CN209789745U - Floor brush assembly and sweeping robot - Google Patents

Abstract

The utility model discloses a brush subassembly and robot of sweeping floor. The floor brush assembly comprises a floor brush shell, an air suction port and a rolling brush, a floor brush cavity is arranged in the floor brush shell, at least part of the rolling brush is arranged in the floor brush cavity, and the air suction port is communicated with the floor brush cavity. The floor brush assembly further comprises a driving cavity and a driving piece, the driving cavity is provided with an air inlet, and the driving piece is used for rotating under the action of positive pressure air flow from the driving cavity and driving the rolling brush to rotate. Compare the formula scrubbing brush of electricity drive, the utility model provides a scrubbing brush subassembly need not additionally to be equipped with the motor with the drive round brush to the drive wind regime of this scrubbing brush subassembly no longer only provides by the runner of breathing in, can not arouse the pressure loss of the runner of breathing in and the problem that the further round brush drive effect that leads to is weak because of occuping the produced negative pressure air current of breathing in.

Description

Floor brush assembly and sweeping robot

technical field

The utility model relates to the technical field of household appliances, in particular to a ground brush assembly and a sweeping robot.

Background technique

The sweeping robot is a household appliance that has gradually entered ordinary family life in recent years. The main structure of the sweeping robot can be divided into a dust collection device, a dust suction device and a dust filter device according to functions, wherein the dust collection device includes a floor brush assembly, and the floor brush assembly is usually provided with a rolling brush. The rotation of the roller brush can raise the dust on the ground for easy suction.

The drive mode of the floor brush of the known sweeping robot is electric drive type, so-called electric drive type refers to that the motor drives the roller brush to rotate to carry out dust raising.

Sweeping robots with electric-driven floor brushes require motor drive, and their cost is relatively high. Furthermore, due to the introduction of power supply and electrical circuits, the entire system is complex in structure, heavy in weight, and prone to failure.

Utility model content

The main purpose of the utility model is to provide a floor brush assembly and a sweeping robot to solve the problem that a sweeping robot with an electric-driven floor brush needs to add an additional drive motor.

According to one aspect of the present invention, a floor brush assembly is provided, including a floor brush housing, an air suction port and a roller brush, the floor brush housing is provided with a floor brush chamber, and the roller brush is at least partially arranged In the ground brush chamber, the suction port communicates with the ground brush chamber, and the ground brush assembly also includes a driving chamber and a driving part, and the driving chamber is provided with an air inlet; the driving part is used for It rotates under the action of the positive pressure airflow from the drive chamber, and drives the roller brush to rotate.

In the technical solution, the air inlet of the driving chamber receives positive pressure airflow, and the positive pressure airflow drives the driving member to rotate, and then drives the roller brush to rotate. Compared with the electric-driven ground brush, the ground brush assembly in this technical solution does not need to be equipped with an additional motor to drive the roller brush, which reduces the cost, saves unnecessary electrical circuits, and avoids the problems of complex structure and prone to electrical failures ; and the driving wind source of the ground brush assembly in this technical solution is no longer only provided by the suction flow channel, and will not cause the pressure loss of the suction flow channel due to the occupation of the negative pressure air flow generated by the suction and further cause The driving effect of the roller brush is weak. In the case of using airflow to drive the ground brush assembly, it is ensured that the dust removal effect will not be weakened.

Further, the ground brush assembly further includes an isolation member, which separates the ground brush chamber into a driving air duct and a dust removal air duct, and the air suction port is connected to the dust removal air duct. The isolation member prevents the airflow of the negative pressure air source at the suction port from being used to drive the driving element, and the pressure loss of the suction flow channel is avoided.

Further, the isolation member is provided with several through holes. The through hole allows part of the airflow of the positive pressure air source to flow into the dust removal air duct, so that the vicinity of the through hole of the dust removal air duct presents a positive air pressure state. And because only a part of the positive pressure air flow flows through, so the vicinity of the through hole of the dust removal air duct is in a pressure state of slight positive pressure. The so-called slightly positive pressure means that the air pressure is slightly greater than the outdoor atmospheric pressure. In this embodiment, the vicinity of the through hole of the dust removal air duct is in a slightly positive pressure state, while the suction port of the dust removal air duct is in a negative pressure state, so there is an obvious air pressure difference in the entire dust removal air duct. The design of arranging several through holes in the isolation member improves the air pressure difference between the above two positions. The increase of the air pressure difference helps the air flow of the entire dust removal duct, the speed of air intake and exhaust is accelerated, and the dust is further driven into the suction port of the dust removal duct, and the dust removal effect and dust removal efficiency of the sweeping robot are improved.

Further, the cross-sectional shape of the through hole is elongated. The elongated through-hole makes the passing airflow a jet, and the positive-pressure airflow in the form of a jet makes the vicinity of the through-hole closer to a micro-positive pressure state.

Further, the number of the through holes is multiple, and the through holes are uniformly arranged in all or part of the isolation member. Multiple evenly arranged through holes make the jet distribution more uniform, and the area in the micro positive pressure state is relatively wider, which is more conducive to the air circulation of the entire dust removal air duct, and speeds up the suction and exhaust speed of the sweeping robot.

Further, the ground brush assembly also has a bearing seat and a bearing, the bearing seat is used for arranging the bearing, and the bearing is used for supporting the transmission rod. The rotation of the transmission rod can drive the roller brush to rotate, and the use of bearings can reduce the friction coefficient during the rotary motion and ensure the rotation accuracy, thereby facilitating the work of the roller brush.

In a preferred embodiment, the isolation member is a bearing seat. Choosing the bearing seat as the isolation member can avoid the increase in the number of parts.

In another preferred embodiment, the bearing seat at one end of the dust removal air channel isolates the driving air channel from the dust removal air channel, and the bearing seat at the other end serves as an exhaust channel of the dust removal air channel. The housing is non-sealed and allows airflow to pass through. After setting the bearing seat at the other end of the dust removal air duct as the exhaust channel of the dust removal air duct, the bearing seat as the exhaust channel replaces the original air outlet of the sweeping robot, and guides all the airflow from the original air outlet through the drainage pipeline. Flow to the drive chamber, causing the drive to rotate. Such a structural design makes full use of the positive pressure airflow of the original air outlet to improve the energy utilization rate.

Further, the driving member includes a plurality of turbine blades and a transmission rod, the turbine blades are fixedly connected to one end of the transmission rod, and the transmission rod is coaxial with the rolling brush. The driving part formed by the fixed connection of the turbine blade and the transmission rod has a simple structure and less power loss.

Further, the plurality of turbine blades constitute an axial fan, a radial fan or a mixed flow fan. If an axial flow fan is used, the direction of the driving chamber and its air inlet should be close to the axial direction of the fan; if a radial flow fan is used, the direction of the driving chamber and its air inlet should be close to the tangential direction of the outer circle of the fan; mixed flow Fans are somewhere in between. Those skilled in the art can determine the position of the drive chamber and its air inlet in the sweeping robot according to the needs, and can reasonably arrange the drainage pipeline, thereby optimizing the internal space of the sweeping robot.

According to another aspect of the present utility model, a sweeping robot is provided. The sweeping robot includes an air outlet, a drainage pipeline, and the ground brush assembly described in any of the aforementioned technical solutions; one end of the drainage pipeline is connected to the air outlet, and the other end is connected to the inlet of the ground brush assembly. breath. Apparently, the sweeping robot has the beneficial effects of the floor brush assembly of any of the aforementioned technical solutions, which will not be repeated here.

Additional aspects and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Description of drawings

Fig. 1 is a partial structural schematic diagram of a sweeping robot in an embodiment of the present invention, wherein the face cover of the sweeping robot is hidden;

Fig. 2 is a schematic diagram of the structure of the lower part of the sweeping robot in an embodiment of the present invention;

Fig. 3 is a top view of the floor brush assembly of the sweeping robot in one embodiment of the present invention;

Fig. 4 is the side view of Fig. 3;

Fig. 5 is a structural schematic diagram of a driving part of a cleaning robot in an embodiment of the present invention.

In the figure, 10-ground brush assembly; 110-suction port; 120-driver; 1201-turbine blade; 1202-transmission rod; 130-drive air duct; 140-dust removal air duct; Through hole; 160-drive chamber; 1601-air inlet; 20-housing; 30-motor; 40-separator; 50-dust cup; 60-hypa filter; 70-drainage pipeline.

Detailed ways

Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present utility model, but should not be construed as limiting the present utility model.

In describing the present invention, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "top", "bottom", The orientation or positional relationship indicated by "inner" and "outer" is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the referred device or element must be Having a particular orientation, being constructed and operating in a particular orientation, and therefore not to be construed as limiting the invention.

In the description of the present utility model, it should be noted that unless otherwise specified and limited, the term "connection" should be understood in a broad sense, for example, it can be a fixed connection and a movable connection, or it can be a detachable connection and a non-detachable connection. Connected, or integrally connected; may be mechanically connected, may also be electrically connected or may be in communication with each other. The "fixed connection" includes detachable connection, non-detachable connection and integral connection. Many different implementations or examples are provided below to realize different structures of the present utility model.

To simplify the disclosure of the present invention, components and arrangements of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the utility model. Furthermore, the present disclosure may repeat reference numerals and/or reference letters in different instances, such repetition is for simplicity and clarity and does not in itself indicate a relationship between the various embodiments and/or arrangements discussed.

The following text will describe the cleaning robot in some embodiments with reference to the accompanying drawings.

Fig. 1 is a partial structural schematic diagram of a sweeping robot in some implementations. The viewing angle in Fig. 1 is close to a top view, and the face cover of the sweeping robot is hidden. As shown in FIG. 1 , the sweeping robot includes a ground brush assembly 10, a housing 20, a motor 30, a separator 40, a dust cup 50, and a Hypa (High Efficiency Particle Air, abbreviated as HEPA) filter 60, wherein the ground brush assembly 10, The motor 30, the separator 40, the dust cup 50 and the Hypa filter 60 are all located inside the housing 20; the ground brush assembly 10 has a ground brush chamber, and the ground brush chamber and the separator 70 are connected by air through pipelines to separate The device 40 communicates with the dust cup 50 and the Hypa filter 60 respectively; the Hypa filter 60 communicates with the chamber defined by the motor cover of the motor 30 .

The motor 30 is a brushless motor, and the brushless motor is composed of a permanent magnet rotor, a multi-pole winding stator, a position sensor and other components. The high-speed rotation of the motor 30 makes the interior of the sweeping robot form a vacuum, and the dust or hair on the ground is driven by the negative pressure airflow, and enters the dust removal air duct of the sweeping robot from the suction port on the bottom of the sweeping robot. Optionally, the motor 30 can also be a brushed motor. The electromagnetic torque between the stator and rotor of a brushed motor makes the entire motor rotate and carry the load.

The separator 40 is provided with a separation chamber, and the separation chamber communicates with the dust removal air duct. The dust removal air duct includes the ground brush chamber and the air duct formed by the pipeline connecting the ground brush chamber and the separator. After the dust-laden airflow inside the dust removal air duct of the sweeping robot enters the separation chamber, the dust in the dust-laden airflow is separated from the air under the action of centrifugal force.

The dust cup 50 communicates with the separation chamber of the separator 40 through a groove-shaped passage, and the dust cup 50 is positioned directly below the separator 40. After the dust in the dust-laden airflow is separated from the air, the dust falls directly into the dust cup below. The dust cup 50 is fixedly connected to the separator 40, and the fixed connection includes detachable connection and non-detachable connection, and the detachable connection is, for example, a snap-fit method. Optionally, the dust cup 50 and the separator 40 are integrally formed.

The surface of the filter mesh of the Hypa filter 60 is in the form of folds, that is, corrugated, to increase the air-permeable area, thereby filtering more air. Please refer to FIG. 1 , there is a common cover directly above the separator 40 , the dust cup 50 and the Hypa filter 60 . Open the cover body to perform operations such as replacing the Hypa filter 60 and cleaning the dust cup 50 .

Referring to FIG. 1 , the basic working principle of the sweeping robot is: the motor 30 draws air to provide negative pressure airflow, and the floor brush assembly 10 is used to lift up the dust adhering to the ground. The dust-laden airflow enters the interior of the sweeping robot through the suction port of the floor brush assembly 10 and flows toward the separator 40 . The separator 40 throws the dust into the dust cup 50 through centrifugal action, and the air enters the chamber defined by the motor cover through the Hypa filter 60, wherein the Hypa filter 60 can filter the dust that is not thrown into the dust cup 50. of dust.

The shell 20 of the sweeping robot can be divided into upper and lower parts. Fig. 2 is a partial structural schematic diagram of the lower half of the sweeping robot.

As shown in FIG. 2 , the cleaning robot also has a drainage pipeline 70 . FIG. 2 shows only a portion of the length of drainage line 70 . One end of the drainage pipeline 70 is connected to the air outlet of the sweeping robot (not shown in the figure), and the other end is connected to the air inlet 1601 of the driving chamber 160, so that the positive pressure airflow at the air outlet of the sweeping robot is guided through the drainage pipe 70 to the vicinity of the driver 120. The structures of the driving chamber 160 , the air inlet 1601 and the driving member 120 will be described in detail below with reference to the accompanying drawings.

The airflow at the air outlet of the sweeping robot is a positive pressure airflow, and the air inlet 1601 receives the input of the positive pressure airflow, so that the driving part 120 rotates, and then drives the roller brush to rotate. Optionally, positive pressure airflow can also be provided by an independent external air supply source.

Compared with the sweeping robot equipped with electric-driven floor brushes, the sweeping robot in this embodiment has at least the following two levels of advantages:

(1) The floor brush that the sweeping robot in the present embodiment has is a wind-driven floor brush, which drives the driving member 120 to rotate through the airflow of the sweeping robot itself, and the driving member 120 drives the roller brush to rotate, so that the whole sweeping robot does not need additional Equipped with a motor for driving the rolling brushes, the cost is reduced, unnecessary electrical circuits are omitted, and the problems of complex structure and prone to electrical faults are avoided.

(2) Not only that, the driving wind source of the ground brush of the sweeping robot in this embodiment is no longer provided only by the suction flow channel, and the pressure loss of the suction flow channel will not be caused by the negative pressure air flow generated by the occupation of the suction. And further cause the problem that the driving effect of the rolling brush is weak. In the case of using the wind-driven ground brush assembly, it is ensured that the dust removal effect will not be weakened.

The following text will describe the floor brush assembly 10 of the cleaning robot in some embodiments in more detail with reference to the accompanying drawings.

Referring to Fig. 2, the ground brush assembly 10 includes a driving member 120 and a driving chamber 160, and the driving chamber 160 is provided with an air inlet 1601; the driving member 120 is used to rotate under the positive pressure airflow from the air inlet 1601, And drive the roller brush to rotate. The driving member 120 is in the form of a radial fan, the air inlet 1601 is connected to a volute (not shown in the figure) of the radial fan, and the air inlet 1601 extends tangentially of the radial fan. Correspondingly, the extension direction of the part of the drainage pipeline 70 near the air inlet 1601 is also close to the tangential direction of the radial fan. The use of a radial fan can make the direction of the air inlet tangential to the outer circle of the fan more saving on installation space.

Optionally, the driving member 120 may also be in the form of an axial flow fan or a mixed flow fan. When the axial flow fan is working, the air flow direction is the same as the axial direction of the fan; when the radial flow fan is working, the blades push the air to flow in a direction perpendicular to the axis of the fan (that is, radial direction); when the mixed flow fan is working, the impeller makes the air flow Centrifugal motion and axial motion. The choice of fan determines the position design of the air inlet to a certain extent, and even determines the layout of the drainage pipeline. If an axial flow fan is used, the direction of the air inlet should be close to the axial direction of the fan; if a radial flow fan is used, the direction of the air inlet should be close to the tangential direction of the outer circle of the fan.

As shown in FIG. 2 , the ground brush chamber is divided into a driving air duct 130 and a dust removal air duct 140 . The driving member 120 is located on the side where the driving air duct 130 is located.

Fig. 3 is a top view of the floor brush assembly of the sweeping robot in one embodiment of the present invention. As shown in Figure 3, the ground brush assembly 10 also has a ground brush housing, an air inlet 110 and a rolling brush (not shown in the figure), the ground brush housing defines and forms a ground brush chamber, and the ground brush chamber is also provided with a There is a rolling brush, and the suction port 110 is used as an entrance for the sweeping robot to suck up cleaning objects such as dust or hair, and it communicates with the brush chamber. Cleaning objects such as dust or hair enter the floor brush chamber. It should be noted that the meaning of "a roller brush is provided inside the floor brush chamber" should be understood in a broad sense, that is, it includes the situation that a part of the structure of the roller brush is located inside the floor brush chamber while the other part of the structure is exposed outside the floor brush chamber.

FIG. 3 also shows that the ground brush chamber is divided into a driving air passage 130 and a dust removal air passage 140 by a bearing seat 150 , and the structure of the bearing seat 150 will be described below in conjunction with FIG. 4 . The suction port 110 communicates with the dust removal air duct 140 . More precisely, the suction port 110 is on the side where the dust removal air duct 140 is located, rather than the side where the driving air duct 130 is located.

The bearing seat 150 as an isolation member prevents the air flow of the negative pressure air source at the suction port from being used to drive the driving member, and the pressure loss of the suction flow channel is avoided. Choosing the bearing seat as the isolation component can make full use of the original components of the sweeping robot without increasing the number of parts.

Optionally, the isolation member can also be a partition. As a commonly used isolation component, the partition has a simple structure and is easy to install, but additional components are required.

FIG. 4 is a side view of FIG. 3 . As shown in Figure 4, the ground brush assembly 10 also includes a bearing seat 150 and a bearing, and the bearing seat 150 is used to house the bearing. FIG. 4 also shows that the bearing housing 150 is provided with several through holes 1501 , and the through holes 1501 are used to allow the airflow to flow from the driving air duct 130 to the dust removal air duct 140 .

The through hole 1501 allows part of the airflow from the positive pressure air source to flow into the dust removal air duct 140 , so that the vicinity of the through hole of the dust removal air duct 140 presents a positive air pressure state. And because only a part of the positive pressure air flow flows through, the vicinity of the through hole of the dust removal air duct 140 is in a slightly positive pressure state. The so-called slightly positive pressure means that the air pressure is slightly greater than the outdoor atmospheric pressure. In this embodiment, the vicinity of the through hole of the dust removal air duct 140 is in a slightly positive pressure state, while the suction port of the dust removal air duct 140 is in a negative pressure state, so there is an obvious air pressure difference in the entire dust removal air duct 140 .

In the case that the isolation member has no through hole, since there is a negative pressure air source in the entire dust removal air duct 140 and the vicinity of the isolation member is also in the dust removal air duct 140, the air pressure near the isolation member is also negative pressure. In this way, the air pressure difference between the vicinity of the isolation member and the position of the suction port inside the dust removal air duct 140 is not obvious. In this embodiment, the design of providing several through holes in the isolation member increases the air pressure difference between the above two positions. The increase of the air pressure difference helps the air flow of the entire dust removal duct, the speed of air intake and exhaust is accelerated, and the dust is further driven into the suction port of the dust removal duct, and the dust removal effect and dust removal efficiency of the sweeping robot are improved.

If no isolation member is provided or the diameter of the through hole is too large, resulting in the driving air duct 130 and the dust removal air duct 140 being almost or completely connected, the rotation of the driving member 120 is easily affected by the negative pressure air source of the dust removal air duct 140. Influenced by the negative pressure airflow at the inhalation port, the pressure loss in the inhalation airway will still be reduced. The air pressure of the suction flow channel has an important influence on the dust collection ability of the sweeping robot. Inevitably, the dust removal effect of the sweeping robot will be greatly reduced.

More specifically, FIG. 4 also shows that four circular through holes 1501 are equidistantly arranged on the end surface of the bearing seat 150 , and the centers of the four circular through holes 1501 are located on the same circumference.

Optionally, the number of through holes is one or more; multiple through holes are evenly arranged. For example, the centers of multiple through holes are located on the same circumference; or the centers of multiple through holes are located on an array.

"Plurality" should be understood as at least two. The cross-sectional shape of the through hole can be circular, rectangular, square, regular polygon or other shapes. The through holes are preferably small holes, whereby a jet is formed. Those skilled in the art can reasonably set the inner diameter of the through hole and the number of the through hole according to the requirement. The larger the inner diameter of the through hole, or the more the number of through holes, the greater the positive pressure near the through hole of the dust removal air duct, but the pressure of the suction air channel will also leak to the driving air duct; the smaller the inner diameter of the through hole, Or the fewer the number of through holes, the smaller the positive pressure near the through holes of the dust removal air duct, the less obvious the positive pressure near the through holes, and the less obvious the state of slight positive pressure.

Fig. 5 is a structural schematic diagram of a driving part of a cleaning robot in an embodiment of the present invention. As shown in FIG. 5 , the driving member 120 includes a plurality of turbine blades 1201 and a transmission rod 1202 . As shown in FIG. 5 , the turbine blade 1201 is fixedly connected to one end of the transmission rod 1202 , and the transmission rod 1202 is coaxial with the roller brush. Specifically, the rolling brush is directly installed on the transmission rod 1202 .

The turbine blade 1201 is fixedly connected with the transmission rod 1202, so that the rotation of the turbine blade 1201 can drive the rotation of the power transmission rod; the transmission rod 1202 is coaxial with the roller brush, and the rotation of the transmission rod 1202 can drive the rotation of the roller brush. The positive pressure airflow at the air outlet drives the turbine blades 1201, and the turbine blades 1201 convert the kinetic energy of the fluid into mechanical energy to make the roller brush rotate. Specifically, the turbine blade and the transmission rod can be connected in a non-detachable connection such as welding, or in a detachable connection such as threaded connection or buckle connection, or can be integrally formed with the turbine blade and the transmission rod. Optionally, the transmission rod and the rolling brush can also be connected through a transmission mechanism.

In other embodiments of the present utility model, please refer to FIG. 2 , the bearing housing 150 at one end of the dust removal air duct 140 isolates the driving air duct 130 from the dust removal air duct 140 , and the bearing housing 150 at the other end serves as the exhaust air outlet for the dust removal air duct 140 . wind channel.

After the bearing seat at the other end of the dust removal duct is set as the exhaust channel of the dust removal duct, the exhaust duct can replace the original air outlet of the sweeping robot to discharge air to a certain extent, so the drainage pipeline can discharge the air of the sweeping robot. The airflow from the original air outlet is all diverted to the air inlet, so that the driving part is rotated. Such a structural design makes full use of all the positive pressure airflow from the original air outlet to improve the energy utilization rate.

In the description of this specification, descriptions with reference to the terms "one embodiment" and "another embodiment" mean that specific features, structures, materials or characteristics described in conjunction with the embodiments or examples are included in at least one embodiment of the present invention. method or example. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the described specific features, structures, materials or characteristics may be combined in any suitable manner in any one or more embodiments or examples.

Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes, modifications, substitutions and modifications, the scope of the present invention is defined by the claims and their equivalents.

Claims (10)

1. A ground brush assembly, comprising a ground brush housing, an air suction port and a rolling brush, the ground brush housing is provided with a ground brush chamber, the rolling brush is at least partly arranged in the ground brush chamber, the The suction port communicates with the ground brush chamber, and it is characterized in that the ground brush assembly also includes: a driving chamber, the driving chamber is provided with an air inlet; A driving part, the driving part is used to rotate under the action of the positive pressure airflow from the driving chamber, and drive the rolling brush to rotate. 2. The ground brush assembly according to claim 1, characterized in that, the ground brush assembly further comprises an isolation member, the isolation member divides the ground brush chamber into a driving air duct and a dust removal air duct, the The suction port communicates with the dust removal air duct. 3. The ground brush assembly according to claim 2, characterized in that, the isolation member is provided with several through holes. 4. The ground brush assembly according to claim 3, characterized in that there are multiple through holes, and the through holes are uniformly arranged in all or part of the isolation member. 5. The ground brush assembly according to claim 2, characterized in that, the ground brush assembly further has a bearing seat and a bearing, the bearing seat is used to accommodate the bearing, and the bearing is used to support the transmission rod. 6. The ground brush assembly according to claim 5, characterized in that, the isolation member is a bearing seat. 7. The floor brush assembly according to claim 6, wherein the bearing seat at one end of the dust removal air duct isolates the drive air duct from the dust removal air duct, and the bearing seat at the other end serves as the dust removal air duct. Road exhaust channel. 8. The floor brush assembly according to any one of claims 1-7, wherein the driving member comprises a plurality of turbine blades and a transmission rod, and the turbine blades are fixedly connected to the transmission rod At one end, the transmission rod is coaxial with the roller brush. 9. The floor brush assembly according to claim 8, wherein the plurality of turbine blades form an axial fan, a radial fan or a mixed flow fan. 10. A sweeping robot, comprising an air outlet, characterized in that, the sweeping robot also includes a drainage pipeline and the ground brush assembly according to any one of claims 1-9; one end of the drainage pipeline is connected to The other end of the air outlet is connected to the air inlet of the ground brush assembly.