EP-4736724-A1 - CONTROL METHOD FOR CLEANING DEVICE

EP4736724A1EP 4736724 A1EP4736724 A1EP 4736724A1EP-4736724-A1

Abstract

The present application provides a control method for a cleaning device, which relates to the field of cleaning technology. The cleaning device includes a machine body 100 and a handle 200 connected to a rear side of the machine body 100, where the handle 200 is configured to be gripped in hand by a user, a floor brush 300 is connected to a lower end of the machine body 100, the floor brush 300 is provided with a movable first squeegee 301 and a rolling brush 302, and the first squeegee 301 is provided at a front side of the rolling brush 302; and the method includes: receiving a stop instruction of the cleaning device; if the first squeegee 301 is located at a first position in contact with a to-be-cleaned surface 400, controlling the first squeegee 301 to be lifted up to a second position, so that the first squeegee 301 is not in contact with the to-be-cleaned surface 400; controlling the cleaning device to move in a direction away from the user, and stop moving when a moving distance reaches at least a first distance. The method of the present application reduces the possibility of residual stains, and improves the cleaning effect of the to-be-cleaned surface 400.

Inventors

QIU, Huixun
LIU, KAI
HAN, WEI
SUN, PENG

Assignees

Dreame Innovation Technology (Suzhou) Co., Ltd.

Dates

Publication Date: 20260506
Application Date: 20250912

Claims (15)

A control method for a cleaning device, wherein the cleaning device comprises a machine body and a handle connected to a rear side of the machine body, and the handle is configured to be gripped in hand by a user, a floor brush is connected to a lower end of the machine body, the floor brush is provided with a movable first squeegee and a rolling brush, and the first squeegee is provided at a front side of the rolling brush; a liquid separator and a wiper strip are provided inside the floor brush, and the liquid separator is configured to supply liquid to the rolling brush so as to keep the rolling brush in a wet state, the wiper strip is configured to squeeze liquid from the rolling brush, and a suction device is further provided inside the machine body for absorbing stains on the to-be-cleaned surface; the floor brush is further provided with a second squeegee, which is provided at a rear side of the rolling brush; the method comprises: receiving (S401, S501, S601, S801) a stop instruction triggered by the user; if the first squeegee is located at a first position which is in contact with a to-be-cleaned surface, controlling (S403, S503, S603, S803) the first squeegee to be lifted up to a second position, so that the first squeegee is not in contact with the to-be-cleaned surface; controlling (S404, S608) the cleaning device to move in a direction away from the user, and stop moving when a moving distance reaches at least a first distance; when the moving distance reaches the first distance, controlling the cleaning device to move in a direction close to the user; and during the cleaning device moving in the direction close to the user, the second squeegee is in contact with the to-be-cleaned surface, and stops moving when the moving distance reaches at least a third distance; wherein when the cleaning device moves, the liquid separator is controlled to stop supplying liquid and the suction device is kept in a suction state, so that the rolling brush is capable of absorbing stains on the to-be-cleaned surface during a movement of the cleaning device.
The method according to claim 1, when the cleaning device moves in the direction away from the user, a suction force of the suction device is controlled to be greater than or equal to 10000 Pa.
The method according to claim 1, wherein the wiper strip is configured to be movable relative to the rolling brush, and when the cleaning device moves in the direction away from the user, the wiper strip is controlled to move away from the rolling brush, and a suction force of the suction device is controlled to be greater than or equal to 10000 Pa.
The method according to claim 1, wherein the first distance is configured to be 1/4-3/4 of circumference of the rolling brush.
The method according to claim 1, wherein the first distance is configured to be a minimum distance from a contact point of the rolling brush with the to-be-cleaned surface to a contact point of the first squeegee with the to-be-cleaned surface, the third distance is configured to be a sum of the first distance and a second distance, and the second distance is configured to be a minimum distance from a contact point of the rolling brush with the to-be-cleaned surface to a contact point of the second squeegee with the to-be-cleaned surface.
The method according to claim 1, wherein the first distance is configured to be a minimum distance from a contact point of the rolling brush with the to-be-cleaned surface to a contact point of the first squeegee with the to-be-cleaned surface, when the cleaning device moves in the direction close to the user by at least the third distance, an angle between a side of the machine body facing towards the user and the to-be-cleaned surface is between 70 degrees and 100 degrees.
The method according to claim 1, wherein the first distance is configured to be a minimum distance from a contact point of the rolling brush with the to-be-cleaned surface to a contact point of the first squeegee with the to-be-cleaned surface, the second squeegee is a movable squeegee; if the second squeegee is located a third position which is in contact with the to-be-cleaned surface, when the moving distance reaches the first distance and before controlling the cleaning device to move in the direction close to the user, the method further comprises: controlling the second squeegee to be lifted up to a fourth position, so that the second squeegee is not in contact with the to-be-cleaned surface.
The method according to claim 1, the method further comprises: if the first squeegee is in the second position which is not in contact with the to-be-cleaned surface, controlling (S405, S506) the first squeegee to descend to the first position, so that the first squeegee is in contact with the to-be-cleaned surface; controlling (S406) the cleaning device to move in a direction close to the user, and when the moving distance reaches at least a fourth distance, controlling the first squeegee to be lifted up to the second position; wherein the fourth distance is less than or equal to the first distance; and controlling (S407) the cleaning device to move in the direction away from the user, and stop moving when the moving distance reaches at least the first distance.
The method according to claim 8, wherein the machine body is further provided with a second squeegee, which is provided at a rear side of the rolling brush and in contact with the to-be-cleaned surface; after controlling (S507) the cleaning device to move in the direction close to the user, the method further comprises: when the moving distance reaches at least a second distance, controlling the first squeegee to be lifted up, wherein the second distance is a minimum distance from a contact point of the rolling brush with the to-be-cleaned surface to a contact point of the second squeegee with the to-be-cleaned surface; and controlling (S509) the cleaning device to move in the direction away from the user, and stop moving when the moving distance reaches at least the first distance.
The method according to claim 8, wherein the machine body is further provided with a second squeegee, and the second squeegee is a movable squeegee; if the second squeegee is located at a third position which is in contact with the to-be-cleaned surface, when controlling the first squeegee to descend to the first position, the method further comprises: controlling the second squeegee to be lifted up to a fourth position, so that the second squeegee is not in contact with the to-be-cleaned surface.
The method according to claim 1, wherein before controlling the first squeegee to be lifted up to the second position, the method further comprises: maintaining (S701) the first squeegee at the first position which is in contact with the to-be-cleaned surface, and controlling the cleaning device to move in a direction close to the user; and when the moving distance reaches at least a fifth distance, controlling (S702) the first squeegee to be lifted up to the second position, wherein the fifth distance is less than the first distance.
The method according to claim 8, wherein the machine body is further provided with a second squeegee, which is provided at a rear side of the rolling brush and in contact with the to-be-cleaned surface; after controlling the cleaning device to move in the direction close to the user, the method further comprises: when the moving distance reaches at least a second distance, controlling the first squeegee to be lifted up to a second position, wherein the second distance is a minimum distance from a contact point of the rolling brush with the to-be-cleaned surface to a contact point of the second squeegee with the to-be-cleaned surface.
The method according to claim 12, wherein the second squeegee is a movable squeegee; if the second squeegee is located at a third position which is in contact with the to-be-cleaned surface, when controlling the first squeegee to descend to the first position, the method further comprises: controlling the second squeegee to be lifted up to a fourth position, so that the second squeegee is not in contact with a to-be-cleaned surface.
The method according to claim 1, wherein the floor brush is further provided with a power-assisting wheel, wherein the power-assisting wheel is provided at the rear side of the rolling brush; the controlling the cleaning device to move in the direction away from the user, comprising: controlling the rolling brush and/or the power-assisting wheel to rotate in a first direction so as to enable the cleaning device to move in the direction away from the user.
The method according to claim 1, wherein the floor brush is further provided with a power-assisting wheel, and the power-assisting wheel is provided at the rear side of the rolling brush; and the controlling the cleaning device to move in the direction close to the user, comprising: controlling the rolling brush and/or the power-assisting wheel to rotate in a second direction so as to enable the cleaning device to move in the direction close to the user.

Description

TECHNICAL FIELD The present application relates to the field of cleaning technology, and in particular, to a control method for a cleaning device. BACKGROUND The cleaning device can clean the floor, and a cleaning task thereof can include performing wet cleaning to the floor. For example, a floor scrubber includes a liquid sprayer and a rolling brush, where the floor is wetted by the liquid sprayer, and then wetted stains on the floor is cleaned by the rolling brush, thereby realizing the wet cleaning function for the floor. In order to reduce stains, existing floor scrubbers are equipped with a squeegee at a front end of the rolling brush, so that during a backward pulling process, the floor scrubber can use the squeegee to clean up the residual stains and impurities on the floor. However, while adding the squeegee at the front end, it also brings a risk of increased stain pollution. For example, after the squeegee at the front end scrapes the stains, it will also carry a certain amount of stains, which also easily increase the risk of pollution. SUMMARY The present application provides a control method for a cleaning device, which is used to address the problem that there are inadequacies of cleaning methods for residual stains in the existing floor scrubber. In a first aspect, the present application provides a control method for a cleaning device, and the cleaning device includes a machine body and a handle connected to a rear side of the machine body, where the handle is configured to be gripped in hand by a user, a floor brush is connected to a lower end of the machine body, the floor brush is provided with a movable first squeegee and a rolling brush, and the first squeegee is provided at a front side of the rolling brush; where the method includes: receiving a stop instruction triggered by the user;if the first squeegee is located at a first position which is in contact with a to-be-cleaned surface, controlling the first squeegee to be lifted up to a second position, so that the first squeegee is not in contact with the to-be-cleaned surface;controlling the cleaning device to move in a direction away from the user, and stop moving when a moving distance reaches at least a first distance. In the prior art, the cleaning device often has a problem of residual stains. For example, the floor scrubber, due to the high liquid content of the rolling brush itself, which will leave more stains on the cleaning surface after cleaning. A method for solving the residual stains has emerged in the current existing technology. A front end of the floor brush is provided with a movable squeegee, which can be controlled to be in contact with or separated from the to-be-cleaned surface. When being pushed forwards, the front squeegee is lifted up, and when being pulled backwards, the front squeegee descends and is in contact with the to-be-cleaned surface so as to scrape and clean the to-be-cleaned surface, thereby significantly improving the problem of the residual stains on the cleaning surface. However, although the problem of the residual stains on the cleaning surface is improved, due to the fact that the front squeegee itself can be contaminated with some liquid or dirt and there is a certain distance between the front squeegee and the rolling brush cleaning area, so that a cleaning dead zone is easily formed in a distance between the front squeegee and the rolling brush cleaning area after the floor brush stops moving, so that a section of stain or dirt area will be formed on the cleaning surface. Besides, for example, the front squeegee will drip liquid towards the to-be-cleaned surface after the cleaning is completed and meanwhile there is a certain gap between the front squeegee and the rolling brush, so that the above gap belongs to a dead zone where the front squeegee cannot clean at the moment before stopping. At the same time, it can be conceived that the users usually pull the floor scrubber close to themselves after pressing the stop button, so as to retract the floor scrubber. However, the front squeegee is provided at the front side of the floor brush, so that after the front squeegee drips the stains, or after the stains remain in the area between the front squeegee and the rolling brush, firstly, it is difficult for the users to observe them during shutdown. At the same time, according to behavioral habits, the users will only find the residue when they pull the floor scrubber towards themselves. Secondly, when the users want to clean again, they can only push the floor scrubber forward again or turn on the floor scrubber again for targeted cleaning the stains, so that the experience and visual perception are very poor. In the present solution, by obtaining the stop instruction, the cleaning device is controlled to move, so as to clean up the residual stains at the above-mentioned position. When the user presses the stop button, the cleaning device acquires the stop instruction, and at this moment, if