Noise reduction sweeping robot

The utility model discloses a noise reduction sweeping robot which comprises an elastic shell, driving wheels, driven wheels and brushes, the driving wheels, the driven wheels and the brushes are distributed at the lower end of the elastic shell, the driving wheels are symmetrically arranged in front of the lower end of the elastic shell, and the brushes are symmetrically arranged at the two ends of the bottom of the elastic shell. A brushless direct current motor, a fan and a dust collection box are arranged in the elastic shell, the rotating speed of the fan is low, the diameter of an impeller is large, the fan and the elastic shell are connected through a rubber elastic piece with small thickness, the dust collection box is provided with a dust collection opening communicated with the lower end of the elastic shell, and the surface roughness of blades of the fan is low. The tail edge of a blade of the fan is arranged to be in a sawtooth shape, a distance is reserved between the tail edge and the inner side