Conical stereoscopic bird preventing device

The invention relates to a conical stereoscopic bird preventing device. The device comprises a conical bird preventing device outer cover (1), a metal supporting rod (2) and a bird preventing device U-type base (3). The device is applied to a straight-line pole tower for lines with the voltage being 66 KV or larger than 66 KV and is convenient to install, the outer cover at the upper end of the bird preventing device can be made of metal plated with zinc, stainless steel, PVC composite materials, alloy and other materials with certain strength and corrosion resistance, and the service life can be prolonged. Due to the application of the bird preventing device to the overhead transmission line pole tower, the capacity of overhead transmission lines for resisting bird trouble can be greatly improved, the fault tripping rate caused by bird trouble can be effectively reduced, the frequency for line operation examining staff to climb onto the pole tower to remove bird nests can be reduced, the device conforms to the scientific, effective, economic and normative principle, and safe and stable operation of a power grid can be guaranteed.