CN114938929A

CN114938929A - Self-cleaning method

Info

Publication number: CN114938929A
Application number: CN202210636420.3A
Authority: CN
Inventors: 陈铄庭; 万旭成
Original assignee: Shenzhen Zhuiguang Zhizao Technology Co ltd
Current assignee: Shenzhen Zhuiguang Zhizao Technology Co ltd
Priority date: 2022-06-07
Filing date: 2022-06-07
Publication date: 2022-08-26

Abstract

The invention relates to a self-cleaning method, which is used for automatically cleaning a cleaning roller of cleaning equipment on a base, wherein the base is provided with a cleaning groove, at least part of the cleaning roller is contained in the cleaning groove, and the cleaning equipment comprises a liquid supply device. The self-cleaning method comprises the following steps: controlling the liquid supply device to supply liquid to the cleaning roller until the liquid in the cleaning tank reaches a preset liquid level; controlling the cleaning roller to rotate at a first speed for a first length of time; and controlling the cleaning roller to rotate forwards for a second time length at a second speed and rotate backwards for a third time length, and repeating the operation at least twice, wherein the second speed is less than the first speed. The self-cleaning method comprises the steps of supplying liquid to the cleaning roller through the liquid supply device, controlling the cleaning roller to rotate at a first speed, controlling the cleaning roller to rotate positively and negatively at a second speed for at least two times to realize bidirectional rotation, playing a role in swinging and shaking, enabling stains to fall off fully, cleaning the stains in different directions, improving the self-cleaning effect of the cleaning roller, and reducing or avoiding the residues of the stains.

Description

Self-cleaning method

Technical Field

The invention relates to the technical field of cleaning equipment, in particular to a self-cleaning method.

Background

The hand-held cleaning device needs to be self-cleaning (self-cleaning) after cleaning is completed. Generally, the self-cleaning method is to start all procedures of the handheld cleaning device, that is, firstly, clean water in the clean water tank is output to the cleaning roller, then the cleaning roller runs at a high speed, and meanwhile, the fan works to suck sewage on the cleaning roller into the sewage tank, and thus, the self-cleaning is completed after about 1 minute.

If the cleaning roller of the handheld cleaning device is dirty or a large amount of mud and dust are attached to the cleaning roller, the self-cleaning mode can achieve a certain cleaning effect, but the cleaning roller cannot be directly cleaned, and stain residues are easily caused. If want the thorough cleaning, still need the user to take out manual washing behind the cleaning roller, be unfavorable for user experience.

Disclosure of Invention

Based on the above, a self-cleaning method is provided, which aims to improve the self-cleaning effect of the cleaning roller and reduce or avoid the residue of dirt.

A self-cleaning method for automatically cleaning a scrub roller of a cleaning apparatus on a base, the base having a cleaning bath in which at least a portion of the scrub roller is received, the cleaning apparatus including a liquid supply, the self-cleaning method comprising:

controlling the liquid supply device to supply liquid to the cleaning roller until the liquid in the cleaning tank reaches a preset liquid level;

controlling the scrub roller to rotate at a first speed for a first length of time; and

and controlling the cleaning roller to rotate forwards for a second time length at a second speed and rotate backwards for a third time length, and repeating the operation at least twice, wherein the second speed is less than the first speed.

In one embodiment, the self-cleaning method further comprises:

and controlling the cleaning roller to rotate in the process of supplying liquid by the liquid supply device.

In one embodiment, the cleaning apparatus further comprises a recycling device, and the self-cleaning method further comprises:

after the normal rotation and the reverse rotation of the cleaning roller are repeatedly performed, the recovery device is started until the recovery of the liquid in the cleaning tank is completed.

In one embodiment, the self-cleaning method further comprises:

controlling the cleaning roller to rotate during the recovery process of the recovery device; or alternatively

And after the fourth time length is recovered by the recovery device, controlling the cleaning roller to rotate until the recovery is finished.

In one embodiment, the self-cleaning method further comprises:

after the recovery device finishes recovering, the liquid supply device, the cleaning roller and the recovery device are controlled to work at full power at the same time until the liquid in the liquid supply device is completely supplied.

In one embodiment, the base comprises a housing and a drying device, the cleaning tank is arranged on the housing, an air outlet capable of being opened or closed is formed in the side wall of the cleaning tank, and the drying device is arranged in the housing and used for outputting a drying air flow to the air outlet;

the self-cleaning method further comprises:

and after the liquid in the liquid supply device is supplied, opening the air outlet, and starting the drying device until the cleaning roller is dried.

In one embodiment, the self-cleaning method further comprises:

controlling the cleaning roller to rotate at the same time or after the drying device is started.

In one embodiment, the self-cleaning method further comprises:

and controlling the recovery device to work at the same time of or after the drying device is started.

In one embodiment, the first speed is 800 to 1000 revolutions per minute and the first period of time is 15 to 30 seconds.

In one embodiment, the second speed is between 100 revolutions per minute and 300 revolutions per minute, the second time period is between 10 seconds and 15 seconds, and the third time period is between 10 seconds and 15 seconds.

In one embodiment, the preset level is a level at which at least one third of the scrub roller is submerged.

According to the self-cleaning method, the liquid is supplied to the cleaning roller through the liquid supply device, the cleaning roller is wetted and at least part of the cleaning roller is soaked in the liquid in the cleaning tank, the cleaning roller is controlled to rotate at the first speed, so that dust, particles, hair and the like on the cleaning roller fall and fall into the liquid, the cleaning roller is controlled to rotate positively and negatively at least twice at the second speed to realize bidirectional rotation, the swinging and shaking effects are achieved, the dust, particles, hair and the like on the cleaning roller fall fully, dirt and stains are cleaned in different directions, the self-cleaning effect of the cleaning roller is improved, the residue of the dirt and stains is reduced or avoided, the deep cleaning is realized, the manual cleaning after the cleaning of a user is not needed, and the user experience is improved.

Drawings

FIG. 1 is a functional block diagram of a cleaning system in accordance with an embodiment of the present invention;

FIG. 2 is a functional block diagram of a cleaning device of the cleaning apparatus of FIG. 1;

FIG. 3 is a schematic block diagram of a liquid supply device of the cleaning apparatus of FIG. 1;

FIG. 4 is a schematic block diagram of a recovery unit of the cleaning apparatus of FIG. 1;

FIG. 5 is a schematic structural view of the base of FIG. 1;

FIG. 6 is a front view of the base of FIG. 5;

FIG. 7 is a top view of the base of FIG. 6;

FIG. 8 is a side view of the switch assembly of the base of FIG. 5 in an open state;

FIG. 9 is a side view of the switch assembly of the base of FIG. 5 in a closed state;

FIG. 10 is a partial cross-sectional view of the base of FIG. 5;

fig. 11 is a flow chart of a self-cleaning method of a cleaning device of the cleaning system of fig. 1.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "above," and "over" a second feature may be directly on or obliquely above the second feature, or simply mean that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

Referring to fig. 1, fig. 1 illustrates a functional block diagram of a cleaning system in an embodiment of the present invention, and the cleaning system 100 provided in an embodiment of the present invention includes a cleaning device 200, the cleaning device 200 being used for cleaning a floor, and a base 300, the base 300 being used for maintaining the cleaning device 200. The cleaning apparatus 200 includes, but is not limited to, a hand-held cleaning apparatus and a self-moving cleaning apparatus (cleaning robot). The base 300 may provide the function of housing and supporting the cleaning device 200 so that a user may place the hand-held cleaning device on the base 300 after using it. Alternatively, the self-moving cleaning apparatus may automatically return to, and rest on, the base 300 after floor cleaning is completed.

In this embodiment, the cleaning device 200 is a wet cleaning device, specifically a floor scrubber or a floor washing device that uses a scrub roller to scrub the floor, and the scrub roller or the floor may be wetted first and then the floor may be scrubbed. The base 300 correspondingly provides a washing function to wash the cleaning roller of the cleaning device 200, and the washing manner can be that the cleaning roller is washed by a washing structure arranged on the base 300, or the cleaning roller of the cleaning device 200 is self-cleaned under the cooperation of the base 300. It is understood that in other embodiments, the base 300 may also provide a charging function for charging the power source of the cleaning device 200, an emptying function for suctioning and discharging dirt collected in the cleaning device 200, such as hair, debris, dust, dirt, and the like, without frequently removing the dirt collected in the cleaning device 200, or other functions.

In this embodiment, the cleaning apparatus 200 is a handheld cleaning apparatus, and includes a first controller 210, a cleaning device 220, a liquid supply device 230, and a recovery device 240, wherein the first controller 210 is electrically connected to the cleaning device 220, the liquid supply device 230, and the recovery device 240, respectively. The first controller 210 is used for controlling the cleaning device 220 to work, and further controlling the cleaning roller of the cleaning device 220 to rotate, so as to clean the floor. The first controller 210 is used for controlling the liquid supply device 230 to supply cleaning liquid to the cleaning roller of the cleaning device 220 to wet the cleaning roller. The first controller 210 is used for controlling the recycling device 240 to operate, so as to suck and recycle the dirt generated by cleaning the floor, including but not limited to hair, debris, dust, mud and sewage generated by cleaning, to achieve the effect of cleaning the floor. It will be appreciated that in other embodiments, the cleaning device 200 is a cleaning robot, i.e., it further comprises a self-walking mechanism (not shown) coupled to the first controller 210, the first controller 210 controlling the self-walking mechanism to operate to effect autonomous movement of the cleaning device 200 to accomplish automatic (intelligent) cleaning.

Referring to fig. 2, fig. 2 shows a schematic block diagram of a cleaning device of the cleaning apparatus of the cleaning system in the present embodiment, and the cleaning device 220 includes a driving assembly 222 and a cleaning roller 224, and the driving assembly 222 is connected to the cleaning roller 224 for driving the cleaning roller 224 to rotate. The cleaning roller 224, also called a roller type cleaning member, a rolling brush or a roller brush, is usually provided with one or a combination of two or more of fluff, bristles, sponge and cleaning cloth on its surface to scrub the floor.

Further, the driving assembly 222 includes a first motor (not shown) and a transmission assembly (not shown) respectively connected to a rotation shaft of the first motor and the cleaning roller 224. The shaft of the first motor rotates to transmit torque to the transmission assembly, which outputs torque to the scrub roller 224 to drive rotation of the scrub roller 224. The transmission assembly may be, without limitation, a gear transmission assembly (reduction gearbox) or a belt transmission assembly. The first motor is electrically connected to the first controller 210, that is, the first controller 210 can control the rotation of the first motor, and further can control the rotation speed and the rotation direction of the cleaning roller 224.

Referring to fig. 3, fig. 3 shows a schematic block diagram of a liquid supply device of a cleaning apparatus of the cleaning system according to the embodiment, the liquid supply device 230 includes a liquid supply tank 232, a liquid pump 234, and a liquid supply member 236, the liquid supply tank 232 is communicated with the liquid pump 234 through a pipeline, and the liquid pump 234 is also communicated with the liquid supply member 236 through a pipeline. The liquid supply tank 232 stores therein clean water or cleaning liquid. Liquid pump 234 may pump liquid from supply tank 232 to supply 236. The liquid supply member 236 is provided with a liquid outlet (not shown) disposed corresponding to the scrub roller 224, and the liquid outlet outputs the liquid onto the scrub roller 224. The liquid pump 234 is electrically connected to the first controller 210, that is, the first controller 210 can control the on/off of the liquid pump 234 and the output flow rate. The liquid pump 234 may be, but is not limited to, a peristaltic pump. It is understood that in other embodiments, the liquid pump 234 may be replaced by an air pump (not shown), i.e., the air pump is in communication with the liquid supply tank 232 via a pipeline, the liquid supply tank 232 is in communication with the liquid supply 236 via a pipeline, and the air pump inputs air into the liquid supply tank 232 and pumps liquid to the liquid supply 236 as the air pressure in the liquid supply tank 232 increases.

Referring to fig. 4, fig. 4 shows a schematic block diagram of a recovery device of the cleaning apparatus of the cleaning system in the present embodiment, the recovery device 240 includes a fan assembly 242, a recovery tank 244, and a recovery passage 246, the fan assembly 242 is communicated with the recovery tank 244, the recovery tank 244 is communicated with the recovery passage 246, and the recovery passage 246 has a recovery inlet (not shown) disposed corresponding to the cleaning roller 224. The fan assembly 242 is operated to suck air in the recovery tank 244, so that a negative pressure is formed at the recovery inlet of the recovery passage 246, and the sewage and garbage raised by the cleaning roller 224 are sucked into the recovery passage 246 through the recovery inlet, and then are introduced into the recovery tank 244 through the recovery passage 246. The fan assembly 242 is electrically connected to the first controller 210, that is, the first controller 210 can control the start or stop and the rotation speed of the fan assembly 242, so as to control the suction force of the recycling device 240. It should be noted that in other embodiments, the inlet of the recycling bin 244 may be disposed corresponding to the cleaning roller 224 without disposing the recycling channel 246, i.e., the sewage and garbage lifted by the cleaning roller 224 are directly sucked into the recycling bin 244.

In this embodiment, the cleaning device 200 includes a cleaning head (not shown) and a handheld body (not shown), the handheld body is rotatably connected to the cleaning head, and a user operates the handheld body to move the cleaning head, so as to implement handheld cleaning. Wherein, the cleaning head comprises the cleaning device 220, the liquid supply part 236 of the liquid supply device 230 and the part of the recovery channel 246 of the recovery device 240, and the body comprises the liquid supply tank 232 of the liquid supply device 230, the liquid pump 234 of the liquid supply device 230, the fan assembly 242 of the recovery device 240, the recovery tank 244 of the recovery device 240 and the part of the recovery channel 246 of the recovery device 240. It will be appreciated that in other embodiments, the liquid pump 234 of the liquid supply 230 may also be provided on the cleaning head.

Referring to fig. 5 to 7, fig. 5 is a schematic structural diagram illustrating a base of the cleaning system of the present embodiment, fig. 6 is a front view illustrating the base of fig. 5, and fig. 7 is a plan view illustrating the base of fig. 6, wherein the base 300 includes a housing 310, a second controller 320 (see fig. 1), a drying device 330, and a switch assembly 340. The housing 310 is provided with a cleaning tank 312, the cleaning tank 312 is used for accommodating at least a portion of the cleaning roller 224, and an air outlet 316 is disposed on a sidewall 314 of the cleaning tank 312. The second controller 320 is disposed in the housing 310 and electrically connected to the drying device 330 and the switch assembly 340 respectively to control the operation of the drying device and the switch assembly. The drying device 330 is disposed in the casing 310, and the drying device 330 has an air outlet (not shown) for outputting a drying air flow, and the air outlet is disposed corresponding to the air outlet 316. As for the specific structure of the drying device 330, reference may be made to the prior art, which is not described herein. The switch assembly 340 is disposed in the housing 310 for opening or closing the air outlet 316, and the detailed structure thereof is described below.

After the cleaning roller 224 of the cleaning apparatus 200 is cleaned, the second controller 320 controls the drying device 330 to start, and controls the switch assembly 340 to open the air outlet 316, so that the drying air flow generated by the drying device 330 is output from the air outlet and blown to the cleaning roller 224 in the cleaning tank 312 through the air outlet 316, thereby drying the cleaned cleaning roller 224. It should be noted that the first controller 210 of the base 300 and the second controller 320 of the cleaning device 200 can communicate through sensors or electrode pads, for example, by using an infrared sensor to transmit and receive infrared signals.

The depth of the cleaning tank 312 is greater than or equal to 1/3, which is the diameter of the cleaning roller 224, so that the liquid in the cleaning tank 312 can submerge the cleaning roller 224 to improve the cleaning effect. The liquid in the cleaning tank 312 may be discharged from the liquid supply device 230 and accumulated, may be poured from the outside, or may be discharged from a water tank provided in the base 300.

Furthermore, the depth of the cleaning tank 312 is 1/2-2/3 of the diameter of the cleaning roller 224, and most of the cleaning roller 224 can be immersed in the liquid in the cleaning tank 312, so that the cleaning roller 224 is fully soaked, and the cleaning effect of the cleaning roller 224 is further improved.

In this embodiment, the cleaning tank 312 has two opposite sidewalls 314, and each sidewall 314 of the two sidewalls 314 has at least one air outlet 316. The cleaning apparatus 200 has two cleaning rollers 224, wherein all of the air outlets 316 on one of the two side walls 314 are disposed corresponding to one cleaning roller 224 of the cleaning apparatus 200, and all of the air outlets 316 on the other side wall 314 are disposed corresponding to the other cleaning roller 224 of the cleaning apparatus 200. Two air outlets 316 are disposed on each sidewall 314, however, the number of the air outlets 316 is not limited thereto. It is understood that in other embodiments, when the cleaning apparatus 200 has only one cleaning roller 224, the at least one air outlet 316 may be provided only on one sidewall 314.

Referring to fig. 8 to 10, fig. 8 shows a side view of the base of the cleaning system in the present embodiment in an open state, fig. 9 shows a side view of the base of the cleaning system in the present embodiment in a closed state, and fig. 10 shows a partial cross-sectional view of the base of the cleaning system in the present embodiment, the switch assembly 340 includes a driving mechanism 350 and a barrier 360, the barrier 360 is connected to the driving mechanism 350, and the driving mechanism 350 is used for driving the barrier 360 to move along the axial direction of the cleaning roller 224 to open or close the air outlet 316. When the cleaning tank 312 cleans the cleaning roller 224, the switch assembly 340 closes the air outlet 316 to prevent liquid from entering the air outlet 316; when the cleaning tank 312 finishes cleaning the cleaning roller 224, the switch assembly 340 opens the air outlet 316, and the drying device 330 operates to dry the cleaning roller 224. It is understood that in other embodiments, the switch assembly 340 may be a solenoid switch, a rotary switch structure, or other switch structures.

The driving mechanism 350 includes a second motor 352 and a screw rod 354, the screw rod 354 is axially connected with a rotating shaft of the second motor 352, and a gear piece 360 is in threaded connection with the screw rod 354. The second motor 352 is electrically connected to the second controller 320, that is, the second controller 320 controls the second motor 352 to rotate forward or backward, so as to link the screw rod 354 to rotate, and the baffle 360 moves along the axial direction of the screw rod 354 to open or close the air outlet 316 due to being limited by the sidewall 314 of the housing 310. It is understood that in other embodiments, the driving mechanism 350 may be an electrically controlled telescopic rod structure, which can also control the axial movement of the barrier 360 to open or close the air outlet 316.

In order to improve the sealing effect of the air outlet 316, a side of the barrier 360 facing the air outlet 316 is provided with a sealing ring 362, and the sealing ring 362 is used for abutting against the inner side periphery of the air outlet 316, that is, when the barrier 360 closes the air outlet 316, the sealing ring 362 seals the inner side periphery of the air outlet 316 to prevent liquid from entering the interior of the housing 310.

A first guiding structure 364 is disposed on a side of the blocking member 360 facing the air outlet 316, and the first guiding structure 364 is located in the sealing ring 362. The inner side of the side wall 314 is provided with a second guide structure 316. The first guide structure 364 is adapted to the second guide structure 316 to guide movement along the second guide structure 316. Since the first guiding structure 364 is located in the sealing ring 362, when the blocking member 360 closes the air outlet 316 under the condition of satisfying the guiding movement, the first guiding structure 364 is located in the air outlet 316, and will not interfere with the sealing of the air outlet 316 by the sealing ring 362.

Further, first guide structure 364 is the direction sand grip, and second guide structure 316 is the direction recess, and the side of sealing washer 362 sets up with the medial surface interval of lateral wall 314, because sealing washer 362 and lateral wall 314 contactless, when the direction sand grip of keeping apart piece 360 moves along the direction recess of lateral wall 314, sealing washer 362 can not take place the friction with lateral wall 314, has improved the direction effect, has also avoided influencing the sealed effect of sealing washer 362. The guide groove and the air outlet 316 are arranged at intervals, that is, the guide groove does not extend to the air outlet 316, so that the influence of the guide groove on the sealing effect of the sealing ring 362 on the air outlet 316 is avoided.

In this embodiment, two air outlets 316 are disposed on each of the two opposite sidewalls 314, and the two air outlets 316 are distributed along the axial direction of the cleaning roller 224; therefore, the switch assembly 340 includes two blocking members 360, the two blocking members 360 are both mounted on a screw rod 354, the two blocking members 360 on the screw rod 354 are disposed corresponding to the two air outlets 316 on a sidewall 314, and simultaneously open or close the two air outlets 316. Moreover, the screw rod 354 is further provided with two limiting members 356, and when the baffle member 360 closes the air outlet 316, the baffle member is limited by the limiting members 356, so as to prevent improper displacement. It is understood that, in other embodiments, two switch assemblies 340 may be used for two air outlets 316 on one sidewall 314, that is, only one barrier 360 is provided for one switch assembly 340, and only one air outlet 316 is controlled to be opened or closed by one switch assembly 340.

Referring to fig. 11, fig. 11 shows a flow chart of a self-cleaning method of a cleaning device of the cleaning system in the present embodiment, the self-cleaning method includes the following steps:

s100, controlling the liquid supply device 230 to supply liquid to the cleaning roller 224 until the liquid in the cleaning tank 312 reaches a preset liquid level;

s200, controlling the cleaning roller 224 to rotate at a first speed for a first time length; and

and S300, controlling the cleaning roller 224 to rotate forwards for a second time length at a second speed, rotate backwards for a third time length, and repeating the operation at least twice, wherein the second speed is less than the first speed.

The liquid supply device 230 supplies liquid to the cleaning roller 224 to wet the cleaning roller 224, at least part of the cleaning roller 224 is soaked in the liquid in the cleaning tank 312, the cleaning roller 224 is controlled to rotate at a first speed to enable dust, particles, hair and the like on the cleaning roller to fall and fall into the liquid, the cleaning roller 224 is controlled to rotate positively and negatively at a second speed at least twice to realize bidirectional rotation, the swinging and shaking effects are achieved, the dust, particles, hair and the like on the cleaning roller can fall sufficiently, dirt and stains can be cleaned in different directions, the self-cleaning effect of the cleaning roller 224 is improved, dirt residues are reduced or avoided, deep cleaning is realized, manual cleaning after a user takes out the cleaning roller is not needed, and user experience is improved.

In the present embodiment, the first speed is 800 rpm to 1000 rpm to realize high-speed rotation of the cleaning roller 224, but the first speed is not limited to the rotation speed range and may be adjusted according to actual requirements. The first time period is 15 seconds to 30 seconds, however, the first time period is not limited to the numerical range, and may be set according to actual needs.

In this embodiment, the second speed is 100 rpm to 300 rpm, which is favorable for realizing bidirectional rotation in the rotation speed range, but the second speed is not limited to the rotation speed range and can be adjusted according to actual requirements. The second time period is 10 seconds to 15 seconds, and the third time period is 10 seconds to 15 seconds, and is not limited to this numerical range. The cleaning roller 224 repeats the forward and reverse rotation twice, and the self-cleaning efficiency can be improved. Here, the cleaning roller 224 rotates forward and rotates backward. It is understood that in other embodiments, the cleaning roller 224 may be repeatedly rotated forward and backward three times, four times or more in order to improve the cleaning effect. In other embodiments, the cleaning roller 224 rotates forward as backward and rotates backward as forward.

The predetermined level is a level at which at least one third of the scrub roller 224 is submerged, i.e., at least one third of the scrub roller 224 is submerged in the cleaning liquid within the cleaning bath 312, facilitating a wetting, preliminary rinsing of the scrub roller 224.

To further enhance the cleaning effect, the predetermined liquid level is a liquid level for immersing one half to two thirds of the cleaning roller 224, i.e. one half to two thirds (1/2-2/3) of the cleaning roller 224 is immersed in the cleaning liquid in the cleaning tank 312.

In this embodiment, the self-cleaning method further includes the following steps:

s102, controlling the cleaning roller 224 to rotate in the process of supplying liquid by the liquid supply device 230. That is, the cleaning roller 224 is rotated while supplying the liquid to the cleaning roller 224, so that the cleaning roller 224 is sufficiently wetted, and the cleaning liquid is accumulated in the cleaning bath 312, and at this time, the liquid level slowly overflows the cleaning roller 224, and the cleaning roller 224 rotates to pump up the cleaning liquid, so that the dust, particles, hair, etc. contained in the bristles of the cleaning roller 224 are dropped. In this step, the rotation speed of the cleaning roller 224 is not limited, and any speed may be used. It may be at a slower speed, i.e., less than the second speed, where the rotation is smooth, facilitating adequate wetting of the scrub roller 224. It is understood that in other embodiments, the cleaning roller 224 may be controlled to rotate before or after the liquid supply device 230 supplies liquid, which may also achieve the above-mentioned effects.

s400, after the normal rotation and the reverse rotation of the cleaning roller 224 are repeatedly performed, the recovery device 240 is started until the recovery of the liquid in the cleaning tank 312 is completed. That is, the fan unit 242 of the recovery device 240 operates, and the dirty liquid and other garbage generated after the cleaning roller 224 in the cleaning tank 312 is cleaned are sucked into the recovery tank 244, and after the recovery is completed, the fan unit 242 stops operating. In this embodiment, the fan assembly 242 operates at a high speed, which is beneficial to improving the self-cleaning efficiency, and the suction force is larger, so as to better suck dirty liquid and other garbage. Of course, the fan assembly 242 may also operate at a medium speed, which may also achieve the recycling effect.

Further, the self-cleaning method further comprises the following steps:

s402, in the process of recovering by the recovery device 240, the cleaning roller 224 is controlled to rotate. During recovery, cleaning roller 224 rotates, and the particulate matter (dust, silt, etc.) deposited in cleaning tank 312 is lifted and sucked into recovery tank 244. The rotation speed of the cleaning roller 224 is not limited as long as it can lift the precipitated particulate matter. It is understood that, in other embodiments, the cleaning roller 224 may be controlled to rotate before the recycling device 240 recycles the cleaning roller or after the recycling device 240 recycles the fourth time period until the recycling is finished, and the above effects may also be achieved. The fourth time period may be, but is not limited to, 5 seconds, which may provide time for the fan assembly 242 to evacuate the air from the recovery tank 244 and recovery passage 246.

and S500, after the recovery device 240 finishes recovering, simultaneously controlling the liquid supply device 230, the cleaning roller 224 and the recovery device 240 to work at full power until the liquid in the liquid supply device 230 is completely supplied. The liquid supply device 230, the cleaning roller 224 and the recovery device 240 can work at full power to suck residual sewage on the cleaning roller 224 into the recovery tank 244, so that the cleaning roller 224 can be thoroughly cleaned.

It should be noted that full power operation is maximum power operation. Generally, the cleaning apparatus 200 is provided with at least three-gear cleaning modes: a high speed cleaning mode, a medium speed cleaning mode, and a low speed cleaning mode. The user selects different cleaning modes according to different floor types and dirt degrees, and in the high-speed cleaning mode, the cleaning roller 224 works at the maximum rotating speed, the liquid supply device 230 works at the maximum flow rate, and the recovery device 240 works at the maximum suction force. Thus, this full power operation corresponds to a high speed cleaning mode.

s600, after the liquid in the liquid supply device 230 is completely supplied, the air outlet 316 is opened, and the drying device 330 is started until the cleaning roller 224 is dried. That is, after the liquid supply device 230 finishes supplying liquid, the second motor 352 drives the screw rod 354 to rotate, so that the two blocking members 360 on the screw rod 354 open the two air outlets 316 on one side of the cleaning tank 312, and the drying device 330 blows hot air through the air outlets 316 onto the cleaning roller 224 on one side of the cleaning device 200, so that the cleaning roller 224 can be quickly dried after being self-cleaned, thereby preventing bacteria from breeding.

Further, the self-cleaning method further comprises the following steps:

s602, at the same time or after the drying device 330 is started, the cleaning roller 224 is controlled to rotate. The cleaning roller 224 is rotated, so that uniform drying is facilitated, and the drying effect is better. As for the rotational speed of the cleaning roller 224, any speed may be employed.

Further, the self-cleaning method further comprises the following steps:

s604, controlling the recycling device 240 to work at the same time of starting the drying device 330 or after the drying device is started. Recovery unit 240 operates to facilitate the flow of drying air, to carry more moisture away per unit time, and to facilitate drying of the interior of recovery channel 246 and recovery tank 244, to avoid bacteria growth on the walls.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A self-cleaning method for automatically cleaning a scrub roller of a cleaning apparatus on a base, the base having a cleaning bath in which at least a portion of the scrub roller is received, the cleaning apparatus including a liquid supply device, the self-cleaning method comprising:

2. The self-cleaning method of claim 1, further comprising:

3. The self-cleaning method of claim 1, wherein the cleaning apparatus further comprises a recovery device, the self-cleaning method further comprising:

4. The self-cleaning method of claim 3, further comprising:

5. The self-cleaning method of claim 3, further comprising:

6. The self-cleaning method of claim 5, wherein the base comprises a housing and a drying device, the cleaning tank is disposed on the housing, an air outlet capable of being opened or closed is formed on a side wall of the cleaning tank, and the drying device is disposed in the housing and is configured to output a drying air flow to the air outlet;

the self-cleaning method further comprises:

7. The self-cleaning method of claim 6, further comprising:

8. The self-cleaning method of claim 7, further comprising:

and controlling the recovery device to work at the same time of starting the drying device or after starting the drying device.

9. Self-cleaning method according to any of claims 1 to 8, wherein said first speed is between 800 and 1000 revolutions per minute and said first period of time is between 15 and 30 seconds.

10. Self-cleaning method according to any of claims 1 to 8, wherein said second speed is between 100 and 300 revolutions per minute, said second time period is between 10 and 15 seconds and said third time period is between 10 and 15 seconds.

11. Self-cleaning method according to any of claims 1 to 8, wherein the preset level is a level at which at least one third of the cleaning roller is submerged.