Sampling device for microalgae identification

The utility model discloses a sampling device for microalgae identification, which comprises a sampling tube, a sleeve arranged on one side of the top of the sampling tube, a piston block connected with an inner cavity of the sleeve in a sliding and penetrating manner, and a connecting rod, the bottom end of the connecting rod is fixedly connected with the top end of the piston block, a sampling mechanism is arranged on the sampling tube, and the sampling mechanism comprises a plurality of chambers. A plurality of water inlets are equidistantly and fixedly inserted into the front surface of the sampling pipe, a plurality of fixed pipes are equidistantly and fixedly inserted into one side of the sampling pipe, a connecting pipe is fixed at one end of each fixed pipe, and valve valves are fixed on the inner walls of the water inlets. According to the utility model, the sampling tube is vertically inserted into a microalgae solution and vertically moves upwards in the inner cavity of the sleeve along with the pi