The invention discloses an extra-high-
voltage cable stress cone jacking device, and relates to the technical field of high-
voltage cable stress cones, the extra-high-
voltage cable stress cone jacking device comprises a stress cone body, a base is arranged below the stress cone body, a clamping mechanism is arranged above the base of the stress cone body, and a dust collection mechanism is arranged on one side of the clamping mechanism. The clamping mechanism comprises connecting blocks, sliding rods and clamping strips, the connecting blocks are arranged on the two sides of the stress cone body, the sliding rods are fixedly installed on the outer walls of one sides of the connecting blocks, and the outer walls of the sliding rods are movably connected with the inner wall of the base. Under the interaction of a pulling plate, a connecting block, a sliding rod, clamping strips, a first spring, an L-shaped plate, an L-shaped block, a
threaded rod, a clamping block and a springback
assembly, a stress cone body is fixed through the springback
assembly on the clamping strips, meanwhile, a rotary knob is rotated to drive the
threaded rod to rotate, the
threaded rod drives the clamping block on the sliding plate to be clamped into a clamping groove, the two clamping strips are locked, and therefore the stress cone body is fixed. And the fixing is convenient.