Novel double-key-linkage safe deposit box lock and lock cylinder sheet design method

Abstract

The invention discloses a double-key-linkage safe deposit box lock and a lock cylinder sheet design method. The double-key-linkage safe deposit box lock comprises an upper lock shell, a lower lock shell, a key I and a key II, wherein a spring bolt and a linkage block are arranged in the lower lock shell; a rear end of the spring bolt is located at a front end of the linkage block; the backward unlocking of the spring bolt is controlled by the linkage block; a lock cylinder pulling sleeve I and a lock cylinder pulling sleeve II are arranged in the upper lock shell; the lock cylinder pulling sleeve I is located above the spring bolt, and an eccentric cylindrical table at a bottom end of the lock cylinder pulling sleeve I is linked with the spring bolt in a matching way; the lock cylinder pulling sleeve II is located above the linkage block, and an eccentric cylindrical table at a bottom end of the lock cylinder pulling sleeve II is linked with the linkage block in a matching way; a retaining spring, a lock cylinder sheet small round pad and a plurality of lock cylinder sheets I matched with the key I which are connected in sequence are arranged in the lock cylinder pulling sleeve I;and a retaining spring, a lock cylinder sheet small round pad and a plurality of lock cylinder sheets II matched with the key II which are connected in sequence are arranged in the lock cylinder pulling sleeve II. According to the double-key-linkage safe deposit box lock, double keys and double lock cylinders are adopted, and a pure mechanical structure in which the spring bolt and the linkage block are linked in a mutual restraining way is adopted, so that high reliability is achieved; the double security need of a user is met; and the anti-theft and secrecy performance is improved.

Description

Technical field: [0001] The invention relates to a lockset, in particular to a novel double-key linkage safe deposit box lock and a design method for a lock chip. Background technique: [0002] Most of the general-purpose safe deposit box locks have a single-key single-cylinder structure, but for those safe deposit boxes that store important documents or financial items, not only require good anti-theft performance, but also require two people to be present at the same time to open the lock. Existing safe deposit boxes Due to the complex structure of the lock core, it is necessary to manufacture a variety of iron lock chips with different structures in the lock. The parts are large in size and poor in rigidity and strength. But very complicated, cause the firmness, secrecy, reliability of existing bank safe deposit box dual-key linkage lockset not very ideal, existing lockset is difficult to satisfy the use requirement of high-quality bank safe deposit box. Invention conte...

AI Technical Summary

Problems solved by technology

[0002] Most of the general-purpose safe deposit box locks have a single-key single-cylinder structure, but for those safe deposit boxes that store important documents or financial items, not only require good anti-theft performance, but also require two people to be present at the same time to open the lock. Existing safe deposit boxes Due to the complex structure of the lock cylinder, it is necessary to manufac

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