A floor cleaning tool including a housing, a reservoir coupled to the housing and adapted to hold a cleaning solution, and a floor-engaging roller coupled to the housing and rotatable with respect to the housing. The tool also includes a wheel by which the floor cleaning tool moves across a floor surface in a direction of travel at least partially defining a front, rear, and lateral sides of the floor cleaning tool. The tool further includes a squeegee laterally insertable between the roller and the wheel, and a squeegee mount located between the roller and the wheel by which the squeegee is releasably mounted to the floor cleaning tool by first and second laterally opposed protrusions rotatably secured within first and second apertures at opposite ends of the squeegee.

A fluid collection system for a floor maintenance machine provides improved collection of fluid, foam, and debris prior to the vacuum source. The fluid collection system includes a recovery chamber defining a volume, a hollow structure (such as a modified skirt) having an internal chamber, and a vacuum source in fluid communication with the volume of the recovery chamber via the internal chamber and a vacuum line. The vacuum source draws a vacuum in the volume of the recovery chamber by drawing a gas from the volume of the recovery chamber through the internal chamber of the hollow structure and through the vacuum line.

A hand-held rotary cleaning tool includes a housing that encloses an electric motor and a gear set that connects the motor to an output shaft. The rotary cleaning tool includes at least one cleaning accessory that is detachably connected to the output shaft, and a flexible splash guard. The splash guard surrounds the output shaft and cleaning accessory so as to prevent liquid splash during tool use. The rotary cleaning tool also includes a reservoir for storing a liquid cleaning solution, and a liquid delivery line that delivers liquid from the reservoir to the space enclosed by the splash guard.

The present invention relates to a nozzle arrangement (10) of a cleaning device (100) for cleaning a surface (20), comprising: a nozzle housing (28); a rotating brush (12) that is rotatable about a brush axis (14) and comprises a substantially cylindrical core element (52) with flexible brush elements (16) that are arranged on a circumferential surface (56) of the core element (52), wherein said brush elements (16) are configured to contact the surface to be cleaned (20) and pick up dirt and liquid particles (22, 24) from the surface to be cleaned (20) during a rotation of the rotating brush (12); a drive for driving the rotating brush (12); a liquid supplying arrangement (58) for supplying a cleansing liquid (68) to the rotating brush (12); a wiping element (32) for wiping dirt and liquid particles (22, 24) across or off the surface to be cleaned (20), wherein said wiping element (32) extends along a longitudinal direction (48), which is arranged substantially parallel to the brush axis (14), and wherein said wiping element (32) is arranged on a first longitudinal side (27) of the rotating brush (12) where the brush elements (16) enter the nozzle housing (28) during the rotation of the rotating brush (12); andat least one side sealing element (62a, b) for sealing a lateral side (82a, b) of the nozzle housing (28), wherein the at least one side sealing element (62a, b) is spaced apart from a transverse side (80a, b) of the core element (52) that is transverse to the circumferential surface (56) of the core element (52), such that a gap (84a, b) is defined between said transverse side (80a, b) of the core element (52) and the at least one side sealing element (62a, b); wherein the liquid supplying arrangement (58) is configured to also supply cleaning liquid (68) to said gap (84a, b).

A floor polishing machine for concrete includes a frame with an integrated hydraulic fluid tank, a hydraulic drive system, and a hydraulic pump vacuum system. Further, the machine provides a swivel polishing head that provides abutting contact with a floor and includes a floating ring and rubber skirts that seals the polishing head. The machine provides interchangeable wet and dry vacuum systems for collection of the slurry during wet operation and dust during dry operation. A support member inserts into a receiving sleeve for a choice of wet or dry option. A squeegee system attached to the rear of the apparatus collects slurry and operates to send the slurry to a collection tank. The squeegee lifts out of the way during dry operation.

A cleaning device comprises an upper cleaning solution tank comprising an outlet, a motorized chassis located beneath the solution tank and an electronics compartment defined at least partly by splash shields and a drip shield. The splash shields define a top and sides of the electronics compartment, and the drip shield defines a bottom side of the electronics compartment and includes at least one drip hole smaller than 2 mm in diameter. A wire opening in the splash shields includes a protective cover overlying the opening, the protective covering containing at least one passage facing in a direction opposite to the solution tank allowing a wire to pass through the passage, through the wire opening, and into the electronics compartment. Fluid lines extend from the outlet towards a bottom of the cleaning device and exterior to the electronics compartment. An enclosed electronics unit may also include wire openings and protective covers.

A floor cleaner, comprising: a cleaning roller, a water channel, a clean water tank, a clean water supply system, a wastewater tank and an air pump. The water channel is configured to cover the cleaning roller with an airtight seal. The clean water tank, the clean water supply system and the water channel are in communication with each other, and the clean water supply system is configured to allow clean water in the clean water tank to flow to the water channel. The wastewater tank comprises a chamber for recovery and store of wastewater, and the chamber is provided with a wastewater inlet and an air extraction opening. The wastewater inlet and the water channel are in communication, and an inlet of the air pump and the air extraction opening of the wastewater tank are in communication.

A cleaning device including a covering hood having a lower surface facing a surface to be cleaned and an inlet on an upper surface thereof, through which contaminants are sucked; an air knife provided on a circumference of the covering hood and having an outlet for spraying high pressure air to the surface to be cleaned; a sweeper installed inside the covering hood and rotated by a driving motor to guide foreign objects swept away from the surface to be cleaned and contaminants floated by the high pressure air injection of the air knife to the inlet; a rotary member including a shaft passing through a circumferential surface of the covering hood and the air knife, and a rotary knob coupled to one end of the shaft to rotate the air knife to adjust an air spray angle.

A floor cleaner includes an electrically powered component and a power switch. The power switch includes a button including an actuator surface and a wall that extends away from the actuator surface. The power switch further includes a frame, the button movable relative to the frame to operate the power switch. The frame includes an inner wall that defines a button aperture, the button extending into the button aperture, an outer wall, a fluid outlet, and a fluid collection surface between the inner wall and the outer wall that directs fluid on the fluid collection surface toward the fluid outlet. The wall of the button is received in a gap between the inner wall and the outer wall of the frame so that fluid is directed along the wall of the button to the fluid collection surface and inhibited from passing through the button aperture.

This document describes a mobile cleaning robot that includes a chassis that supports a drive system, a debris collection volume; and a cleaning head formed to complete a bottom of the robot. The cleaning head includes a frame for affixing the cleaning head to the chassis, a monolithic housing having an interior cavity, a suspension linkage movably suspending the monolithic housing from the frame, the suspension linkage being configured to lift the monolithic housing, a diaphragm formed of a flexible material and mated to the monolithic housing, a rigid duct mated the frame to form a pneumatic path between the monolithic housing and the rigid duct through the diaphragm, and cleaning extractors disposed in the interior cavity of the monolithic housing.