Keyless Mechanical Combination Lock

Abstract

The invention relates to anti-theft facilities, belongs to mechanical locks, and discloses a key-free mechanical coded lock. The key-free mechanical coded lock solves the problems that a mechanical coded lock cannot be used independently, the code combination quantity is small, and technical unlocking is hard to resist. According to the technical scheme, screws are adopted as a drive source and a driven body of the mechanical coded lock; the number of screw holes (in patterns 1-3) in blades is increased, that is, the code combination quantity is increased; the shapes of an initial drive blade (1-1), an initial drive blade (1-2) and an initial drive blade (1-4) are improved so that a lower spring pin can be pushed to lift the blades, and the aim of locking a lock plunger is achieved; the angle of the lower spring pin is improved to be about 94 degrees, the chance of contact between the lower spring pin and the blades is reduced, and therefore technical unlocking is resisted; the combination of an upper spring pin, a spring and the lower spring pin is used for locking the lock plunger and enabling the coded lock to be in the closed state at any time; and the mechanical coded lock and a wrench are combined to open a lock. The key-free mechanical coded lock can serve as a home-entry door lock, a warehouse door lock, a safety box door lock and a vault door lock.

Description

【Technical field】 [0001] The invention relates to anti-theft facilities, belonging to mechanical locks. 【Background technique】 [0002] In today's world, the code changes of mechanical coded locks are relatively simple, basically relying on the secrecy and security of the codes. Once someone knows it and understands the changing law of mechanical coded locks, he can basically grasp the range of its codes, so that he can Open this mechanical combination lock in a very short period of time, so this mechanical combination lock has also just lost its due effect, and at this moment the safety of the property it protects has basically just relied on the protective ability of other locksets. The current mechanical combination locks are basically used in conjunction with built-in locks (including cross key built-in locks, one-word key built-in locks and other built-in locks), but as mechanical combination locks, they cannot be used alone as protective locks. There are also mechanica...

AI Technical Summary

Problems solved by technology

The current mechanical combination locks are basically used in conjunction with built-in locks (including cross key built-in locks, one-word key built-in locks and other built-in locks), but as mechanical combination locks, they cannot be used alone as protective locks. There are also mechanical combination locks and built-in locks. The combined anti-theft performance is not too high, it is difficult to resist technical unlocking, and the current door locks are basically difficult to resist the trouble of technical unlocking, in real life, A-level locks are not anti-theft, technical unlocking takes a few seconds It can be opened easily; Class B locks are not tamper-resistant, and can be opened within a few minutes with technical unlocking

If someone secretly prepares your key, then you have no choice but to change the lock. If this happens, our property will not be safe.

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