Lock catch type ground clamp

The invention relates to the field of ground wire equipment, in particular to a lock catch type ground clamp, which comprises a jaw type ground clamp head, an insulating bar and a rotating shaft, wherein the rotating shaft comprises a rotating spindle and a rotating cross shaft which are perpendicular to each other, and the insulating bar is rotationally connected to one end of the ground clamp head through the rotating spindle; and the other end of the ground clamp head is provided with a buckle type collision bead used for movably clamping the rotating cross shaft, and the center of an opening of the buckle type collision bead and the axis of the rotating cross shaft are kept on the same horizontal line. When the ground clamp head is bridged with a wire, the rotating shaft is driven to rotate by rotating the insulating bar, so that the rotating shaft is clamped in the buckle type collision bead, the wire can be locked, and a ground wire can be prevented from falling in an electric power maintenance process.