Gas monitoring device for hazardous chemical substance storage

The utility model relates to the technical field of monitoring devices, in particular to a gas monitoring device for hazardous chemical substance storage, which comprises a workbench, a movable box is arranged at the top of the workbench, a bearing plate is arranged at the top of the movable box, and a gas monitoring body is arranged at the top of the bearing plate. Alarms are arranged on the two sides of the surface of the gas monitoring body, clamping grooves are formed in the tops and the bottoms of the two sides of the gas monitoring body, a positive and negative screw rod is arranged in an inner cavity of the bearing plate in a sleeving mode, the right side of the positive and negative screw rod penetrates through and extends to the right side of the bearing plate, and a rotating plate is arranged on the right side of the positive and negative screw rod; and the positive and negative threaded surfaces of the positive and negative screws are in threaded connection with threaded sleeves. According to the h