Monitoring alarm system

The utility model relates to the technical field of monitoring and alarming, in particular to a monitoring and alarming system which comprises a sealing box, a rotating shaft is movably connected in the sealing box, a gear is fixedly connected to the outer surface of the rotating shaft, a sliding plate is movably connected in the sealing box, a rack is fixedly connected to one side of the sliding plate, and the rack is fixedly connected to the other side of the sliding plate. The rack is movably connected to one side of the gear, the top of the sealing box is movably connected with a rotating disc, and the top of the rotating disc is fixedly connected with a connecting plate. By arranging the turntable, arranging the connecting plate at the top of the turntable, and movably connecting the mounting plate and the connecting plate through the connecting shaft, when the display screen is watched, the first air cylinder is started, the piston rod pushes the mounting plate, the mounting plate rotates, the vertical