Vibration detector

The embodiment of the utility model provides a vibration detector. The vibration detector comprises a detection box body and a detection circuit connected with the detection box body; an electric conduction block, an electric conduction ball and an electric conduction ring are arranged in the detection box body; the electric conduction block is arranged at the inner side of the upper box body of the detection box body through an elastic connecting piece and stays inertial motionless when the detection box body moves upwards; the electric conduction ball is arranged at the inner side of the lower box body of the detection box body and stays inertial motionless when the detection box body performs movement except upwards movement, and the electric conduction ball contacts with the electric conduction block when the detection box body moves upwards, so that the detection circuit can be triggered; and the electric conduction ring is arranged at the inner side of the upper box body of the detection box body, and the electric conduction ring contacts with the electric conduction ball when the detection box body performs movement except upwards movement, so that the detection circuit can be triggered. According to the vibration detector of the utility model, the detection circuit can be triggered through the electric conduction block and the electric conduction ball, so that the sensitivity of vibration detection can be improved; and when the detection circuit is not triggered, the whole detection circuit is in a low-energy consumption state, and therefore, the energy consumption of the vibration detector is low.