Synchronous lifting type doublet insulator string

The utility model discloses a synchronous lifting type doublet insulator string. The synchronous lifting type doublet insulator string is used for power transmission line construction. The synchronous lifting type doublet insulator string comprises two parallelly-arranged insulator strings of which the lower ends are connected together through connection yoke plates, wherein the insulator string comprises a suspension armor clamp string and an insulator group which are connected with one another from up to down. The synchronous lifting type doublet insulator string further comprises a lifting device which is arranged between two traction plates in the suspension armor clamp string; the lifting device comprises a traction groove of which the section is U-shaped and a cylindrical lifting rod which is arranged in the traction groove and is matched with the traction groove; traction holes are correspondingly formed at middle portions of a front groove plate and a rear groove plate of the traction groove; and the lifting rod passes through the traction plates and is provided with screw threads which are located at end portions of the outer sides of the traction plates and fixing nuts which are matched with the screw threads. The synchronous lifting type doublet insulator string of the utility model has the advantages of novel design and simple structure. With the synchronous lifting type doublet insulator string adopted, the two strings of insulators and the suspension armor clamp strings of the doublet insulator string can be simultaneously lifted to a predetermined installation position, and collision and twisting of the two strings of insulators in a lifting process can be prevented.