Robot cleaner and automatic cleaning method

Abstract

A cleaning robot and an automatic cleaning method thereof, to implement automatic cleaning. The cleaning robot includes a lifting mechanism and a cleaning base, where the cleaning base includes a base body, a scraping mechanism disposed on the base body, and a spraying assembly provided with nozzles. The nozzles are arranged along a mopping component of the cleaning robot and formed into a structure for spraying water or mist to the mopping component. The scraping mechanism includes a scraper, and the scraper comes into contact with and moves relative to the mopping component, to scrape off the attachment on the mopping component while squeezing out the water. The lifting mechanism causes the mopping component to lift or move down by causing the mopping component to come into contact with or separate from the scraper.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]This application is a National Phase filing in the United States, under 35 USC § 371, of PCT International Patent Application PCT / CN2019 / 119512, filed on 19 Nov. 2019, which claims the priority of: Chinese Patent Application CN 201811377831.5, filed 19 Nov. 2018; Chinese Patent Application CN 201811379037.4, filed 19 Nov. 2018; and Chinese Patent Application CN201910580461.3, filed 28 Jun. 2019.[0002]These applications listed above are hereby incorporated by reference herein in their entirety and all are made a part hereof, including but not limited to those portions which specifically appear hereinafter.BACKGROUND OF THE INVENTIONField of the Invention[0003]This invention relates to a cleaning robot and an automatic cleaning method thereof.Discussion of Related Art[0004]A cleaning robot is one of intelligent household appliances, and can automatically complete floor clearing work in a room by specific artificial intelligence. Sundries on...

AI Technical Summary

Benefits of technology

This invention is a cleaning robot with a lifting mechanism and a cleaning base. The cleaning base has a scraping mechanism and a spraying assembly. The nozzles on the spraying assembly spray water or mist onto the mopping component of the robot. The scraping mechanism removes dirt or debris from the mopping component by coming into contact with it and moving relative to it while squeezing out water. The lifting mechanism causes the mopping component to lift or lower by making contact with or separating from the scraper. This invention automatically cleans the mopping cloth to prevent dirty floors.

Problems solved by technology

However, the cleaning robot usually can clear only dusts on the floor and some relatively small and relatively light smudges, and has a non-ideal clearing effect on some relatively stubborn stains.

After mopping has been performed for a relatively long time, water and smudges are attached to a flat mop, and may further cause secondary pollution to a floor during subsequent floor clearing, which instead wastes more time of a user.

Also, cleaning of the flat mop requires that the rag is detached and manually cleaned, which is laborious and insanitary and affects the user experience.

Also, in the prior art, the rag disposed at the bottom of the cleaning robot is designed parallel to the floor, the pressure of the rag on the floor is relatively small, and the mopping effect is not ideal.

Also, the current sweeping-mopping all-in-one machine cannot select mopping modes for different environments, cannot perform selective mopping, and cannot separate mopping in a bathroom or kitchen from mopping in a living room or bedroom.

However, a mopping device, such as the cleaning water tank of this cleaning robot is installed at the bottom of the robot, and the pressure on the floor is insufficient, which affects the cleaning effect of the rag.

Also, after mopping has been performed for a relatively long time, automatic cleaning cannot be performed, water and smudges are attached to the flat mop, and may further cause secondary pollution to the floor during subsequent floor clearing, which instead wastes more time of the user.

Also, after cleaning, the mopping cloth needs to be detached and manually cleaned, which affects the user experience.

Furthermore, for the existing cleaning robot, after mopping ends, the rag of cleaning robot is cleaned manually and directly flushed with water, and the water is not recycled for reuse, which causes water waste.

In the prior art, when the cleaning robot returns to a base to clean the rag or to be charged, because there is no guiding and limit structure, the main body of the cleaning robot has some location deviation during returning, and cannot accurately return to a designed location point to perform a rag cleaning or charging action, and consequently the main body of the cleaning robot cannot normally complete the next work.

Finally, when the acting force of the scraper on the rag bracket is zero, the main body of the cleaning robot stops moving, and the scraper loses the cleaning effect on the rag.

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