IN-MINE-SHAFT SEISMIC MONITORING DEVICE

The invention relates to the technical field of earthquake monitoring equipment, and discloses an earthquake monitoring device in a mine, which comprises an L-shaped screw rod, the L-shaped screw rod is fixedly mounted at the center of the bottom of a protective lower shell through a threaded hole, the interior of the protective lower shell is hollow, and a thread is arranged on the inner side wall of the upper end of the protective lower shell and used for fixedly mounting a protective cover. A vibration pickup sensor is installed in the middle of the protective cover, and a first sliding rail and a second sliding rail are fixedly installed on the bottom face of the protective cover. By arranging the protection shell and the protection cover, rapid replacement of the sensor is achieved, meanwhile, the sensor is separated from the external high-temperature and high-humidity environment, meanwhile, the flexible pipeline is arranged on the protection cover, and when the whole device is in an inclined state, due to the fact that the universal ball can rotate, under the action of earth gravity, the sensor can be rapidly replaced. The flexible pipeline can automatically adjust the sensor to be perpendicular to the ground, and therefore the leveling effect is achieved.