Anti-sloughing supporting device for foundation pit on construction site

The utility model discloses a construction site foundation pit anti-sloughing supporting device which comprises a bottom plate, one side of the bottom plate is fixedly connected with a first connecting plate, one side of the bottom plate is fixedly connected with a second connecting plate, one side of the second connecting plate is fixedly connected with two guide rods, one end of each guide rod is fixed with the first connecting plate, and the other end of each guide rod is fixed with the second connecting plate. The top of the second connecting plate is rotationally connected with a baffle, one side of the baffle is rotationally connected with two connecting frames, the bottoms of the connecting frames are fixedly connected with two telescopic rods, the bottoms of the two telescopic rods are fixedly connected with sliding blocks, and the sliding blocks are in sliding connection with the guide rods. According to the supporting device, the fixing mechanism can be rotated, so that civil construction foundation