Automatic anti-theft lock

Abstract

The invention relates to an automatic anti-theft lock and solves the problem of strenuous unlocking in the prior art. According to the technical scheme, a force accumulation component is arranged in amain locking dog assembly, a locking mechanism is in linked cooperation with the force accumulation component, the force accumulation component is enabled to accumulate force, and the force accumulation component drives the main locking dog assembly to be locked under the action of accumulated force; an opening mechanism drives the main locking dog assembly to be retracted inwards so as to realize unlocking, the main locking dog assembly is retracted inwards to be in place and forms braking with a braking component on the opening mechanism, and during braking, the opening mechanism drives a latch bolt of a latch bolt assembly to extend out of a lock box. The automatic anti-theft lock has effects as follows: the locking mechanism drives the force accumulation component on the main lockingdog assembly to accumulate force, the main locking dog assembly and a heaven-earth rod assembly are popped out under the action of the accumulated force on the force accumulation component, and afterthe assemblies are popped out in place, the accumulated force on the force accumulation component disappears; when the lock is opened by the opening mechanism, the accumulated force on the force accumulation component is not required to be resistant, the force accumulation component is not required to accumulate force, and the purpose of labor-saving locking is achieved.

Description

technical field [0001] The invention relates to an automatic anti-theft lock, in particular to a labor-saving automatic anti-theft lock. Background technique [0002] In the existing anti-theft door locks, there are two ways for the main bolt to pop up: the first method is to lock the main bolt and the heaven and earth rod at the same time, and the elastic force acting on the main bolt and the sky and earth rod is very large. The spring that cooperates with the main bolt and the sky-earth lever always has a spring force; when the lock is unlocked, the force acting on the key is the spring force when the key is locked and the force that compresses the spring to drive the main bolt and the sky-earth lever inward by a certain stroke. The force of the key or the handle is not only strong, but also needs to gradually increase the force to open it. It is very laborious. It is difficult for the elderly and children to open it, and the key or the handle is easy to break, which serio...

AI Technical Summary

Problems solved by technology

[0002] In the existing anti-theft door locks, there are two ways for the main bolt to pop up: the first method is to lock the main bolt and the heaven and earth rod at the same time, and the elastic force acting on the main bolt and the sky and earth rod is very large. The spring that cooperates with the main bolt and the sky-earth lever always has a spring force; when the lock is unlocked, the force acting on the key is the spring force when the key is locked and the force that compresses the spring to drive the main bolt and the sky-earth lever inward by a certain stroke. The force of the key or the handle is not only strong, but also needs to gradually increase the force to open it. It is very laborious. It is difficult for the elderly and children to open it, and the key or the handle is easy to break, which seriously affects the use of the lock and increases maintenance and replacement. Cost; the second type is the double locking method. When closing the door, the main bolt will automatically pop out and lock, and then use the key or handle to lock the sky and earth lever to perform the second locking operation. If you forget to use the key or handle when going out If you lock the door with your hand, the heaven and earth rod will not be locked, and the door will be easily opened, and there is a risk of theft

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