Sample homogenizing device for pesticide residue detection

The utility model relates to a sample homogenizing device for pesticide residue detection. The sample homogenizing device comprises a barrel, a partition plate, a stirring paddle, a valve, a supporting strip, a moving rod, a guide rail, a collecting box and a filter screen. By operating the operating end of the moving rod, the valve closes the communicating opening in the partition plate. Melons, fruits and vegetables needing to be stirred are added into the upper cavity through the inlet in the barrel, the stirring paddle rotates to fully stir the melons, fruits and vegetables, and then the valve is opened through the moving rod. After the valve is opened, a solid-liquid mixture enters the lower cavity through the communicating opening and the mounting groove. An opening in the top of the collecting box is located under the communicating opening, a solid-liquid mixture enters the collecting box, then solid tissue is collected in the collecting box, and liquid flows out of the liquid outlet, is filtered by th