The present disclosure relates to fine filter part kit (63), comprising a replacement fine filter part (15) that is adapted to be mounted to a fine filter section (12) for a dust extractor (1). The fine filter part kit (63) further comprises a filter lid (16) that is adapted to be mounted to a corresponding used fine filter part (15) to be replaced, already mounted to the fine filter section (12), and thereby seal an opening (28) of a particle containing space inside the used fine filter part (15) before removing the used fine filter part (15). In this way, release of particles contained in the particle containing space into the ambient air is prevented and a secure disposal of the used fine filter part (15) is enabled.

A vacuum cleaner includes a main body and a suction nozzle that suctions up dust on the floor. The suction nozzle includes a housing, a driver, and a rotating brush. The housing includes an entrance through which the dust travels to the main body, a first shaft member, and a first rib disposed along a circumference of the first shaft member. The rotating brush includes a cylindrical body rotated by the first shaft member. The rotating brush also includes a brush member attached to an outer surface of the cylindrical body. The brush member rubs against the floor to direct the dust on the floor towards the entrance. As the brush member rotates, it also comes into contact with the first rib. The brush member includes a plurality of filaments. Some of the filaments are elastically deformed in the direction of the rotation axis upon contacting the first rib.

Provided is a robot cleaner including a main body including a suction portion disposed therein, a main wheel for moving the main body, wherein a vertical level of the main wheel varies in a vertical direction with respect to the main body, an auxiliary wheel disposed at a front portion or a rear portion of the main body, wherein a vertical level of the auxiliary wheel is fixed with respect to the main body, and a driving member assembly disposed in the main body, wherein the driving member assembly varies a vertical level of the main body from a floor face while rotating in forward and rearward directions of the main body, wherein the driving member assembly has different hitting radii when rotating forward and rearward.

An obstacle avoidance method for a self-moving robot includes: obtaining and recording, by the self-moving robot, information about an obstacle encountered during traveling, wherein the information about the obstacle includes type information and location information of the obstacle; and receiving, by the self-moving robot, an operation instruction for a specified obstacle, wherein the operation instruction is configured for instructing the self-moving robot, when detecting an obstacle of a same type as the specified obstacle in a region range labeled with the specified obstacle, not to perform an obstacle avoidance operation on the obstacle of the same type.

A method of controlling a mobile robot includes a first basic learning process of generating a first basic map based on environment information acquired in a traveling process, a second basic learning process of generating a second basic map based on environment information acquired in a separate traveling process, and a merging process of merging the first basic map and the second basic map to generate a merged map.

A cleaner head for a cleaning appliance including a housing having a front side, a rear side, and first and second sides which extend between the front side and the rear side, the housing further including a floor facing surface which extends between the front side, rear side and first and second sides which, in use, faces a surface to be cleaned. A floor engaging device is connected to the floor facing surface of the housing and which extends laterally between the first and second sides of the housing, said floor engaging device including a first portion for absorbing liquid from a surface to be cleaned; and a second portion positioned closer to either a front side or a rear side of the housing, said second portion being relatively stiff compared to the first portion.

Disclosed are devices, systems, and methods for modular vacuum cleaners. An example vacuum cleaner system includes a canister vacuum cleaner device and a robotic vacuum cleaner device, where the robotic vacuum cleaner is removably coupled to or is digitally communicable with the canister vacuum cleaner device. The canister vacuum cleaner device comprises a canister to collect debris, a vertical hollow structure that located towards a rear of the canister and coupled to the canister, a flexible extendable hose, and a housing located below the canister, wherein the housing includes a retractable electrical cord. The robotic vacuum cleaner device comprises: a storage area to collect debris, a battery, a plurality of wheels that are removably coupled to one or more motors, and a lever or a valve structured to direct debris either to the storage area or to the canister.

A robot cleaner is disclosed. The robot cleaner according to an embodiment of the present disclosure comprises: a body; a wheel cover; a drive module; and a wheel, wherein the wheel comprises: a wheel body coupled to the drive module and forming the appearance of the wheel; a plurality of tread portions arranged along the circumferential surface of the wheel body and spaced apart from each other; cutout portions formed between the tread portions at the circumferential surface of the wheel body; and a rib member comprising a ring portion received in the wheel body and rib portions protruding radially outward of the wheel from the ring portion through the cutout portions, wherein the rib member comprises an elastic material and is thus provided such that the rib portions are retracted inside the wheel body when a force is applied radially inward of the wheel.

An autonomous cleaning device, a method of control the autonomous cleaning device, and a storage medium are provided. The device includes a body, and a cleaning assembly, a driving assembly, wheels, a plurality of detection sensors and a controller on the body. The plurality of detection sensors are configured to transmit detection signals and receive reflection data of the detection signals reflected by an obstacle. The controller is configured to obtain reflection data reflected by the obstacle and received by the plurality of detection sensors, determine whether the obstacle has a gap according to the reflection data received by the detection sensors, and in response to the obstacle having the gap, control the autonomous cleaning device to travel, by sending control instructions to driving assembly, according to the reflection data at different time points and basic information of the autonomous cleaning device.

A cleaning apparatus may include a cleaning unit that is kept from moving downwardly from a predetermined limit position. The apparatus body includes a positioning member that positions the cleaning unit at the limit position. The cleaning unit includes an intake nozzle that is arranged at a position separated from the surface to be cleaned by a predetermined gap, a cam member that holds the cleaning unit at the limit position, and an operation input unit that changes the limit position to a higher position by moving the cleaning unit upward by operating the cam member.