Aluminum alloy sliding door sliding block

The utility model relates to an aluminum alloy sliding door sliding block which comprises a base, a sliding rail assembly is arranged on the top of the base, a sliding block assembly is arranged in the sliding rail assembly, an anti-collision assembly is arranged on the front face of the sliding block assembly, and the sliding rail assembly comprises an outer rail fixedly installed on the top of the base. An inner rail is fixedly installed on the inner bottom wall of the outer rail, sealing plates are movably installed on the two sides of the outer rail, an air nozzle is fixedly installed on the right side of the outer rail, and slag outlets are formed in the two sides of the outer rail. According to the aluminum alloy sliding door sliding block, when the outer rail is filled with a large amount of impurities and needs to be cleaned, the wheel frames are moved to the reserved notches of the closing plates, then the two closing plates are combined to enable the interior of the outer rail to form a closed space