Spherical connecting support

The utility model discloses a spherical connecting support which comprises a universal ball body and a supporting rod, a plurality of bosses are arranged on the universal ball body, the surfaces of the bosses are planes, threaded inner grooves are formed in the bosses, connecting convex bodies are integrally arranged at the two ends of the supporting rod, threads matched with the threaded inner grooves are arranged on the circumferential faces of the connecting convex bodies, and the connecting convex bodies are connected with the supporting rod. A plurality of boss key grooves are formed in the periphery of the boss, a plurality of side key grooves are formed in the outer side of the end of the supporting rod, key strips are placed in the boss key grooves and the side key grooves, and an anti-rotation sleeve used for placing the key strips in a sleeving mode and preventing the supporting rod and the universal ball from rotating is further arranged at the end of the supporting rod. The utility model aims to p