Sample extraction device for genetics detection

The sample extraction device comprises an extraction box, a horizontal partition plate is fixedly connected to the inner wall of the extraction box, a sample placing opening is formed in the outer wall, located above the partition plate, of the extraction box, and a sample placing box is fixedly connected to the inner wall, located at the sample placing opening, of the extraction box; a sampling opening is formed in the box wall, close to the top and away from one side of the sample placing opening, of the extraction box, a flat plate is fixedly connected to the inner wall, located at the sampling opening, of the extraction box, and a conveying mechanism is arranged in the extraction box. Detection liquid is transported through the electric pneumatic cylinder, the sealing plug moves downwards to be separated from the sealing ring under the electrifying and magnetism generating action of the electromagnet, and then the detection liquid is pumped into the vacuum sampling bottle through the sampling pipe by util