Geological fracture measuring device

The utility model relates to the technical field of geological crack measurement, and discloses a geological crack measuring device which comprises a fixing plate, a clamping groove is formed in the bottom of the fixing plate, a round rod is fixedly connected to the inner wall of the clamping groove, a fixing cone is connected to the surface of the round rod in a sleeved mode, a square plate is fixedly connected to one side of the fixing plate, and the square plate is fixedly connected to the other side of the fixing plate. A square groove is formed in the bottom of the square plate, a bandage is fixedly connected to the front face of the fixing plate, a round hole is formed in the surface of the bandage, and a fixing rod is fixedly connected to the edge of the bottom of the fixing plate. According to the geological crack measuring device, through the arrangement of the fixing plate, the round rod, the fixing cone, the square plate, the binding band, the fixing rod and the bolt, the fixing cone is pulled to b