Descaling device

The invention relates to a descaling device. A brush head is arranged at one end of a movable rod; the driving mechanism comprises a mounting shell, a first rotating wheel, a transition piece and a driving motor, the mounting shell is provided with an inner cavity, the first rotating wheel and the transition piece are both located in the inner cavity, the first rotating wheel is rotationally arranged on the mounting shell, the transition piece is provided with a first end and a second end which are opposite, and the first end is eccentrically connected to the first rotating wheel; the second end is movably connected to the end, away from the brush head, of the movable rod. The guide sleeve is arranged on the mounting shell and arranged on the outer wall of the movable rod in a sleeving mode, the guide sleeve extends in the first direction, and the movable rod can reciprocate in the first direction under the guiding effect of the guide sleeve; power of the driving motor is transmitted to the brush head through