Floor brush, cleaning equipment and cleaning system

Abstract

The utility model provides a floor brush, cleaning equipment and a cleaning system, the floor brush comprises a base, a rolling brush and a mechanical arm assembly, the mechanical arm assembly is provided with a scraping plate, and the scraping plate is arranged towards the rolling brush; the floor brush at least comprises an advancing state and a retreating state, and when the floor brush is in the advancing state, the mechanical arm assembly rotates and drives the scraper to make contact with the to-be-cleaned face with first pressure, so that the mechanical arm assembly pushes dirt on the to-be-cleaned face to the dirt suction opening; when the floor brush is in a retreating state, the mechanical arm assembly rotates and controls the scraping plate to make contact with the to-be-cleaned face through second pressure or control the scraping plate to be separated from the to-be-cleaned face; the second pressure is less than the first pressure. In this way, the scraping plate makes contact with the ground with large pressure in the advancing state, and it is ensured that dirt is effectively scraped and sucked in. And in the retreating state, the pressure of the mechanical arm assembly is reduced or the mechanical arm assembly is separated from the ground, repeated cleaning or water stain generation is avoided, water stain cleaning on the to-be-cleaned face can be achieved through one-time back-and-forth pushing and pulling, and meanwhile the mechanical arm assembly can be prevented from polluting the to-be-cleaned face again.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of cleaning, in particular to a floor brush, a cleaning device and a cleaning system. BACKGROUND

[0002] At present, more and more families use cleaning devices to clean the home, for example, using a floor brush of a scrubber, the scrubber usually has a rolling brush and a water distributor accessory, when the cleaning device is cleaning the ground, the dust and debris and other dirt are rolled up and collected by the rotation of the rolling brush, so as to clean the ground, when the scrubber is cleaning, the rolling brush or the ground is usually sprayed with water by using the water distributor, so as to clean by using the rolling brush. Therefore, there are many water stains on the cleaned ground. In order to solve the above problem, the spraying amount of the water distributor is usually controlled, but the effect is limited, and the water stain residual problem is still difficult to solve. CONTENT OF THE UTILITY MODEL

[0003] In order to solve at least one problem mentioned in the background art, the present application provides a floor brush, a cleaning device and a cleaning system, which aims to solve the technical problem that the cleaning device in the related art cannot solve the water stain residual problem on the ground by controlling the spraying amount of the water distributor.

[0004] In order to solve the above technical problem, in a first aspect, the present application provides a floor brush of a cleaning device, comprising,

[0005] a base, the base has a dirt suction port, the dirt suction port is used to suck dirt on a surface to be cleaned;

[0006] a rolling brush, which is rotationally connected to the base and located on one side of the dirt suction port;

[0007] a mechanical arm assembly, the mechanical arm assembly comprises a scraper, the scraper is rotationally connected to the base, and the mechanical arm assembly is located on the other side of the dirt suction port, and the scraper is at least partially arranged towards the rolling brush;

[0008] the floor brush at least comprises a forward state and a backward state,

[0009] when the floor brush is in the forward state, the mechanical arm assembly rotates and drives the scraper to contact the surface to be cleaned with a first pressure, so that the mechanical arm assembly pushes the dirt on the surface to be cleaned to the dirt suction port;

[0010] when the floor brush is in the backward state, the mechanical arm assembly rotates and controls the scraper to contact the surface to be cleaned with a second pressure or controls the scraper to be separated from the surface to be cleaned;

[0011] wherein the second pressure is less than the first pressure.

[0012] It should be understood that the water stain is left over due to the large amount of water sprayed by the water separator during cleaning, or the large area of water stain on the surface to be cleaned, causing the roller brush to be saturated and unable to absorb excess water stains, thereby causing water stain to remain. Two is caused by cross contamination of other components to cause water stain to remain.

[0013] For example, the prior art only has a fixed scraping strip, which does not have a rotating function, and cannot control the pressure applied to the surface to be cleaned according to the movement state of the floor brush. In order to still be able to achieve the scraping effect in the forward and backward states without the rotating function of the scraping strip, the pressure on the surface to be cleaned is set to be smaller in the forward state, so that most of the water stains cannot be scraped up. In the backward state, there is still a large contact area on the surface to be cleaned, so that the water stains scraped up on the scraping strip but not yet sucked away are repeatedly contaminated on the surface to be cleaned.

[0014] Therefore, in the process of pushing and pulling back and forth, the water stains left on the scraping strip will contaminate the surface to be cleaned back and forth, so that the water stains on the surface to be cleaned cannot be effectively solved, and even as the cleaning progresses, the water stains on the cleaned floor become more and more, which seriously reduces the cleaning effect.

[0015] The present patent provides a scheme for rotating and controlling the contact with the surface to be cleaned by using a mechanical arm assembly, and the mechanical arm assembly is arranged on the rear side of the roller brush. The mechanical arm assembly can be controlled according to the state of the floor brush. On this basis, the mechanical arm assembly is more flexible and intelligent than the fixed scraping strip in the prior art, thereby solving the problem of water stains on the surface to be cleaned. Specifically, in the forward state, the mechanical arm assembly will rotate and descend to contact the surface to be cleaned with a first pressure. In this way, the water stains or stains left during the forward movement of the roller brush can be pushed towards the roller brush by using the mechanical arm assembly.

[0016] The advantage of this scheme is that the suction port is arranged between the roller brush and the mechanical arm assembly. Therefore, the water stains can be sucked by the suction port in the first time by using the mechanical arm assembly to scrape forward, so that the water stains are cleaned in the first time and do not remain on the surface to be cleaned.

[0017] At the same time, the mechanical arm assembly is controlled to contact the surface to be cleaned with a first pressure, so that there is a certain pressure between the mechanical arm assembly and the surface to be cleaned, so that the water stains are more easily taken away by the mechanical arm assembly.

[0018] In addition, the floor brush also includes a backward state. In the backward state, the mechanical arm assembly is controlled to rotate so that the scraping plate contacts the surface to be cleaned with a second pressure or the scraping plate is controlled to be separated from the surface to be cleaned, wherein the second pressure is less than the first pressure.

[0019] By such an arrangement, the pressure of the mechanical arm assembly on the surface to be cleaned in the retraction state is less than that in the advancing state, which can prevent the mechanical arm assembly from recontaminating the surface to be cleaned with water stains or dirt remaining thereon in the retraction state.

[0020] By the above arrangement, the water stains on the surface to be cleaned can be removed by one push-pull, and the mechanical arm assembly can also be prevented from recontaminating the surface to be cleaned.

[0021] In a second aspect, the application also provides a floor brush of a cleaning device, comprising,

[0022] a base having a dirt suction opening for sucking dirt on the surface to be cleaned;

[0023] a rolling brush rotatably connected to the base and located on one side of the dirt suction opening;

[0024] a mechanical arm assembly comprising a scraper rotatably connected to the base and located on the other side of the dirt suction opening, the mechanical arm assembly being provided with the scraper, and the scraper being at least partially arranged towards the rolling brush;

[0025] the floor brush comprising at least an advancing state and a retraction state,

[0026] when the floor brush is in the advancing state, the mechanical arm assembly rotates and drives the scraper to contact the surface to be cleaned with a first pressure, so that the mechanical arm assembly pushes the dirt on the surface to be cleaned towards the dirt suction opening;

[0027] when the floor brush is in the retraction state, the mechanical arm assembly rotates and controls the scraper to contact the surface to be cleaned with a second pressure or controls the scraper to be separated from the surface to be cleaned;

[0028] wherein the second pressure is less than the first pressure, and the floor brush further has a self-cleaning state,

[0029] when the floor brush is in the self-cleaning state, the rolling brush rotates, and the mechanical arm assembly rotates and controls the scraper to contact the rolling brush.

[0030] In this way, the accumulation of dirt on the rolling brush and the mechanical arm assembly can be reduced, wear and damage caused by dirt accumulation can be avoided, and the service life of the floor brush and the cleaning device can be prolonged. In addition, the manual cleaning and maintenance requirements of the floor brush can be reduced, the maintenance cost can be reduced, and the degree of automation of the cleaning device can be improved.

[0031] In the above floor brush, optionally, the second pressure is greater than or equal to 0N, and the first pressure ranges from 3N to 20N.

[0032] In this way, by setting the second pressure greater than or equal to 0 N, the contact pressure of the mechanical arm assembly on the surface to be cleaned can be minimized or even completely separated when the mechanical arm assembly retreats. If the first pressure is less than 3 N, the pressure of the mechanical arm assembly on the surface to be cleaned is too small, and the mechanical arm assembly cannot effectively scrape the dirt and water stains. If the first pressure is greater than 20 N, the pressure of the mechanical arm assembly on the surface to be cleaned is too large, which may cause damage to the mechanical arm assembly, and the friction between the mechanical arm assembly and the surface to be cleaned is large, which affects the movement of the brush.

[0033] In the above-mentioned brush, optionally, a plane where the rotation center of the mechanical arm assembly is located is a reference plane, the reference plane is parallel to the surface to be cleaned, the mechanical arm assembly includes a fixed part located between the scraper and the rotation center, and the rotation angle range of the extension direction of the fixed part relative to the reference plane is [-15°, 15°].

[0034] And / or, the minimum distance range between the scraper and the rolling brush is [0, 6 mm].

[0035] In this way, if the angle of rotation of the mechanical arm assembly close to the rolling brush is too large, the mechanical arm assembly is too close to the rolling brush, which may affect the normal rotation of the rolling brush. If the angle of rotation of the mechanical arm assembly away from the rolling brush is too large, the mechanical arm assembly is away from the rolling brush and rotates towards the surface to be cleaned, the mechanical arm assembly is too close to the surface to be cleaned, which may affect the movement of the brush and the cleaning device. If the distance between the scraper and the rolling brush is too large, the mechanical arm assembly may not effectively scrape the dirt, which affects the cleaning effect. If the distance between the scraper and the rolling brush is too small, the mechanical arm assembly may interfere with the rolling brush, which may cause mechanical damage or wear.

[0036] In the above-mentioned brush, optionally, a plane where the rotation center of the mechanical arm assembly is located is a reference plane, the reference plane is parallel to the surface to be cleaned, the mechanical arm assembly includes a fixed part located between the scraper and the rotation center; in the advancing state,

[0037] The scraper and the surface to be cleaned are in surface contact.

[0038] And / or, the rotation angle range of the extension direction of the fixed part relative to the reference plane is [-15°, -5°).

[0039] In this way, it is ensured that the scraper and the surface to be cleaned are in surface contact. The surface contact can ensure that the mechanical arm assembly scrapes the dirt with a large pressure in the advancing state, while reducing the damage to the surface to be cleaned. The contact area between the scraper and the surface to be cleaned is avoided to be too large, which affects the movement of the brush.

[0040] In the floor brush, optionally, a plane where a rotation center of the mechanical arm assembly is located is set as a reference plane, the reference plane is parallel to the surface to be cleaned, the mechanical arm assembly comprises a fixing member located between the scraper and the rotation center; in the retreat state,

[0041] The minimum distance range between the scraper and the roller brush is [3mm, 6mm];

[0042] And / or, the rotation angle range of the extension direction of the fixing member relative to the reference plane is [-5°, 5°].

[0043] In this way, the excessive friction between the mechanical arm assembly and the ground can be effectively avoided, which helps to reduce the wear of the mechanical arm assembly and the ground, prolong the service life of the floor brush and the cleaning equipment. In addition, maintaining an appropriate distance can prevent the mechanical arm assembly from carrying water away from the ground during the retreat process, avoid water stains, and help to maintain the consistency and excellence of the cleaning effect; it can ensure the coordinated work between the mechanical arm assembly and the roller brush, avoid excessive friction and interference; in addition, it can optimize the transmission path of the dirt, ensure that the dirt is effectively pushed to the dirt suction port, and improve the cleaning efficiency; secondly, it can prevent interference between the mechanical arm assembly and the roller brush, avoid equipment jamming, and ensure the normal operation of the equipment.

[0044] In the floor brush, optionally, a plane where a rotation center of the mechanical arm assembly is located is set as a reference plane, the reference plane is parallel to the surface to be cleaned, the mechanical arm assembly comprises a fixing member located between the scraper and the rotation center;

[0045] In the self-cleaning state, the rotation angle range of the extension direction of the fixing member relative to the reference plane is (5°, 15°].

[0046] In this way, the scraper of the mechanical arm assembly can be ensured to maintain effective contact with the roller brush, which helps to effectively remove the dirt on the roller brush in the self-cleaning state; in addition, it can prevent excessive friction between the mechanical arm assembly and the roller brush, avoid damage to the cleaning equipment, and help to prolong the service life of the cleaning equipment; secondly, it can optimize the cleaning path of the mechanical arm assembly in the self-cleaning state, ensure that the dirt on the roller brush is effectively scraped off, and help to improve the cleaning efficiency and effect.

[0047] In the floor brush, optionally, in the self-cleaning state, the surface extension direction of the scraper intersects the tangent direction of the part of the roller brush contacting the scraper.

[0048] In this way, the contact area between the scraper and the surface of the roller brush can be increased, so that the dirt on the roller brush can be removed more effectively. In addition, the scraper can more thoroughly scrape the dirt on the surface of the roller brush, reduce dirt residue, help keep the roller brush clean, and improve the overall cleaning effect of the floor brush. Secondly, the self-cleaning path can be optimized to ensure that the dirt is effectively scraped off, which can improve the cleaning efficiency and reduce the self-cleaning time.

[0049] In the above-mentioned floor brush, optionally, in the self-cleaning state, the included angle between the surface extension direction of the scraper and the tangent direction of the part of the roller brush contacting the scraper ranges from [60°, 120°].

[0050] In this way, the relative movement between the mechanical arm assembly and the roller brush can ensure better cleaning effect, and prevent dirt from accumulating between the mechanical arm assembly and the roller brush, avoiding blockage and reducing cleaning efficiency. If the above-mentioned angle is too small or too large, the end surface of the mechanical arm assembly in the thickness direction is intersected with the roller brush, and the cleaning ability is poor.

[0051] In the above-mentioned floor brush, optionally, the mechanical arm assembly is an arc-shaped plate, the mechanical arm assembly protrudes in the direction towards the roller brush, and the scraper is an arc-shaped surface of the mechanical arm assembly.

[0052] And / or, the scraper is provided with a protrusion; in the advancing state, the protrusion is in contact with the surface to be cleaned.

[0053] In this way, the arc-shaped design can better fit the ground, and the arc-shaped plate can provide a larger contact area when in contact with the ground, thereby improving the scraping effect and reducing the cleaning dead angle caused by uneven ground. The arc-shaped surface can provide uniform pressure when in contact with the ground, adapt to the ups and downs of the ground, thereby improving the scraping effect and reducing the friction damage to the ground, and avoiding water stains. The protrusion structure can enhance the scraping effect and increase the friction, thereby more effectively removing stubborn dirt and debris on the ground. By providing a protrusion on the scraper, the friction between the scraper and the ground can be increased, so that the mechanical arm assembly can more effectively scrape off stubborn dirt and debris.

[0054] In the above-mentioned floor brush, optionally, the mechanical arm assembly comprises a fixed part and an elastic part, the elastic part is located on at least one side of the fixed part away from the base, and the fixed part is rotationally connected to the base by a rotating shaft.

[0055] In this way, the mechanical arm assembly can be flexibly switched between the advancing and retreating states. Through the rotation of the rotating shaft, the mechanical arm assembly can adjust the contact pressure with the ground, thereby realizing high-pressure cleaning in the advancing state and low-pressure or disengaging cleaning in the retreating state. This not only simplifies the structure, but also improves the cleaning efficiency and effect.

[0056] In the above ground brush, optionally, the elastic member comprises a first elastic part and a second elastic part, the first elastic part and the second elastic part are respectively located on opposite sides of the fixing member, the first elastic part is located on a side of the fixing member away from the base, and the second elastic part is located on a side of the fixing member facing the base.

[0057] In this way, through the above arrangement, the first elastic part and the second elastic part of the elastic member are respectively located on opposite sides of the fixing member, which can provide elastic support in different directions, thereby enhancing the flexibility and adaptability of the mechanical arm assembly. The first elastic part provides flexible support when the mechanical arm assembly contacts the ground, ensuring that the mechanical arm assembly closely fits the ground and improves the cleaning effect; the second elastic part provides additional elastic support when the mechanical arm assembly rotates, ensuring smooth transition of the mechanical arm assembly between the forward and backward states. This design not only improves the cleaning efficiency, but also reduces damage to the surface to be cleaned and the generation of water stains, prolonging the service life of the equipment.

[0058] In the above ground brush, optionally, a transmission member and a driving member are further included, two ends of the transmission member are respectively connected to the mechanical arm assembly and an output end of the driving member;

[0059] The transmission member is configured to rotate under the driving of the driving member to drive the mechanical arm assembly to rotate.

[0060] In this way, automatic control and precise pressure adjustment are realized; in addition, the structure of the ground brush can be simplified, the manufacturing and maintenance costs can be reduced, and the consistency and excellence of the cleaning effect can be ensured.

[0061] In the above ground brush, optionally, the transmission member comprises a cam, an output end of the cam is fixedly connected to the mechanical arm assembly, and an output end of the driving member is connected to an axis of the cam;

[0062] Alternatively, the transmission member comprises a gear set that meshes with each other, one end of the gear set is connected to the output end of the driving member, and the other end of the gear set is connected to the mechanical arm assembly through a fixing shaft with a shaft shoulder;

[0063] Alternatively, the transmission member comprises a rod-shaped mechanism, one end of the rod-shaped mechanism is connected to the output end of the driving member, and the other end of the rod-shaped mechanism is connected to the mechanical arm assembly.

[0064] Thus, the cam is used as a transmission member, which is simple and reliable, and does not need to use complex mechanical structures and control components, thereby reducing manufacturing and maintenance costs; the power is transmitted through the rotation of the gear, which has a high transmission effect. In this way, the power of the driving member can be efficiently transmitted to the mechanical arm assembly, so that the mechanical arm assembly can quickly respond and rotate accordingly, thereby improving the cleaning efficiency; the brush can transmit driving force through a simple rod-shaped mechanism, which reduces complex structures and improves the reliability of the cleaning equipment and the cleaning system. The rod-shaped mechanism has high rigidity and stability, and is suitable for driving the rotation of the mechanical arm assembly, which can improve the stability of the rotation of the mechanical arm assembly.

[0065] In a second aspect, the application further provides a cleaning equipment, comprising a cleaning main body such as the brush, wherein the cleaning main body is connected with the brush, and the cleaning main body is used for providing suction force for the brush.

[0066] Thus, the cleaning equipment has high cleaning efficiency, and water stains are not repeatedly generated during use of the cleaning equipment, so that the cleaning effect is good.

[0067] In a third aspect, the application further provides a cleaning system, comprising the cleaning equipment and a base station matched with the cleaning equipment.

[0068] Thus, the cleaning equipment and the base station form an intelligent cleaning system, which can realize automatic operation and maintenance, and improve user experience and cleaning efficiency.

[0069] The structure of the application and other application purposes and beneficial effects will be more obvious and easy to understand through the description of the preferred embodiments in combination with the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0070] In order to more clearly illustrate the technical solutions in the embodiments of the application or the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced. Obviously, the drawings in the following description are some embodiments of the application, and other drawings can be obtained by those skilled in the art without creative labor.

[0071] Figure 1 Part structure schematic diagram of the mop device provided by the prior art;

[0072] Figure 2 Cross-sectional view of the mop device provided by the prior art, which shows the state of pushing the mop device forward;

[0073] Figure 3 Schematic diagram of the three-dimensional structure of the brush provided by the embodiment of the application;

[0074] Figure 4A side view of the floor brush in the advancing state according to an embodiment of the present application is shown in FIG. 1A.

[0075] Figure 5 A side view of the floor brush in the advancing state according to an embodiment of the present application is shown in FIG. 1A. Figure 4 An enlarged view of the portion C in FIG. 1A.

[0076] Figure 6 A side view of the floor brush in the retreating state according to an embodiment of the present application is shown in FIG. 2A. Figure 4 An enlarged view of the portion C in FIG. 2A.

[0077] Figure 7 A side view of the floor brush in the self-cleaning state according to an embodiment of the present application is shown in FIG. 3A. Figure 4 An enlarged view of the portion C in FIG. 3A.

[0078] Figure 8 An exploded view of the floor brush according to an embodiment of the present application is shown in FIG. 4A.

[0079] Figure 9 A side view of the floor brush in the self-cleaning state according to an embodiment of the present application is shown in FIG. 3A. Figure 4 An enlarged view of the portion C in FIG. 3A.

[0080] BRIEF DESCRIPTION OF DRAWINGS

[0081] 1 - housing; 2 - rolling brush; 3 - sensing assembly; 4 - water wiping assembly; 5 - first water wiping assembly; 51 - lifting mechanism; 52 - front water wiper; 6 - second water wiping assembly; 61 - rear water wiper; 7 - dust suction assembly; 71 - first suction passage; 72 - second suction passage;

[0082] 10 - floor brush; A - surface to be cleaned; B - extension direction of the fixing member; D - direction of the rolling brush;

[0083] 100 - base; 101 - suction port;

[0084] 200 - rolling brush;

[0085] 300 - mechanical arm assembly; 301 - scraper; 302 - protrusion; 310 - fixing member; 311 - rotating shaft; 320 - elastic member; 321 - first elastic portion; 322 - second elastic portion;

[0086] 400 - transmission member; 410 - cam;

[0087] 500 - driving member.

[0088] The specific embodiments of the present application have been shown and described in the above-described drawings and text, and will be described in more detail hereinafter. These drawings and text are not intended to limit the scope of the concept of the present application in any way, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0089] In the related art, CN217659639U discloses a mop device and a scrubber, the mop device 100 includes a machine shell 1, a rolling brush 2, a sensing assembly 3, a water scraping assembly 4, a dust suction assembly 7 and a control assembly. The water scraping assembly 4 includes a first water scraping assembly 5 and a second water scraping assembly 6 that work alternately. As shown in Figure 1 and Figure 2 The first water scraping assembly 5 includes a lifting mechanism 51 and a front water scraping piece 52 arranged in front of the rolling brush 2, the front water scraping piece 52 is arranged on the machine shell 1 and can be lowered or raised relative to the machine shell 1 under the action of the lifting mechanism 51, and the second water scraping assembly 6 includes a rear water scraping piece 61 arranged in the machine shell 1 and located behind the rolling brush 2. The dust suction assembly 7 has a suction source and a first suction passage 71 and a second suction passage 72 communicating with the suction source, the first suction passage 71 is directed to the front water scraping piece 52, and the second suction passage 72 is directed to the rear water scraping piece 61, and an electric control valve is arranged at the connection of the first suction passage 71 and the second suction passage 72. When the rolling brush 2 rolls forward, the second suction passage 72 is opened and the first suction passage 71 is closed, so that the front water scraping piece 52 is raised relative to the machine shell 1, and the ground is cleaned by the rear water scraping piece 61, and when the rolling brush 2 rolls backward, the first suction passage 71 is opened and the second suction passage 72 is closed, so that the front water scraping piece 52 is lowered relative to the machine shell 1, and the ground is cleaned by the front water scraping piece 52, thereby achieving the purpose that there is no water stain on the ground no matter whether the mop device is pushed forward or pulled backward, so that a better cleaning effect is achieved.

[0090] However, in the above-mentioned scheme, the mop device needs two water scraping pieces in front and back to correspond to two working states of forward pushing and backward pulling, and the front water scraping piece needs to be connected with a control assembly for lifting and lowering, so that the structure of the mop device is relatively complex and the cost is relatively high.

[0091] In addition, it should be understood that the residual water stain is caused by two factors, one is that the amount of water sprayed by the water distributor during cleaning is too much, or the area of the water stain on the surface to be cleaned is too large, so that the rolling brush is saturated with liquid and cannot absorb the excess water stain, thereby causing the water stain to remain, and the other is that the water stain is caused by cross contamination of other components, for example, the fixed scraping strip in the prior art does not have a rotating function, and cannot control the pressure applied to the surface to be cleaned in different states according to the movement state of the brush, and in order to still achieve the water scraping effect in the forward and backward states under the condition that the scraping strip does not have a rotating function, the pressure applied to the surface to be cleaned in the forward state is set to be small, so that most of the water stain cannot be scraped, and in the backward state, the scraping strip still has a large contact area with the surface to be cleaned, so that the water stain scraped on the scraping strip but not yet sucked away is repeatedly contaminated on the surface to be cleaned, so that the water stain on the surface to be cleaned cannot be effectively solved, and even the water stain on the cleaned ground becomes more and more, which seriously reduces the cleaning effect.

[0092] To solve the above technical problems, the application provides a floor brush, a cleaning device and a cleaning system. The floor brush comprises a base, a suction port for sucking dirt on a surface to be cleaned, a rolling brush rotatably connected to the base and located on one side of the suction port, and a mechanical arm assembly rotatably connected to the base and located on the other side of the suction port. The mechanical arm assembly is provided with a scraper, and the scraper is at least partially arranged towards the rolling brush. The floor brush comprises at least a forward state and a backward state. When the floor brush is in the forward state, the mechanical arm assembly rotates and drives the scraper to contact the surface to be cleaned with a first pressure, so that the mechanical arm assembly pushes the dirt on the surface to be cleaned towards the suction port. When the floor brush is in the backward state, the mechanical arm assembly rotates and controls the scraper to contact the surface to be cleaned with a second pressure or controls the scraper to be separated from the surface to be cleaned. The second pressure is less than the first pressure.

[0093] The floor brush, the cleaning device and the cleaning system provided by the application can push the water stains or dirt left by the rolling brush forward during the forward movement of the rolling brush by the mechanical arm assembly in the forward state. The suction port is arranged between the rolling brush and the mechanical arm assembly, so that the water stains can be sucked by the suction port at the first time by forward scraping by the mechanical arm assembly, so as to clean the water stains at the first time and prevent the water stains from remaining on the surface to be cleaned. At the same time, the mechanical arm assembly contacts the surface to be cleaned with the first pressure, so that a certain pressure exists between the mechanical arm assembly and the surface to be cleaned, so that the water stains are more easily taken away by the mechanical arm assembly.

[0094] In addition, the floor brush further comprises a backward state. In the backward state, the mechanical arm assembly is controlled to rotate so that the scraper contacts the surface to be cleaned with a second pressure or controls the scraper to be separated from the surface to be cleaned. The second pressure is less than the first pressure. Through the above arrangement, the pressure of the mechanical arm assembly on the surface to be cleaned in the backward state of the floor brush is less than that in the forward state, so that the mechanical arm assembly can prevent the water stains or dirt left on the surface to be cleaned from being polluted again in the backward state.

[0095] The above arrangement can clean the water stains on the surface to be cleaned by one-way pushing and pulling, and can prevent the mechanical arm assembly from polluting the surface to be cleaned again.

[0096] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions in the embodiments of this application will be described in more detail below with reference to the accompanying drawings. In the drawings, the same or similar reference numerals denote the same or similar devices or devices having the same or similar functions throughout. The described embodiments are some device embodiments of this application, not all device embodiments. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application. The embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0097] In a first aspect, embodiments of this application provide a cleaning system (not shown in the figures), including a cleaning device and a base or base station that cooperates with it. The cleaning device can be placed on the base or base station.

[0098] Understandably, after cleaning the surface, the cleaning equipment can be placed on a base or base station for positioning, charging, self-cleaning, drying, or water supply and drainage. The base or base station has designated placement positions for the cleaning equipment, allowing for its accurate positioning. A charging port is also provided on the base or base station for charging the cleaning equipment. The base station may have inlet and outlet pipes for filling the clean water tank and draining the waste water tank. A drying device may be installed on the base or base station to dry the cleaned equipment.

[0099] It should be noted that the base 100 or base station generally needs to be fixed on the ground to support the operation of the cleaning equipment.

[0100] Reference Figure 3 , Figure 4 Secondly, this application embodiment also provides a cleaning device (not shown in the figure), which includes a cleaning body and a floor brush 10. The cleaning body is connected to the floor brush 10 and is used to provide suction for the floor brush 10.

[0101] It is understood that the floor brush 10 is suitable for performing cleaning actions on the surface A to be cleaned to achieve a cleaning effect. The surface A to be cleaned can be a floor or wall surface of varying roughness, or a carpet or rug of different lengths or types, or the surface of an object to be cleaned. This application does not specifically limit the type of surface A to be cleaned. The cleaning action can be vacuuming, mopping, or both simultaneously to ensure the cleaning efficiency of the cleaning unit.

[0102] Further, a cleaning main body can be connected with the floor brush 10 to provide suction force for the floor brush 10. It should be noted that the cleaning main body can also collect the dirt sucked by the floor brush 10, and can also filter, classify, and the like, the dirt. The specific functions of the cleaning main body are not limited by the embodiments of the present application, and are not limited to the above examples.

[0103] With reference to Figure 3 , Figure 4 , Figure 5 In a third aspect, the embodiments of the present application also provide a floor brush 10. The floor brush 10 includes a base 100, a roller brush 200, and a mechanical arm assembly 300. The specific structure is as follows:

[0104] With reference to Figure 4 , Figure 5 , Figure 7 The base 100 has a dirt suction port 101 for sucking dirt on the surface to be cleaned A. The sucked material can include liquid, and can also include hair, dust, and the like. It should be noted that the shape of the suction port can be any shape, such as a circle, a square, or a special shape, which can be arbitrarily changed according to requirements, and the embodiments of the present application will not be described here.

[0105] A dirt suction channel can be provided in the cleaning main body, which is in communication with the dirt suction port 101 of the floor brush 10, so that the external dirt can enter the dirt suction channel through the dirt suction port 101 of the floor brush 10 under the action of negative pressure, thereby completing the cleaning work.

[0106] The roller brush 200 is rotatably connected to the base 100 and located on one side of the dirt suction port 101.

[0107] It can be understood that the roller brush 200 can include bristles or brush pieces, which can sweep the dirt, dust, and debris on the ground into the dirt suction port 101 during rotation, thereby cleaning the surface to be cleaned A. The material of the roller brush 200 can be nylon, polyester, or other wear-resistant materials to ensure good durability and cleaning effect during use.

[0108] The dirt suction port 101 is usually located at the center or one side of the base 100, which can ensure that the dirt is immediately sucked into the dirt suction port 101 after being swept up, avoiding the dirt from scattering or remaining on the surface to be cleaned A, thereby improving the cleaning efficiency and effect.

[0109] The mechanical arm assembly 300 is rotatably connected to the base 100. The rotatable connection allows the mechanical arm assembly 300 to be adjusted according to the advancing or retreating state of the floor brush 10, so that the mechanical arm assembly 300 can contact the ground with a larger pressure in the advancing state to ensure effective scraping of the dirt, and the mechanical arm assembly 300 can contact the ground with a smaller pressure or be separated from the ground in the retreating state to avoid excessive friction and water stains.

[0110] In addition, the floor brush 10 only includes one mechanical arm assembly 300, which corresponds to the forward and backward states of the floor brush 10 by rotating, and the structure of the floor brush 10 is relatively simple, which can reduce the manufacturing and maintenance costs. Secondly, the existing floor brush 10 with a scraping strip can be directly modified by adding a rotating structure of the scraping strip to make it rotatable, thereby forming the current mechanical arm assembly 300 to form the above-mentioned floor brush 10.

[0111] With reference to Figures 4-7 The mechanical arm assembly 300 is located on the other side of the suction port 101, and the mechanical arm assembly 30 includes a scraping plate 301 rotatably arranged, which is at least partially arranged towards the roller brush 200.

[0112] By arranging the mechanical arm assembly 300 on the other side of the suction port 101, in the forward state, the mechanical arm assembly 300 can push the dirt to the suction port 101, and the roller brush 200 further cleans the ground and sucks the dirt into the suction port 101, ensuring the cleaning effect.

[0113] By arranging the scraping plate 301, the contact effect of the mechanical arm assembly 300 with the ground can be enhanced, the efficiency of scraping dirt can be improved, and it is ensured that the dirt can be pushed to the suction port 101 and sucked in.

[0114] The scraping plate 301 is arranged towards the roller brush 200, so that the mechanical arm assembly 300 can push the dirt to the roller brush 200 in the forward state, and the roller brush 200 further cleans the ground and sucks the dirt into the suction port 101.

[0115] Through the above arrangement, the mechanical arm assembly 300 can contact the ground with a larger pressure in the forward state, ensuring that the dirt is effectively scraped and sucked; in the backward state, the pressure of the mechanical arm assembly 300 is reduced or separated from the ground, avoiding repeated cleaning or water stains, ensuring the consistency and excellence of the cleaning effect. The overall structure is relatively simple, which reduces the manufacturing and maintenance costs, and at the same time improves the cleaning efficiency and effect.

[0116] The floor brush 10 at least includes a forward state and a backward state. The forward state means that the floor brush 10 is in a forward movement state, and the backward state means that the floor brush 10 is in a backward movement state. It can be understood that generally, the user is located at the rear side of the cleaning device, so when the floor brush 10 is in the forward state, the user can proceed while pushing the floor brush 10 to proceed; when the floor brush 10 is in the backward state, the user can retreat while pulling the floor brush 10 to proceed backward.

[0117] When the floor brush 10 is in the advancing state, the mechanical arm assembly 300 rotates and drives the squeegee 301 to contact the surface A to be cleaned at a first pressure, so that the mechanical arm assembly 300 pushes the dirt on the surface A to be cleaned to the suction port 101; when the floor brush 10 is in the retreating state, the mechanical arm assembly 300 rotates and controls the squeegee 301 to contact the surface A to be cleaned at a second pressure or controls the squeegee 301 to be separated from the surface A to be cleaned; wherein the second pressure is less than the first pressure.

[0118] In the advancing state, the mechanical arm assembly 300 rotates, descends and contacts the surface A to be cleaned at a larger first pressure, so that the floor brush can continue to push the water stains or dirt left by the forward movement of the roller brush 200 towards the roller brush 200 by the mechanical arm assembly 300 during the forward pushing.

[0119] The advantage of this scheme is that the suction port 101 is arranged between the roller brush 200 and the mechanical arm assembly 300, so that the water stains can be sucked by the suction port 101 for the first time by using the mechanical arm assembly 300 to scrape forward, so as to realize the first-time cleaning of the water stains without remaining on the surface A to be cleaned.

[0120] In addition, a certain pressure exists between the mechanical arm assembly 300 and the surface A to be cleaned, and a larger pressure ensures that the mechanical arm assembly 300 can effectively scrape and push the dirt to the suction port 101, so that the water stains are more easily taken away by the mechanical arm assembly 300, improving the cleaning efficiency.

[0121] In the retreating state, the mechanical arm assembly 300 rotates and contacts the surface A to be cleaned at a smaller second pressure, or the squeegee 301 is completely separated from the surface A to be cleaned. Through this arrangement, the pressure of the mechanical arm assembly 300 on the surface A to be cleaned in the retreating state of the floor brush 10 is smaller than that in the advancing state, which can prevent the mechanical arm assembly 300 from re-contaminating the surface A to be cleaned with the water stains or dirt left on it in the retreating state.

[0122] By setting different pressure values, a larger first pressure is applied in the advancing state to ensure effective cleaning, and a smaller second pressure or separation is applied in the retreating state to reduce friction and damage.

[0123] It can be understood that the specific values of the second pressure and the first pressure can be arbitrary, and the difference between the second pressure and the first pressure can also be arbitrary, and the embodiments of the present application do not limit the above examples.

[0124] It should be understood that the existing technology does not have the movement ability compared with the mechanical arm assembly provided in the present case, and cannot adjust the ground pressure of the scraper according to the water stain. In the process of back and forth pushing and pulling, the water stain remaining on the scraper will contaminate the to-be-cleaned surface A back and forth, so that the water stain remaining on the to-be-cleaned surface A cannot be effectively solved, and even the water stain on the cleaned ground becomes more and more, which seriously reduces the cleaning effect. In other words, through the above setting, the water stain cleaning of the to-be-cleaned surface A can be realized once back and forth, and the mechanical arm assembly 300 can also prevent the to-be-cleaned surface from being contaminated again.

[0125] In some embodiments, the second pressure is greater than or equal to 0N, and the first pressure ranges from 3N to 20N. Here, the pressure refers to the pressure exerted by the scraper 301 on the to-be-cleaned surface A.

[0126] In this way, by setting the second pressure to be greater than or equal to 0N, the contact pressure of the mechanical arm assembly 300 on the to-be-cleaned surface A can be minimized when retreating, or even completely separated; if the first pressure is less than 3N, the pressure of the mechanical arm assembly 300 on the to-be-cleaned surface A is too small, and cannot effectively scrape the dirt and water stain; if the first pressure is greater than 20N, the pressure of the mechanical arm assembly 300 on the to-be-cleaned surface A is too large, which may cause damage to the mechanical arm assembly 300, and on the other hand, the friction between the mechanical arm assembly 300 and the to-be-cleaned surface A is large, which affects the progress of the brush 10.

[0127] It can be understood that the first pressure can be any pressure value in the range of 3N to 20N, such as 3N, 5N, 8N, 10N, 12N, 15N, 16N, 19N, 20N, etc. The present application is not limited to the above examples.

[0128] Referring to Figures 4-7 As an optional implementation, the face where the center of rotation of the mechanical arm assembly 300 is located is set as a reference face, the reference face is parallel to the to-be-cleaned surface A, that is, the surface extension direction of the reference face is 0°, the direction in which the mechanical arm assembly 300 approaches the rotating direction of the brush 200 is the positive direction, and the direction in which the mechanical arm assembly 300 moves away from the rotating direction of the brush 200 is the negative direction.

[0129] It can be understood that during use, the brush 10 is usually located above the to-be-cleaned surface A, so the angle between the brush 10 and the to-be-cleaned surface A is a positive angle.

[0130] The mechanical arm assembly 300 includes a fixing member 310 located between the scraper 301 and the center of rotation. That is, the fixing member 310 is used to drive the scraper 301 to rotate relative to the center of rotation, and the fixing member 310 can be a rod-shaped or plate-shaped structure.

[0131] The rotation angle a of the extension direction B of the fixing member 310 relative to the reference surface ranges from -15° to 15°.

[0132] It should be noted that if the mechanical arm assembly 300 is too close to the rolling brush 200, the mechanical arm assembly 300 is too close to the rolling brush 200, which may affect the normal rotation of the rolling brush 200, and further affect the cleaning work of the floor brush 10 and the cleaning device.

[0133] If the mechanical arm assembly 300 is too far away from the rolling brush 200, the mechanical arm assembly 300 is too close to the cleaning surface A, which may affect the movement of the floor brush 10 and the cleaning device, and further affect the cleaning work of the floor brush 10 and the cleaning device.

[0134] It can be understood that the rotation angle a of the extension direction B of the fixing member 310 relative to the reference surface can be any angle in the range of -15° to 15°, such as -15°, -10°, 0°, 1°, 5°, 10°, 15°, etc. The embodiments of the present application are not limited to the above examples.

[0135] Referring to Figures 4-7 As an optional embodiment, the minimum distance L between the scraper 301 and the rolling brush 200 ranges from 0 to 6 mm. By limiting the minimum distance L between the scraper 301 and the rolling brush 200, it can be ensured that the mechanical arm assembly 300 can effectively scrape dirt during cleaning, and will not interfere with or damage the rolling brush 200.

[0136] It should be noted that if the distance L between the scraper 301 and the rolling brush 200 is too large, the mechanical arm assembly 300 may not be able to effectively scrape dirt, affecting the cleaning effect. If the distance L between the scraper 301 and the rolling brush 200 is too small, the mechanical arm assembly 300 may interfere with the rolling brush 200, causing mechanical damage or wear.

[0137] It can be understood that when the minimum distance L is 0 mm, the mechanical arm assembly 300 is in contact with the rolling brush 200, ensuring the maximum dirt scraping effect. When the minimum distance L is 6 mm, there is a gap between the mechanical arm assembly 300 and the rolling brush 200, avoiding mechanical interference and wear, while still being able to effectively scrape dirt, which can extend the service life of the cleaning device while ensuring the cleaning effect.

[0138] It can be understood that the minimum distance L between the scraper 301 and the rolling brush 200 can be any angle in the range of 0 to 6 mm, such as 0, 1 mm, 2 mm, 3 mm, 4 mm, 5 mm, 6 mm, etc. The embodiments of the present application are not limited to the above examples.

[0139] As an optional implementation, during the working process of the brush 10, the rotation angle a of the extension direction B of the fixing member 310 relative to the reference plane and the minimum distance between the scraper 301 and the roller brush 200 can be satisfied at the same time, that is, the rotation angle a of the extension direction B of the fixing member 310 relative to the reference plane ranges from -15° to 15° and the minimum distance between the scraper 301 and the roller brush 200 ranges from 0 to 6 mm.

[0140] It can be understood that when the rotation angle a of the extension direction B of the fixing member 310 relative to the reference plane is large, the mechanical arm assembly 300 is close to the roller brush 200, and at this time, the distance between the scraper 301 and the roller brush 200 is small; when the rotation angle a of the extension direction B of the fixing member 310 relative to the reference plane is small, the mechanical arm assembly 300 is close to the surface A to be cleaned, and at this time, the distance between the scraper 301 and the roller brush 200 is large.

[0141] As an optional implementation, in the advancing state, the scraper 301 is in surface contact with the surface A to be cleaned, that is, the scraper 301 has a large contact area with the surface A to be cleaned. The scraper 301 of the mechanical arm assembly 300 contacts the surface A to be cleaned with the first pressure in the advancing state, so as to ensure that the scraper 301 is in surface contact with the surface A to be cleaned. The surface contact can ensure that the mechanical arm assembly 300 scrapes the dirt with a large pressure in the advancing state, while reducing damage to the surface A to be cleaned.

[0142] It can be understood that in the advancing state, when the scraper 301 is in surface contact with the surface A to be cleaned, the distance between the scraper 301 and the surface A to be cleaned is 0 mm, and the distance L between the scraper 301 and the roller brush 200 is the maximum.

[0143] Referring to Figure 5 As an optional implementation, in the advancing state, the rotation angle a of the extension direction B of the fixing member 310 relative to the reference plane ranges from -15° to -5°, and this angle range ensures that the mechanical arm assembly 300 can contact the surface A to be cleaned with a large pressure in the advancing state, and pushes the dirt to the dirt suction port 101.

[0144] It can be understood that the rotation angle a of the extension direction B of the fixing member 310 relative to the reference plane can be any angle in the range of -15° to -5°, such as -15°, -14°, -13°, -12°, -11°, -10°, -9°, -8°, -7°, -6°, -5°, and the like, and the embodiments of the present application are not limited to the above examples.

[0145] It should be noted that in the advancing state, the rotation angle a of the extension direction B of the fixing member 310 relative to the reference surface and the surface contact between the scraper 301 and the surface to be cleaned A can be satisfied at the same time. That is, the distance between the scraper 301 and the surface to be cleaned A is 0 mm, and the angle between the rotation center of the mechanical arm assembly 300 and the scraper 301 can be satisfied at the same time.

[0146] It can be understood that in the advancing state, the mechanical arm assembly 300 drives the scraper 301 to contact the surface to be cleaned A with the first pressure, so that the scraper 301 and the surface to be cleaned A are in surface contact. In this process, the distance between the scraper 301 and the surface to be cleaned A is 0 mm, but the mechanical arm assembly 300 can continue to rotate. For example, when the rotation angle a of the extension direction B of the fixing member 310 relative to the reference surface is -4°, the scraper 301 of the mechanical arm assembly 300 and the surface to be cleaned A are in line contact; the mechanical arm assembly 300 continues to rotate, and when the rotation angle a of the extension direction B of the fixing member 310 relative to the reference surface is -8°, the scraper 301 of the mechanical arm assembly 300 is pressed against the surface to be cleaned A, the pressure of the mechanical arm assembly 300 on the surface to be cleaned A increases, and the scraper 301 and the surface to be cleaned A are in surface contact with a small area; the mechanical arm assembly 300 continues to rotate, and when the rotation angle a of the extension direction B of the fixing member 310 relative to the reference surface is -10°, the pressure of the mechanical arm assembly 300 on the surface to be cleaned A continues to increase, and the contact area between the scraper 301 and the surface to be cleaned A continues to increase; the mechanical arm assembly 300 continues to rotate, and when the rotation angle a of the extension direction B of the fixing member 310 relative to the reference surface is -15°, the pressure of the mechanical arm assembly 300 on the surface to be cleaned A continues to increase, and the contact area between the scraper 301 and the surface to be cleaned A continues to increase. The above is only an example, and the rotation angle a can be adjusted according to actual conditions.

[0147] It should be noted that in order to avoid the contact area between the scraper 301 and the surface to be cleaned A being too large, affecting the progress of the brush 10, the rotation angle a of the extension direction B of the fixing member 310 relative to the reference surface should not exceed -15°, such as -16°, 20°, etc.

[0148] It can be understood that the embodiments of the present application correspond one by one to the rotation angle a of the mechanical arm assembly 300 and the distance L between the scraper 301 and the roller brush 200 of the brush 10 in the advancing state, which can be adjusted according to actual conditions.

[0149] Referring to Figure 7As an optional implementation, in the retreat state, the minimum distance L between the scraper 301 and the roller brush 200 ranges from 3mm to 6mm, which can ensure the coordination between the mechanical arm assembly 300 and the roller brush 200, avoid excessive friction and interference, optimize the transmission path of the dirt, ensure that the dirt is effectively pushed to the dirt suction port 101, and improve the cleaning efficiency.

[0150] It can be understood that, in the retreat state, the minimum distance L between the scraper 301 and the roller brush 200 can be any angle in [3, 6mm], such as 3mm, 4mm, 5mm, 6mm, etc., which are not limited by the embodiments of the present application.

[0151] It should be noted that, in the retreat state, the minimum distance L between the scraper 301 and the roller brush 200 is in the above range, that is, the scraper 301 needs to be spaced apart from the roller brush 200 to avoid the dirt suction port 101 being blocked by the mechanical arm assembly 300, thereby affecting the dirt suction of the dirt suction port 101.

[0152] Referring to Figure 7 As an optional implementation, in the retreat state, the rotation angle a of the extension direction B of the fixing member 310 relative to the reference surface ranges from -5° to 5°.

[0153] In the retreat state, the rotation angle a of the mechanical arm assembly 300 is controlled in the range of [-5°, 5°], which can ensure that the mechanical arm assembly 300 maintains a proper contact angle with the ground, can prevent interference between the mechanical arm assembly 300 and the roller brush 200, ensures the normal operation of the equipment, helps to avoid equipment damage and cleaning effect decline, and avoids excessive friction and wear. At the same time, the cleaning path of the mechanical arm assembly 300 in the retreat state can be optimized, which can ensure that the dirt is effectively pushed to the dirt suction port 101, improve the cleaning efficiency and improve the cleaning effect.

[0154] It can be understood that the rotation angle a of the extension direction B of the fixing member 310 relative to the reference surface can be any angle in [-5°, 5°], such as -5°, -4°, -3°, -2°, -1°, 0°, 1°, 2°, 3°, 4°, 5°, etc., which are not limited by the embodiments of the present application.

[0155] It should be noted that, in the retreat state, the rotation angle a of the extension direction B of the fixing member 310 relative to the reference surface and the spaced arrangement between the scraper 301 and the roller brush 200 can be satisfied at the same time.

[0156] It can be understood that, in the retreat state, the mechanical arm assembly 300 drives the scraper 301 to contact the roller brush 200 at the second pressure or to separate the scraper 301 from the roller brush 200, and in this process, the mechanical arm assembly 300 can continue to rotate. For example, when the extension direction B of the fixing member 310 has a rotation angle a of -5° relative to the reference plane, the scraper 301 of the mechanical arm assembly 300 contacts the roller brush 200 at the first pressure, and the distance L between the mechanical arm assembly 300 and the roller brush 200 is 6 mm; the mechanical arm assembly 300 continues to rotate, and when the extension direction B of the fixing member 310 has a rotation angle a of 0° relative to the reference plane, the scraper 301 of the mechanical arm assembly 300 separates from the roller brush 200, the scraper 301 separates from the cleaning surface A, and the distance L between the mechanical arm assembly 300 and the roller brush 200 is reduced to 4.5 mm; the mechanical arm assembly 300 continues to rotate, and when the extension direction B of the fixing member 310 has a rotation angle a of 5° relative to the reference plane, the distance L between the mechanical arm assembly 300 and the roller brush 200 continues to decrease to 3 mm. The above is only an example, and the rotation angle a can be adjusted according to actual conditions.

[0157] It should be noted that, in the retreat state, in order to avoid that the distance L between the mechanical arm assembly 300 and the roller brush 200 is too small to affect the suction of the suction port 101, the rotation angle a of the extension direction B of the fixing member 310 relative to the reference plane should not exceed 5°, such as 6°, 10°, etc.

[0158] It can be understood that, in the retreat state, the mechanical arm assembly 300 of the ground brush 10 is adjusted according to the rotation angle a and the distance L between the scraper 301 and the roller brush 200, which can be adjusted according to actual conditions.

[0159] It should be noted that, the advance state and the retreat state of the ground brush 10 described above can be controlled by the user. For example, the user can switch the state by pressing the buttons corresponding to the two states, or directly control the ground brush 10 to advance or retreat to switch the state. The switching mode of the ground brush 10 between the advance state and the retreat state is not limited in the embodiments of the present application, and is not limited to the above examples.

[0160] It can be understood that, the user can also directly control the ground brush 10 to be in the advance state or the retreat state for a certain period of time, such as 1 min, 2 min, etc. The embodiments of the present application do not limit this, and are not limited to the above examples.

[0161] Referring to Figure 6 In a second aspect, the embodiments of the present application also provide a ground brush 10 of a cleaning device. The ground brush 10 includes a base 100, a roller brush 200, and a mechanical arm assembly 300. The base 100, the roller brush 200, and the mechanical arm assembly 300 are described above and will not be repeated here.

[0162] As an optional implementation, the floor brush 10 also has a self-cleaning state. When the floor brush 10 is in the self-cleaning state, the roller brush 200 rotates, the mechanical arm assembly 300 rotates and controls the scraper 301 to contact the roller brush 200.

[0163] It can be understood that in the self-cleaning state, the roller brush 200 and the mechanical arm assembly 300 can interact to remove the attached dirt, which helps to keep the roller brush 200 and the mechanical arm assembly 300 clean, and improves the working efficiency and cleaning effect of the floor brush 10.

[0164] It should be noted that the self-cleaning state can be achieved through regular self-cleaning, which can reduce the accumulation of dirt on the roller brush 200 and the mechanical arm assembly 300, avoid wear and damage caused by dirt accumulation, and help to prolong the service life of the floor brush 10 and the cleaning equipment. In addition, it can reduce the need for manual cleaning and maintenance of the floor brush 10, which helps to reduce maintenance costs and improve the degree of automation of the cleaning equipment.

[0165] It can be understood that in the self-cleaning state, when the scraper 301 contacts the roller brush 200, the distance L between the scraper 301 and the roller brush 200 is 0 mm, i.e. the distance between the scraper 301 and the surface A to be cleaned is the maximum.

[0166] It can be understood that, consistent with the foregoing forward state and backward state, the self-cleaning state can also be controlled by the user. Further, the floor brush 10 can also switch between any two of the forward state, the backward state and the self-cleaning state. For example, the user can switch the state by pressing the buttons corresponding to the three states; for example, the user can directly control the floor brush 10 to move forward or backward to switch between the forward state and the backward state by controlling the rotation of the mechanical arm assembly 300, and control the self-cleaning state by pressing the button. The embodiments of the present application do not limit the way the floor brush 10 switches between the forward state, the backward state and the self-cleaning state, nor are they limited to the above examples.

[0167] It can be understood that the user can also directly control the time for which the floor brush 10 is in the self-cleaning state, such as 1 min, 2 min, etc. The embodiments of the present application do not limit this, nor are they limited to the above examples.

[0168] Reference Figure 6As an optional implementation, in the self-cleaning state, the rotation angle a of the extension direction B of the fixing member 310 relative to the reference surface is in the range of (5°, 15°], which can ensure that the scraper 301 of the mechanical arm assembly 300 is in effective contact with the roller brush 200, and help to effectively remove the dirt on the roller brush 200 in the self-cleaning state; in addition, it can prevent excessive friction between the mechanical arm assembly 300 and the roller brush 200, avoid damage to the cleaning equipment, and help to prolong the service life of the cleaning equipment; secondly, it can optimize the cleaning path of the mechanical arm assembly 300 in the self-cleaning state, ensure that the dirt on the roller brush 200 is effectively scraped off, and help to improve the cleaning efficiency and effect.

[0169] It can be understood that the rotation angle a of the extension direction B of the fixing member 310 relative to the reference surface can be any angle in (5°, 15°], such as 6°, 7°, 8°, 9°, 10°, 11°, 12°, 13°, 14°, 15°, etc. The embodiments of the present application are not limited to the above examples.

[0170] Referring to Figure 9 As an optional implementation, in the self-cleaning state, the surface extension direction D of the scraper 301 intersects with the tangent direction E of the part of the roller brush 200 in contact with the scraper 301.

[0171] Through the above setting, the contact area between the scraper 301 and the surface of the roller brush 200 can be increased, so that the dirt on the roller brush 200 can be more effectively removed. In addition, the scraper 301 can more thoroughly scrape off the dirt on the surface of the roller brush 200, reduce dirt residues, help to maintain the cleanliness of the roller brush 200, and improve the overall cleaning effect of the floor brush 10; secondly, the self-cleaning path can be optimized to ensure that the dirt is effectively scraped off, which can improve the cleaning efficiency and reduce the self-cleaning time.

[0172] It should be noted that the included angle b between the surface extension direction D of the scraper 301 and the tangent direction E of the part of the roller brush 200 in contact with the scraper 301 can be any angle, such as 30°, 45°, 60°, 90°, 120°, 145°, 270°, etc. The embodiments of the present application are not limited to the above examples.

[0173] Referring to Figure 9 As an optional implementation, in the self-cleaning state, the included angle b between the surface extension direction D of the scraper 301 and the tangent direction E of the part of the roller brush 200 in contact with the scraper 301 is in the range of [60°, 120°].

[0174] Through the above arrangement, the relative movement between the mechanical arm assembly 300 and the roller brush 200 can ensure better cleaning effect, and can prevent dirt from accumulating between the mechanical arm assembly 300 and the roller brush 200, thereby avoiding blockage and reducing cleaning efficiency.

[0175] It can be understood that if the above angle is too small or too large, the end surface of the mechanical arm assembly 300 in the thickness direction is intersected with the roller brush 200, and the cleaning ability is poor.

[0176] It can be understood that the angle b between the surface extension direction D of the scraper 301 and the tangent direction E of the part of the roller brush 200 contacting the scraper 301 can be any angle in [60°, 120°], such as 60°, 70°, 80°, 90°, 100°, 110°, 120°, and the like. The embodiments of the present application are not limited to the above examples.

[0177] Referring to Figures 5-7 As an optional embodiment, the mechanical arm assembly 300 is an arc-shaped plate, the mechanical arm assembly 300 protrudes in the direction towards the roller brush 200, and the scraper 301 is an arc-shaped surface of the mechanical arm assembly 300.

[0178] It can be understood that the arc-shaped design can better fit the ground, and the arc-shaped plate can provide a larger contact area when contacting the ground, thereby improving the scraping effect and reducing the cleaning dead angle caused by uneven ground. In addition, the mechanical arm assembly 300 protrudes towards the roller brush 200, which can concentrate the dirt to the roller brush 200 in the advancing state, and the roller brush 200 can roll the dirt into the dirt suction port 101, thereby improving the cleaning efficiency. Secondly, the arc-shaped surface can provide uniform pressure when contacting the ground, adapt to the ground, thereby improving the scraping effect and reducing the friction damage to the ground, avoiding water stains.

[0179] In the advancing state, the mechanical arm assembly 300 contacts the ground with a first pressure, the arc-shaped surface fits the ground, pushes the dirt to the roller brush 200, and the roller brush 200 rolls the dirt into the dirt suction port 101. In the retreating state, the mechanical arm assembly 300 contacts the ground with a second pressure or is separated from the ground, thereby reducing the friction damage and avoiding water stains.

[0180] Referring to Figures 5-7 As an optional embodiment, the scraper 301 is provided with a protrusion 302.

[0181] It can be understood that the protrusion 302 structure can enhance the scraping effect and increase the friction, thereby more effectively removing stubborn dirt on the ground. By providing the protrusion 302 on the scraper 301, the friction between the scraper 301 and the ground can be increased, so that the mechanical arm assembly 300 can more effectively scrape off stubborn dirt and debris.

[0182] In the advancing state, the protrusions 302 are in contact with the surface A to be cleaned. That is, when the cleaning device is advancing, the mechanical arm assembly 300 is in contact with the ground at a first pressure, the protrusions 302 are in contact with the ground, the friction and scraping effects are enhanced, the dirt is pushed to the roller brush 200 and the dirt suction port 101, and the cleaning efficiency is improved.

[0183] It should be noted that the protrusions 302 can extend in the axial direction of the roller brush 200 of the mechanical arm assembly 300, so as to simultaneously scrape multiple positions of the roller brush 200.

[0184] With reference to Figure 8 As an optional embodiment, the mechanical arm assembly 300 comprises a fixed part 310 and an elastic part 320. That is, the fixed part 310 provides structural support, and the elastic part 320 has elastic properties.

[0185] Through the above arrangement, the mechanical arm assembly 300 has certain flexibility and adaptability, which can better fit the ground and ensure the cleaning effect. At the same time, the elastic part 320 can absorb part of the friction, reducing the wear between the mechanical arm assembly 300 and the ground.

[0186] The elastic part 320 is located at least on the side of the fixed part 310 away from the base 100, that is, the outer side of the mechanical arm assembly 300.

[0187] Through the above arrangement, the elastic part 320 can provide an additional pressure adjustment function when the mechanical arm assembly 300 is in contact with the ground. When the mechanical arm assembly 300 is in contact with the ground at a first pressure, the elastic part 320 can provide additional flexibility to ensure that the mechanical arm assembly 300 closely fits the ground and improves the cleaning effect; in the second pressure or disengaged state, the elastic part 320 can reduce the contact between the mechanical arm assembly 300 and the ground, avoiding excessive friction and water marks.

[0188] The fixed part 310 is rotatably connected to the base 100 through the pivot 311, so that the mechanical arm assembly 300 can be flexibly switched between the advancing and retreating states. Through the rotation of the pivot 311, the mechanical arm assembly 300 can adjust the contact pressure with the ground, thereby realizing high-pressure cleaning in the advancing state and low-pressure or disengaged cleaning in the retreating state. This not only simplifies the structure, but also improves the cleaning efficiency and effect.

[0189] It can be understood that the axis of the pivot 311 is the rotation center of the aforementioned mechanical arm assembly 300.

[0190] With reference to Figure 8As an optional implementation, the elastic member 320 includes a first elastic part 321 and a second elastic part 322, which are respectively located on opposite sides of the fixing member 310. The first elastic part 321 is located on the side of the fixing member 310 away from the base 100, and the second elastic part 322 is located on the side of the fixing member 310 toward the base 100.

[0191] Through the above arrangement, the first elastic part 321 and the second elastic part 322 of the elastic member 320 are respectively located on opposite sides of the fixing member 310, which can provide elastic support in different directions and enhance the flexibility and adaptability of the mechanical arm assembly 300. The first elastic part 321 provides flexible support when the mechanical arm assembly 300 contacts the ground, ensuring that the mechanical arm assembly 300 closely fits the ground and improves cleaning effect; the second elastic part 322 provides additional elastic support when the mechanical arm assembly 300 rotates, ensuring that the mechanical arm assembly 300 smoothly transitions between the forward and backward states. This design not only improves cleaning efficiency, but also reduces damage to the surface A to be cleaned and the generation of water stains, prolonging the service life of the equipment.

[0192] It should be noted that the materials of the first elastic part 321 and the second elastic part 322 can be the same or different. The present application does not limit whether the materials of the first elastic part 321 and the second elastic part 322 are the same.

[0193] It can be understood that the first elastic part 321 and the second elastic part 322 can be made of the same material to reduce costs.

[0194] The materials of the first elastic part 321 and the second elastic part 322 can be any material with elastic properties, such as soft glue, rubber, etc. The present application does not limit this and can be selected according to actual conditions.

[0195] It should be noted that in order to ensure the connection strength between the elastic member 320 and the fixing member 310, the first elastic part 321 and the second elastic part 322 can be an integral part, and a region for clamping the fixing member 310 can be formed between the first elastic part 321 and the second elastic part 322. The elastic member 320 can be connected with the fixing member 310 by its own elasticity to enhance the connection strength between the fixing member 310 and the elastic member 320.

[0196] Referring to Figure 8 As an optional implementation, the floor brush 10 further includes a transmission member 400 and a driving member 500. The two ends of the transmission member 400 are respectively connected to the mechanical arm assembly 300 and the output end of the driving member 500. The transmission member 400 is configured to rotate under the drive of the driving member 500 to drive the mechanical arm assembly 300 to rotate.

[0197] The transmission member 400 is used to transmit the power of the driving member 500, so that the mechanical arm assembly 300 can rotate. The driving member 500 is a power-providing assembly and can drive the transmission member 400 to rotate.

[0198] By driving the mechanical arm assembly 300 to rotate through the transmission member 400, automatic control and precise pressure adjustment can be realized. In addition, the structure of the floor brush 10 can be simplified, and the manufacturing and maintenance costs can be reduced.

[0199] In the advancing state, the mechanical arm assembly 300 contacts the ground with a large pressure, so as to ensure that the dirt is effectively scraped and sucked. In the retreating state, the mechanical arm assembly 300 is separated from the ground or has a reduced pressure, so as to avoid repeated cleaning or water stains.

[0200] It should be noted that when the axial dimension of the roller brush 200 is large, the number of the driving member 500 and the transmission member 400 can be two, so as to ensure the consistency of the rotation of the two ends of the mechanical arm assembly 300, and then ensure the rotation accuracy of the mechanical arm assembly 300.

[0201] It can be understood that the form of the transmission member 400 can be arbitrary, and the specific implementation mode of the transmission member 400 is not limited in the embodiments of the application, and is not limited to the following examples.

[0202] Reference Figure 8 In some embodiments, the transmission member 400 includes a cam 410, the output end of the cam 410 is fixedly connected with the mechanical arm assembly 300, and the output end of the driving member 500 is connected to the shaft center of the cam 410. The cam 410 can drive the mechanical arm assembly 300 to rotate correspondingly through the rotary motion under the driving of the driving member 500.

[0203] The cam 410 is used as the transmission member 400, which has a simple and reliable structure, does not need to use complex mechanical structures and control assemblies, reduces the manufacturing and maintenance costs, and improves the reliability and durability of the cleaning equipment.

[0204] In some embodiments, the transmission member 400 includes a gear set that is engaged with each other, one end of the gear set is connected with the output end of the driving member 500, and the other end of the gear set is connected with the mechanical arm assembly 300 through a fixed shaft with a shaft shoulder.

[0205] The gear set is composed of a plurality of gears that are engaged with each other, and the power is transmitted through the rotation of the gears, which has a high transmission effect. In this way, the power of the driving member 500 can be efficiently transmitted to the mechanical arm assembly 300, so that the mechanical arm assembly 300 can quickly respond and rotate correspondingly, and the cleaning efficiency is improved.

[0206] In some embodiments, the transmission member 400 comprises a rod-shaped mechanism, one end of which is connected to the output end of the driving member 500, and the other end of which is connected to the mechanical arm assembly 300.

[0207] The rod-shaped mechanism has the advantages of simple structure, low manufacturing cost, and high transmission efficiency, and therefore, the brush 10 can achieve transmission of driving force through a simple rod-shaped mechanism, reduce complex structure, and improve reliability of the cleaning device and the cleaning system.

[0208] The linear shape of the rod-shaped mechanism makes it have high rigidity and stability when transmitting driving force, and is suitable for driving rotation of the mechanical arm assembly 300, and can improve the stability of rotation of the mechanical arm assembly 300.

[0209] In the description of the embodiments of the present application, it should be understood that, unless specifically defined and limited otherwise, the terms "mount", "connect", "connection" should be understood in a broad sense, for example, can be fixed connection, can also be indirect connection through an intermediate medium, can be the communication of the devices in two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0210] The terms "upper", "lower", "front", "back", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise specified.

[0211] The terms "first", "second", "third", "fourth" and the like in the specification and claims of the present application and the above drawings are used to distinguish similar objects, and do not necessarily indicate a particular order or sequence. It should be understood that such data can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device including a series of steps or units does not necessarily limit to those steps or units clearly listed, but can include other steps or units not clearly listed or inherent to the process, method, product or device.

[0212] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to some or all of the device technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A floor brush for cleaning a device, characterized in that The base has a suction port for sucking dirt on the surface to be cleaned. The rolling brush is rotatably connected to the base and located on one side of the suction port. The mechanical arm assembly includes a squeegee rotatably connected to the base and located on the other side of the suction port, and the squeegee is at least partially arranged towards the rolling brush. The floor brush at least includes an advancing state and a retreating state, When the floor brush is in the advancing state, the mechanical arm assembly rotates and drives the squeegee to contact the surface to be cleaned with a first pressure, so that the mechanical arm assembly pushes the dirt on the surface to be cleaned towards the suction port. When the floor brush is in the retreating state, the mechanical arm assembly rotates and controls the squeegee to contact the surface to be cleaned with a second pressure or controls the squeegee to be separated from the surface to be cleaned. The second pressure is less than the first pressure. The base has a suction port for sucking dirt on the surface to be cleaned.

2. A floor brush for cleaning a device, characterized in that The rolling brush is rotatably connected to the base and located on one side of the suction port. The mechanical arm assembly includes a squeegee rotatably connected to the base and located on the other side of the suction port, and the squeegee is at least partially arranged towards the rolling brush. The floor brush at least includes an advancing state and a retreating state, When the floor brush is in the advancing state, the mechanical arm assembly rotates and drives the squeegee to contact the surface to be cleaned with a first pressure, so that the mechanical arm assembly pushes the dirt on the surface to be cleaned towards the suction port. When the floor brush is in the retreating state, the mechanical arm assembly rotates and controls the squeegee to contact the surface to be cleaned with a second pressure or controls the squeegee to be separated from the surface to be cleaned. The second pressure is less than the first pressure, and the floor brush further has a self-cleaning state, When the floor brush is in the self-cleaning state, the rolling brush rotates, and the mechanical arm assembly rotates and controls the squeegee to contact the rolling brush. The second pressure is greater than or equal to 0N, and the first pressure ranges from 3N to 20N. The face where the rotation center of the mechanical arm assembly is located is a reference face, the reference face is parallel to the surface to be cleaned, the mechanical arm assembly includes a fixing member located between the squeegee and the rotation center, and the extension direction of the fixing member has a rotation angle range of [-15°, 15°] relative to the reference face.

3. The floor brush of claim 1 or 2, wherein And / or, the minimum distance between the squeegee and the rolling brush ranges from 0 to 6mm.

4. The floor brush of claim 1 or 2, wherein The face where the rotation center of the mechanical arm assembly is located is a reference face, the reference face is parallel to the surface to be cleaned, the mechanical arm assembly includes a fixing member located between the squeegee and the rotation center; in the advancing state, The squeegee is in surface contact with the surface to be cleaned; 5. The floor brush of claim 1 or 2, wherein And / or, the extension direction of the fixing member has a rotation angle range of [-15°, -5°] relative to the reference face. The face where the rotation center of the mechanical arm assembly is located is a reference face, the reference face is parallel to the surface to be cleaned, the mechanical arm assembly includes a fixing member located between the squeegee and the rotation center; in the retreating state, ​ 6. The floor brush of claim 1 or 2, wherein ​ The minimum distance between the scraper and the rolling brush is in the range of [3mm, 6mm]; And / or, the rotation angle of the extension direction of the fixing member relative to the reference plane is in the range of [-5°, 5°].

7. The floor brush of claim 2 wherein, The rotation center of the mechanical arm assembly is located on a reference plane, which is parallel to the surface to be cleaned, and the mechanical arm assembly comprises a fixing member located between the scraper and the rotation center. In the self-cleaning state, the rotation angle of the extension direction of the fixing member relative to the reference plane is in the range of (5°, 15°].

8. The floor brush of claim 2 wherein, In the self-cleaning state, the surface extension direction of the scraper intersects the tangent direction of the part of the rolling brush that contacts the scraper.

9. The floor brush of claim 2 wherein, In the self-cleaning state, the included angle between the surface extension direction of the scraper and the tangent direction of the part of the rolling brush that contacts the scraper is in the range of [60°, 120°].

10. The floor brush of claim 1 or 2, wherein, The mechanical arm assembly is an arc-shaped plate, which protrudes in the direction towards the rolling brush, and the scraper is an arc-shaped surface of the mechanical arm assembly. And / or, the scraper is provided with a protrusion; in the advancing state, the protrusion contacts the surface to be cleaned.

11. The floor brush of claim 1 or 2, wherein, The mechanical arm assembly comprises a fixing member and an elastic member, the elastic member is located on at least one side of the fixing member away from the base, and the fixing member is rotationally connected to the base through a rotating shaft.

12. The floor brush of claim 11, wherein, The elastic member comprises a first elastic part and a second elastic part, the first elastic part and the second elastic part are located on opposite sides of the fixing member, the first elastic part is located on the side of the fixing member away from the base, and the second elastic part is located on the side of the fixing member towards the base.

13. The floor brush of claim 1 or 2, wherein, Further comprising a transmission member and a driving member, both ends of the transmission member are connected to the mechanical arm assembly and the output end of the driving member respectively; The transmission member is configured to rotate under the drive of the driving member to drive the mechanical arm assembly to rotate.

14. The floor brush of claim 13, wherein, The transmission member comprises a cam, the output end of the cam is fixedly connected to the mechanical arm assembly, and the output end of the driving member is connected to the axis of the cam; Alternatively, the transmission member comprises a gear set that meshes with each other, one end of the gear set is connected to the output end of the driving member, and the other end of the gear set is connected to the mechanical arm assembly through a fixed shaft with a shaft shoulder; Alternatively, the transmission member comprises a rod-shaped mechanism, one end of the rod-shaped mechanism is connected to the output end of the driving member, and the other end of the rod-shaped mechanism is connected to the mechanical arm assembly.

15. A cleaning apparatus, characterized by A cleaning device comprising a cleaning body as claimed in any one of claims 1-14, the cleaning body being connected to the floor brush, the cleaning body being configured to provide suction to the floor brush.

16. A cleaning system characterized by, A cleaning device as claimed in claim 15 and a base or docking station cooperating therewith.

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