Waterproof acceptance device for constructional engineering supervision

The utility model relates to the technical field of constructional engineering acceptance devices, and discloses a waterproof acceptance device for constructional engineering supervision, which comprises an outer cylinder, a top cover is mounted at the top of the outer cylinder, an observation window is fixedly assembled on the outer wall of the outer cylinder, and a fixing plate is fixedly assembled in an inner cavity of the outer cylinder. A fixing rod is fixedly assembled in an inner cavity of the fixing plate, and the outer wall of the fixing rod is movably sleeved with a floating plate. According to the waterproof acceptance device for constructional engineering supervision, through the arrangement of the outer cylinder, the floating plate, the indicating plate and the fixing rod, when waterproof detection needs to be conducted on the ground of a toilet, only the outer cylinder needs to be placed on the ground, then water is injected into an inner cavity of the outer cylinder, at the moment, only the top