| 摘要 |
<p>The invention discloses an improved structure of an electric brush, which comprises a brush frame plate, a carbon brush component, a rotating shaft and a torsion spring, wherein a rotating shaft comprises a lower shaft sheathed with the torsion spring and an upper shaft equipped with the carbon brush component, the diameter of the upper shaft is smaller than that of the lower shaft, the mounting end of the carbon brush component is connected on the upper shaft in a rotating manner, a lower bulge is further arranged on the outer eave of the upper end surface of the lower shaft, and an upper bulge which is clamped with the lower bulge when the carbon brush component rotates outwards is arranged on the outer wall of the lower part of the mounting end of the carbon brush component.</p> |
