Spherical mechanical code lock

Abstract

The invention belongs to the technical field of door locks and specially relates to a spherical mechanical code lock. The spherical mechanical code lock comprises an internal handle, an external handle and a square core, wherein one end of the square core penetrates through an internal fixing plate and is connected to the internal handle; a clutch component is formed at the other end of the squarecore; the clutch component penetrates through a handle connecting piece, extends into the external handle and is connected with a code wheel; a groove capable of forming linkage with the clutch component is formed ion the handle connecting piece; an annular gap is formed in the end surface of the handle connecting piece; a square core projection capable of abutting against the annular gap is formed at the periphery of the square core; a fixing projection is formed on the end surface of the internal fixing plate; and a locating groove matched with the fixing projection is formed in the end surface of the internal handle. The spherical mechanical code lock does not need to be opened by a key; the whole structure of the product is a mechanical structure; the manufacturing cost is low; and moreover, the door lock can be opened without inputting a code in the case of not being double-locked.

Description

technical field [0001] The invention belongs to the technical field of door locks, in particular to a spherical mechanical combination lock. Background technique [0002] The spherical door lock is a kind of door lock whose inner and outer handles (lock handles) are spherical and are used to be installed on wooden doors, steel doors, aluminum alloy doors and plastic doors. [0003] Spherical door locks are mostly used for indoor doors. Traditional spherical door locks require a key to open the outer handle when the inner handle is locked. Therefore, when the inner door is locked, you need to find the key when entering the house. Under normal circumstances, once the inner handle is locked, it becomes quite troublesome to find the key. [0004] In order to improve the above situation and respond to the corresponding market demand, a spherical combination lock has also emerged on the market. Its principle is similar to that of the intelligent combination lock of the entrance d...

AI Technical Summary

Problems solved by technology

[0005] However, due to the high cost of such spherical locks equipped with electronic combination locks, the frequency of use of interior doors is relatively low, and it is relatively troublesome to require a password every time the door is opened.

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