WO2022134614A1 - Floating housing, rolling brush mechanism, dust suction assembly, dust suction system, and sweeping robot - Google Patents

Abstract

A floating housing (100), a rolling brush mechanism, a dust suction assembly (200), a dust suction system and a sweeping robot. The floating housing (100) comprises a body (10), which is provided with a rolling brush cavity (11) mounted with a rolling brush assembly, the body (10) being formed with a dust outlet (12) that communicates with the rolling brush cavity (11), wherein the size of the dust outlet (12) along the longitudinal direction thereof is L1, the size of the rolling brush cavity (11) along the longitudinal direction thereof is L, and L1 satisfies the condition: L/3<L1≤L.

Description

Floating housing, roller brush mechanism, vacuum components, vacuum systems and sweeping robots

Related applications

This application claims the priority of the Chinese patent application filed on December 24, 2020, the application number is 202011554782.5, and the title is "Floating Housing, Rolling Brush Mechanism, Vacuuming Assembly, Vacuuming System and Sweeping Robot". It is incorporated by reference in its entirety.

technical field

The present application relates to the technical field of cleaning equipment, and in particular, to a floating housing, a roller brush mechanism, a vacuum assembly, a vacuum system and a cleaning robot.

Background technique

The sweeping robot is a kind of intelligent household appliances, which can automatically complete the floor cleaning work in the room with certain artificial intelligence.

The sweeping robot collects the dust on the ground through the vacuum system. A vacuum system usually includes a roller brush mechanism, a floating connection and a dust box. The rolling brush mechanism includes a floating housing and a rolling brush assembly. The roller brush assembly is arranged in the roller brush cavity of the floating housing. The brush chamber communicates with the dust box through a floating connection. When the roller brush assembly rotates, it can drive the dust, and the dust is collected by the roller brush cavity and the floating connecting piece to the rear dust collecting box under the action of the adsorption force. However, during the dust adsorption process, there is a problem of dust residue in the traditional floating housing.

SUMMARY OF THE INVENTION

Based on this, it is necessary to provide a floating housing, a roller brush mechanism, a vacuum assembly, a vacuum system and a cleaning robot that can reduce the dust residue in the traditional floating housing in view of the problem of dust residue in the traditional floating housing.

The present application provides a floating housing, including:

The main body is provided with a rolling brush cavity for installing the rolling brush assembly, and the main body is provided with a dust outlet communicating with the rolling brush cavity;

Wherein, the size of the dust outlet along its longitudinal direction is L ₁ , the size of the rolling brush cavity along its longitudinal direction is L, and the L ₁ satisfies the condition: L/3<L ₁ ≤L.

In some embodiments, the L ₁ satisfies the condition: 0.9≦L ₁ ≦L.

In some embodiments, the longitudinal direction of the dust outlet is parallel to the longitudinal direction of the rolling brush cavity.

In some embodiments, the dust outlet is arranged symmetrically with respect to the center plane of the rolling brush cavity.

In some embodiments, the body is further provided with a dust inlet communicating with the rolling brush cavity, the dust inlet has a first centerline, and the dust outlet has a second centerline;

The first centerline and the second centerline are coplanar and intersect each other.

In some embodiments, the included angle between the first centerline and the second centerline is greater than 90 degrees and less than 180 degrees.

Another aspect of the present application further provides a rolling brush mechanism, including a rolling brush assembly and the above floating housing.

In yet another aspect of the present application, there is also provided a dust suction assembly for draining dust to a dust collecting box, wherein the dust suction assembly includes a floating connector and the above-mentioned rolling brush mechanism;

The floating connecting piece includes a transition passage, a first connection port and a second connection port communicated with opposite ends of the transition passage, the first connection port is used for connecting with the dust outlet, and the second connection port is used for connecting with the dust outlet. The port is used for connecting with the dust box.

In some embodiments, the size of the first connection port along its lengthwise direction is equal to the size of the dust outlet along its lengthwise direction, and the size of the second connection port along its lengthwise direction is L ₂ , the L ₁ and L ₂ satisfy the conditions: L ₂ <L ₁ , and 0.2L<L ₂ ≤0.5L;

The size of the dust outlet along its width direction is W ₁ , the size of the second connection port along its width direction is W ₂ , and the W ₁ and W ₂ satisfy the condition: the 0.8≤W ₁ /W ₂ ≤1.2.

In some embodiments, the cross-sectional area of the first connection port is greater than the cross-sectional area of the second connection port.

In some embodiments, the radial dimension of the transition passage gradually increases from the first connection port to the second connection port.

In some embodiments, the longitudinal direction of the second connection port is parallel to the longitudinal direction of the dust outlet.

In some embodiments, the first connection port has a first end and a second end along its lengthwise direction, the second connection port has a third end and a fourth end along its lengthwise direction, the first The end and the third end are connected to form a first connection line, the second end and the fourth end are connected to form a second connection line, and the first connection line and the second connection line are respectively located in the first connection line. Both sides of the line connecting the center of a connection port and the center of the second connection port;

Wherein, the included angle between the first connection line and the second connection line ranges from 120 degrees to 170 degrees.

In some embodiments, the included angle between the first connection line and the second connection line ranges from 150 degrees to 165 degrees.

In some embodiments, the floating connector includes two first sidewalls disposed opposite to each other along the first direction and two second sidewalls disposed oppositely along the second direction, and each of the first sidewalls is located at two between and connected to two of the second side walls, the two first side walls and the two second side walls surround and form the transition channel;

Wherein, the first side wall and the second side wall are smoothly connected in transition, and the first direction is perpendicular to the second direction.

In some embodiments, the floating connector is injection-molded to the floating housing; or

The floating connecting piece further includes a first connecting piece, the first connecting piece is arranged around the first connecting port, and the body further includes a second connecting piece, and the second connecting piece is arranged around the dust outlet ;

The dust outlet is connected to the first connection port by means of the first connection piece and the second connection piece.

In another aspect of the present application, a dust collection system is also provided, including a dust collection box and the above-mentioned dust collection assembly.

In yet another aspect of the present application, there is also provided a cleaning robot, including the above-mentioned vacuuming system.

When the dust is blocked by the inner wall of the roller brush chamber on the path from the roller brush chamber to the dust outlet, the dust is not easily absorbed to the dust outlet, which causes the dust to accumulate in the roller brush chamber, which reduces the dust removal effect. The above-mentioned floating housing, rolling brush mechanism, dust suction assembly, dust suction system and sweeping robot, when the dust is driven up by the rotation of the rolling brush assembly, and enters the rolling cavity under the action of negative pressure, due to the dust outlet The size along its longitudinal direction and the size of the roller brush cavity along its longitudinal direction satisfy L/3<L ₁ ≤L, which increases the area of the roller brush chamber covered by the dust outlet along its longitudinal direction, so it can be avoided. The dust is blocked by the inner wall of the roller brush chamber on the path from the roller brush chamber to the dust outlet, and the dust can be easily adsorbed from the roller brush chamber to the dust outlet, so the dust residue in the roller brush chamber can be reduced and the dust removal can be improved. Effect.

Description of drawings

In order to illustrate the technical solutions in the embodiments of the present disclosure more clearly, the following briefly introduces the accompanying drawings used in the description of the embodiments. Obviously, the accompanying drawings in the following description are only some embodiments of the present disclosure. For those of ordinary skill in the art, other drawings can also be obtained from these drawings without creative effort.

FIG. 1 is a schematic three-dimensional structural diagram of a dust suction assembly in an embodiment of the present application.

FIG. 2 is a schematic diagram of an exploded structure of a dust suction assembly according to an embodiment of the application.

FIG. 3 is a schematic cross-sectional structural diagram of the dust suction assembly shown in FIG. 1 .

FIG. 4 is a schematic structural diagram of the dust collecting assembly shown in FIG. 1 from another perspective.

FIG. 5 is a schematic structural diagram of the dust collecting assembly shown in FIG. 1 from another perspective.

Detailed ways

In order to make the above objects, features and advantages of the present disclosure more clearly understood, the specific embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present disclosure. However, the present disclosure can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present disclosure. Therefore, the present disclosure is not limited by the specific embodiments disclosed below.

Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which this application belongs. The terms used herein in the specification of the application are for the purpose of describing specific embodiments only, and are not intended to limit the application. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", " Back, Left, Right, Vertical, Horizontal, Top, Bottom, Inner, Outer, Clockwise, Counterclockwise, Axial , "radial", "circumferential" and other indicated orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the application and simplifying the description, rather than indicating or implying the indicated device or Elements must have a particular orientation, be constructed and operate in a particular orientation and are therefore not to be construed as limitations on this application.

In addition, the terms "first" and "second" are only used for descriptive purposes, and should not be construed as indicating or implying relative importance or implying the number of indicated technical features. Thus, a feature delimited with "first", "second" may expressly or implicitly include at least one of that feature. In the description of the present application, "plurality" means at least two, such as two, three, etc., unless expressly and specifically defined otherwise.

In this application, unless otherwise expressly specified and limited, the terms "installed", "connected", "connected", "fixed" and other terms should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection , or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between the two elements, unless otherwise specified limit. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific situations.

In this application, unless otherwise expressly stated and defined, a first feature "on" or "under" a second feature may be in direct contact with the first and second features, or the first and second features indirectly through an intermediary touch. Also, the first feature being "above", "over" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is level higher than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature has a lower level than the second feature.

It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or an intervening element may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for the purpose of illustration only and do not represent the only embodiment.

Furthermore, the figures are not drawn to a 1:1 scale and the relative dimensions of elements in the figures are drawn by way of example only and not necessarily to true scale.

Referring to FIGS. 1 to 3 , an embodiment of the present application provides a floating housing 100 , which includes a main body 10 . The main body 10 is provided with a rolling brush cavity 11 for installing a rolling brush assembly, and the main body 10 is further provided with a rolling brush cavity 11 . The connected dust outlet 12 . Specifically, the main body 10 is also provided with a dust inlet 13 (shown in FIG. 4 ) communicating with the rolling brush cavity 11 .

In the embodiment of the present application, the cleaning robot includes a rolling brush mechanism, and the rolling brush mechanism includes a floating housing 10 . Specifically, the cleaning robot further includes a casing, the casing includes a fixed casing, and the fixed casing has a floating cavity. One end of the floating connector 210 is connected to the fixed housing, and the other end is connected to the rolling brush mechanism. A rotating arm is also provided on the outside of the rolling brush mechanism. When the rolling brush mechanism encounters an obstacle, the rotating arm drives the rolling brush mechanism to compress the floating connector 210 in the floating cavity to float to avoid obstacles.

In the embodiment of the present application, the dimension of the dust outlet 12 along its longitudinal direction is L ₁ , the dimension of the roller brush cavity 11 along its longitudinal direction is L, and L ₁ satisfies the condition: L/3<L ₁ ≤L .

When the dust is blocked by the inner wall of the roller brush chamber on the path from the roller brush chamber to the dust outlet, the dust is not easily absorbed to the dust outlet, which causes the dust to accumulate in the roller brush chamber, which reduces the dust removal effect. In the embodiment of the present application, when the dust is driven up by the rotation of the rolling brush assembly and enters the rolling cavity 11 under the action of negative pressure, because the size of the dust outlet 12 along its longitudinal direction is different from that of the rolling brush The size of the cavity 11 along its longitudinal direction satisfies L/3<L ₁ ≤L, which increases the area of the rolling brush cavity 11 covered by the dust outlet 12 along its longitudinal direction, so that dust can be prevented from entering the rolling brush cavity 11 The path to the dust outlet 12 is blocked by the inner wall of the brush cavity 11 . Therefore, the floating housing 10 of the present application can easily adsorb dust from the brush cavity 11 to the dust outlet 12 , thereby reducing the dust residue in the brush cavity 11 and improving the dust removal effect.

In order to compare the dust removal effect of the prior art and the floating housing 100 of the present application, the inventors conducted the following tests in a targeted manner:

Test method: The test is carried out by means of linear dust removal. Specifically, a certain amount of dust is sprinkled in a specific area, and the specific area can be in the shape of a rectangle, so that after the object to be tested walks through the specific area in a straight line, the amount of dust vacuumed is determined, so as to determine the dust removal rate. During testing, it is necessary to provide negative pressure to the floating housing 100 to vacuum dust, and the dust needs to be collected and weighed. Therefore, a dust collecting structure and a negative pressure structure should be connected behind the floating housing 100 . The test structures and test conditions used in Example 1 and Comparative Examples 1 and 2 are the same, and the only difference is that L ₁ is different.

The test results are shown in Table 1:

Table 1

In each of the above examples and comparative examples, two sets of data were tested for reference.

It can be seen from the above test results that when L/3<L ₁ ≤L, the dust removal rate is as high as 94.00%. And when L ₁ =L/3, the dust removal rate drops significantly. As L ₁ <L/3, that is, the value of L ₁ continues to decrease, the dust removal rate continues to decrease. Therefore, the above test shows that when L/3<L ₁ ≤L is satisfied, the dust removal rate is obviously improved, and the dust collection efficiency is improved.

In an embodiment of the present application, L ₁ satisfies the condition: 0.9L≦L ₁ ≦L. Therefore, the area covered by the dust outlet 12 along the longitudinal direction of the roller brush chamber 11 is further enlarged, so that the dust can be easily absorbed from the roller brush chamber 11 to the dust outlet 12 . In some embodiments, the longitudinal direction of the dust outlet 12 is parallel to the longitudinal direction of the roller brush cavity 11 . In this way, the dust outlet 12 can cover the roller brush cavity 11 along the longitudinal direction to the maximum, and the dust suction effect is better. In other embodiments, the longitudinal direction of the dust outlet 12 and the longitudinal direction of the rolling brush cavity 11 may also be arranged at an angle, which is not limited herein.

Referring to FIG. 2 again, in order to make the dust in the brush cavity 11 evenly adsorbed to the dust outlet 12 , in some embodiments, the dust outlet 12 is arranged symmetrically with respect to the center plane of the brush cavity 11 . In this way, the dust at both ends of the roller brush cavity 11 can be adsorbed to the dust outlet 12 as much as possible, thereby reducing the dust residue.

In some embodiments, the dust inlet 13 has a first centerline, the dust outlet 12 has a second centerline, and the first centerline and the second centerline are coplanar and intersect each other. In this way, the dust can enter the roller brush cavity 11 from the dust inlet 13, and then the dust suction path discharged from the dust outlet 12 is the shortest, which improves the dust suction effect. Further, the included angle between the first center line and the second center is greater than 90 degrees and less than 180 degrees. On the one hand, the height dimension of the whole machine in the vertical direction can be reduced, and on the other hand, the dust outlet 12 is arranged closer to the dust inlet 13, so that the dust can be quickly discharged to the dust outlet after entering the roller brush cavity 11. There are 12 ports to improve the dust removal efficiency.

The present application also provides a rolling brush mechanism, including a rolling brush assembly and the above-mentioned floating housing 100 . Specifically, the rolling brush assembly is installed in the rolling brush cavity 11 of the floating housing 100 .

The present application also provides a dust suction assembly 200 for guiding dust to a dust collecting box. The dust suction assembly 200 includes the floating connecting member 210 and the above-mentioned rolling brush mechanism.

Referring to FIG. 3 again, the floating connector 210 includes a transition channel 211 and a first connection port 212 and a second connection port 213 communicating with opposite ends of the transition channel 211 . The first connection port 212 is used for connecting with the dust outlet 12, and the second connection port 213 is used for connecting with the dust collecting box. Specifically, the dust enters the roller brush cavity 11 from the dust inlet 13, and is discharged from the dust outlet 12 to the transition passage 21 through the first connection port 212 under the action of the negative pressure of the fan structure behind the dust collecting box, and finally Enter the dust box from the second connection port 213 for collection.

In one embodiment, the size of the first connection port 212 along its longitudinal direction is equal to the size of the dust outlet 12 along its longitudinal direction, and the size of the second connection port 213 along its longitudinal direction is L ₂ , L ₁ And L ₂ satisfies the condition: L ₂ <L ₁ , and 0.2L≦L ₂ ≦0.5L. The dimension of the first connection port 212 along its width direction is W ₁ , and the dimension of the second connection port 213 along its width direction is W ₂ , W ₁ and W ₂ satisfy the condition: 0.8≦W ₁ /W ₂ ≦1.2.

In this way, the size change of the second connection port 213 in the longitudinal direction relative to the first connection port 212 is large, while the size change in the width direction is small, so that the negative pressure of dust increases at the second connection port 213 and the airflow Moving at a high speed, the dust is easily absorbed from the roller brush cavity 11 to the dust collecting box at the rear, thereby improving the dust collection efficiency. In addition, limited by the shape of the roller brush cavity 11 and the overall shape of the sweeping robot, the size ratio design of the roller brush cavity 11 , the first connection port 212 and the second connection port 213 of the present application is more reasonable, so that the cleaning effect is better. good.

In order to compare the vacuuming performance of the prior art and the vacuuming assembly 200 of the present application, the inventor conducted a targeted verification test:

Test method: The test is carried out by means of linear dust removal. Specifically, a certain amount of dust is sprinkled in a specific area, and the specific area can be in the shape of a rectangle, so that after the object to be tested walks through the specific area in a straight line, the amount of dust vacuumed is determined, so as to determine the dust removal rate. During the test, the dust collecting assembly 200 needs to be provided with negative pressure to vacuum the dust, and the dust needs to be collected and weighed. Therefore, the dust collecting structure and the negative pressure structure should be connected behind the dust collecting assembly 200 . The test structures and test conditions used in Examples 2, 3 and Comparative Examples 3-5 are the same, and the only difference is that L ₂ is different.

The test results are shown in Table 2:

Table 2

In each of the above examples and comparative examples, two sets of data were tested for reference.

The values of L ₁ , W ₁ and W ₂ in each of the above embodiments and comparative examples are the same, and for L ₁ satisfies L/3<L ₁ ≤L, and L ₂ <L ₁ , for example, L ₁ =L , W ₁ and W ₂ are any fixed values satisfying 0.8≦W ₁ /W ₂ ≦1.2, for example, W ₁ /W ₂ =1.

It can be seen from the above test results that when 0.2L<L ₂ ≤0.5L, the dust removal rate is as high as 62.57% or more, and the highest is 68.29%. On the other hand, when L ₂ =0.2L, the dust removal rate decreased. As L ₂ <0.2L, that is, the L ₂ value continues to decrease, the dust removal rate continues to decrease. Similarly, when L ₂ >0.5L, the dust removal rate also dropped significantly. Therefore, the above test shows that when 0.2L<L ₂ ≤0.5L is satisfied, the dust removal rate is obviously improved, and the dust collection efficiency is improved.

In some embodiments, the cross-sectional area of the first connection port 212 is larger than the cross-sectional area of the second connection port 213 . In this way, compared with the first connection port 212, the negative pressure of the second connection port 213 will be higher, the air flow speed will be faster, the dust collection effect will be good, and the dust collection efficiency will be high.

Referring to FIG. 3 again, in some embodiments, from the first connection port 212 to the second connection port 213 , the radial dimension of the transition channel 211 gradually increases. In this way, during the process from the first connection port 212 to the second connection port 213 , the negative pressure is gradually increased, the airflow speed is gradually increased, the cleaning process is stable and the cleaning efficiency is high.

In some embodiments, the longitudinal direction of the second connection port 213 is parallel to the longitudinal direction of the dust outlet 12 . In this way, it can be avoided that the transition channel 211 has a turning area, so that the air flow path of the transition channel 211 is smoother, and the resistance of dust in the transition channel 211 is reduced. In one embodiment, the longitudinal direction of the second connection port 213 , the longitudinal direction of the dust outlet 12 and the longitudinal direction of the rolling brush cavity 11 are arranged in parallel. In this way, the residual amount of dust in the roller brush cavity 11 can be kept low, the wind resistance on the dust path is also reduced, and the dust collection efficiency is improved.

Referring to FIG. 3 again, in some embodiments, the first connection port 212 has a first end and a second end along its longitudinal direction. The second connection port 213 has a third end and a fourth end along its lengthwise direction. The first end and the second end are connected to form a first connection line. The second end and the fourth end are connected to form a second connection line. The first connection line and the second connection line are respectively located on both sides of the connection line between the center of the first connection port 212 and the center of the second connection port 213 . The included angle α between the first connection line and the second connection line ranges from 120 degrees to 170 degrees. When the included angle α between the first connection line and the second connection line ranges from 120 degrees to 170 degrees, the transition channel 211 can be made to have a certain slope in the direction from the first connection port 212 to the second connection port 213 , and reduce the distance from the first connection port 212 to the second connection port 213, so that the dust can be smoothly and quickly absorbed into the rear dust box through the transition channel 211 after entering the first connection port 212, reducing the The adsorption resistance improves the dust collection efficiency. In one embodiment, the included angle α between the first connection line and the second connection line ranges from 150 degrees to 165 degrees. Within this range, it can be avoided that the inner wall of the transition channel 21 becomes blocking dust from the first connection port 212 to the second connection port 213 due to the excessively large included angle α between the first connection line and the second connection line. The blocking surface can also avoid that the distance between the first connection port 212 and the second connection port 213 is elongated due to the too small angle α between the first connection line and the second connection line, and the dust collection efficiency is not high.

As shown in FIG. 5 , in some embodiments, the floating connector 210 includes two first side walls 214 oppositely disposed along the first direction and two second side walls 215 oppositely disposed along the second direction. Each of the first side walls 214 is located between and connected to the two second side walls 215 . The two first side walls 214 and the two second side walls 215 surround the transition channel 211 . The first side wall 214 and the second side wall 215 are smoothly connected in transition. The first direction is perpendicular to the second direction. Specifically, the first direction is the lateral direction of the first connection port 212 , and the second direction is the longitudinal direction of the first connection port 212 . In this way, the resistance of the dust in contact with the inner wall of the transition channel 211 can be further reduced, so that the dust can be smoothly adsorbed to the dust collecting box behind. Specifically, the first side wall 214 and the second side wall 215 are connected by an arc transition.

In some embodiments, the floating connector 210 is connected to the floating housing 100 by injection molding, that is, the floating connector 210 and the floating housing 100 are integrally formed. The floating connector 210 and the floating housing 100 are injection-molded, which can simplify the structure of the connection between the floating connector 210 and the floating housing 100 , make the connection between the floating connector 210 and the floating housing 100 smoother, and reduce dust pollution. The kinetic energy loss at this connection facilitates the entry of dust into the transition channel 211 . In other embodiments, the floating connector 210 further includes a first connector, the first connector is arranged around the first connection port 212, the body 10 further includes a second connector, the second connector is arranged around the dust outlet 12, The dust outlet 12 is connected with the first connection port 212 by means of the first connection piece and the second connection piece. This method can also make the connection between the floating connector 210 and the floating housing 100 smoother, reduce the kinetic energy loss of dust at the connection, and facilitate the entry of dust into the transition channel 211 .

The present application also provides a dust collection system, including a dust collection box and the above-mentioned dust collection assembly 200 . Specifically, the dust box has an inlet of the dust box, and the inlet of the dust box is connected with the second connection port 213 .

The dust collection system further includes a front air duct structure, a fan structure and a rear air duct structure which are connected in sequence, and the dust collecting box is connected with the front air duct structure.

The present application also provides a cleaning robot, including the above-mentioned vacuuming system.

Specifically, the cleaning robot further includes a casing, and the dust suction system is installed on the casing.

The vacuum assembly 100, the vacuum system, and the cleaning robot provided by the embodiments of the present application have the following beneficial effects:

When the dust is driven by the rotation of the roller brush assembly and enters the rolling chamber 11 under the action of negative pressure, the size of the dust outlet 12 along its longitudinal direction is the same as the size of the roller brush chamber 11 along its longitudinal direction. The dimension satisfies L/3<L ₁ ≤L, which increases the area of the roller brush chamber 11 covered by the dust outlet 12 along its longitudinal direction, so that dust can be avoided on the path from the roller brush chamber 11 to the dust outlet 12 Being blocked by the inner wall of the brush cavity 11, the dust can be easily adsorbed from the brush cavity 11 to the dust outlet 12, so the dust residue in the brush cavity 11 can be reduced and the dust removal effect can be improved.

The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity, all possible combinations of the technical features in the above-described embodiments are not described. However, as long as there is no contradiction between the combinations of these technical features, All should be regarded as the scope described in this specification.

The above-mentioned embodiments only represent several embodiments of the present application, and the descriptions thereof are relatively specific and detailed, but should not be construed as a limitation on the scope of the patent application. It should be pointed out that for those skilled in the art, without departing from the concept of the present application, several modifications and improvements can be made, which all belong to the protection scope of the present application. Therefore, the scope of protection of the patent of the present application shall be subject to the appended claims.

Claims (18)

1. A floating housing (100), characterized in that it comprises:

   The main body (10) is provided with a rolling brush cavity (11) for installing the rolling brush assembly, and the main body (10) is provided with a dust outlet (12) communicating with the rolling brush cavity (11);

   Wherein, the dimension of the dust outlet (12) along its longitudinal direction is L ₁ , the dimension of the rolling brush cavity (11) along its longitudinal direction is L, and the L ₁ satisfies the condition: L/3< L ₁ ≤ L.
2. The floating housing (100) according to claim 1, wherein the L ₁ satisfies the condition: 0.9≤L ₁ ≤L.
3. The floating housing (100) according to claim 1, characterized in that the longitudinal direction of the dust outlet (12) is arranged in parallel with the longitudinal direction of the roller brush cavity (11).
4. The floating housing (100) according to claim 1, characterized in that, the dust outlet (12) is arranged symmetrically with respect to the center plane of the rolling brush cavity (11).
5. The floating housing (100) according to claim 1, characterized in that, the main body (10) is further provided with a dust inlet (13) communicating with the roller brush cavity (11), and the dust inlet (13) has a first centerline, and the dust outlet (12) has a second centerline;

   The first centerline and the second centerline are coplanar and intersect each other.
6. The floating housing (100) according to claim 5, wherein the included angle between the first centerline and the second centerline is greater than 90 degrees and less than 180 degrees.
7. A rolling brush mechanism, characterized by comprising a rolling brush assembly and the floating housing (100) according to any one of claims 1 to 6.
8. A dust suction assembly (200) for draining dust to a dust collecting box, characterized in that, the dust suction assembly (200) comprises a floating connector (210) and the rolling brush mechanism according to claim 7;

   The floating connector (210) includes a transition channel (211), a first connection port (212) and a second connection port (213) connected to opposite ends of the transition channel (211), and the first connection port ( 212) is used for connecting with the dust outlet (12), and the second connecting port (213) is used for connecting with the dust collecting box.
9. The dust suction assembly (200) according to claim 8, characterized in that, a dimension of the first connection port (212) along its longitudinal direction is the same as a dimension of the dust outlet (12) along its longitudinal direction equal, the dimension of the second connection port (213) along its longitudinal direction is L ₂ , and the L ₁ and L ₂ satisfy the conditions: L ₂ <L ₁ , and 0.2L<L ₂ ≤0.5L;

   The size of the dust outlet (12) along its width direction is W ₁ , the size of the second connection port (213) along its width direction is W ₂ , and the W ₁ and W ₂ satisfy the condition: the 0.8 ≤W ₁ /W ₂ ≤1.2.
10. The dust suction assembly (200) according to claim 8 or 9, wherein the cross-sectional area of the first connection port (22) is larger than the cross-sectional area of the second connection port (23).
11. The dust suction assembly (200) according to claim 8 or 9, characterized in that, from the first connection port (22) to the second connection port (23), the diameter of the transition channel (21) is gradually increase in size.
12. The dust suction assembly (200) according to claim 8 or 9, characterized in that the longitudinal direction of the second connection port (213) is parallel to the longitudinal direction of the dust outlet (12).
13. The dust suction assembly (200) according to claim 8 or 9, wherein the first connection port (212) has a first end and a second end along the longitudinal direction thereof, and the second connection port ( 213) It has a third end and a fourth end along its longitudinal direction, the first end and the third end are connected to form a first connection line, and the second end and the fourth end are connected to form a second connection. line, the first connection line and the second connection line are respectively located on both sides of the connection line between the center of the first connection port (212) and the center of the second connection port (213);

    Wherein, the included angle between the first connection line and the second connection line ranges from 120 degrees to 170 degrees.
14. The dust suction assembly (200) according to claim 13, wherein the included angle between the first connecting line and the second connecting line ranges from 150 degrees to 165 degrees.
15. The dust suction assembly (200) according to claim 8 or 9, wherein the floating connecting member (210) comprises two first side walls (214) oppositely arranged along a first direction and a second side wall along a second direction Two second sidewalls (215) arranged opposite each other, each of the first sidewalls (214) is located between the two second sidewalls (215), and is connected to the two second sidewalls (215). 215) are connected, and the two first side walls (214) and the two second side walls (215) are surrounded to form the transition channel (211);

    Wherein, the first side wall (214) and the second side wall (215) are smoothly connected in transition, and the first direction is perpendicular to the second direction.
16. The dust suction assembly (200) according to claim 8 or 9, wherein the floating connector (210) is integrally formed with the floating housing (100); or

    The floating connecting piece (210) further includes a first connecting piece, the first connecting piece is disposed around the first connecting port (212), and the body (10) further includes a second connecting piece, the second connecting piece The connecting piece is arranged around the dust outlet (12);

    The dust outlet (12) is connected with the first connection port (212) by means of the first connection piece and the second connection piece.
17. A dust collection system, characterized by comprising a dust collection box and the dust collection assembly (200) according to any one of claims 1 to 16.
18. A cleaning robot, characterized by comprising the dust collection system according to claim 17 .

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