Roller brush assembly and cleaning equipment

Abstract

The present application provides a roller brush assembly and a cleaning device, and relates to the technical field of cleaning products. The roller brush assembly provided by the present application includes a roller and a flexible cleaning member, and the roller includes a first roller body; the flexible cleaning member is connected to the roller, and the flexible cleaning member is at least partially protruded and arranged on the surface of the first roller body, and the radial diameter of the first roller body gradually decreases from its axial ends to the position of the center line of the first roller body, and the center line extends radially along the first roller body. At the position where the radial diameter of the first roller body is the smallest, the distance between the top of the flexible cleaning member and the axis of the roller is the smallest. The roller forms a structure with a smaller diameter in the middle and a larger diameter at both ends. When the roller brush assembly rotates, the hair rolled up by the roller brush assembly will gather toward the middle of the first roller body, so that it is easier to be sucked into the interior of the cleaning device, and will not be entangled more and more tightly toward the two ends of the roller brush assembly, which makes it easier to clean the roller brush assembly.

Description

Technical Field

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

[0002] Mite removers, vacuum cleaners, sweeping robots and other cleaning equipment are commonly used cleaning equipment in the home. Vacuum cleaners and sweeping robots can clean the floor, and mite removers can remove dust and worms from the surface of mattresses, leather and other materials.

[0003] In the related art, a cleaning device usually includes a shell and a fan unit arranged in the shell. The airflow generated by the fan unit is used to generate suction at the suction port of the shell. A roller brush can be provided at a position corresponding to the suction port. The roller brush is used to roll on the cleaned surface to pick up dust and hair, and the dust and hair are sucked into the inside of the device through the suction force of the suction port to achieve the cleaning function.

[0004] However, during the cleaning process of current cleaning devices, hair is easily entangled in the roller brush thereof and cannot be sucked into the interior of the device. Summary of the invention

[0005] The present application provides a roller brush assembly and a cleaning device to solve the technical problem that hair is easily entangled on the roller brush of the current cleaning device during the cleaning process and cannot be sucked into the device.

[0006] In a first aspect, the present application provides a roller brush assembly, which includes a roller and a flexible cleaning member, wherein the roller includes a first roller body; the flexible cleaning member is connected to the roller, and the flexible cleaning member at least partially protrudes from the surface of the first roller body.

[0007] The radial diameter of the first roller gradually decreases from its axial ends to the center line of the first roller, and the center line extends radially along the first roller. At the position where the radial diameter of the first roller is the smallest, the top of the flexible cleaning member is at the smallest distance from the axis of the roller.

[0008] The roller brush assembly provided in the present application has a differentiated design of its roller diameter, designs the first roller body to have a smaller diameter in the middle and a larger diameter at both ends, and limits the height of the flexible cleaning member in the middle area of ​​the roller to a reasonable range. When the roller brush assembly rotates, the hair rolled up by the roller brush assembly will gather toward the middle of the first roller body, thereby being more easily sucked into the interior of the cleaning device, rather than being entangled tighter and tighter on the two ends of the roller brush assembly, making it easier to clean the roller brush assembly.

[0009] As an optional implementation, the cross-sectional side edge of the first roller along the axial direction of the drum is in the shape of an inwardly concave arc.

[0010] With such arrangement, the first roller forms a structure that gradually narrows from both ends to the middle and transitions into an arc. When hair fibers are rolled up on the roller brush assembly, they will slide along the surface of the first roller toward the narrowed area in the middle as the roller brush assembly rotates, preventing the hair fibers from being entangled around the end shafts or gaps of the roller brush assembly at both ends.

[0011] As an optional embodiment, the circumferential outer surface of the first rolling element from the axial end to the center line thereof is a conical surface.

[0012] With such arrangement, the first roller forms a structure that gradually narrows and smoothly transitions from both ends to the middle, thereby improving the smoothness of the hair sliding along the surface of the first roller to the middle and preventing the fiber hair from becoming increasingly entangled on the surface of the first roller.

[0013] As an optional embodiment, the roller brush assembly further includes two second rollers, which are coaxially connected to the two axial ends of the first roller; at least a portion of the structure of the flexible cleaning member protrudes from the surface of the second roller.

[0014] With this arrangement, the drum is divided into a first roller located in the middle of the axis and a second roller located at both ends. On the one hand, the flexible cleaning element can fully rub and beat the surface to be cleaned to ensure good cleaning efficiency. On the other hand, it can prevent the rolled fiber hair from being entangled on the drum and being difficult to clean.

[0015] As an optional embodiment, the diameter of the second roller remains equal along the axial direction of the drum; or, the diameter of the second roller gradually increases from one end close to the first roller to one end away from the first roller; or, the diameter of the second roller gradually decreases from one end close to the first roller to one end away from the first roller.

[0016] Such arrangement can prevent fiber hair from being entangled on the second roller.

[0017] As an optional implementation, the two second rollers have equal lengths along the axial direction of the drum.

[0018] Such an arrangement can maintain the symmetry of the two ends of the roller, ensuring that the roller brush assembly is subjected to balanced force during rolling cleaning.

[0019] As an optional implementation, the flexible cleaning member includes two rubber strip portions, which are respectively connected to the side walls of the two second rollers; the rubber strip portions protrude from the side wall surfaces of the second rollers.

[0020] With such arrangement, as the roller brush assembly rotates, the rubber strips at the corresponding positions of the second roller can respectively slap the surface to be cleaned, thereby maintaining a good cleaning effect.

[0021] As an optional embodiment, the flexible cleaning member includes a first rubber strip portion and two second rubber strip portions, the first rubber strip portion is connected between the two second rubber strip portions, the two second rubber strip portions are respectively opposite to the two second rollers, and the first rubber strip portion is opposite to the first roller; the distance between the top of the second rubber strip portion and the axis of the roller is greater than the distance between the top of the first rubber strip portion and the axis of the roller.

[0022] Such an arrangement enables the overall outer contour of the roller brush assembly to form a structure that is narrowed in the middle, so that the rolled-up limited hair is more easily gathered in the middle and sucked into the interior of the cleaning device.

[0023] As an optional embodiment, there are multiple flexible cleaning members, which are spaced apart circumferentially of the drum; the edge of the first rubber strip portion of at least one flexible cleaning member facing away from the drum axis is flush with or higher than the surface of the second roller.

[0024] With such an arrangement, there can be a rubber strip at the corresponding position of the first roller to beat the surface to be cleaned, thereby maintaining a good cleaning effect.

[0025] As an optional embodiment, along the axial direction of the roller, the distance between the top of the second rubber strip portion and the axis of the roller remains equal; or, along the axial direction of the roller, the distance between the top of the second rubber strip portion and the axis of the roller gradually decreases from the end far away from the first roller to the end close to the first roller.

[0026] Such arrangement can prevent the hair on the second roller from being entangled with the end of the roller.

[0027] As an optional embodiment, the outer wall of the drum is provided with a slot, the slot extending along the axial direction of the drum; or the slot extending spirally along the circumferential outer wall of the drum. The flexible cleaning member is inserted into the slot, and the flexible cleaning member extends along the slot.

[0028] With such an arrangement, when the roller brush assembly rotates, the flexible cleaning element can continuously hit the cleaned surface, thereby lifting dust and hair and improving the cleaning effect.

[0029] As an optional embodiment, the roller brush assembly further includes an end cover connected to the axial end of the roller; at least a portion of the structure of the end cover is blocked at the end of the flexible cleaning member.

[0030] Such an arrangement can improve the reliability of the installation of the flexible cleaning member on the drum and prevent the flexible cleaning member from falling off the drum.

[0031] In a second aspect, the present application provides a cleaning device, which includes a device body and the roller brush assembly in the above technical solution, the device body has an air suction port, and the first roller of the roller of the roller brush assembly is opposite to the air suction port.

[0032] The present application provides a roller brush assembly and a cleaning device, the roller brush assembly includes a roller and a flexible cleaning member, the roller includes a first roller body; the flexible cleaning member is connected to the roller, the flexible cleaning member at least partially protrudes from the surface of the first roller body, the radial diameter of the first roller body gradually decreases from its axial ends to the position of the center line of the first roller body, and the center line extends along the radial direction of the first roller body. The roller forms a structure with a smaller diameter in the middle and a larger diameter at both ends. When the roller brush assembly rotates, the hair rolled up by the roller brush assembly will gather at the middle of the first roller body, so that it is easier to be sucked into the cleaning device, and will not be more and more tightly wrapped around the roller brush assembly at both ends, making it easier to clean the roller brush assembly.

[0033] In addition to the technical problems solved by the embodiments of the present application described above, the technical features that constitute the technical solutions, and the beneficial effects brought about by the technical features of these technical solutions, other technical problems that can be solved by the roller brush assembly and cleaning equipment provided by the present application, other technical features included in the technical solutions, and the beneficial effects brought about by these technical features will be further described in detail in the specific implementation methods. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0035] Figure 1 A schematic diagram of the arrangement of the roller brush assembly provided in an embodiment of the present application in a cleaning device;

[0036] Figure 2 A schematic diagram of the structure of a roller brush assembly provided in an embodiment of the present application;

[0037] Figure 3 A side view of a roller brush assembly provided in an embodiment of the present application;

[0038] Figure 4 for Figure 3 Sectional view in the AA direction;

[0039] Figure 5 for Figure 4 Cross-sectional view in the BB direction;

[0040] Figure 6 A schematic diagram of a first structure of a roller in a roller brush assembly provided in an embodiment of the present application;

[0041] Figure 7 for Figure 6Cross-sectional view in CC direction;

[0042] Figure 8 A schematic diagram of a second structure of a roller in a roller brush assembly provided in an embodiment of the present application;

[0043] Fig. 9 A third structural schematic diagram of the roller in the roller brush assembly provided in an embodiment of the present application;

[0044] Fig.10 This is a schematic diagram of the structure of the equipment main body in the cleaning equipment provided in an embodiment of the present application.

[0045] Description of reference numerals:

[0046] 10- Cleaning equipment;

[0047] 100-equipment body; 101-air inlet; 110-base; 111-accommodation tank; 120-cover plate; 121-sewage inlet tank; 130-retaining rib;

[0048] 200-roller brush assembly; 210-roller; 210a-first roller; 210b-second roller; 211-slot; 212-clamping groove; 220-flexible cleaning member; 221-rubber strip portion; 221a-first rubber strip portion; 221b-second rubber strip portion; 222-clamping protrusion; 230-end cover. DETAILED DESCRIPTION

[0049] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, or it can be an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0050] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying 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 specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0051] The terms "first", "second", "third" (if any) in the specification and claims of this application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the application described herein can be implemented in an order other than those illustrated or described herein, for example.

[0052] In addition, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, for example, a process, method, system, product, or service tool that includes a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such process, method, product, or service tool.

[0053] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0054] The cleaning device usually includes a shell and a fan unit arranged in the shell. The airflow generated by the fan unit generates suction at the suction port of the shell. A roller brush can be arranged at the position corresponding to the suction port. The roller brush rolls on the cleaned surface to pick up dust and hair, and the dust and hair are sucked into the inside of the device through the suction force of the suction port, thereby realizing the cleaning function.

[0055] However, during the cleaning process of current cleaning equipment, hair is easily entangled in its roller brush and cannot be sucked into the equipment. Take the mite removal device as an example. The mite removal device can remove dust and worms from the surface of mattresses, leather materials, etc. There are usually many hair fibers adhering to the mattress. When the roller brush of the mite removal device rolls on the surface of the mattress, the hair is easily entangled in the roller brush. As the roller brush rolls, the entangled hair will get tighter and tighter at both ends of the roller brush and cannot be sucked away. This will also make the cleaning of the roller brush time-consuming and laborious.

[0056] In order to solve the above-mentioned technical problems, the embodiments of the present application provide a roller brush assembly and a cleaning device. The roller brush assembly is used on the cleaning device. Through the differentiated design of the roller diameter of the roller brush, a contour structure with both ends narrowed toward the middle is formed on the roller of the roller brush, so that when the roller brush rolls up the hair, the hair will not be entangled and tightened at a specific position on the roller brush or at both ends of the roller brush, but will be wound and moved toward the narrowed area as the roller brush rotates, and will be sucked into the cleaning device under the action of the suction force inside the cleaning device, thereby reducing the amount of hair entangled on the roller brush, improving the cleaning efficiency, and making it easier to clean the roller brush after cleaning.

[0057] Figure 1 A schematic diagram of the arrangement of the roller brush assembly provided in an embodiment of the present application in a cleaning device; Figure 2 A schematic diagram of the structure of a roller brush assembly provided in an embodiment of the present application; Figure 3 A side view of a roller brush assembly provided in an embodiment of the present application; Figure 4 for Figure 3 Sectional view in the AA direction; Figure 5 for Figure 4 Cross-sectional view in the BB direction; Figure 6 A schematic diagram of a first structure of a roller in a roller brush assembly provided in an embodiment of the present application; Figure 7 for Figure 6 Cross-sectional view along CC direction.

[0058] See also Figures 1 to 7 As shown, the present application provides a roller brush assembly 200, which is applied to a cleaning device 10. When the cleaning device 10 performs a cleaning operation, as the cleaning device 10 moves, the roller brush assembly 200 can roll on the surface to be cleaned. The roller brush assembly 200 can carry away impurities such as dust and hair on the surface to be cleaned, so that impurities such as dust and hair can be more easily sucked into the interior of the cleaning device 10.

[0059] The roller brush assembly 200 includes a roller 210 and a flexible cleaning member 220. The roller 210 includes a first roller body 210a. The flexible cleaning member 220 is connected to the roller 210. The flexible cleaning member 220 at least partially protrudes from the surface of the first roller body 210a. When the roller brush assembly 200 rolls on the surface to be cleaned, the flexible cleaning member 220 can rub and slap the surface to be cleaned, thereby achieving a better cleaning effect.

[0060] In some embodiments, the radial diameter of the first roller 210a gradually decreases from its axial ends to the center line of the first roller 210a, wherein the center line extends along the radial direction of the first roller 210a. In this way, the first roller 210a can form a structure with thick ends and thin middle.

[0061] Among them, at the position where the radial diameter of the first roller 210a is the smallest, the top of the flexible cleaning member 220 is at the smallest distance from the axis of the drum 210, thereby limiting the height of the flexible cleaning member 220 in the middle of the drum 210 to prevent the flexible cleaning member 220 from blocking fiber hair from gathering to the middle of the first roller 210a.

[0062] The axial direction of the roller 210 is defined as the X direction, the axial direction of the first roller 210a is also defined as the X direction, and the radial direction of the roller 210 is defined as the Y direction. At least part of the structure of the flexible cleaning member 220 protrudes from the surface of the roller 210 along the Y direction. The center line of the first roller 210a is defined as S, and the first roller 210a is symmetrical with respect to the center line S, and the center line S is parallel to the Y direction.

[0063] It can be understood that the radial cross section of the first roller 210a is circular, and the radial diameter of the first roller 210a refers to the diameter of its radial cross section. In the X direction, the cross-sectional profile of the first roller 210a gradually decreases from both ends to the center line S. That is, the cross-sectional diameters at both ends of the first roller 210a are the largest, and the cross-sectional size of the first roller 210a at the center line S is the smallest.

[0064] For example, the position where the radial diameter of the first roller 210a is the smallest may be the position of the first roller 210a at the center line S. The distance between the top of the flexible cleaning member 220 and the axis of the drum 210 is defined as d, and the value of the position d of the center line S may be less than or equal to the values ​​of other positions d. For example, the value of the position d of the center line S is a, and the values ​​of other positions d along the axial direction of the drum 210 may be a, b, or other values, wherein a is less than b and other values.

[0065] It should be noted that, in the roller brush assembly 200 provided in the embodiment of the present application, through the differentiated design of the diameter of the roller 210, the first roller body 210a is designed to have a smaller diameter in the middle and a larger diameter at both ends. When the roller brush assembly 200 rotates, as the hair is wound, the fiber hair rolled up by the roller brush assembly 200 will gather toward the middle position of the first roller body 210a with a smaller diameter, thereby being more easily sucked into the interior of the cleaning device 10, and will not be increasingly entangled on the roller brush assembly 200 at both ends. Therefore, it is easier to clean the roller brush assembly 200.

[0066] In the embodiment of the present application, the cleaning device 10 has a dust suction function, and the cleaning device 10 is provided with an air suction port 101. When the roller brush assembly 200 is provided on the cleaning device 10, the roller brush assembly 200 is arranged opposite to the air suction port 101. Exemplarily, the middle position of the first roller 210a with a smaller diameter can be arranged directly opposite to the air suction port 101. For example, the center line S of the first roller 210a is also the center line of the air suction port 101. When the fiber hair rolled up by the roller brush assembly 200 gathers toward the middle position of the first roller 210a with a smaller diameter, the closer the fiber hair is to the air suction port 101, the stronger the suction force is, and it is easier to be sucked into the interior of the cleaning device 10.

[0067] It can be understood that, when a force analysis is performed on the hair rolled up by the roller brush assembly 200, when the hair tends to be entangled and tightened on the surface of the roller 210 of the roller brush assembly 200, the surface of the roller 210 will have a reaction force on the hair, and the reaction force is perpendicular to the surface of the roller 210. Due to the difference in the radial cross-sectional diameter of the roller 210 at different axial positions of the roller 210, which is larger at both ends and smaller in the middle, the reaction force can be decomposed into a force perpendicular to the axial direction of the roller 210 and a force parallel to the axial direction of the roller brush, that is, a force in the X direction and a force in the Y direction, wherein the force parallel to the axial direction of the roller brush points to the direction of the smaller radial diameter on the roller brush. In this way, as the roller brush assembly 200 rotates, the rolled up hair will move toward the position of the center line S of the roller 210 with a smaller radial diameter.

[0068] The surface shape and structure of the first rolling body 210 a are exemplarily described below.

[0069] Please continue to refer to Figures 1 to 7 In some embodiments, the cross-sectional side of the first roller 210a along the axial direction of the roller 210 is in an inwardly concave arc shape. In this way, the first roller 210a can form a structure that gradually narrows from both ends to the middle and transitions into an arc. When the hair fiber is rolled up on the roller brush assembly 200, it will slide along the surface of the first roller 210a toward the narrowed area in the middle as the roller brush assembly 200 rotates, preventing the hair fiber from winding around the two ends of the roller brush assembly 200 and into the end shaft or gap.

[0070] Exemplarily, the arc shape of the side profile of the first roller 210a may have the same arc radius at different positions, or the arc radius may gradually change from the end of the first roller 210a to the center line S of the first roller 210a. For example, the arc radius of the side profile of the first roller 210a gradually increases from the end of the first roller 210a to the center line S of the first roller 210a. The embodiment of the present application does not specifically limit this.

[0071] In some embodiments, the circumferential outer surface of the first roller 210a from its axial end to the center line is a conical surface. In this way, the first roller 210a forms a structure that gradually narrows and smoothly transitions from both ends to the middle, which improves the smoothness of the hair sliding along the surface of the first roller 210a to the middle, and prevents the fiber hair from getting more and more entangled on the surface of the first roller 210a.

[0072] Exemplarily, the cross-sectional side profile of the first roller 210a along the axial direction of the drum 210 is an inclined straight line, and its inclination angle can be 5°, 10°, 20°, 30°, 40°, 45°, 50°, 60°, etc. The specific inclination angle can be set according to the axial length of the first roller 210a, the diameter of the first roller 210a at the center line S, and the diameter of the first roller 210a at the end. The embodiment of the present application does not make specific limitations on this.

[0073] It should be noted that in the embodiment of the present application, the roller 210 may be composed of only the first roller 210a, and the axial length of the first roller 210a is the axial length of the roller 210. Alternatively, the first roller 210a is a partial structure in the middle of the roller 210, and the second rollers 210b may be connected to both ends of the first roller 210a. The latter is exemplarily described below.

[0074] In a possible implementation, the roller brush assembly 200 further includes two second rollers 210b, which are coaxially connected to two axial ends of the first roller 210a. At least part of the structure of the flexible cleaning member 220 protrudes from the surface of the second roller 210b.

[0075] It can be understood that dividing the roller 210 into a first roller 210a located in the middle of the axis and a second roller 210b located at both ends can, on the one hand, allow the flexible cleaning member 220 to fully rub and beat the surface to be cleaned to ensure good cleaning efficiency, and on the other hand, avoid the rolled-up fiber hair from being entangled on the roller 210 and being difficult to clean.

[0076] It is understandable that the second roller 210b has a larger diameter than the middle position of the first roller 210a. When the roller brush assembly 200 is mounted on the cleaning device 10, the outer contour diameter of the roller brush assembly 200 at the first roller 210a is smaller than the outer contour diameter of the roller brush assembly 200 at the second roller 210b. The position of the first roller 210a on the roller brush assembly 200 is opposite to the air suction port 101 of the cleaning device 10, so that the fiber hair rolled up by the roller brush assembly 200 is more easily sucked into the air suction port 101 when it gathers toward the middle of the first roller 210a.

[0077] When the roller brush assembly 200 rotates around its own axis, the radial cross-section of the rotating body formed is circular, and the outer contour diameter of the roller brush assembly 200 refers to the diameter of the radial cross-section of the rotating body formed when the roller brush assembly 200 rotates around its own axis.

[0078] Exemplarily, the first roller 210a and the two second rollers 210b are an integrally formed structure, and the roller 210 may be made of plastic and formed by injection molding, or the roller 210 may be made of metal and formed by casting.

[0079] The structure and contour shape of the second rolling body 210 b are described below through different examples.

[0080] Please refer to Figure 6 , illustratively, the diameter of the second roller 210b is kept constant along the axial direction of the roller 210. In this way, when the roller brush assembly 200 rolls on the surface to be cleaned for cleaning, the friction force generated by the roller brush assembly 200 and the surface to be cleaned is more balanced, avoiding excessive differences in friction force at different positions of the roller brush assembly 200 in the axial direction, which can improve the user's feel when pushing the cleaning device 10 to move.

[0081] Figure 8 A second structural schematic diagram of the roller in the roller brush assembly provided in an embodiment of the present application.

[0082] Please refer to Figure 8 For example, the diameter of the second roller 210b gradually increases from the end close to the first roller 210a to the end away from the first roller 210a. In this way, an inclined surface can be formed on the surface of the second roller 210b, which is inclined toward the middle first roller 210a relative to the axial direction of the drum 210, so that the rolled fiber hair is more likely to gather on the first roller 210a and then be sucked into the cleaning device 10.

[0083] Fig. 9 A third structural schematic diagram of the roller in the roller brush assembly provided in an embodiment of the present application.

[0084] Please refer to Fig. 9 For example, the diameter of the second roller 210b gradually decreases from an end close to the first roller 210a to an end away from the first roller 210a, thereby preventing fiber hair from being entangled on the second roller 210b.

[0085] It should be noted that the flexible cleaning member 220 disposed on the drum 210 may protrude from the surface of the second roller 210 b , and the embodiment of the present application does not limit the specific diameter size of the second roller 210 b .

[0086] Please refer to Figure 6 and Figure 7In some embodiments, the two second rollers 210b have equal lengths along the axial direction of the roller 210, thereby maintaining symmetry at both ends of the roller 210 and ensuring balanced force on the roller brush assembly 200 during rolling cleaning.

[0087] The structure of the gentle cleaning piece is described in detail below.

[0088] Please continue to refer to Figures 1 to 7 For example, the flexible cleaning member 220 may be a rubber strip, a brush, or a combination of multiple thereof. For example, the flexible cleaning member 220 may be a rubber strip. When a rubber strip is used as the flexible cleaning member 220, the rubber strip can hit the surface to be cleaned, and the hair will not be entangled on the rubber strip, and the hair carried by the rubber strip is more likely to slide along the outer edge of the rubber strip toward the air suction port 101 of the cleaning device 10.

[0089] In some embodiments, the flexible cleaning member 220 includes two rubber strip portions 221 , which are respectively connected to the side walls of the two second rollers 210 b , and the rubber strip portions 221 protrude from the side wall surfaces of the second rollers 210 b .

[0090] It is understandable that, as the roller brush assembly 200 rotates, the rubber strips 221 at the corresponding positions of the second roller 210b can respectively slap the surface to be cleaned to maintain a good cleaning effect. However, at the position corresponding to the first roller 210a, the rubber strips 221 may not be provided, so that when the roller brush assembly 200 rotates, the concave structure formed by the first roller 210a can form a larger vacant area, so that the air suction port 101 of the cleaning device 10 can more easily suck in the fiber hair on the first roller 210a.

[0091] In some embodiments, the flexible cleaning member 220 includes a first rubber strip portion 221a and two second rubber strip portions 221b, the first rubber strip portion 221a is connected between the two second rubber strip portions 221b, the two second rubber strip portions 221b are respectively opposite to the two second rollers 210b, and the first rubber strip portion 221a is opposite to the first roller 210a. The distance between the top of the second rubber strip portion 221b and the axis of the roller 210 is greater than the distance between the top of the first rubber strip portion 221a and the axis of the roller 210.

[0092] With the axis of the roller 210 as a reference, the height of the second rubber strip portion 221b along the radial direction of the roller 210 is greater than the height of the first rubber strip portion 221a along the radial direction of the roller 210, so that the overall outer contour of the roller brush assembly 200 forms a structure that is narrowed in the middle, so that the rolled up limited hair is more easily gathered in the middle and sucked into the interior of the cleaning device 10.

[0093] It is understandable that the flexible cleaning member 220 is higher at both axial ends of the roller 210 and narrows at the axial middle portion of the roller 210, so that the hair can gather toward the middle of the roller brush assembly 200 to prevent the hair from being entangled at both ends of the roller brush assembly 200.

[0094] Exemplarily, the first rubber strip portion 221a is opposite to the first roller 210a, and the two second rubber strip portions 221b are opposite to the two second rollers 210b respectively. The second rubber strip portion 221b can be arranged protruding from the surface of the second roller 210b; the first rubber strip portion 221a can be protruding from the surface of the first roller 210a, or the first rubber strip portion 221a can be lower than the surface of the first roller 210a, so as to reduce the amount of hair entangled on the roller brush assembly 200 while maintaining a good cleaning effect.

[0095] For example, along the axial direction of the drum 210, the distance between the top of the second rubber strip portion 221b and the axis of the drum 210 is kept equal; or, along the axial direction of the drum 210, the distance between the top of the second rubber strip portion 221b and the axis of the drum 210 gradually decreases from the end away from the first roller 210a to the end close to the first roller 210a. In this way, the fiber hair rolled up at the corresponding position of the second roller 210b can slide toward the first roller 210a, which can prevent the hair on the second roller 210b from winding around the end of the drum.

[0096] It should be noted that the flexible cleaning member 220 may extend from one axial end to the other end of the drum 210 , or the flexible cleaning member 220 may be arranged in sections on the second roller 210 b , which is not specifically limited in the embodiment of the present application.

[0097] In some embodiments, there are multiple flexible cleaning members 220, and the multiple flexible cleaning members 220 are spaced apart in the circumferential direction of the drum 210. The edge of the first rubber strip portion 221a of at least one flexible cleaning member 220 that is away from the axis of the drum 210 is flush with or higher than the surface of the second roller 210b, so that there is a rubber strip at the corresponding position of the first roller 210a to beat the surface to be cleaned, thereby maintaining a good cleaning effect.

[0098] Exemplarily, the number of the flexible cleaning members 220 may be two, three or more, which is not specifically limited in the embodiment of the present application.

[0099] In some embodiments, the outer wall of the roller 210 is provided with a slot 211, and the slot 211 extends along the axial direction of the roller 210. The flexible cleaning member 220 is inserted into the slot 211, and the flexible cleaning member 220 extends along the slot 211. In this way, the flexible cleaning member 220 can contact the cleaned surface in the axial direction of the roller brush assembly 200, thereby increasing the cleaning range.

[0100] In some embodiments, the slot 211 extends spirally along the circumferential outer wall of the roller 210. In this way, when the roller brush assembly 200 rolls along the cleaning direction of the cleaning device 10, different positions of the flexible cleaning member 220 in the extension direction can contact the surface to be cleaned in turn as the roller brush assembly 200 rolls, ensuring that the surface of the roller brush assembly 200 leaves space for the air inlet 101 of the cleaning device 10, thereby improving the suction efficiency of dust and hair.

[0101] In some embodiments, the slot 211 passes through both ends of the drum 210 along the first direction. A clamping slot 212 is provided at one end of the slot 211 facing the axis of the drum 210, and the cross-sectional width of the clamping slot 212 is greater than the cross-sectional width of the slot 211. A clamping protrusion 222 is provided at one end of the flexible cleaning member 220 facing the axis of the drum 210, and the clamping protrusion 222 is clamped with the clamping slot 212.

[0102] It is understandable that the extension slot 211 of the flexible cleaning member 220 extends from one axial end to the other end of the drum 210. When assembling the flexible cleaning member 220, the flexible cleaning member 220 can be inserted into the slot 211 from the axial end of the drum 210. The engagement protrusion 222 cooperates with the engagement slot 212 to limit the flexible cleaning member 220 in the radial direction of the drum 210, thereby improving the reliability of the installation of the flexible cleaning member 220 on the drum 210 and preventing the flexible cleaning member 220 from falling off the drum 210.

[0103] For example, the cross-sectional shape of the clamping groove 212 along the radial direction of the drum 210 matches the cross-sectional shape of the clamping protrusion 222. The cross-sectional shapes of the clamping groove 212 and the clamping protrusion 222 can be square, triangular, circular, elliptical or other polygonal structures, which is not specifically limited in the embodiment of the present application.

[0104] In some embodiments, the roller brush assembly 200 also includes an end cover 230, which is connected to the axial end of the roller 210; at least part of the structure of the end cover 230 is blocked at the end of the flexible cleaning member 220, thereby improving the reliability of the installation of the flexible cleaning member 220 on the roller 210 and preventing the flexible cleaning member 220 from falling off the roller 210.

[0105] It is understandable that after the flexible cleaning member 220 is installed in the slot 211 on the drum 210 , end covers 230 can be installed at both axial ends of the drum 210 , and the end covers 230 can limit the flexible cleaning member 220 in the axial direction of the drum 210 .

[0106] Exemplarily, the end cap 230 may be circular in shape. The end cap 230 may be coaxially arranged with the drum 210, and the coverage area of ​​the end cap 230 is larger than the end area of ​​the drum 210, so that hair can be prevented from being rolled into the rollers at both ends of the drum 210.

[0107] Fig.10 This is a schematic diagram of the structure of the equipment main body in the cleaning equipment provided in an embodiment of the present application.

[0108] Please refer to Fig.10 , and combined with Figure 1 An embodiment of the present application provides a cleaning device 10, which includes a device body 100 and a roller brush assembly 200 in the above technical solution. The device body 100 has an air suction port 101, and the first roller 210a of the roller 210 of the roller brush assembly 200 is opposite to the air suction port 101.

[0109] The device body 100 may include a base 110 and a cover plate 120, wherein the base 110 has a receiving groove 111, the roller brush assembly 200 is rotatably disposed in the receiving groove 111, and the cover plate 120 is disposed on the notch of the receiving groove 111. A dirt inlet groove 121 is disposed on one side of the cover plate 120 away from the air inlet 101.

[0110] It is understandable that the notch of the accommodating groove 111 faces the bottom of the base 110, and the cover plate 120 is covered under the base 110, so that when the cleaning device 10 is in use, the flexible cleaning member 220 can face the surface to be cleaned under the base 110.

[0111] The dirt inlet 121 is located at the front side of the receiving groove 111 along the cleaning direction of the cleaning device 10, that is, the dirt inlet 121 is located at the front side of the device body 100 along the Y direction. When the cleaning device 10 performs a cleaning operation, the dirt inlet 121 can guide the hair and dust brought by the roller brush assembly 200 to improve the cleaning efficiency.

[0112] Exemplarily, the cover plate 120 may cover the area where the end caps 230 at both ends of the roller brush assembly 200 are located, thereby preventing hair from being rolled into the rotating shafts at both ends of the roller brush assembly 200 .

[0113] For example, the cover plate 120 can be connected to the base 110 by a snap, or connected by fasteners such as bolts. The cover plate 120 can be detachable relative to the base 110, or the cover plate 120 can be rotatably connected to the base 110 and can be rotated to open and close, which is not specifically limited in the embodiments of the present application.

[0114] In some embodiments, the cover plate 120 may be provided with an opening, and the roller brush assembly 200 at least partially protrudes out of the accommodating groove 111 through the opening. At least two retaining ribs 130 are provided on the cover plate 120, and the at least two retaining ribs 130 are spaced apart along the first direction, and the two ends of the retaining ribs 130 are respectively connected to the two sides of the opening.

[0115] It can be understood that the retaining rib 130 is arranged across the opening, and the retaining rib 130 can divide the opening into a plurality of small areas. This will not affect the contact between the flexible cleaning member 220 on the roller brush assembly 200 and the external surface to be cleaned, and dust and hair can smoothly enter the air suction port 101 driven by the roller brush assembly 200. On the other hand, when cleaning flexible surfaces to be cleaned such as bed sheets, cloth can be prevented from being sucked into the roller brush, thereby ensuring the smoothness of the cleaning process.

[0116] In some embodiments, the blocking rib 130 is opposite to the air suction port 101. Since the suction force on the surface to be cleaned is the greatest at the position opposite to the air suction port 101, the blocking rib 130 can be arranged at a position opposite to the first cleaning section, that is, the blocking rib 130 is arranged at a position opposite to the air suction port 101, so as to better prevent the cloth from being sucked into the roller brush.

[0117] In some embodiments, the spacing between adjacent retaining ribs 130 is 30 mm-50 mm, which can effectively prevent the cloth from being sucked into the air suction port 101 and causing the cleaning process to stagnate.

[0118] For example, the specific value of the spacing between adjacent retaining ribs 130 may be 30 mm, 31 mm, 35 mm, 40 mm, 45 mm, 49 mm, 50 mm, etc., which is not specifically limited in the embodiments of the present application.

[0119] For example, the number of the retaining ribs 130 may be two, three, four or more. Taking two retaining ribs 130 as an example, the two retaining ribs 130 are arranged across the opening along the Y direction, and the two retaining ribs 130 are arranged at intervals along the X direction. The distribution position of the two retaining ribs 130 is opposite to the first cleaning section. Since the outer contour diameter of the first cleaning section is relatively small, when the roller brush assembly 200 rotates, the flexible cleaning member 220 at the position of the first cleaning section can be prevented from interfering with the retaining ribs 130.

[0120] The following first describes an example of the application scenario of the cleaning device 10 provided in the embodiment of the present application.

[0121] The cleaning device 10 provided in the embodiment of the present application is a cleaning tool with a roller brush structure. Specifically, the product types of the cleaning device 10 in the embodiment of the present application may include but are not limited to a mite remover, a vacuum cleaner, a sweeper, a sweeping robot, etc. According to different product types, the cleaning device 10 provided in the embodiment of the present application can be used to clean the floor, clothes, bedding, sofa furniture, etc., and the embodiment of the present application does not make specific limitations on this.

[0122] The embodiment of the present application provides a roller brush assembly and a cleaning device, the roller brush assembly includes a roller and a flexible cleaning member, the roller includes a first roller body; the flexible cleaning member is connected to the roller, the flexible cleaning member at least partially protrudes from the surface of the first roller body, the radial diameter of the first roller body gradually decreases from its axial ends to the position of the center line of the first roller body, and the center line extends along the radial direction of the first roller body. The roller forms a structure with a smaller diameter in the middle and a larger diameter at both ends. When the roller brush assembly rotates, the hair rolled up by the roller brush assembly will gather at the middle of the first roller body, so that it is easier to be sucked into the cleaning device, and will not be entangled more and more tightly on the roller brush assembly towards the two ends, which makes it easier to clean the roller brush assembly.

[0123] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A roller brush assembly (200), characterized in that: The roller brush assembly (200) comprises a roller (210) and a flexible cleaning member (220), wherein the roller (210) comprises a first roller body (210a); the flexible cleaning member (220) is connected to the roller (210), and the flexible cleaning member (220) is at least partially protruding from the surface of the first roller body (210a); The radial diameter of the first roller (210a) gradually decreases from its axial ends toward the center line of the first roller (210a), and the center line extends along the radial direction of the first roller (210a); At the position where the radial diameter of the first roller (210a) is the smallest, the distance between the top of the flexible cleaning member (220) and the axis of the roller (210) is the smallest.

2. The roller brush assembly (200) according to claim 1, characterized in that: The cross-sectional side edge of the first rolling body (210a) along the axial direction of the drum (210) is in the shape of an inwardly concave arc.

3. The roller brush assembly (200) according to claim 1, characterized in that: The circumferential outer surface of the first rolling body (210a) from its axial end to the center line is a conical surface.

4. The roller brush assembly (200) according to any one of claims 1 to 3, characterized in that: The roller brush assembly (200) further comprises two second rollers (210b), wherein the two second rollers (210b) are coaxially connected to two axial ends of the first roller (210a); at least part of the structure of the flexible cleaning member (220) is protruding from the surface of the second roller (210b).

5. The roller brush assembly (200) according to claim 4, characterized in that: The diameter of the second roller (210b) remains constant along the axial direction of the drum (210); or, the diameter of the second roller (210b) gradually increases from an end close to the first roller (210a) to an end away from the first roller (210a); or, the diameter of the second roller (210b) gradually decreases from an end close to the first roller (210a) to an end away from the first roller (210a).

6. The roller brush assembly (200) according to claim 4, characterized in that: The two second rollers (210b) have the same length along the axial direction of the drum (210).

7. The roller brush assembly (200) according to claim 4, characterized in that: The flexible cleaning member (220) comprises two rubber strip portions (221), the two rubber strip portions (221) being respectively connected to the side walls of two second rollers (210b); the rubber strip portions (221) protrude from the side wall surfaces of the second rollers (210b).

8. The roller brush assembly (200) according to claim 4, characterized in that: The flexible cleaning member (220) comprises a first rubber strip portion (221a) and two second rubber strip portions (221b); the first rubber strip portion (221a) is connected between the two second rubber strip portions (221b); the two second rubber strip portions (221b) are respectively opposite to the two second rollers (210b); the first rubber strip portion (221a) is opposite to the first roller (210a); and the distance between the top of the second rubber strip portion (221b) and the axis of the roller (210) is greater than the distance between the top of the first rubber strip portion (221a) and the axis of the roller (210).

9. The roller brush assembly (200) according to claim 8, characterized in that: There are a plurality of flexible cleaning members (220), and the plurality of flexible cleaning members (220) are distributed at intervals in the circumferential direction of the roller (210); the edge of the first rubber strip portion (221a) of at least one flexible cleaning member (220) on the side away from the axis of the roller (210) is flush with or higher than the surface of the second roller (210b).

10. The roller brush assembly (200) according to claim 8, characterized in that: Along the axial direction of the roller (210), the distance between the top of the second rubber strip portion (221b) and the axis of the roller (210) remains equal; or, along the axial direction of the roller (210), the distance between the top of the second rubber strip portion (221b) and the axis of the roller (210) gradually decreases from an end far from the first roller (210a) to an end close to the first roller (210a).

11. The roller brush assembly (200) according to any one of claims 1 to 3, characterized in that: The outer wall of the drum (210) is provided with a slot (211), and the slot (211) extends along the axial direction of the drum (210); or the slot (211) extends spirally along the circumferential outer wall of the drum (210); The flexible cleaning member (220) is inserted into the slot (211), and the flexible cleaning member (220) extends along the slot (211).

12. The roller brush assembly (200) according to any one of claims 1 to 3, characterized in that: The roller brush assembly (200) further comprises an end cover (230), wherein the end cover (230) is connected to the axial end of the roller (210); at least a portion of the structure of the end cover (230) is blocked at the end of the flexible cleaning member (220).

13. A cleaning device (10), characterized in that: The cleaning device (10) comprises a device body (100) and a roller brush assembly (200) as described in any one of claims 1 to 12, wherein the device body (100) has an air suction port (101), and the first roller (210a) of the roller (210) of the roller brush assembly (200) is opposite to the air suction port (101).

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