Aerial transmission line bird hazard preventing device

The utility model relates to a bird harm prevention device for the stilts building electricity transmission wire; the utility model has apperceiving functions and is able to frighten the birds whenever in day time or night to prevent the stopping or approaching on the wire, and the utility model will not influence the examine and repair on the tower of the wire workers. The utility model consists of a sensing unit, a power unit, an enforcing unit and an electric switch. The power wire of the sensing unit is directly connected with the power unit; the power wires of the three parts, a red light producing circuit, a frequency producer and a motor driving device are parallel connected and then is connected with the electric switch and connected into the power unit; the output end of the sensing unit is connected with the controlling end of the electric switch to control the enforcing unit; the sensing unit is provided with an intruding detecting sensor which is an infrared intruding detecting sensor or an ultrasonic intruding sensor or a microwave intruding detecting sensor; the upper transverse picul of the each insulating cluster of the electricity transmission pole tower is provided with a combination of a sensing unit, an electric switch and an enforcing unit; and the most top position of the pole tower is provided with a power unit which is connected with the power wire of other units and the electric switch. The utility model effectively solves the bird harm prevention and cure on the electricity transmission wire.