| 主权项 |
1. A head structure of a brush appliance, comprising:
a frame movably connected with a head driving shaft; a plurality of driving bristle retainers connected with the head driving shaft and driven by the head driving shaft, designed to receive bristles mounted on them; and one or more driven bristle retainers, which and the plurality of driving bristle retainers are alternatively arranged with each other, and designed to receive bristles mounted on them, wherein, the one or more driven bristle retainers are driven by the plurality of driving bristle retainers under a constraint of the frame to move around their respective movement axes; at least one of the plurality of driving bristles retainers has at least one protrusion on an end surface along its longitudinal axis, and the one or more driven bristle retainers have at least one bevel face that cooperates with the protrusions on their end surfaces where the one or more driven bristle retainers are driven by the plurality of driving bristle retainers; and at least one driven point on at least one of the at least one bevel face is closer to a driving bristle retainer than a contact point, contact line, or contact plane between the bevel face and the corresponding protrusion, such that the driven bristle retainer is driven by the driving bristle retainer in the movement process. |
