Efficient grouting and waterproof combined anti-floating structure

The utility model provides an efficient grouting and waterproof combined anti-floating structure which comprises a pressing plate and an anchor rod, the pressing plate is provided with a positioning hole in clearance fit with the anchor rod, the anchor rod is sleeved with a sealing rubber sleeve used in cooperation with the positioning hole, and a sealing plate capable of being separated from the pressing plate and the anchor rod is arranged. A gap is formed in the bottom of the sealing plate and penetrates through a main pouring opening formed in the middle of the pressing plate, concrete can be injected into a pouring space below the pressing plate through the main pouring opening before the anchor rod and the pressing plate are controlled to be connected in a sealed mode, the sealing plate can be installed after pouring is completed, and a detachably-connected sealing rubber sleeve is arranged between the anchor rod and the pressing plate in a sleeved mode. And the installed sealing plate can extrude the s