Universal adjusting point supporting device

The utility model relates to the technical field of constructional engineering, and discloses a universal adjusting point supporting device. The claw pieces are used for connecting a plurality of adjacent glass curtain walls into a whole through fine adjustment connection joints arranged on an external glass curtain wall; a length-adjustable base unit and a ball head rotating unit are arranged between a claw piece and a main steel structure, and the ball head rotating unit is connected between the base unit and the claw piece through a groove and a ball head. And the length of the base unit and the position of the ball head of the ball head rotating unit in the groove of the base unit are adjusted, so that the connecting and supporting requirements of variable relative positions between the glass curtain wall and the main steel structure are met, and the mounting difficulty and the mounting cost are reduced. Besides, when the surface effect of the glass curtain wall cannot meet the design requirement, the gla