Ordered rice seedling throwing pneumatic acceleration conveying assembly for rice planting

The invention discloses a pneumatic accelerated conveying assembly for orderly seedling throwing in rice planting and belongs to agricultural machinery. A sealing upper seat plate with seedling inlet through holes is installed on the upper end portion of an airtight air chamber shell, a frame type seat plate is assembled on the sealing upper seat plate, grating type seedling separating plates are assembled on the frame type seat plate in parallel and at intervals, and the positions between the adjacent grating type seedling separating plates are correspondingly communicated with each other through the seedling inlet through holes in the frame type seat plate and the sealing upper seat plate. An air jet nozzle is installed on the bottom wall of the airtight air chamber shell in a sealed mode, the upper end and the lower end of a seedling feeding pipe are connected with a seedling inlet through hole in the upper sealing base plate and the upper end of the air jet nozzle in a sealed mode respectively, and a posi