Novel stable supporting frame for drum screen

The utility model relates to the field of drum screening, in particular to a novel stable supporting frame for a drum screen. Comprising a fixing frame and a sliding block, an inner screen drum is additionally arranged on an inner screen drum body of the drum screen in an extending mode, corresponding protruding parts are arranged on the two sides of the top of the fixing frame respectively, slidable carrier roller supports are arranged on the two protruding parts respectively, and stable carrier rollers for supporting the inner screen drum are arranged on the carrier roller supports. Sliding grooves are formed in the opposite sides of the two protruding parts respectively, the two sides of a sliding block are connected into the two sliding grooves in a sliding mode, a telescopic rod is arranged between the bottom of the sliding block and the fixing frame, corresponding carrier roller supports are arranged on the two sides of the top of the sliding block respectively, and supporting carrier rollers are arrang