CN113243859B

CN113243859B - Surface cleaning apparatus and base station fluid interaction method and surface cleaning system

Info

Publication number: CN113243859B
Application number: CN202110456125.5A
Authority: CN
Inventors: 曹传源; 徐晓龙; 唐成; 段飞; 钟亮
Original assignee: Beijing Shunzao Technology Co Ltd
Current assignee: Beijing Shunzao Technology Co Ltd
Priority date: 2021-04-26
Filing date: 2021-04-26
Publication date: 2022-12-13
Anticipated expiration: 2041-04-26
Also published as: CN113243859A

Abstract

The present disclosure provides a method of fluid interaction of a surface cleaning apparatus and a base station, comprising: obtaining a current state of the surface cleaning apparatus when the surface cleaning apparatus is docked at the base station; when the current state of the surface cleaning equipment is a starting state, acquiring the liquid level state of the surface cleaning equipment; and when the liquid level of the surface cleaning apparatus is below a first preset value, controlling the base station to provide cleaning liquid to the surface cleaning apparatus and to cause the liquid level of the surface cleaning apparatus to be above a second preset value; when the liquid level of the surface cleaning device is greater than or equal to a first preset value and less than or equal to a second preset value, prompting a user whether cleaning liquid needs to be added into the surface cleaning device; when the liquid level of the surface cleaning equipment is greater than a second preset value, prompting a user that the liquid level is full; the second preset value is greater than the first preset value. The disclosure also provides a readable storage medium and a surface cleaning system.

Description

Surface cleaning apparatus and base station fluid interaction method and surface cleaning system

Technical Field

The present disclosure relates to a surface cleaning apparatus and a fluid interaction method of a base station, a readable storage medium, and a surface cleaning system.

Background

Surface cleaning devices of the prior art are typically used for wet scrubbing cleaning of hard floors or short hair carpets. Such cleaning devices usually have one or more rolling brushes or cleaning discs made of a woollen material. Stubborn soils on the floor can be scrubbed by the addition of water or a water/cleaner mixture.

When the cleaning apparatus moves over the dirt, the dirt which has been wiped off by the roll brush and dissolved by the water or the water/detergent mixture is sucked up by the cleaning head arranged in the moving direction of the roll brush, and in the technique of providing the cleaning disk, the cleaning head may not be provided and the dirt is directly adsorbed by the cleaning material on the cleaning disk.

However, tough soil is generally difficult to clean, and after the soil is scattered on the floor surface, water is evaporated to form hard-to-remove tough soil on the floor surface. Often, not all of this stubborn dirt is removed by the vacuuming operation during scrubbing, leaving some dirt on the floor, reducing the quality of the cleaning.

The cleaning effect of hot water is remarkably effective on hard floors. The reasonable and effective scheme is that the surface cleaning device is cleaned by heating water, the energy loss of the surface cleaning device is reduced by considering the problems of cruising and water continuation of the cleaning device, and the energy loss is transferred to a water storage base station (supply device). Therefore, a water replenishing base station is arranged, a water storage tank is arranged on the base station, water in the water storage tank is heated, and the water is heated to a temperature suitable for cleaning stubborn stains and is kept. The surface cleaning device returns to the base station, is in butt joint with a base station water tank through the water adding joint, achieves automatic water supplementing, and then continues to be cleaned through hot water. Or the cleaning action is finished, the surface cleaning device returns to the base station, and if the clean water tank has residual clean water, the residual clean water can be led back to the water storage tank of the base station.

Therefore, there is a need to devise an intelligent method of providing fluid communication between a surface cleaning apparatus and a base station for user convenience.

Disclosure of Invention

To solve one of the above technical problems, the present disclosure provides a fluid interaction method of a surface cleaning apparatus and a base station, a readable storage medium, and a surface cleaning system.

According to one aspect of the present disclosure, there is provided a method of fluid interaction of a surface cleaning apparatus and a base station, comprising:

determining whether the surface cleaning apparatus is docked at the base station;

obtaining a current state of the surface cleaning apparatus when the surface cleaning apparatus is docked at the base station; when the current state of the surface cleaning equipment is a starting state, acquiring the liquid level state of the surface cleaning equipment; and

controlling the fluid interaction between the surface cleaning apparatus and the base station based on the fluid level status of the surface cleaning apparatus;

wherein when the liquid level of the surface cleaning apparatus is below a first preset value, the base station is controlled to provide cleaning liquid to the surface cleaning apparatus and to cause the liquid level of the surface cleaning apparatus to be above a second preset value; when the liquid level of the surface cleaning device is greater than or equal to a first preset value and less than or equal to a second preset value, prompting a user whether cleaning liquid needs to be added into the surface cleaning device; when the liquid level of the surface cleaning equipment is greater than a second preset value, prompting a user that the liquid level is full; the second preset value is greater than the first preset value.

According to at least one embodiment of the present disclosure, the method for fluid interaction between a surface cleaning apparatus and a base station, the prompting a user whether to add a cleaning liquid to the surface cleaning apparatus comprises:

prompting a user through a voice broadcast or a display screen of the base station whether cleaning liquid needs to be added to the surface cleaning device,

and/or prompting a user whether cleaning liquid needs to be added to the surface cleaning device through voice broadcast or a display screen of the surface cleaning device.

According to the fluid interaction method of the surface cleaning device and the base station of at least one embodiment of the disclosure, when the liquid level of the surface cleaning device is greater than or equal to a first preset value and less than or equal to a second preset value, a control instruction of a user is received;

when the control instruction is to add cleaning liquid to the surface cleaning apparatus, the base station is controlled to provide cleaning liquid to the surface cleaning apparatus and to cause the liquid level of the surface cleaning apparatus to be above a second preset value.

A method of fluid interaction of a surface cleaning apparatus and a base station according to at least one embodiment of the present disclosure, the prompting a user that a fluid level is full comprising:

prompting a user that the liquid level is full through voice broadcast or a display screen of the base station;

and/or prompting a user that the liquid level is full through a voice broadcast or a display screen of the surface cleaning device.

A method of fluid interaction of a surface cleaning apparatus and a base station according to at least one embodiment of the present disclosure, further comprising:

when the surface cleaning equipment stops at the base station and the current state of the surface cleaning equipment is the starting state, the working mode of the surface cleaning equipment is obtained, and when the working mode of the surface cleaning equipment is the automatic liquid adding mode, fluid interaction between the surface cleaning equipment and the base station is controlled according to the liquid level state of the surface cleaning equipment.

According to the fluid interaction method of the surface cleaning device and the base station of at least one embodiment of the disclosure, when the working mode of the surface cleaning device is a self-cleaning mode, the surface cleaning device is controlled to carry out self-cleaning; and in the self-cleaning process of the surface cleaning equipment, acquiring the liquid level state of the surface cleaning equipment, and controlling the fluid interaction between the surface cleaning equipment and the base station according to the liquid level state of the surface cleaning equipment.

According to a fluid interaction method of a surface cleaning apparatus and a base station of at least one embodiment of the present disclosure, an operation mode of the surface cleaning apparatus is made a self-cleaning mode by a user inputting a control command.

According to the fluid interaction method of the surface cleaning device and the base station, in the self-cleaning process of the surface cleaning device, when the liquid level of the surface cleaning device is lower than a first preset value, the base station is controlled to provide cleaning liquid to the surface cleaning device, and the liquid level of the surface cleaning device is higher than the first preset value or higher than a second preset value.

According to the fluid interaction method of the surface cleaning device and the base station, after the self-cleaning process of the surface cleaning device is finished, the liquid level state of the surface cleaning device is obtained, and the fluid interaction between the surface cleaning device and the base station is controlled according to the liquid level state of the surface cleaning device.

According to the fluid interaction method of the surface cleaning device and the base station in at least one embodiment of the disclosure, after the self-cleaning process of the surface cleaning device is finished, when the liquid level of the surface cleaning device is higher than the first preset value, the base station is controlled to draw back the cleaning liquid in the surface cleaning device, and the liquid level of the surface cleaning device is lower than the first preset value.

According to the fluid interaction method of the surface cleaning device and the base station of at least one embodiment of the disclosure, when the self-cleaning process of the surface cleaning device is finished and the liquid level of the surface cleaning device is lower than the first preset value, the user is prompted to finish the self-cleaning of the surface cleaning device.

According to the fluid interaction method of the surface cleaning device and the base station of at least one embodiment of the present disclosure, after the surface cleaning device self-cleaning process is finished, the surface cleaning device is dried and/or disinfected.

According to at least one embodiment of the present disclosure, the fluid interaction method of a surface cleaning apparatus and a base station, the drying and/or disinfecting the surface cleaning apparatus comprises:

the base station is controlled to provide hot air to the roller brush of the surface cleaning device to dry the roller brush of the surface cleaning device and/or the base station is controlled to provide air containing ozone to the roller brush of the surface cleaning device to disinfect the roller brush of the surface cleaning device.

According to the fluid interaction method of the surface cleaning device and the base station of at least one embodiment of the disclosure, after drying and/or disinfection of the surface cleaning device is finished, whether the surface cleaning device leaves the base station is judged; and receiving a control command input by a user; controlling the surface cleaning apparatus to enter a sleep state when the surface cleaning apparatus has not left the base station after a preset time and the user has not entered a control command.

According to the fluid interaction method of the surface cleaning device and the base station, when the surface cleaning device is parked at the base station and the current state of the surface cleaning device is the power-on state, a control command input by a user is received, and the working mode of the surface cleaning device is the automatic liquid adding mode or the self-cleaning mode according to the control command.

According to the fluid interaction method of the surface cleaning device and the base station, the surface cleaning device is controlled to be in the self-cleaning mode when no control command is input by a user within a preset time so that the working mode of the surface cleaning device is the automatic liquid adding mode or the self-cleaning mode.

According to the surface cleaning device and the fluid interaction method of the base station of at least one embodiment of the disclosure, when the surface cleaning device leaves the base station, the time of the surface cleaning state is longer than the preset value, and the surface cleaning device is parked at the base station again, a control command input by a user is received, and the working mode of the surface cleaning device is an automatic liquid adding mode or a self-cleaning mode according to the control command.

According to another aspect of the present disclosure, there is provided a readable storage medium having stored therein execution instructions, which when executed by a processor, are used to implement the above-mentioned method.

According to another aspect of the present disclosure, there is provided a surface cleaning system comprising a base station and a surface cleaning apparatus that are in fluid communication according to the fluid communication method of the surface cleaning apparatus and the base station described above.

According to at least one embodiment of the present disclosure, a surface cleaning apparatus includes:

a liquid storage tank for storing a cleaning liquid; and

and the liquid level detection device is used for detecting the liquid level in the liquid storage tank.

According to at least one embodiment of this disclosure, the surface cleaning system, the liquid level detection device comprises:

a float including a float body and a magnetic portion;

a float guide along which the float is movable in a vertical direction based on a change in a liquid level by buoyancy of the liquid; and

and the plurality of magnetic signal sensors are arranged along the vertical direction, and when the floater triggers one of the plurality of magnetic signal sensors, the triggered magnetic signal sensor generates a triggering signal.

According to the surface cleaning system of at least one embodiment of the present disclosure, the number of the floats is two or more, the number of the magnetic signal sensors is one more than the number of the floats, the float guide portion is provided with the same number of guide grooves as the number of the floats, the respective floats move along the respective guide grooves based on a change in liquid level under the buoyancy of the liquid, and each magnetic signal sensor can be triggered by only one float.

According to the surface cleaning system of at least one embodiment of the present disclosure, the number of the floats is two or more, the number of the magnetic signal sensors is one more than that of the floats, the float guide portion is provided with the one less limit portion than that of the floats, each float moves along the float guide portion based on the change of the liquid level under the buoyancy of the liquid, two adjacent floats are spaced by one limit portion, and each magnetic signal sensor can be triggered by only one float.

According to the surface cleaning system of at least one embodiment of the present disclosure, the number of the floats is two, that is, an upper float and a lower float, and the number of the magnetic signal sensors is three, that is, an upper sensor, a middle sensor, and a lower sensor, the upper sensor and the middle sensor being capable of being triggered by the upper float, and the lower sensor being capable of being triggered by the lower float.

According to the surface cleaning system of at least one embodiment of the present disclosure, the number of the floats is two, that is, an upper float and a lower float, and the number of the magnetic signal sensors is three, that is, an upper sensor, a middle sensor, and a lower sensor, the upper sensor being capable of being triggered only by the upper float, and the middle sensor and the lower sensor being capable of being triggered by the lower float.

the liquid level meter comprises a capacitance liquid level meter and/or a photoelectric liquid level meter, wherein the capacitance liquid level meter and/or the photoelectric liquid level meter are used for detecting the liquid level in the liquid storage tank.

Drawings

The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the disclosure and together with the description serve to explain the principles of the disclosure.

FIG. 1 is a flow chart of a method of fluid interaction of a surface cleaning apparatus and a base station according to one embodiment of the present disclosure.

Fig. 2 is a flow chart of adding liquid to a surface cleaning apparatus according to one embodiment of the present disclosure.

FIG. 3 is a flow chart of a method of fluid interaction of a surface cleaning apparatus and a base station according to another embodiment of the present disclosure.

Fig. 4 is a flow chart of a method of fluid interaction of a surface cleaning apparatus and a base station according to another embodiment of the present disclosure.

FIG. 5 is a schematic structural view of a surface cleaning system according to one embodiment of the present disclosure;

fig. 6 and 7 are schematic structural views of a tank having a liquid level detection apparatus according to an embodiment of the present disclosure.

Fig. 8 is a schematic structural view of a base according to an embodiment of the present disclosure.

FIG. 9 is a bottom view of a tank with a liquid level detection device according to one embodiment of the present disclosure (with the base removed).

FIG. 10 is a schematic view of a float and filter holder and base mounting arrangement according to one embodiment of the present disclosure.

FIG. 11 is a schematic structural view of a filter holder according to one embodiment of the present disclosure.

FIG. 12 is a schematic view of another angle configuration of a tank having a liquid level detection device according to one embodiment of the present disclosure.

Fig. 13 is a schematic structural view of a bidirectional one-way valve according to an embodiment of the present disclosure.

FIG. 14 is a schematic view of another angle configuration of a two-way, one-way valve according to one embodiment of the present disclosure.

Fig. 15 to 17 are schematic cross-sectional structural views of a liquid storage tank having a liquid level detection apparatus according to an embodiment of the present disclosure.

Fig. 18 to 21 are schematic views of a liquid level detection device according to an embodiment of the present disclosure when detecting liquid levels of tanks having different liquid levels.

FIG. 22 is an exploded schematic view of a fluid level detection apparatus according to one embodiment of the present disclosure.

FIG. 23 is a schematic structural view of a liquid level detection apparatus according to another embodiment of the present disclosure.

Detailed Description

The present disclosure will be described in further detail with reference to the drawings and embodiments. It is to be understood that the specific embodiments described herein are for purposes of illustration only and are not to be construed as limitations of the present disclosure. It should be further noted that, for the convenience of description, only the portions relevant to the present disclosure are shown in the drawings.

FIG. 1 is a flow chart of a method of fluid interaction of a surface cleaning apparatus and a base station according to one embodiment of the present disclosure. Fig. 2 is a flow chart of adding liquid to a surface cleaning apparatus according to one embodiment of the present disclosure.

A method 400 of fluid interaction of a surface cleaning apparatus and a base station as described in figures 1 and 2, comprising:

402. determining whether the surface cleaning apparatus 100 is docked at the base station 200;

404. acquiring a current state of the surface cleaning apparatus 100 when the surface cleaning apparatus 100 is docked at the base station 200;

406. when the current state of the surface cleaning apparatus 100 is a powered on state, obtaining a liquid level state of the surface cleaning apparatus 100; and

408. controlling the interaction fluid between the surface cleaning apparatus 100 and the base station 200 based on the fluid level status of the surface cleaning apparatus 100;

wherein when the liquid level of the surface cleaning apparatus 100 is below a first preset value, the base station 200 is controlled to provide cleaning liquid to the surface cleaning apparatus 100 and to cause the liquid level of the surface cleaning apparatus 100 to be above a second preset value; when the liquid level of the surface cleaning apparatus 100 is greater than or equal to the first preset value and less than or equal to the second preset value, prompting a user whether to add cleaning liquid to the surface cleaning apparatus 100; when the liquid level of the surface cleaning apparatus 100 is greater than the second preset value, prompting the user that the liquid level is full; the second preset value is greater than the first preset value.

In the present disclosure, fluid interaction and drying and/or disinfection operations are not possible when the surface cleaning apparatus 100 is not docked at the base station 200.

When the current state of the surface cleaning apparatus 100 is the off state, no operation is performed on the surface cleaning apparatus 100, that is, no fluid interaction is performed between the surface cleaning apparatus 100 and the base station 200, and the base station 200 also does not dry and/or sterilize the surface cleaning apparatus 100.

The fluid interaction method of the surface cleaning apparatus and the base station of the present disclosure is performed based on the fluid level of the surface cleaning apparatus 100, thereby enabling fluid replenishment, self-cleaning, and fluid return operations of the surface cleaning apparatus 100 on the base station 200.

Preferably, the prompting of the user as to whether cleaning liquid needs to be added to the surface cleaning apparatus 100 comprises:

the user is prompted by a voice announcement or display screen of the base station 200 whether or not cleaning liquid needs to be added to the surface cleaning apparatus 100,

and/or, prompt the user via a voice broadcast or display of the surface cleaning apparatus 100 whether cleaning liquid needs to be added to the surface cleaning apparatus 100.

That is, the user may be prompted by the base station 200 when prompting the user whether the cleaning liquid needs to be added to the surface cleaning apparatus 100, or may be prompted by the surface cleaning apparatus 100, which is not limited by the present disclosure.

In an optional embodiment of the present disclosure, when the liquid level of the surface cleaning apparatus 100 is greater than or equal to a first preset value and less than or equal to a second preset value, a control instruction of a user is received;

when the control instruction is to add cleaning liquid to the surface cleaning apparatus 100, controlling the base station 200 to provide cleaning liquid to the surface cleaning apparatus 100 and to cause the liquid level of the surface cleaning apparatus 100 to be above a second preset value;

when the control instructions are such that no cleaning liquid needs to be added to the surface cleaning apparatus 100, no action is performed, i.e. no cleaning liquid is supplied to the surface cleaning apparatus 100.

According to at least one embodiment of the present disclosure, the prompting the user that the liquid level is full comprises:

prompting a user that the liquid level is full through voice broadcast or a display screen of the base station 200;

and/or, prompt the user that the fluid level is full via a voice broadcast or display screen of the surface cleaning apparatus 100.

That is, the user may be prompted by the base station 200 when the user is prompted that the fluid level is full, or may be prompted by the surface cleaning apparatus 100, as the present disclosure is not limited thereto.

In an alternative embodiment of the disclosure, as shown in fig. 3, the fluid interaction method of the surface cleaning apparatus and the base station further comprises:

when the surface cleaning apparatus 100 is docked at the base station 200 and the current state of the surface cleaning apparatus 100 is an on state, the operating mode of the surface cleaning apparatus 100 is obtained, and when the operating mode of the surface cleaning apparatus 100 is an automatic priming mode, the interactive fluid between the surface cleaning apparatus 100 and the base station 200 is controlled according to the fluid level state of the surface cleaning apparatus 100.

On the other hand, when the operation mode of the surface cleaning apparatus 100 is the self-cleaning mode, the surface cleaning apparatus 100 is controlled to perform self-cleaning; during self-cleaning of the surface cleaning apparatus 100, a fluid level status of the surface cleaning apparatus 100 is obtained, and fluid interaction between the surface cleaning apparatus 100 and the base station 200 is controlled based on the fluid level status of the surface cleaning apparatus 100.

In the present disclosure, the operation mode of surface cleaning apparatus 100 is made to be the self-cleaning mode by user input of a control command.

In the present disclosure, during self-cleaning of the surface cleaning apparatus 100, when the liquid level of the surface cleaning apparatus 100 is below a first preset value, the base station 200 is controlled to provide cleaning liquid to the surface cleaning apparatus 100 and to cause the liquid level of the surface cleaning apparatus 100 to be above the first preset value or above a second preset value.

In an alternative embodiment of the present disclosure, a fluid level status of surface cleaning apparatus 100 is obtained after a self-cleaning process of surface cleaning apparatus 100 is completed, and the interaction fluid between surface cleaning apparatus 100 and base station 200 is controlled based on the fluid level status of surface cleaning apparatus 100.

Preferably, when the liquid level of the surface cleaning apparatus 100 is above the first preset value after the surface cleaning apparatus 100 is finished self-cleaning, the control base station 200 withdraws the cleaning liquid in the surface cleaning apparatus 100 and makes the liquid level of the surface cleaning apparatus 100 below the first preset value.

In the present disclosure, when the self-cleaning process of the surface cleaning apparatus 100 is finished and the liquid level of the surface cleaning apparatus 100 is lower than the first preset value, the user is prompted to finish the self-cleaning of the surface cleaning apparatus 100.

Accordingly, the user may be prompted by the base station 200 when prompting the user to end the self-cleaning of the surface cleaning apparatus 100, or may be prompted by the surface cleaning apparatus 100, which is not limited by the present disclosure.

In this disclosure, the fluid interaction method of the surface cleaning apparatus and the base station further includes: after the surface cleaning apparatus 100 is finished with the self-cleaning process, the surface cleaning apparatus 100 is dried and/or sterilized.

As one implementation form, the drying and/or sterilizing the surface cleaning apparatus 100 includes:

the base station 200 is controlled to provide hot air to the rollers of the surface cleaning apparatus 100 to dry the rollers of the surface cleaning apparatus 100 and/or the base station 200 is controlled to provide ozone-containing air to the rollers of the surface cleaning apparatus 100 to disinfect the rollers of the surface cleaning apparatus 100.

In the present disclosure, after drying and/or disinfecting of the surface cleaning apparatus 100 is finished, it is determined whether the surface cleaning apparatus 100 leaves the base station 200; and receiving a control command input by a user; when the surface cleaning apparatus 100 has not left the base station 200 after a preset time and the user has not entered a control command, the surface cleaning apparatus 100 is controlled to enter a sleep state.

In the present disclosure, when the surface cleaning apparatus 100 is docked at the base station 200 and the current state of the surface cleaning apparatus 100 is the on state, a control command input by a user is received, and the operation mode of the surface cleaning apparatus 100 is the automatic liquid adding mode or the self-cleaning mode according to the control command.

More preferably, the user-entered control command may be via a user-activated key provided on the surface cleaning apparatus, or a key of a remote control of the surface cleaning apparatus, or the like.

The surface cleaning apparatus is controlled to be in the self-cleaning mode when no control command is entered by the user within a predetermined time, such as 5 minutes, such that the operating mode of the surface cleaning apparatus 100 is either the automatic filling mode or the self-cleaning mode.

On the other hand, when the surface cleaning apparatus 100 leaves the base station 200, is in a surface cleaning state for a time greater than a preset value, for example greater than 5 minutes, and the surface cleaning apparatus 100 is parked again at the base station 200, a control command input by the user is received and the operating mode of the surface cleaning apparatus 100 is either the automatic priming mode or the self-cleaning mode according to the control command.

Accordingly, the surface cleaning apparatus is controlled to be in the self-cleaning mode when the user does not enter a control command within a predetermined time period such that the operating mode of the surface cleaning apparatus 100 is either the automatic priming mode or the self-cleaning mode.

Furthermore, when the surface cleaning apparatus 100 leaves the base station 200 and is in the surface cleaning state for a time period less than or equal to a predetermined value, such as less than or equal to 5 minutes, the base station 200 provides power to the surface cleaning apparatus 100 when the surface cleaning apparatus is controlled to be in the charging state when no control command is input by the user within the predetermined time period such that the operating mode of the surface cleaning apparatus 100 is the automatic priming mode or the self-cleaning mode.

Fig. 5 is a schematic structural diagram of a surface cleaning system according to one embodiment of the present disclosure.

According to another aspect of the disclosure, as shown in fig. 5, a surface cleaning system is provided, the surface cleaning system comprising a base station 200 and a surface cleaning apparatus 100, the base station 200 and the surface cleaning apparatus 100 being in fluid communication according to the above-described fluid communication method of the surface cleaning apparatus and the base station.

In the present disclosure, the surface cleaning apparatus 100 includes:

a tank 110, the tank 110 storing a cleaning liquid; and

a liquid level detection device 120, the liquid level detection device 120 being configured to detect a liquid level in the liquid storage tank 110.

Fig. 6 and 7 are schematic structural views of a tank according to an embodiment of the present disclosure.

As shown in fig. 6 and 7, the present disclosure provides a tank 110, comprising:

a tank 130, the tank 130 storing a cleaning liquid; and

a fluid interface 140, wherein the fluid interface 140 is disposed on the tank 130 and is communicated with the tank 130 to add cleaning liquid into the tank 130 or to extract the cleaning liquid from the tank 130 through the fluid interface 140.

When the liquid storage tank 110 is used, the liquid level height in the tank body can be accurately obtained, and water supplementing/returning operation is accurately realized on the basis of the liquid level height obtained by the liquid level detection device.

Fig. 9 is a bottom view of a reservoir (with the base removed) according to one embodiment of the present disclosure. FIG. 10 is a schematic view of a float and filter holder and base mounting arrangement according to one embodiment of the present disclosure. FIG. 11 is a schematic structural view of a filter holder according to one embodiment of the present disclosure.

In the present disclosure, as shown in fig. 9 to 11, the case 130 includes:

the base plate (131) is provided with a plurality of fixing holes,

an inner housing 132, wherein the inner housing 132 is disposed on the base 131, and the inner housing 132 and the base 131 enclose a space for storing a cleaning liquid; and

an outer housing 133, the outer housing 133 disposed outside of the interior and at least partially encasing the inner housing 132.

More preferably, the base 131 is formed with a first groove 1311, and the lower end of the inner housing 132 is inserted into the first groove 1311 of the base 131; and preferably, a sealing structure is provided at the junction of the inner housing 132 and the base 131 to prevent the tank from leaking.

Similarly, the base 131 is formed with a second groove 1312, the second groove 1312 being located outside the first groove 1311, and the lower end of the outer case 133 being inserted into the second groove 1312.

Furthermore, a sealing joint is optionally provided at the connection between the outer housing 133 and the base to prevent the cleaning liquid in the tank from leaking out when the liquid leaks between the inner housing 132 and the base 131.

That is, a sealing structure may be provided at the connection of the outer case 133 and the base; however, when the sealing structure formed by the inner housing 132 and the base 131 is relatively reliable, the sealing structure may not be formed at the joint of the outer housing 133 and the base 131.

In the present disclosure, at least a portion of the outer housing 133 and the inner housing 132 are disposed with a predetermined distance therebetween.

In the present disclosure, the at least partially wrapping of the inner housing 132 by the outer housing 133 includes: the outer housing 133 entirely encloses the inner housing 132.

Considering that the cleaning liquid in the tank 130 is mainly stored in the lower half of the tank 130 or in the middle-lower portion of the tank 130, based on this, the outer casing 133 wraps the lower half of the inner casing 132 or includes the middle and lower halves of the inner casing 132, and thus the tank 130 is formed in a double structure to effectively prevent the temperature of the cleaning liquid in the tank 130 from dropping.

The tank 110 further comprises:

a filter 150, the filter 150 being in communication with the fluid interaction interface 140 to filter cleaning liquid added through the fluid interaction interface 140.

Preferably, the filter 150 is connected to the fluid interaction interface 140 via a refill water return 151 such that both the added cleaning liquid and the reclaimed cleaning liquid pass through the filter 150.

In the present disclosure, the filter 150 is fixed to the base 131 by the filter holder 152.

Preferably, the base 131 is formed with a first seating groove 1313, and the lower end of the filter holder 152 is seated in the first seating groove 1313.

In the present disclosure, a stopper 1314 is formed on a side wall of the first positioning groove 1313, an outer flange 1521 is formed on a side wall of the filter holder 152, and a notch is formed in the outer flange 1521, so that when the filter holder 152 is disposed in the first positioning groove 1313, the notch of the outer flange 1521 is engaged with the stopper 1314 to limit rotation of the filter holder 152.

When the filter holder 152 is disposed in the first positioning groove 1313, the outer flange 1521 is located in the first positioning groove 1313.

In this disclosure, the outer wall surface of the filter support 152 is formed with at least two fixing portions 1522, the base 131 is provided with at least two locking portions 1315, so that the locking of the filter support 152 is realized through the cooperation of the fixing portions 1522 and the locking portions 1315.

Preferably, the locking part 1315 performs locking of the filter holder 152 by restricting up and down movement of the filter holder 152.

The locking part 1315 is formed with a stopper 13151, and a stopper 1523 is formed on an outer circumferential surface of the filter holder 152 to limit rotation of the filter holder 152 by cooperation of the stopper 13151 and the stopper 1523.

In the present disclosure, it is preferable that the external case 133 is provided with an operation part 1331 so that the tank 110 is mounted to or removed from the surface cleaning apparatus by operating the operation part 1331.

Wherein the operation portion 1331 is formed in a shape protruding outward from the outer case 133, i.e., in a shape of a handle, and may be integrally formed with the operation portion 1331.

FIG. 12 is a schematic view of another angled configuration of a tank according to one embodiment of the present disclosure.

In the present disclosure, as shown in fig. 6 and 12, the liquid storage tank 110 further includes:

and a mounting seat 160, wherein the mounting seat 160 is disposed on the outer housing 133 and above the operating part 1331.

The liquid storage tank 110 further comprises:

a bayonet joint actuator 170, the bayonet joint actuator 170 being movable between a first position and a second position; a through hole is formed in the mounting seat 160, and when the bayonet joint actuating part 170 is in the first position, a part of the bayonet joint actuating part 170 penetrates out of the through hole and is positioned outside the mounting seat 160; when the bayonet head actuator 170 is in the second position, portions of the bayonet head actuator 170 are retracted into the interior of the mounting block 160.

As an implementation form, the card head actuating portion 170 can move in a vertical direction, so that the first position of the card head actuating portion 170 is the uppermost position of the card head actuating portion 170; the second position of the bayonet joint actuator 170 is the lowermost position of the bayonet joint actuator 170.

In the present disclosure, the outer case 133 is formed with a step, the lower end of the mount 160 is disposed on the step of the outer case 133, and the mount 160 is located outside the outer case 133.

At this time, the inner case 133 may also be stepped such that the cross-sectional area of the upper end of the inner case 133 is smaller than the cross-sectional area of the lower end of the inner case 133.

Preferably, the snap head actuating portion 170 is disposed between the mounting seats 160 of the outer housing 133 and slides along an outer wall surface of the outer housing 133 and/or an inner wall surface of the mounting seats 160.

A spring is arranged between the bayonet joint actuating part 170 and the outer shell 133, the spring is in a pre-compressed state, and when a downward external force is applied to the bayonet joint actuating part 170, the bayonet joint actuating part 170 is moved downwards, so that the bayonet joint actuating part 170 moves from a first position to a second position; when the external force disappears, the bayonet joint actuator 170 moves from the second position to the first position by the restoring force of the spring.

In the present disclosure, the portion of the latch actuating portion 170 extending out of the mounting base 160 is formed as a latch 171, and the reservoir 110 is fixed to the surface cleaning apparatus by latching the latch 171 to the housing of the surface cleaning apparatus.

An upper surface of the catch 171 is formed to be inclined, and the upper surface of the catch 171 is inclined downward in a direction of mounting the tank 110 to the surface cleaning apparatus, so that a user can conveniently mount the tank 110 to the surface cleaning apparatus.

In the present disclosure, it is preferable that the upper wall of the tank 130 is formed with a water inlet and outlet 134 so that the washing liquid is introduced into the inside of the tank 130 through the water inlet and outlet 134. When the user takes out the reservoir 110, the cleaning liquid may be manually introduced into the interior of the housing 130 through the inlet/outlet port 134, and when the reservoir 110 is inverted, the cleaning liquid remaining in the interior of the housing may be discharged.

In this disclosure, the liquid storage tank 110 further includes:

a pivoting cover 180, the pivoting cover 180 being rotatably provided to the mounting seat 160 such that the pivoting cover 180 can open and close the water inlet and outlet 134.

Preferably, the pivoting cover 180 is provided with a hole to allow air to be introduced into or exhausted from the inside of the case 130 through the hole of the pivoting cover.

Fig. 13 is a schematic structural view of a two-way, one-way valve according to one embodiment of the present disclosure. Fig. 14 is a schematic view of another angle configuration of a two-way, one-way valve according to one embodiment of the present disclosure.

For example, as shown in fig. 13 and 14, the pivoting cover 180 is provided with a two-way one-way valve 190, and the two-way one-way valve 190 is communicated with a hole of the pivoting cover 180 for supplying or exhausting gas into or from the cabinet.

As one implementation form, the bidirectional one-way valve 190 includes:

a seat body 191, which may be disposed on the pivoting cover 180, and the seat body 191 may be cylindrical and communicate with the hole of the pivoting cover 180; of course, the seat body 191 may have other shapes, and the shape is not limited in the disclosure;

an air inlet 192, the air inlet 192 being disposed on the seat body 191 such that air enters the case 130 through the seat body 191 and the air inlet 192; and

and an exhaust part 193, wherein the exhaust part 193 is disposed on the holder body 191 such that gas is exhausted to the outside of the case 130 through the holder body 191 and the exhaust part 193.

As one implementation form, the air intake portion 192 includes:

a first connection portion 1921, a portion of the first connection portion 1921 being connected to the base 191; and

second connector 1922, a portion of second connector 1922 is connected to holder 191, and first connector 1921 is connected to second connector 1922, where the connection between first connector 1921 and second connector 1922 is located at a position where first connector 1921 and second connector 1922 are far away from holder 191;

a plurality of air inlet holes 1923 are opened at a connection portion of the first connection portion 1921 and the second connection portion 1922, so that when the air pressure inside the two-way one-way valve 190 is higher than the air pressure outside the two-way one-way valve 190, the air inside the two-way one-way valve 190 flows to the outside of the two-way one-way valve 190 through the air inlet holes 1923.

In the present disclosure, a first opening is formed between the first connecting portion 1921 and the second connecting portion 1922, and the first opening is disposed toward the base 191.

That is, the first and second connecting

portions

1921 and 1922 are formed in a V-shape, and the intake holes are located at the top end of the V-shape.

Preferably, a first included angle is formed between the first connecting portion 1921 and the second connecting portion 1922, and preferably, the first included angle is about 90 °, for example, 60 ° to 120 °.

Preferably, the exhaust part 193 includes:

a third link 1931, a portion of the third link 1931 being connected to the seat 191; and

a fourth link 1932, a portion of the fourth link 1932 being connected to the holder body 191, and the third link 1931 being connected to the fourth link 1932,

the connection position of the third connecting portion 1931 and the fourth connecting portion 1932 is located at a position where the third connecting portion 1931 and the fourth connecting portion 1932 are close to the seat body 191.

A plurality of exhaust holes 1933 are opened at a connection position of the third connection portion 1931 and the fourth connection portion 1932, so that when the air pressure outside the two-way one-way valve 190 is higher than the air pressure inside the two-way one-way valve 190, the air outside the two-way one-way valve 190 flows to the inside of the two-way one-way valve 190 through the exhaust holes 1933.

In this disclosure, a second opening is formed between the third connecting portion 1931 and the fourth connecting portion 1932, and the second opening is disposed toward a direction away from the seat body 191.

That is, the third and fourth connecting

portions

1931 and 1932 are formed in a V shape, and the exhaust hole 1933 is located at the tip of the V shape.

Preferably, the third connecting portion 1931 and the fourth connecting portion 1932 form a second included angle therebetween, and preferably, the second included angle is about 90 °, for example, 60 ° to 120 °.

In this disclosure, the two-way one-way valve 190 further includes an intermediate connection portion, the intermediate connection portion is connected to the first connection portion 1921, the second connection portion 1922, the third connection portion 1931 and the fourth connection portion 1932, so that gas can only pass through the inlet hole flows to from the inside of the two-way one-way valve 190 outside the two-way one-way valve 190, and so that gas can only pass through the exhaust hole flows to from the outside of the two-way one-way valve 190 inside the two-way one-way valve 190.

The two-way one-way valve of the present disclosure is made of an elastic material, for example, the air inlet portion and the air outlet portion are made of an elastic material, and preferably, the elastic material is silica gel.

Therefore, when the bidirectional one-way valve is used, due to the special structural design of the air inlet part and the air outlet part, the effect that force is applied to the inner corner of the V shape is inconsistent with the effect that force is applied to the outer corner of the V shape, and the inner corner is applied to form an air pressure cavity more easily, so that the air inlet hole or the air outlet hole is opened; and the air can not form an air pressure cavity at the outer corner, so that the air inlet hole or the air exhaust hole can not be opened, and therefore, when the air pressures at the two sides of the V shape are inconsistent, the air flow at the high air pressure side is exhausted to the low air pressure side through the air inlet hole or the air exhaust hole at the inner corner of the V shape.

In the present disclosure, preferably, the liquid level detection apparatus 120 includes a capacitance liquid level meter and/or an electro-optical liquid level meter, and the capacitance liquid level meter and/or the electro-optical liquid level meter are disposed inside and/or outside the tank body 130, so as to detect the liquid level in the tank body 130 through the capacitance liquid level meter and/or the electro-optical liquid level meter.

Fig. 15 to 17 are schematic sectional structural views of a tank according to an embodiment of the present disclosure.

According to an embodiment of the present disclosure, as shown in fig. 15 to 17, the liquid level detection apparatus 120 includes:

a float 121, the float 121 including a float body 1211 and a magnetic portion 1212;

a float guide 122 along which the float 121 is movable in a vertical direction based on a change in liquid level by buoyancy of the liquid; and (c) a second step of,

a plurality of magnetic signal sensors 123, the plurality of magnetic signal sensors 123 being disposed in a vertical direction, when the float 121 triggers one of the plurality of magnetic signal sensors 123, the triggered magnetic signal sensor 123 generates a trigger signal.

In the present disclosure, the sectional type liquid level detection of the tank 130 can be realized by providing the plurality of magnetic signal sensors 123. That is, on the inner wall or the outer wall of the box 130, a plurality of magnetic signal sensors are arranged from the bottom to the top, and the liquid level is judged to be at a low liquid level, a medium liquid level or a high liquid level according to three trigger points of high, medium and low.

On the other hand, the liquid level detection device includes the level gauge to data acquisition box that detect according to this level gauge in the liquid level, can judge that the liquid level is located low liquid level, well liquid level or high liquid level according to this continuous liquid level signal from this.

In the present disclosure, the float 121 is disposed inside the tank 130, the plurality of magnetic signal sensors 123 are disposed outside the tank 130 along a vertical direction, the plurality of magnetic signal sensors 123 are disposed at a plurality of different liquid levels, when a certain magnetic signal sensor 123 is triggered (facing or entering a predetermined distance), the magnetic signal sensor 123 generates a trigger signal, the trigger signal is generally an electrical signal, the trigger signal can indicate a current liquid level, for accuracy of liquid level measurement, more than three magnetic signal sensors 123 may be disposed, and the float 121 may be only one.

The float guide portion 122 may be a guide frame structure, and a guide groove 124 (or a guide rail) is formed on the float guide portion 122.

Wherein the magnetic portion 1212 may be a permanent magnet or a magnet, and the float body 1211 may be made of a low-density material, for example, the float body 1211 may be prepared by foamed plastic, wherein the float may be replaced periodically.

In the present disclosure, the number of the magnetic portion 1212 in the float body 1211 may be one, and in this case, the size of the float body 1211, the mass of the magnetic portion, and the installation position of the magnetic portion may be adjusted so that the upper surface of the float is flush with the liquid surface, or so that the magnetic portion is located at the liquid surface when the float floats on the liquid surface.

Of course, the magnetic portion 1212 in the float body 1211 may be provided in plurality, in which case the at least two magnetic portions 1212 are provided at different heights of the float body 1211 in the vertical direction; at this time, the size of the float body 1211, the mass of the magnetic portion 1212, and the installation position of the magnetic portion 1212 may be adjusted so that the upper surface of the float is flush with the liquid surface, or so that the magnetic portion 1212 positioned uppermost is positioned just at the liquid surface when the float floats on the liquid surface.

Thus, by providing the plurality of magnetic portions 1212, it is possible to more stably ensure that the magnetic signal sensor 123 is triggered by the magnetic portions, and to reduce the probability of the float triggering the magnetic signal sensor 123 failing.

According to a preferred embodiment of the present disclosure, the number of the floats 121 of the liquid level detecting device 120 is two or more, the number of the magnetic signal sensors 123 is one more than the number of the floats 121, the float guide 122 is provided with the same number of guide grooves 124 as the number of the floats 121, the respective floats 121 move along the respective guide grooves 124 based on a change in the liquid level by buoyancy of the liquid, and each magnetic signal sensor 123 can be triggered by only one float.

In this embodiment, each magnetic signal sensor 123 can be preferably directly opposite to one float 121, i.e. can be triggered by only one float 121, more preferably, the upper float can trigger the upper sensor and the middle sensor based on the change of the liquid level, and the lower float can trigger the lower sensor only.

Alternatively, it may be provided that the upper float is able to trigger the upper sensor based on a change in the liquid level and the lower float is able to trigger the middle sensor and the lower sensor.

In the present embodiment, the moving range of each float 121 may be defined by the respective guide grooves 124.

According to still another preferred embodiment of the present disclosure, the number of the floats 121 of the liquid level detecting device 120 is two or more, the number of the magnetic signal sensors 123 is one more than the number of the floats 121, the float guide 122 is provided with one less stopper portion 126 than the number of the floats 121, each float 121 moves along the float guide 122 based on a change in the liquid level by buoyancy of the liquid, adjacent two floats 121 are spaced by one stopper portion 126, and each magnetic signal sensor 123 can be triggered by only one float 121.

In this embodiment, the float guide portion 122 has a cavity, each float 121 is disposed in the cavity of the float guide portion 122, and two adjacent floats 121 are separated by a limiting portion 126.

With the liquid level detection device 120 of each of the above embodiments, it is preferable that the number of the floats 121 is two, that is, the upper float and the lower float, and the number of the magnetic signal sensors 123 is three, that is, the upper sensor, the middle sensor, and the lower sensor, the upper sensor and the middle sensor being capable of being triggered by the upper float, and the lower sensor being capable of being triggered by the lower float.

Preferably, the upper float moves between the upper sensor and the middle sensor, the upper float can trigger the upper sensor or the middle sensor based on the change of the liquid level, when the upper float is positioned between the upper sensor and the middle sensor, the upper sensor is not triggered, the middle sensor is not triggered, and the lower float can only trigger the lower sensor based on the change of the liquid level.

According to an alternative preferred embodiment of the present disclosure, the number of the floats 121 of the liquid level detecting device 120 is two, i.e., an upper float and a lower float, and the number of the magnetic signal sensors 123 is three, i.e., an upper sensor, a middle sensor, and a lower sensor, the upper sensor being capable of being triggered only by the upper float, and the middle sensor and the lower sensor being capable of being triggered by the lower float.

In this embodiment, the upper float moves between the upper sensor and the middle sensor, the upper float can only trigger the upper sensor based on the change in the liquid level, and when the upper float is positioned between the upper sensor and the middle sensor, the upper sensor is not triggered, the middle sensor is not triggered, and the lower float can trigger the middle sensor or the lower sensor based on the change in the liquid level.

With the liquid level detection device 120 of each of the above embodiments, it is preferable that the magnetic portion 1212 is embedded within the float body 1211.

For the liquid level detection device 120 of each of the above embodiments, the magnetic signal sensor 123 may be a hall sensor or a reed pipe device.

With the liquid level detection device 120 of each of the above embodiments, the float guide 122 is provided inside the tank 130, and the magnetic signal sensor 123 is provided outside the tank 130.

In which the float guide 122 may be fixed on an inner wall of the case 130, and the magnetic signal sensor 123 may be fixed on an outer wall of the case 130 or on a support portion adjacent to the case 130.

With the liquid level detection device 120 of each of the above embodiments, it is preferable that when the upper float is located at the highest position of the upper float, the upper float triggers the upper sensor, the upper sensor generates the first trigger signal, and the middle sensor and the lower sensor do not generate the trigger signals.

At this time, the lower float is located at the highest position of the lower float, and the lower float does not trigger the middle sensor and the lower sensor.

With the liquid level detection device 120 of each of the above embodiments, it is preferable that when the upper float is located between the upper sensor and the middle sensor, the upper float does not trigger the upper sensor, and the upper sensor, the middle sensor, and the lower sensor do not generate a trigger signal.

In the liquid level detection device 120 according to each of the above embodiments, it is preferable that the upper float triggers the middle sensor, the middle sensor generates the second trigger signal, and the upper sensor and the lower sensor do not generate the trigger signals when the upper float is located at the lowest position of the upper float and the lower float is higher than the lowest position of the lower float.

With the liquid level detection device 120 of each of the above embodiments, it is preferable that when the upper float is located at the lowest position of the upper float and the lower float is located at the lowest position of the lower float, the upper float triggers the middle sensor, the middle sensor generates the second trigger signal, the lower float triggers the lower sensor, and the lower sensor generates the third trigger signal.

The first, second, and third trigger signals described above are merely to distinguish between trigger signals generated by three different sensors.

For the liquid level detection device 120 of each of the above embodiments, it is preferable that the liquid level detection device further includes a processing device, the processing device is connected in communication with the magnetic signal sensor 123, and the processing device generates a corresponding liquid level indication signal based on the trigger state of each magnetic signal sensor 123.

For example, when the upper sensor generates a first trigger signal and the middle and lower sensors do not generate trigger signals, the processing device generates a first level indicator signal, which may indicate that the tank 130 is at a full level, as shown in fig. 18.

When the upper sensor, the middle sensor and the lower sensor do not generate the trigger signal, the processing device generates a second liquid level indicating signal, and the second liquid level indicating signal may indicate that the liquid level of the tank 130 is below the full liquid level and above the middle sensor, as shown in fig. 19.

The middle sensor generates a second trigger signal, and the upper and lower sensors do not generate a trigger signal, the processing device generates a third liquid level indicating signal, which may indicate that the liquid level of the tank 130 is below the reminder level and above the lowest liquid level, as shown in fig. 20.

Further, when the middle sensor generates the second trigger signal and the lower sensor generates the third trigger signal, the processing device generates a fourth liquid level indicating signal, which indicates that the liquid level of the tank 130 is at the lowest liquid level, as shown in fig. 21.

With the liquid level detection device 120 of each of the above embodiments, preferably, when the upper float is located at the highest position of the upper float, the upper float triggers the upper sensor, the upper sensor generates the first trigger signal, the lower float triggers the middle sensor, the middle sensor generates the second trigger signal, and the lower sensor does not generate the trigger signal.

At this time, the lower float is located at the highest position of the lower float, and the lower float triggers the middle sensor.

With the liquid level detection apparatus 120 of each of the above embodiments, preferably, when the upper float is located between the upper sensor and the middle sensor, the upper float does not trigger the upper sensor, the lower float triggers the middle sensor, the middle sensor generates the second trigger signal, and the lower sensor does not generate the trigger signal.

At this time, the lower float is located at the highest position of the lower float, and the lower float does not trigger the lower sensor.

With the liquid level detection device 120 of each of the above embodiments, it is preferable that the upper float does not trigger the upper sensor and the lower float does not trigger the middle sensor and the lower sensor when the upper float is located at the lowest position of the upper float and the lower float is higher than the lowest position of the lower float.

With the liquid level detection device 120 of each of the above embodiments, it is preferable that when the upper float is located at the lowest position of the upper float and the lower float is located at the lowest position of the lower float, the upper float does not trigger the upper sensor, the lower float triggers the lower sensor, and the lower sensor generates the third trigger signal.

For example, the upper sensor generates a first trigger signal, the middle sensor generates a second trigger signal, and the processing device generates a first level indicator signal when the lower sensor does not generate a trigger signal, which may indicate that the tank 130 is at a full liquid level.

The upper sensor does not generate the first trigger signal, the middle sensor generates the second trigger signal, and the processing device generates the second level indicating signal when the lower sensor does not generate the trigger signal, wherein the second level indicating signal can indicate that the liquid level of the tank 130 is below the full liquid level and above the middle sensor (the middle sensor position can be set as the reminding liquid level).

When the upper sensor, the middle sensor and the lower sensor do not generate the trigger signal, the processing device generates a third liquid level indicating signal, and the third liquid level indicating signal can indicate that the liquid level of the box body 130 is below the reminding liquid level and above the lowest liquid level.

The upper sensor does not generate a trigger signal, the middle sensor does not generate a trigger signal, and the processing device generates a fourth liquid level indicating signal when the lower sensor generates a third trigger signal, wherein the fourth liquid level indicating signal indicates that the liquid level of the tank body 130 is at the lowest liquid level.

For the liquid level detection apparatus 120 of each of the above embodiments, the processing apparatus further includes a communication module, and the processing apparatus can transmit the above-described liquid level indication signal to a terminal device, such as a mobile terminal device like a mobile phone or a desktop computer device.

In the present disclosure, the base 131 of the housing 130 is formed with a second positioning slot 1316, and the lower end of the float guide 122 is disposed in the second positioning slot 1316.

In an alternative embodiment of the present disclosure, as shown in fig. 23, the liquid level detection apparatus 120 includes:

a capacitive liquid level gauge and/or an opto-electronic liquid level gauge for detecting the liquid level within the tank 130.

For example, the capacitance level gauge and/or the photoelectric level gauge may be disposed in the tank 130 or disposed on an outer wall of the tank 130, thereby obtaining a specific height of the liquid level in the tank 130.

In the present disclosure, when the liquid level value detected by the capacitance liquid level meter and/or the photoelectric liquid level meter is 30, calculated by the total liquid level height 100, corresponding to a first preset value; when the liquid level value detected by the capacitance liquid level meter and/or the photoelectric liquid level meter is 70, corresponding to a second preset value; that is, 0-30 (excluding 30) is a low level; 30-70 is the middle liquid level; 70-100 (excluding 70) are high levels.

It will be understood by those skilled in the art that the foregoing embodiments are merely for clarity of illustration of the disclosure and are not intended to limit the scope of the disclosure. Other variations or modifications may be made to those skilled in the art, based on the above disclosure, and still be within the scope of the present disclosure.

Claims

1. A method of fluid interaction of a surface cleaning apparatus and a base station, comprising:

obtaining a current state of the surface cleaning apparatus when the surface cleaning apparatus is docked at the base station; when the current state of the surface cleaning equipment is a starting state, acquiring the working mode of the surface cleaning equipment, and when the working mode of the surface cleaning equipment is a self-cleaning mode, controlling the surface cleaning equipment to carry out self-cleaning; acquiring the liquid level state of a liquid storage tank of the surface cleaning equipment in the self-cleaning process of the surface cleaning equipment; and

controlling fluid interaction between the surface cleaning apparatus and the base station in dependence on a fluid level state of a reservoir of the surface cleaning apparatus;

when the liquid level of the surface cleaning device is lower than a first preset value, controlling the base station to provide cleaning liquid for a liquid storage tank of the surface cleaning device, and enabling the liquid level of the liquid storage tank of the surface cleaning device to be higher than a second preset value; when the liquid level of the liquid storage tank of the surface cleaning equipment is greater than or equal to a first preset value and less than or equal to a second preset value, prompting a user whether cleaning liquid needs to be added into the liquid storage tank of the surface cleaning equipment; when the liquid level of a liquid storage tank of the surface cleaning equipment is greater than a second preset value, prompting a user that the liquid level is full; the second preset value is greater than the first preset value;

when the self-cleaning process of the surface cleaning equipment is finished, when the liquid level of the surface cleaning equipment is higher than a first preset value, the base station is controlled to draw back the cleaning liquid in the surface cleaning equipment, and the liquid level of the surface cleaning equipment is lower than the first preset value; and when the self-cleaning process of the surface cleaning equipment is finished and the liquid level of the surface cleaning equipment is lower than the first preset value, prompting a user that the self-cleaning of the surface cleaning equipment is finished.

2. The method of claim 1, wherein prompting the user whether cleaning liquid needs to be added to the surface cleaning apparatus comprises:

3. The method of claim 1, wherein the user control command is received when the fluid level of the surface cleaning apparatus is greater than or equal to a first predetermined value and less than or equal to a second predetermined value;

4. The method of claim 3, wherein the prompting the user that the fluid level is full comprises:

5. The method of claim 1, further comprising:

6. The method of claim 1, wherein the operating mode of the surface cleaning apparatus is self-cleaning mode by user input of a control command.

7. The method of claim 1, wherein the surface cleaning apparatus is dried and/or disinfected after the surface cleaning apparatus self-cleaning process is completed.

8. The method of claim 7, wherein the drying and/or disinfecting the surface cleaning apparatus comprises:

9. The method of claim 8, wherein determining whether the surface cleaning apparatus has left the base station is performed after drying and/or disinfecting the surface cleaning apparatus; and receiving a control command input by a user; controlling the surface cleaning apparatus to enter a sleep state when the surface cleaning apparatus has not left the base station after a preset time and the user has not entered a control command.

10. The method of claim 1, wherein the method further comprises receiving a user-entered control command when the surface cleaning apparatus is docked at the base station and the current status of the surface cleaning apparatus is on, and operating the surface cleaning apparatus in the automatic priming mode or the self-cleaning mode based on the control command.

11. The method of claim 10, wherein the surface cleaning apparatus is controlled to be in the self-cleaning mode when no control command is input by the user within a predetermined time period to cause the surface cleaning apparatus to operate in the automatic priming mode or the self-cleaning mode.

12. The method of claim 11, wherein the surface cleaning apparatus leaves the base station, remains in the surface cleaning state for a time greater than a predetermined amount of time, and is docked with the base station again, receiving a user-input control command, and operating the surface cleaning apparatus in the automatic priming mode or the self-cleaning mode based on the control command.

13. A readable storage medium having stored therein executable instructions for implementing the method of any one of claims 1 to 12 when executed by a processor.

14. A surface cleaning system comprising a base station and a surface cleaning apparatus, the base station and surface cleaning apparatus being in fluid communication according to the fluid communication method of the surface cleaning apparatus and base station of any of claims 1-12.

15. A surface cleaning system as claimed in claim 14, wherein the surface cleaning apparatus comprises:

a liquid storage tank for storing a cleaning liquid; and

16. The surface cleaning system of claim 15, wherein the fluid level detection device comprises:

a float including a float body and a magnetic portion;

a float guide along which the float is movable in a vertical direction based on a change in a liquid level under a buoyancy of the liquid; and

17. The surface cleaning system of claim 16, wherein the number of the floats is two or more, the number of the magnetic signal sensors is one more than the number of the floats, the float guide portion is provided with guide grooves having the same number as the number of the floats, the respective floats move along the respective guide grooves based on a change in the liquid level by buoyancy of the liquid, and each magnetic signal sensor can be activated by only one float.

18. The surface cleaning system of claim 16, wherein the number of the floats is two or more, the number of the magnetic signal sensors is one more than the number of the floats, the float guide is provided with one less limit portion than the number of the floats, each float moves along the float guide based on a change in the liquid level under buoyancy of the liquid, adjacent two floats are spaced apart by one limit portion, and each magnetic signal sensor can be triggered by only one float.

19. A surface cleaning system as claimed in claim 17 or 18, characterised in that the number of floats is two, an upper float and a lower float, and the number of magnetic signal sensors is three, an upper sensor, a middle sensor and a lower sensor, the upper and middle sensors being triggerable by the upper float and the lower sensor being triggerable by the lower float.

20. A surface cleaning system as claimed in claim 17 or 18, characterised in that the number of floats is two, an upper float and a lower float, and the number of magnetic signal sensors is three, an upper sensor, a middle sensor and a lower sensor, the upper sensor being triggerable only by the upper float and the middle and lower sensors being triggerable by the lower float.

21. The surface cleaning system of claim 15, wherein the fluid level detection device comprises: