An autonomous wall cleaner is disclosed. The autonomous wall cleaner comprises a vacuum generator, a number of suction cups, a number of wheels, a number of first actuators, a cleaning element and a controller located on a frame. The wheels are symmetrically arranged on both sides of the frame. The first actuator is capable of driving the wheels. Each suction cup is connected with the vacuum generators and has a sliding disk and an elastic bowl. When the wheels are moving on the wall, the suction cups are sucking to the wall and sliding.

An autonomous wall cleaner is disclosed. The autonomous wall cleaner comprises a vacuum generator, a number of suction cups, a number of wheels, a number of first actuators, a cleaning element and a controller located on a frame. The wheels are symmetrically arranged on both sides of the frame. The first actuator is capable of driving the wheels. Each suction cup is connected with the vacuum generators and has a sliding disk and an elastic bowl. When the wheels are moving on the wall, the suction cups are sucking to the wall and sliding.

A driving mechanism for an autonomous planar surface cleaning robot is disclosed. The driving mechanism includes a first transmission component and a second transmission component spaced apart in parallel relationship relative to the first transmission component. Each of the first and second transmission components defines first and second ends and first and second sides, wherein the first sides face each other and the second sides face away from each other in a direction transverse from the direction of motion and the first and second ends are oppositely spaced along the direction of motion. Each of the first and second transmission components are independently controllable by a control unit of the autonomous planar surface cleaning robot.

A driving mechanism for an autonomous planar surface cleaning robot is disclosed. The driving mechanism includes a first transmission component and a second transmission component spaced apart in parallel relationship relative to the first transmission component. Each of the first and second transmission components defines first and second ends and first and second sides, wherein the first sides face each other and the second sides face away from each other in a direction transverse from the direction of motion and the first and second ends are oppositely spaced along the direction of motion. Each of the first and second transmission components are independently controllable by a control unit of the autonomous planar surface cleaning robot.

A surface cleaning apparatus comprises a floor cleaning unit comprising a surface cleaning head and an upright section moveably mounted to the surface cleaning head between a storage position and a floor cleaning position and a hand vacuum cleaner removably mounted to the upright section. The upright section is connected to the surface cleaning head by a rotatable coupling. When the surface cleaning unit is mounted to the upright section, the surface cleaning unit and the upright section define an upright assembly, the upright assembly having a handle wherein, when the upright assembly is in the inclined use position, the handle is steeringly connected to the surface cleaning head whereby a user may rotate the handle clockwise or counterclockwise with respect to the surface cleaning head to assist in steering the surface cleaning head.

A roof cleaning device. The roof cleaning device includes at least a blower and an elongated tube. The blower includes a housing, a motor disposed in the housing, and a blower nozzle. The elongated tube includes a proximal end and a distal end. The proximal end is coupled to the blower nozzle to receive the air from the blower and the distal end includes an opening. The motor is operable to propel air out of the nozzle, into the elongated tube and out of the opening of the distal end of the elongated tube.

A roof cleaning device. The roof cleaning device includes at least a blower and an elongated tube. The blower includes a housing, a motor disposed in the housing, and a blower nozzle. The elongated tube includes a proximal end and a distal end. The proximal end is coupled to the blower nozzle to receive the air from the blower and the distal end includes an opening. The motor is operable to propel air out of the nozzle, into the elongated tube and out of the opening of the distal end of the elongated tube.

Devices for moving on substantially vertical surfaces, tools for cleaning substantially vertical surfaces and systems for cleaning substantially vertical surfaces are disclosed.

A building exterior wall cleaning robot is disclosed. The building exterior wall cleaning robot comprises: a robot body which cleans a building exterior wall while being suspended on ropes and has a predetermined weight; an LM guide which is coupled to the robot body and provided to have a predetermined length; and a moving unit which is connected to the ropes and moves along the LM guide to move the point on which the tension of the ropes is acting.

A building exterior wall cleaning robot is disclosed. The building exterior wall cleaning robot comprises: a robot body which cleans a building exterior wall while being suspended on ropes and has a predetermined weight; an LM guide which is coupled to the robot body and provided to have a predetermined length; and a moving unit which is connected to the ropes and moves along the LM guide to move the point on which the tension of the ropes is acting.