| 摘要 |
<p>A latch bolt assembly of a mortise lock. The mortise lock comprises a bottom shell (1), a lining board (2) is fixedly mounted on the outer side face of the bottom shell (1); a latch bolt (3) is telescopically mounted on the bottom shell (1), and the outer end of the latch bolt (3) can penetrate out of the lining board (2); the inner end of the latch bolt (3) is connected with a latch bolt pulling plate (5); the bottom shell (1) is provided with a first elastic piece (6), and an outward acting force is exerted on the latch bolt pulling plate (5) by the first elastic piece (6); the latch bolt (3) is in rotatable fit with a small bolt (4), and the small bolt (4) abuts against a small bolt trigger piece (7); an acting force is exerted on the small bolt trigger piece (7) by a second elastic piece (8) arranged on the latch bolt pulling plate (5), enabling the small bolt (4) to protrude out of the inclined surface of the latch bolt (3); the small bolt trigger piece (7) is provided with a first supporting part (7-4) and a second supporting part (7-3); the latch bolt pulling plate (5) is provided with a sliding type trigger plate (9) and a third elastic piece (10); the trigger plate (9) is supported on the first supporting part (7-4) of the small bolt trigger piece (7), and the trigger plate (9), after being disengaged from the first supporting part (7-4), slides under the acting force of the third elastic piece (10) until the trigger plate (9) is supported on the second supporting part (7-3) of the small bolt trigger piece (7). The latch bolt assembly is used for triggering a deadbolt (21), is reliable during the trigger process, and completely avoids the phenomenon that the deadbolt (21) collides with other parts.</p> |
