Sampling detection device for sewage treatment engineering

The utility model discloses a sampling detection device for sewage treatment engineering, which comprises an outer cylinder, an inner cylinder is arranged in the outer cylinder, the bottom end of the inner cylinder is fixedly connected with an inclined plastic pipe, the top of one side of the outer cylinder is provided with a cross rod, the top end of the cross rod is fixedly connected with a clamping plate, and the middle part of the clamping plate is movably connected with two blocking columns in a penetrating manner; according to the sampling detection device for the sewage treatment engineering, the outer cylinder, the inner cylinder in threaded connection with the interior of the outer cylinder, the guide pipe and the insertion hole are arranged, so that a new inner cylinder can be screwed in each time of sampling, the inner cylinder can be quickly and fixedly connected with the outer cylinder, and the inner cylinder can be connected with the guide pipe in a penetrating and inserting manner while being i