Rolling brush, cleaning brush head and cleaning equipment

Abstract

The utility model provides a rolling brush, a cleaning brush head and cleaning equipment, and the rolling brush comprises an inner cylinder, the surface of which is provided with a plurality of first water outlet holes; the outer cylinder is configured to rotate around the inner cylinder, and a plurality of second water outlet holes are formed in the surface of the outer cylinder; wherein the multiple second water outlet holes are arranged at intervals in the axial direction of the outer barrel, at least three rows of second water outlet holes arranged at intervals are formed in the circumferential direction of the outer barrel, and all the rows of second water outlet holes are evenly distributed in the circumferential direction of the outer barrel. The rolling brush is provided with the inner cylinder and the outer cylinder, the second water outlet holes are formed in the surface of the outer cylinder in a penetrating mode, and the second water outlet holes are formed in the surface of the outer cylinder at intervals. And in response to the situation that the rolling brush is in the working state, cleaning liquid flows to a cleaning piece or a to-be-cleaned surface of the rolling brush through the first water outlet hole and the second water outlet hole. The problem that the structure for spraying the cleaning liquid on the operation surface is complex is solved, the structure is simple, operation is convenient, and the use experience feeling of a user is improved.

Description

Technical Field

[0001] This disclosure relates to the field of cleaning equipment technology, and more specifically, to a roller brush, a cleaning brush head, and a cleaning device. Background Technology

[0002] In addition to traditional vacuum cleaners, there are also wet cleaning devices on the market, such as floor scrubbers. These devices can spray cleaning liquid onto the roller brush or the surface to be cleaned to perform wet cleaning, thus achieving effects such as sterilization, mopping, and removal of stubborn stains that traditional vacuum cleaners cannot achieve.

[0003] Most current wet cleaning equipment consists of a cleaning liquid storage tank and fluid distributor mounted on the machine body, with pipes and sprayers installed at corresponding positions on the floor brush. The cleaning liquid is then sprayed directly onto the roller brush or the surface to be cleaned via the sprayer. However, the structure used in current cleaning equipment to achieve this function makes the machine body and brush head structure relatively complex, which not only hinders production but also increases the difficulty of maintenance. Utility Model Content

[0004] The purpose of this disclosure is to address the technical problems in related technologies by providing a roller brush, a cleaning brush head, and a cleaning device. The specific solution is as follows:

[0005] A first aspect of this disclosure provides a roller brush, comprising: an inner cylinder having a plurality of first water outlet holes on its surface; and an outer cylinder configured to rotate around the inner cylinder, the outer cylinder having a plurality of second water outlet holes on its surface; wherein the plurality of second water outlet holes are spaced apart along the axial direction of the outer cylinder, and the spaced-apart second water outlet holes are arranged in at least three rows in the circumferential direction of the outer cylinder, and each row is evenly distributed along the circumferential direction of the outer cylinder.

[0006] In some embodiments, in the at least three rows of second water outlet holes, the second water outlet holes in each row are generally aligned in the circumferential direction.

[0007] In some embodiments, in the at least three rows of second water outlet holes, the second water outlet holes in each row are staggered in the circumferential direction.

[0008] In some embodiments, the inner cylinder is provided with at least one row of the first water outlet holes.

[0009] In some embodiments, the number of rows of the first water outlet is the same as the number of rows of the second water outlet.

[0010] In some embodiments, the spacing between the first water outlet holes and the spacing between the second water outlet holes are the same along the axial direction of the brush body.

[0011] In some embodiments, the roller brush further includes a water distribution structure disposed inside the inner cylinder and configured to allow the cleaning fluid to flow out uniformly from a plurality of the first water outlet holes.

[0012] In some embodiments, the aperture sizes of the plurality of first water outlet holes may be the same or different.

[0013] In some embodiments, a plurality of first water outlets and a plurality of second water outlets are arranged radially in a corresponding manner.

[0014] In some embodiments, the diameter of the first water outlet hole upstream of the inner cylinder surface is larger than the diameter of the first water outlet hole downstream.

[0015] A second aspect of this disclosure provides a roller brush, comprising: an inner cylinder having a plurality of first water outlet holes on its surface, the plurality of first water outlet holes being spaced apart along the axial direction of the inner cylinder, the spaced-apart first water outlet holes being arranged in at least three rows along the circumference of the inner cylinder, and each row being evenly distributed along the circumference of the inner cylinder; and an outer cylinder configured to rotate around the inner cylinder, the outer cylinder having a plurality of second water outlet holes on its surface; wherein the plurality of second water outlet holes are evenly arranged along the outer surface of the outer cylinder.

[0016] In some embodiments, the spacing between the second water outlet holes is smaller than the spacing between the first water outlet holes.

[0017] In some embodiments, the roller brush further includes a water distribution structure disposed inside the inner cylinder and configured to allow the cleaning fluid to flow out uniformly from a plurality of the first water outlet holes.

[0018] In some embodiments, the aperture sizes of the plurality of first water outlet holes may be the same or different.

[0019] In some embodiments, a plurality of first water outlets and a plurality of second water outlets are arranged radially in a corresponding manner.

[0020] In some embodiments, the diameter of the first water outlet hole upstream of the inner cylinder surface is larger than the diameter of the first water outlet hole downstream.

[0021] A third aspect of this disclosure provides a cleaning brush head, including: a roller brush provided by the first or second aspect of this disclosure.

[0022] A fourth aspect of this disclosure provides a cleaning device, comprising: a cleaning brush head provided in the third aspect of this disclosure.

[0023] Compared with related technologies, the above-described solutions of this disclosure have at least the following beneficial effects:

[0024] The roller brush disclosed herein has an inner cylinder and an outer cylinder. The inner cylinder has a plurality of first water outlet holes extending through its surface, and the outer cylinder has a plurality of second water outlet holes extending through its surface, arranged at intervals on the outer cylinder surface. In response to the roller brush being in operation, cleaning fluid flows through the first and second water outlet holes to the cleaning element of the roller brush or the surface to be cleaned. The first or second water outlet holes are arranged in at least three rows, with each row evenly distributed along the circumference of the inner cylinder. This design at least solves the problem of complex structures for spraying cleaning fluid onto operating surfaces, offering advantages such as simple structure and convenient operation, thus improving the user experience.

[0025] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Attached Figure Description

[0026] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure. It is obvious that the drawings described below are merely some embodiments of this disclosure, and those skilled in the art can obtain other drawings based on these drawings without any inventive effort. In the drawings:

[0027] Figure 1 This is a schematic diagram of the structure of a roller brush according to an exemplary embodiment.

[0028] Figure 2 This is a cross-sectional view of a roller brush according to an exemplary embodiment.

[0029] Figure 3 This is a front view of an inner cylinder and an outer cylinder according to an exemplary embodiment.

[0030] Figure 4 This is another front view of the inner and outer cylinders according to an exemplary embodiment.

[0031] Figure 5 This is a partial cross-sectional view of a roller brush according to an exemplary embodiment.

[0032] Figure 6 This is a schematic diagram illustrating the structure of a cleaning brush head according to an exemplary embodiment.

[0033] Figure label:

[0034] Roller brush 100, inner cylinder 110, first water outlet 101, outer cylinder 120, second water outlet 102, cleaning component 130, four-way pipe 140, water distribution structure 150;

[0035] Cleaning brush head 200, mounting bracket 210. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of this disclosure clearer, the disclosure will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this disclosure, and not all of them. Based on the embodiments of this disclosure, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this disclosure.

[0037] The terminology used in the embodiments of this disclosure is for the purpose of describing particular embodiments only and is not intended to limit the disclosure. The singular forms “a,” “the,” and “the” as used in the embodiments of this disclosure and the appended claims are also intended to include the plural forms, unless the context clearly indicates otherwise; “multiple” generally includes at least two, and other quantifiers are similarly intended.

[0038] It should be understood that although the terms first, second, third, etc., may be used to describe embodiments of this disclosure, these descriptions should not be limited to these terms. These terms are only used to distinguish the described objects. For example, first may also be referred to as second without departing from the scope of embodiments of this disclosure, and similarly, second may also be referred to as first. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0039] It should be understood that the term "and / or" as used herein is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, and B alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship. The singular forms "a," "the," and "the" are also intended to include the plural forms unless the context clearly indicates otherwise.

[0040] In the description of this disclosure, it should be noted that, unless otherwise expressly specified and limited, the terms "connected" or "linked" should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral connection; it can refer to a mechanical connection or an electrical connection; it can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0041] It should also be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that an article or device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such an article or device. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the article or device that includes said element.

[0042] Most wet cleaning equipment in related technologies consists of a cleaning liquid storage tank and fluid distributor mounted on the machine body, with pipes and sprayers installed at corresponding positions on the floor brush. The cleaning liquid is then sprayed directly onto the roller brush or the surface to be cleaned via the sprayers. However, the structure used by current cleaning equipment to achieve the above functions makes the machine body and brush head structure relatively complex, which not only hinders production but also increases the difficulty of maintenance.

[0043] In view of this, the present disclosure provides a roller brush, comprising: an inner cylinder having a plurality of first water outlet holes on its surface; and an outer cylinder configured to rotate around the inner cylinder having a plurality of second water outlet holes on its surface; wherein the plurality of second water outlet holes are arranged at intervals along the axial direction of the outer cylinder, and the spaced-out second water outlet holes are arranged in at least three rows in the circumferential direction of the outer cylinder, and each row is evenly distributed along the circumferential direction of the outer cylinder.

[0044] The roller brush disclosed herein has an inner cylinder and an outer cylinder, and a plurality of second water outlet holes are provided through the surface of the outer cylinder, the plurality of second water outlet holes being arranged at intervals on the surface of the outer cylinder. In response to the roller brush being in working condition, cleaning fluid flows through the first and second water outlet holes to the cleaning element of the roller brush or the surface to be cleaned. This solves the problem of complex structures for spraying cleaning fluid onto operating surfaces, and has the advantages of simple structure and convenient operation, improving the user experience.

[0045] The optional embodiments of this disclosure are described in detail below with reference to the accompanying drawings.

[0046] This disclosure provides a roller brush 100, such as... Figure 1 As shown, the system includes an inner cylinder 110, an outer cylinder 120, and a cleaning component 130. The outer cylinder 120 is disposed outside the inner cylinder 110. Normally, the inner cylinder 110 is fixed, while the outer cylinder 120 is configured to rotate axially around the inner cylinder 110 under the drive of a power source. The cleaning component 130 is detachably disposed outside the outer cylinder 120 and is configured to rotate at high speed under the drive of the outer cylinder 120 to clean the surface to be cleaned.

[0047] In some embodiments, the inner cylinder 110 is provided with a plurality of first water outlet holes 101 on its surface, and the outer cylinder 120 is provided with a plurality of second water outlet holes 102 on its surface. The first water outlet holes 101 and the second water outlet holes 102 are configured to deliver cleaning fluid. The plurality of second water outlet holes 102 are arranged at intervals along the axial direction of the outer cylinder 120. The spaced-apart second water outlet holes 102 are arranged in at least three rows in the circumferential direction of the outer cylinder 120. The three rows of second water outlet holes 102 are evenly arranged along the axial direction of the outer cylinder 120. In the at least three rows of second water outlet holes 102, the second water outlet holes 102 in each row are approximately aligned in the circumferential direction, so that the cleaning fluid can flow evenly to the surface to be cleaned.

[0048] In some embodiments, the roller brush 100 is an internally water-discharging roller brush. For internally water-discharging roller brushes, the centrifugal force generated when the outer cylinder 120 rotates is needed to help the water inside the roller brush 100 be thrown out of the outer cylinder 120. If the number of rows of second water outlet holes 102 in the outer cylinder 120 is small, especially in the short period after the machine is started, the cleaning component 130 outside the roller brush 100 cannot be quickly wetted. Unlike traditional externally water-discharging roller brushes, water or cleaning liquid cannot be sprayed directly onto the roller brush 100 to quickly wet the cleaning component 130. This will result in the cleaning component 130 wiping the surface to be cleaned dry, which can easily scratch the wooden floor and lead to a poor user experience. Therefore, the second water outlet holes 102 can be provided in three or more rows on the surface of the outer cylinder 120.

[0049] In some embodiments, in the at least three rows of second water outlet holes 102, the second water outlet holes 102 in each row are staggered in the circumferential direction.

[0050] In some embodiments, the inner cylinder 110 surface is provided with at least a plurality of first water outlet holes 101, and the plurality of first water outlet holes 101 are arranged at intervals on the surface of the inner cylinder 110. It should be noted separately that this disclosure does not specifically limit the arrangement of the first water outlet holes 101 on the surface of the inner cylinder 110, and it can be as follows: Figure 2 The arrangement shown extends along the axial direction of the inner cylinder 110, or it can be arranged obliquely on the surface of the inner cylinder 110, or any other arrangement.

[0051] In some embodiments, to ensure uniform drainage of the cleaning fluid on the surface of the inner cylinder 110, at least one row of the first water outlet holes 101 is provided on the surface of the inner cylinder 110. This embodiment does not specifically limit the arrangement direction of the two rows of water outlet holes; they can be arranged along the axial direction of the roller brush 100 or inclined on the surface of the inner cylinder 110.

[0052] In some embodiments, the number of rows of the first water outlet 101 is the same as the number of rows of the second water outlet 102.

[0053] There is a gap between the inner cylinder 110 and the outer cylinder 120. The cleaning liquid can enter the gap through the first water outlet 101 and then flow out of the outer cylinder 120 through the second water outlet 102. The cleaning liquid flowing out of the outer cylinder 120 can flow to the surface of the cleaning component 130 and work together with the cleaning component 130 to clean the surface to be cleaned.

[0054] In some embodiments, the inner cylinder 110 has a plurality of first water outlet holes 101 on its surface. The plurality of first water outlet holes 101 are arranged at intervals along the axial direction of the inner cylinder 110. The spaced-out first water outlet holes 101 are arranged in at least three rows in the circumferential direction of the inner cylinder 110, and each row of first water outlet holes 101 is evenly distributed in the circumferential direction of the inner cylinder 110. Since the roller brush 100 is an internal water outlet roller brush, it needs to rely on the centrifugal force generated when the outer cylinder 120 rotates to help the water in the roller brush 100 to be thrown out of the outer cylinder 120. If the number of rows of first water outlet holes 101 in the inner cylinder 110 is small, especially in the short period of time when the machine is first started, the cleaning component 130 outside the roller brush 100 cannot be quickly wetted. It cannot spray water or cleaning liquid directly onto the roller brush 100 to quickly wet the cleaning component 130 like a traditional external water outlet roller brush. As a result, the cleaning component 130 will dry-rub the surface to be cleaned, which can easily scratch the wooden floor and result in a poor user experience. Therefore, the first water outlet 101 can be provided in three or more rows on the surface of the inner cylinder 110.

[0055] In some embodiments, the roller brush 100 further includes a cleaning element 130, which is sleeved on the outer cylinder 120 and configured to absorb the cleaning liquid discharged from the second water outlet 102 to clean the surface to be cleaned.

[0056] In response to the cleaning liquid flowing through the first outlet 101 and the second outlet 102, it ultimately flows to the cleaning component 130, whereby the cleaning component 130 and the cleaning liquid work together to clean the surface to be cleaned. This application does not specifically limit the shape or structure of the cleaning component 130; the cleaning component 130 can be a scraper, a cleaning sponge, a brush, or any other cleaning component 130 capable of cleaning the surface to be cleaned.

[0057] In some embodiments, such as Figure 2 , Figure 3 As shown, in the radial direction of the roller brush 100, a plurality of first water outlet holes 101 and a plurality of second water outlet holes 102 are arranged correspondingly in the radial direction, and the spacing between the second water outlet holes 102 is greater than the spacing between the first water outlet holes 101.

[0058] In response to the outer cylinder 120 rotating relative to the inner cylinder 110 until the first water outlet 101 and the second water outlet 102 are radially aligned, with the radial projection of the second water outlet 102 covering the first water outlet 101, the spacing between the second water outlets 102 is greater than the spacing between the first water outlets 101. This allows the cleaning fluid flowing through the first water outlet 101 to directly exit the outer cylinder 120 through the second water outlet 102. Furthermore, the cleaning fluid acts on the cleaning component 130 to clean the surface to be cleaned.

[0059] In some embodiments, such as Figure 5 As shown, the roller brush 100 also includes a water distribution structure 150, which is disposed inside the inner cylinder 110 and configured to allow the cleaning liquid to flow out evenly from the plurality of first water outlet holes 101. The water distribution structure 150 is disposed on the inner wall of the inner cylinder 110 of the roller brush 100 and configured to allow the cleaning liquid introduced by the four-way pipe 140 to flow out evenly from the first water outlet holes 101.

[0060] In some embodiments, the plurality of first water outlet holes 101 have the same diameter. For example... Figure 5 As shown, the water distribution structure 150 is a guide rib extending axially along the inner wall of the inner cylinder 110. The side of the guide rib away from the inner wall of the inner cylinder 110 is parallel to the axis of the inner cylinder 110, forming an independent axial liquid distribution chamber. After the cleaning liquid enters the inner cylinder 110 through the four-way pipe 140, it is divided into various axial liquid distribution chambers by the guide rib, avoiding local accumulation caused by disordered flow of the cleaning liquid in the inner cylinder. At the same time, the guide rib can guide the cleaning liquid to diffuse uniformly along the axial direction, so that the cleaning liquid pressure at the first water outlet 101 in each area of ​​the inner cylinder 110 tends to be consistent, and finally achieves uniform outflow of the cleaning liquid. Since the water distribution structure 150 is provided on the side wall of the inner cylinder 110, the cleaning liquid flowing through the water distribution structure 150 flows uniformly in the axial direction of the roller brush 100. The aperture of the multiple first water outlets 101 provided on the surface of the inner cylinder 110 is the same. At this time, the flow rate of the cleaning liquid flowing out of the first water outlet 101 is also approximately the same. The cleaning liquid can be evenly distributed to the cleaning component 130 through the first water outlet 101 and the second water outlet 102, and the cleaning component 130 and the cleaning liquid work together to clean the surface to be cleaned.

[0061] In some embodiments, the plurality of first water outlet holes 101 and the plurality of second water outlet holes 102 are radially arranged with different hole diameters. Specifically, in the axial direction of the roller brush 100, the hole diameters of the first water outlet holes in the same row are different, such as... Figure 3As shown, since the cleaning fluid flows from one end of the roller brush 100 to the inner cylinder 110, the fluid pressure at the end of the inner cylinder 110 near the cleaning fluid inlet is different from that at the end of the inner cylinder 110 away from the cleaning fluid inlet. In this case, if the apertures of the multiple first water outlets 101 are the same, the water column flowing out of the inner cylinder 110 may be uneven. Therefore, the apertures of the multiple first water outlets 101 and the multiple second water outlets 102 are arranged differently in the radial direction.

[0062] In some embodiments, the diameter of the first water outlet 101 upstream of the inner cylinder 110 surface is larger than the diameter of the first water outlet 101 downstream. When the cleaning fluid flows through the inner cylinder 110, due to the liquid pressure, the flow rate of the water flowing out through the first water outlet 101 is approximately the same. Therefore, the liquid flowing out of the inner cylinder 110 can be evenly transferred to the outer cylinder 120, and further, the cleaning fluid can be evenly applied to the cleaning component 130 or the surface to be cleaned.

[0063] This disclosure also includes another type of roller brush 100, comprising: an inner cylinder 110 having a plurality of first water outlet holes 101 on its surface; and an outer cylinder 120 configured to rotate around the inner cylinder 110, the outer cylinder 120 having a plurality of second water outlet holes 102 on its surface; wherein the plurality of second water outlet holes 102 are evenly arranged along the outer surface of the outer cylinder 120.

[0064] like Figure 4 As shown, a first water outlet 101 is provided through the surface of the inner cylinder 110. The first water outlets 101 are evenly arranged on the surface of the inner cylinder 110, and the first water outlets 101 in adjacent rows are evenly and alternately arranged. A second water outlet 102 is provided through the surface of the outer cylinder 120. The second water outlets 102 are evenly arranged on the surface of the outer cylinder 120, and the second water outlets 102 in adjacent rows are evenly and alternately arranged.

[0065] It should be noted that regardless of the arrangement of the first water outlet 101 or the second water outlet 102, the cleaning fluid can flow out from the first water outlet 101 and then through the second water outlet 102 to the cleaning component 130 or the surface to be cleaned. The first water outlet 101 is discretely arranged on the surface of the inner cylinder 110, and the first water outlet 101 can form a uniform mesh on the surface of the inner cylinder 110. The second water outlet 102 is discretely arranged on the surface of the outer cylinder 120, and the second water outlet 102 can form a uniform mesh on the surface of the outer cylinder 120.

[0066] This disclosure also includes a cleaning brush head, such as Figure 6As shown, the cleaning brush head includes the roller brush 100 and a mounting bracket, with the roller brush 100 detachably connected to the mounting bracket.

[0067] Specifically, the cleaning brush head also includes a mounting bracket with a drive end that is motive-connected to the outer cylinder 120. The mounting bracket is connected directly or indirectly to a drive assembly within the cleaning device, transmitting the driving force of the drive assembly to the drive end of the outer cylinder 120, thereby driving the outer cylinder 120 to rotate.

[0068] Optionally, the mounting bracket has a snap-fit ​​portion that is fixedly connected to the inner cylinder 110. The specific structure of the snap-fit ​​portion is not limited, as long as it can securely connect the inner cylinder 110 and the mounting bracket. The snap-fit ​​portion keeps the inner cylinder 110 fixed relative to the mounting bracket, thereby allowing the electrical connection structure to be safely transmitted to the roller brush 100 through the mounting bracket for heating the roller brush 100.

[0069] In some embodiments, the mounting bracket is disposed on one side of the roller brush 100 and configured to mount the roller brush 100 to a cleaning device. When the roller brush 100 is assembled with the cleaning device, the mounting bracket can guide the cleaning fluid of the cleaning device to the roller brush 100, wherein the cleaning fluid source is disposed in the cleaning device.

[0070] In some embodiments, such as Figure 5 As shown, the roller brush 100 also includes a four-way pipe 140, and the mounting bracket is connected to the four-way pipe 140. The four-way pipe includes a first through hole, a second through hole, a third through hole, and a fourth through hole. The first through hole is connected to the interior of the mounting bracket. The second through hole, the third through hole, and the fourth through hole of the four-way pipe 140 are respectively connected to the three first water outlet holes 101 of the inner cylinder 110. The cleaning fluid enters the four-way pipe 140 through the first through hole via the mounting bracket, and further flows through the second through hole, the third through hole, and the fourth through hole through the first water outlet hole 101 into the gap between the inner cylinder 110 and the outer cylinder 120. As the outer cylinder 120 rotates relative to the inner cylinder 110, the cleaning fluid flows from the gap between the inner cylinder 110 and the outer cylinder 120 through the second water outlet hole 102 to the cleaning component 130, finally allowing the cleaning component 130 and the cleaning fluid to work together to clean the surface to be cleaned.

[0071] This disclosure also provides a cleaning device, including the cleaning brush head described above. The cleaning device can be a floor scrubber, sweeper, or sweeper-mop combo, etc. The cleaning device also includes a water tank and a detergent tank, which provide room-temperature cleaning fluid to the roller brush 100. The room-temperature cleaning fluid is heated by the roller brush 100 to clean the work surface. Other structural details of the cleaning device are not described in detail.

[0072] The specific structure, working principle, and beneficial effects of the roller brush, cleaning brush head, and cleaning equipment provided in this disclosure can be found in any of the above embodiments of the roller brush, cleaning brush head, and cleaning equipment, and will not be repeated here.

[0073] Finally, it should be noted that the various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the systems or apparatus disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the descriptions are relatively simple, and relevant parts can be referred to the method section.

[0074] The above embodiments are only used to illustrate the technical solutions of this disclosure, and are not intended to limit it. Although this disclosure has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this disclosure.

Claims

1. A roller brush, characterized in that, include: The inner cylinder has a plurality of first water outlet holes on its surface; An outer cylinder is configured to rotate around the inner cylinder, and a plurality of second water outlet holes are provided on the surface of the outer cylinder; The second water outlet holes are arranged at intervals along the axial direction of the outer cylinder, and the spaced second water outlet holes are arranged in at least three rows in the circumferential direction of the outer cylinder, with each row evenly distributed along the circumferential direction of the outer cylinder.

2. The roller brush according to claim 1, characterized in that, In the at least three rows of second water outlet holes, the second water outlet holes in each row are roughly aligned in the circumferential direction.

3. The roller brush according to claim 1, characterized in that, In the at least three rows of second water outlet holes, the second water outlet holes in each row are staggered in the circumferential direction.

4. The roller brush according to claim 1, characterized in that, The inner cylinder is provided with at least one row of the first water outlet holes.

5. The roller brush according to claim 1, characterized in that, The number of rows of the first water outlet is the same as the number of rows of the second water outlet.

6. The roller brush according to claim 1, characterized in that, Along the axial direction of the brush body, the spacing between the first water outlet holes is the same as the spacing between the second water outlet holes.

7. The roller brush according to claim 1, characterized in that, The roller brush also includes: A uniform water distribution structure is installed inside the inner cylinder and configured to allow the cleaning liquid to flow out uniformly from multiple first water outlet holes.

8. The roller brush according to claim 7, characterized in that, The diameters of the multiple first water outlet holes may be the same or different.

9. The roller brush according to claim 1, characterized in that, Multiple first water outlet holes and multiple second water outlet holes are arranged radially in a corresponding manner.

10. The roller brush according to claim 1, characterized in that, The diameter of the first water outlet hole upstream of the inner cylinder surface is larger than the diameter of the first water outlet hole downstream.

11. A roller brush, characterized in that, include: The inner cylinder has a plurality of first water outlet holes on its surface. The plurality of first water outlet holes are arranged at intervals along the axial direction of the inner cylinder. The spaced-out first water outlet holes are arranged in at least three rows in the circumferential direction of the inner cylinder, and each row is evenly distributed along the circumferential direction of the inner cylinder. An outer cylinder is configured to rotate around the inner cylinder, and a plurality of second water outlet holes are provided on the surface of the outer cylinder; The plurality of second water outlet holes are evenly arranged along the outer surface of the outer cylinder.

12. The roller brush according to claim 11, characterized in that, The spacing between the second water outlet holes is smaller than the spacing between the first water outlet holes.

13. The roller brush according to claim 11, characterized in that, The roller brush also includes: A uniform water distribution structure is installed inside the inner cylinder and configured to allow the cleaning liquid to flow out uniformly from multiple first water outlet holes.

14. The roller brush according to claim 13, characterized in that, The diameters of the multiple first water outlet holes may be the same or different.

15. The roller brush according to claim 11, characterized in that, Multiple first water outlet holes and multiple second water outlet holes are arranged radially in a corresponding manner.

16. The roller brush according to claim 11, characterized in that, The diameter of the first water outlet hole upstream of the inner cylinder surface is larger than the diameter of the first water outlet hole downstream.

17. A cleaning brush head, characterized in that, include: The roller brush according to any one of claims 1-16.

18. A cleaning device, characterized in that, include: The cleaning brush head as described in claim 17.

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