Blade fixing structure easy to disassemble and assemble

The utility model discloses a blade fixing structure easy to disassemble and assemble, which comprises a rotary blade shaft body and mounting seats, the mounting seats are fixedly mounted at the left end and the right end of the rotary blade shaft body, the fixing seats are arranged on the periphery of the outer side surface of the rotary blade shaft body at equal intervals in a circumferential array manner, and blades are respectively arranged at the right ends of the fixing seats. Positioning rods are arranged in the middle of the right side of the fixing base in a front-back symmetry mode, mounting holes formed in the blades are movably formed in the outer sides of the positioning rods respectively, inclined faces are arranged at the front ends of the bottoms of the blades respectively, and fixing units are arranged below the inclined faces respectively. And meanwhile, the driving block is arranged at the front end of the threaded rod, so that the situation that the adjacent blade interferes with the hand