Oil bath digestion device beneficial to uniform heating of materials

The invention discloses an oil bath digestion device beneficial to uniform heating of materials, and particularly relates to the technical field of laboratory sample preparation, the oil bath digestion device comprises a fixed column, a telescopic transmission rod, a fixed ring, a connecting rod, a containing cylinder for containing the materials, a first driving mechanism and a second driving mechanism; a sliding groove is formed in the middle of the fixing column, and the telescopic transmission rod is slidably arranged in the sliding groove of the fixing column in a penetrating mode. One end of the connecting rod is fixed with the outer side end of the fixing column, and the other end is fixed with the fixing ring; the first driving mechanism comprises a sliding rail, a first transmission wheel, a first rotating fixing rod, a driving rod, a rotating base and a fixing piece used for fixing the containing cylinder. The first transmission wheel is in transmission connection with the second driving mechanism.