Agricultural product grading and screening device based on Internet of Things

The agricultural product grading and screening device based on the internet of things comprises a base, a conveying structure is arranged on one side of the upper end of the base, an infrared scanning structure is arranged at the upper end of the conveying structure, and a screening conveying belt is installed at the upper end of the base. After the infrared scanning structure scans crops at the upper end of the conveying structure, a motor runs and drives an adjusting screw rod to rotate, the surface of a moving block rotates along with the adjusting screw rod under the action of a limiting rod, and the moving block rotates along with the adjusting screw rod under the action of threads. The moving blocks move along the surfaces of the adjusting screw rods and the limiting rods, the moving blocks drive one ends of the movable guide plates to move through the connecting rods, and one ends of the movable guide plates move along the surfaces of the arc-shaped sliding rails, so that one ends of the movable guide