Movable protection platform for bridge construction

The utility model relates to the technical field of bridge construction, in particular to a movable protection platform for bridge construction, which comprises a bottom plate, two fixing plates are fixedly connected onto the bottom plate, first sliding grooves are formed in the fixing plates, first sliding blocks are slidably connected into the first sliding grooves, and first screw rods are rotatably connected into the first sliding grooves. The first screw rod is in threaded connection with the first sliding block, a driving groove and two connecting grooves are formed in the bottom plate, a first motor is installed on the bottom plate, the output end of the first motor penetrates through the bottom plate and extends into the driving groove, and the output end of the first motor is fixedly connected with a first bevel gear; the first bevel gear is meshed with two second bevel gears, the second bevel gears are fixedly connected with connecting rods, one ends of the connecting rods penetrate through the bott