A high strength combination lock

By housing the cryptographic mechanism inside a hollow metal tube and creating a force transmission path, the problem of structural failure of existing mechanical combination locks under high-intensity destructive attacks is solved, thereby improving the lock's high tensile strength, impact resistance, and anti-vandalism capabilities.

CN122039880BActive Publication Date: 2026-07-21ZHEJIANG ZHONGLI GRP
View PDF 1 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
ZHEJIANG ZHONGLI GRP
Filing Date
2026-04-01
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

Existing mechanical combination locks are prone to structural failure under high-intensity destructive attacks, and their tensile, impact, and vandal resistance capabilities are insufficient, thus compromising security.

Method used

The cryptographic mechanism is housed inside a hollow metal tube, and the connecting cable is directly and fixedly connected to the hollow tube. The lock and the hollow tube form a force transmission path. The cryptographic mechanism does not participate in the force transmission, and the hollow tube serves as the main load-bearing component to bear the external load.

Benefits of technology

It significantly improves the lock's tensile strength, impact resistance, and vandalism resistance, preventing precision components from being damaged or failing due to stress, and enhancing overall security.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN122039880B_ABST
    Figure CN122039880B_ABST
Patent Text Reader

Abstract

The application discloses a high-strength password lock and relates to the technical field of locks, which comprises a supporting mechanism, a lock piece, a lock gate, a connecting rope and a password mechanism. The supporting mechanism comprises a hollow pipe made of metal, a jack is arranged on the wall of the hollow pipe, the lock piece is arranged in the jack in a plug-in manner and is provided with a locking hole, the lock gate is slidably arranged in the hollow pipe along the axial direction of the hollow pipe, the end of the lock gate is inserted into the locking hole in the locking position, the password mechanism is arranged in the hollow pipe, the operating part of the password mechanism is exposed through the window on the wall of the hollow pipe, one end of the connecting rope is fixedly connected with the lock piece, and the other end of the connecting rope is fixedly connected with the hollow pipe. In the locking state, the outer circumferential surface of the lock gate is in sliding contact with the inner wall of the hollow pipe or is connected through an intermediate force transmission structure, so that the pulling force acting on the lock piece is directly transmitted to the hollow pipe through the lock gate. The password mechanism is separated from the force transmission path, and the pulling resistance, impact resistance and damage resistance of the lock are remarkably improved.
Need to check novelty before this filing date? Find Prior Art