Surface cleaning equipment

By designing a clamping structure in the surface cleaning equipment, the fuselage can stand upright on the ground brush assembly without being affected by external force, the problem that existing equipment cannot stand up stably in a vertical state is solved, and the workload of users is reduced Labor intensity improves user experience.

CN222341119UActive Publication Date: 2025-01-14KUNSHAN XINTAILI PRECISION COMPONENTS CO LTD
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Patent Information

Application Number
CN202421019418.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-05-11
Publication Date
2025-01-14
Estimated Expiration
2034-05-11

AI Technical Summary

Technical Problem

The existing surface cleaning equipment cannot stand upright when the fuselage is switched to a vertical state, resulting in the user having to stand up against the wall, increasing the user's workload and labor intensity.

Method used

A surface cleaning device including a floor brush assembly, a fuselage and a clamping structure is designed, and the first clamping member and the second clamping member are used to clamp the body in an upright state to ensure that the fuselage is not affected by external forces. It can stand upright on the floor brush assembly, reducing the need for users to stand up.

Benefits of technology

It realizes that the fuselage can stand up stably without being affected by external forces, reduces the user's workload and labor intensity, and improves the user experience.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses surface cleaning equipment, and belongs to the technical field of surface cleaning. The surface cleaning equipment comprises a floor brush assembly, a machine body and a clamping structure, the floor brush assembly comprises a floor brush shell and a roller brush rotationally installed on the floor brush shell, and the floor brush shell is provided with a rotating position parallel to the roller brush; the machine body comprises a machine body and a rotating shaft fixed at the lower end of the machine body, and the rotating shaft is rotatably mounted in the rotating position; the clamping structure comprises a first clamping piece and a second clamping piece, the first clamping piece is installed on the rotating shaft, the second clamping piece is installed inside or outside the rotating position, and the second clamping piece can be connected with the first clamping piece in a clamped mode when the machine body is in an upright state so that the machine body can be kept in the upright state. The machine body can stand on the floor brush assembly without external force, a user does not need to make the machine body lean against the wall, the workload of the user is reduced, the labor intensity of the user is relieved, and the use experience of the user is improved.
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Description

Technical Field

[0001] The present application relates to the technical field of surface cleaning, and in particular to a surface cleaning device. Background Art

[0002] Surface cleaning equipment is mainly used to clean and maintain hard surfaces such as floors, tiles, marble, etc. Floor scrubbers are common surface cleaning equipment on the market. They can mop the floor and suck out the water stains left on the floor after mopping to prevent the floor from being too slippery. The sucked-out sewage will be stored in the sewage tank. After the cleaning work is completed, the water in the sewage tank will be centrally processed.

[0003] In the related art, the surface cleaning equipment usually includes a body, a handle, a floor brush assembly, a clean water tank, a dirty water tank and a suction source. The handle is installed at the upper end of the body, the floor brush assembly is installed at the lower end of the body, and the clean water tank, the dirty water tank and the suction source are installed on the body. When the roller brush of the floor brush assembly rotates, the clean water in the clean water tank flows out from the roller brush to remove stains, oil stains and other dirt on the surface to be cleaned while washing and brushing. In this process, the suction source is used to suck the dirty water remaining after the roller brush is cleaned into the dirty water tank to keep the surface to be clean and tidy.

[0004] Since the body is pivotally connected to the floor brush assembly, when the body is converted from a state parallel to the ground to a state perpendicular to the ground, the body cannot stand stably on the floor brush assembly without being affected by external force. Whenever the user needs to temporarily place the device, the body of the device needs to be leaned against a corner of a wall or other vertical surface, which increases the user's workload and affects the user's experience.

[0005] This section provides background information related to the present application which is not necessarily prior art. Utility Model Content

[0006] One object of the present application is to solve or at least alleviate part or all of the above problems. To this end, one object of the present application is to provide a surface cleaning device.

[0007] In order to achieve the above objectives, this application adopts the following technical solutions:

[0008] A surface cleaning device provided in the present application includes a floor brush assembly, a body and a clamping structure, wherein the floor brush assembly includes a floor brush shell and a roller brush rotatably mounted on the floor brush shell, and the floor brush shell has a rotation position arranged parallel to the roller brush; the body includes a body body and a rotating shaft fixed to the lower end of the body body, and the rotating shaft is rotatably mounted in the rotation position; the clamping structure includes a first clamping part and a second clamping part, the first clamping part is mounted on the rotating shaft, and the second clamping part is mounted in or outside the rotation position, and the second clamping part can be clamped with the first clamping part when the body is in an upright state to keep the body in an upright state.

[0009] As an optional solution of the surface cleaning device, the first clamping member has a clamping protrusion, and the second clamping member has a limiting protrusion capable of abutting against the clamping protrusion; or

[0010] The second clamping member has a clamping protrusion, and the first clamping member has a limiting protrusion capable of abutting against the clamping protrusion;.

[0011] As an optional solution of the surface cleaning device, the clamping protrusion extends along the axial direction of the rotating shaft, and the clamping protrusion is a curved surface clamping protrusion.

[0012] As an optional solution for the surface cleaning device, the latching protrusion comprises a first latching protrusion and a second latching protrusion connected in a circular arc transition, and the limiting protrusion can be inserted between the first latching protrusion and the second latching protrusion.

[0013] As an optional solution of the surface cleaning device, the first clamping protrusion is located on a side close to the roller brush, and a top surface of the first clamping protrusion is higher than a top surface of the second clamping protrusion.

[0014] As an optional solution for the surface cleaning device, the second clamping part includes a first fixing part, a limiting part and a second fixing part, the first fixing part and the second fixing part are respectively connected to the two ends of the limiting part and protrude from the limiting part toward the direction of the rotating axis, and the limiting part has the limiting protrusion.

[0015] As an optional solution of the surface cleaning device, the number of the clamping structures is at least two, and the at least two clamping structures are arranged at intervals along the axial direction of the rotating shaft.

[0016] As an optional solution for the surface cleaning device, the first clamping member and the rotating shaft are an integral structure.

[0017] As an optional solution for the surface cleaning device, the number of the rotating positions is two, the two rotating positions are symmetrically arranged around the central axis of the floor brush housing, and both ends of the rotating shaft are rotationally matched with one of the rotating positions respectively.

[0018] As an optional solution of the surface cleaning device, the surface cleaning device further comprises a clean water tank, and two clean water tanks are symmetrically installed on the floor brush assembly with the central axis of the floor brush assembly as the center.

[0019] The beneficial effects of this application are:

[0020] The surface cleaning device provided in the present application includes a floor brush assembly, a machine body and a clamping structure. The floor brush assembly includes a floor brush shell and a roller brush rotatably mounted on the floor brush shell, and the floor brush shell has a rotating position arranged parallel to the roller brush; the machine body includes a machine body and a rotating shaft fixed to the lower end of the machine body, and the rotating shaft can be rotatably mounted in the rotating position; the clamping structure includes a first clamping part and a second clamping part, the first clamping part is mounted on the rotating shaft, and the second clamping part is mounted inside or outside the rotating position, and the second clamping part can be clamped with the first clamping part when the machine body is in an upright state to keep the machine body in an upright state, so that the machine body can stand upright on the floor brush assembly even when not affected by external force, and the user does not need to lean the machine body against the wall, thereby reducing the user's workload, alleviating the user's labor intensity, and improving the user's experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments of the present application. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the contents of the embodiments of the present application and these drawings without paying any creative work.

[0022] Figure 1 is a schematic structural diagram of a surface cleaning device provided in an embodiment of the present application;

[0023] Figure 2 is a cross-sectional schematic diagram of a surface cleaning device provided in an embodiment of the present application;

[0024] Figure 3 is an exploded schematic diagram of a surface cleaning device provided in an embodiment of the present application;

[0025] Figure 4 It is a structural schematic diagram of a floor brush assembly and a body provided in an embodiment of the present application;

[0026] Figure 5 It is a schematic diagram of the exploded view of the body and the clip-on structure provided in the embodiment of the present application.

[0027] Reference numerals:

[0028] 1. fuselage; 11. fuselage body; 111. first mounting position; 112. second mounting position; 113. third mounting position; 114. fourth mounting position; 12. rotation axis;

[0029] 2. Handle;

[0030] 3. Suction source;

[0031] 4. Sewage tank;

[0032] 5. floor brush assembly; 51. floor brush housing; 511. rotating position; 52. roller brush; 53. roller;

[0033] 6. Clean water tank;

[0034] 91, first clamping member; 911, first clamping protrusion; 912, second clamping protrusion;

[0035] 92. Second clamping part; 921. First fixing part; 922. Limiting part; 9221. Limiting protrusion; 923. Second fixing part. DETAILED DESCRIPTION

[0036] Before any embodiments of the application are explained in detail, it is to be understood that the application is not limited in its application to the details of construction and the arrangement of components set forth in the following description or illustrated in the above drawings.

[0037] In this application, the terms "comprises", "includes", "has" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device that includes a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of more restrictions, an element defined by the sentence "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device that includes the element.

[0038] In this application, the term "and / or" is a description of the association relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this application generally indicates that the related objects before and after are in an "and / or" relationship.

[0039] In the present application, the terms "connect", "combine", "couple", and "install" may refer to direct connection, combination, coupling, or installation, or indirect connection, combination, coupling, or installation. For example, direct connection refers to two parts or components being connected together without the need for an intermediate piece, and indirect connection refers to two parts or components being connected to at least one intermediate piece respectively, and the two parts or components being connected via the intermediate piece. In addition, "connect" and "couple" are not limited to physical or mechanical connections or couplings, and may include electrical connections or couplings.

[0040] In the present application, it will be understood by those of ordinary skill in the art that relative terms (e.g., "about," "approximately," "substantially," etc.) used in conjunction with quantities or conditions include the values ​​and have the meaning indicated by the context. For example, the relative terms include at least the degree of error associated with the measurement of a specific value, the tolerances caused by manufacturing, assembly, and use associated with a specific value, and the like. Such terms should also be considered to disclose a range defined by the absolute values ​​of the two endpoints. Relative terms may refer to plus or minus a certain percentage (e.g., 1%, 5%, 10% or more) of the indicated value. Numerical values ​​that do not use relative terms should also be disclosed as specific values ​​with tolerances. In addition, "substantially" may refer to plus or minus a certain degree (e.g., 1 degree, 5 degrees, 10 degrees or more) on the basis of the indicated angle when expressing a relative angular position relationship (e.g., substantially parallel, substantially perpendicular).

[0041] In this application, it will be understood by those skilled in the art that the function performed by a component can be performed by one component, multiple components, one part, or multiple parts. Similarly, the function performed by a part can also be performed by one part, one component, or a combination of multiple parts.

[0042] In the present application, the terms "upper", "lower", "left", "right", "front", "back" and other directional words are described based on the orientation and positional relationship shown in the accompanying drawings, and should not be understood as limiting the embodiments of the present application. In addition, in the context, it is also necessary to understand that when it is mentioned that an element is connected to another element "upper" or "lower", it can not only be directly connected to another element "upper" or "lower", but also indirectly connected to another element "upper" or "lower" through an intermediate element. It should also be understood that directional words such as upper side, lower side, left side, right side, front side, back side, etc. not only represent the positive orientation, but can also be understood as the lateral orientation. For example, the bottom can include directly below, lower left, lower right, lower front, and lower back, etc.

[0043] The present application provides a surface cleaning device for cleaning hard surfaces such as floors, tiles, marble, etc., and for sucking out water stains remaining on the floor after mopping to prevent the floor from being too slippery. It is understandable that the surface cleaning device can be a floor scrubber, such as a portable floor scrubber or a ride-on floor scrubber, etc., which is not limited here.

[0044] Figure 1 A schematic structural diagram of the surface cleaning device provided by the present application is shown. Figure 2 A cross-sectional schematic diagram of a surface cleaning device provided by the present application is shown. Figure 3 Schematic diagram of the decomposition of the surface cleaning device provided by the present application is shown. Figures 1 to 3 As shown, the surface cleaning device includes a body 1, a handle 2, a suction source 3, a sewage tank 4, a floor brush assembly 5 and a clean water tank 6. The body 1 has a first mounting position 111, a second mounting position 112, a third mounting position 113 and a fourth mounting position 114 arranged in sequence from top to bottom, and the handle 2 is installed at the first mounting position 111; the suction source 3 is installed at the second mounting position 112, and the sewage tank 4 is installed at the third mounting position 113. The sewage tank 4 has a water storage cavity, and one end of the sewage tank 4 close to the suction source 3 has a suction port connecting the suction source 3 and the water storage cavity. The suction source 3 sucks water from the surface to be cleaned into the water storage cavity through the suction port; the floor brush assembly 5 is installed at the fourth mounting position 114, and the floor brush assembly 5 includes a floor brush housing 51 and a roller brush 52 rotatably installed on the floor brush housing 51; the clean water tank 6 is installed on the floor brush housing 51 and is used to supply clean water to the roller brush 52.

[0045] Compared with the technical solution in which both the clean water tank 6 and the sewage tank 4 are installed on the body 1, the surface cleaning device provided in the present application installs the clean water tank 6 on the floor brush assembly 5, and only installs the sewage tank 4 on the body 1. The volume of the sewage tank 4 can be increased to avoid the sewage in the sewage tank 4 being sucked into the suction source 3 through the suction port, thereby ensuring that the suction source 3 can work stably and improving the stability of the equipment.

[0046] Continue to see Figure 3 As shown, two clean water tanks 6 are symmetrically installed at both ends of the floor brush assembly 5. Such an arrangement can not only make the overall force of the floor brush assembly 5 balanced, but also increase the gravity of the floor brush assembly 5, so that the floor brush assembly 5 is more stable when walking. The two clean water tanks 6 are arranged at intervals along the length direction of the roller brush 52, and the two clean water tanks 6 have a connecting port, and the connecting ports of the two clean water tanks 6 are connected by a pipeline, thereby improving the cleaning efficiency of the roller brush 52.

[0047] When the floor needs to be cleaned, the user can stand on the rear side of the surface cleaning device, hold the handle 2 of the surface cleaning device and push the surface cleaning device to clean the floor. It will take a lot of physical strength for the user to push the surface cleaning device for a long time. In order to reduce the labor intensity of the user when cleaning the floor, the floor brush assembly 5 also includes a roller 53, which is rotatably mounted on the floor brush housing 51, and the wheel surface of the roller 53 can contact the ground, so that the floor brush assembly 5 can roll forward relative to the ground. In one embodiment, the number of rollers 53 is two, and the two rollers 53 are symmetrically mounted on the floor brush housing 51 with the central axis of the floor brush housing 51 as the center, so that the floor brush assembly 5 can stably roll forward relative to the ground.

[0048] In one embodiment, the third installation position 113 is a receiving groove, and the sewage tank 4 is detachably installed in the receiving groove. When the sewage tank 4 is installed in the receiving groove of the fuselage body 11, the outer surface of the sewage tank 4 is flush with the outer surface of the fuselage body 11, and the assembly of the fuselage body 11 and the sewage tank 4 forms a cylindrical whole (see Figure 1 ), which can improve the aesthetics of the equipment.

[0049] The body 1 and the floor brush assembly 5 are rotatably connected to facilitate the user to adjust the angle between the body 1 and the floor brush assembly 5 according to the cleaning needs, so as to clean the floor at different positions and angles. In one embodiment, the floor brush housing 51 has a rotation position 511 arranged in parallel with the roller brush 52; the body 1 includes a body 11 and a rotation shaft 12 fixed to the lower end of the body 11, and the rotation shaft 12 can be rotatably installed in the rotation position 511 to enable the body 11 to rotate relative to the floor brush assembly 5. Furthermore, the number of the rotation positions 511 is two, and the two rotation positions 511 are symmetrically arranged with the central axis of the floor brush housing 51 as the center, and the two ends of the rotation shaft 12 are respectively rotatably matched with one rotation position 511.

[0050] In one embodiment, the rotation position 511 may be a rotation hole or a U-shaped rotation groove, as long as the rotation shaft 12 can be easily rotated at the rotation position 511 , and no limitation is made here.

[0051] Since the body 1 is pivotally connected to the floor brush assembly 5, and when the body 1 is changed from a state parallel to the ground to a state perpendicular to the ground, the body 1 cannot stand stably on the floor brush assembly 5 without being affected by external force, so that whenever the user needs to temporarily place the device, the body 1 of the device needs to be placed against a corner of a wall or other vertical surface, which increases the user's workload and affects the user's experience.

[0052] In order to solve the above problems, the surface cleaning device provided in the present application also includes a clip-on structure, which is used to lock the body 1 on the floor brush assembly 5 when it is in an upright state, so that the body 1 remains in an upright state. There is no need to lean the body 1 against the wall, thereby reducing the user's workload, alleviating the user's labor intensity, and improving the user experience.

[0053] Figure 4 A schematic structural diagram of the floor brush assembly 5 and the body 1 provided in the present application is shown. Figure 5 The exploded schematic diagram of the fuselage 1 and the clamping structure provided by the present application is shown. Figures 4 to 5 As shown, the clamping structure includes a first clamping component 91 and a second clamping component 92. The first clamping component 91 is installed on the axial surface of the rotating shaft 12, and the second clamping component 92 is installed in the rotating position 511. The second clamping component 92 can be clamped with the first clamping component 91 when the body 1 is in an upright state to keep the body 1 in an upright state, so that the body 1 can stand upright on the floor brush assembly 5 without being affected by external force. The user does not need to lean the body 1 against the wall, which reduces the user's workload, reduces the user's labor intensity, and improves the user experience.

[0054] Of course, in other embodiments, the first clamping component 91 can also be installed on the end face of the rotating shaft 12, and the second clamping component 92 can be installed outside the rotating position 511. As long as the fuselage 1 can be in an upright state, the second clamping component 92 and the first clamping component 91 can be clamped and locked to lock the rotating shaft 12, and there is no limitation here.

[0055] The number of the clamping structures is at least two, and at least two clamping structures are arranged at intervals along the axis direction of the rotating shaft 12 to ensure the locking strength of the clamping structure on the rotating shaft 12, and to ensure that the rotating shaft 12 is stably maintained in the upright state of the machine body 1. Further, the number of the clamping structures is an even number, and the clamping structures are divided into two groups symmetrically arranged with the central axis of the floor brush housing 51 as the center.

[0056] The first clamping member 91 has a first clamping protrusion 911 and a second clamping protrusion 912 connected in a circular arc transition, and the second clamping member 92 has a limiting protrusion 9221 that can be inserted between the first clamping protrusion 911 and the second clamping protrusion 912. In one embodiment, the first clamping protrusion 911 and the second clamping protrusion 912 both extend along the axial direction of the rotating shaft 12, and the first clamping protrusion 911 and the second clamping protrusion 912 are both arc surface clamping protrusions. In addition, the first clamping protrusion 911 is located on the side close to the roller brush 52, and the top surface of the first clamping protrusion 911 is higher than the top surface of the second clamping protrusion 912. This arrangement ensures that when the rotating shaft 12 rotates, the first clamping protrusion 911 can smoothly push open and pass over the limiting protrusion of the second clamping member 92, so that the limiting protrusion can be inserted between the first clamping protrusion 911 and the second clamping protrusion 912.

[0057] In another embodiment, the first clamping member 91 may also have only one clamping protrusion. When the body 1 needs to be placed upright on the floor brush assembly 5, the user can rotate the body 1 in a direction away from the user. During this process, the clamping protrusion can lift up and pass over the limiting protrusion 9221 of the second clamping member 92. When the clamping protrusion passes over the limiting protrusion 9221, the limiting protrusion 9221 is located on the side of the clamping protrusion close to the user. In other words, the limiting protrusion 9221 can limit the clamping protrusion to prevent the clamping protrusion from rotating in a direction close to the user, thereby limiting the body 1 to an upright state. In addition, since the part of the floor brush assembly 5 that cooperates with the body 1 is an open horizontally arranged U-shaped groove, the bottom of the U-shaped groove can limit the body 1 to prevent the body 1 from continuing to rotate in a direction away from the user.

[0058] The second clamping member 92 includes a first fixing portion 921, a limiting portion 922 and a second fixing portion 923, the first fixing portion 921 and the second fixing portion 923 are respectively connected to the two ends of the limiting portion 922 and protrude from the limiting portion 922 toward the direction of the rotating shaft 12, the first fixing portion 921 and the second fixing portion 923 are fixedly connected to the floor brush housing 51, the limiting portion 922 has a limiting protrusion, and the limiting portion 922 can be deformed upward when the first clamping protrusion 911 pushes up the limiting protrusion, so that the limiting protrusion can pass over the first clamping protrusion 911 and be inserted between the first clamping protrusion 911 and the second clamping protrusion 912.

[0059] Furthermore, the limiting protrusion 9221 is an arc-shaped protrusion, and the arc surface of the limiting protrusion 9221 can fit with the arc surface of the first protrusion 911. The cooperation between the two can play a certain guiding role, ensuring that the first protrusion 911 can smoothly lift the limiting protrusion 9221.

[0060] In this embodiment, the first clamping member 91 and the rotating shaft 12 are an integral structure; the second clamping member 92 is an integral structure. Of course, in other embodiments, the first clamping member 91 can also be fixed to the rotating shaft 12 by bolts or adhesive, and the second clamping member 92 can also be a split structure assembled by detachable fixed connection.

[0061] The above shows and describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the above embodiments do not limit the present application in any form, and any technical solution obtained by equivalent replacement or equivalent transformation falls within the protection scope of the present application.

Claims

1. A surface cleaning device, characterized in that: include: A floor brush assembly (5) comprises a floor brush housing (51) and a roller brush (52) rotatably mounted on the floor brush housing (51), wherein the floor brush housing (51) has a rotation position (511) arranged parallel to the roller brush (52); The fuselage (1) comprises a fuselage body (11) and a rotating shaft (12) fixed to the lower end of the fuselage body (11), wherein the rotating shaft (12) can be rotatably mounted on the rotating position (511); The clamping structure comprises a first clamping component (91) and a second clamping component (92), wherein the first clamping component (91) is mounted on the rotating shaft (12), and the second clamping component (92) is mounted inside or outside the rotating position (511), and the second clamping component (92) can be clamped with the first clamping component (91) when the body (1) is in an upright state, so as to keep the body (1) in an upright state.

2. The surface cleaning device according to claim 1, characterized in that The first clamping member (91) has a clamping protrusion, and the second clamping member (92) has a limiting protrusion (9221) capable of abutting against the clamping protrusion; or The second clamping member (92) has a clamping protrusion, and the first clamping member (91) has a limiting protrusion (9221) capable of abutting against the clamping protrusion.

3. The surface cleaning device according to claim 2, characterized in that The clamping protrusion extends along the axial direction of the rotating shaft (12) or is perpendicular to the axial direction of the rotating shaft (12), and the clamping protrusion is a curved surface clamping protrusion.

4. The surface cleaning device according to claim 3, characterized in that The latching protrusion comprises a first latching protrusion (911) and a second latching protrusion (912) connected in a circular arc transition, and the limiting protrusion (9221) can be latched between the first latching protrusion (911) and the second latching protrusion (912).

5. The surface cleaning device according to claim 4, characterized in that The first latching protrusion (911) is located on a side close to the roller brush (52), and the top surface of the first latching protrusion (911) is higher than the top surface of the second latching protrusion (912).

6. The surface cleaning device according to claim 2, characterized in that The second clamping member (92) comprises a first fixing portion (921), a limiting portion (922) and a second fixing portion (923), wherein the first fixing portion (921) and the second fixing portion (923) are respectively connected to two ends of the limiting portion (922) and protrude from the limiting portion (922) in the direction of the rotating shaft (12), and the limiting portion (922) has the limiting protrusion.

7. The surface cleaning device according to claim 1, characterized in that The number of the clamping structures is at least two, and at least two of the clamping structures are arranged at intervals along the axial direction of the rotating shaft (12).

8. The surface cleaning device according to any one of claims 1 to 7, characterized in that The first clamping member (91) and the rotating shaft (12) are an integral structure.

9. The surface cleaning device according to claim 8, characterized in that The number of the rotating positions (511) is two, and the two rotating positions (511) are symmetrically arranged with the central axis of the floor brush housing (51) as the center, and the two ends of the rotating shaft (12) are respectively rotationally matched with one of the rotating positions (511).

10. The surface cleaning device according to claim 9, characterized in that The surface cleaning device further comprises a clean water tank (6), wherein two clean water tanks (6) are symmetrically mounted on the floor brush assembly (5) with the central axis of the floor brush assembly (5) as the center.