Pipe gripping tongs and hydraulic control system thereof

The invention relates to the technical field of oil well equipment, in particular to a pipe grabbing tong and a hydraulic control system thereof.The pipe grabbing tong comprises a tong body, the tong body comprises an upper cover, the lower end of the upper cover is movably connected with a turnover mechanism, the turnover mechanism is connected with a tong seat, the tong seat is provided with a pair of adjustable tong fingers, and the tong fingers are arranged on the tong seat. The clamp fingers are opened and closed through hydraulic pressure, and the clamp seat and the adjustable clamp fingers on the clamp seat can be driven to rotate through rotation of overturning, so that the clamp adapts to different positions and angles of a pipe column conveyed from a ramp, and the situation that the clamp heads are subjected to build-up force caused by the angle change of the pipe column when the mechanism is lifted or lowered is prevented; and the clamp fingers are adjustable, so that the pipe grasping pliers can a