Surface cleaning systems

Abstract

The present application relates to a surface cleaning system, comprising a surface cleaning machine and a self-cleaning base station capable of docking with the surface cleaning machine, the surface cleaning machine comprising a cleaning base, a suction motor, a cleaning liquid supply tank, a steam generator and a dirty liquid recovery tank, the self-cleaning base station comprising: a shell capable of supporting the cleaning base and receiving at least part of the cleaning base; a groove located at the front of the shell and capable of receiving at least part of a brush roller during docking of the surface cleaning machine with the self-cleaning base station; and a steam transfer flow channel arranged on the shell and comprising a steam access end and at least one second steam output port; the steam access end is constructed to be capable of docking with at least one first steam output port so as to guide the steam output from the at least one first steam output port to be output at at least one second steam output port; the at least one second steam output port is located at the groove and is constructed to be capable of spraying steam onto the brush roller received at the groove.

Description

Technical Field

[0001] The present invention relates to the field of cleaning equipment, in particular to a surface cleaning system. Background Art

[0002] A surface cleaning machine is currently available, comprising a cleaning base and a vertical body rotatably connected to the cleaning base. The cleaning base includes a brush roller that contacts the surface to be cleaned, a fluid distributor that supplies cleaning fluid to the brush roller, and a steam distributor that applies steam to the surface to be cleaned. During operation, the surface cleaning machine simultaneously utilizes the brush roller, moistened with cleaning fluid, and high-temperature steam to achieve effective cleaning results. However, if the brush roller is not cleaned promptly or thoroughly after operation, mold may grow on the brush roller, eventually deteriorating and becoming unusable. Summary of the Invention

[0003] In view of the above-mentioned technical problem that the brush roller of the surface cleaning machine needs to be cleaned in time after operation, an object of the present invention is to provide a surface cleaning system, which is equipped with a self-cleaning base capable of cleaning the brush roller.

[0004] In order to achieve the above-mentioned objectives, the present invention provides the following technical solutions: a surface cleaning system, comprising a surface cleaning machine and a self-cleaning base station capable of docking with the surface cleaning machine, the surface cleaning machine comprising a cleaning base, a suction motor, a cleaning liquid supply tank, a steam generator, and a dirty liquid recovery tank, the cleaning base being provided with a roller chamber, a rotatable brush roller located in the roller chamber, a brush roller motor driving the brush roller to rotate, a fluid distributor for distributing cleaning liquid to the brush roller, and at least one steam output port for directly spraying steam generated by the steam generator onto a surface to be cleaned, the at least one first steam output port being located at the bottom of the cleaning base and behind the brush roller, the roller chamber, the dirty liquid recovery tank, and the suction motor being fluidically connected in sequence; It is characterized in that the self-cleaning base station includes: a shell, capable of supporting the cleaning base and receiving at least part of the cleaning base; a groove, located at the front of the shell and capable of receiving at least part of the brush roller during the docking of the surface cleaning machine with the self-cleaning base station; and a steam transfer flow channel, arranged on the shell and including a steam access end and at least one second steam output port; the steam access end is constructed to be able to dock with the at least one first steam output port so as to guide the steam output from the at least one first steam output port to be output at the at least one second steam output port; the at least one second steam output port is located at the groove and is constructed to be able to spray steam to the brush roller received at the groove.

[0005] In the above technical solution, preferably, the at least one second steam output port is located at the bottom of the groove.

[0006] In the above technical solution, preferably, the total number of the second steam output ports is consistent with the total number of the first steam output ports.

[0007] In the above technical solution, preferably, the at least one second steam outlet includes a plurality of second steam outlets, and the plurality of second steam outlets are arranged along the length of the brush roller. Further preferably, the plurality of second steam outlets are arranged along a horizontal straight line, and the horizontal straight line is parallel to the rotation axis of the brush roller at the groove.

[0008] In the above technical solution, preferably, the surface cleaning machine includes an upright body with a handle at the top, the lower portion of the upright body being rotatably connected to the cleaning base. Further preferably, the cleaning liquid supply tank and the dirty liquid recovery tank are each detachably mounted on the upright body.

[0009] In the above technical solution, preferably, the surface cleaning machine further comprises a first pump for supplying the cleaning liquid in the cleaning liquid supply tank to the fluid dispenser and a second pump for supplying the cleaning liquid in the cleaning liquid supply tank to the steam generator.

[0010] In the above technical solution, preferably, the surface cleaning machine includes a controller, which is controlled and connected with the suction motor, the brush roller motor, the first pump and the second pump. The controller runs a self-cleaning control program during the docking of the surface cleaning machine with the self-cleaning base station, and the self-cleaning control program includes the steps of controlling the start-up of the second pump and prohibiting the start-up of the first pump.

[0011] In the above-mentioned preferred scheme, it is further preferred that the self-cleaning control program also includes the steps of controlling the start-up of the first pump and prohibiting the start-up of the second pump; wherein, in the self-cleaning control program, the time point of controlling the start-up of the two pumps and prohibiting the start-up of the first pump is later than the time point of controlling the start-up of the first pump and prohibiting the start-up of the second pump.

[0012] In the above preferred solution, further preferably, the self-cleaning control program further includes: in the process of controlling the second pump to start working and prohibiting the first pump to start working, controlling the brush roller motor to rotate intermittently.

[0013] In the above preferred embodiment, it is further preferred that the surface cleaning system further includes: a self-cleaning switch configured on the self-cleaning base station and / or the surface cleaning machine, and the self-cleaning switch can be operated by a user to trigger the controller to execute the self-cleaning control program.

[0014] In the above preferred embodiment, it is further preferred that the surface cleaning system also includes a position sensing element configured on the self-cleaning base station and / or the surface cleaning machine, the position sensing element is connected to the controller signal and is configured to be triggered when the surface cleaning base station is correctly placed on the self-cleaning base station, and the controller is constructed to automatically execute the self-cleaning control program after the position sensing element is triggered.

[0015] Compared with the existing technology, the surface cleaning machine provided by the present invention can directly apply steam to the surface to be cleaned, thereby sterilizing the surface to be cleaned; and during the docking of the surface cleaning machine with the self-cleaning base station, the steam generated thereon can be guided to the self-cleaning base station and sprayed toward the brush roller, thereby effectively cleaning and sterilizing the brush roller with the help of the high-temperature steam. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a three-dimensional structural diagram of the surface cleaning system provided by the present invention; wherein the surface cleaning machine is supported on a self-cleaning base station;

[0017] Figure 2 for Figure 1 a disassembled view of the surface cleaning machine shown;

[0018] Figure 3 for Figure 1 a side cross-sectional view of the cleaning base of the illustrated surface cleaning machine;

[0019] Figure 4 for Figure 1 The schematic structural diagram of the surface cleaning machine shown is as follows;

[0020] Figure 5 for Figure 1 The three-dimensional structure diagram of the self-cleaning base station shown;

[0021] Figure 6 for Figure 1 A side cross-sectional view of the self-cleaning base station shown; wherein the cleaning base is supported on the self-cleaning base station;

[0022] Figure 7 for Figure 1 A three-dimensional structural diagram of the steam transfer flow channel of the self-cleaning base station shown;

[0023] Figure 8 for Figure 1The electrical connection diagram of the controller of the surface cleaning system shown is as follows,

[0024] Figure 9 Schematic diagram of electrical connections of a controller of a surface cleaning system according to a second embodiment.

[0025] 10. Surface cleaning machine; 20. Self-cleaning base station; 30. Controller;

[0026] 1. Cleaning base; 11. Base body; 12. Lower opening; 13. Roller chamber; 14. Brush roller; 15. Cleaning liquid dispenser; 16. Flexible partition; 17. Steam distributor; 18. First steam outlet; 19. Suction port; 11. Suction nozzle;

[0027] 2. Vertical body; 21. Handle; 211. Operation unit; 22. Housing;

[0028] 31. Cleaning liquid supply tank; 32. Steam generator; 33. First pump; 34. Second pump;

[0029] 41. Waste liquid recovery tank; 42. Suction motor;

[0030] 5. Shell; 51. Support seat; 511. Support surface; 512. Outer peripheral wall; 52. Base;

[0031] 6. Groove; 7. Steam transfer channel; 71. Steam interface; 72. Tube body; 73. Second steam output port;

[0032] 8. Position sensing element; 9. Self-cleaning switch. DETAILED DESCRIPTION

[0033] In order to describe the technical content, structural features, achieved purposes and effects of the invention in detail, the technical solutions in the embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all of the embodiments. In the following description, for the purpose of explanation, many specific details are set forth to provide a detailed description of various exemplary embodiments or implementations of the invention. However, various exemplary embodiments may also be implemented without these specific details or in the presence of one or more equivalent arrangements. In addition, various exemplary embodiments may be different, but are not necessarily exclusive. For example, without departing from the inventive concept, the specific shape, structure and characteristics of the exemplary embodiment may be used or implemented in another exemplary embodiment.

[0034] For the purpose of description in relation to the accompanying drawings, the terms "upper," "lower," "left," "right," "front," "rear," "vertical," "horizontal," "inner," "outer," and their derivatives are used in a defined positional relationship relative to the direction in which a user stands on the surface to be cleaned and pushes the surface cleaning machine 10 (i.e., a pushing direction from back to front). As used herein, the term "rear" refers to a position behind at least one other component, but does not necessarily mean behind all other components. However, it should be understood that the present invention may assume various alternative orientations unless an opposite orientation is explicitly indicated.

[0035] Figure 1 The surface cleaning system provided by the present invention comprises a surface cleaning machine 10, a cleaning tray 20 capable of docking with the surface cleaning machine 10, and a controller 30 provided with a self-cleaning control program (see FIG. Figure 8 The surface cleaning machine 10 can clean the surface to be cleaned and can be placed on the cleaning tray 20 for self-cleaning.

[0036] See Figure 2 The surface cleaning machine 10 is an upright cleaning machine comprising a cleaning base 1 and an upright body 2 located above the cleaning base 1. The lower portion of the upright body 2 is pivotally connected to the cleaning base 1. The upright body 2 has a storage position in which it stands upright relative to the cleaning base 1 for storage, and a working position in which it is tilted backward relative to the cleaning base 1 for a user to push the surface cleaning machine 10.

[0037] Combine Figure 3-4 The cleaning base 1 includes a base body 11 that forms its outer contour, a roller chamber 13 with a lower opening 12, a brush roller 14 rotatably arranged in the roller chamber 13, a suction nozzle 19 located inside the cleaning base 1 and adjacent to the rear side of the roller chamber 13, and a cleaning liquid dispenser 15 that partially extends into the roller chamber 13. The top of the base body 11 is equipped with a rotating joint (not shown) that can rotate relative to the main body. The lower portion of the upright body 2 is fixedly connected to this rotating joint, allowing the upright body 2 to rotate back and forth between an upright storage position and a rearward-tilted working position.

[0038] The lower opening 12 of the roller chamber 13 faces the surface to be cleaned, and the lower part of the brush roller 14 passes through the lower opening 12 to contact the surface to be cleaned. The cleaning liquid dispenser 15 faces the brush roller 14 and is configured to receive cleaning liquid from the cleaning liquid path (see below) and distribute the cleaning liquid on the outer peripheral surface of the brush roller 14. The brush roller 14 defines a rotation axis extending left and right (not shown in the figure), and the cleaning base 1 is also equipped with a brush roller motor (not shown in the figure) that is connected to the brush roller 14 to drive the brush roller 14 to rotate around the rotation axis. The outer side of the brush roller 14 is covered with cleaning elements that may have bristles, fabrics, rubber bodies, etc., and these cleaning elements are configured to be wetted by the cleaning liquid.

[0039] The cleaning base 1 is provided with a flexible partition 16, a steam distributor 17, and a suction port 18 in the rearward direction from the front to the rear side of the lower opening 12. The flexible partition 16 contacts the surface to be cleaned and can block the dirty liquid on the surface to be cleaned from flowing to the rear side, so that it remains under the lower opening 12.

[0040] The steam distributor 17 receives high-temperature steam from the steam path (see below) and distributes it evenly to the surface to be cleaned. Specifically, the steam distributor 17 includes a steam input port (not shown) for receiving steam and a plurality of first steam output ports 171 for outputting steam. The first steam output ports 171 are arranged sequentially along a straight line extending horizontally to ensure that steam is applied as evenly as possible to the surface to be cleaned below the steam distributor 17.

[0041] The suction port 18 is located behind the first steam outlet 17. The flexible partition 16 can separate the lower opening 12 from the steam distributor 17, so that the lower opening 12 is retained below the first steam outlet 17 and the suction port 18. The suction port 18 is a narrow opening extending left and right. It can absorb nearby steam and liquid remaining on the surface to be cleaned below. The residual liquid includes a small amount of dirty liquid remaining on the surface to be cleaned and liquid condensed from the high-temperature steam on the surface to be cleaned.

[0042] Continue reading Figure 1-2 The vertical body 2 includes a handle 21 provided at the top and a housing 22 forming a skeleton portion of the vertical body 2 .

[0043] The handle 21 is fixedly connected to the top of the housing 22 and is configured to be suitable for a user to grasp. The user can use the handle 21 to hold the surface cleaning machine 10 with one hand and use it to push the cleaning base 1 of the surface cleaning machine 10 back and forth on the surface to be cleaned in the backward-tilted working position. The handle 21 is also provided with an operating portion 211 that is connected to the controller 30 for the user to control the operation of the surface cleaning machine 10. The specific form of the operating portion 211 is not limited to a button, a trigger, a trigger, a switch, etc. In other embodiments, the operating portion may also be provided elsewhere on the surface cleaning machine, such as on the top wall or side wall of the vertical body below the handle. The operating portion may also be a portable remote control or may be provided on a handheld terminal that can interact with the surface cleaning machine.

[0044] The housing 22 forms part of the outer contour of the stand 2 and also houses and supports the various operating components of the stand 2. These components include a supply system, a cleaning liquid supply tank 31 that stores and supplies cleaning liquid, and a steam generator 32. The cleaning liquid supply tank 31 is removably mounted on the housing 22, allowing users to easily add cleaning liquid. The steam generator 32 converts the cleaning liquid from the cleaning liquid supply tank 31 into high-temperature steam.

[0045] Combine Figure 4 The cleaning liquid supply tank 31 is fluidly connected to the cleaning liquid dispenser 15 on the cleaning base 1 and forms a cleaning liquid path (not shown in the figure) for the circulation of cleaning liquid. The cleaning liquid path is also provided with a first pump 33 that can be selectively started to selectively deliver cleaning liquid to the cleaning liquid dispenser 15 or block the fluid connection between the cleaning liquid supply tank 31 and the cleaning liquid dispenser 15; the cleaning liquid supply tank 31, the steam generator 32 and the steam distributor 17 on the cleaning base 1 are fluidly connected in sequence and form a steam path for providing steam to the outside. The steam path is also provided with a second pump 34 that is located between the cleaning liquid supply tank 31 and the steam generator 32 and can be selectively started to selectively deliver cleaning liquid to the steam generator 32 or block the fluid connection between the cleaning liquid supply tank 31 and the steam generator 32.

[0046] In other embodiments, the second pump can be eliminated and, instead, a three-way valve can be added downstream of the first pump. Specifically, the cleaning liquid supply tank, the second pump, and the three-way valve are sequentially fluidically connected. The three-way valve has a main inlet connected to the cleaning liquid supply tank, a first branch connected to the fluid distributor, and a second branch connected to the steam generator. Each of the first and second branches has independently controllable valves to selectively supply cleaning liquid to the fluid distributor and / or the steam generator. In this configuration, when cleaning liquid is required to be supplied through the cleaning liquid distributor, the valve in the first branch of the three-way valve is opened to connect the first pump and the fluid distributor. Similarly, when high-temperature steam is required to be supplied externally, the valve in the second branch of the three-way valve is opened to connect the first pump and the steam generator. It can be understood that the opening of the valves in the first and second branches can control the specific gravity of the cleaning liquid flowing to the cleaning liquid distributor and the steam generator, and can also selectively stop the supply of cleaning liquid to the cleaning liquid distributor or the steam generator.

[0047] The working parts arranged on the housing 22 also include a dirty liquid recovery tank 41 that can receive and store dirty liquid, and a suction motor 42 arranged on the upper side of the dirty liquid recovery tank 41. The suction nozzle 19, the dirty liquid recovery tank 41, and the suction motor 42 in the cleaning base 1 are fluidically connected in sequence and form a suction flow path for the suction flow. Among them, the suction port 18 is connected to the suction flow path between the suction nozzle 19 and the dirty liquid recovery tank 41 via a fluid pipeline. The suction motor 42 is used to form the suction flow. The dirty liquid recovery tank 41 is detachably mounted on the housing 22 to facilitate the user to dump the dirty liquid.

[0048] When the surface cleaning machine 10 is working, the first pump 33 is started, and part of the cleaning liquid in the cleaning liquid supply tank 31 reaches the cleaning liquid distributor 15 through the cleaning liquid path and is distributed to the brush roller 14 by the cleaning liquid distributor 15. The rotating brush roller 14 uses the cleaning liquid to clean the surface to be cleaned. The second pump 34 is started, and part of the cleaning liquid in the cleaning liquid supply tank 31 reaches the steam generator 32 and is converted into high-temperature steam. Thereafter, the high-temperature steam reaches the steam distributor 17 through the remaining steam path and is distributed to the surface to be cleaned by the steam distributor 17. The suction motor 42 is started and a suction flow is formed. The dirty liquid near the lower opening 12 and the sucked flow near the suction port 18 are carried into the suction flow path and are finally stored in the dirty liquid recovery device 24.

[0049] See Figure 5-7 The self-cleaning base station 20 of the surface cleaning system includes a shell capable of supporting the cleaning base 1, a groove 6 for accommodating the brush roller 14, and a steam transfer channel 7 for guiding the flow direction of steam output by the steam distributor 17.

[0050] The housing forms the outer contour of the self-cleaning base station 20 and includes a support base 51 for supporting the surface cleaning machine 10 and a pedestal 52 that protrudes upward from the support portion. The support base 51 is configured to accommodate at least the bottom portion of the cleaning base 1. The support base 51 includes a support surface 511 and an outer peripheral wall 512 located on the periphery of the support surface 511 and extending upward. The groove 6 is formed by a downward depression in the front portion of the support surface 511, and the groove 6 extends in the left and right directions. The outer peripheral wall 512 is used to confine the dirty liquid generated by the surface cleaning machine 10 when self-cleaning on the self-cleaning base station 20 within the self-cleaning base station 20.

[0051] The steam transfer channel 7 is fixedly mounted on the housing and includes a steam inlet end capable of docking with at least one first steam outlet 17, a plurality of second steam outlets 73 disposed in the groove 6, and a tubular portion 72 for establishing fluid communication between the steam inlet end and the plurality of second steam outlets 73. The steam inlet end is provided with a plurality of steam interfaces 71 arranged left and right and adapted to the first steam outlet 17, each of which is exposed from the support surface 511; the tubular portion 72 is fixedly mounted on the bottom of the support base 51; and the second steam outlets 73 are exposed from the bottom of the groove 6. The plurality of second steam outlets 73 are configured to be arranged along the length of the brush roller 14 so that the output high-temperature steam can cover the entire outer circumference of the brush roller 14.

[0052] Furthermore, when the surface cleaning machine 10 is supported on the self-cleaning base station 20, the multiple second steam outlets 73 are all oriented toward the brush roller 14 located in the groove 6 and are sequentially spaced apart along a straight line parallel to the rotational axis of the brush roller 14, so that the transferred high-temperature steam is evenly applied to the outer surface of the brush roller 14. The total number of first and second steam outlets provided in this embodiment is the same, both being four. In other embodiments, any number of second steam outlets may be arranged; the multiple second steam outlets may also be arranged in other manners along the length of the brush roller (e.g., spaced apart left and right and staggered front and back to form two rows of second steam outlets).

[0053] The base 52 is configured to support the rear portion of the upright body 2 of the surface cleaning machine 10. When the surface cleaning machine 10 is supported on the self-cleaning base 20, the cleaning base 1 is supported on the support surface 511 and the exposed portion of the brush roller 14 is accommodated in the groove 6; the first steam outlet 17 of the cleaning base 1 is connected to the steam interface 71 and is in fluid communication. The surface cleaning machine 10 provided in this embodiment is connected to the mains power supply via an electrical connection. In other embodiments in which a built-in battery is used as a power source, a charging terminal capable of connecting the corresponding surface cleaning machine to the mains power supply can also be configured on the base to charge the built-in battery.

[0054] Combine Figure 8The surface cleaning system is further provided with a position sensing element 8 disposed on the surface cleaning machine 10 and / or the self-cleaning base station 20 and connected to the controller 30 by signal. The position sensing element 8 is configured to be triggered when the surface cleaning machine 10 is properly supported on the self-cleaning base 20. The position sensing element 8 may be a Hall sensor disposed on the base or at the rear of the upright body 2 to identify the distance between the two aforementioned positions, a mechanical trigger sensor disposed on the base 52 or at the rear of the upright body 2 and triggered when the aforementioned positions are in contact, an infrared emitter and an infrared sensor disposed on the base 52 and at the rear of the upright body 2 and adapted thereto, etc.

[0055] The controller 30 simultaneously connects signals to the suction motor 42, steam generator 32, brush roller motor, first pump 33, and second pump 34. The controller 30 is configured to automatically execute a self-cleaning control sequence when the position sensing element 8 is triggered. This self-cleaning sequence includes a first step of cleaning the brush roller 14 with a cleaning solution and a second step of cleaning the brush roller 14 with high-temperature steam. The second cleaning step is performed after the first cleaning step is completed.

[0056] Specifically, when the controller 30 executes the first cleaning step, the suction motor 42, the brush roller motor, and the first pump 33 are all activated. A portion of the cleaning liquid in the cleaning liquid supply tank 31 is distributed via the steam distributor 17 onto the outer surface of the brush roller 14. The rotating brush roller 14 then uses this cleaning liquid to clean itself. Subsequently, the contaminated liquid in the groove 6 is carried by the suction flow into the suction flow path and ultimately stored in the contaminated liquid recovery tank 41. This step is used to clean solid waste adhering to the brush roller 14.

[0057] When the controller 30 performs the second cleaning step, the suction motor 42, the second pump 34 and the steam generator 32 are all started. Part of the cleaning liquid in the cleaning liquid supply tank 31 reaches the steam generator 32 and is converted into high-temperature steam. Afterwards, the high-temperature steam passes through the steam distributor 17, the steam interface 71 and the tube body part 72 in sequence, and the second steam output port 73 evenly distributes this part of the high-temperature steam to the outer surface of the brush roller 14. Finally, the high-temperature steam in the roller chamber 13 is carried by the suction flow into the suction flow path and is finally stored in the dirty liquid recovery tank 41. This step uses high-temperature steam to deeply clean the brush roller 14 to achieve a sterilization effect. In this step, the brush roller motor starts and controls the brush roller 14 to rotate intermittently to increase the continuous contact time between each local area of ​​the brush roller 14 and the high-temperature steam, thereby achieving a better sterilization effect.

[0058] Figure 9A schematic diagram of the electrical connections of a controller 30' of a surface cleaning system according to a second embodiment is provided. To avoid redundant description, the following only describes the differences of this embodiment's surface cleaning system: In this surface cleaning system, a manually triggered self-cleaning switch 9 replaces the automatically triggered position sensor. This self-cleaning switch 9 is signal-connected to the controller 30'. After the user places the surface cleaning machine on the self-cleaning base station, they selectively control the controller 30' to activate the self-cleaning control program via the self-cleaning switch 9. The self-cleaning switch 9 can be a control button located on the surface cleaning machine (e.g., on the handle) or a separate switch located on the self-cleaning base.

[0059] In addition, the steam generator of the surface cleaning system is normally open (i.e., the steam generator is in an activated state upon power supply, and therefore does not need to be connected to the controller 30' by signal). The surface cleaning machine selectively activates the second pump 34' to supply cleaning liquid to the steam generator, and then applies high-temperature steam to the surface to be cleaned or multiple steam interfaces.

[0060] The above embodiments are intended only to illustrate the technical concepts and features of this application. Their purpose is to enable those familiar with the art to understand the content of this application and implement it accordingly. They are not intended to limit the scope of protection of this application. Any equivalent changes or modifications made in accordance with the spirit of this application shall be included in the scope of protection of this application.

Claims

1. A surface cleaning system, comprising a surface cleaning machine and a self-cleaning base station capable of docking with the surface cleaning machine, the surface cleaning machine comprising a cleaning base, a suction motor, a cleaning liquid supply tank, a steam generator and a dirty liquid recovery tank, the cleaning base comprising a roller chamber, a brush roller located in the roller chamber and rotatable, a brush roller motor that drives the brush roller to rotate, a fluid distributor for distributing cleaning liquid to the brush roller, and at least one first steam output port for directly spraying steam generated by the steam generator onto the surface to be cleaned, the at least one first steam output port being located at the bottom of the cleaning base and behind the brush roller, the roller chamber, the dirty liquid recovery tank and the suction motor being fluidically connected in sequence; the surface cleaning machine further comprising a first pump for supplying cleaning liquid in the cleaning liquid supply tank to the fluid distributor, a second pump for supplying cleaning liquid in the cleaning liquid supply tank to the steam generator and a controller, the controller being control-connected to the suction motor, the brush roller motor, the first pump and the second pump, characterized in that The self-cleaning base station comprises: a housing capable of supporting the cleaning base and receiving at least a portion of the cleaning base; a recess located on a front portion of the housing and adapted to receive at least a portion of the brush roll during docking of the surface cleaning machine with the self-cleaning base station; and a steam transfer channel, arranged on the shell and comprising a steam inlet end and at least one second steam outlet; the steam inlet end is configured to be docked with the at least one first steam outlet so as to guide the steam outputted from the at least one first steam outlet to be outputted at the at least one second steam outlet; the at least one second steam outlet is located in the groove and is configured to spray steam toward the brush roller received in the groove; Wherein, the controller runs a self-cleaning control program during the docking of the surface cleaning machine with the self-cleaning base station, and the self-cleaning control program includes the steps of controlling the second pump to start and prohibiting the first pump to start, and the steps of controlling the first pump to start and prohibiting the second pump to start; wherein, in the self-cleaning control program, the time point of controlling the two pumps to start and prohibiting the first pump to start is later than the time point of controlling the first pump to start and prohibiting the second pump to start, and in the process of controlling the second pump to start and prohibiting the first pump to start, the brush roller motor is controlled to rotate intermittently.

2. The surface cleaning system according to claim 1, wherein The at least one second steam outlet is located at the bottom of the groove.

3. The surface cleaning system according to claim 1, wherein The total number of the second steam output ports is consistent with the total number of the first steam output ports.

4. The surface cleaning system according to claim 1, wherein: The at least one second steam outlet includes a plurality of second steam outlets, and the plurality of second steam outlets are arranged along the length direction of the brush roller.

5. The surface cleaning system according to claim 4, wherein: The plurality of second steam output ports are arranged along a horizontal straight line, which is parallel to the rotation axis of the brush roller at the groove.

6. The surface cleaning system of claim 1, wherein: The surface cleaning machine comprises an upright body with a handle on the upper portion, and the lower portion of the upright body is rotatably connected to the cleaning base.

7. The surface cleaning system according to claim 6, wherein: The cleaning liquid supply tank and the dirty liquid recovery tank are detachably arranged on the vertical machine body.

8. The surface cleaning system of claim 1, wherein: The surface cleaning system further comprises: a self-cleaning switch arranged on the self-cleaning base station and / or the surface cleaning machine, wherein the self-cleaning switch can be operated by a user to trigger the controller to execute the self-cleaning control program.

9. The surface cleaning system of claim 1, wherein: The surface cleaning system also includes a position sensing element configured on the self-cleaning base station and / or the surface cleaning machine. The position sensing element is connected to the controller signal and is configured to be triggered when the surface cleaning machine is correctly placed on the self-cleaning base station. The controller is constructed to automatically execute the self-cleaning control program after the position sensing element is triggered.

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