Anti-resonance device installed on overhead wire

The invention discloses an anti-resonance device mounted on an overhead wire, which comprises a mounting box, a power structure mounted on the side surface of the mounting box, a transmission seat arranged in the mounting box, and a connecting frame for integrally fixing the anti-resonance device on the wire, so that the wires can be supported, and the phenomenon of contact between the wires can be effectively prevented; in strong wind weather, wind drives a fan blade frame to rotate, and a cam on a rotating shaft can be in intermittent contact with a top ball under transmission of a transmission seat, so that a piston I is driven to perform piston motion in an outer pipe, the inner part of the outer pipe is inflated, a piston II is jacked up, and an inner pipe moves outwards; and after reaching the position of the exhaust pipe, the electric wires are reset under the action of the second spring, so that force is applied to the electric wires fixed on the connecting frames, and due to the fact that the time fo