Portable nuclear alarm

The utility model discloses a portable nuclear alarm, which comprises a shell, a handle, a rotating shaft, a display screen, a nuclear radiation sensor, a single chip microcomputer, an alarm lamp, a buzzer, a lithium battery, a keyboard plate, a hinge, a rear cover, a transparent plate, a silica gel plate, an arc-shaped plate, antiskid lines, a spring, an inner cavity, a connecting belt, a buckleand a groove. The utility model has a reasonable structure, silica gel plates are fixedly connected to the eight corners of the bottom and the eight corners of the top of a shell. Therefore, the shellis protected, through the arc-shaped plates connected among the four silica gel plates in a relatively sliding mode and the anti-skid lines at one ends of the arc-shaped plates, hand holding and operation are convenient, through the arc-shaped plates elastically connected with the shell through the springs, the shell is prevented from being collided and damaged, and through the handle rotationally connected with the rotat