Floor brush device and cleaning equipment

CN224699140UActive Publication Date: 2026-09-01ZHEJIANG SHAOXING SUPOR DOMESTIC ELECTRICAL APPLIANCE CO LTD
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Patent Information

Application Number
CN202521989197.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-15
Publication Date
2026-09-01
Estimated Expiration
2035-09-15

AI Technical Summary

Technical Problem

[0005]本申请提供一种地刷装置及清洁设备,以解决目前地刷在清洁地面时,滚轮在沿地面滚动过程中容易缠绕毛发纤维,且难以清理的技术问题

Benefits of technology

[0008] The floor brush device provided in this application sets the support roller in the roller cavity connected to the dust collection chamber, and designs the support roller with a concave surface structure, so that the hair fibers rolled up by the roller can gather in the concave part of the roller, and can be sucked from the roller cavity into the dust collection chamber by the negative pressure suction in the dust collection chamber, thus preventing the hair fibers from getting more and more tightly wrapped on the support roller.

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Abstract

This application relates to the field of cleaning product technology, and more particularly to a floor brush device and cleaning equipment. The floor brush device provided by this application includes a main body and a supporting roller; the main body has a suction chamber and a roller chamber; the suction chamber extends along the width direction of the floor brush device and is open towards the lower part of the main body; along the cleaning direction of the floor brush device, the roller chamber is located in front of the suction chamber; the supporting roller is rotatably disposed within the roller chamber; the surface of the supporting roller has a recessed portion, which is arranged circumferentially around the supporting roller; when the supporting roller contacts the surface to be cleaned, an airflow gap is formed between the recessed portion and the surface to be cleaned, allowing the hair fibers rolled up by the roller to gather towards the recessed portion of the roller and be sucked into the suction chamber from the roller chamber by the negative pressure suction in the suction chamber, preventing the hair fibers from becoming increasingly tightly wrapped on the supporting roller.
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Description

Technical Field

[0001] This application relates to the field of cleaning product technology, and more particularly to a floor brush device and cleaning equipment. Background Technology

[0002] A floor scrubber is a smart cleaning appliance that integrates functions such as vacuuming, mopping, washing, and self-cleaning. It is widely used for environmental cleaning in various indoor and outdoor scenarios, and can clean up dry and wet waste in one go, maintaining a clean and tidy living and working environment.

[0003] In related technologies, floor scrubbers typically include a floor brush and a main unit. The floor brush and main unit are connected. The floor brush moves on the ground and can suck up liquid stains and solid debris through suction ports, which are then transported to the main unit for storage via air ducts. The floor brush is usually equipped with rollers, which allow it to move on the ground.

[0004] However, when cleaning floors, current floor brushes tend to get tangled in hair fibers as the rollers roll along the floor, and these fibers are difficult to clean. Utility Model Content

[0005] This application provides a floor brush device and cleaning equipment to solve the technical problem that when floor brushes are used to clean floors, hair fibers are easily entangled in the rollers as they roll along the floor, and are difficult to clean.

[0006] Secondly, this application provides a floor brush device, which includes a device body and a support roller; the device body has a dust suction chamber and a roller chamber; the dust suction chamber extends along the width direction of the floor brush device and is open towards the lower part of the device body; along the cleaning direction of the floor brush device, the roller chamber is located in front of the dust suction chamber; the support roller is rotatably disposed in the roller chamber;

[0007] The surface of the support roller has a recessed portion, which is arranged circumferentially around the support roller; when the support roller contacts the surface to be cleaned, an airflow gap is formed between the recessed portion and the surface to be cleaned.

[0008] The floor brush device provided in this application sets the support roller in the roller cavity connected to the dust collection chamber, and designs the support roller with a concave surface structure, so that the hair fibers rolled up by the roller can gather in the concave part of the roller, and can be sucked from the roller cavity into the dust collection chamber by the negative pressure suction in the dust collection chamber, thus preventing the hair fibers from getting more and more tightly wrapped on the support roller.

[0009] In one possible implementation, the rolling direction of the support roller is consistent with the cleaning direction of the floor brush device; along the rolling direction of the support roller, the airflow gap connects the front and rear sides of the support roller.

[0010] With this configuration, as the support rollers roll along the ground, hair fibers and dust debris can pass through the airflow gaps and be sucked into the suction chamber, preventing them from getting tangled on the support rollers.

[0011] In one possible implementation, along the axial direction of the support roller, the diameters at both ends of the support roller are larger than the diameter at the middle position of the support roller.

[0012] With this configuration, when the support rollers pick up the hair fibers, the hair fibers can slide from both ends of the support rollers toward the middle as the support rollers rotate, preventing the hair fibers from getting more and more tightly wrapped at both ends of the support rollers.

[0013] In one possible implementation, the diameter of the support roller gradually decreases from both ends toward the middle.

[0014] This design improves the smoothness of hair fibers sliding into the depression.

[0015] In one possible implementation, in the radial cross-section of the support roller, the recess has a first arc segment and two second arc segments, the two second arc segments being connected to the two ends of the first arc segment respectively.

[0016] The first arc segment is recessed towards the axis of the supporting roller, while the second arc segment is protruding.

[0017] This design ensures a smooth transition from both ends to the middle of the recessed area, while also maintaining a certain contact area between the surface of the support roller and the ground, thus preventing excessive wear on the support roller.

[0018] In one possible implementation, the support roller includes a roller body and a rotating shaft, the rotating shaft being coaxially connected to the roller body; the rotating shaft protrudes from both ends of the roller body along its axial direction.

[0019] Along the width direction of the floor brush device, the two ends of the roller cavity are provided with slots, and the two ends of the rotating shaft are respectively inserted into the slots at both ends of the roller cavity.

[0020] This design ensures smooth rotation of the support rollers relative to the main body of the device while preventing the support rollers from detaching from the main body of the device.

[0021] In one possible implementation, the device body has a suction port that communicates with the dust collection chamber, and the suction port is located at the middle of the device body along the width direction of the floor brush device; the airflow flowing through the roller chamber enters the dust collection chamber and then flows to the suction port.

[0022] This design allows sucked-in hair and dust to be contained and gathered in the center of the suction chamber, improving cleaning efficiency.

[0023] In one possible implementation, there are two support rollers, with a roller cavity provided on each side near the width direction of the main body of the device, and the two support rollers are respectively disposed in the two roller cavities.

[0024] With this design, the hair fibers rolled up by the support rollers on both sides can be sucked into the suction chamber, and the roller chamber has a small volume, which allows the suction chamber to maintain a stable negative pressure suction.

[0025] In one possible implementation, the floor brush device further includes a rear support wheel, which is rotatably disposed from the main body of the device and is located on the rear side of the suction chamber along the cleaning direction of the floor brush device.

[0026] This design improves the support stability of the main body of the device.

[0027] Secondly, this application provides a cleaning device, which includes a device body and the aforementioned floor brush device, wherein the device body and the floor brush device are movably connected.

[0028] This application provides a floor brush device and cleaning equipment. The floor brush device includes a main body and a support roller. The main body has a suction chamber and a roller chamber. The suction chamber extends along the width of the floor brush device and is open towards the lower part of the main body. Along the cleaning direction of the floor brush device, the roller chamber is located in front of the suction chamber. The support roller is rotatably disposed in the roller chamber. The surface of the support roller has a recessed portion, which is arranged around the circumference of the support roller. When the support roller contacts the surface to be cleaned, an airflow gap is formed between the recessed portion and the surface to be cleaned, so that the hair fibers rolled up by the roller can gather in the recessed portion of the roller and can be sucked into the suction chamber from the roller chamber by the negative pressure suction in the suction chamber, thus preventing the hair fibers from getting more and more tightly wrapped on the support roller.

[0029] In addition to the technical problems solved by the embodiments of this application, the technical features constituting the technical solutions, and the beneficial effects brought about by the technical features of these technical solutions described above, other technical problems that can be solved by the floor brush device and cleaning equipment provided by this application, other technical features included in the technical solutions, and the beneficial effects brought about by these technical features will be further explained in detail in the specific embodiments. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0031] Figure 1 This is a bottom schematic diagram of the floor brush device provided in the embodiments of this application;

[0032] Figure 2 This is a schematic diagram of the structure of the cleaning equipment provided in the embodiments of this application;

[0033] Figure 3 This is a schematic diagram of the supporting rollers in the floor brush device provided in the embodiments of this application.

[0034] Explanation of reference numerals in the attached figures:

[0035] 100-Floor brush device; 101-Dust suction chamber; 102-Roller chamber; 103-Sewage suction port; 110-Main body of the device; 120-Support roller; 121-Recessed part; 1211-First arc segment; 1212-Second arc segment; 122-Roller body; 123-Rotating shaft; 130-Rear support wheel; 140-First scraper blade; 150-Second scraper blade; 160-Water spray module;

[0036] 200 - Main body of the equipment. Detailed Implementation

[0037] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, an indirect connection through an intermediate medium, or the internal communication between two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0038] In the description of this application, it should be understood that the terms "upper", "lower", "front", "back", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0039] The terms "first," "second," and "third" (if any) in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a particular order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in orders other than those illustrated or described herein.

[0040] Furthermore, the terms “comprising” and “having”, and any variations thereof, are intended to cover non-exclusive inclusion, such as a process, method, system, product, or maintenance tool that includes a series of steps or units, not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product, or maintenance tool.

[0041] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0042] A floor scrubber is a smart cleaning appliance that integrates vacuuming, mopping, scrubbing, and self-cleaning functions. It is widely used for cleaning various indoor and outdoor environments, and can clean both dry and wet waste in one go. A floor scrubber typically consists of a floor brush and a main unit. The floor brush moves across the floor, sucking in liquid stains and solid debris through the suction port and transporting them to the main unit for storage via an air duct. The floor brush is usually equipped with rollers; as the brush cleans the floor, the rollers contact the floor and roll along it, allowing the brush to move across the surface.

[0043] However, in order to ensure the floor brush has good stability during the cleaning process, rollers are needed at both the front and rear ends of the floor brush for support. Since the front roller is located in front of the suction port of the floor brush, the front roller will pass over the uncleaned floor first during the cleaning process. Hair fibers on the floor are easy to get tangled on the roller as the roller rotates, and they become more and more tangled as the roller rotates, making them difficult to clean.

[0044] To address the aforementioned technical problems, this application provides a floor brush device and cleaning equipment. The brush is mounted in a cavity that communicates with the suction chamber. The negative pressure during the suction process allows airflow to pass through the cavity containing the brush. Furthermore, the design of the brush allows the hair picked up by the brush to slide, gather, and be sucked into the suction chamber, thus preventing hair from being confined and tangled on the brush and making it easier to clean the hair fibers.

[0045] The following is an example illustrating the application scenarios of the floor brush device and cleaning equipment provided in the embodiments of this application.

[0046] The floor brush device provided in this application embodiment can be applied to products including but not limited to mopping machines, floor scrubbers, floor cleaning robots, etc. Depending on the product type, the cleaning equipment provided in this application embodiment can be used to clean surfaces of various materials, such as floors, floor tiles, glass, etc. This application embodiment does not make specific limitations in this regard.

[0047] Figure 1 This is a bottom schematic diagram of the floor brush device provided in the embodiments of this application; Figure 2 This is a schematic diagram of the structure of the cleaning equipment provided in the embodiments of this application; Figure 3 This is a schematic diagram of the supporting rollers in the floor brush device provided in the embodiments of this application.

[0048] See Figures 1 to 3 As shown, this application embodiment provides a floor brush device 100, which includes a device body 110 and a support roller 120. The support roller 120 is rotatably mounted on the device body 110 and is used to support the device body 110. When the floor brush device 100 cleans the floor, the support roller 120 rolls on the floor.

[0049] The device body 110 has a dust suction chamber 101, which extends along the width of the floor brush device 100 and is open towards the lower part of the device body 110. The device body 110 sucks up dust, debris and water stains from the ground through the dust suction chamber 101 to clean the ground.

[0050] The main body 110 of the device has a roller cavity 102, which is located in front of the suction chamber 101 along the cleaning direction of the floor brush device 100. A support roller 120 is rotatably disposed within the roller cavity 102. Part of the structure of the support roller 120 protrudes from the bottom of the main body 110 to the outside of the roller cavity 102. When the floor brush device 100 cleans the floor, the support roller 120 can contact the floor, and there is a certain gap between the bottom of the main body 110 and the floor.

[0051] In some embodiments, the surface of the support roller 120 has a recess 121, which is arranged circumferentially around the support roller 120. When the support roller 120 contacts the surface to be cleaned, an airflow gap is formed between the recess 121 and the surface to be cleaned.

[0052] Understandably, when the floor brush device 100 cleans the floor, a negative pressure is created in the suction chamber 101, allowing airflow to flow from the roller chamber 102 to the suction chamber 101. As the airflow passes through the roller chamber 102, it can also pass through the airflow gap corresponding to the recess 121. The diameter of the support roller 120 at the location of the recess 121 is relatively narrow, allowing fibers and hair to gather towards the recess 121 and be sucked into the suction chamber 101 by the airflow within the airflow gap.

[0053] It should be noted that in the floor brush device 100 provided in this application embodiment, by setting the support roller 120 in the roller cavity 102 connected to the dust suction chamber 101, and designing the support roller 120 with a concave surface structure, the hair fibers rolled up by the roller can gather in the concave part 121 of the roller, and can be sucked from the roller cavity 102 into the dust suction chamber 101 by the negative pressure suction in the dust suction chamber 101, thus preventing the hair fibers from getting more and more tightly wrapped on the support roller 120, making it easier to clean.

[0054] In some embodiments, the rolling direction of the support roller 120 is consistent with the cleaning direction of the floor brush device 100. Along the rolling direction of the support roller 120, the airflow gap connects the front and rear sides of the support roller 120.

[0055] The cleaning direction of the floor brush device 100 is defined as the X direction, and the width direction of the floor brush device 100 is defined as the Y direction. The Y direction is perpendicular to the X direction, and the axial direction of the support roller 120 is consistent with the Y direction. The airflow in the roller cavity 102 can pass through the airflow gap along the X direction.

[0056] It is understandable that the airflow direction of the airflow gap is consistent with the communication direction of the roller cavity 102 and the suction cavity 101. When the support roller 120 rolls along the ground, hair fibers and dust debris can pass through the airflow gap and be sucked into the suction cavity 101, avoiding them from getting tangled on the support roller 120.

[0057] Please continue to refer to Figures 1 to 3 In some embodiments, along the axial direction of the support roller 120, the diameters at both ends of the support roller 120 are larger than the diameter at the middle position of the support roller 120. In this way, the support roller 120 can form a structure that is thicker at both ends and thinner in the middle along the axial direction.

[0058] Understandably, when the support roller 120 rolls up the hair fibers, as the support roller 120 rotates, the hair fibers can slide from both ends of the support roller 120 toward the middle, preventing the hair fibers from getting more and more tightly wrapped at both ends of the support roller 120.

[0059] For example, the diameter of the support roller 120 gradually decreases from both ends to the middle, thereby improving the smoothness of the hair fibers sliding into the recess 121.

[0060] It should be noted that the recessed portion 121 forms an annular groove around the circumference of the support roller 120. In this way, when the support roller 120 rolls along the ground, an airflow gap will always be formed between the support roller 120 and the ground, so that after the hair is lifted by the support roller 120, it can slide from both ends of the support roller 120 towards the middle, preventing the hair from getting tangled more and more tightly at both ends of the support roller 120.

[0061] In some embodiments, in the radial cross-section of the supporting roller 120, the recess 121 has a first arc segment 1211 and two second arc segments 1212, the two second arc segments 1212 being connected to the two ends of the first arc segment 1211 respectively.

[0062] The first arc segment 1211 is recessed towards the axis of the support roller 120, while the second arc segment 1212 is protruding. This ensures that the recessed portion 121 smoothly transitions from both ends to the middle, and also guarantees that the surface of the support roller 120 maintains a certain contact area with the ground, preventing excessive wear of the support roller 120.

[0063] It is understandable that the two second arc segments 1212 are connected to the two ends of the first arc segment 1211, and the structure of the recess 121 is symmetrically arranged with respect to the radial central axis of the support roller 120.

[0064] It should be noted that the radial depth of the recess 121 along the support roller 120 is consistent with the height of the airflow gap formed by the contact between the support roller 120 and the bottom surface. The recess 121 causes the surface of the support roller 120 to slope from both ends towards the middle. As the hair fibers are rolled up, they are subjected to a radial tightening force as the support roller 120 rolls, and the reaction force of the surface of the support roller 120 on the hair fibers causes the hair fibers to slide smoothly towards the lower part of the recess 121.

[0065] In some embodiments, the support roller 120 may include a roller body 122 and a rotating shaft 123. The rotating shaft 123 is coaxially connected to the roller body 122 and protrudes from both ends of the roller body 122 in the axial direction.

[0066] Along the width direction of the floor brush device 100, the roller cavity 102 has slots at both ends, and the two ends of the rotating shaft 123 are respectively inserted into the slots at both ends of the roller cavity 102. In this way, the smooth rotation of the support roller 120 relative to the device body 110 is ensured, and the support roller 120 is prevented from falling off the device body 110.

[0067] For example, the roller body 122 and the rotating shaft 123 can be integrally formed. Alternatively, the rotating shaft 123 can be coaxially mounted on the roller body 122, with an interference fit to fix the two relatively.

[0068] The specific cleaning structure on the floor brush device 100 will be described in detail below.

[0069] Please continue to refer to Figures 1 to 3 In one possible implementation, the main body 110 of the device has a suction port 103, which is connected to the dust collection chamber 101, and the suction port 103 is located at the middle of the main body 110 along the width direction of the floor brush device 100. The airflow flowing through the roller chamber 102 enters the dust collection chamber 101 and then flows to the suction port 103.

[0070] Understandably, the dust, debris, and water stains on the ground corresponding to the vacuum chamber 101 will flow towards the suction port 103 with the negative pressure airflow, so that the sucked-in hair and dust debris can be gathered in the middle of the vacuum chamber 101, improving cleaning efficiency.

[0071] For example, the length dimension of the suction chamber 101 along the Y direction can be matched with the width of the device body 110.

[0072] In some embodiments, along the cleaning direction of the floor brush device 100, a scraper is provided on the rear side of the dust suction chamber 101. The scraper can scrape the ground when the floor brush device 100 moves, so that dust, debris and water stains on the ground are collected on the front side of the scraper and sucked into the suction port 103.

[0073] In some embodiments, the scraper may include a first scraper 140 and a second scraper 150, the second scraper 150 being disposed on the rear side of the suction port 103 along the cleaning direction of the floor brush device 100, and the first scraper 140 partially overlapping the suction port 103 in its vertical projection. A cleaning cavity is formed between the first scraper 140 and the second scraper 150.

[0074] The suction port 103 on the front side of the first scraper 140 along the X direction sucks in dust and debris for rough cleaning, while the cleaning chamber formed by the first scraper 140 and the second scraper 150, together with the first scraper 140 and the second scraper 150, can perform fine cleaning of the floor.

[0075] It is understood that the floor brush device 100 may also include a water spray module 160, which is disposed inside the cleaning chamber and is used to spray water onto the surface to be cleaned below the cleaning chamber. A portion of the suction port 103 is opposite to the cleaning chamber to suck the wastewater after cleaning the surface to be cleaned into the suction duct of the device body 110.

[0076] For example, the first scraper 140 and the second scraper 150 can be arranged in parallel, and the second scraper 150 can be installed along the rear edge of the suction port 103 to maximize the use of the suction port 103 while avoiding water stains.

[0077] It should be noted that this application uses the water spray module 160 in conjunction with the scraper to clean the floor. Compared with the roller brush, there will be no hair fibers tangled, and no water stains will remain on the floor brush device 100 to produce odors. Therefore, hair fibers will not be tangled on the front roller or left on the rear cleaning module, and can be effectively cleaned.

[0078] In some embodiments, there may be two support rollers 120, with a roller cavity 102 provided on each side near the width direction of the device body 110, and the two support rollers 120 respectively disposed in the two roller cavities 102. The two support rollers 120 can improve the stability of the floor brush device 100.

[0079] Understandably, the hair fibers rolled up by the two side support rollers 120 can be sucked into the suction chamber 101, and the roller chamber 102 has a small volume, so the suction chamber 101 can maintain a stable negative pressure suction.

[0080] In some embodiments, the floor brush device 100 may further include a rear support wheel 130, which is rotatably disposed with respect to the device body 110 and is located on the rear side of the suction chamber 101 along the cleaning direction of the floor brush device 100, thereby improving the support stability of the device body 110.

[0081] It should be noted that the diameter of the rear support wheel 130 is larger than that of the support roller 120. Since the rear support wheel 130 is located behind the vacuum chamber 101, during the cleaning process of the floor brush device 100, the floor brush device 100 pushes forward first, and no hair fibers will get tangled on the rear support wheel 130.

[0082] This application provides a cleaning device, which includes a device body 200 and the aforementioned floor brush device 100, with the device body 200 and the floor brush device 100 being movably connected.

[0083] The equipment body 200 may be equipped with a sewage tank, and a hose for sewage and garbage to pass through can be connected between the equipment body 200 and the floor brush device 100. Sewage and garbage sucked in from the sewage suction duct can enter the equipment body 200 through the hose and be collected in the sewage tank.

[0084] This application provides a floor brush device and cleaning equipment. The floor brush device includes a main body and a support roller. The main body has a suction chamber and a roller chamber. The suction chamber extends along the width of the floor brush device and is open towards the lower part of the main body. Along the cleaning direction of the floor brush device, the roller chamber is located in front of the suction chamber. The support roller is rotatably disposed in the roller chamber. The surface of the support roller has a recessed portion, which is arranged around the circumference of the support roller. When the support roller contacts the surface to be cleaned, an airflow gap is formed between the recessed portion and the surface to be cleaned, so that the hair fibers rolled up by the roller can gather in the recessed portion of the roller and can be sucked into the suction chamber from the roller chamber by the negative pressure suction in the suction chamber, thus preventing the hair fibers from getting more and more tightly wrapped on the support roller.

[0085] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A floor brush device, characterized in that, The floor brush device (100) includes a device body (110) and a support roller (120); the device body (110) has a suction chamber (101) and a roller chamber (102); the suction chamber (101) extends along the width direction of the floor brush device (100) and is open towards the lower part of the device body (110); along the cleaning direction of the floor brush device (100), the roller chamber (102) is located in front of the suction chamber (101); the support roller (120) is rotatably disposed in the roller chamber (102); The surface of the support roller (120) has a recess (121) which is arranged circumferentially around the support roller (120); when the support roller (120) contacts the surface to be cleaned, an airflow gap is formed between the recess (121) and the surface to be cleaned.

2. The floor brush device according to claim 1, characterized in that, The rolling direction of the support roller (120) is consistent with the cleaning direction of the floor brush device (100); along the rolling direction of the support roller (120), the airflow gap connects the front and rear sides of the support roller (120).

3. The floor brush device according to claim 1, characterized in that, Along the axial direction of the support roller (120), the diameters at both ends of the support roller (120) are larger than the diameter at the middle position of the support roller (120).

4. The floor brush device according to claim 3, characterized in that, The diameter of the support roller (120) gradually decreases from both ends toward the middle.

5. The floor brush device according to claim 1, characterized in that, In the radial section of the support roller (120), the recess (121) has a first arc segment (1211) and two second arc segments (1212), and the two second arc segments (1212) are respectively connected to the two ends of the first arc segment (1211); The first arc segment (1211) is recessed toward the axis of the support roller (120), and the second arc segment (1212) is protruding.

6. The floor brush device according to any one of claims 1-5, characterized in that, The support roller (120) includes a roller body (122) and a rotating shaft (123), the rotating shaft (123) being coaxially connected to the roller body (122); the rotating shaft (123) protrudes from both ends of the roller body (122) in the axial direction; Along the width direction of the floor brush device (100), the two ends of the roller cavity (102) are provided with slots, and the two ends of the rotating shaft (123) are respectively inserted into the slots at both ends of the roller cavity (102).

7. The floor brush device according to any one of claims 1-5, characterized in that, The main body (110) of the device has a suction port (103), which is connected to the dust suction chamber (101) and is located in the middle of the main body (110) along the width direction of the floor brush device (100); the airflow flowing through the roller chamber (102) enters the dust suction chamber (101) and flows to the suction port (103).

8. The floor brush device according to any one of claims 1-5, characterized in that, There are two support rollers (120), and each of them has a roller cavity (102) on one side of the device body (110) in the width direction. The two support rollers (120) are respectively disposed in the two roller cavities (102).

9. The floor brush device according to any one of claims 1-5, characterized in that, The floor brush device (100) also includes a rear support wheel (130), which is rotatably disposed with respect to the main body (110) of the device, and the rear support wheel (130) is located on the rear side of the dust suction chamber (101) along the cleaning direction of the floor brush device (100).

10. A cleaning device, characterized in that, The cleaning equipment includes a main body (200) and a floor brush device (100) as described in any one of claims 1-9, wherein the main body (200) is movably connected to the floor brush device (100).