Novel water conservation desilting device

The utility model discloses a novel water conservation desilting device which comprises a motor, wherein a rotating shaft is arranged on the motor; a sliding chute is formed in the rotating shaft; a sliding block matched with the sliding chute is arranged in the sliding chute; a supporting arm is arranged on the sliding block; desilting shovels are arranged at the tail end of the supporting arm; a positioning block is arranged at the tail end of the sliding chute; the positioning block and the sliding block are connected through a return spring; the rotating shaft is sleeved with a limiting cylinder; the tangent plane of the limiting cylinder takes the shape of a right trapezoid. According to the utility model, when desilting is carried out, a plurality of desilting shovels continuously and circularly work, so that working efficiency is greatly improved; moreover, after desilting is finished, the novel water conservation desilting device is also very convenient to wash and maintain, so that the service life of the desilting device is prolonged and the desilting cost is reduced.