Locking structure and door and window

The utility model provides a locking structure and a door and window, the locking structure comprises a first locking part and a second locking part, the first locking part comprises a carrier part and a clamping part connected with the carrier part, the second locking part comprises an adapter part and a limiting part, the limiting part is connected with the adapter part, the limiting part is arranged on the adapter part at an interval to form a limiting groove, and the clamping part is connected with the carrier part. And the limiting groove is used for being clamped with the clamping part, so that the sliding risk occurring when the door leaf is clamped is reduced. 本申请提供一种锁合结构以及门窗，包括第一锁合部以及第二锁合部，第一锁合部包括载体部以及与载体部连接的卡接部，第二锁合部包括转接部以及限位部，限位部与转接部连接，且限位部间隔设置于转接部上以形成限位槽，限位槽用于与卡接部卡合，以降低门扇卡合时出现滑动的风险。