Cleaning device

Abstract

The utility model provides cleaning equipment, and relates to the technical field of cleaning products. The cleaning equipment comprises a shell and a rolling brush assembly. The shell is provided with a rolling brush cavity and a dust collection air duct, the side, facing the shell, of the rolling brush cavity is provided with an opening, and the dust collection air duct is provided with an air suction opening communicating with the rolling brush cavity; the rolling brush assembly is rotationally arranged in the rolling brush cavity, and the rolling brush assembly is configured to be exposed out of the opening so as to make contact with the to-be-cleaned face. Vent holes are formed in the cavity wall of the rolling brush cavity; the air suction opening is configured to suck air flow from the opening and the ventilation hole, the whole machine air flow path of the cleaning equipment is improved, hair fibers rolled up by the rolling brush can be rapidly sucked into the cleaning equipment in time, the hair fibers are prevented from being wound on the rolling brush, and the cleaning effect is improved.

Description

Technical Field

[0001] This application relates to the field of cleaning product technology, and more particularly to a cleaning device. Background Technology

[0002] Cleaning devices such as mite removers, vacuum cleaners, and robotic vacuum cleaners are commonly used in households. Vacuum cleaners and robotic vacuum cleaners can clean floors, while mite removers can remove dust and worms from surfaces such as mattresses and leather.

[0003] In related technologies, cleaning equipment typically includes a housing and a fan unit installed inside the housing. The airflow generated by the fan unit creates suction at the air inlet of the housing. A roller brush can be installed at the position corresponding to the air inlet. The roller brush rolls on the surface to be cleaned, picking up dust and hair, and the suction from the air inlet draws the dust and hair into the equipment, thus achieving the cleaning function.

[0004] However, current cleaning equipment often results in hair fibers getting tangled on the roller brush during the cleaning process, leading to poor cleaning effectiveness. Utility Model Content

[0005] This application provides a roller brush assembly and a cleaning device to solve the technical problem that hair fibers easily get tangled on the roller brush during the cleaning process, resulting in poor cleaning effect in current cleaning devices.

[0006] This application provides a cleaning device, which includes a housing and a roller brush assembly; the housing has a roller brush cavity and a suction duct, the roller brush cavity has an opening on one side facing the housing, and the suction duct has a suction port communicating with the roller brush cavity; the roller brush assembly is rotatably disposed in the roller brush cavity, and the roller brush assembly is configured to protrude from the opening to contact the surface to be cleaned.

[0007] The wall of the roller brush chamber is provided with ventilation holes; the air inlet is configured to draw in airflow from the opening and the ventilation holes respectively.

[0008] The cleaning device provided in this application creates ventilation holes in the wall of the roller brush chamber, thus forming an additional airflow path in addition to the opening of the roller brush chamber. When the roller brush assembly rotates to clean the surface to be cleaned, the negative pressure airflow generated by the suction port of the cleaning device can enter the roller brush chamber through the ventilation holes, increasing the airflow rate into the cleaning device and improving the overall airflow path of the cleaning device. This allows the hair fibers rolled up by the roller brush to be quickly and promptly drawn into the cleaning device, preventing them from getting tangled on the roller brush and improving the cleaning effect.

[0009] As an optional implementation, a first airflow passage is formed between the opening and the air intake; the ventilation hole is connected to the air intake through the roller brush cavity to form a second airflow passage.

[0010] This setup creates two airflow paths. Under the negative pressure of the suction port, airflow is generated separately and enters the roller brush chamber, converging at the suction port, making it easier to draw the fibers and hair carried by the roller brush into the suction port.

[0011] As an optional implementation, the air intake is located on the rear side of the roller brush cavity along the cleaning direction of the cleaning device, and the opening faces the lower part of the housing; in the roller brush cavity, the ventilation hole is located on the side of the roller brush assembly opposite to the opening.

[0012] The airflow entering the air intake through the ventilation hole forms an angle with the airflow entering the air intake through the opening.

[0013] With this configuration, airflow passes over the surface of the roller brush assembly from different directions and positions, making it easier to remove the hair that is rolled up on the surface of the roller brush assembly through the airflow.

[0014] As an alternative implementation, the ventilation holes extend along the axial direction of the roller brush assembly.

[0015] This configuration increases the coverage area of ​​the ventilation holes along the length of the brush chamber, thereby improving air intake efficiency.

[0016] As an optional implementation, there are multiple ventilation holes, and at least some of the ventilation holes are spaced apart along the length of the brush cavity.

[0017] This design disperses the airflow entering the brush chamber from the wall, reducing airflow noise.

[0018] As an optional implementation, along the rotational circumference of the roller brush assembly, the cavity wall of the roller brush chamber has multiple ventilation zones, each of which is provided with a ventilation hole.

[0019] This setting can increase air intake efficiency.

[0020] As an optional implementation, the ventilation area of ​​the ventilation holes in different ventilation zones is different.

[0021] This design prevents the airflow entering the brush chamber from circulating in one direction, which helps to disperse the hair rolled up by the brush assembly and prevents hair fibers from getting tangled on the brush assembly.

[0022] As an optional implementation, the ventilation zone includes a first ventilation zone, a second ventilation zone, and a third ventilation zone. The first ventilation zone is located on the side of the roller brush cavity away from the air inlet, the second ventilation zone is located at the top of the roller brush cavity, and the third ventilation zone is located on the same side of the roller brush cavity as the air inlet.

[0023] With this design, airflow can flow through ventilation holes in the front, middle and rear areas of the roller brush chamber, preventing the hair fibers rolled up by the roller brush assembly from getting tangled.

[0024] As an optional implementation, the first ventilation zone is provided with a plurality of ventilation holes, which are distributed on both sides of the centerline of the housing.

[0025] The second ventilation zone is provided with a plurality of ventilation holes, which are arranged at intervals from one end to the other end along the length of the roller brush cavity.

[0026] The third ventilation zone is provided with a plurality of ventilation holes, which are distributed on both sides of the air intake.

[0027] This design avoids airflow interruptions and swirls between different ventilation zones, thus improving the smoothness of airflow.

[0028] As an optional implementation, the ventilation area of ​​the ventilation hole is S1, and the cavity wall area of ​​the roller brush cavity is S2, wherein 1%≤S1 / S2≤50%.

[0029] This design keeps the area of ​​the ventilation holes within a reasonable range, improving air intake efficiency while avoiding insufficient suction at the air intake.

[0030] As an optional implementation, the ventilation area of ​​the ventilation hole is smaller than the ventilation area of ​​the air intake.

[0031] This setup ensures that the air intake has sufficient suction power to draw in dust particles and hair fibers.

[0032] As an optional implementation, the housing includes a first housing and a second housing, the first housing being connected to the second housing, the brush cavity being formed on the side of the second housing opposite to the first housing, and the opening facing the direction of the second housing opposite to the first housing; the ventilation hole communicating the brush cavity with the area between the first housing and the second housing.

[0033] This design separates the path of airflow drawn in through the vent holes from the path of airflow drawn in through the opening of the brush chamber, making it easier for the airflow entering the brush chamber to break up the hair fibers.

[0034] This application provides a cleaning device including a housing and a roller brush assembly. The housing has a roller brush chamber and a suction duct. The roller brush chamber is open on one side facing the housing, and the suction duct has a suction port communicating with the roller brush chamber. The roller brush assembly is rotatably disposed in the roller brush chamber and is configured to protrude from the opening to contact the surface to be cleaned. The cavity wall of the roller brush chamber has ventilation holes. The suction port is configured to draw airflow from the opening and the ventilation holes respectively, improving the overall airflow path of the cleaning device. This allows hair fibers rolled up by the roller brush to be quickly and promptly drawn into the cleaning device, preventing them from getting tangled on the roller brush and improving the cleaning effect.

[0035] In addition to the technical problems solved by the embodiments of this application, the technical features constituting the technical solutions, and the beneficial effects brought about by the technical features of these technical solutions described above, other technical problems that the cleaning equipment provided by this application can solve, other technical features included in the technical solutions, and the beneficial effects brought about by these technical features will be further described in detail in the specific embodiments. Attached Figure Description

[0036] To more clearly illustrate the technical solutions in the embodiments of this application 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 some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0037] Figure 1 This is a schematic diagram of the structure of the cleaning equipment provided in the embodiments of this application;

[0038] Figure 2 A cross-sectional view of the cleaning equipment provided in the embodiments of this application;

[0039] Figure 3 A schematic diagram showing the distribution of ventilation holes on the housing of the cleaning equipment provided in this application embodiment;

[0040] Figure 4 A top view showing the distribution of ventilation holes on the housing of the cleaning equipment provided in this application embodiment.

[0041] Explanation of reference numerals in the attached figures:

[0042] 10- Cleaning equipment;

[0043] 100 - Housing; 101 - Brush chamber; 101a - Opening; 102 - Suction duct; 102a - Suction port; 103 - Ventilation hole; 103a - First ventilation zone; 103b - Second ventilation zone; 103c - Third ventilation zone; 110 - First housing; 120 - Second housing;

[0044] 200-Roller Brush Assembly. Detailed Implementation

[0045] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, an indirect connection through an intermediate medium, or the internal communication between two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0046] In the description of this application, it should be understood that the terms "upper", "lower", "front", "back", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0047] The terms "first," "second," and "third" (if any) in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a particular order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in orders other than those illustrated or described herein.

[0048] Furthermore, the terms “comprising” and “having”, and any variations thereof, are intended to cover non-exclusive inclusion, such as a process, method, system, product, or maintenance tool that includes a series of steps or units, not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product, or maintenance tool.

[0049] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0050] Cleaning devices such as mite removers, vacuum cleaners, and robotic vacuum cleaners are commonly used in households. Vacuum cleaners and robotic vacuum cleaners can clean floors, while mite removers can remove dust and worms from surfaces such as mattresses and leather. Cleaning devices typically consist of a casing and a fan unit housed within it. The airflow generated by the fan unit creates suction at the air inlet on the casing. A roller brush can be positioned at the air inlet; this brush rolls across the surface being cleaned, picking up dust and hair, which are then drawn into the device by the suction, thus achieving the cleaning function.

[0051] However, when cleaning soft surfaces such as bedding, clothes, and sofas, current cleaning equipment often results in concave surfaces where hair fibers tend to adhere. Furthermore, the rolled-up hair fibers can easily become entangled on the roller brush and are difficult to suck into the cleaning equipment. As a result, even with repeated cleaning and the roller brush rolling back and forth, it is still difficult to remove all the hair fibers, leading to poor cleaning results.

[0052] To address the aforementioned technical problems, this application provides a cleaning device. Through the design of the airflow path structure, ventilation holes are provided within the roller brush chamber. This allows airflow to enter through the opening of the roller brush chamber during cleaning, while another airflow path is formed inside the roller brush chamber. This improves the overall airflow layout of the cleaning device, making it easier for attached hair fibers to be drawn into the cleaning device, preventing hair fibers from becoming entangled on the roller brush, and resulting in a better cleaning effect.

[0053] The following is an example illustrating the application scenarios of the cleaning equipment provided in the embodiments of this application.

[0054] The cleaning equipment provided in this application embodiment is a cleaning tool with a roller brush structure. Specifically, the product type of the cleaning equipment in this application embodiment may include, but is not limited to, mite removers, vacuum cleaners, sweeping machines, and robotic vacuum cleaners. Depending on the product type, the cleaning equipment provided in this application embodiment can be used for carpets, bed sheets and quilts, sofas, clothing, etc. This application embodiment does not make specific limitations in this regard.

[0055] Figure 1 This is a schematic diagram of the structure of the cleaning equipment provided in the embodiments of this application; Figure 2 A cross-sectional view of the cleaning equipment provided in the embodiments of this application; Figure 3 A schematic diagram showing the distribution of ventilation holes on the housing of the cleaning equipment provided in this application embodiment; Figure 4 A top view showing the distribution of ventilation holes on the housing of the cleaning equipment provided in this application embodiment.

[0056] See Figures 1 to 4As shown, this application embodiment provides a cleaning device 10, which includes a housing 100 and a roller brush assembly 200. The housing 100 has a roller brush cavity 101, which has an opening 101a facing one side of the housing 100. The roller brush assembly 200 is rotatably disposed in the roller brush cavity 101, and is configured to protrude from the opening 101a to contact the surface to be cleaned, thereby achieving the cleaning function.

[0057] In the cleaning device 10 provided in this application, the housing 100 has a dust suction duct 102, and the dust suction duct 102 has a suction port 102a that communicates with the roller brush chamber 101. When the cleaning device 10 performs the cleaning function, airflow can be drawn in through the dust suction duct 102, causing the suction port 102a to generate negative pressure suction, thereby allowing dust particles and hair fibers carried by the roller brush assembly 200 to be sucked into the suction port 102a.

[0058] In some embodiments, the cavity wall of the roller brush chamber 101 is provided with ventilation holes 103. The air intake 102a can draw in airflow from the opening 101a and the ventilation holes 103 respectively, that is, in addition to the opening 101a of the roller brush chamber 101, the ventilation holes 103 form another air intake path.

[0059] Understandably, the ventilation hole 103 penetrates the cavity wall of the roller brush chamber 101, connecting the inside and outside of the roller brush chamber 101. Under the negative pressure suction of the suction port 102a, external airflow can enter the roller brush chamber 101 through the ventilation hole 103, and guided by the cavity wall of the roller brush chamber 101, it flows along the cavity wall to the suction port 102a. During this process, the airflow flows between the roller brush assembly 200 and the cavity wall of the roller brush chamber 101, and the airflow blows the dust particles and hair fibers carried and attached by the roller brush assembly 200 into the suction port 102a, thereby being sucked into the cleaning device 10 through the dust suction duct 102.

[0060] It should be noted that in the cleaning device 10 provided in this application embodiment, the opening 101a of the roller brush chamber 101 and the ventilation hole 103 on its chamber wall can form two independent air intake paths, thereby increasing the additional airflow path when the cleaning device 10 performs the cleaning function. The airflow entering the roller brush chamber 101 from the opening 101a and the ventilation hole 103 will converge at the suction port 102a and enter the dust suction duct 102 together.

[0061] During the cleaning process, the roller brush assembly 200 contacts the surface to be cleaned through the opening 101a, rubbing and tapping the surface to pick up dust particles and hair fibers. Meanwhile, the airflow generated by the suction port 102a can enter the roller brush chamber 101 through the opening 101a along the roller brush assembly 200, drawing dust and hair into the suction duct 102. Simultaneously, the negative pressure airflow generated by the suction port 102a of the cleaning device 10 can also enter the roller brush chamber 101 through the ventilation hole 103, increasing the airflow rate into the cleaning device 10 and improving the overall airflow path. This allows the hair fibers picked up by the roller brush to be quickly and promptly drawn into the cleaning device 10, preventing them from becoming tangled on the roller brush and improving the cleaning effect.

[0062] The following section will first provide a detailed explanation of the airflow paths formed by the ventilation holes 103 and the openings 101a during the vacuuming process.

[0063] Please continue to refer to Figures 1 to 4 In one possible implementation, a first airflow passage is formed between the opening 101a and the suction port 102a. The ventilation hole 103 is connected to the suction port 102a via the brush chamber 101, forming a second airflow passage. The air intake paths of the first and second airflow passages are independent, but they converge when air flows from the brush chamber 101 into the suction port 102a.

[0064] It is understandable that the roller brush chamber 101 is an open structure, forming an opening 101a for the roller brush assembly 200 to contact the surface to be cleaned. Dust and hair are mainly picked up by the roller brush assembly 200 at the opening 101a and drawn into the roller brush chamber 101 by the negative pressure airflow, i.e., the first airflow passage.

[0065] In addition, the second airflow passage formed by the ventilation hole 103 plays a role in assisting cleaning and preventing tangling. The first airflow passage and the second airflow passage work together. With the continuous negative pressure of the suction port 102a, the opening 101a and the ventilation hole 103 generate airflow that enters the roller brush cavity 101 and converges at the suction port 102a, making it easier to suck the fibers and hairs carried by the roller brush into the suction port 102a and prevent the hairs from being confined and tangled on the roller brush assembly 200.

[0066] In some embodiments, the air intake 102a is located on the rear side of the roller brush chamber 101 along the cleaning direction of the cleaning device 10, with the opening 101a facing downwards from the housing 100. In the roller brush chamber 101, the ventilation hole 103 is located on the side of the roller brush away from the opening 101a. This ensures that the airflow paths into the roller brush chamber 101 are different for the opening 101a and the ventilation hole 103, preventing airflow short-circuiting between the opening 101a and the ventilation hole and guaranteeing smooth airflow.

[0067] The airflow entering the suction port 102a through the ventilation hole 103 forms an angle with the airflow entering the suction port 102a through the opening 101a. In this way, the airflow flows over the surface of the roller brush assembly 200 from different directions and positions, making it easier to carry away the hair rolled up on the surface of the roller brush assembly 200, and preventing the hair from being trapped and attached to the surface of the roller brush assembly 200 and becoming more and more tangled as the roller brush rotates.

[0068] It is understood that the cleaning direction of the cleaning device 10 is defined as the X direction, for example, the X direction is the front-to-back cleaning direction, and the cleaning device 10 can move back and forth to perform cleaning. The air intake 102a is located on the rear side of the roller brush chamber 101, the opening 101a of the roller brush chamber 101 is arranged facing the bottom side of the cleaning device 10, and the ventilation hole 103 can be arranged on or near the top side of the roller brush chamber 101.

[0069] When the cleaning device 10 performs the cleaning function, the suction port 102a generates negative pressure suction. The airflow entering from the opening 101a can flow over the lower surface of the roller brush assembly 200 and flow backward and upward in the X direction, and enter the suction port 102a; the airflow entering from the ventilation hole 103 can flow over the upper surface of the roller brush assembly 200 and flow backward and downward in the X direction, and enter the suction port 102a.

[0070] For example, the first airflow path and the second airflow path converge at the air intake 102a. The direction of the airflow entering the air intake 102a through the ventilation hole 103 refers to the direction of the airflow in the second airflow path when entering the air intake 102a; the direction of the airflow entering the air intake 102a through the opening 101a refers to the direction of the airflow in the first airflow path when entering the air intake 102a. The specific value of the angle between the airflow entering the air intake 102a through the ventilation hole 103 and the airflow entering the air intake 102a through the opening 101a can be 5°, 10°, 30°, 45°, 60°, 90°, 120°, 150°, 175°, etc., and this embodiment does not specifically limit this.

[0071] For example, the shape of the ventilation hole 103 can be square, rectangular, round, elliptical, or other polygonal structures. This application embodiment does not limit the specific shape of the ventilation hole 103.

[0072] In some embodiments, the ventilation hole 103 extends along the axial direction of the roller brush assembly 200, thereby increasing the coverage area of ​​the ventilation hole 103 in the length direction of the roller brush cavity 101 and improving the air intake efficiency.

[0073] For example, there may be multiple ventilation holes 103, and at least some of the ventilation holes 103 are distributed at intervals along the length of the brush cavity 101, so as to disperse the airflow entering the interior of the brush cavity 101 from the cavity wall and reduce airflow noise.

[0074] It should be noted that the axial length of the roller brush assembly 200 matches the length of the roller brush cavity 101. During the cleaning process of the roller brush assembly 200 rotating, hair fibers may be picked up at different positions along the length of the roller brush assembly 200. Therefore, ventilation holes 103 are provided at different positions along the length of the roller brush cavity 101 to ensure that the hair picked up at different positions along the length of the roller brush assembly 200 can be blown into the suction port 102a with the assistance of the airflow in the second airflow passage, thus avoiding the hair fibers from getting tangled on the roller brush assembly 200.

[0075] In one possible implementation, along the circumferential rotation of the roller brush assembly 200, the cavity wall of the roller brush chamber 101 has multiple ventilation zones, each with a ventilation hole 103. Under the negative pressure suction of the air inlet 102a, air enters from multiple ventilation zones simultaneously, which can increase the air intake efficiency.

[0076] It is understandable that the rotation axis of the roller brush assembly 200 can be perpendicular to the X direction, and multiple ventilation chambers are distributed along the rotation circumference of the roller brush assembly 200. It can be understood that multiple ventilation zones can be distributed from front to back along the X direction on the top wall of the roller brush cavity 101.

[0077] In addition, each ventilation zone can be further subdivided into sub-ventilation zones arranged along the length of the brush cavity 101, depending on the number of ventilation holes 103 provided.

[0078] For example, the number of ventilation zones can be two, three, four or more, and this application embodiment does not specifically limit this.

[0079] In some embodiments, the ventilation area of ​​the ventilation holes 103 in different ventilation zones is different. This prevents the airflow entering the roller brush chamber 101 from circulating in one direction, which helps to disperse the hair rolled up by the roller brush assembly 200 and prevents hair fibers from getting tangled on the roller brush assembly 200.

[0080] The air intake path of ventilation hole 103 will be explained in detail below through examples of three ventilation zones.

[0081] Please continue to refer to Figures 1 to 4 In some embodiments, the ventilation zone may include a first ventilation zone 103a, a second ventilation zone 103b, and a third ventilation zone 103c. The first ventilation zone 103a is located on the side of the roller brush cavity 101 away from the air intake 102a, the second ventilation zone 103b is located at the top of the roller brush cavity 101, and the third ventilation zone 103c is located on the same side of the roller brush cavity 101 as the air intake 102a.

[0082] It is understandable that the first ventilation zone 103a, the second ventilation zone 103b and the third ventilation zone 103c are distributed sequentially from front to back along the X direction on and near the top wall of the roller brush cavity 101, so that airflow can flow through the ventilation holes 103 in the front, middle and rear areas of the roller brush cavity 101, preventing the hair fibers rolled up by the roller brush assembly 200 from getting tangled.

[0083] In this embodiment, the first ventilation zone 103a, the second ventilation zone 103b, and the third ventilation zone 103c can each be provided with different numbers of ventilation holes 103, resulting in differences in the ventilation area of ​​the ventilation holes 103 in each zone. The ventilation area referred to here is the sum of the areas of the ventilation holes 103 in that zone.

[0084] In some embodiments, the first ventilation zone 103a is provided with a plurality of ventilation holes 103, which are distributed on both sides of the center line of the housing 100.

[0085] The centerline of the housing 100 is parallel to the X direction. For example, two ventilation holes 103 can be provided on each side of the centerline of the housing 100.

[0086] In some embodiments, the second ventilation zone 103b is provided with a plurality of ventilation holes 103, which are arranged at intervals from one end to the other end along the length direction of the roller brush cavity 101.

[0087] It is understandable that the contour shape of the brush cavity 101 can match the outer contour shape formed by the rotation of the brush assembly 200. The cavity wall of the brush cavity 101 can be arc-shaped, and the second ventilation zone 103b is located at the top of the circular cavity wall.

[0088] For example, the number of ventilation holes 103 and the ventilation area of ​​the second ventilation zone 103b are greater than those of the first ventilation zone 103a and the third ventilation zone 103c.

[0089] In some embodiments, the third ventilation zone 103c is provided with a plurality of ventilation holes 103, which are distributed on both sides of the air intake 102a, thereby avoiding airflow interruption and swirling between different ventilation zones and improving the smoothness of airflow.

[0090] In this embodiment, the ventilation area of ​​the ventilation hole 103 is S1, and the cavity wall area of ​​the roller brush cavity 101 is S2, wherein 1%≤S1 / S2≤50%. By controlling the area of ​​the ventilation hole 103 within a reasonable range, the air intake efficiency is improved while avoiding the problem of insufficient suction power of the air intake 102a.

[0091] For example, the ratio of the ventilation area of ​​the ventilation hole 103 to the cavity wall of the roller brush cavity 101 can be 1%, 2%, 5%, 10%, 30%, 40%, 49%, 50%, etc., and this application embodiment does not specifically limit it.

[0092] In some embodiments, the ventilation area of ​​the ventilation hole 103 is smaller than the ventilation area of ​​the air intake 102a, so that the air intake 102a can have sufficient suction to draw in dust particles and hair fibers.

[0093] Understandably, the size of the suction port 102a is larger than that of the ventilation hole 103. The airflow entering the roller brush chamber 101 from the ventilation hole 103 plays an auxiliary cleaning role, preventing hair carried by the roller brush assembly 200 from adhering and tangling. The airflow rate entering from the ventilation hole 103 is less than the airflow rate entering from the opening 101a. The airflows entering the roller brush chamber 101 from the ventilation hole 103 and the opening 101a respectively will converge at the suction port 102a and enter the dust collection duct 102 together.

[0094] For example, with reference to the roller brush assembly 200, the air intake 102a is located on the rear side of the roller brush cavity 101 along the X direction, opposite to the middle position of the roller brush assembly 200. The airflow entering the roller brush cavity 101 through the ventilation holes 103 at different positions along the length of the roller brush cavity 101 can converge towards the rear middle of the roller brush cavity 101.

[0095] The structure of the housing 100 is described below.

[0096] In some embodiments, the housing 100 includes a first housing 110 and a second housing 120, the first housing 110 being connected to the second housing 120, the brush cavity 101 being formed on the side of the second housing 120 away from the first housing 110, and the opening 101a facing the direction of the second housing 120 away from the first housing 110.

[0097] It is understood that the ventilation hole 103 connects the area between the brush cavity 101 and the first housing 110 and the second housing 120, thereby distinguishing the path of airflow drawn in by the ventilation hole 103 from the path of airflow drawn in by the opening 101a of the brush cavity 101, making it easier for the airflow entering the brush cavity 101 to break up the hair fibers.

[0098] For example, the first housing 110 is located above the second housing 120. The edge contours of the first housing 110 and the second housing 120 match each other. They can be connected by fasteners such as bolts or by welding. The area enclosed between the first housing 110 and the second housing 120 can be used to install components such as a motor (for driving the roller brush assembly 200 to rotate).

[0099] In this embodiment, the roller brush assembly 200 may include a roller and at least one flexible cleaning element, the flexible cleaning element being disposed on the surface of the roller. The roller is rotatably connected to the roller brush cavity 101 of the housing 100, and the roller supports the flexible cleaning element. The flexible cleaning element is elastic; when it contacts the surface to be cleaned, it can be squeezed to generate elastic deformation, thereby increasing the friction between it and the surface to be cleaned. Through friction and patting, the adhering dust and hair are picked up from the surface to be cleaned.

[0100] For example, there can be multiple flexible cleaning elements, which are spaced apart circumferentially along the roller.

[0101] Understandably, during the rotation and cleaning process of the roller brush assembly 200, multiple flexible cleaning components can sequentially contact and pat the surface to be cleaned, so that the roller brush assembly 200 can have a better cleaning effect.

[0102] For example, the flexible cleaning component can be one or a combination of adhesive strips, brushes, etc. For instance, the flexible cleaning component can be an adhesive strip. When an adhesive is used as the flexible cleaning component, the adhesive strip can pat the surface to be cleaned, and hair will not get tangled on the adhesive strip. The hair carried by the adhesive strip is more easily sucked into the interior of the cleaning device 10 along the outer edge of the adhesive.

[0103] This application provides a cleaning device including a housing and a roller brush assembly. The housing has a roller brush chamber and a suction duct. The roller brush chamber is open on one side facing the housing, and the suction duct has a suction port communicating with the roller brush chamber. The roller brush assembly is rotatably disposed in the roller brush chamber and is configured to protrude from the opening to contact the surface to be cleaned. The cavity wall of the roller brush chamber has ventilation holes. The suction port is configured to draw airflow from the opening and the ventilation holes respectively, improving the overall airflow path of the cleaning device. This allows hair fibers rolled up by the roller brush to be quickly and promptly drawn into the cleaning device, preventing them from getting tangled on the roller brush and improving the cleaning effect.

[0104] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A cleaning device, characterized in that, The cleaning device (10) includes a housing (100) and a roller brush assembly (200); the housing (100) has a roller brush cavity (101) and a suction duct (102), the roller brush cavity (101) has an opening (101a) on the side facing the housing (100), and the suction duct (102) has a suction port (102a) communicating with the roller brush cavity (101); the roller brush assembly (200) is rotatably disposed in the roller brush cavity (101), and the roller brush assembly (200) is configured to protrude from the opening (101a) to contact the surface to be cleaned; The wall of the roller brush chamber (101) is provided with ventilation holes (103); the air inlet (102a) is configured to draw in airflow from the opening (101a) and the ventilation holes (103) respectively.

2. The cleaning equipment according to claim 1, characterized in that, A first airflow passage is formed between the opening (101a) and the air inlet (102a); the ventilation hole (103) is connected to the air inlet (102a) through the roller brush cavity (101) and forms a second airflow passage.

3. The cleaning equipment according to claim 1, characterized in that, The air intake (102a) is located on the rear side of the roller brush cavity (101) along the cleaning direction of the cleaning device (10), and the opening (101a) faces the lower part of the housing (100); in the roller brush cavity (101), the ventilation hole (103) is located on the side of the roller brush assembly (200) away from the opening (101a); The airflow entering the air intake (102a) through the ventilation hole (103) has an angle with the airflow entering the air intake (102a) through the opening (101a).

4. The cleaning equipment according to claim 1, characterized in that, The ventilation hole (103) extends along the axial direction of the roller brush assembly (200).

5. The cleaning equipment according to claim 1, characterized in that, There are multiple ventilation holes (103), and at least some of the ventilation holes (103) are distributed at intervals along the length direction of the roller brush cavity (101).

6. The cleaning equipment according to claim 5, characterized in that, Along the rotational circumference of the roller brush assembly (200), the cavity wall of the roller brush cavity (101) has a plurality of ventilation zones, each of which is provided with a ventilation hole (103).

7. The cleaning equipment according to claim 6, characterized in that, The ventilation area of ​​the ventilation holes (103) in different ventilation zones is different.

8. The cleaning equipment according to claim 6, characterized in that, The ventilation zone includes a first ventilation zone (103a), a second ventilation zone (103b), and a third ventilation zone (103c). The first ventilation zone (103a) is located on the side of the roller brush cavity (101) away from the air inlet (102a). The second ventilation zone (103b) is located at the top of the roller brush cavity (101). The third ventilation zone (103c) is located on the same side of the roller brush cavity (101) as the air inlet (102a).

9. The cleaning equipment according to claim 8, characterized in that, The first ventilation zone (103a) is provided with a plurality of ventilation holes (103), which are distributed on both sides of the center line of the housing (100); The second ventilation zone (103b) is provided with a plurality of ventilation holes (103), which are arranged at intervals from one end to the other end along the length of the roller brush cavity (101); The third ventilation zone (103c) is provided with a plurality of ventilation holes (103), which are distributed on both sides of the air intake (102a).

10. The cleaning equipment according to any one of claims 1-9, characterized in that, The ventilation area of ​​the ventilation hole (103) is S1, and the cavity wall area of ​​the roller brush cavity (101) is S2, wherein 1%≤S1 / S2≤50%.

11. The cleaning equipment according to any one of claims 1-9, characterized in that, The ventilation area of ​​the ventilation hole (103) is smaller than the ventilation area of ​​the air intake (102a).

12. The cleaning equipment according to any one of claims 1-9, characterized in that, The housing (100) includes a first housing (110) and a second housing (120), the first housing (110) being connected to the second housing (120), the roller brush cavity (101) being formed on the side of the second housing (120) away from the first housing (110), and the opening (101a) facing the direction of the second housing (120) away from the first housing (110); the ventilation hole (103) communicating the area between the roller brush cavity (101) and the first housing (110) and the second housing (120).

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