Ground cleaning appliance

Abstract

According to the technical scheme, the floor cleaning appliance comprises a cleaning system, a handheld part, a garbage collecting device, a water supply and return supply system and an electric power supply system. The cleaning system comprises a mopping mechanism capable of automatically cleaning the cleaning layer in the cleaning process. The mopping mechanism capable of automatically cleaning the cleaning layer comprises a cleaning roller assembly used for mopping the floor. The cleaning roller assembly comprises a cleaning roller; the cleaning system comprises a driving device for driving the cleaning roller to roll; the cleaning system further comprises a pre-cleaning system before mopping of the mopping mechanism. The garbage collecting device comprises a garbage can combination. In the cleaning process, garbage is swept into the garbage bin in a vacuum dust collection or sweeping mode, then mopping is conducted, in this way, damage to an interface to be cleaned is avoided to the maximum extent, meanwhile, the mopping structure can conduct self-cleaning in real time, dirt is avoided, and the sustainability of cleaning is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of ground cleaning appliance for ground cleaning. BACKGROUND

[0002] The conventional structure of the electric hand-held push-pull cleaning appliance on the market at present is that the front-end cleaning roller undertakes the cleaning task of sweeping and mopping, the weight of the whole cleaning head deforms the cleaning layer of the roller by compression, including extruding the garbage on the interface to be cleaned into the garbage collection device under the action of roller rotation and negative pressure, and the cleaning layer of the cleaning roller is cleaned through water supply and squeezing device, to achieve the effect of sweeping and mopping, and the roller is cleaned in real time, but in the case of hard particles on the ground, the garbage is rolled over the interface to be cleaned by the weight of the head, which is like using a hard object to draw on the interface to be cleaned. For some ground, such as wooden ground, there is a great possibility of scratching the interface to be cleaned.

[0003] Therefore, a cleaning appliance that can avoid scratching the ground is an urgent problem in the industry. SUMMARY

[0004] A ground cleaning appliance includes a cleaning system, a handheld portion, a garbage collection device, a water supply system, and a power supply system.

[0005] The cleaning system includes a mopping mechanism that can automatically clean the cleaning layer during the cleaning process.

[0006] The mopping mechanism that can automatically clean the cleaning layer includes a cleaning roller assembly for mopping;

[0007] The cleaning roller assembly includes a cleaning roller;

[0008] The cleaning roller includes a roller lining for support and a cleaning layer attached to the surface of the roller lining;

[0009] The cleaning layer is one layer or multiple layers;

[0010] The outermost layer of the cleaning layer is a water-absorbing material;

[0011] The outermost layer of the cleaning layer is a sponge;

[0012] The outermost layer of the cleaning layer is non-woven fabric or velvet.

[0013] The mopping mechanism includes a barrier strip that blocks garbage from passing through.

[0014] The mopping mechanism includes a water supply portion that provides cleaning liquid to the cleaning layer of the cleaning roller.

[0015] The mopping mechanism includes a squeezing portion that extrudes the cleaning layer on the surface of the cleaning roller.

[0016] The mopping mechanism covers a certain area on the surface of the cleaning layer of the cleaning roller from the water outlet of the water supply part to the extrusion part in the direction of rotation of the cleaning roller.

[0017] The cleaning system comprises a driving device for driving the cleaning roller to roll.

[0018] The cleaning system further comprises a pre-cleaning system before the mopping mechanism mops.

[0019] The pre-cleaning system is used to clean the ground before the cleaning appliance mops, and the conventional form comprises one or a combination of several of the following: side sweeping, side scraping, vacuum cleaning, and rolling brush cleaning.

[0020] The pre-cleaning system comprises a barrier strip that blocks garbage from passing through.

[0021] More preferably, the pre-cleaning system further comprises a side barrier strip that blocks and guides garbage into a garbage channel.

[0022] The vacuum cleaning mode comprises a vacuum cleaning fan, a dust collection channel, a garbage can combination, and a dust collection port.

[0023] The rolling brush cleaning mode comprises a rotating shaft with a cleaning brush, a driving motor, and a garbage can combination.

[0024] The rolling brush cleaning structure can also comprise a vacuum cleaning fan.

[0025] The cleaning brush is a brush, a rubber scraper, or a combination of a brush and a rubber scraper.

[0026] The hand-held part comprises a connecting rod, a handle for pushing and pulling, a control button and a display screen for controlling the operation of the cleaning appliance and displaying the status.

[0027] The garbage collection device comprises a garbage can combination and a garbage channel.

[0028] The water supply and return system comprises a clean water tank combination, a sewage tank combination, and a waterway combination.

[0029] The clean water tank combination comprises a water storage cavity, an air inlet structure for air intake, and a water replenishment structure.

[0030] The water replenishment structure is a clean water tank cover.

[0031] The water replenishment structure is a one-way valve.

[0032] The clean water tank combination comprises an air outlet structure.

[0033] The clean water tank combination comprises a water outlet structure.

[0034] The water purifying tank assembly comprises a water inlet structure.

[0035] The water outlet of the water purifying tank assembly comprises a filtering device.

[0036] The sewage tank assembly can be a component for containing sewage alone or a garbage can assembly connected with the vacuum cleaner.

[0037] The sewage tank assembly comprises a water storage tank and an exhaust structure for exhausting air.

[0038] The sewage tank assembly comprises a sewage inlet.

[0039] The exhaust structure of the sewage tank assembly is connected with the vacuum cleaner.

[0040] The sewage tank assembly comprises a sewage limiting device.

[0041] The power supply system comprises a power supply.

[0042] The power supply system comprises a charging structure for connecting with an external power source.

[0043] The waterway assembly refers to the sum of all pipes between the water purifying tank assembly and the sewage collecting container.

[0044] A one-way valve is arranged in the sewage outflow direction of the waterway assembly to prevent sewage backflow.

[0045] In the cleaning process, the vacuum cleaner or the sweeping device is used to sweep the garbage into the garbage bin, and then the floor is mopped, so that the damage to the cleaning interface is avoided to the greatest extent, and the mop structure can be self-cleaning in real time, so that the dirty mop is avoided and the sustainability of cleaning is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0046] Figure 1 is a 3D view of the ground cleaning appliance according to the present application;

[0047] Figure 2 is a sectional view of the ground cleaning appliance according to the present application;

[0048] Figure 3 is a view of the cleaning head of the ground cleaning appliance according to the present application;

[0049] Figure 4 is a 3D view of the bottom of the cleaning head of the ground cleaning appliance according to the present application;

[0050] Figure 5 is a 3D view of the cleaning roller assembly of the ground cleaning appliance according to the present application;

[0051] Figure 6This is a cross-sectional view of a cleaning roller assembly for a floor cleaning appliance according to this utility model;

[0052] Figure 7 This is a 3D sectional view of the main body of a floor cleaning tool according to this utility model;

[0053] Figure 8 This is an enlarged cross-sectional view of the cleaning head of a floor cleaning appliance according to this utility model;

[0054] Figure 9 This is a 3D view of a water circuit combination for a floor cleaning appliance according to this utility model;

[0055] Figure 10 This is a 3D view of a water tank assembly for a floor cleaning appliance according to this utility model;

[0056] Figure 11 This is a 3D view of an embodiment of the present invention: a floor cleaning appliance.

[0057] Figure 12 This is a cross-sectional view of an embodiment of the present invention: a floor cleaning appliance;

[0058] Figure 13 Utility Model: A 3D View of a Waterway Combination in a Floor Cleaning Appliance;

[0059] Figure 14 This is a cross-sectional enlarged view of the cleaning head in Embodiment 2 of this utility model of a floor cleaning appliance;

[0060] Figure 15 This is a 3D view of the location of the water tank assembly on the cleaning head of a floor cleaning appliance, which is an embodiment of this utility model.

[0061] Figure 16 This is a 3D view of a water tank combination, which is an embodiment of the present invention for a floor cleaning appliance.

[0062] Figure 17 This is a 3D magnified view of the handle portion of a floor cleaning tool according to this utility model;

[0063] Figure 18 This is an enlarged schematic diagram of the drain valve in the second embodiment of this utility model of a floor cleaning appliance. Detailed Implementation

[0064] Pushing the floor cleaning tool forward is the forward direction, while pulling the floor cleaning tool backward is the backward direction.

[0065] Implementation Plan 1:

[0066] like Figure 1 As shown, a floor cleaning appliance includes a cleaning head 1, a main body 2, and a handheld part 3.

[0067] As Figure 2 , 3 , 4 shows that the cleaning head 1 includes the bottom shell cleaning head shell frame composed of 111, upper shell 113, front shell 112, upper cover 114, bottom cover 118; the cleaning head 1 is provided with front wheel 151 and rear wheel 152 at the bottom of the cleaning head shell frame; the cleaning head 1 is provided with cleaning roller assembly 13 installed at the bottom of the cleaning head shell frame; the cleaning head shell frame is provided with detachable clean water tank combination fitting position 1131, sewage tank combination fitting position 1132; the side of the cleaning head is provided with electrode sheet 52 for charging.

[0068] The pre-cleaning system of the cleaning head 1 is a vacuum cleaning system 6, which can automatically clean the cleaning layer of the floor cleaning mechanism, which includes the cleaning roller assembly 13.

[0069] As Figure 4 shown, the bottom of the cleaning head shell frame is provided with a suction port 681 at the front end, and the suction port 681 is provided with a blocking strip 120, a side blocking strip 123 and a side blocking strip 124.

[0070] As Figure 4 shown, the bottom of the cleaning head shell frame is provided with a cleaning roller assembly 13, and the rear of the cleaning roller assembly 13 is provided with a rear blocking strip 122.

[0071] As Figure 9 shown, the cleaning head 1 is provided with a water pump 44, a pipeline 45 connected between the clean water tank combination and the water pump 44, and a pipeline 46 between the clean water tank combination and the nozzle.

[0072] As Figure 2 , 8 shown, the upper shell 113 is provided with a garbage channel 68 connected with the suction port 681 and connected with the hose 63.

[0073] As Figure 5 , 6 shown, the cleaning roller assembly 13 includes a cleaning roller composed of a cleaning roller liner 131 and a cleaning layer 132, a holding part 133 rotatable around the axis of the roller liner 131, and a roller drive assembly 134.

[0074] The cleaning layer is one layer or multiple layers;

[0075] The outermost layer of the cleaning layer is a water-absorbing material;

[0076] The outermost layer of the cleaning layer is a sponge;

[0077] The outermost layer of the cleaning layer is non-woven fabric or velvet.

[0078] As Figure 8 , 9As shown, the mopping mechanism includes a roller cleaning area 1112 that covers the surface of the roller.

[0079] like Figure 8 , 9 As shown, the mopping mechanism includes a squeezing part 1111 that squeezes the cleaning layer on the surface of the cleaning roller.

[0080] like Figure 7 As shown, the main body 2 is composed of a front shell 21 and a rear shell 22 to form a main body frame. Inside the main body frame, there is a drive power battery pack 51, a vacuum cleaner fan 62, and a detachable trash can assembly 61. The front shell 21 of the main body is provided with a structure 211 that is assembled with the handheld part.

[0081] like Figure 17 As shown, the handheld part 3 includes a connecting rod 36 for connecting the main body and the cleaning head, a handle 31 for pushing and pulling by hand, a control button 33 for controlling the operation of the cleaning appliance and displaying its status, a control button 34, and a display screen 35.

[0082] like Figure 2 , 4 As shown in Figures 7 and 8, the vacuum cleaning system 6 includes a vacuum cleaning fan 62, a trash can assembly 61 for storing trash, a suction port 681 for absorbing trash from the interface to be cleaned, a flexible hose 63 disposed behind the suction port, a trash channel 68, and a blocking strip 121 for preventing trash from passing through the suction port.

[0083] like Figure 7 As shown, the vacuum cleaner fan 62 is equipped with an air intake 621.

[0084] like Figure 7 As shown, the trash can assembly 61 includes an upper cover assembly 612 and a bottom shell 611;

[0085] The top cover assembly 612 includes a button 618 and a spring 619; the top cover assembly 612 is provided with a vent 6122 leading to the air intake 621 of the vacuum cleaner fan 62, an air inlet 6123, and a barrier structure 6124 to prevent garbage from flying directly into the air inlet 6123.

[0086] The bottom shell 611 is equipped with a garbage bin 6115 and a garbage channel 6114 for garbage to enter the garbage bin.

[0087] like Figure 2 , 7 As shown, when the vacuum cleaner fan 62 is working, the suction port 621 generates negative pressure, which guides the gas in the trash can assembly 61 through the air inlet 6123 and the vent 6122 to the suction port 621, enters the vacuum cleaner fan 621, and is discharged outside the cleaning equipment.

[0088] like Figure 3 ,9 As shown in Figures 1 and 10, the water supply and return system 4 includes a clean water tank assembly 41, a wastewater tank assembly 42, and a water circuit assembly.

[0089] The water purification tank assembly includes a water storage chamber 411, an air intake and exhaust structure 412 for air intake, and a water replenishment structure 413 for water replenishment.

[0090] The water storage chamber 411 is used to store cleaning fluid.

[0091] During the operation of the ground cleaning appliance, the air intake and exhaust structure 412 used for air intake provides cleaning fluid to the cleaning roller. At this time, the air intake and exhaust structure 412 balances the air pressure inside and outside the water storage chamber 411, and the cleaning fluid in the water storage chamber can smoothly provide cleaning fluid to the cleaning roller.

[0092] The air intake and exhaust structure 412 used for air intake can expel excess air caused by the cleaning liquid taking up space when the water tank assembly automatically replenishes the cleaning liquid.

[0093] The water replenishment structure is the water tank cover 413.

[0094] The wastewater tank assembly includes a water storage tank 421, a wastewater tank cover 422, and an exhaust structure 423 for venting.

[0095] like Figure 9 As shown: The drum cleaning zone 1112, output position 1118, water tank inlet 1114, and discharge hole 1115 are all located on the bottom shell 111. The output position 1118 is connected to the outlet of the clean water tank assembly 41, and the discharge hole 1115 is connected to the inlet of the sewage tank. When the water pump 44 starts working, the cleaning liquid enters the water pump 44 from the output position 1118 in the clean water tank 41 through the pipe 45, and then is output by the water pump 44 to the pipe 46, and then to the water tank inlet 1114. After the cleaning liquid is fully mixed with the cleaning drum in the drum cleaning zone 1112, it is discharged into the sewage tank assembly 42 through the discharge hole 1115.

[0096] Implementation Plan Two:

[0097] like Figure 11 As shown, a floor cleaning appliance includes a cleaning head 1, a main body 2, and a handheld part 3.

[0098] like Figure 4 , 15As shown, the cleaning head 1 includes a cleaning head shell frame composed of a bottom shell 111, an upper shell 113, a front shell 112, an upper cover 114, and a bottom cover 118; the cleaning head 1 is provided with front wheels 151 and rear wheels 152 at the bottom of the cleaning head shell frame; the cleaning head 1 is provided with a cleaning roller assembly 13 installed at the bottom of the cleaning head shell frame; the cleaning head shell frame is provided with a detachable clean water tank combination 43 fitting position 1133; the cleaning head side is provided with an electrode sheet 52 for charging.

[0099] As shown, Figure 4 the pre-cleaning system of the cleaning head 1 is a vacuum cleaning system 6, which can automatically clean the cleaning layer of the mopping mechanism including the cleaning roller assembly 13.

[0100] As shown, Figure 4 the front end of the bottom of the cleaning head shell frame is provided with a suction port 681, and the rear of the suction port 681 is provided with a blocking strip 120, a side blocking strip 123, and a side blocking strip 124.

[0101] As shown, Figure 4 the front end of the bottom of the cleaning head shell frame is provided with a cleaning roller assembly 13, and the rear of the cleaning roller assembly 13 is provided with a rear blocking strip 122.

[0102] As shown, Figure 13 the cleaning head 1 is internally provided with a water pump 44, a pipeline 45 connecting the clean water tank combination and the water pump 44, and a pipeline 46 between the clean water tank combination and the spray port.

[0103] As shown, Figure 12 , 14 the upper shell 113 is provided with a garbage channel 68 connected with the suction port 681 and connected with the hose 63.

[0104] As shown, Figure 5 , 6 the cleaning roller assembly 13 includes a cleaning roller inner liner 131, a cleaning layer 132, a holding part 133 rotatable around the axis of the roller inner liner 131, and a roller drive assembly 134.

[0105] As shown, Figure 13 , 14 the mopping mechanism that can automatically clean the cleaning layer includes a roller cleaning area covering the surface of the roller from the water spray port 1117 to the end 11121 of the cleaning roller fitting position of the bottom shell 111.

[0106] As shown, Figure 13 , 14 the mopping mechanism that can automatically clean the cleaning layer includes an extrusion part 1116 extruding the cleaning layer of the surface of the cleaning roller.

[0107] As shown, Figure 7As shown, the main body 2 is composed of a main body front shell 21 and a main body rear shell 22, and a main body frame is formed inside the main body front shell 21 and the main body rear shell 22. The main body frame is internally provided with a driving power supply battery pack 51 and a vacuum cleaner fan 62, and is provided with a detachable and installable garbage can assembly 61 embedded structure 25. The main body front shell 21 is provided with a structure 211 matched with the handheld part assembly.

[0108] As shown in FIG. 16, the handheld part 3 comprises a connecting rod 36 for connecting the main body and the cleaning head, a handle 31 for pushing and pulling by hand, control buttons 33 and 34 for controlling the operation of the cleaning appliance and displaying the state, and a display screen 35.

[0109] As shown in FIG. 16, the handheld part 3 comprises a connecting rod 36 for connecting the main body and the cleaning head, a handle 31 for pushing and pulling by hand, control buttons 33 and 34 for controlling the operation of the cleaning appliance and displaying the state, and a display screen 35. Figure 2 7 As shown in FIG. 16, the handheld part 3 comprises a connecting rod 36 for connecting the main body and the cleaning head, a handle 31 for pushing and pulling by hand, control buttons 33 and 34 for controlling the operation of the cleaning appliance and displaying the state, and a display screen 35.

[0110] As shown in FIG. 16, the handheld part 3 comprises a connecting rod 36 for connecting the main body and the cleaning head, a handle 31 for pushing and pulling by hand, control buttons 33 and 34 for controlling the operation of the cleaning appliance and displaying the state, and a display screen 35. Figure 7

[0111] As shown in FIG. 16, the handheld part 3 comprises a connecting rod 36 for connecting the main body and the cleaning head, a handle 31 for pushing and pulling by hand, control buttons 33 and 34 for controlling the operation of the cleaning appliance and displaying the state, and a display screen 35. Figure 7 As shown in FIG. 16, the handheld part 3 comprises a connecting rod 36 for connecting the main body and the cleaning head, a handle 31 for pushing and pulling by hand, control buttons 33 and 34 for controlling the operation of the cleaning appliance and displaying the state, and a display screen 35.

[0112] As shown in FIG. 16, the handheld part 3 comprises a connecting rod 36 for connecting the main body and the cleaning head, a handle 31 for pushing and pulling by hand, control buttons 33 and 34 for controlling the operation of the cleaning appliance and displaying the state, and a display screen 35.

[0113] As shown in FIG. 16, the handheld part 3 comprises a connecting rod 36 for connecting the main body and the cleaning head, a handle 31 for pushing and pulling by hand, control buttons 33 and 34 for controlling the operation of the cleaning appliance and displaying the state, and a display screen 35.

[0114] Figure 2 7 As shown in FIG. 16, the handheld part 3 comprises a connecting rod 36 for connecting the main body and the cleaning head, a handle 31 for pushing and pulling by hand, control buttons 33 and 34 for controlling the operation of the cleaning appliance and displaying the state, and a display screen 35.

[0115] As shown in FIG. 16, the handheld part 3 comprises a connecting rod 36 for connecting the main body and the cleaning head, a handle 31 for pushing and pulling by hand, control buttons 33 and 34 for controlling the operation of the cleaning appliance and displaying the state, and a display screen 35. Figure 14 18 As shown in FIG. 16, the handheld part 3 comprises a connecting rod 36 for connecting the main body and the cleaning head, a handle 31 for pushing and pulling by hand, control buttons 33 and 34 for controlling the operation of the cleaning appliance and displaying the state, and a display screen 35.

[0116] As shown in FIG. 16, the handheld part 3 comprises a connecting rod 36 for connecting the main body and the cleaning head, a handle 31 for pushing and pulling by hand, control buttons 33 and 34 for controlling the operation of the cleaning appliance and displaying the state, and a display screen 35. Figure 17 ​​​​​As shown, the hand-held part 3 contains a connecting rod 36 for connecting the main body 2, a handle 31 for pushing and pulling, control buttons 33 for controlling the working of the cleaning appliance and displaying the state, control buttons 34, and a display screen 35.

[0117] As shown in Figure 12 , 16 , the water supply system 4 contains a clean water tank assembly 43, a garbage can assembly 61, and a waterway assembly.

[0118] As shown in Figure 16 , the clean water tank assembly contains a water storage cavity 431, an air inlet and outlet structure 4321 for air inlet, and a water replenishing structure 432 for replenishing water.

[0119] As shown in Figure 16 , the clean water tank assembly further contains a valve for controlling water outlet of the water tank, which is composed of a fixing part 433, a spring 434, and a valve core 435.

[0120] The water storage cavity 431 is used for storing cleaning liquid.

[0121] The air inlet and outlet structure 4321 is used for balancing the air pressure inside and outside the water storage cavity 431 during the working of the floor cleaning appliance, so that the cleaning liquid in the water storage cavity can be smoothly provided to the cleaning roller.

[0122] When the clean water tank assembly 43 automatically replenishes cleaning liquid, the air that is redundant due to the space occupied by the cleaning liquid can be discharged.

[0123] As shown in Figure 12 , 14As shown: extrusion end 1116, water outlet 1117, exhaust port 1119 structure are arranged on the bottom shell 111, the output position 1118 is connected with the water outlet of the clean water tank 41, the exhaust port 1119 is connected with the garbage channel 68, the water pump 44 starts to work, the cleaning liquid is output from the output position 1118 of the clean water tank 41 through the pipeline 45 into the water pump 44, and then is output to the pipeline 46 by the water pump 44, and is divided into the water outlet 1117 through the back pipeline 11120, since the cleaning drum surface cleaning layer and the bottom shell arc structure 1113 maintain a certain length, the cleaning liquid can be fully and uniformly absorbed by the cleaning drum surface cleaning layer 132, the cleaning liquid is absorbed by the cleaning drum surface cleaning layer 132, after wiping the ground, the stains on the ground are attached or dissolved and mixed by the cleaning drum, the cleaning drum surface cleaning layer 132 is extruded at the extrusion end 1116, and the stains attached to the surface of the cleaning drum cleaning layer 132 are taken away, and the cleaning liquid attached and absorbed by the cleaning drum surface cleaning layer 132 is extruded and flows into the exhaust port 1119, since the garbage channel 68 generates negative pressure when the vacuum cleaner fan works, under the action of negative pressure, the cleaning liquid mixture gathered in the exhaust port 1119 enters the garbage channel 68 and enters the garbage can combination 61.

[0124] As Figure 18 As shown, a one-way valve 120 is arranged in front of the drain, and sewage can only pass through the valve into the garbage channel 68, and cannot flow in the opposite direction, solving the problem of sewage backflow.

[0125] The utility model discloses a cleaning drum surface self-cleaning, so that the surface of the cleaning drum and the interface to be cleaned can always meet the cleanliness required by the user, realize one-time full-automatic cleaning work with cleaning interface, avoid dirty mop phenomenon, and improve user experience and satisfaction.

[0126] The above only describes the preferred embodiment of the utility model, and does not limit the utility model, and any modification, equivalent replacement and improvement within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A floor cleaning appliance comprising a cleaning system, a hand-held portion, a waste collection device, a water supply system, an electrical power supply system, characterised in that: The cleaning system comprises a mopping mechanism capable of automatically cleaning the cleaning layer during the cleaning process. The cleaning system further comprises a pre-cleaning system before the mopping mechanism mops. The pre-cleaning system comprises a barrier strip to prevent garbage from passing through.

2. A floor cleaning appliance as claimed in claim 1, characterized in that: The mopping mechanism capable of automatically cleaning the cleaning layer comprises a barrier strip to prevent garbage from passing through.

3. A floor cleaning appliance as claimed in claim 1, characterized in that: The mopping mechanism capable of automatically cleaning the cleaning layer comprises a cleaning roller assembly for mopping. The cleaning roller assembly comprises a roller inner liner for support and a cleaning layer attached to the surface of the roller inner liner. The outermost layer of the cleaning layer is a water-absorbing material.

4. A floor cleaning appliance as claimed in claim 1, characterized in that: The mopping mechanism capable of automatically cleaning the cleaning layer comprises a water supply part for providing cleaning liquid to the cleaning layer of the cleaning roller.

5. A floor cleaning appliance as claimed in claim 1, characterized in that: The mopping mechanism capable of automatically cleaning the cleaning layer comprises a pressing part for pressing the cleaning layer on the surface of the cleaning roller.

6. A floor cleaning appliance as claimed in claim 1, characterized in that: The mopping mechanism capable of automatically cleaning the cleaning layer comprises a certain area covering the surface of the cleaning layer of the cleaning roller from the water supply part to the water outlet of the cleaning roller and the pressing part in the direction of rotation of the cleaning roller.

7. A floor cleaning appliance as claimed in claim 1, characterized in that: The pre-cleaning system further comprises a side barrier strip to prevent garbage from passing through and guide garbage into the garbage channel.

8. A floor cleaning appliance as claimed in claim 1, characterized in that: The cleaning system comprises a vacuum cleaning method, which comprises a vacuum cleaning fan, a dust collection channel, a garbage bin combination, and a dust collection port.

9. A floor cleaning appliance as claimed in claim 1, characterized in that: The water supply and return system comprises a clean water tank combination and a waterway combination. The clean water tank combination comprises a water storage cavity and an air inlet structure for air intake.

10. A floor cleaning appliance as claimed in claim 9, characterised in that: A one-way valve is arranged in the sewage outflow direction of the waterway combination to prevent sewage backflow.

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