Mechanical key unlocking mechanism

Abstract

The invention discloses a mechanical key unlocking mechanism. The mechanical key unlocking mechanism comprises a lock housing, a deadbolt, a latch bolt and a lock cylinder, wherein a deadbolt plate isarranged on the side, facing the inside of the lock housing, of the deadbolt; a deadbolt stirring plate meshed with an inner stirring plate is arranged on the deadbolt plate; a pin is fixedly arranged on the lock housing; the deadbolt plate and the deadbolt stirring plate are coaxially arranged through the pin; a sliding groove formed in a transverse direction of the locking housing is formed inthe deadbolt plate; the pin is arranged in the sliding groove; when the inner stirring plate rotates, the deadbolt stirring plate is driven to rotate and the deadbolt plate is driven to transversely shift toward the inner side of the lock housing along the sliding groove; a limiting pin is further arranged on the deadbolt stirring plate; a limiting groove that matches the limiting pin in a slidingmanner is formed in the deadbolt plate; and when the deadbolt plate transversely shifts along the lock housing, the limiting pin moves along the limiting groove. The mechanical key unlocking mechanism has the following beneficial effect: since the pin and the limiting pin are arranged, and the sliding groove and the limiting groove are formed in the deadbolt plate, the mechanical key unlocking mechanism is simplified.

Description

technical field [0001] The invention relates to the field of locks, in particular to a mechanical key unlocking mechanism. Background technique [0002] The locks currently on the market include electronic locks and mechanical locks. Usually, they are equipped with a mechanical key unlocking mechanism inside the door. It is necessary to insert the mechanical key into the lock cylinder and turn the dial of the lock cylinder to drive the square tongue and oblique tongue back from the lock groove to the lock housing, so as to realize the door opening. However, the setting of the mechanism parts for controlling the mechanical key to unlock is relatively complicated and costly. Troublesome maintenance. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a mechanical key unlocking mechanism with simple structure and reliable operation. [0004] In order to solve the above-mentioned technical problems, the present inventi...

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Problems solved by technology

[0002] The locks currently on the market include electronic locks and mechanical locks. Usually, they are equipped with a mechanical key unlocking mechanism inside the door. It is necessary to insert the mechanical key into the lock cylinder and turn the dial of the lock cylinder to drive the square tongue and oblique tongue back from the lock groove to the lock housing, so as to realize the door opening. However, the setting of the mechanism parts for controlling the mechanical key to unlock is relatively complicated and costly. troublesome maintenance

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