High-voltage and high-strength porcelain insulator

The utility model relates to the field of insulators, in particular to a high-voltage and high-strength porcelain insulator, which aims at solving the technical problems that an insulator in the prior art is excessive in rigidity, poor in flexibility and easy to collapse in strong wind weather, and comprises an insulating part I, an insulating part II and a connecting part which are all made of insulating materials, a sliding groove is formed in the first insulating part, the connecting parts are distributed and embedded in the second insulating part in a circumferential array mode, the connecting parts are connected into the sliding groove in a sliding mode, a spring is arranged in the sliding groove, the two ends of the spring are connected to one end of the sliding groove respectively, and one end of each connecting part, the two ends of the first insulating part and the two ends of the second insulating part are connected with conductors of different potentials respectively. The connecting piece of the in