Soil sampling device for soil compaction test in constructional engineering

The utility model discloses a soil sampling device for a soil compaction test in constructional engineering, relates to the technical field of constructional engineering construction, and solves the problem that the reliability of compaction test data is poor due to the fact that a soil sample is obtained by only relying on overflow soil in the soil drilling process and the depth of the soil sample is not clear. A fixing table is arranged at the top of the bottom plate main body, a first driving screw rod is rotatably connected to one end, far away from the bottom plate main body, of the fixing table, a moving block is in threaded connection with the outer side of the first driving screw rod, a sampling pipe is rotatably connected to one end, far away from the first driving screw rod, of the moving block, and a connecting pipe is arranged in the sampling pipe; the outer side of the connecting pipe is fixedly connected with a fixing ring, and the end, away from the connecting pipe, of the fixing ring is rotati