Well lid accurate positioning detection equipment based on intelligent large screen

The utility model discloses a manhole cover accurate positioning detection device based on an intelligent large screen, and belongs to the technical field of manhole cover detection devices. The manhole cover accurate positioning detection equipment based on the intelligent large screen comprises a cover body, the lower side of the cover body is fixedly connected with a placing box, the lower side of the placing box is fixedly connected with a fixing block, and a moving plate box is movably inserted into the placing box; the detection instrument is arranged in the moving plate box; and the lead screw nut transmission mechanism is arranged on the lower side of the cover body. According to the manhole cover accurate positioning detection equipment based on the intelligent large screen, a detection instrument can be put into a mounting box of a moving plate box from a square hole, then a round handle is rotated to enable the moving plate box to move towards the interior of a placement box until a sealing plate o