Sponge polishing wheel convenient to install

The utility model discloses a sponge polishing wheel convenient to install, and relates to the technical field of polishing wheels, the sponge polishing wheel comprises a hub and a transmission rod, the hub is movably connected to the outer surface of the transmission rod, a convenient disassembly and assembly assembly is arranged in the hub, and a reinforcing assembly is arranged on the outer surface of the transmission rod. The assembly convenient to disassemble and assemble comprises a clamping block arranged on the inner side of the hub in a penetrating mode, a cavity is formed in the inner side of the hub, a spring is arranged in the cavity, and a sliding groove is formed in the outer surface of the hub. The clamping blocks are aligned with the guide grooves to push the hubs to move, the clamping blocks abut against the outer surfaces of the transmission rods to retract into the cavities and extrude the springs, when the hubs move to the outer surfaces of the clamping grooves, the springs stretch to push