Anti-theft lock body with enhanced lock tongue structure

Abstract

The invention relates to a lock body of a door lock, in particular to an anti-theft lock body with an enhanced lock tongue structure. The anti-theft lock body comprises a lock shell, a driving mechanism contained in the lock shell, and an oblique lock tongue capable of locking a door leaf; the oblique lock tongue comprises a rod body part and a head part arranged at the front end of the rod body part and provided with an oblique plane; and the driving mechanism is capable of dragging the head part of the oblique lock tongue to protrude or retract in an opening part formed on one side wall of the lock shell. The anti-theft lock body is characterized in that a connecting column is arranged at the tail end of the head part of the oblique lock tongue; the connecting column and the head part of the oblique lock tongue are integrally molded; the rod body part comprises a platy top wall; a central hole is arranged at the central position of the top wall; and the connecting column penetrates through the central hole and is connected to the top wall. As the anti-theft lock body has the characteristics and advantages, the anti-theft lock body can be applied to a lock body structure.

Description

technical field [0001] The invention relates to a lock body of a door lock, in particular to an anti-theft lock body with a reinforced lock tongue structure. Background technique [0002] In the existing technology, such as figure 1 , figure 2 , image 3 and Figure 4 As shown, the lock body 1 of the door lock includes a lock housing 11, a driving mechanism 2 arranged in the lock housing 11, and an oblique lock tongue linked with the driving mechanism. An opening 10 is provided on one side of the lock housing 11 , and the oblique lock tongue can protrude from the opening 10 under the drive of the driving mechanism 2 so as to close the door leaf. The oblique bolt includes a head portion 3 with an inclined surface and a rod body portion 4 . [0003] The structure of the oblique bolt, the most common structure is, wherein such as figure 1 As shown, the rod body 4 of the oblique bolt is in the shape of a rod body and is thermally extruded and connected with the head 3, th...

AI Technical Summary

Problems solved by technology

from Figure 4 It can be seen that since the cross-section of the connecting column 5 is provided with a positioning hole 51, the residual wall of the connecting column 5 at the cross-section of the maximum diameter of the positioning hole 51 is very small, so that its structural strength is greatly improved. reduce, the connecting column 5 is very easy to break at the position where the positioning hole 51 is provided

There is also a technical solution to set the positioning hole 51 on the connecting column 5 as a blind hole. Although the structural strength at the positioning hole 51 is partially improved, the connecting column 5 is still easy to break

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