Dead-locking control mechanism for door lock

[0029]For clearer descriptions of the objectives, technical solutions, and advantages of the present invention clearer, the present invention is further described hereinafter in detail with reference to the specific embodiments and the accompanying drawings. It should be understood that the descriptions are merely exemplary, but are not intended to limit the scope of the present invention. In addition, in the following description, descriptions of conventional structures and technologies are omitted to avoid unnecessarily confusing the concepts of the present invention.

[0030]Referring to FIG. 1 to FIG. 3, a dead-locking control mechanism for a door lock includes:

[0031]a latch (1): the latch (1) is fixed on a to-be-locked object and is configured to cooperate with an external bore, a bolt (1.2) locking the to-be-locked object after moving in a direction proximal to the bore;

[0032]a spindle assembly-set (2): one end of the spindle assembly-set (2)is detachably linked with and fixedly goi