US 2026/0192343 A1 · WINDOW CLEANING MACHINE

Abstract

A window cleaning machine includes a base, a walking device, a cleaning device, an air extraction device, a first primary scraper, and a driving module. The walking device propels the window cleaning machine to move on a surface. The cleaning device includes a suction cup, and the suction cup and the surface are configured to form an enclosed space to enable the window cleaning machine to move on the surface without falling due to gravity. The air extraction device is configured to generate negative pressure in the enclosed space. A first primary scraper is located on a first side of the base. The driving module is connected to the first primary scraper to control the first primary scraper to switch between an operating state of contacting the surface and a separated state of being away from the surface to adapt to different operation conditions.

Claims20

Dependent claims

A window cleaning machine to move on a surface of a non-horizontal plane, the window cleaning machine comprising:

a base;
a walking device, coupled to the base to propel the window cleaning machine to move on the surface;
a cleaning device, coupled to the base, the base, the cleaning device and the surface configured to form an enclosed space during operation, to enable the window cleaning machine to move on the surface without falling due to gravity;
an air extraction device, coupled to the base and in communication with the enclosed space, configured to generate negative pressure in the enclosed space;
a first primary scraper, located on a first side of the base;
and
a driving module, connected to the first primary scraper to control the first primary scraper to switch between an operating state of contacting the surface and a separated state of being away from the surface.

4 more elements

Dependencies are inferred from the claim text.

Window cleaning machine

Life of this patent

Window cleaning machine

Life of this patent

Abstract

Claims20