Split lock action mechanism

Abstract

The invention discloses a split type latch action mechanism. The split type latch action mechanism comprises a shell (1), an upper latch (3), a main latch (7), a lower latch (9), a latch linkage plate (4) and a main reset driving plate (5). An upper latch guide pin (21), a main latch guide pin (13), a lower latch guide pin (11) and a driving plate rotating pin (17) are arranged in the shell (1), the upper latch (3) is arranged on the upper latch guide pin (21), the main latch (7) is arranged on the main latch guide pin (13), the lower latch (9) is arranged on the lower latch guide pin (11), the latch linkage plate (4) is fixed to the main latch (7), and the two ends of the latch linkage plate (4) are embedded into connecting limiting grooves (25) in the upper latch (3) and the lower latch (9). The main reset driving plate (5) is arranged on the driving plate rotating pin (17) and provided with a driving limiting pin (22) which is matched with a driving limiting groove (24) of the main latch (7) and drives the main latch (7) to slide. By the adoption of the structure, the split type latch action mechanism has the advantages of being simple and reasonable in structure, flexible and convenient to operate, high in shock resistance and the like.

Description

technical field [0001] The invention relates to the technical field of an anti-theft lock, in particular to a split-type locking bolt action mechanism of an anti-theft lock. Background technique [0002] Most of the lock bolts of anti-theft door locks on the market currently have a lock bolt plate fixed between the lock heads (or lock cylinders) by riveting or welding to form a lock bolt auxiliary structure. And two riveted pins are arranged on the lock bolt plate to push the upper and lower heaven and earth rods and drive the upper and lower heaven and earth rods to move together. Its shortcoming lies in: during the riveting process of multiple lock bolts and the lock bolt plate, the multiple lock bolts may not be parallel in the expansion and contraction direction, causing the lock bolt pair to move poorly in the housing; When slight deformation caused by shearing force, due to the integrated lock pair structure, the slight deformation on the individual lock bolts may aff...

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the deficiencies in the prior art, the invention proposes a split lockbolt action mechanism, the purpose of which is to reduce the phenomenon of poor opening and closing of the door lock caused by slight deformation of one or more lockbolts, and at the same time reduce the opening and closing process. The loss of medium energy makes the operation feel better and the lock bolt has better impact resistance

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