A robot cleaner comprising: a cleaner body; a suction unit sucking air containing dust to be introduced into the cleaner body; and a dust container detachably coupled to the cleaner body, the dust container collecting dust filtered from the air introduced into the cleaner body, wherein the dust container includes: an external case including at least one cyclone filtering dust in air introduced into the dust container; an upper case coupled to an upper portion of the external case, the upper case including an upper opening corresponding to a space into which air passing through the cyclone is discharged; an upper cover detachably coupled to the upper case to open/close the upper opening; and a filter mounted on a rear surface of the upper cover, the filter covering the discharged space of the air passing through the cyclone when the upper cover is coupled to the upper case, to filter dust in the air passing through the cyclone.

A surface cleaning apparatus is provided wherein at least one of an upstream air plenum that is positioned upstream of the pre-motor filter, and a downstream air plenum that is positioned downstream of the pre-motor filter comprises an end wall spaced from the pre-motor filter and comprises a first portion having an air flow port and a second portion proximate the outer perimeter of the pre-motor filter, wherein the first portion and the second portion meet at a first juncture that extends at an angle to the first portion and the second portion.

A nozzle of a cleaner includes a nozzle body, a rotation cleaning part having a rotation plate to which a rag is attached, a driving device provided in the nozzle body, a water tank, a water supply passage, and a water adjuster of which at least a portion is mounted on the nozzle body at a rear side thereof so as to be exposed to a rear surface or a top surface of the nozzle body. A user standing on the same floor surface as the nozzle body may manipulate the water adjuster by using his or her foot. The water adjuster may be configured to adjust an on/off operation and a rotation speed (e.g., rpm) of the pump motor.

A rotary brush is easily attachable to and detachable from a body with less separation from the body during cleaning. A rotary brush attachable to a driving shaft rotatable about a rotation axis and including a protrusion includes a brush, a base to which the brush is attached, and a locking member that comes in contact with the base and the driving shaft to lock the base to the driving shaft.

A fast detachable automatic cleaning device includes a driving assembly and a cleaning assembly. The driving assembly includes a transmission shaft and at least one protrusion block that is a formed integral with the transmission shaft. The cleaning assembly includes a seat, a bearing sleeve connected to the seat, and a cleaning portion surrounding the seat. The bearing sleeve includes an assembly space, at least one track and at least one fixing hole. The driving assembly may be in a simplified structure through the formed integral of the transmission shaft and the protrusion block. Further, the protrusion block may be securely fastened in the fixing hole to enhance the assembly strength of the transmission shaft and the bearing sleeve to solve issues of a complicated structure and insufficient strength of convention solutions.

The vacuum duster attachment is a suction-based cleaning device. The vacuum duster attachment is a rotating device. The vacuum duster attachment forms a brush. The vacuum duster attachment simultaneously: a) dislodges particles from a surface; and, b) vacuums the dislodged particles into a dirt chamber for storage. The vacuum duster attachment comprises a vacuum structure, a brush structure, and a vacuum circuit. The brush structure attaches to the vacuum structure. The vacuum circuit installs in the vacuum structure. The vacuum circuit is a control circuit that controls the operation of the vacuum duster attachment.

A roller brush assembly comprises a roller and a brush set on the roller. The roller contains an interior cavity constituted by at least two barrel bodies. Each portion of the barrel body edge is serrated shaped, and the adjacent serrated-shaped portions of the barrel both form a blade slot for positioning the serrated-shaped blade, and the blade edge corresponds to the teeth on the serrated shaped edge. A driver unit is installed in the interior cavity to make the blade move along the roller axially to cut the wrapped in the tooth groove automatically when the roller brush is turned on and off.

A autonomous cleaner includes: a cleaner body including a wheel unit for autonomous traveling; a suction unit provided to protrude from one side of the cleaner body, the suction unit sucking air containing dust; a sensing unit provided at the one side of the cleaner body; a dust container accommodated in a dust container accommodation part formed at the other side of the cleaner body, the dust container collecting dust filtered from sucked air; and a dust container cover hinge-coupled to the cleaner body to be rotatable, the dust container cover being provided to cover a top surface of the dust container when the dust container cover is coupled to the dust container.

An autonomous cleaning device is provided. The autonomous cleaning device includes: a device body; and a drive module, a cleaning module and a sensing module, wherein the drive module, the cleaning module and the sensing module are detachably assembled to the device body, respectively.

The present disclosure relates to an autonomous cleaning device and a wind path structure for use in the autonomous cleaning device. The wind path structure includes: a cleaning component for cleaning cleaned objects, a cleaned object storage container for storing the cleaned objects, and a power component for generating a wind, the cleaning component, the cleaned object storage container, and the power component being arranged sequentially in a moving direction of the autonomous cleaning device; a first-level wind duct located between the cleaning component and the cleaned object storage container, wherein the first-level wind duct is coupled with the power component such that the cleaned objects are delivered to the cleaned object storage container by the wind generated by the power component; and a second-level wind duct located between the cleaned object storage container and the power component, wherein the second-level wind duct has a bell-mouth shape and includes an inner wall, the inner wall including an arc-shaped segment facing toward the wind coming from the cleaned object storage container to direct the wind to an air inlet of the power component.