Rivet holes and an unlocking insertion hole II are formed in the front of each lock body shell, and an unlocking insertion hole I is formed in the lateral side of each lock body shell. A lock body frame with a U-shaped section is mounted in each lock body shell, at least one bolt is arranged in each lock body frame, and the lock bolts correspond to the bolt holes in the basic rings and the movable rings. Compared with the prior art, the three-position lock security handcuffs have the advantage of reasonable design, easiness in processing, convenience in operation, high safety and the like.

Description

technical field [0001] The invention relates to the field of constraining police equipment for police use, in particular to a three-position lock safety handcuffs. Background technique [0002] At present, there are two types of police handcuffs. One is the old-fashioned handcuffs. The structure is a combination of rack and bayonet. The keyhole is similar to the door lock used on the train. The traditional old-fashioned handcuffs do not have an anti-pick device and are very easy to open. As long as the polygonal prism inside the keyhole can be rotated with a tool, the handcuffs can be opened. In normal case handling, it is very common for this type of handcuffs to be opened by foreign objects, whether it is the police or criminal suspects who have "entered the palace" many times. There is also a new type of handcuffs that is widely used at present. It was invented and used since the 1980s. Most of them have added anti-pickers, and their lock cylinders generally adopt speci...

AI Technical Summary

Problems solved by technology

There is also a new type of handcuffs that is widely used at present. It was invented and used since the 1980s. Most of them have added anti-pickers, and the lock cylinder is generally a special-shaped column, and a special key must be used to turn the lock cylinder to open the handcuffs.

Even so, this novel handcuffs still has the following two defects: the one, because this handcuffs can only be opened with a key, problems such as key loss and key keeping confusion often occur when police officers use it, which is very impractical; It is due to the simple structure and principle of the handcuffs. Although the anti-pick is added, as long as there is a hard object and a little understanding of the principle, the handcuffs can still be easily opened by using ordinary hard objects to remove the anti-pick from the snap ring.

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