Floor brush and surface cleaning device

Abstract

The present disclosure provides a floor brush configured to be mounted on a main body of a surface cleaning device, comprising: a housing formed to divide an accommodating space, the profile of the housing having a width and a length, the width being greater than the length; the two rollers are respectively arranged on the rear side of the outer part of the shell along the width direction; the control substrate is configured to at least control accessories on the floor brush; wherein the accommodating space is provided with a first accommodating part for accommodating the control substrate; a second accommodating part which is adjacent to the first accommodating part in the length direction and accommodates the accessory; and the first accommodating part is positioned behind the second accommodating part and is positioned between the two rollers.

Description

Technical Field

[0001] This disclosure relates to a floor brush and surface cleaning device. Background Technology

[0002] Current surface cleaning devices typically include a control board on the floor brush to control the movement of various components during the cleaning process. These components control the agitation mechanism, the brush's drive wheel, and, in wet surface cleaning equipment, the liquid dispensing mechanism. However, the control board usually occupies a large area, and its placement requires consideration of waterproofing and heat dissipation. Currently, the control board is located on the left and right sides of the brush. This space-consuming design leads to difficulties in overall layout. As floor brushes become more functional and have more accessories, the brush housing will become increasingly larger in both vertical and horizontal dimensions.

[0003] Therefore, a new surface cleaning device needs to be designed to solve the above-mentioned technical problems. Utility Model Content

[0004] To address one of the aforementioned technical problems, this disclosure provides a floor brush and a surface cleaning device.

[0005] According to one aspect of this disclosure, a floor brush is provided, configured on the body of a surface cleaning device, comprising:

[0006] A housing is formed in a manner that divides the receiving space, the outline of the housing forming a width and a length, the width being greater than the length;

[0007] Two rollers are respectively disposed on the rear side of the outer side of the housing along the width direction;

[0008] And, a control board, configured to at least control the accessories on the ground brush;

[0009] The accommodating space includes a first accommodating portion for accommodating the control board; a second accommodating portion adjacent to the first accommodating portion in the longitudinal direction for accommodating the accessory; the first accommodating portion is located behind the second accommodating portion and between the two rollers.

[0010] According to one example of this disclosure, both rollers have axes of rotation that pass through the first receiving portion.

[0011] According to one example of this disclosure, the floor brush includes a connecting portion configured to pivotally connect the housing to the body of the surface cleaning device; the first receiving portion is located below the connecting portion.

[0012] According to one example of this disclosure, the first receiving portion is configured to be formed in a hermetically sealed manner by a receiving housing.

[0013] According to one example of this disclosure, the housing is configured to form part of the outer surface of the housing.

[0014] According to one example of this disclosure, the housing is provided with a wire through hole, configured to allow the connection wires of the control board and the accessory to pass through.

[0015] According to one example of this disclosure, the accessory includes:

[0016] A motor is used to provide rotational power to the agitator of the floor brush;

[0017] A portion of the connecting wires for connecting the motor and the control board; a pump for supplying cleaning fluid to the agitator of the floor brush; a portion of the connecting wires for connecting the pump and the control board; and a liquid line connected to the pump.

[0018] According to one example of this disclosure, the accessory includes:

[0019] An edge agitator is located on at least one side of the floor brush in the width direction;

[0020] The second motor is used to provide rotational power to the edge stirring element of the floor brush;

[0021] Wiring used to connect the second motor and the control board.

[0022] According to one example of this disclosure, two third motors are included, each for driving the two rollers, and the two third motors are located on both sides of the width direction of the second receiving portion.

[0023] According to another aspect of this disclosure, a surface cleaning apparatus is provided, comprising:

[0024] Main body;

[0025] The removable dirt collection bin is located on the main body.

[0026] The aforementioned floor brush is configured to be pivotally connected to the main body. Attached Figure Description

[0027] The accompanying drawings illustrate exemplary examples of this disclosure and, together with its description, serve to explain the principles of this disclosure. These drawings are included to provide a further understanding of this disclosure and are incorporated in and constitute a part of this specification.

[0028] Figure 1 A schematic diagram of the structure of a surface cleaning apparatus according to an example of this disclosure is shown.

[0029] Figure 2This is an exploded view of a floor brush according to an example of this disclosure.

[0030] Figure 3 This is a top view of the base of a floor brush according to an example of this disclosure.

[0031] Figure 4 This is a three-dimensional structural diagram of the base of a floor brush according to an example of this disclosure.

[0032] Figure 5 This is a structural diagram of a floor brush with a mounting base for a connecting part installed on the base portion, according to an example of this disclosure.

[0033] Figure 6 This is a perspective view of a mounting base for a connector according to an example of this disclosure. Detailed Implementation

[0034] The present disclosure will now be described in further detail with reference to the accompanying drawings and examples. It should be understood that the specific examples described herein are for illustrative purposes only and are not intended to limit the scope of the disclosure. Furthermore, it should be noted that, for ease of description, only the parts relevant to the present disclosure are shown in the accompanying drawings.

[0035] It should be noted that, where there is no conflict, the examples and features in this disclosure can be combined with each other. The technical solutions of this disclosure will now be described in detail with reference to the accompanying drawings and examples.

[0036] Unless otherwise stated, the exemplary examples / embodiments shown are to be understood as providing exemplary features of various details that provide ways in which the technical concepts of this disclosure can be implemented in practice. Therefore, unless otherwise stated, the features of the various examples / embodiments may be additionally combined, separated, interchanged and / or rearranged without departing from the technical concepts of this disclosure.

[0037] The use of crosshairs and / or shading in the accompanying drawings is generally used to clarify the boundaries between adjacent components. Thus, unless otherwise stated, the presence or absence of crosshairs or shading does not convey or indicate any preference or requirement for the specific material, material properties, dimensions, proportions, commonalities between the illustrated components, or any other characteristics, properties, etc., of the components. Furthermore, in the accompanying drawings, the dimensions and relative dimensions of components may be exaggerated for clarity and / or descriptive purposes. When exemplary embodiments can be implemented differently, a specific process sequence may be performed in a different order than that described. For example, two consecutively described processes may be performed substantially simultaneously or in the reverse order of their description. Furthermore, the same reference numerals denote the same components.

[0038] When a component is referred to as being "on" or "above" another component, "connected to," or "joined to" another component, the component may be directly on, directly connected to, or directly joined to the other component, or there may be intermediate components. However, when a component is referred to as being "directly on" another component, "directly connected to," or "directly joined to" another component, there are no intermediate components. Therefore, the term "connection" can refer to a physical connection, an electrical connection, etc., and may or may not have intermediate components.

[0039] For descriptive purposes, this disclosure may use spatial relative terms such as “below,” “under,” “below,” “down,” “above,” “above,” “higher,” and “side (e.g., in a “sidewall”)” to describe the relationship between one component and another component as shown in the accompanying drawings. In addition to the orientations depicted in the drawings, the spatial relative terms are also intended to encompass different orientations of the device during use, operation, and / or manufacture. For example, if the device in the drawings is flipped, a component described as “below” or “under” another component or feature would subsequently be positioned “above” said other component or feature. Thus, the exemplary term “below” can encompass both “above” and “below” orientations. Furthermore, the device may be otherwise positioned (e.g., rotated 90 degrees or in other orientations), thus interpreting the spatial relative descriptive terms used herein accordingly.

[0040] The terminology used herein is for the purpose of describing particular embodiments and is not intended to be limiting. As used herein, unless the context clearly indicates otherwise, the singular forms “a” and “the” are intended to include the plural forms as well. Furthermore, when the terms “comprising” and / or “including” and variations thereof are used in this specification, it indicates the presence of the stated features, integrals, steps, operations, parts, components, and / or groups thereof, but does not exclude the presence or addition of one or more other features, integrals, steps, operations, parts, components, and / or groups thereof. It should also be noted that, as used herein, the terms “substantially,” “about,” and other similar terms are used as approximate terms rather than as terms of degree, thus explaining the inherent biases in measurements, calculated values, and / or provided values ​​that would be recognized by one of ordinary skill in the art.

[0041] In this disclosure, the surface cleaning system is designed to support surface cleaning devices for cleaning and maintenance. In some examples, the surface cleaning device may be configured to perform a semi-autonomous or autonomous dirt particle collection process. In some examples of this disclosure, the surface cleaning device may be a wet surface cleaning device, i.e., capable of wet cleaning the surface to be cleaned, wherein the surface to be cleaned may be a floor surface, preferably a household floor surface. Furthermore, after the surface cleaning device wet-cleans the floor surface, the dirt and liquid (wastewater) from cleaning the surface to be cleaned can be recovered back to the surface cleaning device.

[0042] Sometimes, the design requirements of surface cleaning devices necessitate multiple accessories. In such cases, an auxiliary agitator is required, along with its drive motor. In wet cleaning mode, a liquid supply device for the auxiliary agitator, such as a liquid supply line and a liquid pump, is also needed. All these accessories require control by a control board. When the control board and accessories are both positioned in the left-right space relative to the floor brush, space is lost for arranging the control board.

[0043] The disclosed solution saves installation space in the main housing space of the floor brush by placing the control board in the relative space between a pair of rollers on the rear side of the floor brush, thereby facilitating the design and installation of other accessories.

[0044] like Figure 1 As shown, the surface cleaning device may include components such as a handle 100, a main body 200, a cleaning liquid tank 300, a dirt collection tank 400, a connecting part 500, and a floor brush 600.

[0045] The handle 100 is detachably provided on the main body 200. The user can operate the surface cleaning device by operating the handle 100, and the main body 200 can be in an upright state (non-working state) and an inclined state (working state). In the inclined working state, the main body 200 can be at about 180° to the surface to be cleaned, so that the floor brush 600 and at least a part of the main body 200 can enter the environment under the furniture for continuous cleaning.

[0046] More preferably, the handle 100 may be provided with a user interaction button, which the user can trigger to control the surface cleaning device, such as controlling the start and stop of the surface cleaning device, the liquid supply speed of the surface cleaning device and the suction power of the electric suction source, etc., and also controlling the opening and closing of the user voice interaction system, as well as voice volume control, thereby improving the user experience of the surface cleaning device.

[0047] In one example, the main body 200 forms the main body of the surface cleaning device; the main body 200 is pivotally connected to the floor brush 600 via the connecting part 500; furthermore, the main body 200 and the floor brush 600 can each or both accommodate components such as the cleaning liquid tank 300 and the dirt collection tank 400. In this disclosure, the dirt collection tank 400 can be detachably mounted to the rear side of the main body 200, and the cleaning liquid tank 300 can be detachably mounted on the floor brush 600, forming a portion of the outer surface of the dirt collection tank 400 and a portion of the outer surface of the floor brush 600, respectively. This arrangement lowers the overall center of gravity of the surface cleaning device, allowing users to more easily move the surface cleaning device by hand.

[0048] In one example, after the cleaning fluid tank 300 is installed on the floor brush 600, the overall thickness of the floor brush 600 is set to be less than 120mm.

[0049] like Figure 2 As shown, the cleaning fluid tank 300 has a flat shape to fit the overall contour of the floor brush 600. It includes a cavity formed by multiple walls to hold the cleaning fluid, and the capacity of the cleaning fluid tank 300 can be set to 500 mL, etc. The cleaning fluid tank 300 of this disclosure has an upper surface, on which an inlet cover for a cavity protruding from the upper surface is provided; the cavity is used to hold the cleaning fluid.

[0050] The cleaning liquid tank 300 is used to store the cleaning liquid to be dispensed. Accordingly, the cleaning liquid tank 300 can be connected to a liquid dispenser (not shown in the figure), so that the cleaning liquid in the cleaning liquid tank 300 can be pressurized by the liquid dispenser and supplied to the cleaning liquid outlet on the floor brush 600, or supplied to the surface to be cleaned near the floor brush 600, thereby enabling wet cleaning of the surface to be cleaned by the cleaning liquid.

[0051] In a preferred example, the liquid dispenser may include a supply pump (not shown) capable of drawing cleaning liquid from the cleaning liquid tank 300, pressurizing the cleaning liquid, and supplying it to the dispensing component, which then supplies the pressurized cleaning liquid to the agitator 630 of the floor brush 600 or to the surface to be cleaned near the agitator 630.

[0052] In this disclosure, the cleaning liquid can be one or more of any suitable liquid, including but not limited to cleaning water, concentrated detergent, diluted detergent, or mixtures thereof. Furthermore, the cleaning liquid can be a room-temperature cleaning liquid or a high-temperature cleaning liquid. The main body 200 has a receiving space, and the dirty waste collection bin 400 is detachably disposed in the main body 200 and located within the receiving space, so that when the dirty waste collection bin 400 contains a large amount of liquid, the user can remove the dirty waste collection bin 400, empty the wastewater, and clean up the solid waste. At this time, a portion of the outer surface of the dirty waste collection bin 400 forms part of the outer surface of the surface cleaning device.

[0053] To recover the liquid after cleaning the surface, the dirt recovery tank 400 can be connected to the floor brush 600 via a recovery pipe (not shown). Accordingly, the mixture of dirt, wastewater, and gas (solid-liquid mixture) can be recovered to the dirt recovery tank 400 via this recovery pipe. In one example, a solid-liquid separator can be installed inside the dirt recovery tank 400 to separate the solid and liquid mixture recovered by the surface cleaning device after cleaning the surface. This allows the separated solids to be retained in the separator, while the separated liquid is stored inside the dirt recovery tank 400.

[0054] In this disclosure, the surface cleaning device further includes an electric suction source (not shown), which may include a vacuum motor, thereby generating a vacuum (negative pressure). Simultaneously, the electric suction source can be connected to a dirt collection tank 400, thereby providing the negative pressure to the dirt collection tank 400, thus achieving forced flow of gas and wastewater within the collection pipeline. In this disclosure, the gas discharged from the electric suction source can flow to the outside of the surface cleaning device through gaps on a portion of its outer surface.

[0055] like Figure 2 and Figure 3 The floor brush 600 disclosed herein may include: a base 610, a cleaning fluid tank 300, a stirrer 630, a suction nozzle 640, a cleaning head assembly 650, and other auxiliary components.

[0056] The base portion 610 and the cleaning fluid tank 300 of this disclosure can be integrally formed into the housing of the floor brush 600, which is pivotally connected to the main body portion 200 via the connecting portion 500. Furthermore, the housing is configured to be movable on the surface of the floor to be cleaned. For example, two rollers 202 may be provided on the base portion 610, and the housing moves on the surface to be cleaned by the rolling of the rollers.

[0057] The agitator 630 is configured to agitate the surface to be cleaned. Specifically, the agitator 630 is detachably mounted on the base 610 and can be driven to rotate; that is, when the surface cleaning device is performing a cleaning operation or a self-cleaning operation, the agitator 630 can be driven by a motor to rotate, thereby enabling the agitator 630 to make frictional contact with the surface to be cleaned and achieve cleaning of the surface. During the frictional contact between the agitator 630 and the surface to be cleaned, cleaning liquid from the cleaning liquid tank 300 can be supplied to the agitator 630, thereby achieving wet cleaning of the surface to be cleaned.

[0058] In one example, the agitator 630 of the floor brush 600 can be a roller-type cleaning component; those skilled in the art will know that the floor brush 600 can also be configured as a tracked cleaning device, etc., in which case the agitator 630 of the floor brush 600 can be a tracked cleaning component, etc. In this disclosure, a roller-type cleaning component is used as an example for explanation.

[0059] In one example, the motor can be located outside the housing and drive the agitator 630 to rotate via a synchronous belt drive (i.e., the agitator 630 is operatively connected to the motor); in another example, the motor can be located inside the agitator 630 and can drive the agitator 630 to rotate; in this disclosure, the agitator 630 is capable of rotating along a first axis; more preferably, the first axis can be a horizontal straight line in the transverse direction, which is the direction perpendicular to the front-back direction; the front-back direction is the direction of movement of the surface cleaning device when cleaning the surface to be cleaned.

[0060] The cleaning liquid tank 300 is disposed on the base portion 610 and configured to partially surround the agitator 630. The cleaning liquid tank 300 is able to interfere with at least a portion of the outer surface of the agitator 630 so that the cleaning liquid on the agitator 630 is distributed more evenly.

[0061] To further improve the edge cleaning ability of vacuum cleaners, such as Figure 2 and Figure 3 As shown, an example of the present disclosure includes a cleaning head assembly 650 located near the side of the floor brush 600. The cleaning head assembly 650 is located at the bottom of the floor brush 600 and is driven by a drive motor 660 to move between a raised position and a lowered position. The cleaning head assembly 650 is further away from the surface to be cleaned in the raised position than in the lowered position. Moreover, in the lowered position, the working range of the cleaning head assembly 650 is outside the horizontal projection of the housing. That is, the cleaning head assembly 650 of the present disclosure is capable of cleaning areas outside the projection of the housing on the horizontal plane.

[0062] When using the surface cleaning apparatus of this disclosure, for example when cleaning a horizontal surface, the cleaning head assembly 650 does not always contact the surface (e.g., a horizontal surface) but selectively contacts it. For example, when cleaning a corner or other location on the surface, the cleaning head assembly 650 can be lowered to a lowered position, allowing it to contact and clean the surface. Then, when the surface cleaning apparatus moves away from the corner or other location, the cleaning head assembly 650 can be raised to a raised position. In this raised position, the cleaning head assembly 650 is in a non-operating state; cleaning fluid can be withheld, and the cleaning head assembly 650 can be de-rotated.

[0063] In a preferred example, the cleaning head assembly 650 of this disclosure is positioned near the right side wall of the floor brush 600.

[0064] like Figure 3 As shown, the base portion 610 generally has a shape that is wider in the width direction than in the front-to-back direction. The base portion 610 includes a pair of side portions 611, 612, which are positioned apart from each other in the width direction by means of a receiving portion 621. Related accessories, including the stirrer 630 and the cleaning head assembly 650, are arranged within the receiving portion 621.

[0065] The base portion 610 also includes a rear portion 613. The rear portion 613 is configured on the base portion 610 at an adjacent position to the sides 611 and 612, and is connected to the sides 611 and 612 respectively. The rear portion 610 has an internal hollow structure in the width direction to partially form a receiving portion 622. The control board 700 of the floor brush 600 is used to arrange the control board 700 of the cleaning head within the receiving portion 622.

[0066] It is advantageous to utilize the space of the hollow structure inside the rear 125 to accommodate the control board 700. This allows the accommodating portion between the sides 611 and 612 to accommodate more executable components, such as motors, pumps, heaters, pipes, and wires, thus enriching the brush's functionality compared to the conventional approach.

[0067] According to one example of this disclosure, a pair of rollers 202 are located on the rear side of the base portion 610, and motors 208 are respectively connected to the rollers 202 to provide rotational force and rotate with the rollers 202 when they rotate. That is, when the motors 208 are electrically driven, the rollers 202 rotate, thereby making the surface cleaning device body of the surface cleaning device electrically movable.

[0068] When roller 202 rotates, motor 208 can rotate by means of the rotation of roller 202. Motor 208 can be manually driven by the manual rotation of roller instead of being electrically driven. This manual rotation of motor 208 does not require current to be applied to motor 208, unlike electrically driven rotation.

[0069] Motor 208 can also provide rotational driving force to rotate roller 202. That is, motor 208 can actively rotate roller 202. When current is applied to motor 208, roller 202 can be electrically driven by motor to rotate electrically.

[0070] A pair of rollers 202 are disposed at the junction 614 of the sides 611, 612 and the rear 613. In one example, the junction of the rear 613 and the sides 611, 612 accommodates the rollers 202, which are configured on the outer wall of the junction to facilitate contact with the surface to be cleaned. Figure 4 As shown, the hollow structure inside the rear portion 125 is located between a pair of rollers 202, thus forming an additional space S inside the rear portion 613 of the middle section of the pair of rollers 202 to accommodate the control board 700. In one example, the drive motor 208 of the rollers is disposed in the space between the inner wall of the connection and the inner wall of the rear portion 125. The space between the drive motors 208 is configured to form part of the receiving portion 622 for placing the control board 700.

[0071] A connecting part 500 is typically included on a floor brush 600. For example... Figure 5 and 6 As shown, in one example, the connecting portion 500 includes a mounting base 501 detachably mounted on the frame of the base portion 610. The mounting base 501 is a generally C-shaped plate-like portion that opens forward (towards the stirrer) when viewed from above. The C-shaped plate-like portion facilitates the passage of the vacuum suction tube P through the C-shaped recess of the mounting base 501, so that the mounting base 501 does not interfere with the vacuum suction tube P when the floor brush 600 and the main body portion 200 pivot relative to each other.

[0072] like Figure 6 As shown, an additional space S1 is formed within the C-shaped plate-like portion of the mounting base 501. This space S1 is configured to, together with the aforementioned space S, constitute the receiving portion 622 of the control substrate 700. In one example, the mounting base 501 is removably mounted to the base portion 610 by means of threaded fastening. In another example, after the mounting base 501 is correctly installed, the vertical wall 502 forming the space S1 engages with the base portion 610 to cover the mounting bracket of the control substrate 700, thereby enclosing the control substrate 700 within the receiving portion 622 formed by the spaces S and S1.

[0073] After the mounting base is fixed to the base portion 610, a closed space is formed with the inner side of the bottom wall of the base portion 610 to surround the control board 700. In some examples, the closed space is formed in a sealed manner to prevent external contaminants from entering the closed space and to protect the control board 700 from corrosion. In other examples, a wire through hole is provided on the inner bottom side of the base portion 610 or on the outer wall of the mounting base, configured to allow the connection wires of the control board 700 and the accessories to pass through.

[0074] The mounting bracket for the control board 700 can be a support structure extending outward from the inner wall of the rear part of the base portion 610, so as to facilitate placing the control board 700 horizontally in the rear space of the base portion 610, and can be fixed to the support structure on the bottom inner side of the base portion 610 by a fastening structure.

[0075] In some examples, the control board 700 is equipped with various electronic components for controlling the stirrer motor, cleaning head assembly motor, liquid pump, heater, etc. The control board 700 is fixed to the support structure with the side of the electronic components facing upwards and / or downwards.

[0076] On the base portion 610, a receiving portion 622 for accommodating the control board 700 and a receiving portion 621 for accommodating other accessories besides the control board 700 are divided within the base portion 610 by the upright wall 502 of the mounting base 501 and the inner side of the bottom wall of the base portion 610. That is, when the mounting base 510 is mounted on the base portion 610, the upright wall 502 divides the entire base portion 610 into two receiving portions, which are used to accommodate the control board 700 and other accessories respectively. In this way, the original position on the floor brush assembly for mounting the control board 700 is made available for other accessories, and the control board 700 is accommodated in the space below the original connecting portion. This achieves separation of control and execution, and maximizes the use of the floor brush space. The floor brush assembly can be configured with additional functional accessories to achieve versatility in floor brush functions.

[0077] In the description of this specification, the references to terms such as "one embodiment / mode," "some embodiments / modes," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment / mode or example is included in at least one embodiment / mode or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment / mode or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments / modes or examples. Furthermore, without contradiction, those skilled in the art can combine and integrate the different embodiments / modes or examples described in this specification, as well as the features of different embodiments / modes or examples.

[0078] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0079] Those skilled in the art should understand that the above examples are merely for illustrative purposes and are not intended to limit the scope of this disclosure. Other changes or modifications can be made based on the above disclosure by those skilled in the art, and such changes or modifications shall still fall within the scope of this disclosure.

Claims

1. A floor brush configured to be mounted to a main body of a surface cleaning device, the floor brush comprising: Comprising: a housing formed in a manner to divide a receiving space, the housing having a profile formed with a width and a length, the width being greater than the length; two rollers respectively disposed at the rear side of the housing outside in the width direction; and a control substrate configured to control at least an accessory on the floor brush; wherein the receiving space has a first receiving portion receiving the control substrate; a second receiving portion adjacent to the first receiving portion in the length direction, receiving the accessory; the first receiving portion is located behind the second receiving portion and between the two rollers.

2. The floor brush of claim 1 wherein, Both of the two rollers have an axis of rotation, and the axis of rotation passes through the first receiving portion.

3. The floor brush of claim 1 wherein, The floor brush includes a connecting portion configured to pivotably connect the housing to the main body of the surface cleaning device; the first receiving portion is located below the connecting portion.

4. The floor brush of claim 1 wherein, The first receiving portion is configured to be hermetically formed by a receiving housing.

5. The floor brush of claim 4 wherein, The receiving housing is configured to form part of the outer surface of the housing.

6. The floor brush of claim 4 wherein, The receiving housing is provided with a wire hole configured to allow the connecting line of the control substrate and the accessory to pass through.

7. The floor brush of claim 1 wherein, The accessory includes: a motor for providing rotational power to the agitator of the floor brush; a portion of the connecting line connecting the motor and the control substrate; a pump for providing cleaning liquid to the agitator of the floor brush; a portion of the connecting line connecting the pump and the control substrate; and a liquid line connected to the pump.

8. The floor brush of claim 1 wherein, The accessory includes: an edge agitator located on at least one side of the floor brush in the width direction; a second motor for providing rotational power to the edge agitator of the floor brush; a connecting line connecting the second motor and the control substrate.

9. The floor brush of claim 1 wherein, Two third motors are included, respectively driving the two rollers, and the two third motors are respectively located on both sides of the second receiving portion in the width direction.

10. A surface cleaning apparatus characterized by, Comprising: a main body portion; a removable dirt collection tank located on the main body portion; a floor brush as claimed in any one of claims 1-9, configured to be pivotably connected to the main body.

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