Mechanical pipe cleaning device

The utility model relates to a mechanical pipe cleaning device, and belongs to the technical field of pipeline cleaning equipment. The utility model relates to a high-efficiency scraping device, which comprises a front centralizer, a rear centralizer, a scraping cylinder and impellers, the front centralizer is mounted on a flange at the front end of the scraping cylinder, the rear centralizer is mounted at the rear end of the scraping cylinder through a universal joint, and the impellers are correspondingly mounted on the front centralizer, the rear centralizer and the scraping cylinder. The scraping mechanism is always kept in the middle position in the oil conveying pipe, so that the inner wall of the oil conveying pipe can be conveniently scraped and cleaned; through cooperation of the plugging ball, the supporting spring and the jet pipe, when the resistance of the front end is increased, liquid jet is formed under the pressure effect of liquid at the rear end, impurities at the front end are washed out,