Making-free key and safe lock

Abstract

The invention provides a making-free key including a key body extending in the left and right direction. A containing cavity is formed in the key body, and a plurality of through-holes are formed in the upper cavity wall of the containing cavity from left to right. A plurality of secret keys in one-to-one correspondence with the through-holes and a plurality of coding blocks are arranged in the containing cavity. The coding blocks are located between the secret keys and the lower cavity wall of the containing cavity. The number of the multiple coding blocks is greater than the number of the secret keys, and the heights of the coding blocks are different. The heights of the top ends, stretching out of the through-holes, of the secret keys are different according to the different heights ofthe coding blocks abutting against the secret keys. Because the stretching-out heights of the secret keys are controlled by the coding blocks, users can buy the coding blocks, the secret keys and thekey body to assemble by themselves, and a lot of unsafe factors caused by the users giving the keys to strangers can be avoided. The invention also provides a safe lock, and an existing lock is remolded by the safe lock to achieve the function of preventing same keys.

Description

technical field [0001] The invention relates to the field of locks, in particular to a key without matching and a safety lock. Background technique [0002] To match a new key, it is often necessary to go to a small street shop outside to make it. However, handing over the keys related to one's own property to a stranger, and a stranger who has the ability to distribute the keys, is a very heavy psychological burden, and if you encounter some criminals, it is easy for the keys to be copied illegally, giving Property poses a very large security risk. Especially in some safes or warehouses where important and expensive items are placed, cases of people who have access to the keys copying a key for theft occur from time to time. [0003] The existing tumbler lock can be unlocked by bumping the key or hooking the tumbler with a hook, which makes the tumbler lock very unsafe. Contents of the invention [0004] The technical problem to be solved by the present invention is to...

AI Technical Summary

Problems solved by technology

However, handing over the keys related to one's own property to a stranger, and a stranger who has the ability to distribute the keys, is a very heavy psychological burden, and if you encounter some criminals, it is easy for the keys to be copied illegally, giving Property poses a very large security risk

Especially in some safes or warehouses where important and expensive items are placed, there are cases where people who have access to the keys copy a key and use it for theft.

[0003] The existing pin lock can be unlocked by bumping the key or hooking the pin with a hook, which makes the pin lock very unsafe

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