Cleaning assembly, rolling brush assembly and cleaning device

Abstract

According to the cleaning assembly, the rolling brush assembly and the cleaning device, a series of comb teeth arranged in the length direction of the assembly are formed on the inner wall face of the cleaning assembly, the comb teeth form a continuous or discontinuous comb tooth set, and when the rolling brush rotates in the assembly state, the comb tooth set interferes with the surface of the rolling brush so as to remove entanglement on the rolling brush, the comb teeth comprise at least one front end portion, the front end portion points to the center point of the rolling brush or points to the center rotating shaft of the rolling brush, the surface of the rolling brush can make more sufficient contact with the tooth portions, a better cleaning effect is obtained, meanwhile, the collision resistance of the rolling brush and the tooth portions is smaller, shaking of the rolling brush in the rolling process is reduced, and dynamic balance of the rolling brush is guaranteed.

Description

Technical Field

[0001] The present disclosure relates to the technical field of cleaning equipment, and more particularly to a cleaning assembly suitable for vacuum cleaning equipment and having a comb tooth group, and a roller brush assembly comprising the cleaning assembly, and also to a cleaning device using the aforementioned cleaning assembly or comprising the aforementioned roller brush assembly. Background Art

[0002] The statements in this section merely provide background information related to the present disclosure and may not constitute prior art.

[0003] A vacuum cleaning device, such as a vacuum cleaner, typically includes a roller brush component that comes into contact with the surface to be cleaned. The roller brush component is driven by a drive unit (e.g., a motor) to produce a rolling stroke on the surface to be cleaned. During this process, the bristles on the surface of the roller brush pick up dust, debris, and the like remaining on the surface to be cleaned. At the same time, the roller brush component is typically located within a receiving chamber at the working end of the device and includes a suction port connected to the receiving chamber, which is connected to a separation unit of the cleaning device. When the vacuum cleaning device is operating, the drive unit draws suction outward through the pump body to establish a negative pressure within the receiving chamber through the aforementioned suction port. Under the action of this negative pressure, the dust and debris picked up by the roller brush are separated from the brush surface and discharged to the separation unit through the suction port along with the dust-laden airflow. Summary of the Invention

[0004] Soft, filamentous dirt like human hair, animal hair, and flocculent hair easily becomes entangled with the bristles of the roller brush. Even under the aforementioned negative pressure, these entangled hairs are difficult to completely separate from the bristle strips, and dirt will always remain on the bristle strips. As the roller brush continues to rotate, these soft, filamentous dirt will gather on the surface of the roller brush to form clumps or clusters. These clumps of hair will exacerbate the entanglement problem in subsequent strokes, causing the existing roller brush's pickup ability to gradually weaken or even disappear with continuous use, resulting in poor cleaning effect and efficiency.

[0005] In view of this, the present disclosure provides a cleaning assembly, a roller brush assembly, and a cleaning device.

[0006] According to the first aspect of the present disclosure, a cleaning component is provided, wherein the inner cavity of the cleaning component defines an accommodating cavity for accommodating a roller brush, the longitudinal direction of the cleaning component is a first direction, and a direction toward the roller brush is a second direction, and a plurality of comb teeth are arranged along the first direction on the inner wall surface of the cleaning component, and the plurality of comb teeth form a continuous or discontinuous comb tooth group structure. The comb tooth group can interfere with the surface of the roller brush when the roller brush rotates to remove entanglements on the roller brush. The comb tooth includes a front end portion for entanglements on the roller brush, and the front end portion is the portion that interferes with the surface of the roller brush, and the configuration direction of the front end portion is to point to the center point of the roller brush or the central rotation axis of the roller brush. When the front end points to the central rotation axis of the roller brush, the teeth of the comb group can remain parallel to each other, and the comb group composed of each comb tooth has a uniform and flat tooth mouth as a whole. Such a tooth mouth can make the force at each contact point between the comb group and the brush body surface uniform, which is beneficial to balancing the rolling stability of the brush body; when the front end points to the center point of the roller brush, each comb tooth will be tilted as a whole or partially, in particular, from both sides to the middle of the comb tooth group, the tooth mouth of the comb teeth will gradually open, which makes the brush body and the front end contact tangentially with each other, and the collision resistance between the two is buffered, and the gradually opened tooth mouth can form a avoidance near the suction port, which can reduce the influence of the comb tooth group on the suction force.

[0007] The comb teeth include at least one first tooth portion extending from the inner wall surface of the component and protruding toward the second direction. According to multiple embodiments in which the comb teeth are arranged in different styles, the front end portion of the comb teeth can be understood as the entirety or a portion of the first tooth portion, that is, the first tooth portion can constitute the front end portion as a whole to interfere with the surface of the brush body, or a portion of the first tooth portion can constitute the front end portion to serve as an interference surface in contact with the brush body. However, in different embodiments, the front end portion includes at least one first end surface in the second direction, and the extension of the first end surface passes through the center point of the roller brush or the central rotation axis of the roller brush. The first end surface is inclined in the second direction. When the inclined first end surface interferes with the surface of the roller brush, the contact between the two can be smoother, reducing the bumps caused by the vibration of the roller brush due to collision between the two, and can also effectively protect the brush body and the bristles on the surface of the brush body.

[0008] The comb teeth in the comb assembly are symmetrical along a first direction about the central axis of the inner wall of the assembly. This "symmetry" can refer to both equal spacing between the comb teeth in the comb assembly and a consistent tendency for the teeth on both sides to gradually open. This symmetrical distribution ensures smooth and continuous contact between the comb assembly and the brush body, and reduces the impact of interference between the two on the dynamic balance of the brush body.

[0009] As a more preferred embodiment of the first aspect of the present disclosure, the comb teeth are configured as straight teeth. The straight teeth are protrusions formed by the first tooth portion protruding from the inner wall surface of the component in the second direction, and the extension of the protrusion from the inner wall surface of the component includes two ends, one end of which extends toward the inner wall surface of the component to form an integral structure with the inner wall surface of the component, and the other end is the front end portion facing the winding object on the roller brush, and at least a part of the surface of the front end portion serves as the first end face that interferes with the winding object. The extension surface of the first end face passes through the central rotation axis of the roller brush, so that the tooth surfaces of the comb teeth are arranged facing each other and parallel to each other along the first direction, so that the first end faces of the comb teeth form a smooth front end portion. When the extension surface of the first end face passes through the center point of the brush body, the tooth surfaces of the comb teeth are inclined relative to the inner wall surface of the component, and the inclination angle of the comb teeth is configured to decrease from both sides to the middle, so that the comb teeth in the comb tooth group gather from both sides to the center in the first direction.

[0010] Furthermore, the front end portion preferably includes a pickup end for tangled objects on the roller brush. The pickup end can be formed, in whole or in part, into a hooked or claw-shaped bend, with the tip end of the bend facing the central rotation axis or center point of the roller brush. Upon contact with the brush surface, the hooked or claw-shaped pickup end can entangle clumps or clusters of hair or flocculent material on the brush body, thereby pulling the tangled objects out from between the bristles.

[0011] Still further preferably, when the extended surface of the first end face passes through the center point of the brush body, the tooth surface of the comb teeth is inclined relative to the inner wall surface of the component, and the inclination angle of the comb teeth is configured to decrease from both sides to the middle, so that the comb teeth in the comb tooth group gather from both sides to the center in the first direction.

[0012] The length of the first teeth gradually decreases as they extend from the side teeth toward the center teeth. Furthermore, the bottom end surface of the first teeth can be configured to follow the edge of the transition flange of the cleaning assembly. This allows the teeth closer to the suction port to have a greater inclination but also have shorter teeth. The greater inclination allows the teeth to partially contact the inclined tooth surface after contacting the first end surface, thereby increasing the contact area and duration between the brush body and the teeth. The shorter teeth also prevent the teeth from interfering with the dust-laden airflow near the suction port.

[0013] As another preferred embodiment of the first aspect of the present disclosure, the comb teeth are configured as beveled teeth with pointed tips. The beveled teeth are formed by the first tooth portion extending along the inner wall surface of the component, including at least one pointed tip. The root portions of the multiple comb teeth are interconnected, and a tooth gap is formed between the tips of adjacent comb teeth. In this embodiment, the head end surface of the pointed tip is also the first end surface for interfering with the surface of the brush body. In the embodiment using bevel teeth, the head end face of the tip of the bevel teeth, the tooth mouth, and the tooth edge constituting the tooth mouth can all be used as part of the front end portion, thereby providing different contact modes for the contact between the comb tooth group and the brush body surface. In this contact mode, the brush body surface will first contact the first end face, and the first end face will extend into the entanglement on the bristle strip, and with the relative rotation of the brush body, the entanglement will be pulled in the direction away from the rotation of the brush body; then, the brush body surface will extend into the tooth mouth along the tooth edge, and in the process of continuous contact with the tooth edge, the sticky impurities attached to the bristle strip will be peeled off, and finally the tooth mouth portion can also provide secondary interference with the brush body surface and the entanglement that interferes with the first end face but has not yet detached, so as to improve the anti-entanglement performance of the comb tooth group.

[0014] The degree of the first angle formed between the tooth openings is in the range of 16 to 26 degrees. A larger first angle can better adapt to large debris, and the force on the bristle strips between the tooth openings is relatively relaxed; a smaller first angle can increase the clamping force of the tooth openings and improve the peeling effect. In one embodiment, the first angle between the comb teeth is the same value within the aforementioned range, so that the tooth openings in the comb tooth group will maintain the same opening, the contact between the comb tooth group and the brush body surface will maintain uniform force, and the rolling of the brush body will have better stability. In another embodiment, the angle of the first angle between each tooth opening can also be set to a different value within the aforementioned range, so as to take into account the advantages of the different angle configurations of the above-mentioned first angle. Under this configuration, in the comb tooth group, the tooth openings of the comb teeth on both sides are relatively closed, while the tooth openings of the middle comb teeth are relatively open, so as to take into account the respective advantages of larger and smaller first angles.

[0015] In this preferred embodiment of the first aspect of the present disclosure, the beveled tooth tip as the front end portion can be further extended to form a picking-up end for the entanglements on the roller brush, and the picking-up end can form a hook-shaped or claw-shaped bend in whole or in part, and the head end face of the bend is the first end face facing the central rotation axis or the center point of the roller brush. The hook-shaped or claw-shaped picking-up end can be hooked and entangled with the hair and flocs that are clumps or clusters on the surface of the brush body when in contact with the surface of the brush body, thereby pulling the entanglements out from between the bristle strips. A better way is to set the hook-shaped part as a straight hook to reduce the situation where the rolling load of the brush body is too high due to the excessive bite force between the bend hook and the entanglements. Similarly, the comb tooth group configured as beveled teeth can also be so that the tooth surface extension length of the bevel teeth decreases in the direction from both sides to the center following the transition flange, and the same technical effect can be achieved.

[0016] At the base of the helical teeth, the minimum spacing between two adjacent comb teeth at the tooth opening is less than or equal to 1 mm. This is because the tooth-root spacing at the junction of two adjacent comb teeth should not be too narrow. Too narrow a spacing would form a relatively sharp tip at the end of the tooth opening, which would continuously scrape the bristles on the brush surface during contact. At the same time, because the entangled material on the brush surface is generally composed of soft debris, hair and other dirt, the tooth-root spacing should not be too wide to prevent the entangled material from deforming at the tooth opening and easily flipping over.

[0017] As another preferred embodiment of the first aspect of the present disclosure, the comb teeth are configured to include continuous or discontinuous stepped teeth consisting of a first tooth portion and a second tooth portion. The second tooth portion is between two adjacent first tooth portions, extending from the top of the first tooth portion on one side to the tooth root of the first tooth portion on the other side, thereby forming a slope-like structure. The first tooth portion and the second tooth portion are further extended in whole or in part to form at least one front end portion on the first tooth portion and / or the second tooth portion, and at least a part of the surface of the front end portion constitutes the front end portion. The front end portion also includes a picking end for the windings on the roller brush, and the picking end forms a bent portion for the windings in whole or in part, and the head end face of the picking end constitutes the first end face.

[0018] In embodiments where the comb teeth are configured as stepped teeth, the entire first and / or second tooth portions, or a portion thereof, may be further extended to form an interference fit between the first and second tooth portions, forming at least one notched front end portion. At least one surface of the notched front end portion forms a first end surface facing the center point or central rotation axis of the roller brush. The notched front end portion can cooperate with the end surface of the first tooth portion and the sloped surface of the second tooth portion to form contact with the brush body surface in different contact modes, which can adapt to dirt of different sizes and materials.

[0019] If the distance between the second tooth portion and the root of the first tooth portion is set too large, the gap position will not form sufficient clamping force, resulting in poor pickup ability. Therefore, as a preferred embodiment of this preferred embodiment, the distance between the second tooth portion and the root of the first tooth portion is set to be less than or equal to 1 mm.

[0020] Furthermore, for a comb tooth group including stepped teeth, the inclination angle of the slope of the second tooth portion of the comb teeth in the direction from both sides to the center shows a gradually increasing trend, so that the comb teeth in the comb tooth group gather from both sides to the center in the first direction. A larger inclination angle can make the slope smoother and expand the contact area between the bristle strip and the winding thereon and the comb teeth. In addition, a more balanced slope can buffer the collision resistance between the bristle strip and the slope, protecting the soft bristle strip from being difficult to restore to a fluffy shape due to excessive deformation. A smaller inclination angle can make the gap between the first tooth portion and the second tooth portion better play its clamping and picking effect. In order to take into account the above two aspects, in this embodiment of the first aspect of the present disclosure, the inclination angle formed by the slope of the second tooth portion relative to the inner wall surface of the component is set within the range of 10 to 20 degrees.

[0021] According to a second aspect of the present disclosure, a roller brush assembly is provided, which includes a connecting base, a roller brush, and the cleaning assembly described in the first aspect of the present disclosure.

[0022] The connecting base is a base structure for securing the cleaning assembly described in the first aspect of the present disclosure. In the assembled state, the connecting base closes the side of the cleaning assembly facing away from the accommodating chamber, while simultaneously exposing the suction port. A roller brush is disposed within the accommodating chamber defined by the cleaning assembly. When the roller brush rotates, the radially outwardly projecting tufts and / or bristle strips on its surface interfere with the comb teeth of the cleaning assembly, thereby removing entangled material from the roller brush.

[0023] The cleaning assembly includes a base extending in the length direction and adapted to dock with the connection base, a shell extending in the height direction and configured to conform to the outer shape of the roller brush, and a cover located on the same side of the base and shell in the length direction to form the end of the cleaning assembly. The aforementioned accommodating cavity is a hollow area defined by the base, shell, and cover. The various components of the cleaning assembly can be combined in various ways, with the base, shell, and cover arranged in three directions. To provide greater structural stability for the cleaning assembly itself, one side of the cover also serves as a support for the motor inserted into the brush body.

[0024] A protrusion facing away from the accommodating cavity is formed on the base, and at least one suction port leading to the inner cavity of the connecting base is formed on the protrusion. The connecting base closes the side of the cleaning component of the first aspect of the present disclosure facing away from the accommodating cavity, while exposing its suction port. In this way, the suction port does not have to be connected to the equipment separation unit through an additional pipeline. At the same time, the inner wall of the base forms an arc-shaped surface along the first direction, and the arc-shaped surface is configured to gather the suction port from the four sides of the base surface to the center, and the surface of the arc-shaped surface protrudes toward one side of the connecting base to form a concave surface, so as to form an air duct on the surface of the base leading to the suction port, and the dust-laden airflow can be better guided to the suction port by the air duct formed by the arc-shaped surface.

[0025] As previously mentioned, one side edge of the curved surface is configured to extend along the front end of the comb teeth assembly, creating a gradually expanding air duct leading to the suction port. This allows the comb teeth closer to the suction port to have a greater inclination, but the gradually expanding air duct can better concentrate the dust-laden airflow toward the central suction port.

[0026] And, according to a third aspect of the present disclosure, a cleaning device is provided, comprising the cleaning assembly or the roller brush assembly according to the first aspect or the second aspect above. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 Schematic diagram showing the structure of the cleaning assembly according to the first embodiment of the present disclosure;

[0028] Figure 2 A schematic diagram showing Figure 1 The structure of the cleaning component on the side facing away from the accommodating chamber;

[0029] Figure 3 for Figure 1 A partial enlarged view showing Figure 1 The local structure of the middle comb tooth group;

[0030] Figure 4 is a cross-sectional view showing Figure 1 A side cross-sectional view of the cleaning assembly shown;

[0031] Figure 5 Schematic diagram showing the structure of the cleaning assembly according to the second embodiment of the present disclosure;

[0032] Figure 6 for Figure 5 A partial enlarged view showing Figure 5 The local structure of the middle comb tooth group;

[0033] Figure 7 Schematic diagram showing the structure of the cleaning assembly according to the third embodiment of the present disclosure;

[0034] Figure 8 for Figure 7 A partial enlarged view showing a partial structure of the comb tooth group in Example 3;

[0035] Figure 9 Schematic diagram showing the structure of the brush body in the fourth embodiment of the present disclosure;

[0036] Figure 10 It is a schematic diagram showing the structure of assembling the connection base and the cleaning component in the fourth embodiment of the present disclosure. DETAILED DESCRIPTION

[0037] To separate entangled objects from the brush surface, some prior art devices employ teeth-like features within a receiving chamber at the working end of the device. These teeth extend along the length of the brush body and are positioned close to the brush surface. As the brush rotates, the teeth partially penetrate the gaps between the bristles on the brush surface, interfering with them and removing any remaining dirt from the bristles. The removed dirt is then transported out of the receiving chamber through the suction port, following the dust-laden airflow within the chamber.

[0038] The tooth-shaped portion usually constitutes an interference surface or interference end (hereinafter collectively referred to as the interference surface) for contacting the surface of the brush body in whole or in part. When the brush body rolls, the relative movement between the bristle strips on the curved surface of the brush body and the tooth-shaped portion will cause the tooth-shaped portion to extend into the gaps between the bristle strips. At this time, the interference surface on the tooth-shaped portion will collide with the bristle strips and the dirt attached thereto, allowing the dirt, especially the soft entanglements on the bristle strips, to be detached. Obviously, the area of the interference surface should not be too small, because although an excessively small contact area is more conducive to the tooth-shaped portion extending into the space between the bristle strips, it cannot fully contact the dirt, especially the entanglements, resulting in a poor peeling effect. Subsequently, the drive motor may be configured to a higher operating speed to increase the number of contacts between the interference surface of the tooth-shaped portion and the bristle strips, thereby affecting the working power consumption and cleaning efficiency of the equipment. So, in order to make the aforementioned collision contact more complete, in theory, the area of the interference surface should be widened as much as possible to achieve a better stripping effect. However, on the one hand, it will become difficult for the toothed portion with a larger interference area to extend into the bristle strip. On the other hand, and more importantly, a larger collision contact area means a greater frictional resistance between the toothed portion and the bristle strip, which will increase the vibration amplitude of the brush body during rolling, causing the device to bump. At the same time, the load on the drive motor is increased, and the endurance of the device is weakened.

[0039] In addition to the area of the tooth-shaped interference surface, the angle at which the interference surface interferes with the bristle strips should also be considered. First, the teeth need to be relatively close to the brush surface. This "relatively close" requirement means that the interference surface should be neither too far from the brush surface to interfere with the bristle strips on the brush surface, nor too close to the brush surface to hinder the brush's rotation. Under this "relatively close" requirement, if the tooth-shaped interference surface is flat and parallel or approximately parallel to the contact surface between the brush body and the surface to be cleaned, then when the brush rotates, the bristle strips will contact the interference surface at an angle approximately perpendicular to the interference surface, resulting in significant collision resistance. Furthermore, since most of the curved surface of the brush body is covered by the bristle strips, this high collision resistance can damage the soft fibers in the bristle strips. Furthermore, in existing technologies with flat interference surfaces, the need for the teeth to be close to the brush surface and the desire for a larger interference area between the interference surface and the bristle strips often results in the teeth protruding from the brush surface being extended, which in turn requires more space in the housing, forcing the product to be larger in size. In view of this, if the interference surface of the toothed portion is set to form a certain inclination angle with the contact surface between the brush body and the surface to be cleaned, then when the inclination angle is too large, effective contact cannot be formed between the interference surface and the bristle strip, and the entanglement on the bristle strip cannot be effectively peeled off. The problem faced when the inclination angle is too small is similar to the situation where the interference surface is roughly parallel to the contact surface between the brush body and the surface to be cleaned. Of course, in order to form a more effective contact between the interference surface and the bristle strip, the interference surface can also be set as a non-flat surface to increase the effective interference area between the bristle strip and the interference surface. However, the hair and flocculent hair peeled off from the surface of the brush body are usually rolled into clusters, or gathered into balls. The balls and / or clusters of peeled materials will be rolled up on the non-flat interference surface, which will not only make the teeth lose their function, but also the rolled peeled materials will be hooked with the hair and other dirt on the brush body, thereby destroying the rotation continuity and sustainability of the brush body. When the brush body rotates to the hooking position, a larger driving load will be formed, and the power of the driving motor will always be repeatedly and instantaneously increased. It can be seen that the structure and arrangement of the teeth and the interference surface largely determine the peeling effect of the entanglement. In particular, the interference angle of the interference surface not only affects the peeling effect of the entanglement, but also affects multiple factors including the rolling load of the brush body and dynamic balance.

[0040] Some prior art designs configure the teeth within the receiving chamber to protrude toward the brush body surface and extend into the block or tip of the bristle strip. In prior art designs where the teeth are configured as blocks, multiple block-shaped teeth are distributed on the inner wall of the receiving chamber. The raised surfaces and edge end faces of the block-shaped teeth form interference surfaces that contact the bristle strip. If the width of the raised surface of the toothed portion in the length direction of the brush body is too large, then, in addition to the difficulty in the toothed portion extending into the bristle strip as mentioned above, the raised surface with a larger width will squeeze the fluff strips and bristle strips on the surface of the brush body to both sides of the contact position, which will destroy the fiber bundles in the fluff strips and bristle strips. In addition, since the fibers of the fluff strips and bristle strips mostly have different hardness, the squeezed fluff strips and bristle strips will be entangled with each other, which is not conducive to continuous contact between the brush body and the surface to be cleaned. Moreover, since there are fluff strips and bristle strips entangled with each other in a local area of the brush body surface, the dynamic balance of the brush body will be broken when the brush body rolls to the position in this area and contacts the surface to be cleaned. In the prior art where the teeth are configured as tips, the tips are mostly configured as sheet-like or cone-like structures with pointed tips facing the brush surface. Compared to block-shaped teeth, teeth with pointed tips can better insert into the bristle strips. In addition, the tips can be further formed into claw-like or hook-like ends, thereby improving the teeth's ability to grasp residual dirt and hair on the brush surface. However, a problem with teeth that rely on pointed tips for grasping is that the multiple tips, which the teeth rely on to grasp the entangled objects, have difficulty achieving continuous contact with the brush surface. Increasing the number of tips or reducing the spacing between the teeth to make them more densely arranged will not fundamentally solve the problem of the tips not being able to continuously contact the brush surface, but will increase the possibility that the claws or hooks will hook into the bristle strips, causing the brush to rotate obstructed. If the extension length of the tip is too long, there is a possibility of scratching the surface of the brush body and the bristles. If the extension length is not enough, the contact area between it and the entanglement will be insufficient, and it will not be possible to effectively apply force to the entanglement. On the other hand, the angle of the tip toward the brush body surface should also be reasonably designed so that the tip can better interfere with the entanglement that rotates with the brush body.

[0041] In view of the above aspects of the prior art, the preferred embodiment of the present disclosure recognizes that the configuration of the toothed portion and the interference surface should be adjusted to enhance the ability of the toothed portion to pick up and peel off entangled objects, better solve the problem of hair entanglement on the surface of the brush body, and at the same time take into account various issues such as load and dynamic balance during the movement of the brush body.

[0042] The following description of the embodiments of the present disclosure will be made with reference to the accompanying drawings. Those skilled in the art will recognize that the described embodiments may be modified in various ways without departing from the spirit and scope of the present disclosure. Therefore, the drawings and description are illustrative in nature and are not intended to limit the scope of the claims. Furthermore, throughout this specification, the drawings are not drawn to scale, and like reference numerals represent like parts.

[0043] It should be noted that the expressions “first” and “second” used in the embodiments of the present disclosure are for the convenience of expression and should not be understood as limitations on the disclosed embodiments. Subsequent embodiments will not explain this one by one.

[0044] Example 1

[0045] A cleaning assembly 100 provided in the first embodiment of the present disclosure is as follows Figure 1 In the structure shown, the cleaning component 100 is a connecting component provided in the working end of the device (usually the head of the device) as part of the roller brush accommodating chamber of a vacuum cleaning device (e.g., a vacuum cleaner). The cleaning component 100 includes an open inner cavity, which is a accommodating chamber 101 for accommodating the roller brush. In the first embodiment of the present disclosure, the specific method of fixing the brush body in the accommodating chamber is not limited, but it should be understood that a first direction (D1) is defined along the length direction of the cleaning component 100, and the extension direction of the accommodating chamber is also the first direction. Similarly, the brush body is also arranged in the accommodating chamber 101 along the first direction and is fixed in a rollable manner in the accommodating chamber 101 with a rotation axis parallel to the first direction as the axis.

[0046] The cleaning assembly 100 with an open inner cavity includes three components in different directions. In the first direction, that is, the length direction of the cleaning assembly 100, the cleaning assembly 100 first includes a base 102, through which the cleaning assembly 100 is docked with the working end base of the vacuum cleaning device to form an integrated structure. Secondly, the cleaning assembly 100 includes a shell 103. The shell 103 can be regarded as an extension formed by extending from one side of the base 102 in the height direction when the cleaning assembly 100 extends in the first direction. In order to adapt to the rolling fixation of the brush body, the extension of the cleaning assembly 100 in Example 1 will extend an arched portion that adapts to the shape of the brush body to cover the top of the accommodating cavity 101 as a cover. In addition, the cleaning component 100 also includes a cover 104 located on the same side of the base 102 and the shell 103 in the first direction to constitute an end portion of one side of the cleaning component. In this way, the base 102, the shell 103 and the cover 104 are surrounded from three different directions to form a cleaning component 100 with an open inner cavity.

[0047] It should be noted that the above three components can be three independent parts that are assembled together to form the main body of the cleaning component 100; or they can be three parts of an integrally formed component. In different preferred embodiments of the present disclosure, the different parts that constitute the cleaning component are distinguished for the purpose of explanation. This distinction should not be regarded as a limitation on the structure of the cleaning component, nor should it be regarded as a limitation on the parts that constitute the cleaning component and their styles. For example, in other embodiments of the present disclosure, the cleaning component 100 can be composed of an integrally formed base 102 and shell 103, and spliced with an independent cover 104, or it can be an integral structure composed of any two parts of the base 102, shell 103 and cover 104, and spliced with the remaining third independent part; for example, any one or more of the base 102, shell 103 or cover 104 can be decomposed into more independent components, etc. The above-mentioned spliced combination structure of the cleaning component should all be within the scope of protection of the present disclosure.

[0048] Figure 2 Shown Figure 1 The structure of the cleaning component facing away from the accommodating cavity. Figure 1 See Figure 2 The base 102 is formed with a protrusion 105 that faces away from the accommodating chamber 101. When the cleaning component 100 is docked with the working end base of the vacuum cleaning device through the base 102, the protrusion 105 that protrudes in a direction away from the accommodating chamber 101 can serve as the portion of the base that docks with the working end base and extends into the inner cavity of the working end base, thereby allowing the cleaning component 100 to dock with the working end base in a smoother manner and better utilize the area within the accommodating chamber 101, leaving more space for the flow of dust-laden airflow in the accommodating chamber 101. The protrusion 105 also includes an opening (i.e., a suction port 106). When the cleaning component 100 is docked with the working end base, this opening connects the accommodating chamber 101 with the inner cavity area of the working end base, allowing the dust-laden airflow to pass through the opening and be discharged from one side of the accommodating chamber 101 to the other side of the working end base. Usually, the working end base is connected to the separation part of the cleaning device. After the dust-laden airflow reaches the side of the working end base under the action of the negative pressure in the accommodating chamber, it will be further sucked under pressure and discharged to the separation part of the cleaning device to achieve separation of gas and solid. Figure 1 and Figure 2The hollow arrow in the figure shows the flow direction of the dust-laden airflow in the accommodating chamber. In the first embodiment of the present disclosure, the position of the protrusion 105 and the position of the suction port 106 are both located in the middle of the length direction of the cleaning component 100, wherein the position of the protrusion 105 is determined according to the assembly position of the cleaning component 100 and the working end base. Therefore, in other embodiments of the present disclosure, the position of the protrusion 105 and the suction port 106 can also be adjusted according to the style of the working end base, the product appearance of the vacuum cleaning device, etc., to adapt to different product structures and shapes. In addition, the number of protrusions 105 and suction ports 106 can also be multiple. More protrusions 105 can allow the base 102 of the cleaning component 100 to extend further into the working end base, so that the space for the dust-laden airflow to flow in the accommodating chamber 101 is larger, and more suction ports 106 can be used to adapt to a larger suction volume of the dust-laden airflow.

[0049] A comb tooth group is also provided on the inner wall surface of the cleaning component 100, and the comb tooth group includes a series of comb teeth 107 arranged on the inner wall surface of the cleaning component 100 along the first direction. Figure 1 On the inner wall surface of the cleaning component 100, the base 102 also includes a transition flange 108, according to Figure 1 In the direction shown, the base 102 is divided into a transition surface 1021 above the transition flange 108 and a guide surface 1022 below the transition flange 108 with the transition flange 108 as the boundary. The base 102 transitions toward the shell 103 through the transition surface 1021 and smoothly forms an integrated structure. In addition, the base guides the dust-laden airflow in the accommodating chamber 101 toward the suction port 106 through the guide surface 1022.

[0050] The transition surface 1021 is relatively flat, and the multiple comb teeth 107 in the comb tooth group are spaced apart along the surface of the transition surface 1021 and are symmetrical about the central axis of the cleaning assembly along a first direction. In the first embodiment of the present disclosure, a direction toward the roller brush is defined as the second direction (D2). The comb teeth 107 have a first tooth portion extending from the inner wall of the assembly and protruding toward the second direction. Figure 3 for Figure 1 A partial enlarged view showing Figure 1 The local structure of the comb teeth group, such as Figure 3As shown, the comb teeth in this embodiment are the first tooth portion 1071 in the form of straight teeth. The first tooth portion 1071 is a protrusion structure that protrudes from the inner wall surface of the component along the second direction, and when it extends from the inner wall surface of the component, it forms two ends on its extension path, one of which 10711 extends toward the inner wall surface of the component and forms a smooth integral structure with the inner wall surface of the component, and the other end forms a front end portion that partially extends to target the winding on the roller brush; the structure of the first tooth portion 1071 can also be understood as a straight tooth structure with a front end portion facing the brush body formed by extending part of the inner surface of the component in the second direction. The front end portion is a component used to interfere with the winding on the roller brush. In order to better contact the winding, at least one first end face that can directly contact the winding should be formed on the front end portion.

[0051] In other embodiments based on the first embodiment of the present disclosure, the front end portion is the end of the first tooth portion 1071 that extends toward the surface of the brush body, and the end face of the extended end is also the first end face. When the brush body rolls, the front end portion on the comb teeth at least partially extends into the bristle strips on the surface of the brush body, and interferes with the dirt, including entanglements, on and between the bristle strips. The first end face on the front end portion contacts the dirt and plays a role equivalent to the interference surface described above. In addition to the first end face, the first tooth portion 1071 also includes a second end face connecting the front end portion and the inner wall surface of the component. After the brush body surface completes contact with the first end face of the front end portion, it will continue to come into contact with part of the surface of the second end face until it separates from the first tooth portion 1071. During this process, part of the bristle strips contacts the surface of the second end face, while part of the bristle strips contacts the straight tooth surfaces on both sides of the second end face. In the second contact with the first tooth portion 1071, on the one hand, the part of the bristle strips that failed to contact the front end portion can contact the second end face. On the other hand, the entanglement hooked by the front end portion will be pulled out during the contact along the second end face, making it easier to be peeled off. In this embodiment where the front end face of the first tooth portion 1071 constitutes the first end face, the first end face facing the second direction will be configured as a plane or a smooth curved surface with a certain inclination angle relative to the inner wall surface of the component, and at the same time, the extension surface of the first end face facing the brush body passes through the central rotation axis of the brush body or the center point of the brush body. With such a first end face configured, when the brush body rolls, the bristle strips on the curved surface of the brush body can fully contact the first end face in a tangential manner, and can also buffer the collision resistance between the bristle strips and the front end portion and the first end face. Due to the longer contact path, the windings on the brush body can be more fully stressed. During the contact between the windings and the comb teeth, the windings extending from the curved surface of the brush body relative to the radial direction of the brush body will first contact the first end face and be lifted up due to the upward reaction force, and roll with the brush body, and finally be peeled off in contact with the second end face according to the aforementioned process. Therefore, in the comb tooth group of Example 1 of the present disclosure, the contact mode and release angle of the windings with the first tooth portion are different each time. While having a better pickup and peeling effect, the comb tooth group reduces the collision resistance when the windings contact the front end portion, improves the bumping of the brush body during the winding pickup process, and takes into account the load and dynamic balance effect of the brush body.

[0052] In order to achieve a better effect of stripping entangled hair, a hook-shaped picking end can also be formed on the front end. Figure 3The first tooth portion 1071, which extends and protrudes along the second direction, forms a straight hook-shaped pickup end 1074 at the end extending in the second direction, and a second end surface 1073 connecting the pickup end 1074 and the end 10711. The straight hook-shaped pickup end 1074 can prevent the curved hook-shaped structure from being entangled and pulled by the soft winding material, thereby increasing the load on the rolling brush body. In addition, the opening of the pickup end 1074 faces away from the brush body, that is, the pickup end 1074 can interfere with the brush body in the clockwise rolling direction. In the first embodiment of the present disclosure, the pickup end 1074 is also the front end portion, and the front end surface of the hook end of the pickup end 1074 is also the first end surface 1072. Similarly, the extension surface of the first end surface 1072 on the hook-shaped front end portion facing the brush body also passes through the central rotation axis of the brush body or the center point of the brush body. As mentioned above, when configuring the interference surface, a flat interference surface parallel to the contact surface between the brush body and the surface to be cleaned will cause the bristle strip to contact it from a vertical direction, resulting in a large collision resistance. In addition, when a certain angle is formed between the interference surface and the contact surface between the brush body and the surface to be cleaned, the problem of insufficient effective contact area between the interference surface and the bristle strip needs to be taken into account. Figure 4 is a cross-sectional view showing Figure 1 The side cross-sectional structure of the cleaning assembly is shown in FIG. 1 , where the dotted line represents an extension line of the first end surface 1072 in the second direction. In the first embodiment of the present disclosure, the first end surface 1072 as the front end of the comb teeth is first configured to be inclined toward the central rotation axis of the brush body to form a gradually converging tooth opening. Figure 4 As shown by the dashed line in the figure, the extension of the first end surface 1072 in the second direction points to the central rotation axis of the brush body. As the brush body rolls, the bristle strips on the curved surface of the brush body can fully contact the first end surface 1072 in a tangential manner, and can also buffer the collision resistance between the bristle strips and the first end surface 1072, which serves as the leading end. Due to the longer contact path, the windings on the brush body can withstand the force more sustainably. During the contact between the windings and the comb teeth, the windings extending from the curved surface of the brush body relative to the radial direction of the brush body will first contact the straight hook-shaped opening. Part of the winding will be hooked within this opening and at least partially resisted by the first end surface 1072, and then be pulled out as the brush body rolls. Subsequently, another portion of the bristle strips will contact the surface of the second end surface 1073 and the tooth surfaces on both sides, forming a secondary contact as described above. Furthermore, because the first end surface 1072 in contact with the bristle strips is configured as an edge surface with a certain width, it does not damage the fibers in the bristle strips.

[0053] It should be noted that in Figure 1In the illustrated embodiment 1, the central rotational axis of the brush body is coplanar with the extension of the first end surface 1072 of the comb teeth. Thus, the tooth surfaces of the multiple comb teeth extending in the second direction are parallel to each other, allowing the comb tooth set in the first direction to form a continuous flat tooth structure composed of evenly spaced tooth openings. However, due to the spacing between the comb teeth, the contact between the comb tooth set and the brush body surface is also a discontinuous contact zone composed of multiple contact points or contact segments of equal width and spacing. Although the contact area between the comb tooth set and the roller brush surface can be increased by increasing the number of comb teeth, more comb teeth will also increase the resistance of the comb tooth set to contact the brush body. In order to solve this problem and increase the contact area between the comb tooth group and the brush body surface without increasing the number of comb teeth, other embodiments of the present disclosure may, on the basis of embodiment one, direct the extended surface of the first end surface 1072 of the comb teeth toward the center point of the brush body, so that the comb teeth 107 are tilted in the first direction, and the inclination angle of the comb teeth decreases in the direction from both sides of the comb tooth group to the middle. In the comb tooth group with a gradually decreasing inclination angle, the comb teeth on it gather from both sides to the center in the first direction, and the tooth openings of the comb tooth group also open from both sides to the center accordingly. With this design, on the one hand, the contact between the gradually inclined comb teeth and the brush body surface can have a larger contact area. On the other hand, the closer to the suction port 106 from both sides to the center, the greater the wind resistance. Therefore, the gradual opening of the tooth openings can not only reduce the resistance of the comb teeth to the dust-laden airflow, but also make the dirt, especially the entangled objects in clumps or clusters, stuck in the narrow area formed between the comb teeth and the inner wall of the component.

[0054] Look again Figure 1 The transition flange 108 is gradually narrowed from both sides to the middle in the first direction, and the length of the first tooth portion 1071 in the same direction and the direction in which the tooth surface extends is also gradually reduced. In particular, according to Figure 1 The direction shown defines that the comb teeth in the comb tooth group include a top end located above the transition flange 108 and a bottom end located below the transition flange 108. The top ends of the comb teeth in the comb tooth group remain flush, while the bottom ends extend along the path of the transition flange 108. This configuration, on the one hand, allows the comb tooth group to follow the transition flange 108 and cooperate with the curvature of the guide surface 1022 of the base 102 to form a guide structure near the suction port 106; on the other hand, from both sides of the comb tooth group to the center, the comb teeth in the comb tooth group will be closer to the suction port 106, and the position closer to the suction port 106 has a stronger suction force. Therefore, in order to avoid hindering the suction effect, the length of the first tooth portion 1071 of the comb tooth in the tooth surface extension direction is configured to gradually decrease, which can form a gap near the suction port 106.

[0055] Example 2

[0056] Figure 5The structure of the cleaning component in the second embodiment is shown. Figure 5 As shown, the cleaning component 200 in the second embodiment of the present disclosure, Figure 6 for Figure 5 For a partial enlarged schematic diagram, see Figure 5 and Figure 6 In the cleaning component of the second embodiment of the present disclosure, the comb tooth group is configured to include oblique teeth 207 of a first tooth portion 2071. In the second embodiment, the comb tooth group with oblique teeth is also arranged on the inner wall surface of the cleaning component along the first direction. The first tooth portion 2071 also extends from the inner wall surface of the component toward the second direction, and extends a horizontal tooth root portion 2072 and two longitudinal tooth edge portions 2073. The two tooth edge portions 2073 and the tooth root portion 2072 form a triangular comb tooth with a tip 2074. However, unlike the first embodiment, the tooth surface of the comb tooth 207 in the second embodiment is arranged along the inner wall surface of the component. In other words, the comb teeth in the first embodiment are teeth that stand up from the inner wall surface of the component, while the comb teeth 207 in the second embodiment are teeth that cover the inner wall surface of the component.

[0057] The two longitudinally extending tooth edges 2073 extend and intersect to form a corner, which is the tip 2074 of the triangular comb teeth 107. The tip 2074 is also the front end portion extending to face the winding material on the roller brush, and its front end surface forms a shorter end surface extending in the second direction, which is also the first end surface in contact with the surface of the brush body. Figure 5 As shown, the roots of multiple comb teeth 207 are interconnected to form a continuous comb tooth structure. A triangular tooth opening 2075 is formed between the two tips 2074 of adjacent comb teeth 207. As the brush rolls, both the tips 2074 and the tooth opening 2075 of the comb teeth 207 are capable of contacting the brush surface in different ways. The entangled material on the brush surface first contacts the first end surface of the tips 2074. The tips 2074 penetrate into the bristle strips on the brush surface and cut into clumps or clusters of entangled material. The entangled material is then slowly pulled out along its contact with the tooth edge 2073 until it reaches the bottom of the tooth opening 2075 and is finally peeled off. Since the first tooth portion 2071 is covered on the inner wall surface of the component, the tip 2074 of the first tooth portion 2071 can be slightly extended from the transition flange 108 with reference to the front end portion in the first embodiment of the present disclosure, so that the offset portion formed between the tip 2074 and the edge of the transition flange 108 forms an end portion equivalent to a hook, so as to obtain a better peeling effect.

[0058] The first end surface of the tip 2074 is also positioned toward the central rotation axis or center point of the brush body, so that the first end surface is slightly inclined toward the inner wall of the assembly to better accommodate the bristle strips in contact therewith. Based on the second embodiment of the present disclosure, the tip 2074 of the beveled tooth can be further configured as a straight hook to achieve the same technical effect as the straight hook in the first embodiment. For details, please refer to the portion of the first end surface forming the straight hook in the first embodiment.

[0059] Continue to read Figure 5 The roots of the multiple comb teeth 207 are connected to each other, so that the comb tooth group as a whole is a continuous structure. This is because, due to the existence of the tooth openings 2075, if the comb tooth group is discontinuous in its extension direction, gaps will be formed in the tooth openings of adjacent comb teeth. The entangled objects on the bristle strips may pass through the gaps to escape the interference of the comb teeth. In addition, the entangled objects or dirt peeled off from the bristle strips are also likely to accumulate in the gaps, resulting in a decrease in the function of the comb tooth group. At the same time, it will also interfere with the residue on the brush body surface and hinder the rolling of the brush body. It should be noted that at the tooth mouth 2075 position, the tooth root spacing at the position where two adjacent comb teeth meet should not be too narrow. Too narrow spacing will form a relatively sharp tip at the end of the tooth mouth, and the sharp tip will continuously scrape the bristles on its surface during contact with the brush body. At the same time, because the entanglements on the surface of the brush body are generally composed of soft debris, hair and other dirt, the tooth root spacing should not be too wide to avoid the entanglements from deforming at the tooth mouth and easily flipping over from the tooth mouth position. Too wide spacing between the tooth mouths is also not good. Therefore, the tooth root spacing of the tooth mouth should be set within a reasonable range. In the second embodiment of the present disclosure, the root spacing of the comb teeth is set within a range of less than or equal to 1 mm.

[0060] When designing the reasonable spacing of the tooth roots, the angle formed in the tooth mouth should also be considered. Figure 5, the teeth 2075 form a first acute angle. The angle of the first angle is adjustable. A larger first angle can better adapt to large debris, and the force between the teeth of the bristles is relatively relaxed; a smaller first angle can increase the clamping force of the teeth and improve the peeling effect. The angle of the first angle is set in the range of 16 to 26 degrees. In different embodiments of the present disclosure, the first angle between the teeth can be set to the same value within the range, so that each tooth in the comb tooth group will maintain the same opening, the contact between the comb tooth group and the surface of the brush body will maintain uniform force, and the rolling of the brush body will have better stability. Of course, the angle of the first angle between each tooth opening can also be set to a different value within the aforementioned range, so as to take into account the advantages of the different angle configurations of the above-mentioned first angle. Under this configuration, the tooth opening degree of the comb tooth group also changes. For example, in the comb tooth group, the tooth openings of the comb teeth on both sides are relatively closed, while the tooth openings of the middle comb teeth are relatively open. In other words, the multiple tooth openings of the comb tooth group will gradually open relative to the central axis of the inner wall of the component in the direction from both sides of the comb tooth group to the center, thereby taking into account the respective advantages of the larger and smaller first angles.

[0061] Furthermore, the teeth of the comb set are more open near the suction port, which can also achieve a stronger suction force adapted to the suction port and avoid hindering the suction effect. Similarly, to adapt to the gradually opening teeth, similar to the first embodiment, the tips of the comb teeth in the second embodiment can also be configured to be flush with the transition flange 108, which can not only avoid the dust-laden airflow near the suction port, but also prevent the separated dust and debris from accumulating at this location.

[0062] Example 3

[0063] In the third embodiment of the present disclosure, a solution is provided for forming stepped teeth on the inner wall surface of the cleaning component 300. Figure 7 In the third embodiment, the comb teeth 307 include a first tooth portion 3071 extending toward the second direction, and a second tooth portion 3072 extending toward the tooth root of the adjacent first tooth portion 3071. Between two adjacent first tooth portions 3071, the second tooth portion 3072 extends from the top of the first tooth portion on one side to the bottom end of the first tooth portion 3071 on the other side, that is, the tooth root. Therefore, the second tooth portion 3072 is roughly sloped and forms a certain inclination angle with the inner wall surface of the component. In this way, the first tooth portion 3071 and the second tooth portion 3072 are combined to form a sloped structure. The combination of multiple sloped structures constitutes a series of stepped teeth distributed step by step.

[0064] Figure 8 for Figure 7The partially enlarged view shows the partial structure of the comb tooth group in Example 3. As shown in the figure, in this embodiment, the first tooth portion 3071 and the second tooth portion 3072 are arranged at different widths on the inner wall surface of the component. The width of the second tooth portion 3072 is smaller than the width of the first tooth portion 3071, so that the position of the end of the second tooth portion 3072 extends from the first tooth portion 3071 to form a protruding front end portion 3073. The front end portion 3073 points to the center point or the central rotation axis of the roller brush. Specifically, the end face of the front end portion constitutes the first end face that contacts the winding object. The configuration purpose of the first end face of the front end portion 3073 can refer to the corresponding parts in Examples 1 and 2. When the pointing direction of the front end portion 3073 is toward the central rotation axis of the roller brush, the front ends 3073 of the multiple comb teeth 307 point in the direction of the roller brush. When the pointing direction of the front end portion 3073 is toward the center point of the roller brush, the pointing directions of the front ends 3073 of the multiple comb teeth 307 will converge toward the center. In other embodiments based on Example 3 of the present disclosure, improvements to the front end portion also include:

[0065] 1) The embodiments of the present disclosure do not limit the formation method and position of the front end portion 3073. For example, the first tooth portion 3071 with a wider width is arranged so that it can extend from both sides of the second tooth portion 3071 at the same time, that is, a protruding front end portion 3073 is formed on each side of the first tooth portion 3071, and the front end portion away from the transition flange 108 has a longer extension length than the other front end portion. In this way, the two front end portions 3073 facing the brush body can adapt to the rotation of the brush body at different angles; for example, one or more front end portions are formed on one side or both sides of the second tooth portion 3072 to expand the number and contact area of the contact points between the comb teeth and the roller brush surface, which is conducive to improving the ability of the comb tooth group to peel off entanglements from the brush body. However, it is also necessary to consider the resistance that multiple front end portions may cause to the rolling of the brush body under multi-point contact;

[0066] 2) The extension heights of the first tooth portion 3071 and the second tooth portion 3072 in the second direction may be different. In some embodiments, the extension height of the first tooth portion 3071 may be slightly higher than that of the second tooth portion 3072, thereby forming a transition zone between the top surface of the first tooth portion 3071 and the slope of the second tooth portion 3072. A concave tooth surface capable of contacting the bristle strip is formed between the smooth transition zone and the slope of the second tooth portion 3072, thereby increasing the contact mode and contact area between the stepped teeth and the winding object. In some other embodiments, the extension height of the second tooth portion 3072 may be slightly higher than that of the first tooth portion 3071, thereby forming a groove portion above the front end portion 3073, which may cooperate with the front end portion so that the winding object hooked by the front end portion is subjected to force along the groove wall of the groove portion and is torn apart.

[0067] 3) When the second tooth portion 3072 extends toward the root of the first tooth portion 3071 on the other side, it can extend directly to form a continuous structure, or it can extend to the root of the first tooth portion 1071 on the other side, maintaining a certain distance to form a discontinuous structure. When set as a discontinuous structure, the spacing between the first tooth portion 3071 on the other side of the second tooth portion 3072 is set to be less than or equal to 1 mm. If this spacing is set too large, the gap position will not form an effective clamping force, resulting in poor pickup performance.

[0068] 4) The front end portion 3071 may be further extended to form a straight hook-shaped front end portion as in the first and second embodiments of the present disclosure, and a shorter end face of the hook-shaped front end portion forms a first end face in contact with the brush body surface.

[0069] 5) The width of the second tooth portion 3072 is set to be greater than the width of the first tooth portion 3071, so that the second tooth portion 3072 extends beyond the end of the first tooth portion 3071 to form a notch-shaped front end portion 3073, which constitutes the bottom surface and at least two side surfaces, namely the first end surface, of the notch. The opening direction of the front end portion 3073, and at least one of the above-mentioned bottom surface and side surfaces are set to be toward the center point or the central rotation axis of the roller brush. For the purpose of such configuration, reference can be made to the corresponding parts in Examples 1 and 2. For example, when the opening direction of the front end portion 3073 is toward the central rotation axis of the roller brush, a neat front end portion 3073 with the openings in the same direction is formed. When the opening of the front end portion 3073 is toward the center point of the roller brush, a front end portion with the openings gathered toward the center is formed.

[0070] Continue to read Figure 7The inclination angle of the slope of the second tooth portion 3072 relative to the inner wall surface of the component can be configured with reference to the methods in Example 1 and Example 2. A larger inclination angle can make the slope smoother and expand the contact area between the bristle strip and the windings thereon and the comb teeth. In addition, a more balanced slope can buffer the collision resistance between the bristle strip and the slope, protecting the soft bristle strip from being difficult to restore to a fluffy shape due to excessive deformation. A smaller inclination angle can make the gap between the first tooth portion 3071 and the second tooth portion 3072 better play its clamping and picking effect. In order to take into account the above two aspects, in Example 3 of the present disclosure, the inclination angle formed by the slope of the second tooth portion relative to the inner wall surface of the component is set in the range of 10 degrees to 20 degrees. Similarly, in different embodiments of the present disclosure, the above-mentioned inclination angle of the second tooth portion of each comb tooth can be set to the same value within this range, so that each tooth mouth in the comb tooth group will maintain the same inclination, the contact between the comb tooth group and the brush body surface will maintain uniform force, and the rolling of the brush body will have better stability. The inclination angle of each comb tooth can also be set to a different value within the aforementioned range to take into account the advantages of the above-mentioned different inclination angle configurations. Under this configuration, in the comb tooth group, the tooth openings of the comb teeth on both sides are relatively closed, while the tooth openings of the middle comb teeth are relatively open, so as to better accommodate the bristle strips and avoid the suction port on the inner wall of the component, so that the dust-laden gas can obtain a better flow effect near the suction port. In order to increase the contact area between the second tooth portion 3072 and the surface of the brush body, the slope surface of the second tooth portion 3072 can also have a certain curvature to form an arc-shaped slope surface. The arc-shaped slope surface can also make the contact between the bristle strip and the second tooth portion 3072 smoother, protecting the bristle strip from breaking during the interference with the comb teeth.

[0071] Example 4

[0072] The cleaning roller brush in Examples 1 to 3 is generally rollably fixed on a driving member or driving end in the accommodating cavity, and the device driving motor transmits the driving force to the roller brush body through the driving member or driving end. Therefore, the brush body also correspondingly includes a connecting portion for adapting to the driving member or driving end. The prior art includes a variety of brush body connecting parts and the configuration methods between the driving member and the driving end. In different methods, the main adjustments are the position and style of the driving member and the driving end, as well as the connection method with the brush body. For example, the driving member is a rotatable clamping member driven by a motor, and is connected to one end face or both end faces of the brush body along the length direction of the brush body. The clamping member can be a rotatable annular member that holds the circular end face of the brush body in place by snapping or snapping, so that when the clamping member is driven to rotate, the brush body can be driven to roll. The clamping member can also be a rotatable arc-shaped member that clamps a portion of the end face of the brush body. In this method, the arc-shaped surface of the clamping member is generally configured to have the same curvature as the end face of the brush body. For another example, the driving member is a roller structure disposed within a hollow roller brush member. The roller structure has a convex portion on its surface that fits with a concave portion on the inner surface of the brush body, so that the two form a linked snapping engagement, thereby driving the brush body to rotate in accordance with the rotation of the roller.

[0073] In the fourth embodiment of the present disclosure, the brush body is as follows Figure 9 In the illustrated structure, one end of the cylindrical brush body 400 is configured as an open plug-in portion 401, while the other end is configured as a plug head (not shown) with a connecting tip that docks with an end cap 402. Correspondingly, the end caps docking with both sides of the brush body 400 have a hole or groove on one end cap 402 that mates with the tip of the plug head, while the other end cap (not shown) forms a shaft that extends into the plug-in portion 401. It should be noted that in other preferred embodiments of the present disclosure, the drive motor is powered by a battery pack or power supply unit within the device body to generate the torque required to drive the roller brush. The specific location of the motor can also be configured in different locations within the vacuum cleaning device according to different needs. However, considering the driving effect and avoiding potential loss in torque transmission, it is preferred that the motor be directly located within the roller brush 400. Furthermore, the cleaning brush body in the preferred embodiment of the present disclosure can be adapted to any known connection method for placement within the device's housing and can be driven using any known drive method, thereby adapting to the requirements of different types of products or device layouts.

[0074] The surface of the roller brush has a number of fluff strips and brush strips protruding radially outward. The fluff strips and brush strips protrude radially outward along the brush body for a certain length, so that when the brush body rotates, the brush strips and fluff strips can interfere with the comb tooth group, especially the front end portion on the comb teeth. In the process of interference contact between the two, the front end portion of the comb teeth extends into the fibers of the bristle strips and fluff strips, as well as the entanglements, thereby separating the entanglements on the bristle strips and fluff strips by hooking, grabbing, etc., and the peeled-off entanglements will be discharged along with the dust-laden airflow in the accommodating cavity.

[0075] Figure 10 This is a schematic diagram showing the structure of the connection base and the roller brush assembly in the fourth embodiment of the present disclosure. As shown in the figure, the cleaning assembly 100 in the first to third embodiments is docked with a connection base 500, which is also the working end base of the device referred to in the first embodiment. The base of the cleaning assembly is buckled with the connection base 500, and the protrusion 105 of the cleaning assembly 100 extends into the interior of the connection base 500. Figure 1 On the base 102, the arc surface of the guide surface 1022 will protrude toward the direction where the connection base 500 is located, so as to form an arc-shaped concave surface on one side of the accommodating cavity 101. The arc-shaped concave surface will Figure 1 As shown above, the surfaces of the base converge from all sides to the suction port 106 at the center of the base. This "gathering" should be understood as the arc-shaped concave surface having relatively gentle curvature on both sides. The closer the arc-shaped concave surface is to the center position, the greater its curvature will be, and eventually it will be retracted at the position of the suction port 106, so that the gradually converging surface of the guide surface 1022 constitutes an open air duct leading to the suction port 106. Moreover, the open air duct will form a gradual expansion trend in the process of guiding the suction port 106 to adapt to the greater suction force near the suction port 106. The dust-laden airflow generated by the negative pressure in the accommodating chamber 101 will be better guided to the suction port 106 along the surface of the arc-shaped concave surface, and will be discharged to the separation unit of the device through the suction port 106.

[0076] In order to adapt to the protrusion on the cleaning component 100 when assembled with the cleaning component, and to expose the suction port 106 on the connecting base 500, the connecting base 500 also includes a plug end. Figure 10 , Figure 9The structure of the connection base 500 and the cleaning component 100 assembled and covered is shown. As shown in the figure, the plug end 501 of the connection base 500 has an opening corresponding to the suction port 106. The position of the opening can be adjusted according to the different settings of the cleaning component 100 in the first embodiment of the present disclosure, but at least the suction port on the protrusion of the cleaning component needs to be exposed when the connection base and the cleaning component are combined in the assembled state. In this way, the suction part, pipeline, etc. connected to the connection base 500 can be directly connected to the suction port 106, without having to configure a pipeline in the connection base 500 to connect the suction port 106 to the separation unit.

[0077] The above embodiments merely illustrate several implementations of the present disclosure, and while their descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the scope of the present disclosure, all of which fall within the scope of protection of the present disclosure. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. A cleaning assembly, wherein an inner cavity of the cleaning assembly defines an accommodating cavity for accommodating a roller brush, the cleaning assembly extending in a first direction in length and extending in a second direction toward the roller brush, the cleaning assembly comprising: A comb tooth group, wherein the multiple comb teeth in the comb tooth group are continuous or discontinuous structures located on the inner wall surface of the component along the first direction. When the roller brush rotates in the assembled state, the comb tooth group interferes with the surface of the roller brush to remove the entanglement on the roller brush, wherein the comb teeth include at least one front end portion for the entanglement on the roller brush, and the front end portion points to the center point of the roller brush or the central rotation axis of the roller brush.

2. The cleaning assembly according to claim 1, wherein The comb teeth include at least one first tooth portion extending from the inner wall surface of the component and protruding toward the second direction, the front end portion is the whole or part of the first tooth portion body, and the front end portion includes at least one first end face in the second direction, and the extended surface of the first end face passes through the center point of the roller brush or the central rotation axis of the roller brush.

3. The cleaning assembly according to claim 1, wherein The comb teeth in the comb tooth group are symmetrical about the central axis of the inner wall surface of the component along the first direction.

4. The cleaning assembly according to claim 2, wherein: The comb teeth are straight teeth including the first tooth portion, and the first tooth portion is a protrusion formed by protruding from the inner wall surface of the component toward the second direction. The two ends of the protrusion extending from the inner wall surface of the component include one end extending toward the inner wall surface of the component and forming an integral structure with the inner wall surface of the component, and a front end portion for the winding object on the roller brush, and the first end surface is at least a part of the surface of the front end portion.

5. The cleaning assembly according to claim 4, wherein The front end portion also includes a picking end for the entangled objects on the roller brush, and the picking end forms a bent portion for the entangled objects in whole or in part, and the first end face is the head end face of the picking end.

6. The cleaning assembly according to claim 4 or 5, wherein: The extended surface of the first end surface passes through the center point of the roller brush, so that the tooth surface of the comb teeth is inclined relative to the inner wall surface of the component, and the inclination angle of the comb teeth is configured to decrease from both sides to the middle, so that the comb teeth in the comb tooth group gather from both sides to the center in the first direction.

7. The cleaning assembly according to claim 4 or 5, wherein: In the comb tooth set, the length of the first tooth portion in the extending direction of the tooth surface gradually decreases in the direction from the comb teeth on both sides to the central comb tooth.

8. The cleaning assembly according to claim 2, wherein: The comb teeth are oblique teeth including the first tooth portion, the first tooth portion forms at least one tip, the tooth roots of multiple comb teeth are connected to each other, and a tooth opening is formed between the tips of adjacent comb teeth, and the first end face is the head end face of the tip.

9. The cleaning assembly according to claim 8, wherein The tooth gaps form a first angle, and the angle value of the first angle is the same value within the range of 16 degrees to 26 degrees.

10. The cleaning assembly according to claim 8, wherein The angle values of the multiple first angles formed between the tooth openings are different values within the range of 16 degrees to 26 degrees, and the multiple tooth openings of the comb tooth group gradually open relative to the central axis of the inner wall surface of the component in the direction from both sides of the comb tooth group to the center.

11. The cleaning assembly according to any one of claims 8, 9 or 10, wherein: The tip also forms a picking-up end for the entangled objects on the roller brush, and the picking-up end forms a bent portion for the entangled objects in whole or in part, and the first end face is the head end face of the picking-up end.

12. The cleaning assembly according to claim 10, wherein In the comb tooth group, the length of the first tooth portion in the extending direction of the tooth surface gradually decreases in the direction from both sides to the center.

13. The cleaning assembly according to claim 12, wherein: In the comb tooth group, the minimum distance between two adjacent comb teeth at the tooth opening is less than or equal to 1 mm.

14. The cleaning assembly according to claim 2, wherein: The comb tooth group includes at least one first tooth portion of the comb teeth, and a sloped second tooth portion extending toward a tooth root portion adjacent to the first tooth portion, so that the comb tooth group forms continuous or discontinuous stepped teeth.

15. The cleaning assembly of claim 14, wherein: The first tooth portion and / or the second tooth portion, in whole or in part, further extends on the inner wall surface of the component to form at least one front end portion on the first tooth portion and / or the second tooth portion, and the first end surface is at least a part of the surface of the front end portion.

16. The cleaning assembly of claim 15, wherein: The front end portion further includes a picking end for the entangled object on the roller brush, and the picking end forms a bent portion for the entangled object in whole or in part, and the first end face is a head end face of the picking end.

17. The cleaning assembly of claim 14, wherein: The first tooth portion and / or the second tooth portion, in whole or in part, further extends on the inner wall surface of the component to form at least one notch-shaped front end portion on the first tooth portion and / or the second tooth portion, and the first end face is at least one face constituting the notch-shaped front end portion.

18. The cleaning assembly according to any one of claims 14 to 17, wherein A distance between the second tooth portion and the first tooth portion of an adjacent comb tooth at a tooth root is configured to be within a range of less than or equal to 1 mm.

19. The cleaning assembly according to any one of claims 14 to 17, wherein In the comb tooth set, the slope angles of the second tooth portions of the comb teeth increase gradually from both sides toward the center, so that the comb teeth in the comb tooth set gather from both sides toward the center in the first direction.

20. The cleaning assembly of claim 19, wherein The inclination angle of the slope surface of the second tooth portion relative to the inner wall surface of the component is in the range of 10 degrees to 20 degrees.

21. A roller brush assembly, wherein: This component includes: Connect the base; A roller brush having a plurality of velvet strips and / or bristle strips protruding radially outward on its surface, and The cleaning assembly according to any one of claims 1 to 20, wherein The roller brush is configured to be rotatably fixed in the accommodating cavity of the cleaning component. During the rotation of the roller brush, the fluff strip and / or the bristle strip interferes with the comb tooth group to remove entanglements on the roller brush.

22. The roller brush assembly according to claim 21, wherein: The cleaning component further comprises: A base extending in the length direction and used to dock with the connecting base, a shell extending in the height direction and configured to adapt to the extension of the outer contour of the roller brush, and a cover located on the same side of the base and the shell in the length direction to constitute the end of the cleaning assembly, the base, the shell and the cover define an accommodating cavity for accommodating the roller brush.

23. The roller brush assembly according to claim 2, wherein: A protrusion is formed on the base, facing away from the accommodating cavity, and at least one suction port is formed on the protrusion, which is led to the inner cavity of the connecting base. The inner wall of the base forms an arcuate surface along the first direction, and the arcuate surface is configured to converge from the four sides of the base surface to the suction port in the center, and the surface of the arcuate surface protrudes toward one side of the connecting base to form a recessed surface, so as to form an air duct leading to the suction port on the surface of the base.

24. The roller brush assembly according to claim 23, wherein: The connecting base and the cleaning component are assembled into an integrated structure, which also includes: a plug-in end having at least one opening corresponding to the suction port. When the connecting base is combined with the cleaning component in the assembled state, the suction port is exposed through the opening on the plug-in end.

25. The roller brush assembly according to claim 24, wherein: One side edge of the arc-shaped surface is configured to extend along the front end of the comb tooth group, so as to form a gradually expanding trend in the air passage leading to the suction port.

26. A cleaning device comprising the cleaning assembly or the roller brush assembly according to any one of claims 1 to 25.

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