Sampling device for sewage monitoring

The utility model discloses a sampling device for sewage monitoring, which comprises a mounting pipe, the mounting pipe is mounted above a water surface to be detected, a protective cover is movably arranged at one end of the mounting pipe, a sampling mechanism is arranged in the mounting pipe and comprises a fixed pipe and a movable pipe, a piston is arranged at one end of the movable pipe, the movable pipe is connected with the protective cover, and the fixed pipe is connected with the protective cover. And the protective cover is driven to rotate and the movable pipe slides in the fixed pipe. According to the sampling device for sewage monitoring, the movable pipe is connected with the protective cover, when the protective cover is opened, the movable pipe is driven by the protective cover, so that a piston on the movable pipe moves in the fixed pipe, sewage at the bottom of the movable pipe moves upwards, and the sewage needing to be sampled moves to the upper part of the fixed pipe through the sampling m