Floor scrubbing machine

Abstract

A floor scrubbing machine includes a footing that supports at least one brush, which can be actuated rotationally by an actuation assembly. The machine further includes at least one device for dispensing a washing liquid, a squeegee arranged to the rear of the brush, and at least one device for aspirating from the floor the washing liquid and the dirt removed by the brush. Additionally, the machine includes a pair of box-like bodies, each of which forms a respective tank for containing a liquid processed by the machine. The box-like bodies are stacked on each other on the footing. Removable retention elements are provided which act between the footing and the box-like body that lies above the other box-like body in order to retain the box-like bodies against each other and against the footing.

What is claimed is: 
     
         1 . A floor scrubbing machine, comprising a footing that supports at least one brush, which can be actuated rotationally by an actuation assembly, at least one device for dispensing a washing liquid, a squeegee arranged to the rear of said brush, and at least one device for aspirating from the floor the washing liquid and the dirt removed by said brush, further comprising a pair of box-like bodies, each of which forms a respective tank for containing a liquid processed by the machine, said box-like bodies being stacked on each other on said footing, removable retention means being provided which act between said footing and the box-like body that lies above the other box-like body in order to retain said box-like bodies against each other and against said footing. 
     
     
         2 . The machine according to  claim 1 , wherein said retention means comprise a pair of hooks, which are arranged on opposite sides of the footing and are each provided with a wing that is pivoted, at one end, to the footing and has, at its opposite end, at least one engagement protrusion that can engage a respective abutment region formed on said box-like body arranged in an upper region. 
     
     
         3 . The machine according to  claim 1 , wherein the box-like body that is arranged in a lower region has, on its upward-facing side, a mouth for accessing an internal cavity thereof, which is closed by an occlusion portion that is formed on the bottom of said box-like body that lies in an upper region. 
     
     
         4 . The machine according to  claim 3 , wherein said box-like body that is arranged in an upper region has, on its upward-facing side, an opening for accessing its internal cavity, which can be blocked by means of a cover provided with means for locking to said box-like body that lies in an upper region. 
     
     
         5 . The machine according to  claim 4 , wherein said locking means comprise a pair of levers that are pivoted to opposite sides of said cover and have, at one of their free ends, at least one respective locking tooth that can engage against a respective border formed on said box-like body that is arranged in an upper region. 
     
     
         6 . The machine according to  claim 3 , wherein said box-like body that is arranged in a lower region forms a tank for containing a washing liquid that supplies said dispensing device, and in that said box-like body that is arranged in an upper region forms a tank for collecting the dirty liquid drawn by said suction device. 
     
     
         7 . The machine according to  claim 4 , wherein said box-like body arranged in a lower region is crossed by at least one passage for accommodating at least one duct, which is connected to said box-like body that is arranged in an upper region and is connected to said suction device, and said actuation assembly of said brush. 
     
     
         8 . The machine according to  claim 7 , wherein in said cover there is a suction port, which is intended to be connected to said duct and is connected to an inlet for the dirty liquid, which is intended to be connected to the inside of said box-like body that is arranged in an upper region, and a connection port, which is intended to be connected to air suction means and is connected to an air evacuation port that is intended to be connected to the inside of said box-like body that is arranged in an upper region, said inlet and said air evacuation port being controlled by respective closure valves.