Sampling device for vehicle ethanol gasoline detection

The invention relates to the technical field of gasoline sampling, in particular to a vehicle ethanol gasoline detection sampling device which comprises a sampling rod and a sampling gun, a bottom disc and a top disc are rotationally connected to the bottom and the top of the inner wall of the sampling rod respectively, and a plurality of broken ring frameworks are slidably connected to the inner wall of the sampling rod; equal-limit springs distributed at equal intervals are arranged between every two broken ring frameworks, an inner movable disc is fixed to the broken ring framework farthest away from the bottom disc, a central supporting plate is fixedly arranged on one side wall of the bottom disc, the inner movable disc is slidably connected to the central supporting plate, a liquid taking box is slidably connected to the central supporting plate in an inserted mode, and the liquid taking box is fixedly connected to the bottom disc. According to the vehicle ethanol gasoline sampling device, sampling is c