24-hour automatic water sampling device

The utility model relates to the technical field of water quality monitoring, in particular to a 24-hour automatic water sampling device which comprises a box body, a partition plate is fixedly connected to the interior of the box body and divides the interior of the box body into a sampling cavity and a control cavity, a sampling assembly is fixedly installed in the sampling cavity, and the control cavity is connected with the sampling assembly. A plurality of placing cylinders are fixedly connected to the inner bottom wall of the sampling cavity. The water sampling device has the advantages that the sampling pipe is connected with the twelve branch pipelines, sampling is performed once every two hours under the cooperation of the timer, the controller and the electromagnetic valves, the twelve sampling bottles correspond to twelve water sampling time points in all weather respectively, and the corresponding branch pipelines are opened and closed through the electromagnetic valves, so that the water sampling