Self-triggering type anti-picking mute lock

Abstract

The invention discloses a self-triggering type anti-picking mute lock. The self-triggering type anti-picking mute lock comprises a lock cover (01), a lock shell (44), an inclined bolt fixed point triggering device, a lock bolt pair with a side sliding lock head, a shifting shaft driving device, a mute speed reducing device, a lock point linkage device, an inner safety mechanism, an anti-picking locking mechanism and a comprehensive limiting plate (34). The self-triggering type anti-picking mute lock is characterized in that the inclined bolt fixed point triggering device, the lock bolt pair with the side sliding lock head, the inner safety mechanism and the anti-picking locking mechanism are linked with the comprehensive limiting plate (34), the lock bolt pair with the side sliding lock head is linked with the lock point linkage device, the shifting shaft driving device is in linkage with the inclined bolt fixed point triggering mechanism and the lock point linkage device, the inclinedbolt fixed point triggering device is used for achieving automatic locking by touching all lock points of an inclined bolt by opening a door, the shifting shaft driving device drives the inclined bolt and the lock point linkage device to achieve the action of unlocking and opening the door, and the anti-picking locking mechanism is an anti-theft protection device for violence picking of an outerhandle assembly.

Description

technical field [0001] The invention relates to an anti-theft lock, in particular to a self-triggering anti-prying silent lock. Background technique [0002] The anti-theft locks currently on the market basically have a functional structure that includes a bolt, a main bolt, an auxiliary bolt, an inner bolt, and a heaven and earth rod. The current situation and existing problems are as follows. [0003] 1. The essence of the inner lock function is to prevent outdoor unlocking from the inside through the inner lock mechanism or to avoid the trouble of frequent closing and locking in public areas, but in terms of safety performance, the strength of the inner lock is far inferior to that of the main lock and auxiliary locks. In the emerging self-triggering anti-theft lock application era, the lock points including the main lock bolt, auxiliary lock bolt and sky and earth lever are automatically locked after the door is closed, the necessity of the existence of the inner lock bo...

AI Technical Summary

Problems solved by technology

[0003] 1. The essence of the inner lock function is to prevent outdoor unlocking from the inside through the inner lock mechanism or to avoid the trouble of frequent closing and locking in public areas, but in terms of safety performance, the strength of the inner lock is far inferior to that of the main lock and auxiliary locks. In the emerging self-triggering anti-theft lock application era, the lock points including the main lock bolt, auxiliary lock bolt and sky and earth lever are automatically locked after the door is closed, the necessity of the existence of the inner lock bolt is greatly reduced, and the inner lock The bolt also occupies a part of the space of the lock body, which increases the cost and restricts the design of the lock body

[0004] 2. In the conventional structural design of the anti-theft lock, the oblique tongue is generally located in the upper part of the entire lock body, and the corresponding main lock device can usually only be used for one. In order to improve the shape and anti-theft performance, auxiliary locks such as rotating lock rings are added. On the one hand, the size of the lock body is greatly increased, on the other hand, the number of parts is increased, resulting in an increase in the cost of molds, materials, and labor

[0005] 3. Conventional self-triggering anti-theft locks are easy to accidentally touch the bolt, causing the bolt to trigger automatically, and the bolt hits the door frame when the door is closed; or due to the gap between the doors, the trigger stroke is not enough to trigger the bolt to lock.

[0006] 4. A considerable number of electronic locks usually use instructions to drive the motor to control the movement of the outer handle, which leads to the fact that once the outer handle assembly is pried, it can be easily unlocked by turning it directly to the dial shaft of the lock body, which has a very high potential safety hazard

[0007] 5. Conventional anti-theft locks use torsion springs or compression and tension springs as the driving or reset force. Firstly, the number of springs used is large, and secondly, the rotation force of the handle caused by the springs is also increased.

[0008] 6. The lock bolt of the main lock body and the lock bolt of the auxiliary lock body are often difficult to use in common, resulting in more molds and increased manufacturing costs such as assembly. It is difficult to share a modular lock mechanism between different manufacturers and different lock bodies

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