Cleaning equipment and roller brushes

Abstract

The present invention relates to a roller brush, comprising a roller body provided with bristles, wherein the bristles comprise: a plurality of first hard bristle bundles distributed on the circumferential surface of the roller body along the circumferential direction, wherein the first hard bristle bundle comprises at least one first hard bristle; a plurality of first soft bristle bundles and a plurality of second soft bristle bundles distributed on the circumferential surface of the roller body, wherein the first soft bristle bundle and the second soft bristle bundle are respectively located on both sides of the first hard bristle bundle in the axial direction of the roller body, wherein the first soft bristle bundle comprises at least one first soft bristle, and the second soft bristle bundle comprises at least one second soft bristle. The above-mentioned roller brush only requires one or more sweeps to achieve effective cleaning of floor cracks and the ground, and there is no need to first sweep the floor cracks separately and then clean the ground a second time. This also avoids the problem that scattered objects will be swept into the floor cracks during the second cleaning of the ground, thereby affecting the cleaning effect. A cleaning device having the above-mentioned roller brush is also proposed.

Description

Technical Field

[0001] The present invention relates to the technical field of cleaning equipment, in particular to a roller brush and also to a cleaning equipment using the roller brush. Background Art

[0002] Traditionally, rotating "crevice brushes" have been used to clean narrow cracks in the floor, but their cleaning efficiency is low. Specifically, these brushes sweep dust, dirt, gravel particles, and moss from the cracks, scattering them onto the floor. This necessitates a secondary cleaning process. However, during this secondary cleaning, these scattered objects are swept back into the cracks, compromising cleaning effectiveness. Summary of the Invention

[0003] Based on this, it is necessary to propose a roller brush to address the problem of poor cleaning efficiency of traditional "thin-slit brushes". Also proposed is a cleaning device with this roller brush.

[0004] A roller brush comprises a roller body, wherein bristles are provided on the circumferential surface of the roller body, and the bristles comprise: a plurality of first hard bristle bundles distributed on the circumferential surface of the roller body along the circumferential direction, wherein the first hard bristle bundle comprises at least one first hard bristle; a plurality of first soft bristle bundles and a plurality of second soft bristle bundles distributed on the circumferential surface of the roller body, wherein the first soft bristle bundle and the second soft bristle bundle are respectively located on both sides of the first hard bristle bundle in the axial direction of the roller body, wherein the first soft bristle bundle comprises at least one first soft bristle, and the second soft bristle bundle comprises at least one second soft bristle.

[0005] When the above-mentioned roller brush is used to clean the surface to be cleaned, the first hard bristle bundle has a relatively high hardness and can effectively clean the cracks in the floor. The first soft bristle bundle and the second soft bristle bundle on both sides can quickly clean the ground. In this way, the cracks in the floor and the ground can be cleaned simultaneously, which greatly improves the efficiency of cleaning the cracks in the floor. In actual operation, even if the first hard bristle bundle is not aligned with the cracks in the floor, it will not affect the cleaning effect. It only needs to be repeatedly cleaned several times to achieve effective cleaning of the cracks in the floor and the ground. Compared with traditional technologies, the roller brush of the above-mentioned embodiment only needs one or more cleanings to achieve effective cleaning of the cracks in the floor and the ground. There is no need to clean the cracks in the floor separately first and then clean the ground a second time. It also avoids the problem that scattered objects will be swept into the cracks in the second cleaning of the ground, affecting the cleaning effect.

[0006] In one embodiment, the roller body includes a left roller body and a right roller body that are detachably connected together along the axial direction of the roller body, the first soft brush bristle bundle is arranged on the left roller body, and the second soft brush bristle bundle is arranged on the right roller body; the first hard brush bristle bundle is clamped between the left roller body and the right roller body.

[0007] In one embodiment, the left roller body and the right roller body are both hollow so that the roller body has an inner cavity, and the left roller body and the right roller body are fastened together by bolts and nuts, and the bolts and nuts are located in the inner cavity.

[0008] In one embodiment, the first hard bristles, the first soft bristles, and the second soft bristles are made of the same material, the diameter of the first soft bristles and the diameter of the second soft bristles are both smaller than the diameter of the first hard bristles, and the height of the first soft bristle bundle and the second soft bristle bundle are both smaller than the height of the first hard bristle bundle.

[0009] In one embodiment, a gap is formed between the left roller body and the right roller body for inserting the first hard brush bristle bundle, and the gap includes a clamping area and an anti-slip area; the first hard brush bristle bundle includes a fixing portion, and the fixing portion is also provided with an anti-slip portion, and the fixing portion is fixed in the clamping area, and the anti-slip portion cooperates with the clamping area to limit the first hard brush bristle bundle from moving away from the axis of the roller body in the radial direction of the roller body.

[0010] In one embodiment, the anti-slip portion includes a first arm and a second arm respectively connected to the fixing portion and forming a cantilever structure. A protrusion is provided in the anti-slip area, and the protrusion is located in the gap between the first arm and the second arm.

[0011] In one embodiment, in the radial direction of the roller body, the first arm extends from the fixing portion close to the axis of the roller body, and the second arm extends from the fixing portion away from the axis of the roller body.

[0012] In one embodiment, a second hard brush bristle bundle and a third hard brush bristle bundle are respectively provided at both ends of the roller body in the axial direction. The second hard brush bristle bundle is arranged on the side of the first soft brush bristle bundle away from the first hard brush bristle bundle and is distributed on the circumferential surface of the roller body along the circumferential direction. The third hard brush bristle bundle is arranged on the side of the second soft brush bristle bundle away from the first hard brush bristle bundle and is distributed on the circumferential surface of the roller body along the circumferential direction. The heights of the second hard brush bristle bundle, the third hard brush bristle bundle, the first soft brush bristle bundle and the second soft brush bristle bundle are equal.

[0013] In one embodiment, the second and third stiff bristle bundles are mirror-symmetrical with respect to the first stiff bristle bundle.

[0014] A cleaning device is also proposed, comprising: a housing; a roller brush as described in any one of the aforementioned embodiments, wherein the roller brush is rotatably supported by the housing; and a driving mechanism disposed in the housing for driving the roller brush to rotate.

[0015] Beneficial effects:

[0016] The roller brush of the present invention is provided with a first soft bristle bundle and a second soft bristle bundle on the roller body, and a first hard bristle bundle is further provided between the first soft bristle bundle and the second soft bristle bundle. In this way, when the roller brush cleans the surface to be cleaned, the first hard bristle bundle can be used to clean the floor cracks, and the first soft bristle bundle and the second soft bristle bundle can be used to clean the ground. The user only needs to clean once or multiple times to effectively clean the floor cracks and the ground. There is no need to clean the floor cracks separately first and then clean the ground a second time. It also avoids the scattered objects being swept into the floor cracks during the second cleaning of the ground, affecting the cleaning effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 Schematic diagram of the structure of a roller brush according to an embodiment of the present invention.

[0018] Figure 2 To have Figure 1 The schematic structural diagram of the roller brush cleaning device shown.

[0019] Figure 3 for Figure 2 A partial cross-sectional view of the cleaning device shown.

[0020] Figure 4 A schematic cross-sectional view of a roller brush according to another embodiment of the present invention.

[0021] Figure 5 This is a schematic cross-sectional view of a roller brush according to another embodiment of the present invention, illustrating the structure of the gap between the left roller body and the right roller body.

[0022] Figure 6 for Figure 5 Schematic diagram of the structure of the first hard bristle bundle in the roller brush shown in .

[0023] The corresponding numbers of the relevant components in the figure are as follows:

[0024] 100. Roller brush; 10. Roller body; 110. Left roller body; 120. Right roller body; 130. Gap; 131. Clamping area; 132. Anti-slip area; 133. Protrusion; 140. Bolt; 150. Nut; 160. Rotating shaft; 170. Bearing; 20. First hard bristle bundle; 210. Fixing part; 220. First arm; 230. Second arm; 30. First soft bristle bundle; 40. Second soft bristle bundle; 50. Second hard bristle bundle; 60. Third hard bristle bundle; 200. Cleaning device; 201. Shell; 202. Motor; 203. Conveyor belt; 204. Handle. DETAILED DESCRIPTION

[0025] To make the above-mentioned objects, features, and advantages of the present invention more readily apparent, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings. The following description sets forth numerous specific details to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways than those described herein, and those skilled in the art may make similar modifications without departing from the scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0026] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying 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 limiting the present invention.

[0027] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0028] In the present invention, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0029] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0030] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0031] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings.

[0032] like Figure 1 As shown, Figure 1 1 is a side view of a roller brush 100 according to an embodiment of the present invention; Figure 2 To have Figure 1 A schematic structural diagram of a cleaning device 200 of a roller brush 100 is shown; Figure 3 2 is a partial cross-sectional schematic diagram of the cleaning device 200 , illustrating the installation structure of various components inside the housing 201 of the cleaning device 200 .

[0033] like Figure 1 As shown, the roller brush 100 of this embodiment includes a roller body 10, and bristles are provided on the circumferential surface of the roller body 10, wherein the roller body 10 is rotatably supported on the housing 201 of the cleaning device 200 and rotates under the drive of the driving mechanism, so that the bristles rotate around the axis to perform cleaning operations. Figure 3 As shown, in the working state, the housing 201 of the cleaning device 200 is located above the roller brush 100 and covers the upper part of the roller brush 100 and exposes the bottom of the roller brush 100 to the outside, so that the bristles on the roller body 10 can clean the surface to be cleaned.

[0034] Specifically, the roller body 10 is cylindrical, with both axial ends of the roller body 10 rotatably connected to the housing 201 of the cleaning device 200. The bristles include a plurality of first hard bristle bundles 20, a plurality of first soft bristle bundles 30, and a plurality of second soft bristle bundles 40, which are distributed on the circumferential surface of the roller body 10. The bristle bundles are distributed on the circumferential surface of the roller body 10, meaning they are distributed along the circumference of the roller body 10. Each bristle bundle can be directly or indirectly fixed to the roller body 10.

[0035] In the embodiments of the present invention, "hard" and "soft" are relative terms. Specifically, with respect to the first hard bristle bundle 20, the first soft bristle bundle 30, and the second soft bristle bundle 40, it means that the hardness of the first hard bristle bundle 20 is greater than that of the first soft bristle bundle 30 and the second soft bristle bundle 40; in other words, in terms of the bending deformation under the same force, the bending deformation of the first hard bristle bundle 20 is smaller than that of the first soft bristle bundle 30, and smaller than that of the second soft bristle bundle. Compared with the first hard bristle bundle 20, the first soft bristle bundle 30 and the second soft bristle bundle 40 are both soft bristles. The hardness of the first soft bristle bundle 30 and the second soft bristle bundle 40 can be the same or slightly different. Preferably, the hardness of the first soft bristle bundle 30 and the second soft bristle bundle 40 are the same, and the bending deformation of the two under the same force is the same.

[0036] A plurality of first stiff bristle bundles 20 are circumferentially distributed on the circumferential surface of the roller body 10, forming an annular stiff bristle loop. This stiff bristle loop is located axially in the center of the roller body 10. A plurality of first soft bristle bundles 30 and a plurality of second soft bristle bundles 40 are also distributed on the circumferential surface of the roller body 10. The first and second soft bristle bundles 30, 40 are located on either side of the first stiff bristle bundle 20 in the axial direction of the roller body 10. The arrangement of the first and second soft bristle bundles 30, 40 is not limited. In this embodiment, the plurality of first soft bristle bundles 30 are arranged in a spiral pattern on the circumferential surface of the roller body 10, and the plurality of second soft bristle bundles 40 are arranged in a spiral pattern on the circumferential surface of the roller body 10. In other embodiments, the plurality of first soft bristles can be arranged to form a plurality of soft bristle loops arranged axially along the roller body 10; similarly, the plurality of second soft bristles can be arranged to form a plurality of soft bristle loops arranged axially along the roller body 10.

[0037] The first stiff bristle bundle 20 includes at least one first stiff bristle. In other words, each first stiff bristle bundle 20 can be a single stiff bristle or a plurality of stiff bristles bundled together. Therefore, for the first stiff bristle bundle 20, the diameter of the first stiff bristle bundle 20 refers to the diameter of the single stiff bristle, or the diameter of the bundle of multiple stiff bristles, more specifically, the diameter of the radial cross-sectional profile circle of the bundle. Bundling here refers to arranging multiple stiff bristles parallel to each other and concentrating them in the arrangement area of the first stiff bristle bundle 20, thereby forming a first stiff bristle brush bundle. When the diameter of the first stiff bristle bundle 20 remains unchanged, the more stiff bristles that form the first stiff bristle brush bundle, the thinner the diameter of the single stiff bristle.

[0038] The first soft bristle bundle 30 includes at least one soft bristle, that is, each first soft bristle bundle 30 can be a single soft bristle or a bundle of multiple soft bristles. Therefore, for the first soft bristle bundle 30, the diameter of the first soft bristle bundle 30 refers to the diameter of a single soft bristle or the diameter of a bundle of multiple soft bristles.

[0039] Similarly, the second soft bristle bundle 40 includes at least one second soft bristle, that is, each second soft bristle bundle 40 can be a single soft bristle or a bundle of multiple soft bristles. Therefore, for the second soft bristle bundle 40, the diameter of the second soft bristle bundle 40 refers to the diameter of a single soft bristle or the diameter of a bundle of multiple soft bristles.

[0040] Combine Figure 2 and Figure 3 As shown, when using the roller brush 100 to clean floor tiles or similar surfaces to be cleaned, the driving mechanism of the cleaning device 200 drives the roller brush 100 to rotate about its axis, and each bristle bundle rotates about its axis. The first stiff bristle bundle 20 has a relatively high hardness and can effectively clean the cracks in the floor. The first soft bristle bundle 30 and the second soft bristle bundle on both sides can quickly clean the ground. In this way, the cracks and the ground are cleaned simultaneously, greatly improving the efficiency of cleaning the cracks. In actual operation, even if the first stiff bristle bundle 20 is not aligned with the cracks, it will not affect the cleaning effect. Only a few repeated cleanings are needed to effectively clean the cracks and the ground.

[0041] Compared with traditional technology, when the roller brush 100 of the above embodiment cleans the surface to be cleaned, it only needs one or more sweeps to achieve effective cleaning of the floor cracks and the ground. There is no need to clean the floor cracks separately first and then clean the ground a second time. It also avoids the problem that scattered objects will be swept into the floor cracks during the second cleaning of the ground, affecting the cleaning effect.

[0042] In practice, the conditions of cracks on the surface to be cleaned vary, with some cracks classified as "light-duty" and others as "heavy-duty." For example, "light-duty cracks" may contain only windblown debris, such as dust, leaves, and hair, making them relatively easy to clean. "Heavy-duty cracks" may contain firmly bonded debris, such as cement, or heavy debris, such as screws and needles, making them difficult to clean.

[0043] In order to more effectively cope with the cleaning needs under the above-mentioned different working conditions, in some embodiments of the present invention, the roller brush 100 of the above-mentioned embodiment is further improved respectively, so that the improved roller brush 100 can better adapt to the cleaning needs of "light working condition floor cracks" and "heavy working condition floor cracks" respectively.

[0044] Specifically, in order to adapt to the cleaning of "light-duty floor cracks", in some embodiments of the present invention, the first hard bristles, the first soft bristles, and the second soft bristles are made of the same flexible material. At this time, the diameter of the first soft bristles and the diameter of the second soft bristles are both smaller than the diameter of the first hard bristles, so that the first hard bristle bundle 20 is a hard bristle bundle compared to the first soft bristle bundle 30 and the second soft bristle bundle 40.

[0045] The height of the first soft bristle bundle 30 and the height of the second soft bristle bundle 40 are both set to be smaller than the height of the first stiff bristle bundle 20. In other words, the height of the first stiff bristle bundle 20 is the largest. In the embodiment of the present invention, the "height" (also called the length) of the bristle bundle refers to the distance from the top end of each bristle bundle (the end away from the roller body 10) to the axis X of the roller body 10 in the radial direction of the roller body 10.

[0046] Because the first stiff bristle bundle 20 is relatively tall, when the first soft bristle bundle 30 and the second soft bristle bundle 40 both touch the ground, the first stiff bristle bundle 20 can extend into the crack in the ground. Since the first stiff bristles, first soft bristles, and second soft bristles are made of the same material, their bending deformation amounts are the same or substantially the same. When the first soft bristle bundle 30 and the second soft bristle bundle 40 touch the ground and deform, the first stiff bristle bundle 20 can also reach and clean the scattered objects in the crack in the ground. The phenomenon of the first soft bristle bundle 30 and the second soft bristle bundle 40 touching the ground and causing the first stiff bristle bundle 20 to "hang in the air" will not occur, thereby ensuring the cleaning effect of the first stiff bristle bundle 20 on the crack in the ground. In specific implementation, the height difference between the first stiff bristle bundle 20 and the first soft bristle bundle 30 and the second soft bristle bundle 40 varies accordingly depending on the depth of the crack in the ground. Generally, the crack depth is 5mm-10mm, and the aforementioned height difference is set to 5mm-10mm.

[0047] In a specific embodiment, the first hard bristles, the first soft bristles, and the second soft bristles are all bristles made of nylon material or the like. Among them, the diameter range of the first hard bristle bundle 20 is 4mm-6mm, which is composed of multiple nylon bristles with a diameter range of 0.8mm-1.2mm, and can cope with ground cracks with a width of 5mm to 10mm. Preferably, the diameter of the first hard bristles in the first hard bristle bundle 20 is 1mm, which has good hardness and toughness. The first soft bristle bundle 30 includes a first soft bristle with a diameter of 0.4mm. The second soft bristle bundle 40 includes a second soft bristle with a diameter of 0.4mm. The height difference between the first hard bristle bundle 20 and the first soft bristle bundle 30 and the second soft bristle bundle 40 is 8mm, and it can operate on the surface to be cleaned with a ground crack depth of 5mm-10mm.

[0048] In addition, there are no specific restrictions on the diameters of the bristle bundles. For example, the diameter of the first stiff bristle bundle 20 can be equal to or different from the diameter of the first soft bristle bundle 30. For example, the diameter of the first stiff bristle bundle 20 is 5 mm, and the diameter of the first stiff bristles in the first stiff bristle bundle 20 is 1 mm; the diameter of the first soft bristle bundle 30 is 5 mm, and the diameter of the first soft bristles is 0.5 mm. For another example, the diameter of the first stiff bristle bundle 20 is 5 mm, and the diameter of the first stiff bristles in the first stiff bristle bundle 20 is 1 mm; the diameter of the first soft bristle bundle 30 is 4 mm, and the diameter of the first soft bristles is 0.4 mm.

[0049] To meet the cleaning needs of "heavy-duty floor cracks," in some embodiments of the present invention, the first hard bristles are metal bristles, and the first and second soft bristles are nylon bristles. The height of the first soft bristle bundle 30 and the height of the second soft bristle bundle 40 are no less than the height of the first hard bristle bundle 20. The specific type of metal is not limited, as long as its bending deformation is smaller than that of nylon bristles under the same force. For example, iron wire, stainless steel wire, etc. can be used. The height of the first soft bristle bundle 30 and the height of the second soft bristle bundle 40 are no less than the height of the first hard bristle bundle 20. The height of the first soft bristle bundle 30 and the height of the second soft bristle bundle 40 can be greater than the height of the first hard bristle bundle 20, or the height of the first soft bristle bundle 30 and the height of the second soft bristle bundle 40 can be the same as the height of the first hard bristle bundle 20.

[0050] When the roller brush 100 of this embodiment is used to clean the surface to be cleaned, since the height of the first soft bristle bundle 30 and the height of the second soft bristle bundle 40 are not lower than the height of the first hard bristle bundle 20, the first soft bristle bundle 30 and the second soft bristle bundle 40 will first contact the ground and produce a large bending deformation, so that the first hard bristle bundle 20 can enter the ground crack and then contact the scattered objects in the ground crack for cleaning.

[0051] In addition, since the height of the first soft bristle bundle 30 and the height of the second soft bristle bundle 40 are not lower than the height of the first hard bristle bundle 20, when the first hard bristle bundle 20 contacts the scattered objects in the ground cracks, the first soft bristle bundle 30 and the second soft bristle bundle 40 can maintain contact with the ground. Therefore, the user can use relatively small force to press the roller body 10 to the ground and keep the first soft bristle bundle 30 and the second soft bristle bundle 40 in contact with the ground. Therefore, the cleaning device 200 has a small load and is easy for the user to operate.

[0052] In this embodiment, the difference between the diameter of the first stiff bristles and the diameters of the second and third soft bristles can be appropriately reduced. Specifically, the first soft bristle bundle 30 includes a first soft bristle with a diameter of 0.4 mm, and the second soft bristle bundle 40 includes a second soft bristle with a diameter of 0.4 mm. In this case, the diameter of the first stiff bristles can be less than 0.8 mm. Furthermore, the diameter of the first stiff bristles can be equal to the diameters of the second and third soft bristles.

[0053] The working environment of "heavy duty floor cracks" is harsh. Even if the hardness of the first stiff bristle bundle 20 is further increased, the loss rate of the first stiff bristle bundle 20 may be greater than the loss rate of the first stiff bristle bundle 20 in the working environment of "light duty floor cracks". Therefore, based on the previous embodiment, the roller brush 100 is further improved in one embodiment of the present invention.

[0054] Specifically, such as Figure 4 As shown, the roller body 10 includes a left roller body 110 and a right roller body 120 that are detachably connected together along the axial direction of the roller body 10. The first soft bristle bundle 30 is provided on the left roller body 110, and the second soft bristle bundle 40 is provided on the right roller body 120. The first stiff bristle bundle 20 is clamped between the left roller body 110 and the right roller body 120. Due to the above-mentioned detachable structure, when the first stiff bristle bundle 20 is significantly worn, the roller body 10 can be removed from the housing 201, and then the roller body 10 can be disassembled to replace the first stiff bristle bundle 20.

[0055] When implementing it specifically, Figure 5 As shown, after the left roller body 110 and the right roller body 120 are connected, a gap 130 is formed between the two for the first hard brush bristle bundle 20 to be inserted. The gap 130 is formed with a clamping area 131 and an anti-slip area 132. In the axial direction of the roller body 10, the size of the clamping area 131 is smaller than the size of the anti-slip area 132. The anti-slip area 132 is provided with two protrusions 133 located on the left roller body 110 and the right roller body 120 respectively. Figure 6 As shown, the first hard bristle bundle 20 includes a fixing portion 210, wherein anti-slip portions are respectively provided on both sides of the fixing portion 210, and the anti-slip portions include a first arm 220 and a second arm 230 respectively connected to the fixing portion 210 and in a cantilever structure; and in the radial direction of the roller body 10, the first arm 220 extends from the fixing portion 210 close to the axis of the roller body 10, and the second arm 230 extends from the fixing portion 210 away from the axis of the roller body 10, and there is a gap between the first arm 220 and the second arm 230.

[0056] Combine Figures 4 to 6When the first hard bristle bundle 20 is installed on the roller body 10, the fixing portion 210 extends into the clamping area 131 and is clamped in the middle by the left roller body 110 and the right roller body 120. The anti-slip portion cooperates with the clamping area 131 to limit the movement of the first hard bristle bundle 20 away from the axis X of the roller body in the radial direction of the roller body 10. Specifically, the protrusion 133 extends into the gap between the first arm 220 and the second arm 230. If the first arm 220 is located above the protrusion 133, the second arm 230 is located below the protrusion 133. In other words, the protrusion 133 is located on the moving path of the first arm 220 and the second arm 230, so the protrusion 133 can prevent the first hard bristle bundle 20 from being excessively inserted downward, and at the same time, the protrusion 133 can prevent the first hard bristle bundle 20 from moving upward, thereby preventing the first hard bristle bundle 20 from accidentally escaping from the clamping area 131.

[0057] Since the first arm 220 and the second arm 230 are both cantilever structures, wherein the second arm 230 extends from the fixed portion 210 away from the axis of the roller body 10, when the first hard bristle bundle 20 is installed on the roller body 10, the second arm 230 is deformed and approaches the fixed portion 210 when it is squeezed by the protrusion 133 from the fixed portion 210, thereby facilitating the insertion of the first hard bristle bundle 20; the first arm 220 extends from the fixed portion 210 close to the axis of the roller body 10, and the first arm 220 is deformed and away from the fixed portion 210 when it is squeezed by the protrusion 133, thereby achieving the above-mentioned purpose of preventing the first hard bristle bundle 20 from being excessively inserted downward.

[0058] In specific implementation, the left roller body 110 and the right roller body 120 are detachably connected using bolts 140 and nuts 150. Figure 4 As shown, both the left roller body 110 and the right roller body 120 are hollow, resulting in an inner cavity in the assembled roller body 10. A bolt 140 and a nut 150 are located within the inner cavity. The head of the bolt 140 is located within the right roller body 120. The bolt 140 extends out of the right roller body 120 and enters the left roller body 110, where it is secured by the nut 150. In this embodiment, the bolt 140 and nut 150 connecting the left and right roller bodies 110 and 120 are concealed within the roller body 10 and do not affect the arrangement of bristles on the outer surface of the roller body 10.

[0059] Further, with Figure 3 The roller body 10 shown is similar, as shown in FIG. Figure 4As shown, in this embodiment, the left end of the left roller body 110 (the end away from the right roller body 120) is used to connect to the housing 201, and the right end of the right roller body 120 (the end away from the left roller body 110) is used to connect to the housing 201. Since the left roller body 110 and the right roller body 120 are both hollow, the left end of the left roller body 110 and the right end of the right roller body 120 can be installed with bearings 170 and connected to the rotating shaft 160 on the housing 201. In other words, the left roller body 110 and the right roller body 120 are both hollow, which is used to achieve cooperation with the rotating shaft 160 on the housing 201 and realize the hidden design of the bolt 140 and nut 150 connecting the left roller body 110 and the right roller body 120.

[0060] Based on any of the above embodiments, the first soft bristle bundle 30 and the second soft bristle bundle 40 are both spirally arranged on the circumferential surface of the roller body 10. The first soft bristle bundle 30 and the second soft bristle bundle 40 are spirally arranged. When the roller body 10 rotates, the first soft bristle bundle 30 and the second soft bristle bundle 40 can gather fallen objects toward the front of the moving direction of the roller body 10, thereby improving cleaning efficiency.

[0061] Based on any of the above embodiments, in one embodiment, a second hard brush bundle 50 and a third hard brush bundle 60 are respectively provided at both ends of the roller body 10 in the axial direction. The second hard brush bundle 50 and the third hard brush bundle 60 are used to keep the roller brush 100 balanced.

[0062] Specifically, the second hard brush bristle bundle 50 is arranged on the side of the first soft brush bristle bundle 30 away from the first hard brush bristle bundle 20 and is distributed on the circumferential surface of the roller body 10 along the circumferential direction, and the third hard brush bristle bundle 60 is arranged on the side of the second soft brush bristle bundle 40 away from the first hard brush bristle bundle 20 and is distributed on the circumferential surface of the roller body 10 along the circumferential direction. The heights of the second hard brush bristle bundle 50, the third hard brush bristle bundle 60, the first soft brush bristle bundle 30 and the second soft brush bristle bundle 40 are equal.

[0063] The second stiff bristle bundle 50 and the third stiff bristle bundle 60 are both stiff bristles compared to the first soft bristle bundle 30 and the second soft bristle bundle 40. That is, the second stiff bristle bundle 50 and the third stiff bristle bundle 60 are stiffer, and when subjected to the same force, the second stiff bristle bundle 50 and the third stiff bristle bundle 60 are less subject to bending deformation. The second stiff bristle bundle 50 can include a single bristle or a plurality of bristles in a bundle. The diameter of the second stiff bristle bundle 50 refers to the diameter of a single bristle, or the diameter of a bundle of multiple bristles. The third stiff bristle bundle 60 can include a single bristle or a plurality of bristles in a bundle. The diameter of the third stiff bristle bundle 60 refers to the diameter of a single bristle, or the diameter of a bundle of multiple bristles.

[0064] In a specific configuration, the bristles of the second stiff bristle bundle 50, the third stiff bristle bundle 60, the first soft bristle bundle 30, and the second soft bristle bundle 40 are all nylon bristles, and the bristle diameters of the second stiff bristle bundle 50 and the third stiff bristle bundle 60 are equal; the bristle diameters of the first soft bristle bundle 30 and the second soft bristle bundle 40 are equal, but smaller than the bristle diameters of the second stiff bristle bundle 40 and the third stiff bristle bundle 60. In addition, it should be noted that there is no specific limitation on the diameters of the second stiff bristle bundle 50, the third stiff bristle bundle 60, the first soft bristle bundle 30, and the second soft bristle bundle 40.

[0065] When the roller brush 100 is used to clean the floor, the second hard bristle bundle 50, the third hard bristle bundle 60, the first soft bristle bundle 30 and the second soft bristle bundle 40 are of equal height, so they will contact the floor at the same time. Since the second hard bristle bundle 50 and the third hard bristle bundle 60 are relatively hard, the second hard bristle bundle 50 and the third hard bristle bundle 60 support the roller body 10 from both ends of the roller brush 100 to maintain balance, so that the first soft bristle bundle 30 and the second soft bristle bundle 40 can clean the floor normally.

[0066] In addition, the second hard brush bristle bundle 50 and the third hard brush bristle bundle 60 are arranged at both ends of the roller body 10. In addition to maintaining the balance of the roller body 10, the second hard brush bristle bundle 50 and the third hard brush bristle bundle 60 can also be used to clean edge gaps (such as wall edge gaps), thereby making the roller brush 100 of this embodiment have more comprehensive cleaning capabilities.

[0067] In a preferred embodiment, the second and third stiff bristle bundles 50, 60 are mirror-symmetrical with respect to the first stiff bristle bundle 20. The second and third stiff bristle bundles 50, 60 are symmetrically arranged, and their arrangement is identical. During the rolling cleaning process of the roller brush 100, the second and third stiff bristle bundles 50, 60 can maintain the same balance at all times. Furthermore, the second and third stiff bristle bundles 50, 60 can be of exactly the same type.

[0068] In the above embodiments, when specifically set, the first soft bristle bundle 30 and the second soft bristle bundle 40 are also set to be mirror-symmetrical with respect to the first hard bristle bundle 20. For example, the multiple first soft bristle bundles 30 and the multiple second soft bristle bundles 40 are all spirally distributed and symmetrically arranged. In other embodiments, the multiple first soft bristle bundles 30 and the multiple second soft bristle bundles 40 can also be asymmetrical, for example, the multiple first soft bristle bundles 30 are formed into a single helical structure, and the multiple second soft bristle bundles 40 are formed into a double helical structure. It should be noted that regardless of whether the multiple first soft bristle bundles 30 and the multiple second soft bristle bundles 40 are symmetrical, it does not affect the balancing function provided by the second hard bristle bundle 50 and the third hard bristle bundle 60.

[0069] Combine Figure 2 and Figure 3 As shown, an embodiment of the present invention further provides a cleaning device 200, which includes Figure 1 The roller brush 100 , the housing 201 , and the driving mechanism disposed in the housing 201 of the illustrated embodiment.

[0070] like Figure 3 As shown, the bottom of the shell 201 is open, and the roller brush 100 is partially embedded in the shell 201 from the bottom. The two ends of the roller brush 100 are rotatably connected to the shell 201 through the rotating shaft 160, wherein one end of the rotating shaft 160 is embedded in the roller body 10, and the other end of the rotating shaft 160 is supported on the shell 201 through the bearing 170. The driving mechanism includes a motor 202 and a transmission mechanism, wherein the transmission mechanism includes a conveyor belt 203, and the conveyor belt 203 is connected to the output shaft of the motor 202 and the rotating shaft 160. Therefore, when the motor 202 is working, it drives the roller brush 100 to rotate around the axis. Figure 2 As shown, a handle 204 is further provided on the side of the housing 201 facing away from the roller brush 100. One end of the handle 204 is fixed to the housing 201, and the other end of the handle 204 is used for holding and operating.

[0071] When the above-mentioned cleaning device 200 is working, the user holds the handle 204 and pushes the shell 201 forward. At the same time, the motor 202 drives the roller brush 100 to rotate through the transmission mechanism, wherein the first hard brush bundle 20 can effectively clean the floor cracks, and the first soft brush bundle 30 and the second soft brush bundle on both sides can quickly clean the ground. In this way, the floor cracks and the ground can be cleaned at the same time, which greatly improves the efficiency of cleaning the floor cracks.

[0072] In addition, the roller brush 100 in the cleaning device 200 of this embodiment can be replaced by Figure 4 The installation method and working principle of the roller brush 100 shown are not described in detail.

[0073] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0074] The above-described embodiments merely illustrate several implementations of the present invention, and while their descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the patent for this invention shall be determined by the appended claims.

Claims

1. A roller brush comprising a roller body, wherein bristles are provided on the circumferential surface of the roller body, wherein: The bristles include: a plurality of first hard bristle bundles distributed on the circumferential surface of the roller body along the circumferential direction, wherein the first hard bristle bundle includes at least one first hard bristle; A plurality of first soft bristle bundles and a plurality of second soft bristle bundles are distributed on the circumferential surface of the roller body, the first soft bristle bundle and the second soft bristle bundle are respectively located on both sides of the first hard bristle bundle in the axial direction of the roller body, the first soft bristle bundle includes at least one first soft bristle, and the second soft bristle bundle includes at least one second soft bristle; The roller body includes a left roller body and a right roller body which are detachably connected together along the axial direction of the roller body, and the first hard brush bristle bundle is clamped between the left roller body and the right roller body, and a gap is formed between the left roller body and the right roller body for the first hard brush bristle bundle to be inserted, and the gap includes a clamping area and an anti-slip area; the first hard brush bristle bundle includes a fixing part, and the fixing part is also provided with an anti-slip part, and the fixing part is fixed in the clamping area, and the anti-slip part cooperates with the clamping area to limit the first hard brush bristle bundle from moving away from the axis of the roller body in the radial direction of the roller body, and the anti-slip part includes a first arm and a second arm respectively connected to the fixing part and in a cantilever structure, and a protrusion is provided in the anti-slip area, and the protrusion is located in the interval between the first arm and the second arm, and in the radial direction of the roller body, the first arm extends from the fixing part close to the axis of the roller body, and the second arm extends from the fixing part away from the axis of the roller body.

2. The roller brush according to claim 1, characterized in that The first soft bristle bundle is arranged on the left roller body, and the second soft bristle bundle is arranged on the right roller body.

3. The roller brush according to claim 2, characterized in that The left roller body and the right roller body are both hollow so that the roller bodies have an inner cavity. The left roller body and the right roller body are fastened together by bolts and nuts, and the bolts and nuts are located in the inner cavity.

4. The roller brush according to claim 1, characterized in that The first hard bristles, the first soft bristles and the second soft bristles are made of the same material, the diameter of the first soft bristles and the diameter of the second soft bristles are both smaller than the diameter of the first hard bristles, and the height of the first soft bristle bundle and the second soft bristle bundle are both smaller than the height of the first hard bristle bundle.

5. The roller brush according to claim 1, characterized in that The roller body is further provided with a second hard brush bristle bundle and a third hard brush bristle bundle at both ends in the axial direction, respectively. The second hard brush bristle bundle is arranged on the side of the first soft brush bristle bundle away from the first hard brush bristle bundle and is distributed on the circumferential surface of the roller body along the circumferential direction. The third hard brush bristle bundle is arranged on the side of the second soft brush bristle bundle away from the first hard brush bristle bundle and is distributed on the circumferential surface of the roller body along the circumferential direction. The heights of the second hard brush bristle bundle, the third hard brush bristle bundle, the first soft brush bristle bundle and the second soft brush bristle bundle are equal.

6. The roller brush according to claim 5, characterized in that The second and third stiff bristle bundles are mirror-symmetrical with respect to the first stiff bristle bundle.

7. A cleaning device, characterized in that: include: case; The roller brush according to any one of claims 1 to 6, wherein the roller brush is rotatably supported on the housing. The driving mechanism is arranged in the housing and is used for driving the roller brush to rotate.

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