A cleaner head for a vacuum cleaner that comprises a pair of rotary agitators and one or more wheels. The agitators rotate in opposite directions, and the wheels are moveable between a deployed position and a retracted position. The wheels contact a floor to be cleaned when in the deployed position, and the wheels are lifted clear of the floor when in the retracted position such that the cleaner head is supported on the floor solely by the agitators.

A floor cleaning head 10 comprises a body portion 12 and a pivotally attached nozzle 16. The nozzle 16 comprises resiliently flexible front and rear extending elongate blades 33, 34 depending from the underside thereof and a transversely extending suction mouth 20 disposed between the blades 33, 34, and intersected by a steam inlet duct 37 to form frontal and rear portions 20F, 20R. The orientation of the nozzle 16 is altered by a mechanism 23, such that the leading blade 33, 34 raises to allow dust and debris to pass beneath, while the trailing blade 34, 33 lowers to form a working edge against the floor surface, against which, dust, dirty water and debris gathers for removal by the induced airflow of an attached floor cleaner (not shown). The head 10 is thus configured to perform separate vacuuming and steam cleaning operations simultaneously, in a single pass.

A robot vacuum cleaner that may increase cleaning efficiency around obstacles includes a main body having an intake to suck in dust and air while the main body is driven on a floor, a shutter installed in front of the intake to be able to move from the main body toward the floor, and a shutter driver configured to supply power to move the shutter.

A mobile cleaning robot can include a body, a drive wheel, and a plurality of skids. The drive wheel can be connected to the body and can be engageable with a floor surface of an environment. The drive wheel can be operable to move the mobile cleaning robot about an environment. The skids can be separate skids that can be connected to the body and can be engageable with the floor surface to support, together with the drive wheel, the mobile cleaning robot with respect to the floor surface.

The present disclosure provides a vacuum cleaner floor brush with a height-adjustable suction inlet. The vacuum cleaner floor brush includes a floor brush main body, a rolling brush, and a rolling brush cover with an arc-shaped cross section; the rolling brush is fixedly mounted on a preset rolling brush chamber on the floor brush main body; the floor brush main body is provided with a suction inlet adjustment plate; an inner wall of the suction inlet adjustment plate is a cambered surface; a lengthwise direction of the suction inlet adjustment plate is parallel to an axial direction of the rolling brush; two opposite ends in a width direction of the suction inlet adjustment plate respectively extend towards the rolling brush cover and a bottom suction inlet of the floor brush main body; and the suction inlet adjustment plate can flip along a circumferential direction of the rolling brush. In the present disclosure, more than two kinds of different rolling brushes can be mounted on the same floor brush for use. When different rolling brushes are used on different floors, the suction inlet adjustment plate can be adjusted up and down to make the height of the suction inlet change, so as to improve the cleanness of the floor brush.

A suction nozzle, and a vacuum cleaner, and a robot cleaner includes a housing having a suction port formed on a bottom surface thereof and a suction flow path formed on an inside thereof to communicate with the suction port, and a vibration cleaning unit arranged on the suction flow path to pass therethrough air including pollutants that flows in through the suction port, wherein the vibration cleaning unit includes a vibration source, a vibration transfer frame configured to accommodate the vibration source, and a vibration bar configured to receive vibration transferred from the vibration transfer frame to resonate.

A ground brush for a vacuum cleaner includes a ground brush body, brushroll cover, and brushroll. The ground brush body has a first locking member. The brushroll cover has a lower end rotatingly connected with the ground brush body through a rotating shaft, and an upper end provided with a snapping cooperating part. When the brushroll cover is rotated to be opened at a certain angle, the first locking member cooperates with a second locking member to lock the brushroll cover to the ground brush body. The brushroll is rotatably disposed on the brushroll cover, and has a lower end connected with the lower end of the brushroll cover and an upper end provided with a snapping part, in which the snapping part is configured to cooperate with the snapping cooperating part, such that the brushroll cover can drive the brushroll to rotate relative to the ground brush body.

A nozzle includes: a housing having a chamber formed in the housing and a front opening formed on a front side of the housing; a rotation cleaning part accommodated in the chamber and to clean a floor; a partition member provided in the chamber to partition the chamber into two areas and of which at least a portion is in contact with the rotation cleaning part; a driving unit to rotate the rotation cleaning part; and a connection tube connected to the housing and configured to transfer air introduced through the front opening to a dust container of the cleaner, wherein a lower passage formed below the rotation cleaning part and an upper passage formed above the rotation cleaning part are provided in the chamber, and a portion of the partition member is recessed to define the upper passages.

A mobile cleaning robot can include a body, a drive wheel, and a wheel stop. The drive wheel can be connected to the body and can be operable to move the mobile cleaning robot about an environment. The wheel stop can be movable with respect to the body and the drive wheel between a stop position and a release position. The wheel stop can be engageable with the drive wheel in the stop position to limit vertical travel of the drive wheel with respect to the body.

The present invention relates to a robotic cleaner comprising: a cleaner body which has a plurality of guide holders provided therein and performs self-driving; and a suction nozzle which receives an agitator therein, has guide protrusions longitudinally protruding from both sidewalls thereof toward the plurality of guide holders and received in the plurality of guide holders, respectively, and is up-and-down movably and back-and-forth swingably mounted to the cleaner body, whereby the driving performance and cleaning performance of the cleaner can be improved.