Water quality test sampling cylinder

The utility model relates to the technical field of water quality test sampling cylinders, and discloses a water quality test sampling cylinder which comprises a cylinder body, a pipe body is installed at the center of the bottom of the cylinder body in an embedded mode, the top of the pipe body extends to an inner cavity of the cylinder body, the inner cavity of the pipe body is connected with a piston in a sliding mode, and the left side and the right side of the top of the piston are both fixedly connected with compressed springs. According to the novel sampling cylinder, water can conveniently enter the inner cavity of the cylinder body through the arrangement of the cylinder body, the pipe body, the piston, the pressure spring and the water inlet hole, the connecting position of the pipe body and the piston can be further sealed through the arrangement of the limiting ring and the sealing ring, and through the arrangement of the structure, when the sampling cylinder is used, the sampling cylinder is not