Sampling inspection device for sunflower seed breeding seeds

The utility model discloses a sunflower seed breeding seed sampling inspection device which comprises a leakage-proof assembly, and the leakage-proof assembly comprises a lead screw, three connecting sleeves, three sliding blocks, three first sliding grooves, a second sliding groove, a fixing column, three leakage-proof plates, a rotating disc, a sampling pipe, three feeding ports, three limiting grooves, a mounting hole and three U-shaped grooves. The inner side walls of the three connecting sleeves are in threaded connection to the outer side wall of the lead screw at equal intervals. The lead screw drives the connecting sleeve to move upwards through the threads, when the sliding block moves to the inner top wall of the first sliding groove, the sliding block drives the leakage-proof plate to move upwards, then the feeding port can be closed through the leakage-proof plate, then the fixing column is pulled upwards, the feeding port is opened at the moment, and the feeding port is opened. Furthermore, the f