Vehicle-mounted radiation monitoring device

The utility model discloses a vehicle-mounted radiation monitoring device, which comprises a radiation monitoring device, a support plate and protection mechanisms, the radiation monitoring device is arranged at the top of the support plate, and the protection mechanisms are arranged below and on two sides of the support plate; the protection mechanism comprises a base, a fixing plate and a fixing block, a second sliding groove is formed in the inner top of the base, first springs are fixedly installed on the two side walls of the interior of the second sliding groove, second sliding blocks are fixedly installed on the opposite sides of the first springs, and connecting rods are hinged to the tops of the second sliding blocks; the upper ends of the connecting rods are hinged to the two sides of fixing blocks, the fixing blocks are fixedly installed at the bottoms of supporting plates, damping shock absorbers are fixedly installed at the positions, located on the two sides of the fixing blocks, of the bottoms