Laminated slab bottom plate with steel bar telescopic sleeve at plate end

The utility model relates to the technical field of building industrialization, in particular to a laminated slab bottom plate with a steel bar and a telescopic sleeve at the plate end, which comprises a laminated slab bottom plate body and the telescopic sleeve, one end of the sleeve is connected with a support through an anchoring steel bar, and the other end of the sleeve is connected with the end of a stressed steel bar of the laminated slab bottom plate body. The sleeve, the anchoring steel bar and the stressed steel bar are concentrically arranged; the anchoring steel bar is connected with the inner wall of the cavity through an anchoring steel bar limiting plug, and the anchoring steel bar limiting plug is in threaded connection with the inner wall of the cavity; the anchoring steel bars are in sliding connection with the inner wall of the cavity; during transportation or hoisting, the anchoring steel bars are partially retracted into the cavities, and the anchoring steel bars extend out of the sleeves