Window lock

The utility model discloses a window lock. The lock comprises a spring bolt, a spring bolt seat, a lock cylinder, a handle block and a limiting block, the spring bolt base is provided with a spring bolt installation cavity and a lock cylinder installation cavity. The spring bolt is mounted in the spring bolt mounting cavity; the lock cylinder is mounted in the lock cylinder mounting cavity and canrotate in the lock cylinder mounting cavity; the limiting block is arranged on the spring bolt and corresponds to the lock cylinder. The handle block is arranged on the spring bolt base and located outside the spring bolt installation cavity and the lock cylinder installation cavity, the handle block is fixedly connected with the spring bolt and can pull the spring bolt to move in the spring boltinstallation cavity, the lock cylinder rotates to abut against or be separated from a limiting block on the spring bolt, and when the lock cylinder abuts against the limiting block, the spring bolt is locked and cannot be pul