Vibration isolation frame of vibrating screen capable of reducing vibration

The vibration isolation frame comprises an upper damping plate, a bottom plate and a plurality of sliding rods, the upper damping plate is connected to the upper portions of the sliding rods in a sliding mode, and the bottoms of the sliding rods are fixedly connected with the top of the bottom plate; a plurality of springs are fixedly connected between the upper damping plate and the bottom plate, an upper limiting ring and a lower limiting ring are in threaded connection with the periphery of the sliding rod, the upper limiting ring is located on the upper portion of the upper damping plate, and the lower limiting ring is located on the lower portion of the upper damping plate; the vibration screen can be installed on the top face of the upper vibration damper plate, after installation, a part of energy brought by the weight of the vibration screen can be absorbed through the springs, then vibration generated in the operation process of the vibration screen is absorbed through the rubber layers of the upper