Floor brush of cleaning equipment, cleaning equipment and cleaning system
By incorporating an adjustable-angle scraper and a self-cleaning function into the floor brush of the cleaning equipment, the problems of unadjustable scraper blades and wear have been solved, resulting in more efficient cleaning and a longer service life.
Patent Information
- Application Number
- CN202422634545.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-30
- Publication Date
- 2025-11-11
- Estimated Expiration
- 2034-10-30
AI Technical Summary
Existing cleaning equipment floor brushes cannot be angled, affecting their adaptability and cleaning effectiveness in different cleaning environments. Furthermore, the self-cleaning function cannot effectively clean and adjust the brushes, leading to wear or damage and impacting the lifespan and effectiveness of the cleaning equipment.
An adjustable-angle scraper was designed. The rotation angle of the scraper can be adjusted through control components and drive components to adapt to different cleaning conditions. The scraper can also be effectively cleaned during the self-cleaning process, thus extending its service life.
It improves the cleaning adaptability and efficiency of cleaning equipment in different environments, extends the service life of scrapers, reduces wear and failure rate, and enhances user experience and equipment performance.
Smart Images
Figure CN223529373U_ABST
Abstract
Description
Technical Field
[0001] This disclosure relates to the field of cleaning equipment technology, and more specifically, to a floor brush, cleaning equipment, and cleaning system for a cleaning device. Background Technology
[0002] The field of cleaning equipment technology encompasses devices including, but not limited to, vacuum cleaners, robotic vacuum cleaners, and floor scrubbers. These devices clean floors mechanically or in combination with chemical methods to maintain a clean and hygienic environment. The field of mechanical design involves the design and manufacture of various mechanical devices, including optimizing mechanical structures to improve their performance and lifespan. The field of household appliances covers a wide range of small appliances used in daily household life, including cleaning equipment.
[0003] Existing cleaning equipment, such as floor scrubbers, typically uses rotating brushes to clean floors. These brushes have squeegees to remove dirt and moisture. Currently, the rear squeegee on the brushes of floor scrubbers is fixed and cannot be adjusted, limiting its adaptability and cleaning effectiveness in different cleaning environments. Furthermore, existing self-cleaning functions usually only clean the brush itself, failing to effectively clean and adjust the rear squeegee. This can lead to gradual wear or damage to the rear squeegee during use, affecting the cleaning performance and lifespan of the floor scrubber. Therefore, a new technological solution is needed to address these issues. Utility Model Content
[0004] The purpose of this disclosure is to address the technical problems in the related art by providing a floor brush, a cleaning device, and a cleaning system to solve at least one of the aforementioned technical problems. The specific solution is as follows:
[0005] This application embodiment provides a floor brush for a cleaning device, including...
[0006] The base has a suction port for sucking up dirt from the surface to be cleaned;
[0007] The roller brush is rotatably connected to the base;
[0008] A support wheel is disposed on the base near the roller brush;
[0009] A roller is disposed on the side of the support wheel away from the brush.
[0010] A control component is disposed on the side of the brush near the roller. The control component includes a scraper, a drive component, and a controller. The scraper consists of a support part and a contact part. The controller is connected to the scraper through the drive component. The controller controls the rotation angle of the scraper according to different working conditions.
[0011] In some embodiments, in response to the cleaning device moving in a first direction, the controller controls the rotation angle of the scraper to make it come into close contact with the surface to be cleaned;
[0012] In response to the cleaning device moving in the second direction, the controller controls the rotation angle of the scraper so that it has a preset distance from the surface to be cleaned, the preset distance being 2mm-5mm.
[0013] In some embodiments, in response to the cleaning device cleaning in a powerful mode, the controller controls the rotation angle of the scraper to make it in close contact with the surface to be cleaned;
[0014] In response to the cleaning device cleaning in economy mode, the controller controls the rotation angle of the scraper to maintain a preset distance from the surface to be cleaned.
[0015] In some embodiments, in response to the cleaning device performing self-cleaning, the controller controls the rotation angle of the scraper so that it contacts at least the outer contour surface of the roller brush; or
[0016] In response to the cleaning device performing self-cleaning, the controller controls the rotation angle of the scraper so that the position where it contacts the roller brush is within the outer contour of the roller brush.
[0017] In some embodiments, the driving component includes:
[0018] A motor with an output shaft for providing driving force for forward and / or reverse rotation;
[0019] A connector is connected to the scraper, and the connector drives the scraper to move within a preset angle under the drive of the motor.
[0020] In some embodiments, the driver component further includes:
[0021] The encoder, connected to the output shaft of the motor, is used to record the rotation angle of the output shaft.
[0022] In some embodiments, the rotation angle of the output shaft is 0-30 degrees.
[0023] In some embodiments, the driver component further includes:
[0024] The drive gear is connected to the output shaft of the motor;
[0025] The driven gear meshes with the driving gear and drives the connecting member to rotate.
[0026] In some embodiments, the angle between the scraper and the surface to be cleaned when they are in close contact is 80-100 degrees.
[0027] This disclosure provides a cleaning device, including a floor brush as described in any of the preceding embodiments.
[0028] This disclosure provides a cleaning system, including the cleaning device described above and a base or station that cooperates with it.
[0029] Compared with related technologies, the above-described solutions of this disclosure have at least the following beneficial effects:
[0030] The floor brush and cleaning system of the cleaning equipment disclosed herein feature an adjustable scraper angle. By incorporating an adjustable control component on the scraper, the scraper angle can be adjusted within a wide range to meet the application requirements of the scraper under different working conditions. Furthermore, in the self-cleaning function of the cleaning equipment, the scraper is brought into close contact with the roller brush to achieve self-cleaning, thereby improving the cleaning effect of the rear scraper.
[0031] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Attached Figure Description
[0032] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure. It is obvious that the drawings described below are merely some embodiments of this disclosure, and those skilled in the art can obtain other drawings based on these drawings without any inventive effort. In the drawings:
[0033] Figure 1 This is a schematic diagram of the overall structure of a floor brush for a cleaning device, according to an exemplary embodiment.
[0034] Figure 2 This is a schematic diagram of the self-cleaning state structure of a floor brush of a cleaning device according to an exemplary embodiment.
[0035] Figure 3 This is a partial structural schematic diagram illustrating the contact state between the scraper and the roller brush according to an exemplary embodiment.
[0036] Figure 4 This is a partial structural schematic diagram of the scraper and drive assembly of a floor brush for a cleaning device, according to an exemplary embodiment.
[0037] Figure 5 This is a flowchart illustrating a control method for a floor brush of a cleaning device according to an exemplary embodiment.
[0038] Figure label:
[0039] The cleaning equipment includes a floor brush 100, a housing 110, a roller brush 120, a scraper 130, a support part 131, a fitting part 132, a drive assembly 140, a motor 141, an output shaft 1411, a connector 142, a connecting shaft 1421, a connecting rod 1422, a connecting plate 1423, an encoder 143, a gear set 144, a drive gear 1441, a driven gear 1442, a roller 150, a base 160, a suction port 161, a base plate 162, and a support wheel 170. Detailed Implementation
[0040] To make the objectives, technical solutions, and advantages of this disclosure clearer, the disclosure will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this disclosure, and not all of them. Based on the embodiments of this disclosure, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this disclosure.
[0041] The terminology used in the embodiments of this disclosure is for the purpose of describing particular embodiments only and is not intended to limit the disclosure. The singular forms “a,” “the,” and “the” as used in the embodiments of this disclosure and the appended claims are also intended to include the plural forms, unless the context clearly indicates otherwise; “multiple” generally includes at least two, and other quantifiers are similarly intended.
[0042] It should be understood that although the terms first, second, third, etc., may be used to describe embodiments of this disclosure, these descriptions should not be limited to these terms. These terms are only used to distinguish the described objects. For example, first may also be referred to as second without departing from the scope of embodiments of this disclosure, and similarly, second may also be referred to as first. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0043] In the description of this disclosure, it should be noted that, unless otherwise expressly specified and limited, the terms "connected" or "linked" should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral connection; it can refer to a mechanical connection or an electrical connection; it can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0044] It should also be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that an article or device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such an article or device. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the article or device that includes said element.
[0045] The optional embodiments of this disclosure are described in detail below with reference to the accompanying drawings.
[0046] To more clearly describe the behavior of the floor brushes in cleaning equipment, such as Figure 1 As shown, the cleaning equipment floor brush is defined by the following directions: It travels along three mutually perpendicular axes: the horizontal axis Y, the front-to-back axis X, and the central vertical axis Z. The direction along the front-to-back axis X is labeled "backward," and the opposite direction is labeled "forward." The direction along the horizontal axis Y is the "right side" of the cleaning equipment floor brush, and the opposite direction is the "left side." The vertical axis Z extends upwards along the bottom surface of the cleaning equipment floor brush; the direction along the vertical axis Z is the "top" side, and the opposite direction is the "bottom."
[0047] like Figure 1As shown in the illustration, this application provides a floor brush 100 for cleaning equipment, such as a floor scrubber. The floor brush 100 is used to clean a surface (e.g., a floor) manually or automatically. The floor brush 100 includes a housing 110, a roller brush 120, a scraper 130, a drive assembly 140, a roller 150, a base 160, and a support wheel 170. The roller brush 120, scraper 130, drive assembly 140, roller 150, and support wheel 170 are mounted on the base 160. The housing 110 is fastened to the base 160. The support wheel 170 is located on the side of the base 160 closest to the roller brush 120, and the roller 150 is located on the side of the support wheel 170 furthest from the roller brush 120. The base 160 has a suction port 161, through which dirt from the surface to be cleaned is sucked up. Under the action of an external power source, the dirt entering through the suction port 161 is sucked into a wastewater tank through a suction pipe. A roller brush 120 is rotatably connected to the front end of the base 160; the roller brush 120 is driven to rotate by a roller brush drive mechanism to clean the surface to be cleaned. The roller brush 120 typically has a rigid shaft and a soft brush or cloth for dry or wet cleaning of the surface to be cleaned. The control assembly consists of a scraper 130, a drive assembly 140, and a controller (not shown). The control assembly is located on the side of the roller brush near the roller. The control assembly can adjust the angle of the scraper 130. The scraper 130 is movably connected to the base 160. The controller is connected to the scraper 130 through the drive assembly 140. The controller controls the rotation angle of the scraper 130 according to different working conditions. The scraper 130 is made of replaceable materials such as metal, alloy, or hard plastic. The end of the scraper is made of soft rubber to facilitate contact with the surface to be cleaned and to adjust the pressure on the surface to be cleaned. By installing a drive assembly 140 and a controller on the scraper 130 of the cleaning equipment's floor brush, the angle of the scraper 130 can be adjusted within a wide range. This allows for precise adjustment of the downward pressure of the scraper 130 under different working conditions, thereby improving the cleaning effect of the cleaning equipment. The control method for the downward pressure of the scraper 130 under different working conditions can be switched manually or set to automatic control; there is no limitation on this. Furthermore, during the self-cleaning process, by controlling the movement of the cleaning equipment and the spraying of the cleaning fluid, the scraper 130 can be effectively cleaned and adjusted, thereby extending the service life of the scraper 130, maintaining the cleaning effect of the cleaning equipment, and improving the efficiency and user experience of the cleaning equipment.
[0048] In some embodiments, in response to the cleaning device moving in a first direction, the first direction being forward, when the cleaning device moves forward, the roller brush 120 cleans the dirt on the surface to be cleaned by rotating, and the controller controls the rotation angle of the scraper 130 so that it presses down and makes close contact with the surface to be cleaned. At this time, the close contact can be a completely seamless contact or a roughly seamless contact when the surface to be cleaned is uneven. When the surface to be cleaned is a soft surface (e.g., carpet), it can also be an embedded contact. At this time, a relatively enclosed space is formed between the roller brush 120, the surface to be cleaned, and the scraper 130. The suction port 161 located on the upper side of the scraper 130 can powerfully suck up the dirt in the relatively enclosed space through the gap between the scraper 130 and the roller brush 120. Because the space is relatively enclosed, it is easier to form a negative pressure, which facilitates the cleaning of the relatively enclosed space and improves the cleaning efficiency of the cleaning device.
[0049] In some embodiments, such as Figure 1 As shown, the included angle A when the scraper 130 is in close contact with the surface to be cleaned is 80-100 degrees, for example, it can be 90 degrees, in order to improve the scraping effect.
[0050] In some embodiments, in response to the cleaning device moving in a second direction, which is backward, the controller controls the rotation angle of the scraper 130 to reduce or eliminate its downward pressure, ultimately creating a preset distance of 2mm-5mm between the end of the scraper 130 and the surface to be cleaned. Reducing the downward pressure between the end of the scraper 130 and the surface to be cleaned, for example, to 5N-25N, reduces the resistance when the cleaning device retracts, and also reduces friction or damage to the scraper 130. At this time, a certain distance remains between the scraper 130 and the roller brush 120, for example, a minimum distance of 2mm-5mm, preventing scraping.
[0051] In some embodiments, in response to the cleaning device cleaning in a powerful mode, the controller controls the rotation angle of the scraper 130 to ensure close contact with the surface to be cleaned. When performing a cleaning task, the cleaning device can select either a powerful mode or an economy mode based on the degree of dirt on the surface. In powerful mode, the power source is enhanced, the rotation speed of the roller brush 120 is increased, and the suction power at the floor brush is also enhanced. At this time, the controller controls the rotation angle of the scraper 130 to press it down and ensure close contact with the surface to be cleaned, forming a relatively enclosed space between the roller brush 120, the surface to be cleaned, and the scraper 130. The suction port 161 located on the upper side of the scraper 130 can powerfully suck up dirt located in this relatively enclosed space through the gap between the scraper 130 and the roller brush 120. Because the space is relatively enclosed, it is easier to create negative pressure, facilitating the removal of dirt from the relatively enclosed space and thus improving the cleaning efficiency of the cleaning device.
[0052] In some embodiments, in response to the cleaning device cleaning in economy mode, the controller controls the rotation angle of the scraper 130 to maintain a preset distance from the surface to be cleaned. In economy mode, the power of the power source is reduced, the rotation speed of the roller brush 120 is reduced, energy consumption is reduced, and noise is reduced. At this time, the controller controls the rotation angle of the scraper 130 to reduce or eliminate downward pressure, ultimately ensuring that the end of the scraper 130 maintains a preset distance from the surface to be cleaned, or that the end of the scraper 130 just contacts the surface to be cleaned. This can reduce friction or damage to the scraper 130 and improve its service life.
[0053] In some embodiments, such as Figure 2 As shown, after the cleaning equipment finishes its work, it returns to the base station for self-cleaning. During self-cleaning, the roller brush 120 rotates at high speed while cleaning fluid is sprayed onto it to clean the dirt on its surface. Some systems also require drying the roller brush 120. At this time, the controller controls the rotation angle of the scraper 130 so that it at least contacts the outer contour surface of the roller brush 120; or, the controller controls the rotation angle of the scraper 130 so that its contact point with the roller brush 120 is within the outer contour of the roller brush 120, i.e., the scraper 130 makes excessive contact with the outer surface of the roller brush 120. While the roller brush 120 rotates for self-cleaning, the scraper 130 is also cleaned. During the self-cleaning process, by controlling the movement of the cleaning equipment and the spraying of the cleaning fluid, the scraper 130 can be effectively cleaned and adjusted, thereby extending its service life, maintaining the cleaning effect of the cleaning equipment, and improving the efficiency and user experience of the cleaning equipment.
[0054] In some embodiments, such as Figure 3 As shown, the drive assembly 140 includes a motor 141, a connector 142, an encoder 143, a gear set 144, etc., and is used to drive the scraper 130 to rotate within a preset angle. The motor 141 has a power output shaft 1411, which provides forward and / or reverse driving force under the control of the controller. One end of the connector 142 is connected to the output shaft 1411 of the motor 141, and the other end is connected to the scraper 130. The connector 142 drives the scraper 130 to move within the preset angle under the drive of the motor 141. The encoder 143 is connected to the output shaft 1411 of the motor 141. As the output shaft 1411 of the motor 141 rotates synchronously, the encoder 143 records the rotation angle of the output shaft 1411 and feeds it back to the controller, thereby enabling the controller to precisely control the rotation angle of the motor 141.
[0055] In some embodiments, the output shaft 1411 rotates at an angle of 0-30 degrees. It can stop at any angle within the 0-30 degree range, thereby allowing the scraper 130 to be hovered at any angle within the 0-30 degree range. This angle range can be adjusted as needed and is not limited thereto.
[0056] In some embodiments, such as Figure 4 As shown, the gear set 144 further includes a driving gear 1441 and a driven gear 1442. The driving gear 1441 is connected to the output shaft 1411 of the motor and provides active rotational force under the drive of the output shaft 1411. The driven gear 1442 meshes with the driving gear 1441 and drives the connecting member 142 to rotate. The driven gear 1442 can be a complete disc-shaped gear or a part of a disc-shaped gear. The connecting member 142 includes a connecting shaft 1421, which is fixedly connected to the driven gear 1442 and rotates within a preset angle range under the drive of the driven gear 1442. The connecting member 142 also includes a connecting rod 1422 and a connecting plate 1423. The connecting rod 1422 is coaxially fixedly connected to the connecting shaft 1421, and the connecting plate 1423 is disposed on the side of the connecting rod 1422 near the scraper 130. The connecting plate 1423 and the connecting rod 1422 are integrally formed. As the connecting rod 1422 rotates, the connecting plate 1423 rotates within a preset angle. For example... Figure 4 As shown, the base 160 includes a base plate 162, with two front support wheels 170 mounted on the base plate 162. The support wheels 170 maintain the stability of one side of the roller brush 120 of the cleaning equipment relative to the surface to be cleaned, facilitating precise control of the rotation angle of the scraper 130. This allows for precise control of the downward pressure of the scraper 130 or the preset distance between the scraper 130 and the surface to be cleaned. The base plate 162 includes a notch for accommodating a connecting plate 1423. When the connecting rod 1422 rotates the connecting plate 1423 upwards, the connecting plate 1423 rises from the notch in the base plate 162. When the connecting rod 1422 rotates the connecting plate 1423 downwards, the connecting plate 1423 returns to the notch in the base plate 162, approximately on the same plane as the base plate 162. Figure 4 As shown, the scraper 130 includes a support part 131 and a fitting part 132. One end of the support part 131 is fixedly connected to the connecting plate 1423, and the other end is detachably connected to the fitting part 132. The connecting plate 1423 drives the fitting part 132 to rotate through the support part 131. The connecting plate 1423 and the support part 131 can be an integral structure or a separate structure.
[0057] This application also provides a method for controlling the floor brush of a cleaning device, such as... Figure 5 As shown, the method includes the following steps:
[0058] Step S102: Obtain the status information of the floor brush of the cleaning equipment, wherein the status information includes the cleaning mode and the motion status;
[0059] Step S104: Obtain the position information of the scraper;
[0060] Step S106: Based on the status information of the floor brush of the cleaning equipment and the position information of the scraper, adjust the scraper to a preset position so that it matches the status information of the floor brush of the cleaning equipment.
[0061] In some embodiments, in step S102, the cleaning mode includes a powerful mode, an economical mode, and a self-cleaning mode; the movement state includes movement along a first direction and movement along a second direction.
[0062] In some embodiments, step S106 includes, in response to the cleaning device moving in a first direction, the controller controlling the rotation angle of the scraper to make it come into close contact with the surface to be cleaned.
[0063] In some embodiments, step S106 includes, in response to the cleaning device moving in a second direction, the controller controlling the rotation angle of the scraper to have a preset distance from the surface to be cleaned.
[0064] In some embodiments, step S106 includes, in response to the cleaning device cleaning in a powerful mode, the controller controls the rotation angle of the scraper to make it in close contact with the surface to be cleaned.
[0065] In some embodiments, step S106 includes, in response to the cleaning device cleaning in economy mode, the controller controls the rotation angle of the scraper to have a preset interval with the surface to be cleaned.
[0066] In some embodiments, step S106 includes, in response to the cleaning device performing self-cleaning, the controller controlling the rotation angle of the scraper so that it contacts at least the outer contour surface of the roller brush.
[0067] In some embodiments, step S106 includes, in response to the cleaning device performing self-cleaning, the controller controls the rotation angle of the scraper so that the position where it contacts the roller brush is within the outer contour of the roller brush.
[0068] The scraper angle on the floor brush of the cleaning equipment described in this application can be precisely adjusted, allowing for adjustments to the downward pressure according to different cleaning environments, thereby improving water absorption efficiency and cleaning effect. This makes the cleaning equipment more adaptable to various floor materials and dirt conditions, thus improving its cleaning efficiency and service life.
[0069] The self-cleaning function of this application not only cleans the roller brush but also effectively cleans and adjusts the scraper. This prevents the scraper from gradually wearing down or becoming damaged during use, thereby extending the service life of the cleaning equipment and maintaining its cleaning effectiveness.
[0070] The optimized mechanical structure design of this application results in a tighter fit between the various components of the cleaning equipment, reducing wear and malfunctions. This not only improves the performance of the cleaning equipment but also extends its service life and reduces the cost of maintenance and parts replacement. Because the cleaning equipment of this application has higher cleaning efficiency, longer service life, and a more convenient self-cleaning function, it greatly enhances the user experience. Users no longer need to frequently manually clean the floor brush, saving time and effort, and also avoid frequent parts replacement, reducing operating costs.
[0071] This disclosure also provides a cleaning device, which includes a floor brush as described in any of the preceding embodiments. After completing a cleaning task, the floor brush returns to the cleaning base station to perform at least one of the following: self-cleaning, drying, water replenishment, or charging.
[0072] This disclosure also provides a cleaning system, including a base station and the cleaning equipment described above. After completing the cleaning task, the floor scrubber's brush returns to the cleaning base station to perform at least one of the following: self-cleaning, drying, water replenishment, or charging. The structure and principle of the base station are described in related technologies and will not be elaborated here.
[0073] The above embodiments are only used to illustrate the technical solutions of this disclosure, and are not intended to limit it. Although this disclosure has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this disclosure.
Claims
1. A floor brush for a cleaning device, characterized in that, include, The base has a suction port for sucking up dirt from the surface to be cleaned; The roller brush is rotatably connected to the base; A support wheel is disposed on the base near the roller brush; A roller is disposed on the side of the support wheel away from the brush. A control component is disposed on the side of the brush near the roller. The control component includes a scraper, a drive component, and a controller. The scraper consists of a support part and a contact part. The controller is connected to the scraper through the drive component. The controller controls the rotation angle of the scraper according to different working conditions.
2. The floor brush according to claim 1, characterized in that, In response to the cleaning device moving in a first direction, the controller controls the rotation angle of the scraper to make it come into close contact with the surface to be cleaned; In response to the cleaning device moving in the second direction, the controller controls the rotation angle of the scraper so that it has a preset distance from the surface to be cleaned, the preset distance being 2mm-5mm.
3. The floor brush according to claim 1, characterized in that, In response to the cleaning device cleaning in a powerful mode, the controller controls the rotation angle of the scraper to ensure close contact with the surface to be cleaned; In response to the cleaning device cleaning in economy mode, the controller controls the rotation angle of the scraper to maintain a preset distance from the surface to be cleaned.
4. The floor brush according to claim 1, characterized in that, In response to the self-cleaning function of the cleaning device, the controller controls the rotation angle of the scraper so that it contacts at least the outer contour surface of the roller brush; or In response to the cleaning device performing self-cleaning, the controller controls the rotation angle of the scraper so that the position where it contacts the roller brush is within the outer contour of the roller brush.
5. The floor brush according to claim 1, characterized in that, The driving component includes: A motor with an output shaft for providing driving force for forward and / or reverse rotation; A connector is connected to the scraper, and the connector drives the scraper to move within a preset angle under the drive of the motor.
6. The floor brush according to claim 5, characterized in that, The driving component also includes: The encoder, connected to the output shaft of the motor, is used to record the rotation angle of the output shaft.
7. The floor brush according to claim 6, characterized in that, The rotation angle of the output shaft is 0-30 degrees.
8. The floor brush according to claim 5, characterized in that, The driving component also includes: The drive gear is connected to the output shaft of the motor; The driven gear meshes with the driving gear and drives the connecting member to rotate.
9. The floor brush according to claim 2 or 3, characterized in that, The angle between the scraper and the surface to be cleaned is 80-100 degrees.
10. A cleaning device comprising a floor brush as claimed in any one of claims 1-9.
11. A cleaning system comprising the cleaning device as claimed in claim 10 and a base or station therewith.