Cleaning head and cleaning device

Abstract

This utility model discloses a cleaning head and a cleaning device, relating to the field of cleaning equipment technology. The cleaning head includes a housing, a first cleaning component, and a second cleaning component. The housing has a cavity and an inlet and an outlet communicating with the cavity. The first cleaning component is rotatably mounted in the cavity. The second cleaning component is located behind the first cleaning component in the forward direction of the cleaning head. The first and second cleaning components are at least partially in contact with each other and move relative to each other at the contact point. During its rotational stroke, the first cleaning component is cleaned of hair by the second cleaning component. The relative movement between the two cleaning components in the contact area effectively removes hair entangled on the surface of the first cleaning component. Because the second cleaning component is located behind the first cleaning component, hair that falls off during the cleaning process will not fall back onto the uncleaned floor, avoiding secondary pollution caused by the cleaning action of the cleaning components.

Description

[0001] Priority information

[0002] This application claims priority to Chinese invention patent application No. 202510703216.2, filed on May 28, 2025, entitled "Cleaning Head and Cleaning Equipment"; Chinese utility model patent application No. 202521077219.1, entitled "Cleaning Head and Cleaning Equipment"; and Chinese utility model patent application No. 202521077208.3, entitled "Cleaning Head and Cleaning Equipment," the entire contents of which are incorporated herein by reference. Technical Field

[0003] This utility model relates to the field of cleaning equipment technology, and in particular to a cleaning head and a cleaning device. Background Technology

[0004] As residents' living standards continue to improve, more and more families are using cleaning equipment, such as robotic vacuum cleaners or multi-functional robots that combine sweeping and mopping, to automate daily environmental cleaning. These devices typically have a cleaning component at the suction port to enhance their ability to remove dirt from the floor. However, in actual operation, because the cleaning component is in direct contact with the floor, it is easily entangled in long, flexible materials such as hair. When a large amount of hair becomes entangled in the cleaning component, it not only weakens the device's suction performance but may also obstruct the component's rotation, and in severe cases, even cause the motor to stall, affecting the device's normal operation and potentially shortening its lifespan. Currently, users mainly rely on manually cleaning the entangled material from the cleaning component periodically. This method is cumbersome, time-consuming, and laborious, causing inconvenience for users' daily use. Utility Model Content

[0005] The main purpose of this invention is to provide a cleaning head and cleaning device that aims to solve the problem that existing cleaning components are prone to tangling with hair and that hair is not easy to remove.

[0006] To achieve the above objectives, the cleaning head proposed in this utility model includes:

[0007] The housing has a cavity and an inlet and an outlet communicating with the cavity;

[0008] The first cleaning component is rotatably mounted in the cavity;

[0009] The second cleaning component is located behind the first cleaning component in the forward direction of the cleaning head. The first cleaning component and the second cleaning component are at least partially in contact with each other, and at the position where the first cleaning component and the second cleaning component are in contact with each other, the first cleaning component and the second cleaning component are arranged in relative motion. During its rotation stroke, the first cleaning component is cleaned of dirt by the second cleaning component.

[0010] Optionally, the second cleaning element is rotatably mounted on the cavity about its axis, and the tangential movement directions are opposite where the first cleaning element and the second cleaning element come into contact with each other.

[0011] Optionally, the second cleaning element is rotatably mounted on the cavity about its axis, and the second cleaning element has a cutting structure for cutting hair wrapped around the second cleaning element.

[0012] Optionally, the cutting structure is located inside the outer circumference of the second cleaning component and does not protrude outward from the outer contour of the second cleaning component.

[0013] Optionally, the cutting structure includes two interacting cutting portions, each extending along the axial direction of the second cleaning member, the two cutting portions being relatively movable in the axial and / or radial directions of the second cleaning member to cut hair wrapped around the second cleaning member.

[0014] Optionally, a first transmission mechanism is provided between the second cleaning component and the two cutting sections. The first transmission mechanism is used to convert the rotational stroke of the second cleaning component into the shearing stroke of the two cutting sections relative to each other.

[0015] Optionally, the second cleaning component includes a base and bristles mounted around the base, and a cutting portion is fixedly mounted on the base and at least partially protrudes outward from the surface of the base.

[0016] The first transmission mechanism includes a slider that is movably disposed relative to the base along the axial direction and / or radial direction of the second cleaning member, and another cutting portion is fixedly mounted to the slider and is disposed at least partially protruding outward from the surface of the base.

[0017] Optionally, one of the slider and the second cleaning member is provided with a guide groove, and the other is provided with a guide portion that cooperates with the guide groove. The rotation of the second cleaning member causes the guide portion to cooperate with the guide groove to drive the slider to move relative to the base. The movement of the slider causes the two cutting portions to generate a relative shearing stroke.

[0018] Optionally, the extension direction of the guide groove is inclined to intersect the axial direction of the second cleaning member, and the guide portion extends radially along the second cleaning member and passes through the guide groove.

[0019] Optionally, the first transmission mechanism further includes:

[0020] A mounting shaft extends along the axial direction of the second cleaning component, one end of which is fixedly connected to the housing, and a guide portion extends outward from the side of the mounting shaft; and,

[0021] A bearing is fitted around the other end of the mounting shaft;

[0022] The base is connected to the periphery of the bearing so that when the base is rotatable relative to the mounting shaft, the guide portion and the guide groove drive each other to drive the sliding member to move relative to the base.

[0023] Optionally, each of the cutting portions includes a blade that extends continuously along the axial direction of the second cleaning member and does not protrude from the axial end face of the second cleaning member, or each of the cutting portions includes a plurality of blades spaced apart in the axial direction of the second cleaning member.

[0024] Optionally, the second cleaning component includes a base and bristles mounted on the periphery of the base. The cutting structure is mounted on the base and protrudes outward from the base radially along the second cleaning component. The maximum radial distance between the cutting structure and the central axis of the base is d1, and the maximum radial distance between the bristles and the central axis of the base is d2, where d2 > d1.

[0025] Optionally, 1mm ≤ d2 - d1 ≤ 3mm.

[0026] Optionally, 1.5mm≤d2-d1≤2mm.

[0027] Optionally, the outer diameter of the cross-section of the second cleaning component is set to be smaller than the outer diameter of the cross-section of the first cleaning component.

[0028] Optionally, the hardness of the material on the surface of the second cleaning component is set to be greater than the hardness of the material on the surface of the first cleaning component.

[0029] Optionally, the second cleaning component may include at least a portion of a stiff-bristled brush, a soft rubber component, or soft bristles, and the first cleaning component may be a soft-bristled brush with soft bristles.

[0030] Optionally, the cleaning head further includes a first drive motor for driving the second cleaning component to rotate and a second drive motor for driving the first cleaning component to rotate. The first drive motor and the second drive motor are both located behind the first cleaning component and are arranged sequentially along the axial direction of the second cleaning component.

[0031] Optionally, the angular velocity of the second cleaning component is set to be less than the angular velocity of the first cleaning component.

[0032] Optionally, the inlet and the outlet are arranged at an upward interval on the front and back of the housing, the first cleaning component is arranged corresponding to the inlet, the second cleaning component is arranged close to the outlet, the second cleaning component is located behind the first cleaning component and above the axis of the outlet.

[0033] This utility model also provides a cleaning head, the cleaning head comprising:

[0034] The housing has a cavity and an inlet and an outlet communicating with the cavity;

[0035] A first cleaning component, rotatably mounted to the housing about a first direction; and,

[0036] The second cleaning component has a cross-sectional diameter smaller than that of the first cleaning component. The second cleaning component moves in the same direction as the first cleaning component. In the forward direction of the cleaning head, the second cleaning component is located above and behind the first cleaning component and is at least partially in contact with the first cleaning component. It is used to clean the dirt on the first cleaning component during the rotation stroke of the second cleaning component.

[0037] A drive assembly, disposed in the housing, is used to drive the first cleaning component and / or the second cleaning component to rotate.

[0038] Optionally, the second cleaning component is provided with a cutting structure for cutting hair tangled on the second cleaning component.

[0039] Optionally, the cutting structure includes two mutually movable cutting parts, and the cleaning head includes a first transmission mechanism for converting the rotational stroke of the second cleaning component into a shearing stroke of the two cutting parts moving relative to each other.

[0040] Optionally, the second cleaning component includes a base and bristles mounted around the base, and the cutting portion is fixedly mounted on the base;

[0041] The first transmission mechanism includes a slider, which is movably disposed relative to the base along the axial direction and / or radial direction of the second cleaning member, and the other cutting part is fixedly mounted on the slider.

[0042] Optionally, one of the slider and the second cleaning member is provided with a guide groove, and the other is provided with a guide portion that cooperates with the guide groove. The rotation of the second cleaning member causes the guide portion to cooperate with the guide groove to drive the slider to move relative to the base. The movement of the slider causes the two cutting portions to generate a relative shearing stroke.

[0043] Optionally, the extension direction of the guide groove is inclined to intersect the axial direction of the second cleaning member, and the guide portion extends radially along the second cleaning member and passes through the guide groove.

[0044] Optionally, the second cleaning component includes a base and bristles mounted on the periphery of the base. The cutting structure is mounted on the base and protrudes outward from the base radially along the second cleaning component. The maximum radial distance between the cutting structure and the central axis of the base is d1, and the maximum radial distance between the bristles and the central axis of the base is d2, where d2 > d1.

[0045] Optionally, 1mm ≤ d2 - d1 ≤ 3mm.

[0046] Optionally, the drive assembly includes a first drive motor for driving the second cleaning component to rotate and a second drive motor for driving the first cleaning component to rotate. The first drive motor is located above or behind the second cleaning component, and the second drive motor is located inside or behind the first cleaning component.

[0047] Optionally, the angular velocity of the second cleaning component is set to be less than the angular velocity of the first cleaning component.

[0048] This utility model also provides a cleaning head, characterized in that it includes:

[0049] The housing has a cavity with an opening facing the object being cleaned; and,

[0050] The first cleaning component is configured as the main cleaning brush, used to clean the surface to be cleaned, and is a surface cleaning component with a first hardness.

[0051] The second cleaning component is configured as an auxiliary cleaning brush for contacting the first cleaning component to clean it. The first cleaning component and the second cleaning component are configured to have at least some differences in material, hardness, or density.

[0052] Optionally, the second cleaning component may include at least a hard-bristled brush, a soft rubber component, or soft bristles, and the surface cleaning component of the first cleaning component may be a soft-bristled brush with soft bristles.

[0053] Optionally, the first cleaning component and the second cleaning component have a contact position, and the tangential movement directions of the contact position are opposite.

[0054] Optionally, the second cleaning component is provided with a cutting structure for cutting hair tangled on the second cleaning component.

[0055] This utility model also provides a cleaning head, the cleaning head comprising:

[0056] case;

[0057] A first cleaning component is rotatably disposed within the housing; and,

[0058] The second cleaning component is in contact with the first cleaning component and is used to clean or collect dirt from the first cleaning component.

[0059] The relative rotational speed of the first cleaning component and the second cleaning component at the contact point is set as the sum of the absolute values ​​of the linear velocities of the first cleaning component and the second cleaning component.

[0060] Optionally, the second cleaning component is rotatably disposed within the housing;

[0061] The first cleaning component and the second cleaning component have opposite tangential directions.

[0062] Optionally, the angular velocity of the second cleaning component is set to be less than the angular velocity of the first cleaning component.

[0063] Optionally, the cleaning head further includes a first drive motor for driving the second cleaning component to rotate and a second drive motor for driving the first cleaning component to rotate. The first drive motor and the second drive motor are both located behind the first cleaning component and are arranged sequentially along the axial direction of the second cleaning component.

[0064] Optionally, the second cleaning component is provided with a cutting structure for cutting hair tangled on the second cleaning component.

[0065] Optionally, the cutting structure includes two stacked cutting portions, each extending along the axial direction of the second cleaning member. The two cutting portions are movably arranged relative to each other in the axial and / or radial directions of the second cleaning member to cut hair wrapped around the second cleaning member.

[0066] This utility model also proposes a cleaning device, which includes the cleaning head described above.

[0067] The technical solution provided by this utility model has the following advantages:

[0068] By placing a second cleaning component behind the first cleaning component in the forward direction of the cleaning head, and enabling relative movement between the two in the contact area, hair entangled on the surface of the first cleaning component is effectively removed. This achieves self-cleaning capability of the cleaning equipment during operation, reducing the frequency of manual cleaning by the user. Because the second cleaning component is positioned behind the cleaning head, hair that falls during cleaning will not fall back onto uncleaned areas, avoiding secondary pollution caused by the cleaning action of the second component and further improving the overall cleaning effect. Furthermore, the second cleaning component promptly removes any entangled material from the first cleaning component, maintaining its normal rotation, reducing motor load, and preventing stalling. Attached Figure Description

[0069] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0070] Figure 1 and Figure 2 A schematic diagram of the structure of an embodiment of the cleaning head provided by this utility model;

[0071] Figure 3 for Figure 1 An exploded view of the second cleaning component;

[0072] Figure 4 for Figure 3 A magnified view of a section at point A in the middle;

[0073] Figure 5 for Figure 3 A partial structural diagram of the second cleaning component;

[0074] Figure 6 for Figure 5 A magnified view of a section at point B in the middle;

[0075] Figure 7 for Figure 1 A partial structural diagram of the cleaning head;

[0076] Figure 8 for Figure 1 A plan view of the cleaning head;

[0077] Figure 9 for Figure 8 A cross-sectional view of CC.

[0078] Explanation of icon numbers:

[0079] 100. Cleaning head; 1. Housing; 1a. Cavity; 1b. Inlet; 1c. Outlet; 2. First cleaning component; 3. Second cleaning component; 31. Bristles; 32. Base; 4. Cutting structure; 41. Cutting part; 5. First transmission mechanism; 51. Sliding component; 51a. Guide groove; 6. Mounting shaft; 61. Guide part; 7. Bearing; 8. First drive motor; 9. Second transmission mechanism; 10. Second drive motor.

[0080] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0081] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0082] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0083] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0084] This utility model provides a cleaning head suitable for cleaning floors, tabletops, and beds. The cleaning head can be applied to household cleaning equipment such as vacuum cleaners, sweepers, floor scrubbers, mite removers, fabric cleaners, carpet cleaners, pet hair removers, and handheld multi-functional cleaners. For ease of explanation, the specific structure of the cleaning head will be described below using its application in cleaning equipment as an example; other equipment can be adapted accordingly.

[0085] Please see Figure 1 , Figure 2 , Figure 8 and Figure 9 In the first embodiment of this utility model, the cleaning head 100 includes a housing 1, a first cleaning component 2, and a second cleaning component 3. The housing 1 has a cavity 1a and an inlet 1b and an outlet 1c communicating with the cavity 1a. The first cleaning component 2 is rotatably mounted on the cavity 1a. The second cleaning component 3 is located behind the first cleaning component 2 in the forward direction of the cleaning head 100. The first cleaning component 2 and the second cleaning component 3 are at least partially in contact with each other. At the position where the first cleaning component 2 and the second cleaning component 3 are in contact with each other, the first cleaning component 2 and the second cleaning component 3 are arranged in relative motion. During its rotation stroke, the hair on the first cleaning component 2 is cleaned by the second cleaning component 3.

[0086] During the cleaning process, the cleaning head 100 has an inlet 1b at its bottom, which is used to suck dust and debris from the floor, table, or bed into the internal cavity 1a. The first cleaning component 2 is installed in the cavity 1a inside the housing 1 and can rotate around its own axis to contact the surface being cleaned and perform cleaning. During the cleaning process, especially when cleaning carpets, beds, and other areas, hair or other fibrous materials can easily become entangled, affecting cleaning efficiency and even causing excessive motor load.

[0087] To address this issue, the housing 1 includes an internal cavity 1a, with an inlet 1b and an outlet 1c at the bottom of the housing 1 communicating with the cavity 1a for drawing in dust and expelling air. The first cleaning component 2 is rotatably mounted within the cavity 1a for contacting the ground or bed surface for cleaning operations. A second cleaning component 3 is also provided in the direction of the forward movement of the cleaning head 100, located behind the first cleaning component 2.

[0088] It should be noted that in the cleaning head 100, the first cleaning component 2 and the second cleaning component 3 are structures that combine cleaning and self-cleaning functions.

[0089] The first cleaning component 2 is typically configured as a rotatable roller brush structure, which is installed along the internal cavity 1a of the housing 1 and driven by a drive device to rotate around its own axis. The surface of this roller brush is provided with bristles for sweeping dust, hair, and other debris from the ground and guiding the impurities to the inlet 1b into the cavity 1a. Because it is in direct contact with the ground, it is easily entangled by hair during operation, affecting cleaning efficiency and increasing the motor load.

[0090] The second cleaning element 3 can be a rotating element, a swinging element, or a reciprocating element, such as a small rotatable roller brush, an elastic scraper, or an eccentric swinging scraper. The second cleaning element 3 and the first cleaning element 2 form a shearing or scraping action, causing the hair wrapped around the first cleaning element 2 to be peeled off and discharged through the outlet 1c.

[0091] It should be noted that when the cleaning head 100 performs cleaning operations along the ground, its overall direction of movement is the "forward direction". In this direction, the first cleaning component 2 is located in front, directly contacting the ground and performing the cleaning action, while the second cleaning component 3 is located behind the first cleaning component 2, that is, close to the area already cleaned by the cleaning head 100.

[0092] In terms of structural design, the first cleaning component 2 and the second cleaning component 3 are at least partially in contact with each other. When the cleaning head 100 is working, the two cleaning components rotate synchronously, and they generate relative motion in the contact area. This relative motion causes the hair attached to the surface of the first cleaning component 2 to be "scraped" off and removed by the second cleaning component 3.

[0093] It should also be noted that, in the specific implementation of the cleaning head protection, besides the direct contact method for the second cleaning component 3 to clean or collect hair from the surface of the first cleaning component 2, in other implementations, similar functions can be achieved in a non-contact state through the rational design of airflow, electrostatic adsorption, mechanical scraping auxiliary structures, etc.

[0094] Specifically, in one embodiment, the first cleaning component 2 is a rotating roller brush structure used to sweep the ground and collect dust and hair; the second cleaning component 3 is an airflow guiding structure or air duct assembly located behind it, which does not physically contact the first cleaning component 2. The second cleaning component 3 guides high-speed airflow past the vicinity of the first cleaning component 2 to form a local negative pressure or impact airflow, which blows away or sucks away the loosened hair and transports it to the dust collection system through the outlet 1c.

[0095] In another embodiment, the first cleaning component 2 is still a rotating roller brush structure, and its surface material has a certain electrostatic adsorption capacity, which is convenient for collecting light impurities such as hair; while the second cleaning component 3 is a non-contact electrostatic adsorption plate or electrode structure with opposite charge, located near the rotation path of the first cleaning component 2. The electrostatic field formed between the two causes hair to be adsorbed from the surface of the first cleaning component 2 and transferred to the second cleaning component 3, thereby achieving non-contact cleaning.

[0096] Because the first cleaning component 2 is prone to getting tangled with hair and other fibrous debris during the cleaning process, if the cleaned debris is scattered onto the un-cleaned floor, it may cause "secondary pollution," meaning the area that was just cleaned will be soiled again by the fallen debris. On the other hand, by placing the second cleaning component 3 behind the first cleaning component 2, the cleaned hair will fall onto the already cleaned floor, thus effectively avoiding the above-mentioned problems and ensuring the efficiency and cleanliness of the cleaning process.

[0097] It should also be noted that the "relative motion" here can be achieved in various ways, such as the two rotating in opposite directions, at different speeds, or through sliding friction between the contact surfaces. For example, the second cleaning component 3 can be stationary, rotate in the same direction as the first cleaning component 2 but at a different speed, or even rotate in opposite directions. As long as there is a certain speed difference or relative displacement between the two, the hair on the first cleaning component 2 can be effectively scraped off.

[0098] By placing a second cleaning component 3 behind the first cleaning component 2 in the forward direction of the cleaning head 100, and enabling relative movement between the two in the contact area, hair entangled on the surface of the first cleaning component 2 is effectively removed. This achieves self-cleaning capability of the cleaning equipment during operation, reducing the frequency of manual cleaning by the user. Since the second cleaning component 3 is positioned behind the cleaning head 100 in the forward direction, hair that falls during cleaning will not fall back onto the uncleaned ground, avoiding secondary pollution caused by the cleaning action of the cleaning component and further improving the overall cleaning effect. Furthermore, the second cleaning component 3 promptly removes any entangled material from the first cleaning component 2, maintaining its normal rotation, reducing motor load, and preventing stalling.

[0099] Specifically, the second cleaning component 3 is rotatably mounted on the cavity 1a about its axis, and the tangential movement directions are opposite at the point where the first cleaning component 2 and the second cleaning component 3 come into contact with each other.

[0100] It should be noted that "tangential motion direction" refers to the tangential direction of the motion trajectory of a point on the surface of the cleaning part during rotation.

[0101] It is understandable that for two cleaning components in contact: if they rotate in the same direction, then the tangential motion at the contact point is the same, just like two gears turning in the same direction, and they are not likely to generate friction and cleaning effect. However, if they rotate in opposite directions, that is, the tangential motion at the contact point is opposite, which is equivalent to the two cleaning components moving "face to face" in the contact area, generating a strong relative sliding and friction force, which helps to scrape off hair and other debris wrapped around one of the cleaning components.

[0102] Specifically, when the first cleaning component 2 rotates in a certain direction (e.g., clockwise) to perform cleaning, the second cleaning component 3 rotates in the opposite direction (e.g., counterclockwise). Because their surfaces are in contact and rotate in opposite directions, relative sliding or friction occurs between the contact surfaces. Due to the opposing tangential motion, significant friction and shear forces are generated at the contact points, enabling the second cleaning component 3 to effectively "scrape off" hair and other debris entangled in the first cleaning component 2, thus achieving an automatic cleaning function.

[0103] In actual operation, although the second cleaning component 3 serves to clean the first cleaning component 2, it also rotates and comes into direct contact with hair. Therefore, hair or other filaments that were originally scraped off from the first cleaning component 2 may adhere to and gradually become entangled on the surface of the second cleaning component 3, which may itself become a new target for hair entanglement. If this is not effectively addressed, it will also affect the long-term operating efficiency of the cleaning head 100, and may even cause problems such as the cleaning component jamming or the motor overload.

[0104] Furthermore, to better clean the hair on the second cleaning component 3, in this embodiment, the second cleaning component 3 is rotatably mounted on the cavity 1a about its axis, and the second cleaning component 3 is provided with a cutting structure 4 for cutting the hair wrapped around it. This cutting structure 4 is used to cut off any hair that may be wrapped around the second cleaning component 3, preventing tangling and shortening its length so that it can be discharged from the outlet 1c and enter the dust collection box or other collection device.

[0105] Understandably, during the cleaning process, the first cleaning component 2 is primarily responsible for contacting the surfaces being cleaned, such as floors, beds, and tabletops, to remove dust, hair, and other debris. It is the core component of the cleaning head 100, enabling it to perform basic cleaning functions. Therefore, the structural design of the first cleaning component 2 should be as simple and lightweight as possible to ensure good rotational performance and good adhesion to the floor. Integrating the cutting structure 4 into the first cleaning component 2 would not only increase its weight and structural complexity but may also affect its cleaning efficiency and operational stability.

[0106] It would be more reasonable to place the cutting structure 4 inside the second cleaning component 3. When the first cleaning component 2 rotates, the relative movement between it and the adjacent second cleaning component 3 can scrape off the hair on the first cleaning component 2 and transfer it to the surface of the second cleaning component 3. At this time, since the cutting structure 4 is embedded in the second cleaning component 3, it can cut the hair wrapped around its surface in time, preventing hair accumulation. The cut hair is shorter and easier to fall off, and is discharged into the dust collection box or other collection device through the outlet 1c.

[0107] Thus, the design of integrating the cutting structure 4 into the second cleaning component 3 not only saves space inside the housing 1, but also helps to achieve a more compact overall structural design, facilitating the miniaturization and weight reduction of the cleaning head 100.

[0108] Furthermore, to prevent the cutting structure 4 from causing unnecessary interference to the first cleaning component 2, please refer to... Figures 3 to 6 The cutting structure 4 is located inside the outer circumference of the second cleaning component 3 and does not protrude outward from the outer contour of the second cleaning component 3.

[0109] "The cutting structure 4 is located inside the outer circumference of the second cleaning component 3 and does not protrude outward from the outer contour." The "outer contour" refers to the surface shape of the outermost layer of the second cleaning component 3, which is the maximum boundary that the cleaning component contacts with surrounding parts or the object being cleaned when it rotates.

[0110] In other words, the cutting structure 4 is embedded inside the cleaning component or in a surface groove, and does not extend to the outermost part of the cleaning component like a traditional blade. It is not directly exposed like a "protruding blade", but is "hidden" within the structure of the cleaning component.

[0111] By setting the cutting structure 4 on the inner side of the outer circumference of the second cleaning component 3 and not protruding outward from the overall outer contour of the cleaning component, it is possible to effectively prevent the cutting structure 4 from making unnecessary contact with the first cleaning component 2 during the operation of the cleaning component, thereby avoiding possible damage or interference to the surface of the first cleaning component 2 (especially the bristles 31).

[0112] Since the cutting structure 4 does not extend beyond the outer contour of the cleaning component, it will not affect the normal contact state between the second cleaning component 3 and the first cleaning component 2, nor will it disrupt the frictional relationship between them used to achieve hair removal, thus ensuring the operation of the self-cleaning function of the cleaning component.

[0113] It should be noted that the cutting structure 4 can be composed of micro blades, cutting teeth or other components with shearing capabilities, arranged near the root of the bristles 31, and its reasonable arrangement ensures that it can still perform a good cutting effect during rotation.

[0114] More specifically, the cutting structure 4 includes two interacting cutting portions 41, each of which extends along the axial direction of the second cleaning member 3. The two cutting portions 41 are movably arranged relative to each other in the axial direction and / or radial direction of the second cleaning member 3 to cut hair wrapped around the second cleaning member 3.

[0115] Specifically, the cutting structure 4 includes two cutting portions 41 that can cooperate to perform a cutting action. These two cutting portions 41 extend along the axial direction of the second cleaning component 3, and at least one cutting portion 41 can be movably positioned relative to the other cutting portion 41 in the axial or radial direction. This allows relative movement between the two cutting portions 41, thereby creating a "cutting" effect similar to scissors, cutting off the hair wrapped around the surface of the second cleaning component 3, and preventing it from continuing to accumulate and affecting the normal operation of the cleaning component.

[0116] The two cutting sections 41 can be fixed at different positions on the second cleaning member 3, for example, one can be fixed while the other can slide within a certain range; or both can be movable, moving closer or further apart via an elastic element or drive mechanism. When the second cleaning member 3 is configured to rotate, the hair wrapped around its surface is guided to the area between the two cutting sections 41. At this time, due to the relative movement between the two cutting sections 41, they apply a shearing force to the hair at the contact point, cutting the hair.

[0117] It should be noted that the relative range of motion between the two cutting sections 41 can be adjusted according to actual needs to adapt to hair entanglement of different thicknesses or densities, thereby improving the applicability and stability of the cleaning head 100.

[0118] To achieve the aforementioned shearing function, the cleaning head 100 also includes a first transmission mechanism 5, which is disposed between the second cleaning member 3 and the two cutting sections 41. Its function is to convert the rotational motion of the second cleaning member 3 into the relative motion stroke between the two cutting sections 41. For example, when the second cleaning member 3 rotates, the transmission mechanism can drive one of the cutting sections 41 to slide or swing relative to the other cutting section 41, thereby generating a shearing force.

[0119] Specifically, the first transmission mechanism 5 can adopt a gear and rack structure, a cam and connecting rod structure, a screw transmission mechanism, or other similar mechanical transmission methods. These structures can convert the continuous rotational motion of the second cleaning component 3 into a periodic cutting action, so that the two cutting parts 41 continuously open and close during the rotation of the cleaning component, and continuously perform efficient cutting treatment on the hair wrapped around its surface.

[0120] Since the shearing action between the two cutting sections 41 is driven by the rotation of the second cleaning component 3 itself, no additional motor or drive device is required. The structure is simple, compact, and easy to integrate into the internal space of the cleaning head 100. Furthermore, this structure can automatically adjust the shearing frequency according to changes in the rotation speed of the cleaning component, adapting it to the hair cleaning needs of different usage scenarios.

[0121] For details, please continue reading Figures 3 to 6 In this embodiment, the second cleaning member 3 includes a base 32 and bristles 31 mounted on the periphery of the base 32. One of the cutting portions 41 is fixedly mounted on the base 32 and at least partially protrudes outward from the surface of the base 32. The first transmission mechanism 5 includes a sliding member 51, which is movably disposed relative to the base 32 along the axial direction and / or radial direction of the second cleaning member 3. Another cutting portion 41 is fixedly mounted on the sliding member 51 and at least partially protrudes outward from the surface of the base 32.

[0122] Two cutting parts 41 are respectively installed on the base 32 of the second cleaning part 3 and the sliding part 51, and the rotational motion of the cleaning part is converted into the reciprocating motion of the sliding part 51 through the first transmission mechanism 5, so as to realize the automatic cutting action between the two cutting parts 41.

[0123] This design not only fully utilizes the rotational power of the second cleaning component 3, avoiding the introduction of additional driving components, but also ensures good synchronization and stability of the cutting action. Through the flexible movement of the slider 51, an effective cutting angle can be formed between the two cutting sections 41, efficiently cutting hair entangled on the surface of the cleaning component and preventing hair accumulation from affecting the cleaning effect. Furthermore, the design of the cutting section 41 protruding from the surface of the base 32 ensures that the cutting section 41 can effectively target the hair without losing its cutting ability due to excessive depth.

[0124] In one specific embodiment, a guide structure is provided between the sliding member 51 and the second cleaning member 3 to guide the sliding member 51 to perform controllable reciprocating motion in the axial direction or radial direction of the second cleaning member 3.

[0125] Specifically, the base 32 of the second cleaning member 3 and the sliding member 51 are provided with a guide groove 51a, and the other is provided with a guide portion 61 that matches the guide groove 51a. The guide portion 61 can be a protrusion, a pin, or other adaptable structure, which can be inserted into the guide groove 51a and slide along it.

[0126] When the second cleaning component 3 rotates, the guide portion 61 rotates with the cleaning component and slides relative to it within the guide groove 51a. Due to the shape design of the guide groove 51a, such as an inclined groove, an arc groove, or a curved groove, the guide portion 61 generates a certain displacement component during its sliding process, pushing the slider 51 to move axially or radially, so as to convert the rotational motion of the second cleaning component 3 into the linear or oscillating motion of the slider 51.

[0127] A cutting part 41 is mounted on the slider 51, so when it moves, the cutting part 41 will move relative to another cutting part 41 fixed on the base 32, forming a shearing stroke similar to scissors. The shearing action can continue during the rotation of the second cleaning member 3, achieving efficient cutting of hair wrapped around its surface.

[0128] By providing a guide groove 51a and a guide portion 61 between the slider 51 and the second cleaning component 3, the slider 51 can automatically generate reciprocating motion during the rotation of the cleaning component, thereby driving the two cutting portions 41 to form a shearing action. This mechanical linkage method is not only simple in structure and stable in operation, but also relies entirely on the rotational power of the second cleaning component 3 itself, without the need to introduce an additional drive device, reducing energy consumption and manufacturing costs, and is suitable for the miniaturized spatial layout of the cleaning head 100.

[0129] Specifically, the extension direction of the guide groove 51a is inclined to intersect the axial direction of the second cleaning member 3, and the guide portion 61 extends radially along the second cleaning member 3 and passes through the guide groove 51a.

[0130] The guide groove 51a is configured to intersect the axis of the cleaning component at an angle, and the guide portion 61 extends radially along the cleaning component and passes through it. This allows the sliding of the guide portion 61 within the guide groove 51a during the rotation of the cleaning component to be naturally converted into axial displacement of the sliding member 51. This configuration, by utilizing the angular characteristics of the inclined guide groove 51a, converts rotational motion into linear motion, thereby driving the shearing action between the two cutting portions 41 and achieving continuous and efficient cutting of hair on the surface of the second cleaning component 3.

[0131] For more specific details, please refer to Figures 4 to 6 In this embodiment, the first transmission mechanism 5 further includes a mounting shaft 6 extending along the axis of the second cleaning component 3. One end of the mounting shaft 6 is fixedly connected to the housing 1 of the cleaning head 100, and the other end extends into the interior of the second cleaning component 3, with a bearing 7 sleeved around it. The base 32 of the second cleaning component 3 is connected to the outer ring of the bearing 7, so that the entire cleaning component can rotate freely relative to the mounting shaft 6 under the action of the bearing 7.

[0132] A guide portion 61 extends outward from the side of the mounting shaft 6. This guide portion 61 can be a pin or a protrusion structure, and forms a sliding fit with the guide groove 51a provided on the sliding member 51. When the second cleaning member 3 rotates with the bearing 7, the sliding member 51 and its guide groove 51a also rotate. However, since the guide portion 61 is fixed on the mounting shaft 6, the guide portion 61 will slide relative to the guide groove 51a.

[0133] Because the guide groove 51a is inclined, the guide part 61 will generate a displacement component along the axis of the cleaning part during its sliding process, which will push the slider 51 to move axially. A cutting part 41 is installed on the slider 51, and another cutting part 41 is fixed on the base 32 of the cleaning part. Therefore, the movement of the slider 51 will cause the two cutting parts 41 to form a scissor-like opening and closing action.

[0134] By introducing a structural combination of mounting shaft 6 and bearing 7 into the first transmission mechanism 5, and using the guide part 61 on the mounting shaft 6 and the guide groove 51a on the sliding member 51 for driving cooperation, the second cleaning member 3 can automatically drive the sliding member 51 to generate axial displacement during its own rotation, thereby driving the two cutting parts 41 to form a shearing action.

[0135] Specifically, in the first embodiment, each of the cutting portions 41 includes a blade that extends continuously along the axial direction of the second cleaning member 3 and does not protrude from the axial end face of the second cleaning member 3.

[0136] Specifically, the blade is embedded entirely inside or near the surface of the second cleaning element 3, and its two ends do not extend beyond the axial end face of the cleaning element, i.e., they do not protrude outwards. This allows the blade to uniformly cut the hair wrapped around its surface along the entire length of the cleaning element.

[0137] In the second embodiment, each of the cutting portions 41 includes a plurality of blades spaced apart in the axial direction of the second cleaning member 3, so as to reduce the amount of material used while maintaining good shearing performance.

[0138] Further, in this embodiment, the second cleaning member 3 includes a base 32 and bristles 31 installed around the base 32. The cutting structure 4 is installed on the base 32 and protrudes outward from the base 32 along the radial direction of the second cleaning member 3. The maximum radial distance between the cutting structure 4 and the central axis of the base 32 is d1, and the maximum radial distance between the bristles 31 and the central axis of the base 32 is d2, where d2 > d1.

[0139] It should be noted that "maximum radial distance" refers to the maximum straight-line distance between the outermost point of a structure (such as bristle 31 or cutting structure 4) and its rotation center of the second cleaning component 3. This distance is measured from the geometric center of the cleaning component along a direction perpendicular to the axis of the cleaning component to the outermost position of the structure.

[0140] Specifically: d1 refers to the maximum radial distance between the cutting structure 4 and the central axis of the base 32 of the second cleaning element 3 to its outermost edge; d2 refers to the maximum radial distance between the bristles 31 and the central axis of the base 32 of the second cleaning element 3 to its outermost end.

[0141] Setting d2 to be greater than d1 means that although the cutting structure 4 protrudes outward, its position is always inside the bristles 31. During the process of the second cleaning component 3 and the first cleaning component 2 approaching and making contact, the bristles 31 always contact the first cleaning component 2 first, while the cutting structure 4 is "protected" inside by the bristles 31 and will not directly contact the surface of the first cleaning component 2 or the bristles 31. Even if, during actual operation, the bristles 31 undergo slight deformation due to the rotation of the cleaning component, pressure changes, or uneven ground, the cutting structure 4 will not accidentally contact the first cleaning component 2, thus effectively preventing accidental damage to the first cleaning component 2 due to the cutting structure 4.

[0142] Specifically, in this embodiment, 1mm ≤ d2 - d1 ≤ 3mm. Preferably, 1.5mm ≤ d2 - d1 ≤ 2mm.

[0143] It should be noted that if the radial distance difference between the bristles 31 and the cutting structure 4 is too small, such as less than 1 mm, the cutting structure 4 may be accidentally exposed and come into contact with the first cleaning component 2 when the bristles 31 are deformed, causing accidental cutting of the surface of the first cleaning component 2, resulting in wear or even jamming; while if the distance difference is too large, such as more than 3 mm, the cutting structure 4 may be far from the outer surface of the cleaning component, affecting its cutting efficiency for tangled hair.

[0144] Therefore, by controlling the distance difference between 1 and 3 mm, and further optimizing it to between 1.5 and 2 mm, it is possible to ensure good shearing effect while effectively avoiding unnecessary interference between the cutting structure 4 and the first cleaning component 2, thus achieving the best balance between cleaning efficiency and safety.

[0145] Specifically, in one embodiment, the outer diameter of the cross-section of the second cleaning member 3 is set to be smaller than the outer diameter of the cross-section of the first cleaning member 2.

[0146] It should be noted that since the first cleaning component 2 is mainly used to directly contact the surfaces to be cleaned, such as the ground, bed, or table, and undertakes the main cleaning task, it needs a larger outer diameter to ensure good ground contact and cleaning efficiency. The main function of the second cleaning component 3 is to assist in removing hair from the first cleaning component 2 and to work with the cutting structure 4 to complete the hair removal work; therefore, it does not need to have the same size as the first cleaning component 2.

[0147] By designing the outer diameter of the second cleaning component 3 to be smaller, more space can be reserved for the layout of its surrounding components and housing 1 without reducing cleaning performance. This facilitates a compact design of the overall structure of the cleaning head 100, which is especially suitable for household cleaning equipment with high space requirements, such as robot vacuum cleaners and handheld vacuum cleaners.

[0148] In addition, the smaller size of the second cleaning component 3 results in a smaller moment of inertia, making it easier to respond to the actions of the drive components and improving the efficiency of collaborative work with the first cleaning component 2.

[0149] Specifically, in this embodiment, the hardness of the material on the surface of the second cleaning component 3 is set to be greater than the hardness of the material on the surface of the first cleaning component 2.

[0150] Here, "hardness" refers to a material's ability to resist external forces penetrating its surface, and is usually measured using Shore hardness or other common hardness standards. In the field of cleaning equipment, soft materials (such as rubber or elastic polymers) are commonly used on the surface of cleaning parts to improve adhesion and cleaning effect on surfaces such as floors and beds; however, if used for shaving hair, a material with a certain degree of hardness is required to effectively peel hair attached to another cleaning part.

[0151] Therefore, in this utility model, the first cleaning component 2 is mainly responsible for directly contacting the surfaces to be cleaned, such as the ground, bed, and table. To improve its adhesion and cleaning efficiency, its surface is usually made of a softer material, such as soft rubber or a brush structure with a certain degree of elasticity. The second cleaning component 3 is mainly used to scrape the hair off the first cleaning component 2. To enhance its scraping ability, its surface material is made of a harder material, such as hard rubber, plastic, or a structure with rigid brush strips.

[0152] When the first cleaning component 2 rotates and comes into contact with the second cleaning component 3, the second cleaning component 3, being made of a harder material, can effectively peel off the hair attached to the surface of the first cleaning component 2 during the relative movement of the two components, thereby preventing hair accumulation from affecting the cleaning effect.

[0153] More specifically, the second cleaning component 3 includes at least a portion of a hard-bristled brush, a soft rubber component, or soft bristles, while the first cleaning component 2 is a soft-bristled brush with soft bristles.

[0154] Considering the different functional roles of the first cleaning component 2 and the second cleaning component 3 in the cleaning head 100, the first cleaning component 2 utilizes a soft material to enhance its adaptability and cleaning effect on various floor or fabric surfaces, and is especially suitable for handling complex surfaces such as carpets and beds; while the second cleaning component 3 includes at least a hard brush, soft rubber parts or soft fluff, and has a high degree of hardness, which can effectively scrape off the hair tangled on the surface of the first cleaning component 2 during contact, preventing hair accumulation from causing blockage or increased motor load.

[0155] Specifically, in order to improve the compactness and rationality of the overall structure of the cleaning head 100, in this embodiment, the cleaning head 100 further includes a first drive motor 8 for driving the second cleaning component 3 to rotate and a second drive motor 10 for driving the first cleaning component 2 to rotate. The first drive motor 8 and the second drive motor 10 are both located on the rear side of the first cleaning component 2 and are arranged sequentially along the axial direction of the second cleaning component 3.

[0156] It is understandable that the first drive motor 8 and the second drive motor 10 are not arranged on opposite sides of the cleaning component, but are uniformly set on the rear side of the first cleaning component 2 and arranged along the axial direction of the second cleaning component 3. For example, inside the housing 1 of the cleaning head 100, the two motors can be installed in a staggered manner to form a motor array parallel to the axis of the second cleaning component 3, thereby avoiding excessive lateral space occupation and reserving more installation space for other components.

[0157] Furthermore, the motor layout of this invention also facilitates the design of subsequent transmission structures. For example, the first drive motor 8 can transmit power to the rotating shaft end of the second cleaning component 3 via a gear set or belt, while the second drive motor 10 can directly drive the first cleaning component 2, enabling the two cleaning components to achieve more flexible speed matching and steering control under the control of their respective motors.

[0158] Both the first drive motor 8 and the second drive motor 10 are positioned behind the first cleaning component 2 and arranged sequentially along the axial direction of the second cleaning component 3, resulting in a more compact and rational layout of the drive device inside the cleaning head 100. This not only saves lateral space and improves the miniaturization of the cleaning head 100, but also facilitates independent drive control of the two cleaning components, allowing for adjustment of their respective speeds and directions according to actual usage needs, thereby improving hair removal efficiency. Furthermore, since the two motors are concentrated in the same area, it also simplifies the structure of the housing 1, optimizes the assembly process, and reduces manufacturing costs and maintenance difficulty.

[0159] Furthermore, in this embodiment, the angular velocity of the second cleaning component 3 is set to be less than the angular velocity of the first cleaning component 2.

[0160] It should be noted that "angular velocity" refers to the speed at which the cleaning component rotates around its own axis.

[0161] To improve hair removal efficiency, the two cleaning components can rotate in the same direction, but their rotation speeds are different. Specifically, the first cleaning component 2, as the core component mainly responsible for cleaning surfaces such as floors and beds, rotates at a higher speed to quickly collect dust and hair; the second cleaning component 3 rotates at a lower angular velocity, so that there is a difference in tangential velocity between the two components during contact with the first cleaning component 2, thereby creating a relative sliding effect in the contact area.

[0162] For example, when the first cleaning component 2 rotates clockwise at high speed, the second cleaning component 3 also rotates clockwise. However, due to its smaller angular velocity, a certain relative motion rate will still be formed at the contact point between the two. This allows the hair attached to the surface of the first cleaning component 2 to be transferred more effectively to the second cleaning component 3, and further processed by the cutting structure 4 to prevent the hair from becoming entangled for a long time and affecting the cleaning performance.

[0163] Furthermore, by reasonably controlling the angular velocity difference between the two cleaning components, the adaptability of the cleaning head 100 to different types of hair (such as long hair, short hair, pet hair, etc.) can be adjusted, thereby improving the overall practicality and stability of the cleaning head 100.

[0164] Furthermore, in order to optimize the hair handling process during cleaning, in this embodiment, the inlet 1b and the outlet 1c are arranged at intervals in the front and rear of the housing 1. The first cleaning component 2 is arranged corresponding to the inlet 1b, and the second cleaning component 3 is arranged close to the outlet 1c. The second cleaning component 3 is located behind the first cleaning component 2 and above the axis of the outlet 1c.

[0165] Specifically, the cleaning head 100 includes an inlet 1b for allowing dust, hair, and other debris to enter, and an outlet 1c for discharging these debris into a dust collection box or a vacuum system. These two openings are typically located at the bottom (near the surface being cleaned) and the rear (near the connection between the cleaning head 100 and the dust collection device main unit) of the housing 1.

[0166] It should be noted that inlet 1b is used to receive dust, hair and other debris from surfaces such as the ground, bed or table; outlet 1c uses the suction airflow to transport the collected debris to the dust collection device, thus achieving a closed loop of cleaning function.

[0167] The first cleaning component 2 is positioned corresponding to the inlet 1b and is mainly used to directly contact and clean hair and dust on the ground; while the second cleaning component 3 is located above and behind the first cleaning component 2, close to the outlet 1c, and above the axis of the outlet 1c.

[0168] This layout places the contact area between the two cleaning components closer to the outlet 1c, rather than near the inlet 1b. When the first cleaning component 2 rotates, the hair attached to its surface is scraped off at the contact point with the second cleaning component 3 and falls off. Since this contact point is close to the outlet 1c, the hair can be quickly absorbed and carried away by the airflow at the outlet 1c, preventing it from accumulating or getting tangled again.

[0169] In addition, the second cleaning component 3 may also entangle some hair during operation. This hair is cut into shorter segments after being processed by the cutting structure 4, making it easier for it to fall near the outlet 1c and be smoothly carried out of the cleaning head 100 by the airflow. This avoids secondary entanglement or blockage caused by long falling distances or complex paths. At the same time, the shorter airflow path and smoother hair movement also help reduce the motor load and extend the service life of the equipment.

[0170] In the second embodiment provided by this utility model, the cleaning head 100 includes a housing 1, a first cleaning component 2, a second cleaning component 3, and a drive assembly. The housing 1 has a cavity 1a and an inlet 1b and an outlet 1c communicating with the cavity 1a. The first cleaning component 2 is rotatably mounted on the housing 1 about a first direction. The cross-sectional diameter of the second cleaning component 3 is set to be smaller than that of the first cleaning component 2. The second cleaning component 3 moves in the same direction as the first cleaning component 2. In the forward direction of the cleaning head 100, the second cleaning component 3 is located above and behind the first cleaning component 2 and at least partially contacts the first cleaning component 2, for cleaning dirt on the first cleaning component 2 during the rotation stroke of the second cleaning component 3. The drive assembly is disposed in the housing 1 and is used to drive the first cleaning component 2 and / or the second cleaning component 3 to rotate.

[0171] The housing 1 has a cavity 1a inside, and an inlet 1b and an outlet 1c communicating with the cavity 1a at the bottom, so as to suck in dust and expel air. The first cleaning component 2 is rotatably installed inside the housing 1, and is usually located at the foremost position of the cleaning head 100, directly contacting the ground or bed to perform cleaning operations.

[0172] It should be noted that since the first cleaning component 2 is mainly used to directly contact the surfaces to be cleaned, such as the ground, bed, or table, and undertakes the main cleaning task, it needs a larger outer diameter to ensure good ground contact and cleaning efficiency. The main function of the second cleaning component 3 is to assist in removing hair from the first cleaning component 2 and to work with the cutting structure 4 to complete the hair removal work; therefore, it does not need to have the same size as the first cleaning component 2.

[0173] By designing the outer diameter of the second cleaning component 3 to be smaller, more space can be reserved for the layout of its surrounding components and housing 1 without reducing cleaning performance. This facilitates a compact design of the overall structure of the cleaning head 100, which is especially suitable for household cleaning equipment with high space requirements, such as robot vacuum cleaners and handheld vacuum cleaners.

[0174] In addition, the smaller size of the second cleaning component 3 results in a smaller moment of inertia, making it easier to respond to the actions of the drive components and improving the efficiency of collaborative work with the first cleaning component 2.

[0175] The second cleaning component 3 is positioned above and behind the first cleaning component 2, that is, when viewed from the forward direction of the cleaning head 100, it is located behind and slightly above the first cleaning component 2. This arrangement makes the contact area between the two cleaning components closer to the outlet 1c, rather than closer to the inlet 1b. When the first cleaning component 2 rotates, the hair attached to its surface is scraped off at the contact point with the second cleaning component 3 and falls off; since this contact point is close to the outlet 1c, this hair can be quickly absorbed and carried away by the airflow at the outlet 1c, preventing accumulation or re-entanglement.

[0176] Furthermore, the second cleaning component 3 rotates in the same direction as the first cleaning component 2, meaning they rotate in the same direction. In this arrangement, when the first cleaning component 2 becomes entangled with hair or dust during cleaning, these debris are drawn to the contact area with the second cleaning component 3. Due to a certain relative speed difference between the two cleaning components (e.g., different rotational speeds or different diameters), the second cleaning component 3 can apply frictional force to the entangled material on the surface of the first cleaning component 2, thereby achieving its peeling and cleaning.

[0177] The drive assembly is located inside the housing 1 and is used to drive the first cleaning component 2 and / or the second cleaning component 3 to rotate. The driving method can be achieved through gear transmission, belt linkage, or separate motor drive, etc., to ensure that the two cleaning components maintain a stable synchronous state during operation.

[0178] Specifically, the drive component can adopt at least one of the following drive forms according to the actual product design requirements:

[0179] One approach is to drive two cleaning components simultaneously using a single motor. For example, by using gear transmission, belt transmission, or a multi-stage linkage mechanism, the power output from the motor can be transmitted to the first cleaning component 2 and the second cleaning component 3, causing them to rotate synchronously.

[0180] Another approach is to use two independent motors, each driving its corresponding cleaning component. For example, the first cleaning component 2 is driven by a main motor, while the second cleaning component 3 is controlled by a separate auxiliary motor.

[0181] In a preferred embodiment of the present invention, the drive assembly includes two independent motors: a first drive motor 8 for driving the second cleaning component 3 to rotate, and a second drive motor 10 for driving the first cleaning component 2 to rotate.

[0182] Specifically, the first drive motor 8 is used to drive the second cleaning component 3, and its installation position is preferably set above the second cleaning component 3 or behind the first cleaning component 2. This arrangement makes full use of the space at the rear and top of the cleaning head 100 and avoids interference with the first cleaning component 2 and related structures.

[0183] The second drive motor 10 is used to drive the first cleaning component 2. Its installation position can be selected according to the actual structural design and placed inside the first cleaning component 2 (for example, using a hollow shaft motor embedded inside the cleaning component), or placed behind the first cleaning component 2, driving the cleaning component to rotate through a transmission mechanism (such as gears, belts, or couplings). Placing the motor inside or behind the cleaning component helps to reduce the external space occupation, making the overall structure of the cleaning head 100 more compact, which is beneficial for adapting to the space constraints of small cleaning equipment such as robotic vacuum cleaners.

[0184] In this embodiment, the specific structure of the cleaning head 100 includes at least one or more specific embodiments of the first embodiment of the present invention, which will not be described in detail here.

[0185] In the third embodiment provided by this utility model, the cleaning head 100 includes a housing 1, a first cleaning component 2, and a second cleaning component 3. The housing 1 has a cavity 1a with an opening facing the object to be cleaned. The first cleaning component 2 is configured as a main cleaning brush for cleaning the surface to be cleaned and is a surface cleaning component with a first hardness. The second cleaning component 3 is configured as an auxiliary cleaning brush for contacting the first cleaning component 2 to clean the first cleaning component 2. The first cleaning component 2 and the second cleaning component 3 are configured with at least some differences in material, hardness, or density.

[0186] Specifically, the housing 1 has a cavity 1a with an opening facing the surface to be cleaned (such as the floor or bed), so that the cleaning component can directly contact the area to be cleaned at the opening and complete the cleaning operation in conjunction with the dust suction structure. In other words, the opening can be regarded as the inlet 1b of the housing 1.

[0187] The first cleaning component 2 serves as the main cleaning brush, primarily used for cleaning operations in contact with the floor or bed. Its surface is equipped with cleaning elements to provide a certain degree of elasticity and flexibility, facilitating conformity to the floor and effectively adsorbing dust and hair.

[0188] The second cleaning component 3, acting as an auxiliary cleaning brush, is located inside the cleaning head 100 and at least partially contacts the first cleaning component 2. Its main function is to self-clean the first cleaning component 2, that is, to remove hair, fibers, and other debris adhering to its surface during operation. To effectively "scrape" off the deposits on the first cleaning component 2 and achieve automatic cleaning of the main cleaning brush, this can be achieved by setting differences in the material, hardness, or density of the two cleaning components.

[0189] Specifically, in terms of materials, the first cleaning component 2 is typically made of a soft and somewhat elastic material (such as nylon bristles). This material conforms better to the ground, improving the efficiency of dust and hair pickup. In contrast, the second cleaning component 3 can use a harder material (such as hard plastic or rubber), which has a higher coefficient of friction. This helps to effectively scrape away hair tangled in the first cleaning component 2 during contact, rather than allowing the hair to become further embedded. Therefore, by choosing the right materials, the first cleaning component 2 can have a stronger hair pickup capability, while the second cleaning component 3 focuses on efficiently removing hair.

[0190] In terms of hardness, the first cleaning component 2 and the second cleaning component 3 can achieve different hardness settings by using different materials and utilizing different material properties, or they can be made of the same material but with different processes or formulations to achieve different hardnesses. For example, both the first cleaning component 2 and the second cleaning component 3 can be made of polyurethane (PU). The first cleaning component 2, as the main cleaning brush, requires good flexibility and floor adhesion, so a low-hardness polyurethane material (such as Shore A hardness 60-70) is used, and its surface bristles or roller body have a certain degree of elasticity. The second cleaning component 3, as an auxiliary cleaning brush, has its hardness significantly increased (such as Shore A hardness 85-95) by reducing the plasticizer content or increasing the crosslinking density, thus forming an effective shearing action when in contact with the first cleaning component 2.

[0191] In terms of density, the first cleaning component 2 and the second cleaning component 3 can be made of the same material, but different functional characteristics can be achieved by adjusting the density difference. Specifically: the first cleaning component 2, as the main cleaning brush, can be made of low-density nylon material (e.g., with a density of 1.10 g / cm³). 3 At this density, nylon has good elasticity and flexibility, making the bristles less prone to breakage, but it is also more susceptible to tangling with hair. The second cleaning component 3 also uses nylon 6 material, but its density is increased (e.g., to 1.15 g / cm³) during manufacturing by increasing molding pressure or reducing the foaming ratio. 3 This results in higher hardness and wear resistance.

[0192] Specifically, in this embodiment, the second cleaning component 3 includes at least a hard-bristled brush, a soft rubber component, or soft bristles, and the surface cleaning component of the first cleaning component 2 is a soft bristle brush with soft bristles.

[0193] The first cleaning component 2 serves as the main cleaning brush, and its surface cleaning component adopts a soft bristle brush structure. This material has good flexibility and conformability, enabling it to better contact uneven surfaces such as floors or beds, thereby improving its ability to adsorb and clean dust, fine particles, and other dirt. At the same time, the soft bristle brush is less likely to scratch smooth surfaces such as wooden floors and tiles.

[0194] The second cleaning component 3 serves as an auxiliary cleaning brush, and its surface cleaning components at least partially include a hard-bristled brush, a soft rubber component, or soft bristles. The hard-bristled brush can be made of plastic, nylon, or other materials with a certain degree of rigidity, possessing strong friction and peeling capabilities. The soft bristles can be adjusted using different processes or formulations to make their hardness slightly greater than that of the material of the first cleaning component 2.

[0195] Furthermore, in this embodiment, the first cleaning member 2 and the second cleaning member 3 have a contact position, and the tangential movement directions of the contact position are opposite.

[0196] Specifically, when the first cleaning component 2 rotates in a certain direction (e.g., clockwise) to perform cleaning, the second cleaning component 3 rotates in the opposite direction (e.g., counterclockwise). Because their surfaces are in contact and rotate in opposite directions, relative sliding or friction occurs between the contact surfaces. Due to the opposing tangential motion, significant friction and shear forces are generated at the contact points, enabling the second cleaning component 3 to effectively "scrape off" hair and other debris entangled in the first cleaning component 2, thus achieving an automatic cleaning function.

[0197] In this embodiment, the specific structure of the cleaning head 100 includes at least one or more specific embodiments of the first embodiment of the present invention, which will not be described in detail here.

[0198] In the fourth embodiment provided by this utility model, the cleaning head 100 includes a housing 1, a first cleaning component 2, and a second cleaning component 3. The first cleaning component 2 is rotatably disposed inside the housing 1. The second cleaning component 3 contacts the first cleaning component 2 and is used to clean or collect dirt on the first cleaning component 2. The relative rotational speed of the first cleaning component 2 and the second cleaning component 3 at the contact point is set as the sum of the absolute values ​​of the linear velocities of the first cleaning component 2 and the second cleaning component 3.

[0199] The first cleaning component 2 is the main cleaning assembly, driven by a drive mechanism to rotate and sweep away dust, debris, hair, and other impurities from the floor. The second cleaning component 3 rotates in the opposite direction to the first cleaning component 2, or has a different angular velocity, thus creating relative motion at the point of contact between the two components.

[0200] To achieve the relative rotational speed of the first cleaning component 2 and the second cleaning component 3 at the contact point, which is set to the sum of the absolute values ​​of the linear velocities of the first cleaning component 2 and the second cleaning component 3, the following scenarios can be considered:

[0201] Case 1: The first cleaning component 2 rotates counterclockwise, and the second cleaning component 3 is set to rotate counterclockwise.

[0202] When the first cleaning component 2 rotates counterclockwise with a certain angular velocity, the second cleaning component 3 rotates counterclockwise with another angular velocity, and the two components move in opposite directions at the contact point. Let the linear velocity of the first cleaning component 2 be v1 and the linear velocity of the second cleaning component 3 be v2, then the relative linear velocities of the two components at the contact point are: v = |v1| + |v2|.

[0203] This reverse rotation significantly enhances the shear force between the two cleaning components, making it easier to peel off and remove hair, fibers, and other impurities attached to the surface of the first cleaning component 2. This structural design is suitable for applications requiring high cleaning efficiency, such as pet-friendly home environments or for users with long hair.

[0204] Scenario 2: The first cleaning component 2 rotates clockwise, and the second cleaning component 3 is set to rotate clockwise.

[0205] This situation is similar to situation one, except that the initial rotation direction of the first cleaning component 2 and the second cleaning component 3 is adjusted to a clockwise direction. At this time:

[0206] The first cleaning component 2 rotates at the contact point with a linear velocity v1; the second cleaning component 3 rotates in the opposite direction to v1 with a linear velocity v2; similarly, at the contact point, since the two rotate in opposite directions, their relative linear velocities are still: v = |v1| + |v2|.

[0207] In this way, a highly efficient self-cleaning function can also be achieved. Furthermore, by adjusting the angular velocity or diameter ratio of the two components, the shear force can be further optimized to adapt to different types of dirt cleaning needs.

[0208] Scenario 3: The first cleaning component 2 rotates clockwise (or counterclockwise), while the second cleaning component 3 is set to remain stationary.

[0209] In this configuration, the first cleaning component 2 is rotating, while the second cleaning component 3 is stationary, meaning its linear velocity is 0. Assuming the first cleaning component 2 rotates at a linear velocity v1, the relative linear velocities of the two at the contact point are: v = |v1| + 0 = |v1|.

[0210] Although the second cleaning component 3 itself does not move, the first cleaning component 2 slides relative to it, still creating a shearing effect, thus partially cleaning the deposits on the surface of the first cleaning component 2. This structural form is relatively simple and suitable for systems that reduce energy consumption and simplify the drive.

[0211] In this embodiment, the specific structure of the cleaning head 100 includes at least one or more specific embodiments of the first embodiment of the present invention, which will not be described in detail here.

[0212] This utility model also proposes a cleaning device. Specifically, the cleaning device can be a vacuum cleaner, sweeper, floor scrubber, mite remover, fabric cleaner, carpet cleaner, pet hair cleaner, handheld multi-functional cleaner, etc. The cleaning device includes a cleaning head 100. The specific structure of the cleaning head 100 is as described in the above embodiments. Since this cleaning device adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0213] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A cleaning head (100) characterized by, include: The housing (1) has a cavity (1a) and an inlet (1b) and an outlet (1c) communicating with the cavity (1a); The first cleaning component (2) is rotatably mounted in the cavity (1a); The second cleaning component (3) is located behind the first cleaning component (2) in the forward direction of the cleaning head (100). The first cleaning component (2) and the second cleaning component (3) are at least partially in contact with each other. At the position where the first cleaning component (2) and the second cleaning component (3) are in contact with each other, the first cleaning component (2) and the second cleaning component (3) are arranged in relative motion. The first cleaning component (2) is cleaned of dirt by the second cleaning component (3) during its rotation stroke.

2. The cleaning head (100) of claim 1, characterized in that The second cleaning component (3) is rotatably mounted on the cavity (1a) about its axis, and the tangential movement directions are opposite where the first cleaning component (2) and the second cleaning component (3) come into contact with each other.

3. The cleaning head (100) of claim 1, wherein, The second cleaning component (3) is rotatably mounted on the cavity (1a) about its axis, and the second cleaning component (3) is provided with a cutting structure (4) for cutting hair wrapped around the second cleaning component (3).

4. The cleaning head (100) of claim 3, characterized in that The cutting structure (4) is located inside the outer circumference of the second cleaning component (3) and does not protrude outward from the outer contour of the second cleaning component (3).

5. The cleaning head (100) according to claim 3 or 4, characterized in that The cutting structure (4) includes two interacting cutting portions (41), each of which extends along the axial direction of the second cleaning member (3). The two cutting portions (41) are movably disposed relative to each other in the axial direction and / or radial direction of the second cleaning member (3) to cut hair wrapped around the second cleaning member (3).

6. The cleaning head (100) of claim 5, characterized in that A first transmission mechanism (5) is provided between the second cleaning component (3) and the two cutting parts (41). The first transmission mechanism (5) is used to convert the rotation stroke of the second cleaning component (3) into the shearing stroke of the two cutting parts (41) moving relative to each other.

7. The cleaning head (100) of claim 6, characterized in that The second cleaning component (3) includes a base (32) and bristles (31) mounted on the periphery of the base (32). A cutting portion (41) is fixedly mounted on the base (32) and is provided to protrude outward from the surface of the base (32) at least partially. The first transmission mechanism (5) includes a slider (51) which is movably disposed relative to the base (32) along the axial direction and / or radial direction of the second cleaning member (3). Another cutting part (41) is fixedly mounted on the slider (51) and is disposed at least partially protruding outward from the surface of the base (32).

8. The cleaning head (100) of claim 7, characterized in that One of the sliding member (51) and the second cleaning member (3) is provided with a guide groove (51a), and the other is provided with a guide portion (61) that cooperates with the guide groove (51a). The second cleaning member (3) rotates so that the guide portion (61) and the guide groove (51a) drive the sliding member (51) to move relative to the base (32). The movement of the sliding member (51) causes the two cutting portions (41) to generate a relative moving shear stroke.

9. The cleaning head (100) of claim 8, characterized in that The extension direction of the guide groove (51a) is inclined to intersect the axial direction of the second cleaning member (3), and the guide portion (61) extends radially along the second cleaning member (3) and passes through the guide groove (51a).

10. The cleaning head (100) of claim 8, wherein, The first transmission mechanism (5) also includes: A mounting shaft (6) extends along the axial direction of the second cleaning component (3), one end of the mounting shaft (6) is fixedly connected to the housing (1), and a guide portion (61) extends outward from the side of the mounting shaft (6); and, The bearing (7) is sleeved on the periphery of the other end of the mounting shaft (6); The base (32) is connected to the periphery of the bearing (7) so that when the base (32) is able to rotate relative to the mounting shaft (6), the guide (61) and the guide groove (51a) drive the sliding member (51) to move relative to the base (32).

11. The cleaning head (100) of claim 5, wherein, Each of the cutting portions (41) includes a blade that extends continuously along the axial direction of the second cleaning member (3) and does not protrude from the axial end face of the second cleaning member (3), or each of the cutting portions (41) includes a plurality of blades spaced apart in the axial direction of the second cleaning member (3).

12. The cleaning head (100) of claim 3 or 4, characterized in that The second cleaning component (3) includes a base (32) and bristles (31) mounted on the periphery of the base (32). The cutting structure (4) is mounted on the base (32) and protrudes outward from the base (32) along the radial direction of the second cleaning component (3). The maximum radial distance between the cutting structure (4) and the central axis of the base (32) is d1, and the maximum radial distance between the bristles (31) and the central axis of the base (32) is d2, where d2 > d1.

13. The cleaning head (100) of claim 12, characterized in that 1mm≤d2-d1≤3mm.

14. The cleaning head (100) of claim 13, characterized in that 1.5mm≤d2-d1≤2mm.

15. The cleaning head (100) of claim 1, wherein, The outer diameter of the cross section of the second cleaning component (3) is set to be smaller than the outer diameter of the cross section of the first cleaning component (2).

16. The cleaning head (100) of claim 1, wherein, The hardness of the material on the surface of the second cleaning component (3) is set to be greater than the hardness of the material on the surface of the first cleaning component (2).

17. The cleaning head (100) of claim 16, characterized in that The second cleaning component (3) includes at least a hard-bristled brush, a soft rubber component, or soft bristles, while the first cleaning component (2) is a soft bristle brush with soft bristles.

18. The cleaning head (100) of claim 1, wherein, The cleaning head (100) also includes a first drive motor (8) for driving the second cleaning component (3) to rotate and a second drive motor (10) for driving the first cleaning component (2) to rotate. The first drive motor (8) and the second drive motor (10) are both located behind the first cleaning component (2) and are arranged sequentially along the axial direction of the second cleaning component (3).

19. The cleaning head (100) of claim 1, wherein, The angular velocity of the second cleaning component (3) is set to be less than the angular velocity of the first cleaning component (2).

20. The cleaning head (100) of claim 1, wherein, The inlet (1b) and the outlet (1c) are arranged at an upward interval in front and behind the housing (1). The first cleaning component (2) is arranged corresponding to the inlet (1b), and the second cleaning component (3) is arranged close to the outlet (1c). The second cleaning component (3) is located behind the first cleaning component (2) and above the axis of the outlet (1c).

21. A cleaning head (100) characterized by, include: The housing (1) has a cavity (1a) and an inlet (1b) and an outlet (1c) communicating with the cavity (1a); A first cleaning component (2) is rotatably mounted to the housing (1) about a first direction; and, The second cleaning component (3) has a cross-sectional diameter smaller than that of the first cleaning component (2). The second cleaning component (3) moves in the same direction as the first cleaning component (2). In the forward direction of the cleaning head (100), the second cleaning component (3) is located above and behind the first cleaning component (2) and is at least partially in contact with the first cleaning component (2). It is used to clean the dirt on the first cleaning component (2) during the rotation stroke of the second cleaning component (3). A drive assembly, located in the housing (1), is used to drive the first cleaning component (2) and / or the second cleaning component (3) to rotate.

22. The cleaning head (100) of claim 21, characterized in that The second cleaning component (3) is provided with a cutting structure (4) for cutting hair wrapped around the second cleaning component (3).

23. The cleaning head (100) of claim 22, characterized in that The cutting structure (4) includes two mutually movable cutting parts (41), and the cleaning head (100) includes a first transmission mechanism (5), which is used to convert the rotational stroke of the second cleaning component (3) into a shearing stroke of the two cutting parts (41) moving relative to each other.

24. The cleaning head (100) of claim 23, characterized in that The second cleaning component (3) includes a base (32) and bristles (31) installed around the base (32), and a cutting part (41) is fixedly installed on the base (32); The first transmission mechanism (5) includes a slider (51) which is movably disposed relative to the base (32) along the axial direction and / or radial direction of the second cleaning member (3), and another cutting part (41) is fixedly mounted on the slider (51).

25. The cleaning head (100) of claim 24, characterized in that One of the sliding member (51) and the second cleaning member (3) is provided with a guide groove (51a), and the other is provided with a guide portion (61) that cooperates with the guide groove (51a). The second cleaning member (3) rotates so that the guide portion (61) and the guide groove (51a) drive the sliding member (51) to move relative to the base (32). The movement of the sliding member (51) causes the two cutting portions (41) to generate a relative moving shear stroke.

26. The cleaning head (100) of claim 25, characterized in that The extension direction of the guide groove (51a) is inclined to intersect the axial direction of the second cleaning member (3), and the guide portion (61) extends radially along the second cleaning member (3) and passes through the guide groove (51a).

27. The cleaning head (100) of claim 22, wherein, The second cleaning component (3) includes a base (32) and bristles (31) mounted on the periphery of the base (32). The cutting structure (4) is mounted on the base (32) and protrudes outward from the base (32) along the radial direction of the second cleaning component (3). The maximum radial distance between the cutting structure (4) and the central axis of the base (32) is d1, and the maximum radial distance between the bristles (31) and the central axis of the base (32) is d2, where d2 > d1.

28. The cleaning head (100) of claim 27, wherein, 1mm≤d2-d1≤3mm.

29. The cleaning head (100) of claim 21, wherein, The drive assembly includes a first drive motor (8) for driving the second cleaning component (3) to rotate and a second drive motor (10) for driving the first cleaning component (2) to rotate. The first drive motor (8) is located above the second cleaning component (3) or behind the first cleaning component (2), and the second drive motor (10) is located inside the first cleaning component (2) or behind the first cleaning component (2).

30. The cleaning head (100) of claim 21, wherein, The angular velocity of the second cleaning component (3) is set to be less than the angular velocity of the first cleaning component (2).

31. A cleaning head (100) characterized by, include: The housing (1) has a cavity (1a) with an opening facing the object being cleaned; as well as, The first cleaning component (2) is configured as a main cleaning brush for cleaning the surface to be cleaned and is a surface cleaning component with a first hardness. The second cleaning component (3) is configured as an auxiliary cleaning brush for contacting the first cleaning component (2) to clean the first cleaning component (2). The first cleaning component (2) and the second cleaning component (3) are configured to have at least some differences in material, hardness or density.

32. The cleaning head (100) of claim 31, wherein, The second cleaning component (3) includes at least a hard-bristled brush, a soft rubber component, or soft bristles, while the surface cleaning component of the first cleaning component (2) is a soft bristle brush with soft bristles.

33. The cleaning head (100) of claim 31, wherein, The first cleaning component (2) and the second cleaning component (3) have a contact position, and the tangential movement directions of the contact position are opposite.

34. The cleaning head (100) of claim 31 or 33, characterized in that, The second cleaning component (3) is provided with a cutting structure (4) for cutting hair wrapped around the second cleaning component (3).

35. A cleaning head (100) characterized by, include: Shell (1); The first cleaning component (2) is rotatably disposed within the housing (1); as well as, The second cleaning component (3) is in contact with the first cleaning component (2) and is used to clean or collect dirt on the first cleaning component (2); The relative rotational speed of the first cleaning component (2) and the second cleaning component (3) at the contact point is set as the sum of the absolute values ​​of the linear velocities of the first cleaning component (2) and the second cleaning component (3).

36. The cleaning head (100) of claim 35, wherein, The second cleaning component (3) is rotatably disposed within the housing (1); The first cleaning component (2) has the opposite tangential direction to the second cleaning component (3).

37. The cleaning head (100) of claim 36, wherein, The angular velocity of the second cleaning component (3) is set to be less than the angular velocity of the first cleaning component (2).

38. The cleaning head (100) of claim 36, wherein, The cleaning head (100) also includes a first drive motor (8) for driving the second cleaning component (3) to rotate and a second drive motor (10) for driving the first cleaning component (2) to rotate. The first drive motor (8) and the second drive motor (10) are both located behind the first cleaning component (2) and are arranged sequentially along the axial direction of the second cleaning component (3).

39. The cleaning head (100) of claim 35, wherein, The second cleaning component (3) is provided with a cutting structure (4) for cutting hair wrapped around the second cleaning component (3).

40. The cleaning head (100) of claim 39, wherein, The cutting structure (4) includes two interacting cutting portions (41), each of which extends along the axial direction of the second cleaning member (3). The two cutting portions (41) are movably disposed relative to each other in the axial direction and / or radial direction of the second cleaning member (3) to cut hair wrapped around the second cleaning member (3).

41. A cleaning apparatus, characterized by Includes the cleaning head (100) as described in any one of claims 1 to 40.

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