Grabbing device used for medium-low-radioactivity waste barrels

The invention relates to a grabbing device used for medium-low-radioactivity waste barrels, and the grabbing device comprises a main support, a grabbing motor lead screw, a transmission nut disc and a plurality of single-claw components, wherein the grabbing motor lead screw is fixed in the center of the main support, the transmission nut disc is screwed with the grabbing motor lead screw through a thread, and moves vertically under the rotation driving of the grabbing motor lead screw, and the plurality of single-claw components are radially connected with the transmission nut disc and the main support; the grabbing motor lead screw rotates to drive the transmission nut disc to move vertically, and the plurality of single-claw components are pulled to synchronously concentrically fold or eccentrically unfold, uniform-stress non-destructive clamping or placement of the medium-low-radioactivity waste barrels is realized by a multi-claw mechanism, and automatic centering of the integral grabbing device to the m