CN114869182B

CN114869182B - Surface cleaning apparatus

Info

Publication number: CN114869182B
Application number: CN202210658188.3A
Authority: CN
Inventors: 郑悦; 刘煜; 唐成; 段飞
Original assignee: Beijing Shunzao Technology Co Ltd
Current assignee: Beijing Shunzao Technology Co Ltd
Priority date: 2022-06-10
Filing date: 2022-06-10
Publication date: 2024-09-06
Anticipated expiration: 2042-06-10
Also published as: CN114869182A

Abstract

The present disclosure provides a surface cleaning apparatus comprising: a first cleaning medium storage; a second cleaning medium storage; a cleaning base; a recovery storage unit; a suction device; a power source device; a fluid distribution system; and a controller controlling the fluid distribution system to selectively provide the first cleaning medium and/or the second cleaning medium to the cleaning base and/or the surface to be cleaned adjacent the cleaning base so that the surface cleaning apparatus operates in a liquid cleaning mode and/or a foam cleaning mode; wherein the cleaning medium outlet comprises at least one foam outlet on the agitator of the cleaning base and at least one liquid outlet on or disposed proximate to the agitator of the cleaning base such that the first cleaning medium stored in the first cleaning medium reservoir is discharged from the liquid outlet and the second cleaning medium stored in the second cleaning medium reservoir is discharged from the foam outlet.

Description

Surface cleaning apparatus

Technical Field

The present disclosure relates to a surface cleaning apparatus.

Background

Prior art surface cleaning devices require complete wetting of the swept floor when in use, and for this purpose require application of large amounts of cleaning liquid to the floor. By wetting the hard floor surface, the cleaning head allows dust to be transferred from the floor to the cleaning liquid, which is then removed from the hard floor surface and held as contaminated cleaning liquid in the recovery tank.

Wet surface cleaners generally have: a supply tank containing a cleaning solution; and a recovery tank for recovering contaminants recovered from the floor being cleaned; a motor-driven vacuum source to form a vacuum flow path from the floor being cleaned to the recovery tank; a rechargeable battery to provide energy to each component; and a base station for charging and maintenance after cleaning.

Efforts have been made to further improve the cleaning function of wet surface cleaning apparatus to cope with harsh environments.

For example, PCT/CN2022/087954 describes a cleaning device control method and cleaning device having an internal thermal medium storage chamber for enhancing the cleaning ability of floor stubborn stains by applying a heated cleaning solution to the surface to be cleaned.

Because of the difference in the degree of adhesion of dirt on the floor, the cleaning solution of the hard floor cleaner of the related art requires a relatively high volume to treat the contaminated cleaning solution for a prescribed operation a plurality of times and to refill the cleaning solution, so that the interruption time of the operation becomes long. The refilling typically involves filling the solution tank by hand, and in addition, to further enhance the cleaning effect, a step of mixing with a cleaning agent or chemical to form a cleaning solution is added. Mixing the cleaning liquid by hand takes time and may cause an error in water level detection of the supply tank or the recovery tank due to foaming.

Disclosure of Invention

In order to solve one of the above technical problems, the present disclosure provides a surface cleaning apparatus.

According to one aspect of the present disclosure, there is provided a surface cleaning apparatus comprising:

a first cleaning medium storage for storing a first cleaning medium;

a second cleaning medium storage for storing a second cleaning medium;

a cleaning base for contacting an ambient environment and capable of performing a cleaning operation on a surface to be cleaned of the ambient environment based on at least a first cleaning medium provided by the first cleaning medium reservoir and/or a second cleaning medium provided by the second cleaning medium reservoir;

A recovery storage section for recovering and storing the waste liquid after cleaning the surface to be cleaned;

a suction device in fluid communication with the recovery storage and the cleaning base and capable of generating a suction air flow, the recovery storage for storing waste liquid recovered from the surface to be cleaned based on the suction air flow;

A power source device which provides power for at least the suction device;

A fluid distribution system comprising a cleaning medium outlet; wherein the first cleaning medium reservoir applies the first cleaning medium stored therein in liquid form to the cleaning base and/or to a surface to be cleaned in the vicinity of the cleaning base by means of a fluid distribution system; the second cleaning medium reservoir applies the second cleaning medium stored therein in the form of foam to the cleaning base and/or to the surface to be cleaned in the vicinity of the cleaning base by means of the fluid distribution system; and

A controller controlling the fluid distribution system to selectively provide the first cleaning medium and/or the second cleaning medium to the cleaning base and/or the surface to be cleaned adjacent the cleaning base so that the surface cleaning apparatus operates in a liquid cleaning mode and/or a foam cleaning mode;

Wherein the cleaning medium outlet comprises at least one foam outlet on the agitator of the cleaning base and at least one liquid outlet on or disposed proximate to the agitator of the cleaning base such that the first cleaning medium stored in the first cleaning medium reservoir is discharged from the liquid outlet and the second cleaning medium stored in the second cleaning medium reservoir is discharged from the foam outlet.

A surface cleaning apparatus in accordance with at least one embodiment of the present disclosure, the foam outlet and the liquid outlet share an outlet on an agitator of a cleaning base.

A surface cleaning apparatus in accordance with at least one embodiment of the present disclosure, the foam outlet is positioned differently on the agitator than the liquid outlet.

In accordance with a surface cleaning apparatus of at least one embodiment of the present disclosure, the foam outlet and the liquid outlet are spaced apart in an axial and/or circumferential direction of the agitator.

A surface cleaning apparatus in accordance with at least one embodiment of the present disclosure, the fluid dispensing system includes a first pump assembly positioned between the liquid outlet and a first cleaning medium reservoir and a second pump assembly positioned between the foam outlet and a second cleaning medium reservoir.

A surface cleaning apparatus in accordance with at least one embodiment of the present disclosure, the controller is configured to control the first pump assembly to be turned on and off, and to control the second pump assembly to be turned on and off.

In accordance with at least one embodiment of the present disclosure, the controller controls the first and second pump assemblies such that the first and second pump assemblies are not turned on at the same time.

In accordance with at least one embodiment of the present disclosure, the first pump assembly and/or the second pump assembly is located in a main body portion or a cleaning base portion of the surface cleaning apparatus.

According to at least one embodiment of the present disclosure, the surface cleaning apparatus further includes a solenoid valve provided to a connection line between the first pump assembly and the liquid outlet, and the output and closing of the liquid are achieved by controlling a switch of the solenoid valve.

A surface cleaning apparatus in accordance with at least one embodiment of the present disclosure, the second pump assembly comprising: a detergent pump and a foam generator, wherein the detergent pump is connected to the second cleaning medium storage for inputting the second cleaning medium stored in the second cleaning medium storage to the foam generator, and the foam generator is used for receiving the second cleaning medium, forming foam in the foam generator by disturbing the second cleaning medium, and outputting the foam through an outlet of the foam generator.

The first pump assembly is also used to provide a first cleaning medium to the foam generator in accordance with at least one embodiment of the present disclosure.

In accordance with a surface cleaning apparatus of at least one embodiment of the present disclosure, the volume ratio of the first cleaning medium to the second cleaning medium within the foam generator is 1000:1 to 100:1.

A surface cleaning apparatus according to at least one embodiment of the present disclosure further comprises:

and the foaming operation mechanism is triggered to switch the liquid cleaning mode and the foam cleaning mode.

According to the surface cleaning apparatus of at least one embodiment of the present disclosure, the second cleaning medium reservoir is provided to the main body portion or the cleaning base portion of the surface cleaning apparatus.

According to the surface cleaning apparatus of at least one embodiment of the present disclosure, the recovery storage part includes a sewage tank, and a liquid level detection device for detecting a liquid level position of the liquid in the sewage tank is provided in the sewage tank.

According to the surface cleaning apparatus of at least one embodiment of the present disclosure, the liquid level detecting device includes a float that floats on the liquid of the sewage tank, and obtains a liquid level position of the liquid of the sewage tank according to a position of the float.

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 schematic structural view of a surface cleaning apparatus according to one embodiment of the present disclosure.

Fig. 2 is a schematic diagram of a structure after deleting a part of the surface cleaning apparatus according to an embodiment of the present disclosure.

Fig. 3 and 4 are schematic structural views of a handle portion of a surface cleaning apparatus according to one embodiment of the present disclosure.

Fig. 5 is a schematic structural view of a cleaning base of a surface cleaning apparatus according to one embodiment of the present disclosure.

Fig. 6 is a schematic structural view of an agitator of the cleaning base according to one embodiment of the present disclosure.

Fig. 7 is a schematic view of a structure of a rotating roller according to an embodiment of the present disclosure.

Fig. 8 is a block diagram of a surface cleaning apparatus according to one embodiment of the present disclosure.

Fig. 9 is a block diagram of a surface cleaning apparatus according to another embodiment of the present disclosure.

The reference numerals in the drawings specifically are:

100 handle portion

110 Handle portion

111 Switch operating device

112 Cleaning mode operating mechanism

113 Water supply operating mechanism

114 Self-cleaning operating mechanism

115 Foaming operation mechanism

116 Grip

120 Connecting rod

200 Main body

310 First cleaning medium storage

320 Second cleaning medium storage

400 Recovery storage unit

500 Connection parts

600 Cleaning base

610 Stirrer

611 Foam outlet

612 Liquid outlet

615 Rotating roller

616 Cleaning member

617 Inlet port

618 Hole

620 Driving device

700 Fluid dispensing system

710 First pump assembly

720 Electromagnetic valve

730 Second pump assembly

731 Inlet section

732 Outlet portion

800 Suction device.

Detailed Description

The present disclosure is described in further detail below with reference to the drawings and the embodiments. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant content and not limiting of the present disclosure. It should be further noted that, for convenience of description, only a portion relevant to the present disclosure is shown in the drawings.

In addition, embodiments of the present disclosure and features of the embodiments may be combined with each other without conflict. The technical aspects of the present disclosure will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

Unless otherwise indicated, the exemplary implementations/embodiments shown are to be understood as providing exemplary features of various details of some ways in which the technical concepts of the present disclosure may be practiced. Thus, unless otherwise indicated, features of the various implementations/embodiments may be additionally combined, separated, interchanged, and/or rearranged without departing from the technical concepts of the present disclosure.

The use of cross-hatching and/or shading in the drawings is typically used to clarify the boundaries between adjacent components. As such, the presence or absence of cross-hatching or shading does not convey or represent any preference or requirement for a particular material, material property, dimension, proportion, commonality between illustrated components, and/or any other characteristic, attribute, property, etc. of a component, unless indicated. In addition, in the drawings, the size and relative sizes of elements may be exaggerated for clarity and/or descriptive purposes. While the exemplary embodiments may be variously implemented, the specific process sequences may be performed in a different order than that described. For example, two consecutively described processes may be performed substantially simultaneously or in reverse order from that described. Moreover, like reference numerals designate like parts.

When an element is referred to as being "on" or "over", "connected to" or "coupled to" another element, it can be directly on, connected or coupled to the other element or intervening elements may be present. However, when an element is referred to as being "directly on," "directly connected to," or "directly coupled to" another element, there are no intervening elements present. For this reason, the term "connected" may refer to physical connections, electrical connections, and the like, with or without intermediate components.

For descriptive purposes, the present disclosure may use spatially relative terms such as "under … …," under … …, "" under … …, "" lower, "" above … …, "" upper, "" above … …, "" upper "and" side (e.g., as in "sidewall") to describe one component's relationship to another (other) component as illustrated in the figures. In addition to the orientations depicted in the drawings, the spatially relative terms are intended to encompass different orientations of the device in use, operation, and/or manufacture. For example, if the device in the figures is turned over, elements described as "under" or "beneath" other elements or features would then be oriented "over" the other elements or features. Thus, the exemplary term "below … …" may encompass both an orientation of "above" and "below". Furthermore, the device may be otherwise positioned (e.g., rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. Furthermore, when the terms "comprises" and/or "comprising," and variations thereof, are used in the present specification, the presence of stated features, integers, steps, operations, elements, components, and/or groups thereof is described, but the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof is not precluded. It is also noted that, as used herein, the terms "substantially," "about," and other similar terms are used as approximation terms and not as degree terms, and as such, are used to explain the inherent deviations of measured, calculated, and/or provided values that would be recognized by one of ordinary skill in the art.

Fig. 1 is a schematic structural view of a surface cleaning apparatus according to one embodiment of the present disclosure. Fig. 2 is a schematic diagram of a structure after deleting a part of the surface cleaning apparatus according to an embodiment of the present disclosure.

As shown in fig. 1 and 2, the surface cleaning apparatus of the present disclosure includes a handle portion 100, a main body portion 200, a first cleaning medium reservoir 310, a second cleaning medium reservoir 320, a recovery storage portion 400, a connection portion 500, and a cleaning base portion 600.

As shown in fig. 3 and 4, the handle portion 100 may include a grip portion 110 and a connection rod 120 connected to the grip portion 110. The handle portion 110 is intended to be held by a user for operating the surface cleaning apparatus.

An on-off operation mechanism 111 and/or a cleaning mode operation mechanism 112 may be provided on the handle portion 110, whereby the on-off operation mechanism 111 and/or the cleaning mode operation mechanism 112 can be conveniently triggered when the user is using the surface cleaning apparatus. When the surface cleaning apparatus of the present disclosure is used, a user may turn on or off the surface cleaning apparatus by pressing the on-off operation mechanism 111 for a long time, and in a preferred embodiment, when the on-off operation mechanism 111 is pressed for 3 seconds or more, an on-off signal is generated and the surface cleaning apparatus is turned on or off according to the on-off signal, so as to prevent the user from turning on or off the surface cleaning apparatus by mistake.

The user may implement the switching of the cleaning mode by triggering the cleaning mode operation mechanism 112, and in one embodiment, the cleaning modes include a liquid cleaning mode and a foam cleaning mode, and accordingly, when the cleaning mode operation mechanism 112 is triggered, the current liquid cleaning mode can be replaced with the foam cleaning mode, or the current foam cleaning mode can be replaced with the liquid cleaning mode. The liquid cleaning mode and the foam cleaning mode will be described in detail below.

Further, the handle 110 may further be provided with a water supply operation mechanism 113, the water supply operation mechanism 113 and the on-off operation mechanism 111 may be disposed away from each other, and accordingly, the water supply operation mechanism 113 and the cleaning mode operation mechanism 112 may be disposed away from each other, so that the user does not erroneously trigger the on-off operation mechanism 111 and/or the cleaning mode operation mechanism 112 when the water supply operation mechanism 113 is triggered. In the present disclosure, when the user activates the water feeding operation mechanism 113, fluid interaction between the surface cleaning apparatus and the base station can be enabled, for example, the base station can supply cleaning liquid to the surface cleaning apparatus or the base station can pump back the liquid of the surface cleaning apparatus to the base station.

In one embodiment, the handle 110 is further provided with a self-cleaning operation mechanism 114, and the self-cleaning operation mechanism 114 and the on-off operation mechanism 111 are disposed away from each other, and accordingly, the self-cleaning operation mechanism 114 and the cleaning mode operation mechanism 112 can also be disposed away from each other, so that the user does not erroneously trigger the on-off operation mechanism 111 and/or the cleaning mode operation mechanism 112 when triggering the self-cleaning operation mechanism 114. In the present disclosure, when the user triggers the self-cleaning operation mechanism 114, the cleaning base 600 of the surface cleaning apparatus can be self-cleaned.

That is, in the present disclosure, the on-off operation mechanism 111 and the cleaning mode operation mechanism 112 may be disposed adjacently, and accordingly, the water supply operation mechanism 113 and the self-cleaning operation mechanism 114 may be disposed adjacently.

In a preferred embodiment, the water feeding and self-cleaning operation mechanisms 113, 114 are located on top of the handle portion 110 in the upright position of the surface cleaning apparatus; on the other hand, the handle portion 110 includes a grip portion 116, and when the surface cleaning apparatus is in use, the user holds the grip portion 116 with his or her hand, and at this time, the water supply operation mechanism 113 and the self-cleaning operation mechanism 114 are located at one end of the grip portion and may be located behind the user's hand; the on-off operation mechanism 111 and the cleaning mode operation mechanism 112 are located at the other end of the grip portion, and may be located in front of the user's hand.

In the present disclosure, the handle portion 110 may further be provided with a foaming operation mechanism 115, and the foaming operation mechanism 115 may be provided at a position where a thumb or an index finger is convenient to operate when the user operates the surface cleaning apparatus. For example, the foaming operation mechanism 115 may be a mechanically triggered resettable switch and may be disposed under the grip portion 116, and when the foaming operation mechanism 115 is triggered by a user, foam may be output to the surface to be cleaned through the cleaning base portion 600.

In another embodiment, the surface cleaning apparatus may include a soil sensor for detecting a degree of cleanliness of the surface to be cleaned, and the foam cleaning mode may be automatically activated when the degree of cleanliness of the surface to be cleaned detected by the soil sensor is less than a certain preset value, i.e., the surface to be cleaned is relatively dirty.

In the present disclosure, at least one of the on-off operation mechanism 111, the cleaning mode operation mechanism 112, the water supply operation mechanism 113, the self-cleaning operation mechanism 114, and/or the foaming operation mechanism 115 is triggered by touching, pressing, or pushing.

As shown in fig. 1 and 2, the handle part 100 is connected to the main body part 200, and in particular, the connection rod 120 can be connected to the upper end of the main body part 200, thereby enabling the main body part 200 to be in an inclined state or an upright state when the user operates the handle part 110, and enabling the surface cleaning apparatus to be in an operating state when the main body part is in an inclined state; when the surface cleaning apparatus is in the upright state, the surface cleaning apparatus is in the closed state.

The main body part 200 is formed as a main frame of the surface cleaning apparatus, and a lower end of the main body part 200 is connected to the cleaning base part 600 through the connection part 500. The connection part 500 may be of a hollow structure, and all of the air, fluid communication, and lines required for power supply, etc. between the main body part 200 and the cleaning base part 600 such as a floor brush may be realized by the connection part 500, so that power supply, communication of air and/or liquid, etc. may be realized between the main body part 200 and the cleaning base part 600 via wiring and/or piping through the connection part 500.

In one embodiment, the connection part 500 may include a universal joint to enable the main body part 200 to rotate in two directions with respect to the cleaning base part 600; in another embodiment, the connection 500 may include a multi-axis joint that may couple the main body 200 with the cleaning base 600 to allow the main body 200 to rotate in a first direction and a second direction relative to the cleaning base 600.

The side of the main body part 200 is formed with a receiving space so that the first cleaning medium storage 310, the second cleaning medium storage 320, and the recovery storage part 400 can be disposed in the main body part 200 and located in the receiving space.

In one embodiment, the first cleaning medium storage 310 is used to store a first cleaning medium, which is a liquid cleaning medium, such as clear water, tap water, or clear water and tap water mixed with a cleaning agent, etc.

Accordingly, the second cleaning medium storage 320 is used to store a second cleaning medium, which may be a surfactant or the like, thereby being capable of forming foam by the second cleaning medium.

In one embodiment, the first and second cleaning medium reservoirs 310 and 320 are capable of providing the first and second cleaning media to the cleaning base 600 or a surface to be cleaned in the vicinity of the cleaning base 600 through the fluid distribution system 700.

In particular, the fluid dispensing system 700 may include a cleaning medium outlet, wherein the first cleaning medium reservoir 310 applies the first cleaning medium stored therein in liquid form to the cleaning base 600 and/or to a surface to be cleaned in the vicinity of the cleaning base 600 via the fluid dispensing system 700; the second cleaning medium reservoir 320 applies its stored second cleaning medium in the form of foam to the cleaning base 600 and/or to the surface to be cleaned in the vicinity of the cleaning base 600 via the fluid dispensing system 700.

Fig. 5 is a schematic structural view of a cleaning base of a surface cleaning apparatus according to one embodiment of the present disclosure. Fig. 6 is a schematic structural view of an agitator of the cleaning base according to one embodiment of the present disclosure. Fig. 7 is a schematic view of a structure of a rotating roller according to an embodiment of the present disclosure.

In one implementation, as shown in fig. 5 to 7, the cleaning medium outlet includes at least one foam outlet 611 on the agitator 610 of the cleaning base 600, and at least one liquid outlet 612 on the agitator 610 of the cleaning base 600 or disposed near the agitator 610, such that the first cleaning medium stored in the first cleaning medium reservoir 310 is discharged from the liquid outlet 612, and the second cleaning medium stored in the second cleaning medium reservoir 320 is discharged from the foam outlet 611.

In a specific embodiment, the foam outlet 611 shares an outlet on the agitator 610 of the cleaning base 600 with the liquid outlet 612; thus, when the surface cleaning apparatus is operated in the liquid cleaning mode, the first cleaning medium can be output in the form of liquid through the outlet on the agitator 610, and accordingly, when the surface cleaning apparatus is operated in the foam cleaning mode, the second cleaning medium can be output in the form of foam.

Those skilled in the art will appreciate that when the second cleaning medium is being delivered, an appropriate amount of the first cleaning medium may also be delivered, thereby delivering a thinner foam outwardly at the outlet of the agitator 610.

On the other hand, the foam outlet 611 is positioned differently from the liquid outlet 612 on the agitator 610; when the surface cleaning apparatus of the present disclosure is operated in the liquid cleaning mode, the first cleaning medium can be output in a liquid form through the liquid outlet 612, and accordingly, when the surface cleaning apparatus is operated in the foam cleaning mode, the second cleaning medium can be output in a foam form through the foam outlet 611, whereby the liquid output line and the foam output line can be formed as independent lines.

Still further, when the foam outlet 611 and the liquid outlet 612 are formed as separate outlets, the foam outlet 611 and the liquid outlet 612 are spaced apart from each other in the axial direction and/or the circumferential direction of the agitator 610.

Fig. 8 is a block diagram of a surface cleaning apparatus according to one embodiment of the present disclosure. Fig. 9 is a block diagram of a surface cleaning apparatus according to another embodiment of the present disclosure.

In one embodiment, as shown in fig. 8 and 9, the fluid dispensing system 700 may include a first pump assembly 710, the first pump assembly 710 being positioned between the liquid outlet 612 and the first cleaning medium reservoir 310 to pressurize the first cleaning medium in the first cleaning medium reservoir 310 by the first pump assembly 710 and then output to the liquid outlet 612. In one embodiment, the first pump assembly 710 may be selected as a peristaltic pump such that the first pump assembly 710 is capable of shutting off the fluid supply of the first cleaning medium reservoir 310 to the liquid outlet 612 in the closed state.

In the present disclosure, the fluid distribution system 700 may further include a solenoid valve 720, the solenoid valve 720 being disposed at a connection line between the first pump assembly 710 and the fluid outlet 612, and the fluid output and closing being achieved by controlling the opening and closing of the solenoid valve 720.

More preferably, the fluid distribution system 700 further includes a second pump assembly 730, the second pump assembly 730 being located between the foam outlet 611 and the second cleaning medium reservoir 320, whereby when the second pump assembly 730 is in an operating state, the second cleaning medium in the second cleaning medium reservoir 320 can be formed into a foam state and the second cleaning medium in the foam state is output to the foam outlet 611.

In one embodiment, the second pump assembly 730 is formed as a foam pump including a detergent pump connected to the second cleaning medium storage 320 for inputting the second cleaning medium stored in the second cleaning medium storage 320 to the foam generator, and a foam generator for receiving the second cleaning medium and forming the foam therein by disturbing the second cleaning medium and outputting the foam through an outlet of the foam generator, and further, the foam flows to the foam outlet 611, i.e., the foam flows outwardly from the foam outlet 611.

Thus, in the present disclosure, the surface to be cleaned can be wetted with the foam formed by the second cleaning medium, so that the second cleaning medium is used in a smaller amount, the amount of residues remaining on the hard surface to be cleaned can be effectively reduced, the waste of the cleaning agent is reduced, and the interval time between two additions of the cleaning agent is prolonged.

In the present disclosure, the controller controls the fluid distribution system 700 to selectively provide the first cleaning medium and/or the second cleaning medium to the cleaning base 600 and/or the surface to be cleaned near the cleaning base 600 so that the surface cleaning apparatus operates in the liquid cleaning mode and/or the foam cleaning mode.

Specifically, the controller is used to control the first pump assembly 710 to be turned on and off, and to control the second pump assembly 730 to be turned on and off, and selectively switch between the liquid cleaning mode and the foam cleaning mode by controlling the first pump assembly 710 to be turned on and off, and controlling the second pump assembly 730 to be turned on and off.

As a preferred option, the first pump assembly 710 and the second pump assembly 730 are not turned on at the same time; thereby enabling the surface cleaning apparatus to be selectively operated in a liquid cleaning mode and a foam cleaning mode.

In the present disclosure, the first pump assembly 710 may be located at the main body part 200 of the surface cleaning apparatus or the cleaning base part 600, and preferably, the first pump assembly 710 is located at the main body part 200 of the surface cleaning apparatus; on the other hand, the second pump assembly 730 may be located at the main body portion 200 or the cleaning base portion 600 of the surface cleaning apparatus, and preferably, the second pump assembly 730 is located at the cleaning base portion 600 of the surface cleaning apparatus.

The cleaning base 600 is used to contact the surrounding environment, and is capable of performing a cleaning operation on a surface to be cleaned of the surrounding environment based on at least the first cleaning medium provided by the first cleaning medium reservoir 310 and/or the second cleaning medium provided by the second cleaning medium reservoir 320.

That is, the cleaning base 600 can be formed as a cleaning head device of a surface cleaning apparatus, and the surface to be cleaned is cleaned by contact of the cleaning base 600 with the surface to be cleaned.

In one embodiment, the second pump assembly 730 may be located at the cleaning base and have an inlet portion 731 for receiving a second cleaning medium or a mixed liquid (e.g., a mixed liquid of the second cleaning medium and water, etc.) and an outlet portion 732 for outputting foam and capable of being connected to the foam outlet 611.

In the cleaning base, the agitator 610 is formed in the form of a roll brush and is rotatable along its axis, for example by driving the agitator 610 to rotate by a driving means 620. In a preferred embodiment, the driving means 620 may be a motor and the agitator 610 is driven to rotate by a belt transmission.

In the present disclosure, the agitator 610 may include a rotating roller 615 and a cleaning member 616 located outside the rotating roller 615, and cleaning of the surface to be cleaned is achieved by frictional contact of the cleaning member 616 with the surface to be cleaned.

The rotating roller 615 may be rotatably driven by a driving device 620, and in the present disclosure, an inlet 617 may be formed at one end of the rotating roller 615, and the inlet 617 may be capable of entering a first cleaning medium in a liquid form or a second cleaning medium in a foam form; in one implementation, the inlet 617 may be provided with two pipes to simultaneously input the first cleaning medium in a liquid form or the second cleaning medium in a foam form to the inside of the rotating roller 615.

Holes 618 are formed in the surface of the rotating roller 615, which may be formed as a cleaning medium outlet, and in one embodiment, the holes can discharge both the first cleaning medium in a liquid form and the second cleaning medium in a foam form; in another embodiment, a portion of the holes are used to expel a first cleaning medium in liquid form and a portion of the holes are used to expel a second cleaning medium in foam form.

Of course, the holes of the surface of the rotating roller 615 of the present disclosure may be used only for discharging the second cleaning medium in the form of foam, and the cleaning medium output port for discharging the first cleaning medium in the form of liquid may be located at the rear of the agitator 610 instead of being located on the agitator 610.

In a preferred embodiment, the second cleaning medium reservoir 320 may be provided not to the main body part 200 but to the cleaning base part 600, thereby enabling a pipe between the second cleaning medium reservoir 320 and the foam outlet to be sufficiently short, and thus enabling the second cleaning medium stored in the pipe to be sufficiently small, reducing waste of the second cleaning medium.

The second cleaning medium storage 320 may be a fixed-volume device, such as a box-shaped container formed of a plastic material, or a variable-volume device, such as a bag-shaped container, and in this case, the bag-shaped container has a larger volume when the amount of the second cleaning medium stored in the bag-shaped container is large; on the other hand, when the amount of the second cleaning medium stored in the bag-like container is small, the bag-like container has a small volume.

The recovery storage part 400 is used for recovering and storing the waste liquid after cleaning the surface to be cleaned; the suction device 800 is in fluid communication with the recovery storage 400 and the cleaning base 600 and is capable of generating a suction air flow, the recovery storage 400 being adapted to store waste liquid recovered from the surface to be cleaned based on the suction air flow; that is, the surface cleaning apparatus of the present disclosure achieves recovery of waste liquid by the principle of negative pressure adsorption.

When the surface cleaning apparatus is operating in the foam cleaning mode, the suction device 800 may not be activated at this time, considering that less foam remains on the floor; or when the user performs the cleaning operation of the surface to be cleaned for the first time by the foam cleaning mode and then performs the cleaning operation of the surface to be cleaned for the second time by the foam cleaning mode and the liquid cleaning mode, the suction device 800 may not be activated at the time of the cleaning operation of the surface to be cleaned for the first time.

In the present disclosure, the surface cleaning apparatus may further include a power source device that provides power to at least the suction device 800; and the impeller of the suction device 800 is rotated by the power provided by the power source device, generating negative pressure.

In the present disclosure, the recovery storage unit 400 includes a sewage tank, and a liquid level detection device is disposed in the sewage tank, and the liquid level detection device is configured to detect a liquid level position of the liquid in the sewage tank.

Considering that the surface cleaning apparatus of the present disclosure can operate in the foam cleaning mode, there will be a large amount of foam in the recovery storage 400 accordingly, at this time, if the liquid level detection device is set in the form of a probe, the foam will cause the probe to be turned on by mistake.

Based on this, the liquid level detection device of the present disclosure includes a float that floats on the liquid of the sewage tank, and obtains a liquid level position of the liquid of the sewage tank according to a position of the float; in a preferred embodiment, the float may be provided with a magnetic part capable of emitting a magnetic field outwards, and a magnetic field detection device such as a reed pipe is mounted on the outer side wall of the sewage tank to obtain the position of the float according to the position of the magnetic part and obtain the liquid level position of the liquid in the sewage tank according to the position of the float.

The second cleaning medium may include components such as a surfactant, an abrasive, and a solvent, and may include one or more selected from anionic surfactants, non-anionic surfactants, and cationic surfactants, for example.

In one embodiment, the first pump assembly 710 is also used to provide the first cleaning medium to the foam generator, that is, at this point the first cleaning medium may mix with the second cleaning medium in the foam generator and form a foam. Preferably, the volume ratio of the first cleaning medium to the second cleaning medium is 1000:1 to 100:1, so that a user can lengthen the use time of the second cleaning medium and reduce the frequency of adding the second cleaning medium when using the surface cleaning apparatus.

In addition, the foam formed by the method has less detergent remained on the surface to be cleaned, and the cleaning efficiency of stubborn stains can be remarkably improved.

In the description of the present specification, reference to the terms "one embodiment/manner," "some embodiments/manner," "example," "a particular example," "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment/manner or example is included in at least one embodiment/manner or example of the application. In this specification, the schematic representations of the above terms are not necessarily for the same embodiment/manner or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments/modes or examples. Furthermore, the various embodiments/modes or examples described in this specification and the features of the various embodiments/modes or examples can be combined and combined by persons skilled in the art without contradiction.

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

It will be appreciated by those skilled in the art that the above-described 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 will be apparent to persons skilled in the art from the foregoing disclosure, and such variations or modifications are intended to be within the scope of the present disclosure.

Claims

1. A surface cleaning apparatus comprising:

a first cleaning medium storage for storing a first cleaning medium;

a second cleaning medium storage for storing a second cleaning medium;

A power source device which provides power for at least the suction device;

A fluid distribution system comprising a cleaning medium outlet; wherein the first cleaning medium reservoir applies the first cleaning medium stored therein in liquid form to the cleaning base via the fluid dispensing system; the second cleaning medium reservoir applying its stored second cleaning medium in the form of foam to the cleaning base via the fluid dispensing system;

A main body portion formed as a main frame of the surface cleaning apparatus, a side portion of the main body portion being formed with an accommodation space such that the first cleaning medium storage, the second cleaning medium storage, and the recovery storage portion can be disposed in the main body portion and located in the accommodation space; and the lower end of the main body part is connected with the cleaning base part through the connecting part so as to allow the main body part to rotate along a first direction and a second direction relative to the cleaning base part;

A handle portion that, when operated by a user, causes the main body portion to be in an inclined state or an upright state; and

A controller controlling the fluid distribution system to selectively provide the first cleaning medium and/or the second cleaning medium to the cleaning base for the surface cleaning apparatus to operate in a liquid cleaning mode and/or a foam cleaning mode;

Wherein the cleaning medium outlet comprises at least one foam outlet on the agitator of the cleaning base and at least one liquid outlet on the agitator of the cleaning base such that the first cleaning medium stored in the first cleaning medium reservoir is discharged from the liquid outlet and the second cleaning medium stored in the second cleaning medium reservoir is discharged from the foam outlet;

Wherein the fluid dispensing system comprises a first pump assembly located between the liquid outlet and a first cleaning medium reservoir and a second pump assembly located between the foam outlet and a second cleaning medium reservoir.

2. The surface cleaning apparatus of claim 1, wherein the foam outlet and the liquid outlet share an outlet on the agitator of the cleaning base.

3. The surface cleaning apparatus of claim 1, wherein the foam outlet is positioned differently on the agitator than the liquid outlet.

4. A surface cleaning apparatus as claimed in claim 1, wherein the foam outlet and the liquid outlet are spaced apart in the axial and/or circumferential direction of the agitator.

5. The surface cleaning apparatus of claim 1, wherein the controller is configured to control the first pump assembly to be turned on and off and to control the second pump assembly to be turned on and off.

6. The surface cleaning apparatus of claim 5, wherein the controller controls the first pump assembly and the second pump assembly such that the first pump assembly and the second pump assembly are not on at the same time.

7. The surface cleaning apparatus of claim 1, wherein the first pump assembly and/or the second pump assembly is located in a main body portion or a cleaning base portion of the surface cleaning apparatus.

8. The surface cleaning apparatus of claim 1, wherein the fluid dispensing system further comprises a solenoid valve disposed in the connecting line between the first pump assembly and the liquid outlet, and wherein the output and closing of the liquid is achieved by controlling the switching of the solenoid valve.

9. The surface cleaning apparatus of claim 1, wherein the second pump assembly comprises: a detergent pump and a foam generator, wherein the detergent pump is connected to the second cleaning medium storage for inputting the second cleaning medium stored in the second cleaning medium storage to the foam generator, and the foam generator is used for receiving the second cleaning medium, forming foam in the foam generator by disturbing the second cleaning medium, and outputting the foam through an outlet of the foam generator.

10. The surface cleaning apparatus of claim 9, wherein the first pump assembly is further configured to provide a first cleaning medium to the foam generator.

11. The surface cleaning apparatus of claim 10, wherein a volume ratio of the first cleaning medium to the second cleaning medium within the foam generator is from 1000:1 to 100:1.

12. The surface cleaning apparatus of claim 1, further comprising:

13. The surface cleaning apparatus of claim 1, wherein the second cleaning medium reservoir is disposed on a main body portion or a cleaning base portion of the surface cleaning apparatus.

14. The surface cleaning apparatus of claim 1, wherein the recovery storage section includes a sump having a liquid level detection device disposed therein for detecting a liquid level position of the liquid in the sump.

15. The surface cleaning apparatus of claim 14, wherein the liquid level detection device includes a float that floats on the liquid of the tank and obtains a level position of the liquid of the tank based on a position of the float.