Engineering safety monitoring and early warning device

The utility model belongs to the field of monitoring and early warning devices. The engineering safety monitoring and early warning device comprises a base, an existing engineering safety monitoring and early warning device is single in monitoring position. Monitoring range reduction, and the early warning effect is poor. Proposed now is the following scheme, the device comprises two mounting plates, the same connecting plate is fixedly mounted on the sides, close to each other, of the two mounting plates; two fixing holes are formed in the top of the connecting plate; moving seats are mountedin the two fixing holes in a sliding manner; gas detectors are fixedly installed at the tops of the two moving seats, coal detectors are fixedly installed at the bottoms of the two moving seats, threaded holes are formed in one sides of the two moving seats, lead screws are installed in the two threaded holes in a threaded mode, and the two ends of each lead screw are rotationally installed on the inner walls of the two