Automatic uniform mixing device for extracting reagent

The utility model relates to an automatic mixing device for extracting reagents, which comprises a mixing instrument provided with an oscillation tray for placing or fixing reagent bottles, and further comprises an inductive switch assembly which comprises a trigger part fixedly arranged on the mixing instrument and a triggering part fixedly arranged on a pipette, the triggering part is in signal connection with a controller of the blending instrument, when the triggering part is close to the reagent bottle on the oscillation tray, the triggering part is triggered to be shut down, the blending instrument is shut down through the controller, and the controller restarts the blending instrument after the triggering part is far away from the triggering part along with the pipette or is shut down for a specific time interval every time. The device has the advantages that when the pipette is close to a reagent bottle on the blending instrument, the inductive switch assembly can trigger and stop the blending instrum