权利要求：
1. A cleaning device, comprising a device body and a floor brush, wherein the floor brush is connected to one end of the device body; the device body is provided with a sewage storage box; a box body of the sewage storage box is configured to at least store and/or filter garbage suctioned by the floor brush.
2. The cleaning device of claim 1, wherein the floor brush is rotatably connected to the one end of the device body; the device body includes a first channel; and the sewage storage box is connected to the floor brush through the first channel.
3. The cleaning device of claim 2, wherein the box body of the sewage storage box is provided with a second channel, and the second channel is connected to the first channel.
4. The cleaning device of claim 3, wherein a partition plate is provided in the box body, the partition plate divides an internal space of the box body into an upper space and a lower space; the second channel extends from the lower space through the partition plate to the upper space; the partition plate is provided with a first hole group and an anti-backflow structure; the anti-backflow structure is configured to allow sewage in the upper space to flow into the lower space through the first hole group and is configured to prevent sewage in the lower space from flowing into the upper space through the anti-backflow structure.
5. The cleaning device of claim 4, wherein a first portion of an edge of the partition plate is in sealing contact with a sidewall of the box body.
6. The cleaning device of claim 4 or claim 5, wherein the anti-backflow structure includes a backflow prevention valve installed on the partition plate corresponding to the first hole group; the backflow prevention valve is in the lower space; and the backflow prevention valve communicates with the upper space through the first hole group.
7. The cleaning device of any one of claims 4-6, wherein the partition plate includes a cambered plate.
8. The cleaning device of any one of claims 4-7, wherein the partition plate is further provided with a fitting hole, and the second channel passes through the fitting hole.
9. The cleaning device of claim 8, wherein a side of the fitting hole is provided with an annular baffle, and the annular baffle extends towards the upper space.
10. The cleaning device of any one of claims 4-9, wherein a circumference of the partition plate is provided with a baffle wall, and the baffle wall at least extends into the upper space.
11. The cleaning device of any one of claims 4-10, wherein the partition plate is provided with a handle, and the handle is disposed in the upper space.
12. The cleaning device of any one of claims 4-11, wherein the one end of the box body has an opening, the opening is provided with a cover body, an adapter tube is provided in the box body, one end of the adapter tube abuts the cover body, another end of the adapter tube is connected to one end of the second channel, and a sidewall of the adapter tube is provided with an outlet.
13. The cleaning device of claim 12, wherein the cover body is provided with a gas outflow channel, an inlet of the gas outflow channel is connected to the upper space, and the inlet of the gas outflow channel is arranged in a different direction from the outlet of the adapter tube.
14. The cleaning device of claim 13, wherein an outlet of the gas outflow channel is provided with a filter member, the filter member is configured to filter out solid substances and/or liquid substances entrained in gas.
15. The cleaning device of claim 13 or claim 14, wherein the gas outflow channel is provided with a cyclone separation structure, and the cyclone separation structure is configured to filter out solid substances and/or liquid substances entrained in gas.
16. The cleaning device of any one of claims 13-15, wherein a bottom surface of the box body is provided with a sewage inlet; the cover body includes a main body; the sewage inlet extends upward to form a sewage pipe, an upper portion of the sewage pipe forms a sewage outlet; the main body of the cover body is provided with an air inlet, the air inlet communicates with a cyclone filter assembly; and a fluid entering from the sewage pipe is separated into mixed gas and mixed liquid at a sewage outlet, and the mixed gas enters the cyclone filter assembly through the air inlet for cyclone dust-gas separation.
17. The cleaning device of claim 16, wherein the main body is provided with an accommodating cavity, an upper end of the main body is provided with a plug-in port connected to the accommodating cavity, and the cyclone filter assembly is placed into the accommodating cavity through the plug-in port and is detachably connected to the main body.
18. The cleaning device of claim 17, wherein the cover body further includes a baffle formed by the main body extending downwardly, the baffle encloses a periphery of the sewage outlet, a channel for passing the mixed gas is formed between the baffle and the bottom surface, and the sewage outlet and the air inlet are located on two sides of the baffle.
19. The cleaning device of claim 18, wherein the sewage pipe includes: a pipe body, the pipe body being formed by the sewage inlet extending upwardly; and an adapter tube including a first pipeline, a transition pipe and a second pipeline connected in sequence, wherein the first pipeline is coaxially and detachably connected to the pipe body, the first pipeline is perpendicular to the second pipeline, and the sewage outlet is disposed on the second pipeline.
20. The cleaning device of claim 19, wherein a path that the mixed gas passes through before entering into the cyclone filter assembly is at least 2XL1 + L2, wherein L1 denotes a distance between a centerline of the second pipeline and the air inlet along a vertical direction, and L2 denotes distance between the centerline of the second pipeline and the baffle along the vertical direction.
21. The cleaning device of claim 19 or claim 20, wherein a ratio of the distance L1 between the centerline of the second pipeline and the air inlet along the vertical direction to the distance L2 between the centerline of the second pipeline and the baffle along the vertical direction is within 0.9-3.
22. The cleaning device of any one of claims 17-21, wherein the cyclone filter assembly includes: a communicating tube, wherein an upper end of the communicating tube is an air outlet; and a first clamping section disposed on the periphery of the communicating tube, wherein the periphery of the first clamping section is connected to a sidewall of the accommodating cavity, the first clamping section includes a spiral bottom plate, the spiral bottom plate is helically surrounded by the periphery of the communicating tube, the spiral bottom plate, the communicating tube, and the main body jointly form a cyclone channel, the air inlet communicates with the cyclone channel, and the mixed gas passes through the air inlet, the cyclone channel, and the communicating tube in order to achieve the cyclone dust-gas separation.
23. The cleaning device of claim 22, wherein an outer contour of a cross-section of the first clamping section gradually decreases from top to bottom, the accommodating cavity includes a first cavity and a second cavity arranged from top to bottom and connected, a size and a shape of the first cavity matches the first clamping section, and a cross-sectional area of the second cavity is less than a minimum cross-sectional area of the first cavity.
24. The cleaning device of any one of claims 17-23, wherein the cyclone filter assembly includes: a cyclone filtering mechanism, wherein the cyclone filtering mechanism is disposed within the accommodating cavity; and a soft rubber, wherein the soft rubber is connected to the cyclone filter mechanism and at least a portion of the soft rubber protrudes circumferentially from a periphery of the cyclone filter mechanism, and the soft rubber protrudes from the periphery of the cyclone filter mechanism abuts the upper end of the main body.
25. The cleaning device of claim 24, wherein the cover body further includes an upper cover, the upper cover covers an upper end of the cover body, the upper cover includes a first upper end surface, an included angle between the first upper end surface and a horizontal plane is a first preset included angle; the soft rubber includes a second upper end surface and a connecting portion, the second upper end surface is disposed at an upper end of the cyclone filtering mechanism, the connecting portion is fixed to the cyclone filtering mechanism and protrudes out of a periphery of the cyclone filtering mechanism, and an included angle between the bottom surface of the connecting portion and the horizontal plane is a second preset included angle; and the included angle between the upper end of the cover body and the horizontal plane is a third preset included angle, and when the upper end of the cover body abuts against the bottom surface of the connecting portion, the first upper end surface is in a same plane as the second upper end surface.
26. The cleaning device of any one of claims 6-25, wherein the backflow prevention valve includes a flexible valve body, a size of a cross-section of an outlet of the valve body along a second direction is greater than that along a third direction, and the second direction is perpendicular to the third direction.
27. The cleaning device of any one of claims 6-26, wherein the backflow prevention valve includes an elastic valve piece provided on a lower surface of the partition plate.
28. The cleaning device of any one of claims 4-27, wherein the partition plate is further provided with a second hole group, and gas in the lower space flows into the upper space through the second hole group.
29. The cleaning device of claim 28, wherein the first hole group and/or the second hole group are offset from a lowest point of the partition plate.
30. The cleaning device of any one of claims 13-25, wherein the cover body is provided with a water level probe group, and the water level probe group is configured to monitor a level of sewage in the box body.
31. The cleaning device of claim 30, wherein the water level probe group includes a first probe group and a second probe group, the first probe group and the second probe group extend towards the lower space, the second probe group extends into the upper space and is disposed above the first hole group, and a length of the first probe group is greater than a length of the second probe group.
32. The cleaning device of claim 31, wherein the first probe group extends into the lower space.
33. The cleaning device of any one of claims 13-25 and 30-32, wherein the cover body is further provided with two flow baffles, the two flow baffles extend into the upper space, the two flow baffles are arranged at interval along the periphery of the cover body, at least a portion of a region of a side edge of each of the two flow baffles are arranged at interval from the sidewall of the box body, and an outlet of the second channel is disposed between the two flow baffles.
34. The cleaning device of claim 33, wherein the cover body is further provided with a backing plate, the backing plate is disposed between the inlet of the gas outflow channel and the adapter tube, and the backing plate is connected between two flow baffles.
35. The cleaning device of claim 34, wherein a size of the backing plate along a length of the device body is less than a size of each of the two flow baffles along the length of the device body.
36. The cleaning device of any one of claims 1-35, wherein the floor brush is provided with a detachable cleaning fluid box.
37. The cleaning device of any one of claims 1-36, wherein the device body includes a sewage storage box supporting seat, and the sewage storage box is provided on the device body through the sewage storage box supporting seat.
38. The cleaning device of claim 37, wherein the sewage storage box supporting seat includes a groove, and at least a portion of the sewage storage box is accommodated within the groove.
39. The cleaning device of any one of claims 1-38, wherein the cleaning device further includes a handheld vacuum cleaner, the handheld vacuum cleaner is detachably installed at another end of the device body, one end of the handheld vacuum cleaner away from the device body is provided with a handle, and a battery is accommodated inside the handle.
40. The cleaning device of claim 39, wherein the handheld vacuum cleaner further includes a dust canister assembly and a motor, the dust canister assembly, the motor, and the handle are disposed in sequence along a first direction of the handheld vacuum cleaner, and widths each of which being a distance from the dust canister assembly to a position of a plurality of positions on the handheld vacuum cleaner along the first direction are substantially the same.
41. The cleaning device of claim 39 or claim 40, wherein the handheld vacuum cleaner includes an attachment member, the attachment member is detachably connected to the handheld vacuum cleaner, and the attachment member includes at least one of a de-mite brush, a flat brush, a bristle brush, a pet brush, or a water hose.
42. The cleaning device of any one of claims 39-41, wherein a shape of a combination of the device body and a sewage storage box is a column.
43. The cleaning device of claim 42, wherein areas of first cross-sections each of which corresponding to various positions of a main body portion of the combination along a lengthwise direction of the device body are substantially the same, and the first cross-section are cross-sections of the main body portion of the combination perpendicular to the lengthwise direction of the device body.
44. The cleaning device of claim 43, wherein areas of second cross-sections each of which corresponding to various positions of the main body portion of the handheld vacuum cleaner along the lengthwise direction of the device body are substantially the same, and the second cross-sections are cross-sections of the main body portion of the handheld vacuum cleaner perpendicular to the lengthwise direction of the device body.
45. The cleaning device of claim 44, wherein an area of a first cross-section and an area of a second cross-section are substantially the same.