Universal clamp apparatus for cross arm of electric transmission line tangent tower

The utility model discloses a universal clamp apparatus for a cross arm of an electric transmission line tangent tower, which comprises a hinge, a clamp apparatus matched with a bowl head of a porcelain or glass insulator, and two double-head lifting leading screws. Hanging rings at two ends of the hinge are respectively matched with upper clamp apparatuses of the double-head lifting leading screws; the hinge is detachably and fixedly connected with upper ends of the double-head lifting leading screws by the hanging rings at the two ends and the upper clamp apparatuses of the double-head lifting leading screws; hanging holes arranged at two ends of the clamp apparatus are matched with lower clamp apparatuses of the double-head lifting leading screws; and the two ends of the clamp apparatus are detachably and fixedly connected with lower ends of the double-head lifting leading screws by the hanging holes and lower clamp apparatuses of the double-head lifting leading screws. The universal clamp apparatus for th