Universal insulating porcelain clamp

The invention discloses a universal insulating porcelain clamp, which belongs to the technical field of porcelain clamps. The universal insulating porcelain clamp comprises a hinge part, an upper cover plate, a pair of middle pressing plates and a pair of bottom plates. The hinge part enables a component hinged to the hinge part to be fixed on the hinge part when the component rotates to a certainposition. Each middle pressing plate comprises an upper plate part and a lower plate part which are parallel to each other and are arranged up and down, and the ends, close to each other, of the upper plate part and the lower plate part are integrally connected through a vertical plate part perpendicular to the upper plate part and the lower plate part so that each middle pressing plate can be ofa Z-shaped structure. When the two bottom plates are both located on the horizontal plane, gaps exist between the end faces of the open side walls, away from each other, of groove-shaped bodies and the upper plate parts, and