CN221013176U

CN221013176U - Winding thing clearance subassembly, cleaning element and surface cleaner

Info

Publication number: CN221013176U
Application number: CN202420578624.0U
Authority: CN
Inventors: 韩盼; 杜帅; 张闫
Original assignee: Dreame Technology Suzhou Co ltd
Current assignee: Dreame Technology Suzhou Co ltd
Priority date: 2024-03-25
Filing date: 2024-03-25
Publication date: 2024-05-28
Anticipated expiration: 2034-03-25
Also published as: DE202024101949U1

Abstract

The application discloses a winding object cleaning assembly, a cleaning assembly and a surface cleaner. The winding clearance subassembly includes: the dust collection device comprises a shell, a dust collection device and a dust collection device, wherein a rolling brush cavity for accommodating a rolling brush is formed in the shell; the first comb tooth group and the second comb tooth group are sequentially arranged on the inner wall of the rolling brush cavity along the advancing direction of the rolling brush cavity, and the first comb tooth group is adjacent to the dust collection opening; wherein the first comb teeth group comprises a plurality of first comb teeth; the second comb tooth group comprises a plurality of second comb teeth; in the transverse direction, the plurality of second comb teeth and the plurality of first comb teeth are distributed in a staggered manner; the technical scheme provided by the application can solve the problem that a large winding object is wound on the rolling brush and is difficult to clean, and avoid the problems of missing sweeping, missing cleaning, low cleaning force and the like caused by the clusters of the bristle clusters in the subsequent cleaning process, thereby improving the cleaning effect and improving the user experience.

Description

Winding thing clearance subassembly, cleaning element and surface cleaner

Technical Field

The application relates to the technical field of cleaning equipment, in particular to a winding cleaning assembly, a cleaning assembly and a surface cleaner.

Background

Along with the rapid development of technology, the living standard of people is continuously improved, and various surface cleaning devices enter the life of people, such as a dust collector, a mite removing instrument and other handheld cleaning devices, and cleaning robots such as a sweeping robot, a sweeping and mopping integrated robot, a floor washing robot and the like. These cleaning devices are typically provided with a cleaning assembly which typically has a suction opening through which the cleaning assembly engages the surface to be cleaned and through which dirty air or liquid or a mixture of gases and liquids is drawn into the surface cleaning device. The cleaning assemblies can be generally categorized into dry cleaning assemblies and wet cleaning assemblies. The dry cleaning assembly generally has a dust collection part and a rolling brush part, and the dust collection part can be matched with the rolling brush part to complete the operations of sweeping floor, dust collection and the like. The roller brush assembly of the dry cleaning assembly plays a critical role in the effectiveness of the surface cleaner in removing dirt from a surface, whether the surface is a hard floor covering such as wood or stone or a soft floor covering such as carpeting. Accordingly, cleaner manufacturers have made many efforts to optimize the design of the roll brush assembly to improve cleaning performance.

Because the rolling brush is easy to wind filament-shaped windings such as hair, animal hair, cotton wool and the like in the rotating process, the windings often block dust collection openings unpredictably in the existing surface cleaners, and a user has to interrupt the currently executed cleaning task to disassemble and clean, so that great inconvenience is brought to daily use of the user, and the user experience is seriously affected. The existing technology of cutting and removing hair can clean the winding similar to hair and hair on the rolling brush, but does not consider how to restore the cleaning capability of the rolling brush. For example, chinese patent publication No. CN112956945B discloses a hair removing assembly, which includes front and rear groups of comb teeth, and the cleaning effect of the windings can be improved by matching the two groups of comb teeth, but the aggregation force applied by the bristle clusters on the rolling brush due to aggregation of the windings can cause the bristle clusters to also generate clusters, if the bristle clusters of the clusters cannot be timely opened and restored to a uniform and fluffy distribution state, even if the windings on the rolling brush are cleaned completely, the problems of leakage, cleaning leakage, low cleaning force and the like caused by the clusters of the bristle clusters in the subsequent cleaning process can not be avoided, so that the cleaning effect is poor, and the problems can become more remarkable when the diameter of filament-like winding clusters such as hair, animal hair, cotton wool and the like on the surface to be cleaned is greater than 2 cm.

Disclosure of utility model

The application provides a winding object cleaning assembly, a cleaning assembly and a surface cleaner, which are used for solving the problem that a large winding object is difficult to clean when being wound on a rolling brush, avoiding the problems of missing sweeping, missing cleaning, low cleaning force and the like caused by clusters of bristle clusters in the subsequent cleaning process, improving the cleaning effect and improving the user experience.

According to a first aspect of the present application there is provided a wrap cleaning assembly comprising: the dust collection device comprises a shell, a dust collection device and a dust collection device, wherein a rolling brush cavity for accommodating a rolling brush is formed in the shell;

The first comb tooth group and the second comb tooth group are sequentially arranged on the inner wall of the rolling brush cavity along the advancing direction of the rolling brush cavity, and the first comb tooth group is adjacent to the dust collection opening;

The first comb tooth group comprises a plurality of first comb teeth which are arranged on the inner wall of the rolling brush cavity at intervals along the transverse direction of the rolling brush cavity; the second comb tooth group comprises a plurality of second comb teeth which are arranged on the inner wall of the rolling brush cavity at intervals along the transverse direction of the rolling brush cavity; in the transverse direction, the plurality of second comb teeth and the plurality of first comb teeth are distributed in a staggered manner; the first comb teeth have:

The first top and the first root which are opposite to each other are connected with the inner wall of the rolling brush cavity;

a windward side and a leeward side opposite to each other, the windward side facing the dust collection port;

The rotating speed of the rolling brush is larger than 1120 revolutions per minute and smaller than 1600 revolutions per minute in a working state of cleaning a winding.

In addition to or in lieu of one or more of the features disclosed above, the thickness of the first comb teeth in the lateral direction is of a diminishing potential in a direction from the windward side to the leeward side such that the area of the windward side is greater than the area of the leeward side.

In addition to or as an alternative to one or more of the features disclosed above, the windward side is concave towards the leeward side.

In addition to one or more features disclosed above, or alternatively, the thickness of the first comb teeth in the lateral direction is tapered along a direction from the first root portion to the first tip portion such that the first comb teeth are wedge-shaped.

In addition to or in lieu of one or more of the features disclosed above, the first tip has a relief surface recessed toward the first root.

In addition to or as an alternative to one or more of the features disclosed above, the second comb teeth have:

The second top and the second root which are opposite to each other are connected with the inner wall of the rolling brush cavity;

A front combing face and a rear combing face opposite to each other, the front combing face facing the dust suction opening;

Wherein the thickness of the second comb teeth in the transverse direction is tapered in a direction from the second root portion to the second tip portion so that the second comb teeth are wedge-shaped.

In addition to or in lieu of one or more of the features disclosed above, an orthographic projection of the second tip on the inner wall of the roller brush cavity is located within an orthographic projection of the second root on the inner wall of the roller brush cavity.

In addition to or in lieu of one or more of the features disclosed above, the second top portion has a first rounded transition surface with the front carding surface and a second rounded transition surface with the rear carding surface.

In addition to or in lieu of one or more of the features disclosed above, the second tip is substantially parallel to the second root.

In addition to or in lieu of one or more of the features disclosed above, the maximum distance between the first crest and the first root is h1, the minimum distance between the first crest and the first root is h2, and the distance between the second crest and the second root is h3, then there are: h3 is more than or equal to h2 and less than h1.

In addition to one or more features disclosed above, or alternatively, h1 and h2 satisfy the relationship: h1, h2=1.5 to 3.

In addition to or in lieu of one or more of the features disclosed above, the angular extent of the first tip is 15 ° -45 °, and the angular extent of the second tip is 115 ° -135 °.

In addition to, or as an alternative to, one or more of the features disclosed above, the forward direction is perpendicular to the lateral direction.

In addition to or as an alternative to one or more of the features disclosed above, the first comb teeth have:

A first side and a second side extending between the first top, the first root, the windward side and the leeward side.

In addition to or in lieu of one or more of the features disclosed above, in the forward direction, the projection of each of the second comb teeth coincides with the projected portion of the corresponding one of the first comb teeth nearest the second comb teeth.

According to a second aspect of the present application there is also provided a cleaning assembly comprising:

The rolling brush is provided with a plurality of bristles protruding outwards along the radial direction of the rolling brush;

and a wrap cleaning assembly according to any of the first aspect,

The rolling brush is rotatably arranged in the rolling brush cavity, and the rotation axis of the rolling brush is parallel to the transverse direction; in the rotating process of the rolling brush, the bristles can sequentially interfere with the first comb tooth group and the second comb tooth group.

In addition to or in lieu of one or more of the features disclosed above, the roll brush includes:

the rod body is detachably and rotatably connected with the rolling brush cavity;

And a plurality of first agitating members, each of the first agitating members comprising a plurality of the bristles, the first agitating members extending helically around the wand on a circumferential outer surface of the wand;

Wherein the first stirring piece comprises a first spiral part extending along a first spiral direction and a second spiral part extending along a second spiral direction; the first spiral direction and the second spiral direction are opposite to each other, so that the first spiral part and the second spiral part intersect to form a V-shaped first double-spiral structure.

In addition to or in lieu of one or more of the features disclosed above, the first helical portion intersects the second helical portion at a central location of the wand body.

In addition to or in lieu of one or more of the features disclosed above, the first helical portion extends in the first helical direction from the first end of the wand towards the central location and the second helical portion extends in the second helical direction from the second end of the wand towards the central location.

In addition to, or as an alternative to, one or more of the features disclosed above, a converging duct is included, the converging duct comprising: a pair of interfaces and a tuyere opposite each other, and a guide wall extending between the pair of interfaces and the tuyere; the air collecting port is characterized in that the opposite port is matched and butted with the dust collecting port, and the cross section area of the air collecting port is smaller than that of the dust collecting port.

In addition to or in lieu of one or more of the features disclosed above, the center of the tuyere is aligned with the central position of the rod body.

In addition to or in lieu of one or more of the features disclosed above, the first screw and the second screw both deflect the first stirring member 45 ° -180 °.

In addition to one or more features disclosed above, or alternatively, the first and second helical portions may have an included angle γ of 30 ° to 100 ° at the intersection.

In addition to or in lieu of one or more of the features disclosed above, the plurality of first stirring members are spaced apart in the circumferential direction of the wand.

In addition to or in lieu of one or more of the features disclosed above, the inner wall of the roller brush cavity is generally cylindrical, with a gap of 0mm to 3mm between the first stirring member and the inner wall of the roller brush cavity.

In addition to or in lieu of one or more of the features disclosed above, the roll brush further comprises:

a plurality of second stirring members extending spirally around the rod body on a circumferential outer surface thereof;

Wherein the second stirring member includes a third screw portion extending in a third screw direction and a fourth screw portion extending in a fourth screw direction; the third spiral direction and the fourth spiral direction are opposite to each other, so that the third spiral part and the fourth spiral part intersect to form a V-shaped second double-spiral structure.

In addition to or in lieu of one or more of the features disclosed above, the third helical portion intersects the fourth helical portion at a central location of the wand body.

In addition to or in lieu of one or more of the features disclosed above, the third helical portion extends in the third helical direction from the first end of the wand towards the central location and the fourth helical portion extends in the fourth helical direction from the second end of the wand towards the central location.

In addition to or in lieu of one or more of the features disclosed above, the first agitating members extend radially outwardly from the shaft to a greater extent than the second agitating members extend radially outwardly from the shaft.

In addition to or in lieu of one or more of the features disclosed above, the third screw and the fourth screw each deflect the second stirring member by 45 ° -180 °.

In addition to or in lieu of one or more of the features disclosed above, the inner wall of the roller brush chamber is generally cylindrical with a gap of 1mm to 5mm between the second agitating member and the inner wall of the roller brush chamber.

In addition to or in lieu of one or more of the features disclosed above, the first comb teeth interfere with the bristles by an amount g1, the second comb teeth interfere with the bristles by an amount g2, and g1 > g2.

In addition to or in lieu of one or more of the features disclosed above, the difference in the amount of interference of the first and second comb teeth with the bristles satisfies the relationship: 0mm < g1-g2 < 5mm.

According to a third aspect of the present application there is also provided a surface cleaner comprising a wrap cleaning assembly as claimed in any of the first aspects or comprising a cleaning assembly as claimed in any of the second aspects.

One of the above technical solutions has the following advantages or beneficial effects: in the task of cleaning the surface to be cleaned, along with the continuous rotation of the rolling brush and the time lapse, filament-shaped windings such as hair, animal hair, cotton wool and the like can gather into clusters on the outer peripheral surface of the rolling brush and finally agglomerate into large winding clusters with the diameter exceeding 2cm, the conventional surface cleaner only considers how to clean the windings, but does not consider how to enable the bristle clusters after the windings are cleaned to quickly recover to a uniformly distributed state, so that even if the windings on the rolling brush are cleaned very cleanly, the problems of leakage, cleaning leakage, low cleaning force and the like caused by the clusters of the bristles in the subsequent cleaning process cannot be avoided, and the cleaning effect is poor. In the application, a plurality of second comb teeth and a plurality of first comb teeth are distributed in a staggered way, a first tip is formed at the intersection of a windward surface and the first top, a second tip is formed at the intersection of a leeward surface and the first top, the first tip is closer to the rolling brush than the second tip, so that the first tip can penetrate into the deep part of the bristles of the rolling brush for the first time, the windward surface can peel off the windings from the rolling brush by preventing the windings from continuing to rotate along with the rolling brush, the first tip can concentrate the puncture force on a small area, and the pressure is equal to the pressure applied to a unit area according to the definition of the pressure, so that the pressure applied to an object is larger when the area of the tip is smaller, the first tip can easily puncture the windings; in addition, when penetrating the winding thing group, also reduced the area of contact when contacting with the winding thing group, area of contact's reduction also leads to the reduction of puncture frictional force, also can make the winding thing group of easier penetration of first pointed end, finally makes the winding thing group of easier invasion of first broach to play the effect of puncture winding thing group, accelerate winding thing group dispersion. And the second comb teeth staggered with the first comb teeth can collide with the bristle clusters of the clusters, so that the bristle clusters of the clusters can be dispersed along the transverse direction after being impacted, and the bristle clusters of the clusters are dispersed to be in a uniform fluffy state, so that the rolling brush can be quickly restored to an optimal cleaning state. Finally, the cleaning effect of cleaning the large winding material groups of the rolling brush is improved, the problems of missing sweeping, missing cleaning, low cleaning force and the like caused by the clusters of the bristle clusters in the subsequent cleaning process are avoided, the cleaning effect is improved, and the user experience is also improved.

Drawings

The technical solution and other advantageous effects of the present application will be made apparent by the following detailed description of the specific embodiments of the present application with reference to the accompanying drawings.

FIG. 1 is a perspective view of a surface cleaner provided in accordance with an embodiment of the present application at a first viewing angle;

FIG. 2 is a perspective view of a surface cleaner according to an embodiment of the present application at another perspective;

FIG. 3 is a bottom view of a wrap cleaning assembly provided in accordance with an embodiment of the present application;

FIG. 4 is a perspective view of a wrap cleaning assembly provided in accordance with an embodiment of the present application;

FIG. 5 is a perspective view of a wrap cleaning assembly provided in accordance with another embodiment of the present application;

FIG. 6 is a rear view of a wrap cleaning assembly provided in accordance with an embodiment of the present application;

FIG. 7 is a cross-sectional view of a wrap cleaning assembly provided in accordance with an embodiment of the present application;

FIG. 8 is a perspective view of a cleaning assembly provided in accordance with an embodiment of the present application;

FIG. 9 is a perspective view of a first comb provided in accordance with an embodiment of the present application;

FIG. 10 is a front view of a first comb provided in accordance with an embodiment of the present application;

FIG. 11 is a bottom view of a first comb provided in accordance with an embodiment of the present application;

FIG. 12 is a perspective view of a second comb provided in accordance with an embodiment of the present application;

FIG. 13 is a front view of a second comb provided in accordance with an embodiment of the present application;

FIG. 14 is a bottom view of a second comb provided in accordance with an embodiment of the present application;

Fig. 15 is a perspective view of a roller brush in a cleaning assembly according to an embodiment of the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. It will be apparent that the described embodiments are only some, but not all, embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

In the description of the present application, it should be noted that, unless explicitly specified and defined otherwise, the term "and/or" herein is merely an association relationship describing associated objects, and means that three relationships may exist, for example, a and/or B may mean: a exists alone, A and B exist together, and B exists alone. The character "/" herein generally indicates that the associated object is an "or" relationship unless otherwise specified.

When the surface cleaners such as dust collectors, floor sweeping robots and sweeping and mopping robots are used for cleaning, filament-shaped windings such as hair, animal hair and cotton wool are commonly wound on the rolling brush, the windings are very difficult to clean once wound on the rolling brush, dust collection openings are often unpredictably blocked by the windings in the existing surface cleaners, a user has to interrupt the currently executed cleaning task to disassemble and clean, great inconvenience is brought to daily use of the user, and user experience is seriously affected. Although the existing technology of cutting and removing hairs (such as the Chinese patent with publication number of CN 112956945B) can clean the windings of similar hairs and hairs on the rolling brush, the cluster is also generated by the gathering force applied by the aggregation of the windings, if the clusters cannot be timely opened and restored to a state of uniform fluffy distribution, even if the windings on the rolling brush are cleaned very cleanly, the problems of missed cleaning, low cleaning force and the like caused by the clusters of the clusters still cannot be avoided in the subsequent cleaning process, so that the cleaning effect is poor.

In order to solve the above problems, an aspect of the present application provides a wrap cleaning assembly 2, wherein fig. 1 and 2 show a surface cleaner having the wrap cleaning assembly 2, in particular, the surface cleaner is a sweeping robot, fig. 3 shows a bottom view of the wrap cleaning assembly 2, and fig. 4 and 5 show perspective views of the wrap cleaning assembly 2. Referring to fig. 1-6, the wrap cleaning assembly 2 may include:

A housing 21, wherein a rolling brush cavity 211 for accommodating the rolling brush 6 is formed in the housing 21, and a dust collection opening 212 is formed in one side of the rolling brush cavity 211;

And a first comb tooth group and a second comb tooth group which are sequentially arranged on the inner wall of the rolling brush cavity 211 along the advancing direction A of the rolling brush cavity 211, wherein the first comb tooth group is adjacent to the dust collection port 212;

Wherein the first comb teeth group comprises a plurality of first comb teeth 22, and the plurality of first comb teeth 22 are arranged on the inner wall of the rolling brush cavity 211 at intervals along the transverse direction B of the rolling brush cavity 211; the second comb teeth group comprises a plurality of second comb teeth 23, and the plurality of second comb teeth 23 are arranged on the inner wall of the rolling brush cavity 211 at intervals along the transverse direction B of the rolling brush cavity 211; in the transverse direction B, the plurality of second comb teeth 23 and the plurality of first comb teeth 22 are staggered; the first comb teeth 22 have:

The first top 225 and the first root 223 opposite to each other, the first root 223 being connected to the inner wall of the rolling brush chamber 211;

a windward side 221 and a leeward side 222 opposite to each other, the windward side 221 facing the dust collection port 212;

Wherein, the intersection of the windward side 221 and the first top 225 forms a first tip 226, the intersection of the leeward side 222 and the first top 225 forms a second tip 227, the first tip 226 is closer to the rolling brush 6 than the second tip 227, and the rotating speed of the rolling brush 6 is more than 1130 rpm and less than 1600 rpm in the working state of cleaning the winding.

The outer surface of the roller brush 6 typically carries agitation members having a plurality of bristles, such as the first agitation members 62 in the embodiment shown in fig. 8, which extend along a generally helical path along the outer surface of the shaft 61 of the roller brush 6. In this particular embodiment, the shaft 61 carries 2 first agitation members 62,2 first agitation members 62 circumferentially spaced apart at an angle of 180 °, it being understood that the shaft 61 may carry more or fewer first agitation members 62, such as 4, or 1, as desired, and that even spacing is not necessary, and that the first agitation members 62 may also be unevenly spaced about the outer surface of the shaft 61, as desired. In the embodiment shown in fig. 8, each first agitating member 62 comprises a plurality of bristle tufts comprising a plurality of bristles, and adjacent bristle tufts are closely adjacent to each other such that the bristles of the same first agitating member 62 are uniformly spaced apart, each bristle tuft may comprise about 80 to 200 bristles, each bristle tuft has a diameter in the range of 1.5 to 5mm, and each bristle tuft has a diameter in the range of 100 to 300 μm, and it should be understood that only 1 bristle tuft may be included in each first agitating member 62, in other words, the length of the bristle tuft is the entire length of the first agitating member 62. The present application is not limited in the number of bristle tufts so long as the bristles of the same first agitating member 62 are evenly spaced apart from one another. The bristles may be made of metallic materials, graphite materials, static dissipative materials, or other composite materials such as carbon fiber materials.

In the task of cleaning a surface to be cleaned, such as a floor surface, a floor tile surface, a carpet surface, etc., as the roller brush 6 rotates continuously and time passes, filament-shaped windings such as hair, animal hair, cotton wool, etc. gather clusters on the peripheral surface of the roller brush 6 (i.e. the tips of the bristles or between the bristles), so that the bristles also gather into large winding clusters with a diameter exceeding 2cm, and finally, the conventional surface cleaner only considers how to clean the windings, but does not consider how to quickly recover the winding clusters to a uniformly distributed state, and even if the winding on the roller brush 6 is cleaned very cleanly when the roller brush 6 is at a high rotation speed, the bristles of the cleaned winding cannot be guaranteed to quickly recover to a uniformly distributed fluffy state before the next cleaning (e.g. before the next contact with the surface to be cleaned), and the situation appears more remarkable when the roller brush 6 rotates at a high rotation speed (e.g. higher than 2 cm), so that the cleaning effect of the bristles cannot be avoided, and the problem of poor cleaning performance cannot be caused by the subsequent cleaning of the winding clusters. In the present application, the plurality of second comb teeth 23 and the plurality of first comb teeth 22 are staggered, the intersection of the windward side 221 and the first top 225 forms a first tip 226, the intersection of the leeward side 222 and the first top 225 forms a second tip 227, the first tip 226 is closer to the rolling brush 6 than the second tip 227, so that the first tip 226 can penetrate into the depth of the bristles of the rolling brush for the first time, the windward side 221 can peel the windings from the rolling brush 6 by blocking the windings from continuing to rotate with the rolling brush 6, and the first tip 226 can concentrate the penetration force on a small area, the magnitude of the pressure is equal to the pressure exerted on a unit area according to the definition of the pressure, so that when the area of the first tip 226 is smaller, the pressure exerted on the object is larger, and the first tip 226 can easily penetrate into the windings; in addition, when the first tip 226 pierces the winding mass, the contact area with the winding mass is reduced, and the reduction of the contact area also reduces the piercing friction force, so that the first tip 226 pierces the winding mass more easily, and finally the first comb teeth 22 invade the winding mass more easily, thereby playing the roles of piercing the winding mass and accelerating the dispersion of the winding mass. And the second comb teeth 23 staggered with the first comb teeth 22 can collide with the bristle clusters of the clusters, so that the bristle clusters of the clusters can be dispersed along the transverse direction B after being impacted, and the bristle clusters of the clusters are dispersed to be in a uniform fluffy state, so that the rolling brush can be quickly restored to an optimal cleaning state. Finally, the cleaning effect of cleaning the large winding material groups of the rolling brush is improved, the problems of missing sweeping, missing cleaning, low cleaning force and the like caused by the clusters of the bristles in the next cleaning process are avoided, the cleaning effect is improved, and the user experience is improved.

Specifically, the rotation speed of the roller brush 6 may be any value of 1120 rpm, 1200 rpm, 1260 rpm, 1320 rpm, 1400 rpm, 1580 rpm or a range between any two thereof.

The working state of removing the winding material may be a state in which the rolling brush 6 is wound with the winding material while the surface cleaner is working, and the working state of the surface cleaner may be a state in which only the winding material removing operation is performed, for example, the rolling brush rotates in cooperation with the comb teeth to remove the winding material in a state in which the surface cleaner is moved away from the cleaning surface. The cleaning work and the winding-removing work can be performed simultaneously. In short, as long as the rolling brush is wound with a winding such as hair clusters and the rolling brush is rotating, it can be regarded as an operating state in which the winding is removed.

The rotational speed of the rolling brush of the conventional surface cleaner (such as a cleaning robot) is usually about 900-1000 rpm, but in this example, the rotational speed of the rolling brush is set to be greater than 1120 rpm, so that the impact force of the comb teeth on the windings, especially the hair clusters, can be improved, and the hair clusters can be combed between the comb teeth more intensively, so that the friction force, stress of the comb teeth and suction force of the dust suction opening can be further utilized to separate the hair clusters from the rolling brush, and the impact force can also generate the effect of separating the hair clusters from the rolling brush. The rolling brush rotating speed is not reduced below the normal working rotating speed due to the resistance generated by the interference of the comb teeth and the rolling brush bristles. The rotating speed of the rolling brush is less than 1600 revolutions per minute, so that dust can not be generated due to the fact that the rotating speed is too high, and normal work is not affected. In the dehairing state, the rolling brush rotates at the rotating speed within the range, so that the dehairing effect is improved, and the normal cleaning effect of the cleaning assembly is not influenced.

In the present application, the "uniform fluffy state" means that the distance between the bristles on each of the first stirring members 62 is substantially the same, for example, the bristle interval distribution may be defined as "uniform fluffy state" in the vicinity of 0.3mm to 2mm, and the bristle interval is defined as "non-uniform fluffy state" if it exceeds the above range by more than 3 to 10 times.

In the present application, the "next cleaning" refers to the cleaning action of the bristles on the surface to be cleaned as the rolling brush 6 continues to rotate after the bristles are cleaned by the first comb teeth 22, and the "cleaning action" may be scraping, sweeping or beating, or may be a combination of at least two actions of scraping, sweeping and beating.

It is further found that the windings cleaned by the windward side 221 are easily attached to the circumferential side surfaces between the windward side 221 and the leeward side 222, for example, the first side 224 and the second side 228 extending between the first top 225, the first root 223, the windward side 221 and the leeward side 222 as shown in fig. 9 and 11, so that the windings are not easily cleaned from the first comb teeth 22 by negative pressure suction, and therefore, the thickness of the first comb teeth 22 in the transverse direction B is designed to gradually reduce along the direction from the windward side 221 to the leeward side 222, so that the area of the windward side 221 is larger than the area of the leeward side 222, and the windings cleaned by the windward side 221 are not easily contacted with the first side 224 and the second side 228, thereby greatly reducing the probability of attaching the windings to the first side 224 and the second side 228 and further improving the cleaning efficiency and success rate of the windings; in addition, the thickness of the first comb teeth 22 in the lateral direction B is designed to be gradually reduced in the direction from the windward side 221 to the leeward side 222, and also helps the fluff from which the entanglement is peeled to be more easily restored to the original upright direction (i.e., the direction extending in the radial direction of the roll brush 6), thereby helping the fluff to be restored to a uniform fluffy state. Specifically, the included angle between the first side 224 and the second side 228 and the advancing direction a may be 15 ° to 60 °, and in the embodiment shown in fig. 11, the included angle is 15 °.

It has further been found that the windings cleaned by the windward 221 are easily pulled by other windings not stripped from the bristles to slip off the windward, resulting in failure of the windings to strip from the bristles and hence a low success rate and efficiency of the windings cleaning, for which reason, in the embodiment shown in fig. 10, the windward 221 is generally designed to be perpendicular to the surface to be cleaned (direction C in fig. 10); in some alternative embodiments, the windward side 221 is a concave surface recessed towards the leeward side 222, so that the peeled winding can be continuously captured by the concave surface and is not easy to slip, and finally is sucked away by the dust collection port 212 for cleaning, thereby further improving the success rate and cleaning efficiency of winding cleaning; in other alternative embodiments, the windward side 221 is designed to be inclined towards the suction opening 212, so that the windings cleaned by the windward side 221 slide more easily towards the first root 223 of the first comb 22 than towards the first tip 226, in order to prevent the windward side 221 from breaking off due to too large an inclination, in some embodiments in the direction of 5 ° -10 ° from the vertical direction C.

It has further been found that if the sharpness of the first tip 226 is emphasized, irrespective of the life and durability of the first comb teeth 22, the first comb teeth 22 are liable to be broken prematurely, and in view of this, the thickness of the first comb teeth 22 in the lateral direction B is designed to be gradually reduced in the direction from the first root 223 to the first tip 225 so that the first comb teeth 22 are wedge-shaped, thereby making the first tip 226 maintain its sharpness while making the change in the cross-sectional dimension of the first comb teeth 22 smooth, improving the life and durability of the first comb teeth 22; in addition, by adopting the wedge-shaped structure, the first comb teeth 22 can be prevented from exerting excessive pressing force on the root parts of the bristles, so that the bristles are broken in the process of stripping the windings, and the service life of the rolling brush 6 is prolonged.

However, the double comb structure is more likely to cause the problem that the hair clusters are broken when not stripped from the roller brush, and the broken hair can continue to be wound on the roller brush, so that the wound can not be cleaned from the roller brush efficiently.

To further prevent the peeled wrap from reattaching to other surfaces of the first comb teeth 22, the first tip 225 has a relief surface 2251 recessed toward the first root 223.

In order to break up the bristles from which the windings have been peeled off so that the bristles can return to a uniform fluffy state in order to promote the next cleaning rate, the second comb teeth 23 have:

A second top 235 and a second root 233 opposite to each other, the second root 233 being connected to an inner wall of the rolling brush chamber 211;

A front combing surface 231 and a rear combing surface 232 opposite to each other, the front combing surface 231 facing the dust suction port 212;

Wherein the thickness of the second comb teeth 23 in the lateral direction B is tapered in a direction from the second root 233 to the second tip 235 such that the second comb teeth 23 are wedge-shaped. The wedge-shaped design increases the efficiency of the insertion of the second comb teeth 23 into the bristle tufts and thus breaks up the bristle tufts quickly. In addition, the wedge-shaped structure also enables the thickness of the second comb teeth 23 in the lateral direction B to smoothly transition in the direction from the second root 233 to the second tip 235, contributing to an improvement in the life and durability of the second comb teeth 23.

Referring to fig. 14, in this embodiment, the orthographic projection of the second tip 235 on the inner wall of the roll brush cavity 211 is located within the orthographic projection of the second root 233 on the inner wall of the roll brush cavity 211. The adoption of the structure is equivalent to further reducing the cross-sectional area of the second top 235, which is beneficial to further improving the efficiency of inserting the second comb teeth 23 into the bristle clusters, and reducing the contact time between the bristle clusters and the second comb teeth 23, thereby preventing larger noise generated in the process of scattering the bristle clusters and being beneficial to improving the use experience of users.

Referring again to fig. 14, to prevent damage to the bristles during the breaking of the bristle tufts by the second comb teeth 23, a first rounded transition surface 2351 is provided between the second top 235 and the front comb surface 231, and a second rounded transition surface 2352 is provided between the second top 235 and the rear comb surface 232.

Referring to fig. 12 and 13, the second top 235 is substantially parallel to the second root 233, so that the bristle tufts can uniformly scratch the second comb teeth, thereby further improving the efficiency of recovering the scattered bristle tufts to a uniform fluffy state.

Referring to fig. 7, the maximum distance between the first crest 225 and the first root 223 is h1, the minimum distance between the first crest 225 and the first root 223 is h2, and the distance between the second crest 235 and the second root 233 is h3, and then: h3 is more than or equal to h2 and less than h1. This is because the cluster depth of the bristles is not greater than the wrap-around and bristle wrap-around depth, in other words, the bristles are relatively prone to cluster near the tips of the bristles, so that the second comb teeth 23 do not need to interfere too deeply with the bristles to break up the bristles, and in addition, the second comb teeth 23 are relatively short, and breakage of the bristle roots due to too much interference of the second comb teeth 23 with the bristles is prevented, thereby prolonging the service life of the roller brush 6. In some alternative embodiments, h1 and h2 satisfy the relationship: h1, h2=1.5 to 3. In the embodiment shown in fig. 7, h1:h2=1.5, and h3=h2. It will be appreciated that h1:h2 may be any value or range between any two of 1.7, 1.9, 2.2, 2.5, 2.7, 3.

As shown in fig. 10, if the angle of the first tip 226 is too small, the first tip 226 is easy to break, so that the subsequent cleaning effect of the winding is affected, if the angle of the first tip 226 is too large, the first tip 226 is difficult to pierce and break up the winding, so that the winding is insufficiently cleaned and the cleaning efficiency is low, therefore, the angle of the first tip 226 is set to 15 ° -45 °, and if the angle of the second tip 227 is designed to be too small, the second tip 227 is easy to contact with the bristle clusters too early, so that the broken bristle clusters are attached to other surfaces of the second comb teeth, so that the winding is difficult to suck and clean, and the angle of the second tip 227 is 115 ° -135 °. In the embodiment shown in fig. 10, the angular extent of the first tip 226 is 30 ° and the angular extent of the second tip 227 is 125 °. It is understood that the angular size of the first tip 226 may be any value or range between any two of 15 °, 17 °, 20 °, 25 °, 27 °, 33 °, 35 °, 40 °, 43 °, 45 °. The angular size of the second tip 227 may be any value or range between any two of 115 °, 117 °, 120 °, 127 °, 130 °, 133 °, 135 °.

In the embodiment shown in fig. 3 and 4, the advancing direction a is perpendicular to the transverse direction B. While in other embodiments the advancing direction a may be arranged obliquely to the transverse direction B.

In order to reduce the noise generated by the second teeth 23 breaking up bristle tufts, in the embodiment shown in fig. 3, in the forward direction a, the projection of each second tooth 23 coincides with the projection of the corresponding one of the first teeth 22 nearest to that second tooth 23. With this structural design, the front combing surface 231 of the second comb teeth 23 is blocked by the first comb teeth 22 in the advancing direction a, which is equivalent to reducing the interference surface of the second comb teeth 23 and the bristle clusters in a phase-changing manner, thereby reducing noise generated when the second comb teeth break up the bristles. It has been further found that, when a part of the windings which are not stripped by the first comb teeth 22 are stripped by the second comb teeth 23 and wound on the second comb teeth 23, and the windings are separated from the second comb teeth 23 due to the influence of negative pressure, the windings are scattered and spread, and the first comb teeth 22 staggered with the second comb teeth 23 at this time can prevent the windings from being sucked by the dust suction openings, and long time the windings are reversely wound and stacked on the first comb teeth 22, thereby causing the problem of blockage of the dust suction openings 212 and reducing suction force and cleaning effect, and in the advancing direction A, the projection of each second comb teeth 23 is overlapped with the projection part of the corresponding first comb teeth 22 nearest to the second comb teeth 23, so that the windings which are stripped by the second comb teeth are prevented from being completely wound on the second comb teeth, thereby facilitating the separation of the windings attached to the second comb teeth 23, and further increasing the probability of the projection of each second comb teeth 23 and the projection part of the corresponding second comb teeth 22 which are overlapped with the second comb teeth 23, thereby further increasing the probability of the winding of the second comb teeth 22 from being wound on the second comb teeth 23.

Further, the distance between the top ends of the adjacent two first comb teeth 22 is more than 5 mm and less than 11 mm, and the distance between the adjacent two second comb teeth 23 is more than 5 mm and less than 10 mm; the distance between the tip of the first comb teeth 22 and the tip of the second comb teeth 23 nearest to the first comb teeth 22 is greater than 11 mm and less than 30 mm, and the shortest distance between the first comb teeth set and the dust collection opening 212 is greater than or equal to 0 mm and less than 30 mm.

The plurality of second comb teeth 23 may be arranged at equal intervals or at unequal intervals. However, the spacing between adjacent second comb teeth 23 is kept within a range of more than 5 mm and less than 10 mm, for example, 6 mm, 8 mm, 9 mm, 8.1 mm, 8.5 mm, etc., but not exceeding the range. In the present cleaning scene, especially in the household cleaning environment, due to the fashion pursuit of people, many hairs are curved long hairs and are easy to wind, and many long hairs are dyed and scalded, the hairs are dry, and the hairs are easy to absorb and gather mutually, so that windings such as hair clusters are formed due to winding and absorption and gathering. The hair cluster is generally thick, if the distance between the second comb teeth 23 is too small, the hair cluster cannot be combed between the comb teeth, which may cause the hair cluster to be wound around the comb teeth after being pressed, and in severe cases, may cause the rolling brush to stop. The spacing of the second comb teeth 23 is thus larger than 5 mm, typically larger than the width of the hair clusters, to ensure that the hair clusters are combed between the teeth as much as possible in order to further disengage the hair clusters from the roller brush. However, since the hair clusters have high toughness and the adsorption force is increased due to static electricity generated by drying, if the interval of the second comb teeth 23 is too large, the friction force against the hair clusters may be too small, and thus the hair clusters cannot be separated from the roller brush. By ensuring that the spacing between the second comb teeth 23 is smaller than 10 mm, the friction force of the comb teeth on two sides of the hair cluster to the hair cluster can be increased as much as possible, and the possibility of separating the hair cluster from the roller brush can be further increased by combining the dragging force of the comb teeth, so that the hair removing effect is improved.

For the case that the thicknesses of the upper and lower second comb teeth 23 are not uniform, the pitch of the adjacent second comb teeth 23 may generally refer to the pitch d1 between the tips of the adjacent second comb teeth, and of course, in other embodiments of the present application, the pitch of the bottom or the middle of the comb teeth may be used as the pitch of the two.

In the length direction of the rolling brush cavity, a plurality of first comb teeth and a plurality of second comb teeth are distributed in a staggered mode, the distance between the top end of each first comb tooth and the top end of the nearest second comb tooth from the first comb tooth is more than 11 mm and less than 30 mm, and the shortest distance between the first comb tooth group and the dust collection opening is more than or equal to 0 and less than 30 mm;

wherein, the first comb teeth group is arranged between the second comb teeth group and the dust collection opening 212, and the rolling brush 6 can rotate along the direction from the dust collection opening 212 to the first comb teeth group and then to the second comb teeth group in the rotating process, and passes through the first comb teeth 22 and then passes through the second comb teeth 23.

The plurality of first comb teeth 22 may be arranged at equal intervals or at unequal intervals. However, the spacing between adjacent first teeth 22 is maintained within a range of greater than 5 mm and less than 10 mm, for example, 6 mm, 8 mm, 9 mm, 8.1 mm, 8.5 mm, 10 mm, 10.5 mm, etc., but does not exceed the above range.

For the case where the upper and lower thicknesses of the first comb teeth are not uniform, the pitch of the adjacent first comb teeth may generally refer to the pitch d2 between the tips (tooth tips) of the adjacent first comb teeth. Of course, in other embodiments of the present application, the space between the bottoms of the comb teeth or the space between the middle portions may be used as the space between the bottoms of the comb teeth and the middle portions.

Also, for thicker windings such as hair clusters, if the first comb tooth space is too small, the hair clusters cannot be combed between the comb teeth, which may cause the hair clusters to be wound around the comb teeth after being squeezed, and in severe cases, may cause the rolling brush to stall. The spacing of the first comb teeth is thus greater than 5 mm, typically greater than the width of the hair clusters, to ensure that the hair clusters are combed between the comb teeth as much as possible, in order to further disengage the hair clusters from the roller brush. However, since the hair cluster has high toughness and the adsorption force is increased due to static electricity generated by drying, if the interval of the first comb teeth is too large, the friction force to the hair cluster may be too small, and thus the hair cluster cannot be separated from the roller brush. By ensuring that the distance between the first comb teeth is smaller than 11 mm, the friction force of the comb teeth on two sides of the hair cluster to the hair cluster can be increased as much as possible, and the possibility of separating the hair cluster from the rolling brush can be increased by combining the dragging force of the comb teeth, so that the hair removing effect is improved. In combination with the spacing arrangement of the second comb teeth 23, the hair cluster can be combed twice and rubbed twice, and the effect of removing the entanglement can be further improved.

Referring to fig. 4 and 8, in a second aspect, embodiments of the present application also disclose a cleaning assembly, which may include:

a roller brush 6, the roller brush 6 having a plurality of bristles protruding radially outwardly therefrom;

and a wrap cleaning assembly 2 according to any of the first aspect,

Wherein the rolling brush 6 is rotatably installed in the rolling brush cavity 211, and the rotation axis X of the rolling brush 6 is parallel to the transverse direction B; during rotation of the roller brush 6, the bristles can interfere with the first and second sets of teeth in sequence. Thus, in the task of cleaning the surface to be cleaned, such as floor surface, floor tile surface, carpet surface, etc., as the rolling brush 6 rotates continuously and time passes, the filament-like windings such as hair, animal hair, cotton wool, etc. gather clusters on the peripheral surface of the rolling brush 6 (i.e. the tips of the bristles or between the bristles), so that the bristles also gather into clusters, and finally form large windings with a diameter exceeding 2cm, and the conventional surface cleaner only considers how to clean the windings, but does not consider how to quickly recover the windings to a uniformly distributed state, which causes the windings on the rolling brush 6 to be cleaned even if the windings on the rolling brush 6 are cleaned, however, it cannot be guaranteed that the bristles after being cleaned up of the windings are quickly returned to a uniformly distributed fluffy state before the next cleaning (e.g., before the next contact with the surface to be cleaned), which is more remarkable when the rolling brush 6 is at a high revolution (e.g., the revolution is higher than 1120 rpm), and the problems of missed cleaning, low cleaning force, etc. caused by clusters of bristles during the subsequent cleaning process cannot be avoided, so that the cleaning effect is poor. In the present application, the plurality of second comb teeth 23 and the plurality of first comb teeth 22 are staggered, the intersection of the windward side 221 and the first top 225 forms a first tip 226, the intersection of the leeward side 222 and the first top 225 forms a second tip 227, the first tip 226 is closer to the rolling brush 6 than the second tip 227, so that the first tip 226 can penetrate deep into the bristle of the rolling brush for the first time, the windward side 221 peels the winding from the rolling brush 6 by blocking the winding from continuing to rotate along with the rolling brush 6, and the first tip 226 can concentrate the penetration force on a small area, the pressure is equal in magnitude to the pressure applied per unit area by definition, so that the smaller the area of the first tip 226, the greater the pressure applied to the object, which enables the first tip 226 to easily penetrate the wound mass; in addition, when the first tip 226 pierces the winding mass, the contact area with the winding mass is reduced, and the reduction of the contact area also reduces the piercing friction force, so that the first tip 226 pierces the winding mass more easily, and finally the first comb teeth 22 invade the winding mass more easily, thereby playing the roles of piercing the winding mass and accelerating the dispersion of the winding mass. And the second comb teeth 23 staggered with the first comb teeth 22 can collide with the bristle clusters of the clusters, so that the bristle clusters of the clusters can be dispersed along the transverse direction B after being impacted, and the bristle clusters of the clusters are dispersed to be in a uniform fluffy state, so that the rolling brush can be quickly restored to an optimal cleaning state. Finally, the cleaning effect of cleaning the large winding material groups of the rolling brush is improved, the problems of missing sweeping, missing cleaning, low cleaning force and the like caused by the clusters of the bristles in the next cleaning process are avoided, the cleaning effect is improved, and the user experience is improved.

In the embodiment shown in fig. 15, the roll brush 6 includes:

A rod 61 detachably rotatably connected to the rolling brush chamber 211;

And a plurality of first stirring members 62, each first stirring member 62 comprising a plurality of bristles, the first stirring members 62 extending helically around the shaft 61 on the circumferential outer surface of the shaft 61;

Wherein the first stirring member 62 includes a first spiral portion 621 extending in a first spiral direction S1, and a second spiral portion 622 extending in a second spiral direction S2; the first spiral direction S1 and the second spiral direction S2 are opposite to each other, so that the first spiral portion 621 and the second spiral portion 622 intersect to form a V-shaped first double-spiral structure. Referring to fig. 8 again, since the rolling brush 6 is formed with the V-shaped first double-helix structure, the bristles on the same first stirring member 62 do not interfere with the first comb teeth 22 at the same time, and in the rotation process of the rolling brush 6, gaps 65 which become smaller from large to small and disappear from small are periodically formed between the bristles and the second comb teeth 23, and the combed wound mass in the gaps 65 is gathered at the gaps 65 and is timely sucked away, so that the cleaning efficiency of the wound mass is further improved. Relatively speaking, compared with the traditional unidirectional spiral rolling brush, the unidirectional spiral rolling brush lacks the gathering structure, and the unidirectional spiral tangential component force of the unidirectional spiral rolling brush easily enables the winding objects to be pushed to dead angles of the rolling brush cavity 211, so that the winding objects are easily clamped at two ends of the rolling brush 6, air duct blockage and air pressure reduction are caused for a long time, the cleaning effect is affected, and a user has to frequently disassemble the rolling brush to remove the hairs, so that the use experience is poor.

Referring to fig. 15, in some embodiments, the first spiral 621 intersects the second spiral 622 at a central location C of the body 61. Therefore, the notch 65 is formed near the center position C of the rod body 61, and the negative pressure at the center negative pressure of the dust collection opening 212 is maximum, so that the windings gathered near the center position C are more easily and timely pumped away, and the winding cleaning efficiency is further improved.

Referring again to fig. 15, the first spiral portion 621 extends in a first spiral direction S1 from the first end 611 of the rod 61 toward the center position C, and the second spiral portion 622 extends in a second spiral direction S2 from the second end 612 of the rod 61 toward the center position C. Wherein, the first spiral direction S1 is opposite to the second spiral direction S2, and the deflection angles are the same. That is, the first spiral portion 621 and the second spiral portion 622 deflect the first stirring member 62 by 45 ° to 180 °. For example, in the embodiment shown in fig. 15, the first spiral 621 deflects the first stirring member 62 90 ° clockwise, while the second spiral 622 deflects the first stirring member 62 90 ° counterclockwise.

Referring to fig. 5, the cleaning assembly further includes a converging duct 24, the converging duct 24 including: a pair of opposite interfaces 241 and a wind gathering mouth 242, and a diversion wall 243 extending between the pair of interfaces 241 and the wind gathering mouth 242; wherein, the butt joint mouth 241 is in fit butt joint with the dust collection mouth 212, and the cross section area of the air collection mouth 242 is smaller than the cross section area of the dust collection mouth 212. In the preferred embodiment the centre of the tuyere 242 is aligned with the centre position C of the rod body 61. As further described by taking the embodiment shown in fig. 8 as an example, the first spiral portion 621 and the second spiral portion 622 intersect at the center position C to form a V-shaped tip 623, and the V-shaped tip 623 points to the center of the air gathering port 242, so that during the rotation of the rolling brush 6, the peeled windings are guided by the first spiral portion 621 and the second spiral portion 622 and the guiding effect of the air flow generated thereby, and finally the windings are gathered at the V-shaped tip 623, and the windings are more easily pumped and emptied due to the maximum negative pressure at the center of the air gathering port 242, thereby further improving the cleaning efficiency of the windings.

This configuration serves to guide the air flow from the suction port of the roll brush chamber 211 to the suction port 212 through the center position C of the roll brush 6, thereby improving the cleaning efficiency of the cleaning assembly, because the negative pressure generated by suction through the air collecting duct 24 is also transmitted to the suction port of the roll brush chamber 211 along the spiral extension directions of the first spiral portion 621 and the second spiral portion 622 over time, so that the pickup of dirt and dust particles from the surface to be cleaned becomes more uniform at the suction port of the roll brush chamber 211.

Referring again to fig. 15, the angle γ between the first spiral portion 621 and the second spiral portion 622 at the intersection is 30 ° to 100 °. In the embodiment shown in fig. 15, the angle γ is 120 °.

Further, a plurality of first stirring members 62 are provided at intervals in the circumferential direction of the rod body 61. It should be appreciated that the body 61 may carry more or less first stirring members 62, such as 4, or 1, as desired, and that even spacing is not necessary, and that the first stirring members 62 may be unevenly spaced about the outer surface of the body 61, if desired.

Referring to fig. 3 and 4, the inner wall of the rolling brush cavity 211 is substantially cylindrical, and a gap of 0mm to 3mm is formed between the first stirring member 62 and the inner wall of the rolling brush cavity 211. With this structure, when negative pressure is generated by suction through the air collecting pipe 24, the first stirring member 62 and the inner wall of the rolling brush cavity 211 can maintain a good negative pressure environment, thereby further improving the capability of sucking dirt particles and windings raised by the beating dirt or dust sucked by the first stirring member 62, and further improving the cleaning efficiency.

Referring again to fig. 15, the roll brush 6 further includes:

A plurality of second stirring members 63, the second stirring members 63 extending spirally around the rod body 61 on the circumferential outer surface of the rod body 61;

Wherein the second stirring member 63 includes a third spiral portion 631 extending in a third spiral direction S3 and a fourth spiral portion 632 extending in a fourth spiral direction S4; the third spiral direction S3 and the fourth spiral direction S4 are opposite to each other, so that the third spiral portion 631 and the fourth spiral portion 632 intersect to form a V-shaped second double spiral structure.

Further, the third spiral portion 631 and the fourth spiral portion 632 intersect at the center position C of the rod 61.

Further, the third spiral portion 631 extends in the third spiral direction S3 from the first end 611 of the rod 61 toward the center position C, and the fourth spiral portion 632 extends in the fourth spiral direction S4 from the second end 612 of the rod 61 toward the center position C.

Further, in some preferred embodiments, the first stirring member 62 extends radially outwardly from the shaft 61 to a greater extent than the second stirring member 63 extends radially outwardly from the shaft 61. When the cleaning assembly is placed on the surface to be cleaned of a carpet, part of the bristles of the first stirring member 62 are immersed into the pile of the carpet, so that the first stirring member 62 can form a negative pressure space with the carpet, and the second stirring member 63 is combined with the upper part in the pile of the carpet, so that the second stirring member 63 is responsible for beating the carpet to lift dust during the rotation process of the rolling brush, and the first stirring member 62 is responsible for forming a negative pressure space with the carpet, thereby facilitating the suction and removal of the lifted dust, and improving the cleaning efficiency.

In a preferred embodiment, both the third spiral portion 631 and the fourth spiral portion 632 deflect the second stirring element 63 45 ° to 180 °. For example, in the embodiment shown in fig. 15, the third spiral portion 631 deflects the second stirring element 63 clockwise by 90 ° and the fourth spiral portion 632 deflects the second stirring element 63 counterclockwise by 90 °.

In a preferred embodiment, the inner wall of the roller brush cavity 211 is substantially cylindrical, and a gap of 1mm to 5mm is provided between the second stirring member 63 and the inner wall of the roller brush cavity 211.

Further, the interference between the first comb teeth 22 and the bristles is g1, the interference between the second comb teeth 23 and the bristles is g2, and g1 > g2. In some embodiments, the difference between the interference amounts of the first and second comb teeth 22, 23 with the bristles satisfies the relationship: 0mm < g1-g2 < 5mm. For example, in the embodiment shown in fig. 7, g1—g2=4.5 mm.

In a third aspect, referring to fig. 1 and 2, the application also discloses a surface cleaner comprising a wrap cleaning assembly 2 according to any one of the first aspect or comprising a cleaning assembly according to any one of the second aspect, further comprising a machine body 1, two drive wheels 3 and a steering wheel 5 for steering the direction at the bottom of the machine body 1, two wipers 4 at the bottom of the machine body 1, wherein the wrap cleaning assembly 2 is located near the middle of the bottom of the machine body 1, a roller brush 6 is rotatably mounted in the roller brush cavity 211, and the wipers 4 are located behind the wrap cleaning assembly 2 in the forward direction a.

The foregoing description is only a partial implementation of the embodiment of the present application, and is not intended to limit the scope of the embodiment of the present application in any way, but any simple modification, equivalent variation and modification that can be easily considered by those skilled in the art within the technical scope of the embodiment of the present application should be included in the scope of the embodiment of the present application.

Claims

1. A wrap cleaning assembly, comprising:

The dust collection device comprises a shell, a dust collection device and a dust collection device, wherein a rolling brush cavity for accommodating a rolling brush is formed in the shell;

2. The wrap cleaning assembly of claim 1, wherein a thickness of the first comb teeth in the lateral direction is of a diminishing potential along a direction from the windward side to the leeward side such that an area of the windward side is greater than an area of the leeward side.

3. The wrap cleaning assembly of claim 2, wherein the windward side is concave toward the leeward side.

4. The wrap cleaning assembly of claim 1, wherein a thickness of the first comb teeth in the transverse direction is tapered along a direction from the first root portion to the first tip portion such that the first comb teeth are wedge-shaped.

5. The wrap cleaning assembly of claim 4, wherein the first tip has a relief surface recessed toward the first root.

6. The wrap cleaning assembly of claim 1, wherein said second comb teeth have:

7. The wrap cleaning assembly of claim 6, wherein an orthographic projection of the second tip on an inner wall of the roller brush cavity is within an orthographic projection of the second root on an inner wall of the roller brush cavity.

8. The entanglement cleaning assembly of claim 7, wherein the second top portion has a first rounded transition surface with the front carding surface and a second rounded transition surface with the rear carding surface.

9. The wrap cleaning assembly of claim 6, wherein the second tip is substantially parallel to the second root.

10. The wrap cleaning assembly of claim 9, wherein a maximum distance between the first crest and the first root is h1, a minimum distance between the first crest and the first root is h2, and a distance between the second crest and the second root is h3, then: h3 is more than or equal to h2 and less than h1.

11. The wrap cleaning assembly of claim 10, wherein h1 and h2 satisfy the relationship: h1, h2=1.5 to 3.

12. The wrap cleaning component of any one of claims 1-11, wherein the first tip has an angular extent of 15 ° to 45 ° and the second tip has an angular extent of 115 ° to 135 °.

13. The wrap cleaning component of any one of claims 1-11, wherein the advance direction is perpendicular to the lateral direction.

14. The wrap cleaning component of any one of claims 1-11, wherein the first comb teeth further have:

15. A winding cleaning assembly according to any one of claims 1 to 11, wherein in said advancing direction, the projection of each of said second comb teeth coincides with the projection of the corresponding one of said first comb teeth nearest to that second comb tooth.

16. A cleaning assembly, comprising:

the wrap cleaning component of any one of claims 1-15,

17. The cleaning assembly of claim 16, wherein the roller brush comprises:

18. The cleaning assembly of claim 17, wherein the first helical portion intersects the second helical portion at a central location of the wand body.

19. The cleaning assembly of claim 18, wherein the first helical portion extends in the first helical direction from a first end of the wand toward the central location and the second helical portion extends in the second helical direction from a second end of the wand toward the central location.

20. The cleaning assembly of claim 18, further comprising a converging duct, the converging duct comprising: a pair of interfaces and a tuyere opposite each other, and a guide wall extending between the pair of interfaces and the tuyere; the air collecting port is characterized in that the opposite port is matched and butted with the dust collecting port, and the cross section area of the air collecting port is smaller than that of the dust collecting port.

21. The cleaning assembly of claim 20, wherein a center of the collection port is aligned with a center position of the wand body.

22. The cleaning assembly of claim 17, wherein the first screw and the second screw both deflect the first agitating member by 45 ° to 180 °.

23. The cleaning assembly of claim 17, wherein the first spiral portion and the second spiral portion intersect at an angle γ of 30 ° to 100 °.

24. The cleaning assembly of claim 17, wherein the plurality of first agitating members are spaced apart in a circumferential direction of the wand.

25. The cleaning assembly of claim 17, wherein the interior wall of the roller brush chamber is substantially cylindrical, and wherein a gap of 0mm to 3mm is provided between the first agitating member and the interior wall of the roller brush chamber.

26. The cleaning assembly of claim 17, wherein the roller brush further comprises:

27. The cleaning assembly of claim 26, wherein the third helical portion intersects the fourth helical portion at a central location of the wand body.

28. The cleaning assembly of claim 27, wherein the third screw extends in the third screw direction S3 from the first end of the wand towards the central position C and the fourth screw extends in the fourth screw direction S4 from the second end of the wand towards the central position C.

29. The cleaning assembly of claim 26, wherein the first agitating members extend radially outwardly from the wand to a greater extent than the second agitating members extend radially outwardly from the wand.

30. The cleaning assembly of claim 26, wherein the third screw and the fourth screw each deflect the second agitating member by 45 ° to 180 °.

31. The cleaning assembly of claim 26, wherein the interior wall of the roller brush chamber is generally cylindrical, and wherein the second agitating member has a gap of 1mm to 5mm from the interior wall of the roller brush chamber.

32. A cleaning assembly according to any one of claims 16 to 31, wherein the first comb teeth interfere with the bristles by an amount g1, the second comb teeth interfere with the bristles by an amount g2, and g1 > g2.

33. The cleaning assembly of claim 32, wherein a difference in the amount of interference of the first and second comb teeth with the bristles satisfies the relationship: 0mm < g1-g2 < 5mm.

34. A surface cleaner comprising a wrap cleaning component according to any one of claims 1 to 15 or comprising a cleaning component according to any one of claims 16 to 33.