An extraction cleaner includes a suction nozzle having an inlet path and suction fan configured to provide suction. The inlet path brings liquid and air into the extraction cleaner. Suction fan has a fan entrance, a recovery tank is spaced from the fan entrance. A separator element configured to allow liquid to flow into the recovery tank, inhibit the flow of liquid out of the recovery tank, and inhibit liquid from reaching the fan entrance, or all three. The separator element may be a butterfly valve configured to selectively close the fan entrance. The separator element may be a funnel extending into the recovery tank to block liquid from leaving the recovery tank during inversion. The separator element may be a fan separator adjacent the suction fan, which directs liquid outward, away from the fan separator, within the extraction cleaner, such that liquid is moved away from the suction fan.

A cleaning device, including: a device main body, a drive assembly, a roller, a lifting assembly, and a wastewater collection assembly. The drive assembly is configured to drive the device main body to move along a surface to be cleaned for cleaning by the roller. The lifting assembly is configured to drive the roller to switch between a lowered position and a raised position; in a case where the roller is in the lowered position, the roller contacts the surface to be cleaned; in a case where the roller is in the raised position, the roller is separated from the surface to be cleaned. The wastewater collection assembly includes a water scrapper, and the water scrapper is configured to abut against the roller regardless of whether the roller is in the lowered position or the raised position, for scrapping out wastewater in the roller.

A water vacuum sampling system comprising: an outer housing having a sampling port and a vacuum port, wherein the sampling port is configured to connect to a suction head and the vacuum port is configured to connect to an inlet hose of a vacuum; a velocity dampener cone disposed within the outer housing and configured to receive incoming water, air, and particles that have passed through the sampling port after being sucked up through the suction head, wherein the velocity dampener cone is perforated by a plurality of holes and flares away from the sampling port; a catch basin mounted within the outer housing and having an open upper end and a bottom outlet, wherein the velocity dampener cone extends into the open upper end; and a sample collection container removably attached to the bottom outlet.

A motor assembly and a surface cleaning device are provided. The motor assembly includes: a housing, the housing including an air outlet and a water outlet; a motor body, arranged inside the housing and configured to provide working power; and a cyclone bracket, arranged between the motor body and the housing and configured to guide a working airflow. The cyclone bracket, the motor body and the housing are substantially coaxially arranged in such a manner that after being discharged from the motor body, the working airflow carrying water vapor is condensed into liquid on an inner side wall of the housing through the cyclone bracket and then the liquid is discharged from the water outlet, while the working airflow not condensed into the liquid is discharged from the air outlet.

The invention relates to a vacuum wastewater device, a vacuum wastewater device arrangement as well as a method for removing wastewater from a wastewater reservoir. The vacuum wastewater device comprises a vacuum wastewater device inlet fluidically connectable to a wastewater reservoir, a vacuum wastewater device outlet configured to be supplied with vacuum from a vacuum unit, a valve unit arranged between the vacuum wastewater device inlet and the vacuum wastewater device outlet, an electronic control unit configured to control the valve unit, thereby controlling a fluid flow from the wastewater reservoir through the vacuum wastewater device, and a first sensor arrangement configured to detect a pressure inside the vacuum wastewater device as a first value. In addition, a second sensor arrangement is provided configured to detect a second value related to the vacuum wastewater device.

A vacuum tool configured to be removably coupled to hose or wand of a vacuum includes a body including a first end, a second end, and a first longitudinal axis extending between the first end and the second end. The vacuum tool also includes a head coupled to the first end of the body, a connection portion coupled to the second end of the body and configured to couple the body to a hose or wand of a vacuum cleaner, and a brush coupled to the head. The brush includes an elongate support defining a second axis perpendicular to the longitudinal axis of the body and configured to couple the brush to the head, and a plurality of bristles positioned on the elongate support.

A filtering pan apparatus for filtering solids out of fluid being removed by a vacuum system includes a base and a duct being coupled to and extending upwardly from the base. The duct has an inlet opening and an outlet opening extending into the duct, with the inlet opening being positioned adjacent to the base. A vacuum connector is coupled to and extends away from the duct and is in fluid communication with the outlet opening. The vacuum connector has a connector opening in a distal end thereof relative to the duct which extends into the vacuum connector. A filtering screen is coupled to and extends upwardly from the base. The filtering screen covers the inlet opening and is liquid permeable.

An extraction cleaner includes a suction nozzle having an inlet path and suction fan configured to provide suction. The inlet path brings liquid and air into the extraction cleaner. Suction fan has a fan entrance, a recovery tank is spaced from the fan entrance. A separator element configured to allow liquid to flow into the recovery tank, inhibit the flow of liquid out of the recovery tank, and inhibit liquid from reaching the fan entrance, or all three. The separator element may be a butterfly valve configured to selectively close the fan entrance. The separator element may be a funnel extending into the recovery tank to block liquid from leaving the recovery tank during inversion. The separator element may be a fan separator adjacent the suction fan, which directs liquid outward, away from the fan separator, within the extraction cleaner, such that liquid is moved away from the suction fan.

New and novel structure(s) for cleaning surfaces have been disclosed. The invention at hand inventively improves upon the known devices in this field.

An extraction cleaner may include a base, an upright body pivotally coupled to the base, a supply tank removably coupled to the upright body and a recovery tank removably coupled to the upright body. The base may include a non-removable door and a removable suction nozzle. At least one fluid dispensing nozzle may be provided on the door. The door may be pivotally coupled to the base for providing access to an agitator. The cleaner may include and auto-spray configuration. The cleaner may include a support on the upright portion for the recovery tank. The cleaner may include an additive tank received in a receptacle of the supply tank. The recovery tank may include a float and/or an airflow management configuration. The cleaner may include a cleaning tool and a suction changeover valve and/or a fluid changeover valve. The cleaner may include a mixing valve for supplying fluid to a fluid changeover valve. A cleaning composition including an aqueous based cleaning solution mixed, on demand, with an aqueous based oxidizing solution is also provided.