Surface cleaning apparatus

Abstract

The present disclosure relates to a surface cleaning apparatus. The surface cleaning apparatus comprises: a body (3); the cleaning part is mounted on the machine body (3); and a water tank (5) detachably mounted to the body (3). The water tank (5) comprises a tank body and a cover body (51), the tank body comprises a peripheral wall, a bottom wall and a partition plate (57), the peripheral wall and the bottom wall define a container with the top open and the bottom closed, and the partition plate (57) is arranged in the container to divide the container into a first tank (52) and a second tank (54) which are isolated from each other and transversely arranged side by side; a cover body (51) is detachably mounted to the box body and is configured to cover the top opening in a sealed manner.

Description

Technical Field

[0001] The present disclosure relates to the field of surface cleaning, and more particularly to a surface cleaning apparatus. Background Art

[0002] Surface cleaning devices such as sweeping and mopping robots, floor scrubbers, or handheld electric mops are widely used for cleaning floors, desktops, or other surfaces. When performing surface cleaning operations, the portability of the surface cleaning device is important to the user. Taking a handheld electric mop as an example, the user needs to move the handheld electric mop around the area to be cleaned to perform the cleaning operation. This means that the miniaturization of the space occupied by the handheld electric mop and the lightweight of the handheld electric mop are important for user convenience. In addition, in some application scenarios, it is also expected to provide some additional functions on the surface cleaning device, such as adding a detergent to improve the cleaning performance. How to achieve functional expansion of the cleaning device while ensuring the miniaturization of the floor cleaning device puts higher requirements on the design of the floor cleaning device. Utility Model Content

[0003] It is an object of the present disclosure to provide a surface cleaning apparatus that aims to solve one or more of the above-mentioned problems as well as other potential problems.

[0004] One aspect of the present disclosure provides a surface cleaning device. The surface cleaning device comprises: a body; a cleaning component mounted to the body; and a water tank detachably mounted to the body, the water tank comprising: a box body, comprising an outer peripheral wall, a bottom wall and a partition plate, the outer peripheral wall and the bottom wall enclose a container with a top opening at the top and a closed bottom, the partition plate is arranged in the container to separate the container into a first box and a second box that are isolated from each other and arranged side by side laterally; and a cover body detachably mounted to the box body and configured to cover the top opening in a sealed manner.

[0005] According to the surface cleaning device of the present disclosure, the volume occupied by the water tank in the entire surface cleaning device is further reduced, and the cost of the water tank is reduced.

[0006] In some embodiments, the fuselage includes a first fuselage region laterally opposite to the water tank and a second fuselage region located at the bottom of the water tank in the longitudinal direction, and the water tank is mounted to the first fuselage region so that the top surface of the cover is exposed to the user. In this way, a reasonable and compact arrangement of the fuselage and the water tank can be achieved, and space can be provided for functional expansion of the water tank through the top surface of the cover exposed to the user.

[0007] In some embodiments, the first fuselage region includes a sewage recovery pipeline, which is at least partially arranged in parallel with the water tank and is configured to recover sewage from the cleaning component under the action of a pump; wherein the water tank further includes a first water hole located near the top of the water tank and connected to the second tank, and when the water tank is installed in place, the first water hole is connected to the sewage recovery pipeline at least partially arranged in the first fuselage region. Thus, sewage recovery can be achieved with a more reasonable and compact layout.

[0008] In some embodiments, the first fuselage region further comprises a sewage discharge pipeline, the sewage discharge pipeline is at least partially arranged in parallel with the water tank and is configured to discharge the water in the second tank from the second tank back to the cleaning component; wherein the water tank further comprises a second water hole located near the top of the water tank and connected to the second tank, the second water hole is arranged at a distance from the first water hole, and when the water tank is installed in place, the second water hole is connected to the sewage discharge pipeline at least partially arranged in the first fuselage region. Thus, drainage can be performed when the water in the second tank reaches a predetermined level.

[0009] In some embodiments, the second water through hole is disposed at the same level as the first water through hole or at a higher level than the first water through hole.

[0010] In some embodiments, the first water hole and the second water hole are disposed on the outer peripheral wall or the cover body.

[0011] In some embodiments, the second body area includes a clean water supply pipeline, which is configured to supply clean water to the cleaning component; wherein the water tank also includes a third water hole connected to the first tank and located at the bottom wall, and when the water tank is installed in place, the third water hole is connected to the clean water supply pipeline arranged in the second body area.

[0012] In some embodiments, the cover is an integral cover or a split cover.

[0013] In some embodiments, the cover includes a first cover for covering the first box, the first cover includes an opening arranged through the first cover, and the opening is suitable for engaging a container for containing a cleaning agent. Thus, the cleaning agent can be prevented from entering the box through the cover.

[0014] In some embodiments, the first cover body comprises a first cover member, a second cover member detachably mounted longitudinally to the first cover member, and a valve assembly located between the first cover member and the second cover member, wherein at least a portion of the valve assembly is exposed from the opening, thereby allowing a user to operate the valve assembly through the opening to discharge the cleaning agent.

[0015] In some embodiments, the cover includes a second cover for covering the second tank, the second cover including a longitudinal channel and a transverse channel communicating with the longitudinal channel, wherein when the water in the second tank reaches a predetermined level, the water flows out of the second tank via the longitudinal channel and the transverse channel. Thus, the capacity of the second tank can be utilized to the maximum extent.

[0016] In some embodiments, the first water hole and the second water hole are disposed on the cover body in a laterally protruding manner and when the water tank is installed in place, the first water hole and the second water hole at least partially extend into the first fuselage area.

[0017] In some embodiments, the second cover further comprises a locking member configured to cooperate with a matching locking member disposed on the first fuselage region to detachably lock the water tank to the fuselage.

[0018] In some embodiments, the surface cleaning device comprises a handheld electric mop. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The above and other objects, features and advantages of the embodiments of the present disclosure will become readily understood by reading the following detailed description with reference to the accompanying drawings. In the accompanying drawings, several embodiments of the present disclosure are shown by way of example and not limitation.

[0020] Figure 1 shows an overall schematic diagram of a surface cleaning device according to an embodiment of the present disclosure;

[0021] Figure 2 A schematic structural diagram of a water tank and a body of a surface cleaning device according to an embodiment of the present disclosure is shown, showing a state where the water tank is removed from the body;

[0022] Figure 3 shows an exploded schematic diagram of a water tank according to an embodiment of the present disclosure;

[0023] Figure 4 A schematic cross-sectional view of a water tank according to an embodiment of the present disclosure, taken along a locking member, is shown;

[0024] Figure 5 A schematic cross-sectional view of a water tank according to an embodiment of the present disclosure, cut along a water through hole of a sewage tank; and

[0025] Figure 6 A schematic cross-sectional view of a fuselage according to an embodiment of the present disclosure is shown. DETAILED DESCRIPTION

[0026] Unless otherwise indicated, corresponding numbers and symbols in different figures generally refer to corresponding regions. The accompanying drawings are drawn to clearly illustrate the relevant aspects of the embodiments and are not necessarily drawn to scale. The edges of features drawn in the drawings do not necessarily represent the end of the feature range.

[0027] In the following description, various specific details are shown to provide a deeper understanding of various examples of embodiments according to the description. Embodiments may be obtained without one or more of the specific details, or with other methods, components, materials, etc. In other cases, well-known structures, materials, or operations are not shown or described in detail so as not to obscure aspects of the embodiments.

[0028] References to "one embodiment" or "an implementation" in the framework of this specification are intended to indicate that a particular configuration, structure, or characteristic described with respect to the embodiment is included in at least one embodiment. Therefore, phrases such as "in an embodiment," "in one embodiment," etc., which may appear in various aspects of this specification, do not necessarily refer to exactly the same embodiment. Furthermore, particular configurations, structures, or characteristics may be combined in any appropriate manner in one or more embodiments.

[0029] In the present disclosure, directional terms such as "upper", "lower", "top side", "bottom side", "front", "back", "inside" and "outside" are defined relative to the orientation or position of the components schematically placed in the drawings. It should be understood that these directional terms are relative concepts. They are used for relative description and clarification, rather than indicating or implying that the referred device or component must have a specific orientation, or be constructed and operated in a specific orientation. They may change accordingly according to the change of the orientation of the components placed in the drawings, and therefore cannot be understood as a limitation of the present application.

[0030] The surface cleaning device according to the embodiment of the present disclosure is described in detail below in conjunction with the accompanying drawings. It should be understood that in the illustrated embodiment, a handheld electric mop is used as an example of the surface cleaning device to illustrate the inventive concept according to the present disclosure, and it should be understood that the inventive concept of the present disclosure can also be applied to other surface cleaning devices.

[0031] Figure 1 FIG. 1 shows an overall schematic diagram of a surface cleaning device 1 according to an embodiment of the present disclosure. Figure 1As shown, the surface cleaning device 1 includes a handle 2, a body 3 and a cleaning unit 4. The handle 2 includes an elongated rod suitable for the user to hold. The electric components and various functional components of the surface cleaning device 1 are arranged in the body 3. The body 3 and the handle 2 can be fixed together. The cleaning unit 4 includes a cleaning component, such as a mop, a cleaning brush, etc. The cleaning unit 4 is mounted to the body. In some embodiments, the cleaning unit 4 is rotatably mounted to the body.

[0032] Compared with dry cleaning, wet cleaning has been shown to have better performance in cleaning surface stains. To this end, the surface cleaning device 1 is provided with a clean water release device including a clean water tank and a sewage recovery device including a sewage tank. During the operation of the surface cleaning device 1, the clean water release device provides clean water to the cleaning unit 4 to wet the mop, and the sewage in the cleaning unit 4 (such as a mop) is absorbed by the sewage recovery device. During the operation of the surface cleaning device 1, the user needs to frequently move the surface cleaning device 1, so the portability of the surface cleaning device 1 is an important performance for the device. The clean water tank and the sewage tank are relatively heavy components. For example, when the clean water tank and the sewage tank are stacked, it is very easy to cause the layout of the surface cleaning device 1 to be unreasonable, which not only affects the appearance of the surface cleaning device 1, but also significantly affects the portability, storage, etc. of the surface cleaning device 1. Therefore, in terms of portability, the design of the clean water tank and the sewage tank of the surface cleaning device 1 poses a higher challenge.

[0033] According to the present disclosure, a water tank is provided, comprising a tank body and a cover body detachably mounted to the tank body. The tank body comprises a first tank and a second tank arranged side by side in a transverse direction for forming a sewage tank and a clean water tank, respectively. By means of the side-by-side arrangement of the tank body structure and the separately arranged cover body structure, the volume occupied by the water tank in the overall equipment can be reduced, the cost of the water tank components can be reduced, and further functional expansion of the water tank is possible.

[0034] Figure 2-Figure 6 Structural details of a surface cleaning apparatus according to an embodiment of the present disclosure are shown. Figure 2 and Figure 3 The structural details of the water tank according to the embodiment of the present disclosure are shown respectively. Figure 4 and Figure 5 A schematic cross-sectional view of a water tank is shown. Figure 6 A schematic structural diagram of the interior of a fuselage according to an embodiment of the present disclosure is shown.

[0035] like Figure 2 and Figure 3As shown, the water tank 5 may include a box body and a cover body 51. The box body may include an outer peripheral wall, a bottom wall and a partition plate 57. The outer peripheral wall and the bottom wall together enclose a container with an open top and a closed bottom. The partition plate 57 is arranged in the container, thereby separating the container into a first box 52 and a second box 54 that are isolated from each other and arranged side by side laterally. The first box 52 and the second box 54 can be used to hold liquids such as clean water and sewage, respectively. In some embodiments, the first box 52 close to the outside is a clean water tank, and the second box 54 away from the outside (i.e., close to the first fuselage area 31) is a sewage tank, which has advantages in terms of waterway layout. In some embodiments, the box body can be integrally formed of materials such as plastic. The integrated water tank has advantages in terms of manufacturing and assembly. The cover body 51 is detachably mounted to the box body and is configured to cover the top opening of the box body in a sealed manner.

[0036] In some embodiments, Figure 2 As shown, the fuselage 3 may include a first fuselage region 31 laterally opposite to the water tank 5 and a second fuselage region 32 located at the bottom of the water tank 5. The water tank 5 may be mounted to the fuselage 3 laterally. The top surface of the cover 51 of the water tank 5 is exposed to the user. The top surface of the cover 51 exposed to the user may provide the user with an additional functional interface (described in detail later). In some embodiments, a shape-matching component may be provided on the water tank 5, so that the water tank 5 can be shaped to fit together with the second fuselage region 32.

[0037] In some embodiments, the water tank 5 may extend along the longitudinal direction of the fuselage 3. The transverse dimension of the water tank 5 may be formed to be adapted to the transverse dimension of the second fuselage region 32. Figure 2 As shown, the fuselage 3 can be formed into the shape of an open seat, and the shape of the water tank 5 can match the open seat of the fuselage 3 and be installed to the open seat. In some embodiments, the sum of the transverse dimension of the water tank 5 and the transverse dimension of the first fuselage area 31 is substantially equal to the transverse dimension of the second fuselage area 32.

[0038] In some embodiments, the first box 52 includes a water hole 522 arranged at the bottom wall (see Figure 4 ). Clean water can be discharged from the first tank 52 through the water hole 522. The second fuselage area 32 may include a clean water supply line 322 at least partially arranged below the bottom wall of the water tank 5 (see Figure 6 ). Thus, the clean water supply line 322 can be communicated with the water through hole 522 and is configured to supply clean water to the cleaning components of the surface cleaning device. A pump 324 can be provided on the clean water supply line 322. During the operation of the surface cleaning device 1, the pump 324 operates to supply the water in the first tank 52 to the cleaning components in the cleaning unit 4 through the water through hole 522.

[0039] In some embodiments, Figure 2 and Figure 3 As shown, the cover 51 may be a split cover for respectively covering the first box 52 and the second box 54. The cover 51 may include a first cover 53 for covering the first box 52 and a second cover 55 for covering the second box 54. It should be understood that this is merely exemplary. In other embodiments, the first cover 53 and the second cover 55 may be integrated into one cover.

[0040] In some embodiments, Figure 3 As shown, the first cover 53 may include a longitudinal extension portion, which is formed into a shape that matches the first box 52. A sealing ring 533 may be provided at the outer periphery of the first cover 53. When the first cover 53 covers the first box 52, the sealing ring 533 may seal the first box 52. Similarly, the second cover 55 may include a longitudinal extension portion, which is formed into a shape that matches the second box 54. A sealing ring 558 may be provided at the outer periphery of the second cover 55. When the first cover 53 covers the first box 52, the sealing ring 553 may seal the second box 54.

[0041] In some embodiments, Figure 3 and Figure 4 As shown, the first cover 53 may further include an opening 531 disposed on its top surface. The opening 531 is suitable for receiving a container 6 for containing a cleaning agent. Considering that the top surface of the first cover 53 is exposed to the user, the user can conveniently place the container 6 through this area.

[0042] In some embodiments, the first cover 53 may be formed as an assembly of multiple components. Figure 3 and Figure 4 As shown, the first cover body 53 includes a first cover member 532, a second cover member 534 detachably mounted to the first cover member 532, and a valve assembly 538 held between the first cover member 532 and the second cover member 534. In some embodiments, the valve assembly 538 can be a press-type, such as a button type or an airbag type. The valve assembly 538 can be at least partially exposed from the opening 531 for user operation. The user can conveniently press the operating portion to release the detergent in the container 6 to the first box 52.

[0043] In some embodiments, the second cover 55 may be formed as an assembly of multiple parts. Figure 3 and Figure 4 As shown, the second cover body 55 may include a locking piece 556, which is movably arranged in the main body of the cover body and at least partially exposed from the top surface. The locking piece 556 can be implemented in the form of a button and can be accommodated in a groove of the main body. A spring 559 for resetting can be arranged in the groove, for example. The first fuselage area 31 may include a matching locking piece 314 protruding laterally from the side surface (see Figure 2). The second cover 55 may be provided with a lateral opening opposite to the matching locking piece 314 to allow the matching locking piece 314 to enter. The matching locking piece 314 may engage with a locking piece 556 located in the second cover 55 to lock the water tank 5 as a whole to the first fuselage area 31. When the button 556 is pressed, the locking piece 314 may be unlocked from the matching locking piece 556 to unlock the water tank 5 from the first fuselage area 31. It should be understood that the locking device shown in the figure is only exemplary. The locking device may be implemented in any other appropriate form.

[0044] The water tank 5 may include a first water hole 552 arranged near the top and connected to the second tank 54. The first fuselage area 31 may include a sewage recovery pipeline 312. One end of the sewage recovery pipeline 312 is connected to the first water hole 552, and the other end of the sewage recovery pipeline 312 may be connected to the cleaning unit 4. At least a portion of the sewage recovery pipeline 312 may be arranged side by side with the water tank 5 in a transverse manner, in which case the size of the first fuselage area 31 may be reduced. The sewage recovery pipeline 312 may be provided with a pump 326 (see Figure 6 ), the pump 326 can be arranged in the second body region 32, for example. During the operation of the surface cleaning device 1, the sewage of the cleaning unit 4 can be recovered to the second tank 54 via the sewage recovery pipeline 312 by the operation of the pump 326 to prevent the sewage from accumulating on the surface to be cleaned.

[0045] In some embodiments, the water tank 5 further includes a second water hole 554 arranged near the top of the water tank 5 and connected to the second tank 54. The second water hole 554 is arranged at a distance from the first water hole 552. The first fuselage area 31 also includes a sewage discharge pipeline 315. The sewage discharge pipeline 315 is at least partially arranged side by side with the water tank 5 in a transverse manner and is configured to discharge the sewage contained in the second tank 54 from the second tank 54 to the cleaning part of the surface cleaning device. In some embodiments, the sewage discharge pipeline 315 may not be provided with a pump, and the sewage discharge pipeline 315 may be configured to automatically discharge the water of the second tank 54 when the water in the second tank reaches a predetermined height (for example, via gravity). This has benefits in improving user experience. During the operation of the surface cleaning device, when the second tank 54 is full of sewage, there is a risk of sewage flowing out from the second tank 54, and the sewage flowing outward may contaminate the user's hands, clothes, etc. By additionally providing a sewage discharge pipeline 315 with an automatic backflow function, when the second box 54 is full of sewage, the water is returned to the cleaning surface via the sewage discharge pipeline 315 to prevent the sewage from flowing out of the second box 54 .

[0046] In some embodiments, the second water holes 554 are disposed at the same level as the first water holes 552 or at a higher level than the first water holes 552. In the illustrated embodiment, the first water holes 552 and the second water holes 554 are disposed at the same height.

[0047] In some embodiments, the first water hole 552 and / or the second water hole 554 are disposed on the second cover 55. By disposing the first water hole 552 and / or the second water hole 554 at as high a position as possible, the volume of the second box 54 can be utilized to the maximum extent. In some embodiments, the first water hole 552 and / or the second water hole 554 are disposed on the peripheral wall, for example, near the top opening of the water box.

[0048] Figure 5 FIG. 2 shows a schematic cross-sectional view of a water tank according to an embodiment of the present disclosure, cut along a water hole of a sewage tank. Figure 2 , the first water hole 552 and the second water hole 554 are laterally protrudingly arranged on the side surface of the second cover body 55. The first fuselage region 31 may include a connecting hole 312 at a matching position, and the connecting hole 312 may be a pipe joint of the sewage recovery pipeline 312 or the sewage discharge pipeline 315. When the water tank 5 is installed in place, the first water hole 552 and the second water hole 554 at least partially extend into the first fuselage region 31 to communicate with the pipe joint of the sewage recovery pipeline 312 or the sewage discharge pipeline 315.

[0049] In some embodiments, Figure 5 As shown, the second cover body 55 may include a longitudinal channel 555 and a transverse channel 558 extending in parallel to the top surface of the cover body. The transverse channel 558 is connected to the longitudinal channel 555. When the water tank 5 is installed in place, the sewage from the second tank 54 can rise to the longitudinal channel 555 and flow out of the second tank 54 through the transverse channel 558. Through this structure, the second cover body 55 can be easily formed and the liquid can be prevented from leaking through the first water hole 552 and the second water hole 554.

[0050] Figure 6 FIG. 2 shows a schematic cross-sectional view of a fuselage according to an embodiment of the present disclosure. Figure 6As shown, the first fuselage area 31 can be formed into a shape of an elongated profile, and small components of the surface cleaning equipment such as a sewage recovery pipeline and a sewage discharge pipeline can be arranged inside; and the larger functional components of the surface cleaning equipment, such as pumps 326, 324, motors, etc., can be arranged in the second fuselage area 32. Thus, the size of the second fuselage area 32 can be appropriately designed to determine the form factor of the entire cleaning equipment. Then, the size of the second fuselage area 32 and the water tank 5 can be determined to match the size of the second fuselage area 32. In addition, the longitudinal extension size of the water tank 5 can be adjusted to conveniently adjust the capacity of the water tank. According to the water tank disclosed in the present invention, the volume occupied by the water tank in the overall equipment can be effectively reduced, the cost of the water tank components can be reduced, and the overall layout of the equipment can be made more reasonable and compact.

[0051] Through the teachings given in the above description and the related drawings, many modifications and other embodiments of the present disclosure given here will be recognized by those skilled in the art of the present disclosure. Therefore, it is to be understood that the embodiments of the present disclosure are not limited to the specific embodiments disclosed, and modifications and other embodiments are intended to be included in the scope of the present disclosure. In addition, although the above description and the related drawings describe the example embodiments in the context of some example combinations of parts and / or functions, it should be appreciated that different combinations of parts and / or functions can be provided by alternative embodiments without departing from the scope of the present disclosure. In this regard, for example, other combinations of parts and / or functions that are different from those clearly described above are also expected to be within the scope of the present disclosure. Although specific terms are used here, they are only used in a general and descriptive sense and are not intended to be limited.

Claims

1. A surface cleaning device, characterized in that: include: Body (3); A cleaning component is mounted on the body (3); as well as A water tank (5) is detachably mounted to the fuselage (3), and the water tank (5) comprises: A box body, comprising an outer peripheral wall, a bottom wall and a partition plate (57), wherein the outer peripheral wall and the bottom wall enclose a container with a top opening and a closed bottom, and the partition plate (57) is arranged in the container to separate the container into a first box (52) and a second box (54) which are isolated from each other and arranged side by side in a transverse direction; as well as A cover (51) is detachably mounted to the box and is configured to cover the top opening in a sealed manner.

2. The device according to claim 1, characterized in that The fuselage (3) includes a first fuselage area (31) laterally opposite to the water tank (5) and a second fuselage area (32) located at the bottom of the water tank (5) in the longitudinal direction, and the water tank (5) is mounted to the first fuselage area (31) so that the top surface of the cover (51) is exposed to the user.

3. The device according to claim 2, characterized in that The first fuselage area (31) comprises a sewage recovery pipeline (312), wherein the sewage recovery pipeline (312) is at least partially arranged in parallel with the water tank (5) in a transverse manner and is configured to recover sewage from the cleaning component under the action of a pump; The water tank (5) further comprises a first water through hole (552) located near the top of the water tank (5) and connected to the second tank (54); when the water tank (5) is installed in place, the first water through hole (552) is connected to the sewage recovery pipeline (312) at least partially arranged in the first fuselage area (31).

4. The device according to claim 3, characterized in that The first fuselage region (31) further comprises a sewage discharge line (315), the sewage discharge line (315) being at least partially arranged transversely parallel to the water tank (5) and being configured to discharge water in the second tank (54) from the second tank (54) back to the washing component; The water tank (5) further comprises a second water hole (554) located near the top of the water tank (5) and connected to the second tank (54); the second water hole (554) is arranged at a distance from the first water hole (552); when the water tank (5) is installed in place, the second water hole (554) is connected to the sewage discharge pipeline (315) at least partially arranged in the first fuselage area (31).

5. The device according to claim 4, characterized in that The second water through hole (554) is disposed at the same level as the first water through hole (552) or at a higher level than the first water through hole (552).

6. The device according to claim 4, characterized in that The first water through hole (552) and the second water through hole (554) are arranged on the outer peripheral wall or the cover body (51).

7. The device according to claim 2, characterized in that The second body region (32) comprises a clean water supply pipeline (322), and the clean water supply pipeline (322) is configured to supply clean water to the cleaning component; The water tank (5) further comprises a third water hole (522) which is connected to the first tank (52) and is located at the bottom wall; when the water tank (5) is installed in place, the third water hole (522) is connected to a clean water supply pipeline (322) arranged in the second fuselage area (32).

8. The device according to any one of claims 1 to 7, characterized in that The cover body (51) is an integrated cover body or a split cover body.

9. The device according to claim 8, characterized in that The cover (51) includes a first cover (53) for covering the first box (52), the first cover (53) includes an opening (531) provided through the first cover (53), and the opening (531) is suitable for engaging with a container (6) for containing a cleaning agent.

10. The device according to claim 9, characterized in that The first cover body (53) includes a first cover member (532), a second cover member (534) detachably mounted longitudinally to the first cover member (532), and a valve assembly (538) located between the first cover member (532) and the second cover member (534), wherein at least a portion of the valve assembly (538) is exposed from the opening (531).

11. The device according to claim 4, characterized in that The cover body (51) includes a second cover body (55) for covering the second box (54), the second cover body (55) including a longitudinal channel (555) and a transverse channel (558) connected to the longitudinal channel (555), wherein when the water in the second box (54) reaches a predetermined level, the water flows out of the second box (54) via the longitudinal channel (555) and the transverse channel (558).

12. The device according to claim 11, characterized in that The first water through hole (552) and the second water through hole (554) are arranged on the cover body (51) in a laterally protruding manner, and when the water tank (5) is installed in place, the first water through hole (552) and the second water through hole (554) at least partially extend into the first fuselage area (31).

13. The device according to claim 12, characterized in that The second cover (55) further comprises a locking member (556), wherein the locking member (556) is configured to cooperate with a matching locking member (314) provided in the first fuselage region (31) to detachably lock the water tank (5) to the fuselage (3).

14. The device according to any one of claims 1-7, 9-13, characterized in that The surface cleaning device includes a handheld electric mop.

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