Handle lock having cipher lock hole protector

Abstract

The invention relates to a hand lock with code lock pore protector. There is a slide channel at the bullet lock pore position of outer covering plate and the code lock pore protector is embedded on the slide channel. The code lock pore protector has a lock core cover embedded on the slide channel of outer cover plate and there is a rotating wheel code lock at the outer side of lock pore cover. The code lock has a circular shift ring, comprising circular isolating ring, circular middle ring and lock shaft in turn. In the code lock there are shift claw, half pore and rolling ball matched with each circular ring to constrain the lock shaft in double step. The constraint to code lock can be unlocked by two numbers to open the lock pore cover and show the lock pore of bullet lock up and the bullet lock is opened by key. There is the lock pore cover for the lock pore of bullet lock on the outer cover plate to protect the lock pore of bullet lock so that it is not easy to unlock the bullet lock by extending tools into the lock pore and stop the lock pore by slipping objects into the lock pore so as to make the hand lock safer.

Description

technical field [0001] The invention relates to a handle lock, in particular to a key hole protector of the handle lock. Background technique [0002] As a door lock, the handle lock is generally used to be installed on the passage door where people often enter and exit the building. Because of its beautiful appearance and convenient use, the handle lock is more and more used for civilian living room doors, interior doors, office doors, etc. . The handle lock has a flat lock box, a lock body inside the flat lock box, a pin lock on the outside of the lock body, strip-shaped inner and outer cover plates on both sides of the flat lock box, and inner and outer handles on the inner and outer cover plates. There is a lock hole for a tumbler lock on the outer cover. In the prior art, there is no protective device on the lockhole on the outer cover plate of the handle lock, and the lockhole is open. Because the keyhole on the outer cover plate of this kind of handle lock is open,...

AI Technical Summary

Problems solved by technology

Since the keyhole on the outer cover plate of this handle lock is open, it is not only easy for people to insert tools from the keyhole to pry the tumbler lock open, but also for people to insert foreign matter from the keyhole to block the keyhole. The lock cannot be opened with a key, so the security performance is not good

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