Lock with sounding oscillation alarm

The utility model relates to a drawer lock, particularly a lock with a knocking oscillation alarm. The utility model comprises the drawer lock with a long lock bolt, a vibration sensor, a casing of the vibration sensor and an alarm, wherein, the vibration sensor is an electronic vibration sensor and can also be a mechanical vibration sensor, the vibration sensor is installed at the back surface of the drawer lock, and the alarm is composed of an electronic alarm triggering time delay circuit, an alarm sound generating circuit IC and a loudspeaker SP. When the utility model is knocked by a person, the sensor can be impacted, and the alarm can send out an alarm sound. The utility model has the advantages of simple circuit, reliable work and low cost. The utility model can be assembled on a strong box, a writing table, a file cabinet, a door or a window; thus, the purpose of the anti-theft alarm is realized.