Water sample collector

The utility model relates to a water sample collector. The cup comprises a cup body, a cup cover and a balancing weight, the cup cover covers the top of the cup body, the balancing weight is fixed tothe bottom of the cup body, a water inlet valve is arranged on the cup cover, the cross section of the cup body and the cross section of the cup cover are both in the same oval shape, and the cup cover is connected to the top end of the cup body in a clamped mode through at least three buckles; the bottom diameter of the balancing weight is smaller than the top diameter of the balancing weight, and the balancing weight is streamline. One purpose of the utility model is that the oval cross section can reduce the area of the cup body in the water flow direction, so that the thrust of water flowto the cup body is reduced, and the inclination angle of the lifting rope in the diving process of the device is reduced under the action of the bottom balancing weight, so that the depth error is reduced. 本实用新型涉及一种水样采集器，包括杯体、