Cleaning device

Abstract

The utility model discloses a cleaning device. The cleaning device comprises a body assembly which comprises a body shell, and the outer contour of the bottom of the body shell is of a special-shaped structure; the floor brush assembly comprises a floor brush module and a rotating nozzle which is arranged at the top of the floor brush module and rotationally connected with the floor brush module, the outer contour shape of the top end of the rotating nozzle is matched with the outer contour of the bottom of the body shell, and the rotating nozzle is detachably connected with the bottom of the body shell. According to the cleaning device provided by the embodiment of the utility model, the body assembly and the floor brush assembly of the cleaning device can be freely assembled and disassembled, when the cleaning device needs to be maintained, all the assemblies of the cleaning device do not need to be disassembled, and only the assemblies with problems need to be independently disassembled for maintenance; and the flexibility of assembly disassembly and assembly is improved, so that the difficulty of repair and maintenance is reduced.

Description

Technical Field

[0001] The utility model relates to the field of cleaning equipment, and particularly relates to a cleaning device. Background Art

[0002] With the improvement of people's living standards, household cleaning devices such as floor washers that can help people reduce or even liberate the burden of housework are becoming more and more popular. Cleaning devices similar to floor washers usually include a floor brush assembly, a body assembly, a handle assembly, a clean water tank assembly, a sewage tank assembly, etc. In the prior art, the floor brush assembly and the body assembly are of an integral fixed structure. During the assembly process of the cleaning device, the floor brush assembly and the body assembly need to be assembled into an integral structure first before other components can be assembled. The flexibility of assembling or disassembling the cleaning device is poor, so the assembly and maintenance difficulties are relatively high. Summary of the Utility Model

[0003] The utility model provides a cleaning device to improve its flexibility during assembly or disassembly, thereby reducing the assembly and maintenance difficulties.

[0004] An embodiment of the utility model provides a cleaning device, which includes: a body assembly, including a body housing, the bottom outer contour of the body housing being a special-shaped structure; a floor brush assembly, the floor brush assembly including a floor brush module and a rotating nozzle arranged at the top of the floor brush module and rotatably connected to the floor brush module, the top outer contour shape of the rotating nozzle being adapted to the bottom outer contour of the body housing, and the rotating nozzle being detachably connected to the bottom of the body housing.

[0005] According to an embodiment of the first aspect of the utility model, the top end face of the rotating nozzle has a flat portion and a notch portion, the notch portion being located on one side of the flat portion and recessed relative to the flat portion towards the floor brush module. The body housing includes a front cover and a middle cover, the front cover and the middle cover being detachably connected. The bottom of the front cover extends outward relative to the bottom of the middle cover towards the floor brush assembly. The bottom of the front cover matches the notch portion and can be spliced with each other. The bottom of the middle cover matches the flat portion and can be spliced with each other.

[0006] According to the foregoing embodiment of the first aspect of the utility model, the bottom of the front cover is provided with a positioning structure, and the notch portion is provided with a positioning and cooperating structure. The positioning structure can be adaptively connected to the positioning and cooperating structure, so that the bottom of the body housing and the top end of the rotating nozzle are spliced in place.

[0007] According to the foregoing embodiment of the first aspect of the utility model, one of the positioning structure and the positioning and cooperating structure is a positioning groove, and the other is a positioning protrusion. The positioning protrusion is inserted into the positioning groove for adaptive connection.

[0008] According to the foregoing embodiment of the first aspect of the present utility model, the positioning and mating structure is the positioning protrusion, and the positioning protrusion extends along the contour of the entire notch portion.

[0009] According to the foregoing embodiment of the first aspect of the present utility model, the middle cover includes a bottom-side connecting portion, the bottom-side connecting portion has a bottom-side connecting surface extending parallel to the flush portion, the bottom-side connecting surface is provided with a first connecting structure, and the rotating nozzle is provided with a second connecting structure inside the flush portion, and the first connecting structure is detachably connected to the second connecting structure.

[0010] According to the foregoing embodiment of the first aspect of the present utility model, the body assembly further includes a first air duct, the first air duct is disposed on the bottom-side connecting surface and extends toward the floor brush assembly, and in a state where the rotating nozzle is connected to the bottom of the body housing, the first air duct can pass through the inside of the rotating nozzle and be connected to a second air duct of the floor brush module.

[0011] According to the foregoing embodiment of the first aspect of the present utility model, the body housing includes a first accommodation cavity for accommodating a control circuit board, the body assembly further includes a first electrical connection terminal, the first electrical connection terminal is electrically connected to the control circuit board through a first electrical connection wire, and the first electrical connection terminal is exposed at the bottom of the body housing.

[0012] According to the foregoing embodiment of the first aspect of the present utility model, the floor brush assembly further includes a second electrical connection terminal, the second electrical connection terminal is electrically connected to the floor brush module through a second electrical connection wire, the second electrical connection terminal is located inside the rotating nozzle, and the second electrical connection terminal can be electrically connected to the first electrical connection terminal.

[0013] According to the foregoing embodiment of the first aspect of the present utility model, in a state where the rotating nozzle is connected to the bottom of the body housing, the rotating nozzle and the bottom of the body housing jointly enclose a second accommodation cavity, and the second accommodation cavity can accommodate the first electrical connection terminal and the second electrical connection terminal.

[0014] According to the cleaning device of the embodiment of the present utility model, the body assembly of the cleaning device includes a body housing, the outer contour of the bottom of the body housing is a special-shaped structure, the floor brush assembly of the cleaning device includes a rotating nozzle, the shape of the outer contour of the top end of the rotating nozzle is adapted to the outer contour of the bottom of the body housing, the rotating nozzle and the bottom of the body housing can be mutually adapted and spliced and detachably connected, so as to realize the free assembly and disassembly between the body assembly and the floor brush assembly of the cleaning device. Therefore, in the assembly process of the above cleaning device, the floor brush assembly and the body assembly can be assembled separately, and then assembled with other functional components, further improving the assembly operation efficiency and reducing the overall production cost of the cleaning device. Since the detachable connection is also realized between the body assembly and the floor brush assembly, when the above cleaning device needs to be repaired, it is no longer necessary to disassemble all the components of the cleaning device, and only the problematic components need to be disassembled separately for repair, improving the flexibility of component disassembly and assembly, thereby reducing the difficulty of maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.

[0016] Figure 1 Stereoscopic schematic diagram of an embodiment of the cleaning device of the present utility model in a connected state;

[0017] Figure 2 Stereoscopic schematic diagram of an embodiment of the cleaning device of the present utility model in a disassembled state;

[0018] Figure 3 Partial area cross-sectional schematic diagram of an embodiment of the cleaning device of the present utility model in a connected state;

[0019] Figure 4 Stereoscopic schematic diagram of the floor brush assembly in an embodiment of the cleaning device of the present utility model;

[0020] Figure 5 Stereoscopic schematic diagram of the body assembly in an embodiment of the cleaning device of the present utility model;

[0021] Figure 6 Stereoscopic schematic diagram of the body housing in an embodiment of the cleaning device of the present utility model.

[0022] Description of the reference numerals:

[0023] 100 - Main body component; 110 - Main body housing; 111 - Middle cover; 1111 - Front - side connecting part; 1112 - Bottom - side connecting part; S1 - Bottom - side connecting surface; L1 - First connecting structure; 112 - Front cover; 120 - First air duct pipe;

[0024] 200 - Floor brush component; 210 - Floor brush module; 211 - Second air duct pipe; 220 - Rotating nozzle; 221 - Flush part; 222 - Notch part; L2 - Second connecting structure;

[0025] 310 - Positioning slot; 320 - Positioning protrusion;

[0026] R1 - First accommodation cavity; R2 - Second accommodation cavity.

[0027] The realization of the purpose, functional features and advantages of the present utility model will be further described in conjunction with the embodiments and with reference to the accompanying drawings. Detailed implementation manners

[0028] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0029] It should be noted that all the directional indications such as up, down, left, right, front, back... in the embodiments of the present utility model are only used to explain the relative positional relationship and movement conditions between components in a specific posture as shown in the accompanying drawings. If this specific posture changes, then the directional indications will also change accordingly.

[0030] In addition, the descriptions involving "first", "second", etc. in the present utility model are only for descriptive purposes, and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement them. When the combination of technical solutions appears to be contradictory or unable to be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present utility model.

[0031] In the related art, a cleaning device similar to a floor washer generally includes a floor brush assembly, a main body assembly, and other components, etc. The floor brush assembly and the main body assembly are of an integral fixed structure, and they cannot be modularly disassembled from each other. Other components can be spliced and assembled with this integral fixed structure. During the assembly process of the cleaning device in the related art, the floor brush assembly and the main body assembly need to be first assembled together into this integral fixed structure, and then the assembly of other components can be carried out. The flexibility of assembling or disassembling the cleaning device is relatively poor. The internal electrical connection wires of this integral fixed structure in the related art also extend from the main body assembly to the floor brush assembly all the time, and the electrical connection wires cannot be disconnected between the main body assembly and the floor brush assembly, making the later maintenance and disassembly of the cleaning device very inconvenient.

[0032] An embodiment of the present invention provides a cleaning device, which can realize the modular disassembly between the floor brush assembly and the main body assembly. In this embodiment, the cleaning device is taken as an example of a floor washer for illustration. In some other embodiments, the cleaning device can also be other types of cleaning devices that can clean the ground.

[0033] Figure 1 、 Figure 2 Figures 9(a) and 9(b) are respectively three-dimensional schematic diagrams of a connection state and a disassembled state of an embodiment of the cleaning device of the present invention. Figure 3 Figure 11 is a partial cross-sectional schematic diagram of an embodiment of the cleaning device of the present invention in a connection state. The cleaning device includes a main body assembly 100 and a floor brush assembly 200.

[0034] The main body assembly 100 includes a main body housing 110, and the bottom outer contour of the main body housing 110 is a special-shaped structure. In this embodiment, the special-shaped structure means that the contour shape is not a two-dimensional regular figure. The special-shaped structure of the bottom outer contour of the main body housing 110 is, for example, a combination or fusion shape of various different figures, or even a three-dimensional special-shaped structure with convex or protruding, concave or recessed structures.

[0035] The floor brush assembly 200 includes a floor brush module 210 and a rotating nozzle 220 provided on the top of the floor brush module 210 and rotatably connected to the floor brush module 210. The top outer contour shape of the rotating nozzle 220 is adapted to the bottom outer contour of the main body housing 110, and the rotating nozzle 220 is detachably connected to the bottom of the main body housing 110. When the cleaning device is in a normal working state, the floor brush assembly 200 can move along the ground and clean the ground. The cleaning methods for the ground can be rolling cleaning, rolling mopping, beating, rotating mopping and other cleaning methods, and optionally, it can also have cleaning methods such as dust adsorption, sewage adsorption, heating and drying.

[0036] According to the cleaning device of the embodiment of the present utility model, the body assembly 100 of the cleaning device includes a body housing 110. The outer contour of the bottom of the body housing 110 is a special-shaped structure. The floor brush assembly 200 of the cleaning device includes a rotating nozzle 220. The outer contour shape of the top end of the rotating nozzle 220 is adapted to the outer contour of the bottom of the body housing 110. The rotating nozzle 220 and the bottom of the body housing 110 can be mutually adapted and spliced and detachably connected, so as to realize the free assembly and disassembly between the body assembly 100 and the floor brush assembly 200 of the cleaning device. Therefore, during the assembly process of the above cleaning device, the floor brush assembly 200 and the body assembly 100 can be assembled separately, and then assembled with other functional components, further improving the assembly operation efficiency and reducing the overall production cost of the cleaning device. Since the detachable connection is also realized between the body assembly 100 and the floor brush assembly 200, when the above cleaning device needs to be repaired, it is no longer necessary to disassemble all the components of the cleaning device. Only the problematic components need to be disassembled separately for repair, improving the flexibility of component disassembly and assembly, and thus reducing the difficulty of maintenance and repair.

[0037] Figure 4 It is a three-dimensional schematic diagram of the floor brush assembly in an embodiment of the cleaning device of the present utility model. In some embodiments, the top end face of the rotating nozzle 220 has a flat portion 221 and a notch portion 222. The notch portion 222 is located on one side of the flat portion 221 and is recessed relative to the flat portion 221 in the direction of the floor brush module 210.

[0038] Figure 5 It is a three-dimensional schematic diagram of the body assembly in an embodiment of the cleaning device of the present utility model. Figure 6 It is a three-dimensional schematic diagram of the body housing in an embodiment of the cleaning device of the present utility model. In some embodiments, the body housing 110 includes a front cover 112 and a middle cover 111. The front cover 112 and the middle cover 111 are detachably connected. The bottom of the front cover 112 extends outward relative to the bottom of the middle cover 111 in the direction of the floor brush assembly 200. The bottom of the front cover 112 matches the notch portion 222 and can be mutually spliced. The bottom of the middle cover 111 matches the flat portion 221 and can be mutually spliced.

[0039] In this embodiment, the flush portion 221 has a substantially flush end face profile, while the notch portion 222 is recessed relative to the flush portion 221 in the direction of the floor brush module 210, so that the top end face of the rotating nozzle 220 has a special-shaped structure. In this embodiment, the notch portion 222 is recessed in an arc shape relative to the flush portion 221, so that the notch portion 222 has a three-dimensional arc bending structure. In some other embodiments, the notch portion 222 may be of other shapes. In this embodiment, the bottom of the front cover 112 extends outward relative to the bottom of the middle cover 111 in the direction of the floor brush assembly 200 and matches the notch portion 222. When the notch portion 222 has a three-dimensional arc bending structure, the portion of the bottom of the front cover 112 that extends outward relative to the floor brush assembly 200 also has a three-dimensional arc bending structure, so that the portion of the bottom of the front cover 112 that extends outward relative to the floor brush assembly 200 and the notch portion 222 are matched and spliced with each other.

[0040] In the above embodiment, the body assembly 100 includes a front cover 112 and a middle cover 111 that are detachably connected to each other, and can modularly produce the front cover 112 and the middle cover 111 respectively, so that the production and assembly efficiency of the body housing 110 is higher. In addition, the top end face of the rotating nozzle 220 has a special-shaped structure, and the bottom of the front cover 112 and the bottom of the middle cover 111 can be respectively adapted and spliced with different parts of the top end face of the rotating nozzle 220, thereby decomposing the splicing surface of the special-shaped structure and reducing the production difficulty of the special-shaped splicing surface at the bottom of the body housing 110.

[0041] Although not shown in the figure, in some embodiments, the cleaning device may further include other components such as a handle assembly, a clean water tank assembly, and a sewage tank assembly. The handle assembly can be detachably connected to the top of the body assembly 100, and the clean water tank assembly, the sewage tank assembly, etc. can be detachably connected to the rear side of the body assembly 100. In some embodiments, the body assembly 100 may include a rear cover, and the rear cover is detachably connected to the front cover 112 and / or the middle cover 111. Other components such as a clean water tank assembly and a sewage tank assembly can be accommodated between the rear cover and the middle cover 111.

[0042] Such as Figure 5 、 Figure 6 , in some embodiments, the bottom of the front cover 112 is provided with a positioning structure. Such as Figure 4 , in some embodiments, the notch portion 222 is provided with a positioning and mating structure, and the positioning structure can be adaptively connected to the positioning and mating structure, so that the bottom of the body housing 110 and the top end of the rotating nozzle 220 are spliced in place with each other.

[0043] By providing a positioning structure and a positioning and mating structure that cooperate with each other at the bottom of the front cover 112 and the notch portion 222, accurate positioning can be provided during the splicing of the body assembly 100 and the floor mopping assembly, ensuring the accuracy of the connection between the body assembly 100 and the floor mopping assembly.

[0044] In some embodiments, one of the positioning structure and the positioning mating structure is a positioning slot 310, and the other is a positioning protrusion 320. The positioning protrusion 320 is inserted into the positioning slot 310 for mating connection.

[0045] In some embodiments, the positioning slot 310 is provided at the bottom of the front cover 112, and the positioning protrusion 320 is provided at the notch portion 222. In some embodiments, the positioning slot 310 is provided at the notch portion 222, and the positioning protrusion 320 is provided at the bottom of the front cover 112. In other embodiments, the positioning structure and the positioning mating structure may be other matching positioning components. For example, they are respectively a hook and a slot mating structure; for another example, the positioning structure and the positioning mating structure are positioned and mated through a magnetic attraction structure.

[0046] In some embodiments, the positioning structure is integrally formed with the bottom of the front cover 112; in some embodiments, the positioning structure and the bottom of the front cover 112 are a split structure and are connected to each other. In some embodiments, the positioning mating structure is integrally formed with the notch portion 222; in some embodiments, the positioning mating structure and the notch portion 222 are a split structure and are connected to each other.

[0047] Such as Figure 4 , in this embodiment, the positioning mating structure is a positioning protrusion 320, and the positioning protrusion 320 extends along the entire contour of the notch portion 222.

[0048] In this embodiment, the positioning protrusion 320 is provided at the notch portion 222. Correspondingly, the positioning slot 310 is provided at the bottom of the front cover 112. Since the splicing surface of the notch portion 222 faces upward, setting the positioning protrusion 320 at the notch portion 222 can avoid the accumulation of environmental dust in the positioning slot compared to setting the positioning slot here. In this embodiment, the positioning protrusion 320 extends along the entire contour of the notch portion 222, so that it can provide complete positioning for the splicing between the notch portion 222 and the bottom of the front cover 112, thereby ensuring the accuracy of positioning.

[0049] In some embodiments, the body housing 110 includes a first accommodation cavity R1 for accommodating a control circuit board. Such as Figure 6 , in some embodiments, the middle cover 111 includes a front side connection portion 1111. Such as Figure 3 , the front side connection portion 1111 is detachably connected to the front cover 112 and jointly encloses the first accommodation cavity R1 after being connected to the front cover 112. The first accommodation cavity R1 is used to accommodate a control circuit board. In some embodiments, the body assembly 100 further includes a first electrical connection terminal, and the first electrical connection terminal is electrically connected to the control circuit board through a first electrical connection wire, and the first electrical connection terminal is exposed at the bottom of the body housing 110.

[0050] The control circuit board is a circuit board used to control various components of the cleaning device. In some embodiments, the first accommodating cavity R1 is also used to accommodate a power supply component, such as a battery, which is electrically connected to the control circuit board.

[0051] In some embodiments, the floor brush assembly 200 further includes a second electrical connection terminal, which is electrically connected to the floor brush module 210 through a second electrical connection line. The second electrical connection terminal is located inside the rotating nozzle 220 and can be electrically connected to the first electrical connection terminal.

[0052] The first electrical connection terminal and the second electrical connection terminal can be common sets of electrically connectable connector components. For example, one of the first electrical connection terminal and the second electrical connection terminal is a male electrical connector and the other is a female electrical connector, and the two can be plugged into each other to achieve physical and electrical connections.

[0053] In the related traditional technology, the main body component and the floor brush component are of an integrated structure, and the internal electrical connection line also extends from the main body component to the inside of the floor brush component all the time. The electrical connection line cannot be disconnected between the main body component and the floor brush component, making the later maintenance and disassembly of the cleaning device very inconvenient. According to the cleaning device of the present embodiment, the main body component 100 and the floor brush component 200 can be detachably connected, and the electrical connection between the two at the joint can be detachably realized through the first electrical connection terminal and the second electrical connection terminal. Thus, when any one of the main body component 100 and the floor brush component 200 needs to be repaired, maintained or replaced separately, the main body component 100 and the floor brush component 200 can be quickly disassembled and assembled, improving the convenience of repairing, maintaining or replacing the main body component 100 and the floor brush component 200 in the cleaning device.

[0054] As Figure 3 , in some embodiments, in a state where the rotating nozzle 220 is connected to the bottom of the main body housing 110, the rotating nozzle 220 and the bottom of the main body housing 110 jointly enclose a second accommodating cavity R2, and the second accommodating cavity R2 can accommodate the first electrical connection terminal and the second electrical connection terminal.

[0055] When assembling the main body component 100 and the floor brush component 200, first connect the first electrical connection terminal and the second electrical connection terminal, then store the first electrical connection terminal and the second electrical connection terminal in the second accommodating cavity R2, and then splice and connect the bottom of the main body housing 110 and the rotating nozzle 220 to realize the assembly of the main body component 100 and the floor brush component 200.

[0056] As Figure 6, in some embodiments, the middle cover 111 includes a bottom connection portion 1112. The bottom connection portion 1112 has a bottom connection surface S1 extending parallel to the flush portion 221. The bottom connection surface S1 is provided with a first connection structure L1. The rotating nozzle 220 is provided with a second connection structure L2 on the inner side of the flush portion 221. The first connection structure L1 and the second connection structure L2 are detachably connected.

[0057] In this embodiment, the first connection structure L1 is a connection hole provided on the bottom connection surface S1, and the second connection structure L2 is a hollow connection column provided on the inner side of the flush portion 221 and fixed to the side wall of the rotating nozzle 220. The hollow connection column corresponds to the position of the connection hole. After the bottom of the main body housing 110 and the top end surface of the rotating nozzle 220 are positioned and spliced, a connecting member such as a screw passes through the hollow connection column and the connection hole to connect, realizing the detachable connection between the main body assembly 100 and the floor mopping assembly.

[0058] The form of the detachable connection between the first connection structure L1 and the second connection structure L2 is not limited to the above example. In some other embodiments, the first connection structure L1 and the second connection structure L2 may be other structures. For example, the first connection structure L1 and the second connection structure L2 are detachably connected to each other through a snap structure.

[0059] Such as Figure 2 , Figure 3 , Figure 5 , in some embodiments, the main body assembly 100 further includes a first air duct 120. The first air duct 120 is provided on the bottom connection surface S1 and extends toward the floor brush assembly 200. In a state where the rotating nozzle 220 is connected to the bottom of the main body housing 110, the first air duct 120 can pass through the inside of the rotating nozzle 220 and be connected to the second air duct 211 of the floor brush module 210. In a state where the rotating nozzle 220 is connected to the bottom of the main body housing 110, the first air duct 120 and the second air duct 211 are connected to realize the air path communication between the main body assembly 100 and the floor brush assembly 200.

[0060] The above are only the preferred embodiments of the present invention, and do not limit the patent scope of the present invention. Any equivalent structural transformation made under the concept of the present invention by using the content of the specification and drawings of the present invention, or directly / indirectly applied in other related technical fields, is included in the patent protection scope of the present invention.

Claims

1. A cleaning device, characterized in that: include: The body assembly comprises a body shell, wherein the bottom outer contour of the body shell is a special-shaped structure; A floor brush assembly, the floor brush assembly includes a floor brush module and a rotating nozzle arranged on the top of the floor brush module and rotatably connected to the floor brush module, the top outer contour of the rotating nozzle is adapted to the bottom outer contour of the main body shell, and the rotating nozzle is detachably connected to the bottom of the main body shell.

2. The cleaning device according to claim 1, characterized in that The top end surface of the rotating nozzle has a flush portion and a notch portion, the notch portion is located on one side of the flush portion and is recessed relative to the flush portion toward the direction of the floor brush module, the main body shell includes a front cover and a middle cover, the front cover is detachably connected to the middle cover, the bottom of the front cover extends outward toward the direction of the floor brush assembly relative to the bottom of the middle cover, the bottom of the front cover matches the notch portion and can be spliced ​​with each other, and the bottom of the middle cover matches the flush portion and can be spliced ​​with each other.

3. The cleaning device according to claim 2, characterized in that The bottom of the front cover is provided with a positioning structure, and the notch portion is provided with a positioning matching structure, and the positioning structure can be adaptively connected with the positioning matching structure, so that the bottom of the main body shell and the top of the rotating nozzle are spliced ​​into place.

4. The cleaning device according to claim 3, characterized in that One of the positioning structure and the positioning matching structure is a positioning slot, and the other is a positioning protrusion. The positioning protrusion is inserted into the positioning slot to be adapted and connected with each other.

5. The cleaning device according to claim 4, characterized in that The positioning matching structure is the positioning protrusion, and the positioning protrusion extends along the contour of the entire notch portion.

6. The cleaning device according to claim 2, characterized in that: The middle cover includes a bottom connecting portion, which has a bottom connecting surface extending parallel to the flush portion, and the bottom connecting surface is provided with a first connecting structure. The rotating nozzle is provided with a second connecting structure on the inner side of the flush portion, and the first connecting structure is detachably connected to the second connecting structure.

7. The cleaning device according to claim 6, characterized in that The main body assembly further includes a first air duct, which is disposed on the bottom connecting surface and extends toward the floor brush assembly. When the rotating nozzle is connected to the bottom of the main body shell, the first air duct pipe can pass through the inner side of the rotating nozzle and be connected to the second air duct pipe of the floor brush module.

8. The cleaning device according to claim 1, characterized in that The main body shell includes a first accommodating cavity for accommodating a control circuit board. The main body component also includes a first electrical connection terminal, which is electrically connected to the control circuit board through a first electrical connection line. The first electrical connection terminal is exposed at the bottom of the main body shell.

9. The cleaning device according to claim 8, characterized in that The floor brush assembly also includes a second electrical connection terminal, which is electrically connected to the floor brush module via a second electrical connection line. The second electrical connection terminal is located on the inner side of the rotating nozzle, and the second electrical connection terminal can be electrically connected to the first electrical connection terminal.

10. The cleaning device according to claim 9, characterized in that When the rotating nozzle is connected to the bottom of the main body shell, the rotating nozzle and the bottom of the main body shell together enclose a second accommodating cavity, and the second accommodating cavity can accommodate the first electrical connection terminal and the second electrical connection terminal.

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