Intelligent fetter with fetter chain capable of being automatically retracted and released

Abstract

The invention provides an intelligent fetter with a fetter chain capable of being automatically retracted and released. The intelligent fetter with the fetter chain capable of being automatically retracted and released comprises two foot rings with locks, a safety winder and a rollable steel wire; one end of the rollable steel wire is hinged to one foot ring with the lock, and the other end of the rollable steel wire is wound on the safety winder; the safety winder is connected to the other foot ring with the lock in a hinged manner; the safety winder comprises a body, a rotating body and a volute spiral spring; the outer portion of the body is connected to the foot ring with the lock in a hinged mode; a cavity is formed in the body; the rotating body and the volute spiral spring are arranged in the cavity; one end of the volute spiral spring is connected to the body, and the other end of the volute spiral spring is connected to the rotating body; the rotating body is rotationally arranged on the body; and a winding part is arranged on the outer wall of the rotating body. By using the intelligent fetter with the fetter chain capable of being automatically retracted and released, the suspect can walk in a longer stride; and the intelligent fetter is suitable for various environments and convenient to carry. Meanwhile, when the suspect wants to escape and accelerate, a locking block is brought out under the action of centrifugal force and is inserted into a tooth groove to be locked, so that the steel fetter chain is locked, and the suspect is controlled.

Description

technical field [0001] The invention relates to the technical field of law enforcement appliances, in particular to an intelligent ankle shackle whose shackles can be retracted automatically. Background technique [0002] At present, in the process of police work such as arresting, escorting suspects, and identifying the scene, light shackles and heavy shackles are mainly used to restrict the movement of criminal suspects. The length of the iron chain between the two feet of light shackles is generally 30-40 cm. Because the step arc is small, it is extremely inconvenient for the suspect to walk on complex terrain, get on and off vehicles, stairs, and steps, and it is easy to hang the ankle; 1. Walking on gravel ground, shackles and chains are easy to catch on obstacles and trip suspects; while heavy shackles are generally 18 catties fixed bolt-type death shackles, which are more harmful to the bare feet of suspects. [0003] When law enforcement units escort suspected theft ...

AI Technical Summary

Problems solved by technology

The length of the iron chain between the two feet of light shackles is generally 30-40 cm. Because the step arc is small, it is extremely inconvenient for the suspect to walk on complex terrain, get on and off vehicles, stairs, and steps, and it is easy to hang the ankle; , Walking on the gravel ground, the shackles and chains are easy to catch obstacles and trip the suspect; while the heavy shackles are generally 18 catties fixed bolt-type death shackles, which are more harmful to the bare feet of the suspect

[0003] When law enforcement units escort suspected theft suspects to Chongqing to identify the scene, because they need to walk long distances and are inconvenient to use traditional shackles, bad incidents of suspects escaping during the identification process often occur

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