Bird repelling device

The invention relates to a bird repelling device which comprises a supporting column and a sound production mechanism. The sound production mechanism comprises fan blades, a roller, a rotating shaft and reeds; and the rotating shaft is installed at the top end of the supporting column and coaxially sleeved with the roller, one end of each reed is fixedly installed on the inner ring wall of the roller in the radial direction, the other end of each reed faces the rotating shaft, a plurality of contacts corresponding to the reeds are manufactured on the outer ring wall of the rotating shaft, andthe two fan blades are symmetrically installed on the outer wall of the roller in the radial direction. According to the bird repelling device, the principle of a music box is adopted, the reeds are poked by the contacts to vibrate to make a sound, and therefore the bird repelling effect is achieved. 本发明涉及一种驱鸟器，包括支柱、发声机构，所述发声机构包括：风叶、滚筒、转轴以及簧片；在支柱的顶端安装转轴，转轴外同轴套装滚筒，在滚筒的内环壁径向固装簧片的一端，簧片的另一端朝向转轴，在转轴的外环壁与簧片对应制有多个触点，在滚筒的外壁径向对称安装