Knob type mechanical cipher lock with measuring-proof apparatus

Abstract

The invention discloses a knob-typed mechanical coded lock with an anti-detection device, which comprises a lockset supporting plate, a driven coded wheel, a drive coded wheel, a drive coded wheel groove, and a coded groove inserting block, and is characterized in that the mechanical coded lock also comprises a V-shaped wedging plate which is connected into a whole with the coded groove inserting block, the two clevices of the V-shaped wedging plate is closely clung to the lockset supporting plate and is kept to be parallel to a lockset support, and the two clevices of the V-shaped wedging plate take acute angles; the drive coded wheel and the driven coded wheel are installed on a rotating shaft after being spaced by a spacing piece; the middle part of a reset V-shaped spring piece of a coded tray is fixed on the lockset supporting plate, and the two ends of the V-shaped spring piece are closely clung to the driven coded wheel and are applied by pressure. The coded lock can effectively prevent the code of the mechanical coded lock to be detected, furthermore, the structure of the coded lock is simple, the normal unlocking time is short, and the coded lock can be widely applied to safety boxes and security doors.

Description

technical field [0001] The invention relates to a combination lock, in particular to a knob-type mechanical combination lock with an anti-detection device which can be installed on safes, metal cabinets and anti-theft doors. Background technique [0002] With the development of the economy, people's awareness of confidentiality has been strengthened, and combination locks have been widely used. The knob-type mechanical combination lock in the combination lock is widely used in safes, safes, file cabinets, antimagnetic fireproof cabinets, anti-theft doors, bank doors, warehouse doors, car doors, civilian doors and mechanical jamming mechanisms. The advantages of this combination lock: 1. No key, no power supply, no battery, no waste pollutants; 2. All mechanical structure, can withstand quite harsh external environment, wide range of use; 3. Simple operation, relatively short unlocking time , The average unlocking time is about 15 seconds; 4. The structure is simple, strong ...

AI Technical Summary

Problems solved by technology

However, there is a hidden danger that the mechanical password lock is more likely to be tested by an experienced illegal unlocker to test out the password data, so there is a serious security risk

[0003] The Chinese patent "An Expansion Clutch Mechanical Password Mechanism for Safes" (Patent No.: 98101385.6) discloses a mechanical password mechanism that can prevent passwords from being tested. Release the interlocking shaft-moving password wheel and its control mechanism; the password mechanism has poor anti-detection effect because its anti-detection device is located at the rear end of the mechanical password mechanism, and the use effect is not ideal

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