Cleaning module and cleaning device
By incorporating limiting components and guide wheels into the cleaning module, the problem of dirt or wetness caused by contact between the cleaning module and the wall surface is solved, achieving efficient wall cleaning without damaging the wall surface.
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- BEIJING ROCKROBO TECH CO LTD
- Filing Date
- 2025-09-26
- Publication Date
- 2026-07-23
AI Technical Summary
The cleaning modules of existing cleaning robots are prone to coming into contact with the wall surface when cleaning along the wall, which can cause the wall to get dirty or wet.
Design a cleaning module by setting a limiting component, such that the maximum distance between the limiting component and the centroid of the cleaning module body is greater than the maximum distance between the edge and the centroid. The limiting component is used to make priority contact with the wall, avoiding direct contact between the cleaning module body and the wall, and rolling friction is formed between the guide wheel and the wall surface.
While ensuring cleaning effectiveness, the cleaning module body is kept away from contact with the wall to reduce the risk of soiling or wetting the wall and improve user comfort.
Smart Images

Figure CN2025124574_23072026_PF_FP_ABST
Abstract
Description
Cleaning modules and cleaning equipment
[0001] Cross-references to related applications
[0002] This application is based on and claims priority to Chinese Patent Application No. 202520107438.3, filed on January 16, 2025, the entire contents of which are incorporated herein by reference. Technical Field
[0003] This disclosure relates to the field of cleaning equipment technology, and more particularly to a cleaning module and a cleaning device. Background Technology
[0004] With the advancement of technology, the cleaning range of cleaning robots along walls is gradually increasing. The distance between the robot and the wall is getting smaller and smaller when cleaning along the wall. Cleaning robots are usually equipped with cleaning modules such as side brushes or side mops for auxiliary cleaning. These cleaning modules can extend or retract relative to the cleaning equipment. However, when cleaning along the wall, these cleaning modules are prone to contact with the wall, which can cause the wall to get dirty or wet. Summary of the Invention
[0005] This disclosure aims to at least address one of the technical problems existing in the prior art. To this end, this disclosure proposes a cleaning module and a cleaning device, wherein the cleaning module body can avoid direct contact with the wall, thereby preventing the cleaning module body from soiling or wetting the wall surface.
[0006] A cleaning module according to an embodiment of the present disclosure includes: a cleaning module body adapted to be connected to a cleaning device body and for extending out of the cleaning device body; and a limiting member installed on the cleaning module body, wherein the maximum distance between the limiting member and the centroid of the cleaning module body is greater than the maximum distance between the edge of the cleaning module and the centroid of the cleaning module body.
[0007] According to the cleaning module of this disclosure, by setting the maximum distance between the limiting member and the centroid of the cleaning module body to be greater than the maximum distance between the edge of the cleaning module and the centroid of the cleaning module body, the limiting member will prioritize the cleaning module body to contact the wall. This ensures that the distance between the cleaning module and the wall surface is small when cleaning along the wall, while preventing the cleaning module body from directly contacting the wall, thereby preventing the cleaning module body from getting dirty or wet on the wall surface.
[0008] According to some embodiments of the present disclosure, the limiting member of the cleaning module includes a guide wheel, which is rotatably mounted on the cleaning module body, and the maximum distance between the guide wheel and the centroid of the cleaning module body is greater than the maximum distance between the edge of the cleaning module and the centroid of the cleaning module body.
[0009] According to some embodiments of the present disclosure, the cleaning module body includes a cleaning disc, and at least a portion of the guide wheel is located radially outside the cleaning disc.
[0010] According to some embodiments of the present disclosure, the cleaning module body has a cleaning surface, and the extension direction of the rotation axis of the guide wheel is perpendicular to the plane where the cleaning surface is located.
[0011] According to some embodiments of the present disclosure, the limiting member further includes a connector, the connector including a first connecting portion and a second connecting portion, the first connecting portion being connected to the cleaning module body, at least a portion of the second connecting portion being spaced apart from the cleaning module body, and the guide wheel being rotatably mounted on the second connecting portion.
[0012] According to some embodiments of the present disclosure, the cleaning module body includes a cleaning disc, and the second connecting portion extends radially along the cleaning disc.
[0013] According to some embodiments of the cleaning module disclosed herein, the limiting member further includes a connecting shaft, wherein the guide wheel is mounted to the second connecting portion via the connecting shaft.
[0014] According to some embodiments of the cleaning module disclosed herein, the connector is provided with a mounting groove, and at least a portion of the guide wheel is rotatably mounted in the mounting groove.
[0015] According to some embodiments of the cleaning module disclosed herein, the second connecting portion is provided with two baffles, which are spaced apart to define the mounting groove.
[0016] According to some embodiments of the cleaning module disclosed herein, the connecting shaft is installed in the mounting groove, and the guide wheel is rotatably connected to the connecting shaft.
[0017] According to some embodiments of the cleaning module disclosed herein, at least a portion of the outer peripheral wall of the end of the second connecting portion away from the first connecting portion is formed as an arc surface.
[0018] According to some embodiments of the present disclosure, the connector and the cleaning module body are integrally formed.
[0019] According to some embodiments of the present disclosure, the cleaning module body has a cleaning surface, and the limiting member and the cleaning surface are located on opposite sides of the cleaning module body.
[0020] This disclosure also proposes a cleaning device.
[0021] A cleaning device according to an embodiment of the present disclosure includes: a cleaning device body and a cleaning module as described in any of the above embodiments, wherein the cleaning module is connected to the cleaning device body.
[0022] The cleaning equipment described above has the same advantages over the prior art as the cleaning module described above, and will not be repeated here.
[0023] Additional aspects and advantages of this disclosure will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this disclosure. Attached Figure Description
[0024] The above and / or additional aspects and advantages of this disclosure will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:
[0025] Figure 1 is a schematic diagram of a cleaning device according to some embodiments of the present disclosure;
[0026] Figure 2 is a schematic diagram of a cleaning module according to some embodiments of this disclosure;
[0027] Figure 3 is a schematic diagram of a cleaning module according to some embodiments of this disclosure;
[0028] Figure 4 is a schematic diagram of a cleaning module according to some embodiments of this disclosure;
[0029] Figure 5 is an exploded view of a cleaning module according to some embodiments of this disclosure;
[0030] Figure 6 is an enlarged view of point A in Figure 2;
[0031] Figure 7 is an enlarged view of point B in Figure 3.
[0032] Reference numerals: Cleaning equipment 100; Cleaning module 10; Cleaning equipment body 20; Cleaning module body 1; Cleaning disc 11; Cleaning surface 12; Limiting component 2; Guide wheel 21; Connector 22; First connecting part 221; Second connecting part 222; Arc surface 2221; Mounting groove 223; Baffle 224; Connecting shaft 23. Detailed Implementation
[0033] To better understand the technical solutions provided in the embodiments of this specification, the technical solutions of the embodiments of this specification will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the embodiments of this specification and the specific features in the embodiments are detailed descriptions of the technical solutions of the embodiments of this specification, rather than limitations on the technical solutions of this specification. In the absence of conflict, the embodiments of this specification and the technical features in the embodiments can be combined with each other.
[0034] In this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, without necessarily requiring or implying any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element. The term "two or more" includes two or more cases.
[0035] This disclosure proposes a cleaning device 100, which may include a cleaning robot for cleaning the floor, such as a sweeping robot, a mopping robot, or a sweeping and mopping robot, etc., without limitation.
[0036] Referring to Figure 1, the cleaning device 100 includes a cleaning device body 20 and at least one cleaning module 10. The cleaning module 10 is connected to the cleaning device body 20 and is used to extend out of the cleaning device body 20 to approach the edge of the wall, thereby reducing the distance between the cleaning device 100 and the wall surface, thereby increasing the cleaning range of the cleaning device 100 along the wall.
[0037] For example, the cleaning device 100 is a mopping robot, and the cleaning module 10 may include, but is not limited to, a side brush, a side mop, or a telescopic mop. The cleaning module 10 can be movably installed on the cleaning device body 20 so that when the cleaning device body 20 moves to the wall, the cleaning module 10 can extend from the cleaning device 100 to approach the edge of the wall. In this way, the cleaning range of the cleaning module 10 is not limited by the size of the cleaning device body 20, thereby reducing the distance between the cleaning device 100 and the wall and increasing the cleaning range of the cleaning device 100 along the wall.
[0038] Please refer to Figure 2. The cleaning module 10 includes: the cleaning module body 1 and the limiting member 2.
[0039] The cleaning module body 1 is adapted to be connected to the cleaning equipment body 20 and is used to extend out of the cleaning equipment body 20. The limiting member 2 is installed on the cleaning module body 1. It can be understood that the limiting member 2 can be fixedly installed on the cleaning module body 1 or can be movably installed on the cleaning module body 1. No limitation is made here.
[0040] Please refer to Figures 3 and 4. The maximum distance between the limiting member 2 and the centroid of the cleaning module body 1 is greater than the maximum distance between the edge of the cleaning module 10 and the centroid of the cleaning module body 1.
[0041] It is understood that the cleaning module body 1 is a three-dimensional structure, that is, the centroid of the cleaning module body 1 refers to the volume center of the cleaning module body 1. The cleaning module body 1 can be circular, elliptical, square or other shapes that can achieve wall cleaning, and there is no limitation here.
[0042] For example, referring to Figures 3 and 4, the centroid of the cleaning module body 1 can be point M, the maximum distance between the limiting member 2 and the centroid of the cleaning module body 1 is L1, and the maximum distance between the edge of the cleaning module 10 and the centroid of the cleaning module body 1 is L2, where L1 > L2.
[0043] In this way, when the cleaning module 10 extends out of the cleaning device body 20 to clean along the wall, if the cleaning module 10 comes into contact with the wall, the limiting member 2 will prioritize the cleaning module body 1 coming into contact with the wall. This ensures that the cleaning module 10 is at a small distance from the wall while cleaning along the wall, and at the same time, it prevents the cleaning module body 1 from directly contacting the wall, thereby preventing the cleaning module body 1 from getting dirty or wet on the wall and improving user comfort.
[0044] According to the embodiments of the present disclosure, the cleaning module 10 is configured such that the maximum distance between the limiting member 2 and the centroid of the cleaning module body 1 is greater than the maximum distance between the edge of the cleaning module 10 and the centroid of the cleaning module body 1. This allows the limiting member 2 to prioritize contact between the cleaning module body 1 and the wall. In this way, while ensuring that the cleaning module 10 is at a small distance from the wall surface when cleaning along the wall, the cleaning module 10 can avoid direct contact between the cleaning module body 1 and the wall surface, thereby preventing the cleaning module body 1 from getting dirty or wet.
[0045] In some embodiments, referring to Figures 3 and 4, the limiting member 2 includes a guide wheel 21, which is rotatably mounted on the cleaning module body 1, and the maximum distance L1 between the guide wheel 21 and the centroid of the cleaning module body 1 is greater than the maximum distance L2 between the edge of the cleaning module 10 and the centroid of the cleaning module body 1.
[0046] In this way, when the limiting member 2 comes into contact with the wall, the guide wheel 21 will rotate along the wall, so that the guide wheel 21 and the wall will form rolling friction, thereby reducing the friction between the limiting member 2 and the wall, and reducing the risk of the limiting member 2 scratching the wall.
[0047] Understandably, in some implementations, the cleaning module 10 is rotatably mounted on the cleaning device body 20. However, in this embodiment, by setting the guide wheel 21 to be rotatably mounted on the cleaning module body 1, when the cleaning module 10 rotates relative to the cleaning device body 20 and contacts the wall, the guide wheel 21 can rotate along the wall, so that rolling friction is formed between the guide wheel 21 and the wall. In this way, the risk of damage to the wall when the cleaning module 10 rotates can be reduced.
[0048] In some embodiments, referring to Figures 2 and 3, the cleaning module body 1 includes a cleaning disk 11, with at least a portion of the guide wheel 21 located radially outward of the cleaning disk 11.
[0049] It is understandable that the cleaning disc 11 has a circular structure. In some implementations, cleaning components such as cleaning mops can be installed on the cleaning disc 11. When the cleaning module 10 extends out of the cleaning device body 20, the cleaning disc 11 can rotate relative to the cleaning device body 20. Since the cleaning disc 11 has a circular structure, it is easier to achieve cleaning along the wall.
[0050] At least a portion of the guide wheel 21 is located radially outside the cleaning disc 11, so that the guide wheel 21 will preferentially clean the disc 11 to contact the wall. Since the guide wheel 21 is rotatably mounted on the cleaning module body 1, rolling friction is formed between the guide wheel 21 and the wall, thereby reducing the friction between the limiting member 2 and the wall, and reducing the risk of the limiting member 2 scratching the wall.
[0051] In some embodiments, please refer to FIG4, the cleaning module body 1 has a cleaning surface 12, and the extension direction of the rotation axis of the guide wheel 21 is perpendicular to the plane where the cleaning surface 12 is located.
[0052] It is understood that the cleaning surface 12 refers to the side of the cleaning module body 1 that is used to contact the ground to clean the ground. The extension direction of the rotation axis of the guide wheel 21 is perpendicular to the plane where the cleaning surface 12 is located, so that the rotation plane of the guide wheel 21 is parallel to the cleaning surface 12, so that after the cleaning module 10 extends out of the cleaning device body 20, the rotation direction of the guide wheel 21 will not interfere with the movement of the cleaning module 10.
[0053] In some embodiments, please refer to Figure 4, the limiting member 2 further includes a connecting member 22.
[0054] The connector 22 includes a first connecting portion 221 and a second connecting portion 222. The first connecting portion 221 is connected to the cleaning module body 1, and at least a portion of the second connecting portion 222 is spaced apart from the cleaning module body 1. The guide wheel 21 is rotatably mounted on the second connecting portion 222. Thus, by providing the connector 22, the assembly difficulty of the guide wheel 21 is reduced.
[0055] Referring to Figure 4, the first connecting portion 221 is connected to the cleaning module body 1, and at least a portion of the second connecting portion 222 is spaced apart from the cleaning module body 1. For example, the second connecting portion 222 is bent and connected to the first connecting portion 221, and the second connecting portion 222 is spaced apart from the cleaning module body 1. This facilitates reducing the assembly difficulty of the guide wheel 21, and reduces the risk of interference between the guide wheel 21 and the cleaning module body 1 when the guide wheel 21 rotates.
[0056] In some embodiments, referring to Figures 2 and 3, the cleaning module body 1 includes a cleaning disk 11, and a second connecting portion 222 extends radially along the cleaning disk 11.
[0057] It is understandable that the cleaning disc 11 has a circular structure. In some implementations, cleaning components such as cleaning mops can be installed on the cleaning disc 11. When the cleaning module 10 extends out of the cleaning device body 20, the cleaning disc 11 can rotate relative to the cleaning device body 20. Since the cleaning disc 11 has a circular structure, it is easier to achieve cleaning along the wall.
[0058] The second connecting portion 222 extends radially along the cleaning disk 11 to reduce the difficulty of setting the second connecting portion 222.
[0059] In some embodiments, referring to Figure 5, the limiting member 2 further includes a connecting shaft 23, through which the guide wheel 21 is mounted to the second connecting portion 222. This allows the guide wheel 21 to be rotatably connected to the second connecting portion 222 via the connecting shaft 23, thereby reducing the difficulty of installing the guide wheel 21.
[0060] In some embodiments, referring to FIG5, the connector 22 is provided with a mounting groove 223, as shown in FIG6, at least a portion of the guide wheel 21 is rotatably mounted in the mounting groove 223. Thus, by providing the mounting groove 223, the sidewall of the mounting groove 223 can play a certain limiting role on the guide wheel 21, thereby enhancing the structural stability of the guide wheel 21.
[0061] For example, the connecting shaft 23 is connected between two oppositely arranged side walls of the mounting groove 223, so that the connecting shaft 23 can make full use of the space in the mounting groove 223 for installation. The guide wheel 21 is sleeved on the connecting shaft 23, so that a part of the guide wheel 21 is located in the mounting groove 223. At the same time, the side wall of the mounting groove 223 can play a certain limiting role on the guide wheel 21 in the axial direction of the connecting shaft 23, thereby enhancing the structural stability of the guide wheel 21.
[0062] In some embodiments, referring to Figure 5, the second connecting portion 222 is provided with two baffles 224, which are spaced apart to define the mounting groove 223. Thus, by providing two baffles 224, the mounting groove 223 can be defined using the two baffles 224, thereby reducing the design complexity of the mounting groove 223.
[0063] In some embodiments, please refer to Figure 6, the connecting shaft 23 is installed in the mounting groove 223, and the guide wheel 21 is rotatably connected to the connecting shaft 23.
[0064] For example, the connecting shaft 23 is connected between two oppositely arranged side walls of the mounting groove 223, so that the connecting shaft 23 can make full use of the space in the mounting groove 223 for installation. The guide wheel 21 is sleeved on the connecting shaft 23, so that a part of the guide wheel 21 is located in the mounting groove 223. At the same time, the side wall of the mounting groove 223 can play a certain limiting role on the guide wheel 21 in the axial direction of the connecting shaft 23, thereby enhancing the structural stability of the guide wheel 21.
[0065] In some embodiments, referring to Figures 6 and 7, at least a portion of the outer peripheral wall of the end of the second connecting portion 222 away from the first connecting portion 221 is formed as an arc surface 2221.
[0066] This makes the end of the second connecting part 222 away from the first connecting part 221 relatively smooth. In this way, even if the end of the second connecting part 222 away from the first connecting part 221 protrudes from the edge of the cleaning module body 1, damage to the wall can be reduced even if the guide wheel 21 is damaged and the end of the second connecting part 222 away from the first connecting part 221 comes into contact with the wall.
[0067] In some embodiments, referring to Figures 2 and 3, the connector 22 and the cleaning module body 1 are integrally formed, which facilitates the improvement of the connection strength between the connector 22 and the cleaning module body 1, and the connector 22 and the cleaning module body 1 can be integrally formed to reduce production costs.
[0068] In other embodiments, the connector 22 is detachably connected to the cleaning module body 1, so that the user can flexibly select and install the connector 22 according to actual usage needs. The connector 22 and the cleaning module body 1 can be connected by means of snap-fit, plug-in, magnetic engagement or bolt connection, etc., which are not limited here.
[0069] In some embodiments, please refer to FIG4, the cleaning module body 1 has a cleaning surface 12, and the limiting member 2 and the cleaning surface 12 are located on opposite sides of the cleaning module body 1.
[0070] It is understandable that the cleaning surface 12 refers to the side of the cleaning module body 1 that is used to contact the ground to clean the ground. The limiting member 2 and the cleaning surface 12 are located on opposite sides of the cleaning module body 1. This can reduce the space occupied by the limiting member 2 on one side of the cleaning surface 12, thereby increasing the grounding area of the cleaning surface 12 and avoiding interference between the limiting member 2 and the ground.
[0071] It should be noted that the descriptions of each embodiment in the above embodiments have different focuses. For parts that are not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.
[0072] 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.
[0073] Although preferred embodiments have been described in this specification, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of this specification.
[0074] Obviously, those skilled in the art can make various modifications and variations to this specification without departing from its spirit and scope. Therefore, if such modifications and variations fall within the scope of the claims and their equivalents, this specification is also intended to include such modifications and variations.
Claims
1. A cleaning module, comprising: A cleaning module body, which is connected to and extends out of the cleaning equipment body; A limiting member is installed on the cleaning module body, and the maximum distance between the limiting member and the centroid of the cleaning module body is greater than the maximum distance between the edge of the cleaning module and the centroid of the cleaning module body.
2. The cleaning module according to claim 1, wherein, The limiting component includes a guide wheel, which is rotatably mounted on the cleaning module body, and the maximum distance between the guide wheel and the centroid of the cleaning module body is greater than the maximum distance between the edge of the cleaning module and the centroid of the cleaning module body.
3. The cleaning module according to claim 2, wherein, The cleaning module body includes a cleaning disc, and at least a portion of the guide wheel is located radially outside the cleaning disc.
4. The cleaning module according to claim 3, wherein, The cleaning module body has a cleaning surface, and the extension direction of the rotation axis of the guide wheel is perpendicular to the plane where the cleaning surface is located.
5. The cleaning module according to claim 2, wherein, The limiting component further includes a connector, which includes a first connecting portion and a second connecting portion. The first connecting portion is connected to the cleaning module body, and at least a portion of the second connecting portion is spaced apart from the cleaning module body. The guide wheel is rotatably mounted on the second connecting portion.
6. The cleaning module according to claim 5, wherein, The cleaning module body includes a cleaning disc, and the second connecting portion extends radially along the cleaning disc.
7. The cleaning module according to claim 6, wherein, The limiting component further includes a connecting shaft, through which the guide wheel is mounted to the second connecting part.
8. The cleaning module according to claim 5, wherein, The connector is provided with a mounting groove, and at least a portion of the guide wheel is rotatably mounted in the mounting groove.
9. The cleaning module according to claim 8, wherein, The second connecting part is provided with two baffles, which are spaced apart to define the mounting groove.
10. The cleaning module according to claim 9, wherein, The connecting shaft is installed in the mounting groove, and the guide wheel is rotatably connected to the connecting shaft.
11. The cleaning module according to claim 5, wherein, At least a portion of the outer peripheral wall of the end of the second connecting portion away from the first connecting portion is formed as an arc surface.
12. The cleaning module according to claim 5, wherein, The connector and the cleaning module body are integrally molded.
13. The cleaning module according to any one of claims 1-12, wherein, The cleaning module body has a cleaning surface, and the limiting member and the cleaning surface are located on opposite sides of the cleaning module body.
14. A cleaning device, comprising: The cleaning device body and the cleaning module according to any one of claims 1-13, wherein the cleaning module is connected to the cleaning device body.