Patent ID: 6948213

Claim:
A vehicle for sweeping streets including a vehicular frame, a water tank mounted on said vehicular frame, a collection hopper located above said water tank and defined with a refuse suction port and an air exhaust port, said collection hopper delimiting a refuse accommodating space and having a filtering screen which is arranged in said air exhaust port, water spraying nozzles connected to said water tank to spray water supplied from said water tank on a street, brushes positioned close to the street to be engaged or disengaged with the street, a refuse suction tube located adjacent to said brushes to suck and convey refuse on the street through said refuse suction port into said collection hopper, and a blower unit for inducing suction force through said air exhaust port, said refuse accommodating space and said refuse suction port in said refuse suction tube, said vehicle for sweeping streets adapted for sucking and collecting refuse located on the street through said refuse suction tube into said collection hopper while water is sprayed from said water spraying nozzles to prevent fine dust particles from rising, wherein an opening is defined through a bottom wall of said collection hopper, a water inlet hole is connected to said opening through a drain pipe is defined through a wall of said water tank, and a filter assembly is arranged between said opening of said collection hopper and said water inlet hole of said water tank.