CLEANING SYSTEM

Abstract

The cleaning system includes a cleaning device and a charging and support station. The cleaning device includes a cleaning base with a cleaning head, a housing, a squeegee (122), a wastewater tank, and a dirt suction channel (123) configured to carry the dirty water suctioned from the cleaning head. The charging station includes a housing and at least one liquid spray nozzle; the housing forms a receiving groove (210) for the cleaning head, the spray nozzle being located in said receiving groove (210). When the charging station supports the cleaning device, the spray nozzle is spaced away from the channel inlet, the channel inlet is oriented towards the cleaning head and is located on the squeegee side, near the charging station. Figure 5

Description

Title of the invention: CLEANING SYSTEM technical field

[0001] This disclosure relates to the technical field of cleaning devices, and more particularly to a cleaning system comprising a cleaning device and a charging station. Previous art

[0002] With the continuous development of society, people's living standards are constantly improving, and cleaning devices (such as sweepers, floor scrubbers, etc.) save time, reduce the effort of traditional manual cleaning, and are increasingly used by households. The cleaning device generally comprises a body and a cleaning base. The cleaning base includes a cleaning head for washing. Cleaning fluid is sprayed onto the cleaning roller by a water hose, and the cleaning head rotates at high speed to wash the floor.

[0003] Generally, the cleaning device must be used in conjunction with its corresponding charging station, the charging station being able to support and store the cleaning device. Consequently, users have increasingly high requirements regarding the performance of the charging station.

[0004] It should be noted that the information disclosed in the technical background section above is solely intended to enhance understanding of the context of this disclosure and may therefore include information that is not prior art known to ordinary persons in the trade. Purpose of the disclosure

[0005] The objective of this disclosure is to provide a cleaning system comprising a cleaning device and a charging station.

[0006] According to the invention, the cleaning system comprises:

[0007] a cleaning device; a charging station, said charging station being used to support said cleaning device;

[0008] The cleaning device comprises: a cleaning base, the cleaning base is equipped with a cleaning head, the cleaning base includes a base housing and a squeegee, the squeegee being installed in the base housing; a wastewater tank and a dirt suction channel, the dirt suction channel comprising a channel inlet and a channel outlet, the channel outlet being in communication with the wastewater tank, the dirt suction channel being configured to carry the dirty water sucked from the cleaning head;

[0009] the charging station comprises: a housing and at least one liquid spray nozzle; said housing forms a receiving groove to receive the cleaning head, said liquid spray nozzle being located in said receiving groove;

[0010] when the charging station supports the cleaning device, the liquid spray nozzle is spaced from the channel inlet, the channel inlet is oriented towards the cleaning head and is located on the side of the squeegee close to the charging station.

[0011] Optionally, when the charging station supports the cleaning device, the angle between the liquid spray nozzle and the squeegee, considered in the circumferential direction of the cleaning roller, is greater than or equal to 90°.

[0012] Optionally, considered in the circumferential direction of the cleaning roller, the angle between the liquid spray nozzle and the squeegee is from 120° to 170°.

[0013] Optionally, the housing forms a receiving space for a drying module disposed in said receiving space, the drying module being configured to provide an airflow.

[0014] Optionally, the housing is provided with an air outlet from the drying module and the drying module delivers an airflow through the air outlet to dry the cleaning head, the air outlet being located outside the receiving groove.

[0015] Optionally, the charging station is provided with several liquid spray nozzles, said spray nozzles being located in said receiving groove.

[0016] Optionally, the receiving groove is a roller groove, the cleaning head is a cleaning roller and said liquid spray nozzles are distributed at intervals along the axis of said roller groove, in order to spray liquid at several positions along the axis of the cleaning roller.

[0017] Optionally, the liquid spray nozzles are directed towards the cleaning roller.

[0018] Optionally, each of said liquid spray nozzles is equipped with a tip, the tip of each spray nozzle being able to spray cleaning liquid from the liquid spray nozzle.

[0019] Optionally, the charging station includes a heating module configured to provide heat to heat the cleaning fluid.

[0020] Optionally, the heating module includes a heating inlet and a heating outlet, said heating outlet being in communication with said at least one liquid spray nozzle.

[0021] Optionally, during the cleaning of the cleaning head, said heating module heats the cleaning liquid to a temperature of approximately 40°C to 60°C.

[0022] Optionally, the charging station includes a liquid pump used to pump liquid to said at least one liquid spray nozzle, so that the cleaning liquid is sprayed through said liquid spray nozzle.

[0023] Optionally, the liquid pump outlet is in communication with the heating module's heating inlet, the liquid pump delivering the cleaning fluid to the heating module's heating inlet.

[0024] According to one aspect of this disclosure, a charging station is provided comprising:

[0025] a heating module, said heating module being configured to provide heat in order to heat the cleaning liquid.

[0026] In one embodiment of this disclosure, said charging station is provided with a liquid inlet to be heated, said heating module being configured to be able to heat the cleaning liquid entering said liquid inlet to be heated.

[0027] In one embodiment of this disclosure, said charging station is provided with a liquid spray nozzle, through which the liquid can be sprayed onto the cleaning head of the cleaning device located on the charging station.

[0028] In one embodiment of this disclosure, said charging station is provided with a hot liquid outlet, the heated cleaning liquid being able to be discharged through said hot liquid outlet.

[0029] In one embodiment of this disclosure, said heating module includes a heating inlet and a heating outlet, said heating inlet being in communication with said heating liquid inlet, the heated cleaning liquid being discharged through said heating outlet.

[0030] In one embodiment of this disclosure, said charging station includes a liquid distribution pump (hereinafter: liquid pump), the inlet of said liquid pump being in communication with said inlet of liquid to be heated, the outlet of said liquid pump being in communication with the heating inlet of said heating module; or, the inlet of said liquid pump being in communication with the heating outlet of said heating module, the heated cleaning liquid being discharged through the outlet of said liquid pump.

[0031] In one embodiment of this disclosure, said heating module is used to heat the cleaning fluid in the cleaning device located on said charging station.

[0032] In one embodiment of this disclosure, said charging station is provided with a liquid inlet and a spray nozzle; the cleaning liquid in the cleaning device can enter said charging station by said liquid inlet after being heated by said heating module; the cleaning liquid entered into said charging station can be sprayed onto the cleaning head of the cleaning device located on said charging station through said spray nozzle.

[0033] In one embodiment of this disclosure, said charging station includes a liquid pump, said liquid pump being used to pump cleaning liquid from the cleaning device located on said charging station.

[0034] In one embodiment of this disclosure, said charging station forms a receiving space, said heating module being housed in said receiving space.

[0035] In one embodiment of this disclosure, said heating module is an electric heating module.

[0036] In one embodiment of this disclosure, said charging station further comprises:

[0037] a charging connector, said charging connector being configured to charge said cleaning equipment when said charging station supports the cleaning device;

[0038] a power adapter, said power adapter being connected to said charging connector and said electric heating module, in order to supply said charging connector and said electric heating module respectively.

[0039] According to another aspect of this disclosure, a cleaning system is provided, comprising:

[0040] a cleaning device;

[0041] a charging station according to any one of the preceding embodiments, said charging station being used to support said cleaning device.

[0042] In one embodiment of this disclosure, said cleaning device also includes:

[0043] a wastewater tank, said wastewater tank being configured to contain wastewater;

[0044] a dirt suction channel, said dirt suction channel comprising a channel inlet and a channel outlet, said channel outlet being in communication with said wastewater tank, said channel inlet being located near said cleaning roller, said dirt suction channel being configured to carry the wastewater sucked from the cleaning roller after cleaning the cleaning head.

[0045] The charging station provided by this disclosure is equipped with a heating module, the heating module being configured to provide heat to warm the cleaning fluid, which can improve the cleaning effect of the fluid cleaning on the cleaning head and improving the performance of the charging station.

[0046] The squeegee (or cleaning blade) and the channel inlet are spaced apart, which allows the cleaning head to be cleaned by the squeegee after leaving the channel inlet for a certain distance, thus maximizing the efficiency of the squeegee and improving the cleaning efficiency of dirt; this prevents the squeegee and the channel inlet from being placed in the same place, which would result in the cleaning head being cleaned by the squeegee when it contains little dirt.

[0047] It should be understood that the general description above and the detailed description that follows are only illustrative and explanatory, and do not limit this disclosure. Brief description of the figures

[0048] The accompanying figures are incorporated into and form part of this description; they illustrate implementations consistent with this disclosure and, together with the description, serve to explain the principles of the disclosure. It is understood that the figures described below are only a few implementations of this disclosure, provided by way of example.

[0049] Fig. 1 is a diagram illustrating the combination of the cleaning device and the charging station of the cleaning system according to an embodiment of this disclosure.

[0050] Fig. 2 is an exploded view illustrating the cleaning device and the charging station of the cleaning system according to an embodiment of this disclosure.

[0051] [Fig.3] is a diagram illustrating the combination of the cleaning base of the cleaning device and the charging station according to an embodiment of this disclosure.

[0052] [Fig.4] is a front view of the combination of the cleaning base of the cleaning device and the charging station according to an embodiment of this disclosure.

[0053] [Fig.5] is a sectional AA view of [Fig.4] according to an embodiment of this disclosure.

[0054] Fig. 6 is a diagram illustrating the internal structure of the cleaning base according to an embodiment of the present disclosure.

[0055] [Fig.7] is a partial enlarged view of [Fig.6] according to an embodiment of this disclosure.

[0056] Fig. 8 is a diagram illustrating the cleaning base according to an embodiment of the present disclosure.

[0057] Fig. 9 is a diagram illustrating the surface below the cleaning base according to an embodiment of the present disclosure.

[0058] [Fig. 10] is a partial enlarged view of [Fig. 9] according to an embodiment of this disclosure.

[0059] Fig. 11 is a diagram illustrating the charging station according to an embodiment of this disclosure.

[0060] [Fig. 12] is a partial enlarged view of [Fig. 11] according to an embodiment of this disclosure.

[0061] Fig. 13 is a top view of the charging station according to an embodiment of this disclosure.

[0062] Fig. 14 is a view of the second liquid spray assembly in the charging station according to an embodiment of the present disclosure.

[0063] Fig. 15 is a diagram illustrating the internal structure of the charging station according to an embodiment of the present disclosure.

[0064] [Fig. 16] is a partial enlarged view of [Fig. 15] according to an embodiment of this disclosure. Reference signs:

[0065] 10, cleaning device;

[0066] 110, body of the device;

[0067] 120, cleaning base;

[0068] 1201, base housing;

[0069] 121, cleaning roller;

[0070] 122, cleaning squeegee;

[0071] 123, dirt suction channel;

[0072] 124, liquid pump;

[0073] 1241, entry;

[0074] 1242, exit;

[0075] 125, liquid distribution controller;

[0076] 1251, controller liquid inlet;

[0077] 1252, first liquid outlet;

[0078] 1253, second liquid outlet;

[0079] 1261, first liquid spray inlet;

[0080] 1262, first liquid spray nozzle;

[0081] 127, outlet for liquid to be heated;

[0082] 128, loading interface;

[0083] 1291, first roll;

[0084] 1292, second roll;

[0085] 130, handle assembly;

[0086] 140, liquid reservoir;

[0087] 150, wastewater tank;

[0088] 20, charging station;

[0089] 200, crankcase;

[0090] 210, roller groove;

[0091] 220, second liquid spray assembly;

[0092] 221, second liquid spray nozzle;

[0093] 222, second liquid spray inlet;

[0094] 230, drying module;

[0095] 231, air outlet;

[0096] 232, drying air duct;

[0097] 240, liquid inlet to be heated;

[0098] 250, charging connector;

[0099] 260, heating module;

[0100] 2610, heating inlet;

[0101] 2620, heating outlet;

[0102] 270, power adapter. Detailed description of the implementation methods

[0103] Examples of embodiments will now be described in more detail with reference to the accompanying figures. However, the examples of embodiments can be implemented in various forms and should not be considered limited to the embodiments described herein; rather, these embodiments are provided to make this disclosure complete and exhaustive, and to fully convey the concept of embodiments to those skilled in the art. The same reference numbers in the figures indicate identical or similar structures, and their detailed description will therefore be omitted.

[0104] Although relative terms such as "upper" and "lower" are used in this description to describe the relative relationship of one component of a figure to another, these terms are used in this description only for convenience, e.g., based on the orientation of the examples shown in the accompanying figures. It is understood that if the device of the figure is reversed, the component described as "upper" will become a "lower" component. When a structure is "on" another structure, this can mean that the structure is formed entirely on the other structure, or that the structure is "directly" placed on the other structure, or that the structure is "indirectly" placed on the other structure via another structure.

[0105] The terms "a", "an", "the", "the", "said", "said" and "at least one" are used to indicate the presence of one or more elements / components / etc.; the terms "includes" and "has" are used to indicate open inclusion and mean that in addition to the listed elements / components / etc., other elements / components / etc. may exist; the terms "first", "second", etc. are used only for identification purposes and do not constitute a limitation on the number of their objects.

[0106] In the related technology, cleaning devices such as floor cleaners generally have a clean water tank that supplies cleaning fluid to the cleaning head during floor cleaning. Once use is complete, the cleaning device is typically placed back on a charging station that supports it and can perform self-cleaning functions, such as automatic washing of the cleaning head. The cleaning head can be, for example, a cleaning roller providing a strip-shaped cleaning surface, or a cleaning brush or disc providing a circular cleaning surface.

[0107] However, during automatic cleaning of the cleaning head by the charging station, the temperature of the cleaning liquid is relatively low, resulting in a relatively poor cleaning effect.

[0108] As illustrated in Figures 1 and 2, the cleaning system comprises a cleaning device 10 and a charging station 20, the cleaning device 10 being a portable floor cleaning device. It should be noted that the description of the cleaning device in this disclosure by way of a cleaning device 10 is only a preferred embodiment of this disclosure and does not limit the scope of protection of the cleaning device in this disclosure. For example, the cleaning device in this disclosure could be a portable cleaning device 10 with a handle, manually operated by the user, or a self-propelled floor cleaning robot with drive wheels, capable of controlling the advancement of the drive wheels and the cleaning of the floor by the cleaning roller according to a program stored on a medium embedded in the device or attached to the charging station.Another example is that the cleaning device in this disclosure could also be a floor washing machine, a broom, an electric mop, or other cleaning devices.

[0109] To resolve the aforementioned technical issue, the charging station 20 provided by this disclosure is equipped with a heating module. This heating module is configured to provide heat to warm the cleaning fluid. The cleaning fluid can enter the charging station 20 to be heated, or the heating module on the charging station 20 can directly heat the cleaning fluid in the cleaning device 10, thereby improving the cleaning effect of the fluid on the cleaning head and the overall performance of the charging station 20.

[0110] In what follows, embodiments of this disclosure will be explained in detail by taking as an example a cleaning system comprising a portable cleaning device 10 and a charging station, with a cleaning roller as the cleaning head.

[0111] As illustrated in Figures 1 and 2, the portable floor cleaning device 10 comprises a cleaning base 120 and a liquid supply assembly. The cleaning base 120 is equipped with a cleaning head, a heated liquid outlet 127, and a first liquid spray nozzle 1262 for cleaning the cleaning head. The liquid supply assembly is configured to supply liquid to at least one of the ports of the first liquid spray nozzle 1262 and the heated liquid outlet 127. The refill station 20 is equipped with a heated liquid inlet 240 for connecting to the heated liquid outlet 127, the refill station 20 being configured to heat the cleaning liquid entering the heated liquid inlet 240. The refill station 20 is equipped with a second liquid spray nozzle 221 for cleaning the cleaning head.The heated cleaning liquid can be sprayed from the second liquid spray nozzle 221, or from the first liquid spray nozzle 1262, or simultaneously from the first liquid spray nozzle 1262 and the second liquid spray nozzle 221.

[0112] More specifically, as illustrated in Figures 1 and 2, the portable floor cleaning device 10 also includes a device body 110, the cleaning base 120 being connected to one end of the device body 110; a handle assembly 130 is disposed on the device body 110, the handle assembly 130 being connected to the end of the device body 110 away from the cleaning base 120, to enable the user to manipulate and hold it, the user controlling the movement of the cleaning base 120 on the surface to be cleaned by holding the handle assembly 130, thus achieving the objective of cleaning the surface to be cleaned.

[0113] The cleaning base 120 is articulated to the body of the device 110, for example by a swivel joint, a ball joint connection, etc.; when the user holds the handle assembly 130 to control the movement of the cleaning base 120 on the surface to be cleaned, the articulation between the cleaning base 120 and the body of the device 110 allows adjustment of the relative angle between the body of the device 10 and the cleaning base 120, thus changing the operating angle and flexibly adjusting the cleaning posture to facilitate the cleaning operation.

[0114] As illustrated in Figures 3, 9 and 11, the cleaning base 120 comprises a base housing 1201, the base housing 1201 comprising an upper wall, side walls and a lower wall, the upper wall, side walls and lower wall together forming a containment space. The cleaning roller 121 is positioned on the lower wall of the base housing 1201, protruding from the lower wall, and the lower surface of the cleaning roller 121 is closer to the surface to be cleaned than the lower wall of the base housing 1201, so that when the cleaning roller 121 is in contact with the surface to be cleaned, there is a gap between the lower wall of the base housing 1201 and the surface to be cleaned, to prevent wear on the base housing 1201. The number of cleaning rollers 121 can be, for example, one, two or more, the cleaning rollers 121 being able to rotate at high speed to wash the floor.The 121 cleaning roller can be composed of a rotating shaft and a cleaning cloth wrapping the surface of the shaft; the shaft rotates at high speed under the effect of the drive to rotate the cleaning surface at high speed, thus achieving high-speed rotary friction cleaning of the surface to be cleaned; the cleaning cloth can be detachable from the shaft, facilitating replacement of the cleaning cloth and improving the maintenance economy of the 121 cleaning roller.

[0115] As illustrated in [Fig.9], the lower part of the cleaning base 120 is equipped with a first roller 1291, the first roller 1291 being arranged on the side of the lower part of the cleaning base 120 away from the cleaning roller 121, the axis of rotation of the first roller 1291 being able to be parallel to the axis of rotation of the cleaning roller 121. The installation of the first roller 1291 helps movement when the user handles the cleaning base 120 on the surface to be cleaned, thus avoiding friction between the housing of the base 1201 and the surface to be cleaned. At the same time, a second roller 1292 can be installed on the lower part of the cleaning base 120 near the cleaning roller 121, the second roller 1292 having a smaller diameter than the first roller 1291, serving to facilitate the movement of the cleaning base 120 and the rotation of the cleaning roller 121.Thanks to the second roller 1292, a support can be formed for the base housing 1201 near the cleaning roller 121, thus reducing resistance when moving the cleaning base 120 by the user.

[0116] More specifically, the liquid supply assembly includes a first liquid outlet and a second liquid outlet, the liquid supply assembly being configured to control the liquid outlet of at least one of the first liquid outlet and the second liquid outlet, i.e. only the first liquid outlet supplies liquid, or only the second liquid outlet supplies liquid, or the first liquid outlet and the second liquid outlet supply liquid simultaneously.

[0117] In certain embodiments, as illustrated in Figures 2 and 6, the liquid supply assembly comprises a liquid reservoir 140, a liquid pump 124 and a liquid distribution controller 125, the liquid reservoir 140 being to be fixed on the body of the device 110. The installation of the liquid reservoir 140 on the body of the device 110 makes it possible on the one hand to increase the relative height of the liquid reservoir 140, thus facilitating the supply of water, and on the other hand to avoid increasing the volume of the cleaning base 120 by installing it on the latter, while avoiding affecting the difficulty of rotation of the cleaning base 120 during operation / use.

[0118] As illustrated in Figures 6 and 7, the liquid pump 124 is installed in the containment space of the base housing 1201 of the cleaning base 120, for example fixed to the lower wall of the base housing 1201. The inlet 1241 of the liquid pump 124 can be connected to the liquid reservoir 140 by a flexible hose, in order to avoid the impact of the hoses connecting the liquid pump 124 and the liquid reservoir 140 on the rotation of the cleaning base 120 relative to the body of the device 110, while also preventing hose ruptures.

[0119] The liquid pump 124 is, for example, a peristaltic pump. Since the cleaning fluid is generally an aqueous solution containing cleaning solvents, which have a certain corrosive effect, using a peristaltic pump for the fluid supply means that the cleaning fluid only comes into contact with the pump tube, without touching the pump body. This prevents corrosion of the pump body and improves the reliability and service life of the liquid pump 124. Furthermore, the peristaltic pump offers precise flow, high stability, good sealing, and simple maintenance, without valves or seals. Of course, the liquid pump 124 can also be a vane pump, a centrifugal pump, an axial pump, etc., and this disclosure does not limit this.

[0120] The cleaning fluid in the fluid reservoir 140 may also be water or a solution of water and detergent, the present disclosure not limiting it, as long as it can achieve the cleaning effect on the cleaning roller 121.

[0121] As illustrated in Figures 6 and 7, the liquid distribution controller 125 is installed in the containment space of the base housing 1201 of the cleaning base 120, for example fixed to the lower wall of the base housing 1201, spaced away from the liquid pump 124. The liquid distribution controller 125 includes a liquid inlet of the controller 1251, a first liquid outlet 1252 and a second liquid outlet 1253, the liquid inlet of the controller 1251 being in communication with the outlet 1242 of the liquid pump 124; The liquid distribution controller 125 is configured to control the liquid output from the first liquid outlet 1252, or from the second liquid outlet 1253, or to control the simultaneous liquid output from the first liquid outlet 1252 and the second liquid outlet 1253 when it is in the open state; when the liquid distribution controller 125 is in closed state, neither the first liquid outlet 1252 nor the second liquid outlet 1253 releases liquid.

[0122] The liquid distribution controller 125 may include an electrically controlled liquid distributor, for example a solenoid valve, which can be used in combination with a controller to control the flow direction of the cleaning liquid, as well as the flow rate, flow velocity, etc. Of course, the liquid distribution controller 125 may also include a mechanical liquid distributor, for example a mechanical valve, and after placing the cleaning device 10 on the charging station 20, the user can control the flow direction of the mechanical distributor via a mechanical switch installed on the cleaning device 10, thus controlling the liquid output from the first liquid outlet 1252 and / or the second liquid outlet 1253.

[0123] As illustrated in [Fig. 8], a first liquid spray nozzle 1262 is installed on the cleaning base 120, the first liquid spray nozzle 1262 being connected to the first liquid outlet 1252 of the liquid distribution controller 125 by a pipe. The first liquid spray nozzle 1262 allows the cleaning liquid to be sprayed onto the cleaning roller 121 for cleaning.

[0124] As illustrated in Figures 9 and 10, a heating liquid outlet 127 is installed on the cleaning base 120, the heating liquid outlet 127 being able to be installed on the lower wall of the base housing 1201 of the cleaning base 120; when the cleaning device 10 is on the charging station 20, the heating liquid outlet 127 is directed towards the charging station 20. The heating liquid outlet 127 can be formed by a liquid outlet fitting installed on the lower wall of the base housing 1201, to facilitate subsequent connection with other lines or interfaces.

[0125] The liquid outlet to be heated 127 is connected to the second liquid outlet 1253 of the liquid distribution controller 125 by a pipe. When the liquid distribution controller 125 controls the liquid outlet of the second liquid outlet 1253, the cleaning liquid from the liquid tank 140 is drawn by the liquid pump 124, then passes through the second liquid outlet 1253 of the liquid distribution controller 125 to flow to the liquid outlet to be heated 127, thus allowing the cleaning liquid to flow to the refill station 20.

[0126] More specifically, as illustrated in Figures 11 to 16, the charging station 20 comprises a housing 200 and a heating module 260, the housing 200 forming an inlet for the liquid to be heated 240 and a receiving groove to accommodate the cleaning roller 121, namely the roller groove 210; when the charging station 20 supports the cleaning device 10, the liquid inlet to be heated 240 is in communication with the liquid outlet to be heated 127. The heating module 260 can be an electric heating module.

[0127] As illustrated in Figures 15 and 16, the heating module 260 includes a heating inlet 2610 and a heating outlet 2620, the heating inlet 2610 being connected to the liquid to be heated inlet 240 by a pipe, so that when the liquid distribution controller 125 controls the liquid outlet of the second liquid outlet 1253, the cleaning liquid from the liquid tank 140 is driven by the liquid pump 124, then passes through the liquid distribution controller 125 to the liquid to be heated outlet 127, enters the liquid to be heated inlet 240, and then enters the receiving cavity of the heating module 260; next, the heating module 260 is configured to heat the liquid entering the receiving cavity of the heating module 260 to a predefined temperature, the predefined temperature being for example in the range of 40°C to 60°C, for example 40°C, 45°C, 50°C, 55°C, 60°C, etc.This disclosure does not list them all here; by heating the cleaning fluid to a temperature of approximately 40°C to 60°C, the activity of the cleaning fluid can be increased, thus improving the cleaning effect of the cleaning fluid, while preventing excessively high temperatures from affecting the activity of the cleaning fluid; of course, the predefined temperature can also be lower than 40°C or higher than 60°C, this disclosure does not limit it.

[0128] As illustrated in [Fig.13], the housing 200 is equipped with a liquid spray nozzle for spraying liquid onto the cleaning roller 121, namely the second liquid spray nozzle 221, the second liquid spray nozzle 221 being connected to the heating outlet 2620 of the heating module 260 by a pipe, in order to spray the cleaning liquid heated to the temperature predefined by the heating module 260 onto the cleaning roller 121; the higher temperature cleaning liquid can improve the cleaning effect on the cleaning roller 121.

[0129] The second liquid spray nozzle 221 can be directed towards the cleaning roller 121, i.e. the second liquid spray nozzle 221 can spray the cleaning liquid directly onto the cleaning roller 121; or, the second liquid spray nozzle 221 can spray the cleaning liquid near the cleaning roller 121, causing the cleaning liquid to splash onto the cleaning roller 121 or to flow onto the cleaning roller 121 through other structures, the present disclosure not limiting it, as long as the cleaning of the cleaning roller 121 can be achieved by the cleaning liquid.

[0130] When the first liquid outlet 1252 and the second liquid outlet 1253 discharge liquid simultaneously, the first liquid spray nozzle 1262 and the second liquid spray nozzle 221 can simultaneously spray the cleaning liquid onto the cleaning roller 121, in order to improve the cleaning effect on the cleaning roller 121.

[0131] Thus, thanks to the combination of the liquid reservoir 140 and the liquid distribution controller 125 on the cleaning device 10, as well as the heating module 260 and the second liquid spray nozzle 221 on the charging station 20, the objective of spraying cleaning liquid at a predefined temperature onto the cleaning roller 121 is achieved; the use of the liquid reservoir 140 and the liquid distribution controller 125 makes it possible to achieve a two-way liquid supply from a single liquid reservoir 140, thus avoiding the installation of a separate liquid reservoir in the charging station 20, which avoids increasing the volume of the charging station 20 for the self-cleaning of the cleaning roller 121, thus reducing the cost of the charging station 20;At the same time, the user only needs to maintain one liquid reservoir on the cleaning device 10, which is more convenient for the user and improves the product's competitiveness in the market.

[0132] In some embodiments, the charging station 20 includes a liquid pump, the liquid pump being used to draw the cleaning liquid from the cleaning device 10 located on the charging station 20.

[0133] The inlet of the liquid pump is in communication with the liquid inlet on the charging station 20, i.e. it can be in communication with the inlet of the liquid to be heated 240, the outlet of the liquid pump is in communication with the heating inlet of the heating module 260; or, the inlet of the liquid pump is in communication with the heating outlet of the heating module 260, the heated cleaning liquid being discharged through the outlet of the liquid pump.

[0134] When the charging station contains a liquid pump, the liquid supply assembly includes: a liquid reservoir 140 and a first liquid pump, the inlet of the first liquid pump being in communication with the liquid reservoir 140; that is to say, the liquid pump in the charging station 20 can be considered as a second liquid pump.

[0135] As illustrated in [Fig. 8], a first liquid spray nozzle 1262 is installed on the cleaning base 120, the first liquid spray nozzle 1262 being connected to the outlet of the first liquid pump by a pipe. The first liquid spray nozzle 1262 allows the cleaning liquid to be sprayed onto the cleaning roller 121 for cleaning.

[0136] As illustrated in Figures 9 and 10, a heating liquid outlet 127 is installed on the cleaning base 120. This heating liquid outlet 127 can be installed on the lower wall of the base housing 1201 of the cleaning base 120. When the cleaning device 10 is on the charging station 20, the heating liquid outlet 127 is directed towards the charging station 20. The heating liquid outlet 127 can be formed by a liquid outlet fitting installed on the lower wall of the base housing 1201 to facilitate subsequent connection with other lines or interfaces. The outlet of the liquid reservoir 140 is connected to the heating liquid outlet 127.

[0137] A heating liquid inlet 240 is formed on the housing 200 of the charging station 20. When the charging station 20 supports the cleaning device 10, the heating liquid inlet 240 is in communication with the heating liquid outlet 127. The inlet of the second liquid pump in the charging station 20 is in communication with the heating liquid inlet 240, thus allowing the second liquid pump to draw the cleaning liquid from the liquid reservoir 140 into the charging station 20.

[0138] A pressure valve is installed between the liquid reservoir 140 and the liquid outlet to be heated 127; when the cleaning device 10 is not placed on the charging station 20, the pressure valve is in the closed position; when the cleaning device 10 is placed on the charging station 20, and the suction pressure supplied by the second liquid pump is less than a predefined pressure value, the pressure valve is in the closed position, and when the suction pressure supplied by the second liquid pump is greater than or equal to the predefined pressure value, the pressure valve is in the open position; the predefined pressure value can be set as required, this disclosure not limiting it.

[0139] As illustrated in Figures 11 to 16, the charging station 20 comprises a housing 200 and a heating module 260, the heating module 260 comprising a heating inlet 2610 and a heating outlet 2620, the heating inlet 2610 being connected to the liquid inlet to be heated 240 by a pipe, the second liquid pump being located between the heating inlet 2610 and the liquid inlet to be heated 240, when the second liquid pump draws the cleaning liquid from the liquid reservoir 140 to the heating module, the cleaning liquid enters the receiving cavity of the heating module 260; then, the heating module 260 is configured to heat the liquid entered into the receiving cavity of the heating module 260 to a predefined temperature, the predefined temperature being for example in the range of 40°C to 60°C.

[0140] The second liquid pump can also be located between the heater outlet 2620 and the second liquid spray nozzle 221, in order to open the pressure valve to draw the cleaning liquid from the liquid reservoir 140.

[0141] When the first liquid pump exits the liquid, the first liquid spray nozzle 1262 sprays the cleaning liquid onto the cleaning roller 121; when the second liquid pump exits the liquid, the second liquid spray nozzle 221 sprays the cleaning liquid onto the cleaning roller 121; when the first and second liquid pumps exit the liquid simultaneously, the first liquid spray nozzle 1262 and the second liquid spray nozzle 221 can simultaneously spray the cleaning liquid onto the cleaning roller 121, in order to improve the cleaning effect on the cleaning roller 121.

[0142] The first liquid pump and the second liquid pump are, for example, peristaltic pumps, since the cleaning liquid is generally an aqueous solution containing cleaning solvents, which has a certain corrosive effect, the use of peristaltic pumps for the liquid supply means that the cleaning liquid only comes into contact with the pump tube, without touching the pump body, thus avoiding corrosion of the pump body, improving the reliability and service life of the first liquid pump and the second liquid pump, while offering precise flow, high stability, good sealing, simple maintenance, without valves or seals; of course, the first liquid pump and the second liquid pump can also be vane pumps, centrifugal pumps, axial pumps, etc., the present disclosure does not limit them.

[0143] In certain embodiments, as illustrated in [Fig. 15], the housing 200 of the charging station 20 forms a receiving space, with the heating module 260 housed within this receiving space. The heating module 260 has a relatively small volume and occupies little space.The heating module 260 comprises a heating module housing, the heating inlet 2610 and the heating outlet 2620 being arranged on the heating module housing, the heating module housing 260 forming a receiving cavity, an electric heating wire or an electric heating column being arranged in the receiving cavity to heat the fluid circulating in the receiving cavity; a flow channel may also be arranged in the receiving cavity, the heating inlet 2610 and the heating outlet 2620 being arranged at the inlet and outlet of the flow channel, in order to guide the flow of the cleaning fluid into the receiving cavity and to improve the efficiency of heating the cleaning fluid.

[0144] In some embodiments, the cleaning fluid does not enter the heating module 260, the heating module 260 being disposed near the line carrying the cleaning fluid, thus heating the line carrying the cleaning fluid by producing heat, thereby achieving the objective of heating the cleaning fluid in the line.

[0145] In some embodiments, the cleaning liquid may also not enter the charging station 20, the heating module 260 being disposed on the charging station 20 near the support surface supporting the cleaning base 120; the pipe used to transport the cleaning liquid to the first liquid spray nozzle 1262 is disposed on the bottom of the cleaning base 120, i.e. that when the cleaning base 120 is on the charging station 20, the heating module 260 is adjacent to the pipe carrying the cleaning liquid, the heat produced by the heating module 260 being able to heat the cleaning liquid in the pipe, thus allowing the first liquid spray nozzle 1262 to spray cleaning liquid at a predefined temperature, thus improving the cleaning effect.

[0146] In this case, the charging station 20 may not be equipped with a heating liquid inlet 240 and a second liquid spray nozzle 221, thus reducing the production cost of the charging station 20.

[0147] Of course, the heated cleaning liquid in the cleaning base 120 can also enter the charging station 20 via the heating liquid inlet 240 on the charging station 20, and then be sprayed via the second liquid spray nozzle 221 on the charging station 20.

[0148] The heating module 260 may extend beyond the housing 200 of the charging station 20 to enhance the heating effect of the cleaning fluid in the cleaning base 120. The line carrying the cleaning fluid in the cleaning base 120 may also extend beyond the housing 1201 of the cleaning base 120 to enhance the heating effect of the cleaning fluid. Of course, the heating module 260 and the line carrying the cleaning fluid may also not extend beyond this; this disclosure does not limit them.

[0149] When the charging station 20 is equipped with a liquid pump, the liquid pump can draw the heated cleaning liquid into the charging station 20 via the liquid inlet 240, and then spray it through the second liquid spray nozzle 221; the liquid inlet can be the heating liquid inlet 240, or can be directly connected to the cleaning base 120 via the liquid pump inlet, in order to draw the heated cleaning liquid into the charging station 20.

[0150] The liquid pump inlet is in communication with the liquid inlet, the liquid pump outlet is in communication with the heating inlet of the module. heating 260; or, the inlet of the liquid pump is in communication with the heating output of the heating module 260, the heated cleaning liquid being discharged through the outlet of the liquid pump.

[0151] In some embodiments, as illustrated in Figures 6 to 8, a first liquid spraying assembly is installed on the cleaning base 120, the first liquid spraying assembly comprising a first liquid spray inlet 1261 and several first liquid spray nozzles 1262, the first liquid spray inlet 1261 being in communication with the several first liquid spray nozzles 1262, the cleaning liquid being routed to the first liquid spraying assembly via the first liquid spray inlet 1261, and then sprayed by the several first liquid spray nozzles 1262.The first several liquid spray nozzles 1262 are arranged successively along the axis of the cleaning roller 121, allowing the cleaning liquid to be sprayed at different positions along the axis of the cleaning roller 121, in order to improve the wetting effect of the cleaning roller 121.

[0152] In certain embodiments, as illustrated in Figures 13 and 14, a second liquid spraying assembly 220 is installed on the charging station 20, the second liquid spraying assembly 220 comprising a second liquid spray inlet 222 and several second liquid spray nozzles 221, the several second liquid spray nozzles 221 being arranged successively along the axis of the cleaning roller 121, allowing the cleaning liquid to be sprayed at different positions along the axis of the cleaning roller 121, in order to improve the wetting effect of the cleaning roller 121.The inlet of the second liquid spray assembly 220 is in communication with the heating outlet 2620 of the heating module 260 by a pipe, the cleaning liquid at the predefined temperature exiting the heating outlet 2620 of the heating module 260 flows to the second liquid spray assembly 220, then is sprayed onto the cleaning roller 121 at the predefined temperature by the several second liquid spray nozzles 221 of the second liquid spray assembly 220.

[0153] The second liquid spray nozzles 221 on the second liquid spray assembly 220 are formed by installing several nozzles; by adjusting the shape and size of the nozzle orifice, the coverage area and flow rate of the cleaning liquid sprayed by the second liquid spray nozzles 221 can be modified, in order to improve the spraying effect of the cleaning liquid on the cleaning roller 121; the design can be made according to actual requirements, the present disclosure not limiting it.

[0154] As illustrated in [Fig. 13], the multiple secondary liquid spray nozzles 221 are located in the roller groove 210. When the charging station 20 supports the cleaning device 10, the cleaning roller 121 of the cleaning device 10 is housed in the roller groove 210. The placement of the multiple secondary liquid spray nozzles 221 in the roller groove 210 allows the cleaning liquid sprayed by the secondary liquid spray nozzles 221 to be on the cleaning roller 121, thus preventing waste of cleaning liquid. Furthermore, since both the cleaning roller 121 and the multiple secondary liquid spray nozzles 221 are located in the roller groove 210, the space between the secondary liquid spray nozzles 221 and the cleaning roller 121 is relatively small, which improves the wetting effect of the cleaning roller 121.In addition, the blocking by the walls of the roller groove 210 prevents the cleaning liquid sprayed at high speed onto the cleaning roller 121 from splashing around the charging station 20, thus preventing the self-cleaning of the cleaning roller 121 from affecting the environmental hygiene around the charging station 20.

[0155] Of course, the multiple secondary liquid spray nozzles 221 can be located outside the roller groove 210, i.e., the multiple nozzles are placed outside the roller groove 210, with their spray direction oriented towards the cleaning roller 121 located in the roller groove 210, in order to improve the wetting effect of the cleaning roller 121 by the cleaning liquid sprayed by the secondary liquid spray nozzles 221. Alternatively, some secondary liquid spray nozzles 221 can be located in the roller groove 210 and others outside, forming a double-row spray nozzle arrangement, to further improve the wetting and cleaning effect of the cleaning roller 121.

[0156] In certain embodiments, as illustrated in Figures 9 to 12, the liquid outlet 127 and the liquid inlet 240 are fitted together. When the cleaning device 10 is placed back on the charging station 20 after use, the liquid outlet 127 and the liquid inlet 240 are fitted together, establishing communication between the liquid outlet 127 and the liquid inlet 240. The user does not need to perform any additional operations; it is the same operation as when a normal cleaning device 10 is placed back on the charging station 20 after use—simple and convenient.

[0157] In this case, the outlet of the liquid to be heated 127 can be located inside the inlet of the liquid to be heated 240. By placing the outlet of the liquid to be heated 127 inside the inlet of the liquid to be heated 240, when the outlet of the liquid to be heated 127 and the inlet of the liquid to be heated 240 fit together, this can improve the sealing of the connection between the liquid outlet 127 and the liquid inlet 240, thus preventing leaks at the connection point. Of course, the liquid inlet 240 can also be located inside the liquid outlet 127; this disclosure does not limit this possibility.

[0158] In addition, a sealing gasket is provided between the outlet of the liquid to be heated 127 and the inlet of the liquid to be heated 240, in order to form a leak-proof connection after the outlet of the liquid to be heated 127 and the inlet of the liquid to be heated 240 are joined. The sealing gasket may be installed on the outer surface of the outlet fitting forming the outlet of the liquid to be heated 127; or the sealing gasket may be installed on the inner wall of the orifice forming the inlet of the liquid to be heated 240; or sealing gaskets may be installed both on the outer surface of the outlet fitting forming the outlet of the liquid to be heated 127 and on the inner wall of the orifice forming the inlet of the liquid to be heated 240.The sealing gasket can be, for example, a rubber ring or similar material; the rubber ring can be installed in a removable manner, which facilitates its replacement when the sealing effect is not satisfactory, thus improving the sealing effect.

[0159] In addition, the liquid outlet 127 and the liquid inlet 240 can also be connected by magnetic attraction, with magnetic parts respectively installed on the liquid outlet 127 and the liquid inlet 240, using a strong magnet to tightly adhere the magnetic parts of the liquid outlet 127 and the liquid inlet 240, thus forming a leak-proof connection between the liquid outlet 127 and the liquid inlet 240, the magnetic attraction method facilitating connection and separation, with simple maintenance; this disclosure does not limit this, any variation in the method of connection between the liquid outlet 127 and the liquid inlet 240 is within the scope of protection of this disclosure.

[0160] In certain embodiments, complementary positioning structures can be arranged on the base housing 1201 of the cleaning device 10 and on the housing 200 of the charging station 20, in order to help the cleaning device 10 to be placed back in a predefined position on the charging station 20 after use, thus improving the reliability of the fit between the outlet of the liquid to be heated and the inlet of the liquid to be heated 240. The positioning structure can be, for example, a positioning recess arranged on the base housing 1201 and a positioning protrusion arranged on the charging station 20, achieving the relative positioning of the cleaning device 10 when it is placed back on the charging station 20 thanks to the combination of the positioning protrusion and the positioning recess; Several sets of positioning protrusions and positioning hollows can be arranged to further enhance the auxiliary positioning effect.

[0161] The positioning structure may also include the rollers at the bottom of the cleaning device 10 and the roller grooves on the charging station 20, allowing relative positioning between the cleaning device 10 and the charging station 20 by means of the rollers and roller grooves, improving the stability of the cleaning device 10 on the charging station 20 and thus ensuring auxiliary positioning.

[0162] In certain embodiments, the heating outlet 2620 of the heating module can be connected to the first liquid spray nozzle 1262, i.e. a hot water outlet can be disposed on the charging station 20, the heated cleaning liquid can be discharged through the hot water outlet, in order to spray the heated cleaning liquid through the first liquid spray nozzle 1262.

[0163] In this case, the heating output 2620 of the heating module can also be connected simultaneously to the first liquid spray nozzle 1262 and the second liquid spray nozzle 221, i.e., when the cleaning device 10 is placed back on the charging station 20 for self-cleaning after use, the cleaning liquid heated to the preset temperature can be sprayed simultaneously onto the cleaning roller 121 by the first liquid spray nozzle 1262 and the second liquid spray nozzle 221, greatly improving the wetting and cleaning effect of the cleaning roller 121.

[0164] When the heating output 2620 of the heating module is connected simultaneously to the first liquid spray nozzle 1262 and the second liquid spray nozzle 221, two heating outputs can be arranged on the heating module, one serving as a hot water output, the two heating outputs being respectively connected to the first liquid spray nozzle 1262 and the second liquid spray nozzle 221, or a single heating output 2620 can be arranged on the heating module in combination with a distributor to make the connection with the first liquid spray inlet 1261 and the second liquid spray nozzle 221.Non-return valves can be installed on the pipe connecting the heating outlet 2620 to the first liquid spray inlet 1261 and on the pipe connecting the heating outlet 2620 to the second liquid spray nozzle 221, in order to prevent backflow when the pipes are connected.

[0165] When the heating outlet 2620 is connected to the first liquid spray inlet 1261, a plug-in conduit connection structure can be arranged on the charging station 20 and the cleaning base 120, so that the Cleaning liquid can be sprayed from the first liquid spray nozzle 1262 into the cleaning base 120 from the charging station 20. The plug-in pipe connection structure can be identical to the plug-in structure of the heating liquid outlet 127 and the heating liquid inlet 240, which will not be repeated here.

[0166] In some embodiments, the cleaning device 10 also includes: a wastewater tank 150 and a dirt suction channel 123. The wastewater tank 150 is configured to contain the wastewater, the dirt suction channel 123 includes a channel inlet and a channel outlet, the channel outlet being connected to the wastewater tank 150, the channel inlet being oriented towards the cleaning roller 121 and located on the side of the squeegee (or cleaning blade) 122 near the charging station 20, the dirt suction channel 123 being configured to carry the wastewater suctioned from the cleaning roller 121. The wastewater tank 150 may be a negative pressure tank, drawing wastewater by negative pressure from the squeegee 122, the cleaning roller 121, and the surface to be cleaned to the wastewater tank 150 via the channel 123. Dirt suction.

[0167] When the cleaning device 10 performs self-cleaning on the charging station 20, the wastewater produced by the cleaning can be sucked into the wastewater tank 150 via the dirt suction channel 123.

[0168] In certain embodiments, as illustrated in Figures 4 and 5, the cleaning device 10 also includes: a squeegee 122. The squeegee 122 is disposed in the housing of the base 1201, the squeegee 122 extending along the axial direction of the cleaning roller 121, the squeegee 122 being configured to scrape the liquid on the cleaning roller 121, i.e. the wastewater on the cleaning roller 121. The direction of extension of the squeegee 122 can be parallel to the axis of the cleaning roller 121, in order to improve the effect of scraping the wastewater at different positions along the axis of the cleaning roller 121; The wastewater scraped by the squeegee 122 of the cleaning roller 121 and of the surface to be cleaned is sucked into the wastewater tank 150 via the dirt suction channel 123.

[0169] When the charging station 20 supports the cleaning device 10, in the circumferential direction of the cleaning roller 121, the angle between the second liquid spray nozzle 221 and the squeegee 122 is greater than or equal to a predefined angle, so that there is a space between the second liquid spray nozzle 221 and the squeegee 122; the predefined angle can be 90°, i.e. the angle between the second liquid spray nozzle 221 and the squeegee 122 can be for example 90°, 100°, 110°, 120°, 130°, 150°, 160°, 170°, 180°, etc., which are not all listed here. By ensuring that the angle between the second liquid spray nozzle 221 and the squeegee 122 is greater than or equal to 90° in the In the circumferential direction of the cleaning roller 121, there is sufficient space between the second liquid spray nozzle 221 and the squeegee 122, which allows the cleaning liquid to sufficiently wet the cleaning cloth on the cleaning roller 121, thus improving the self-cleaning effect of the cleaning roller 121; at the same time, there is also some space with the inlet of the dirt suction channel 123, preventing the cleaning liquid sprayed by the second liquid spray nozzle 221 from being directly sucked into the dirt suction channel 123.

[0170] In some embodiments, as illustrated in [Fig.15], the charging station 20 also includes: a drying module 230, the drying module 230 being configured to provide an airflow; the housing 200 of the charging station 20 is equipped with an air outlet 231 of the drying module 230, the drying module 230 expelling the airflow through the air outlet 231 via a drying air duct 232 to dry the cleaning roller 121; the airflow expelled by the drying module 230 via the air outlet 231 can be an airflow at ambient temperature or a heated airflow, the use of a heated airflow being more favorable for drying the cleaning roller 121.

[0171] The air outlet 231 is located outside the roller groove 210; after the cleaning roller 121 has finished its cleaning on the charging station 20, it must be dried. By placing the air outlet 231 outside the roller groove 210, this can improve the circulation of the airflow, thus improving the drying effect of the cleaning cloth on the cleaning roller 121, increasing the drying efficiency, reducing the electricity consumption required for drying and improving the energy efficiency ratio of the product; at the same time, this can prevent the cleaning liquid sprayed by the second liquid spray nozzle 221 from entering the air outlet 231.

[0172] Of course, the air outlet 231 of the drying module 230 can also be located inside the roller groove 210. When the second liquid spray nozzle 221 is located in the roller groove 210, the air outlet 231 is located on the side of the opening of the roller groove 210 relative to the second liquid spray nozzle 221, which can prevent the cleaning liquid sprayed by the second liquid spray nozzle 221 from entering the air outlet 231. In addition, air outlets 231 of the drying module 230 can also be arranged both outside and inside the roller groove 210, i.e., the drying module 230 has several air outlets 231.

[0173] In some embodiments, as illustrated in [Fig.9], a charging interface 128 is arranged on the cleaning device 10; as illustrated in [Fig.11], a charging connector 250 is arranged on the charging station 20. When the cleaning device 10 is placed back on the charging station 20 after use, the charging interface 128 of the cleaning device 10 fits into the charging connector 250 of the charging station 20, thus enabling the cleaning device 10 to be recharged via the charging station 20, i.e. the charging station 20 simultaneously recharges the cleaning device 10 and electrically heats the cleaning liquid.

[0174] As illustrated in [Fig.15], a power adapter 270 is installed in the charging station 20, the power adapter 270 being connected to the charging connector 250 and the heating module 260, in order to supply power to the charging connector 250 and the heating module 260 respectively. With a single power adapter 270, the control of the power supply to the heating module 260 and the charging of the cleaning device is achieved, without adding any additional components, thus avoiding increasing the volume of the charging station 20.

[0175] The second liquid spray nozzle 221 can be directed towards the cleaning roller 121, i.e. the second liquid spray nozzle 221 can spray the cleaning liquid directly onto the cleaning roller 121; or, the second liquid spray nozzle 221 can spray the cleaning liquid near the cleaning roller 121, causing the cleaning liquid to splash onto the cleaning roller 121 or to flow onto the cleaning roller 121 through other structures, the present disclosure not limiting it, as long as the cleaning of the cleaning roller 121 can be achieved by the cleaning liquid.

[0176] The preceding description and the embodiments just described are considered only as examples, the true scope of this disclosure being defined by the attached claims.

Claims

Demands

1. Cleaning system, characterized in that it comprises: a cleaning device (10); a charging station (20), said charging station being used to support said cleaning device; the cleaning device comprises: a cleaning base (120), the cleaning base being equipped with a cleaning head, the cleaning base comprising a base housing (1201) and a squeegee (122), the squeegee being installed in the base housing; a wastewater tank (150) and a dirt suction channel (123), the dirt suction channel comprising a channel inlet and a channel outlet, the channel outlet being in communication with the wastewater tank (150), the dirt suction channel being configured to carry the dirty water suctioned from the cleaning head; the charging station comprises: a housing (200) and at least one liquid spray nozzle (221);said housing forms a receiving groove (210) to receive the cleaning head, said liquid spray nozzle being located in said receiving groove; when the charging station supports the cleaning device, the liquid spray nozzle is spaced from the channel inlet, the channel inlet is oriented towards the cleaning head and is located on the side of the squeegee near the charging station.

2. Cleaning system according to claim 1, characterized in that: when the charging station (20) supports the cleaning device, the angle between the liquid spray nozzle (221) and the squeegee (122), considered in the circumferential direction of the cleaning roller (121), is greater than or equal to 90°.

3. Cleaning system according to claim 2, characterized in that: in the circumferential direction of the cleaning roller (121), the angle between the liquid spray nozzle (221) and the squeegee (122) is from 120° to 170°.

4. Cleaning system according to any one of claims 1 to 3, characterized in that: the housing (200) forms a receiving space for a drying module (230) disposed in said receiving space, the drying module being configured to provide an airflow.

5. Cleaning system according to claim 4, characterized in that: the housing (200) is provided with an air outlet (231) of the drying module (230) and the drying module delivers an airflow through the air outlet to dry the cleaning head, the air outlet being located outside the receiving groove (210).

6. Cleaning system according to any one of claims 1 to 5, characterized in that said charging station is provided with several liquid spray nozzles (221), said liquid spray nozzles being located in said receiving groove.

7. Cleaning system according to claim 6, characterized in that said receiving groove (210) is a roller groove, the cleaning head is a cleaning roller and said liquid spray nozzles are distributed at intervals along the axis of said roller groove, in order to spray liquid at several positions along the axis of the cleaning roller (121).

8. Cleaning system according to claim 7, characterized in that the liquid spray nozzles (1262, 221) are oriented towards the cleaning roller (121).

9. Cleaning system according to claim 8, characterized in that each of said liquid spray nozzles is equipped with a tip, the tip of each spray nozzle being able to spray cleaning liquid from the liquid spray nozzle.

10. Cleaning system according to any one of claims 1 to 9 characterized in that said charging station further comprises: a heating module (260) configured to provide heat to heat the cleaning liquid.

11. Cleaning system according to claim 10, characterized in that said heating module comprises a heating inlet (2610) and a heating outlet (2620), said heating outlet being in communication with said at least one liquid spray nozzle.

12. Cleaning system according to claim 11, characterized in that during the cleaning of the cleaning head, said heating module heats the cleaning liquid to a temperature of the order of 40°C to 60°C.

13. A cleaning system according to any one of claims 1 to 12, characterized in that said charging station further comprises: a liquid pump (124) used to pump liquid to said at least one liquid spray nozzle, so that the cleaning liquid is sprayed through said liquid spray nozzle.

14. Cleaning system according to claim 13 taken in combination with claim 10, characterized in that: the outlet of the liquid pump (1242) is in communication with the heating inlet (2610) of the heating module (260), the liquid pump delivering the cleaning liquid to the heating inlet of the heating module.

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