Door lock latch

The utility model relates to the technical field of hardware locks, and discloses a door lock bolt. A first sliding rail is arranged on the outer wall of a fixed sleeve of the door lock latch; the first sliding rail spirally extends around the center axis of the fixed sleeve, a sliding block is arranged on the inner wall of the lock tongue sleeve, is embedded into the first sliding rail and can move along the first sliding rail along with the relative rotation action of the fixed sleeve and the lock tongue sleeve so as to adjust the edge center distance of the door lock tongue, and the lock tongue sleeve covers the first sliding rail. By means of the mode, the smoothness degree of the edge center distance adjusting process of the door lock latch can be improved, and the product appearanceof the door lock latch can be improved. 本实用新型涉及五金锁技术领域，公开了一种门锁锁利。该门锁锁利的固定套筒的外壁上开设有第一滑轨，第一滑轨绕固定套筒的中心轴呈螺旋状延伸，锁利套筒的内壁上设有滑块，滑块嵌入于第一滑轨中，并能够随固定套筒和锁利套筒相对转动的动作沿第一滑轨移动，以调整门锁锁利的边心距，锁利套筒覆盖第一滑轨。通过上述方式，本实用新型能够改善门锁锁利边心距调节过程的顺畅程度以及改善门锁锁利的产品