Refining screening mechanism of RAP

The utility model relates to the technical field of screening, in particular to an RAP fine screening mechanism which comprises a collecting box, a rectangular frame is arranged above the collecting box, a screening net is embedded in an inner cavity of the rectangular frame, sliding blocks are fixedly installed at the ends of the two sides of the rectangular frame, and the sliding blocks are connected with the collecting box. And a discharging pipe is fixedly mounted at the lower part of the side end of the collecting box. According to the RAP screening device, a connecting block slides in a sliding groove through rotation of a push rod, a connecting rod reciprocates in the horizontal direction, a rectangular frame can be driven to reciprocate through reciprocating motion of the connecting rod, RAP can be screened, the screening efficiency is higher, the size of the screened RAP is 0-3 mm, the RAP is stored in a collecting box, and the RAP is not prone to falling off. And the sliding rods movably penetrate t