Over -and -under type radiation protection screen

The utility model discloses an over -and -under type radiation protection screen, including stereotype, stereotype casing, rhombus lifting support, screw rod, crank and landing leg, the stereotype is located in the stereotype casing, the rhombus lifting support be located bottom in the stereotype casing lies in the bottom of stereotype, rhombus lifting support's upper end with sliding connection between the bottom of stereotype, rhombus lifting support's bottom both ends all are provided with the nut, and pass through the nut with the screw rod is connected, the screw thread of equalling divide two sections opposite direction on the screw rod, the screw rod with the crank is connected, the bottom of stereotype casing with the landing leg is connected. Compared with the prior art, the utility model discloses a crank drives the screw rod and rotates, and bottom that opposite direction on the screw rod enabled rhombus lifting support is simultaneously in toward or the removal of both sides to the realization com