Pinhole type lock body structure and changeable key structure

Abstract

The invention belongs to the technical field of security equipment, and discloses a pinhole type lock body structure and a changeable key structure. The lock body structure is unlocked through an outer keyhole and an inner keyhole by means of a plug-in structure, an unlocking key variable of the lock body is changed from an internal structure in a key hole into the key needle entering quantity, only when a key needle pushes a code push block to move by a specific distance, the contact surface of a locking block and the code push block can be overlapped with the communication surface of the outer keyhole and the inner keyhole, unlocking is achieved accordingly, and thus the safety and reliability of the lock body structure are higher. According to the key structure, multiple unlocking key pin layout schemes can be provided on the one key structure by combining a variable needle disc and key needle structure, and only a specific layout solution can unlock a corresponding door leaf. Therefore, when a person not being an owner holds the key, the lock body cannot be directly unlocked. The key structure increases the protection performance of a mechanical lock and increases the reliability of the mechanical lock. Therefore, the pinhole type lock body structure and the changeable key structure are suitable for general use.

Description

technical field [0001] The invention belongs to the technical field of security equipment, and in particular relates to a lock core and a key structure, in particular to a pinhole lock body structure and a convertible key structure. Background technique [0002] As a safety tool, locks have been widely used in all aspects of people's life and work, such as daily households, industrial production, and office work. Its function is to seal or lock important items and areas, and only through specific personnel can they be opened. [0003] Existing locks mainly include electronic locks and mechanical locks. Among them, electronic locks use technologies such as electricity, magnetism, and networks to control the lock bolts. In view of the fact that they cannot work when the power is off and are susceptible to magnetic interference, they can cause misoperation. Therefore, there are unstable factors in the application of electronic locks, and its reliability is still criticized by m...

AI Technical Summary

Problems solved by technology

[0005] The actual situation is that people often lose the key inadvertently, resulting in the inability to unlock the lock, and can only be unlocked by destroying the lock body or the door body. As a result, the lock cannot be used any longer, and people have to replace the lock cylinder; In some cases, there is a keyhole on the lock body, and the structure inside the lock cylinder may leak through the keyhole; therefore, criminals can understand the internal lock cylinder by observing the keyhole, and can simulate the structure of the key, so that they can use special tools to lock open

[0006] Therefore, existing mechanical locks also have reliability problems, and people cannot ensure safety by using mechanical locks.

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