CN114680724A

CN114680724A - Scrubbing brush structure and dust extraction

Info

Publication number: CN114680724A
Application number: CN202011639923.3A
Authority: CN
Inventors: 周庆东; 卢晓莹; 王文浩; 喻治安; 程福萍
Original assignee: Midea Group Co Ltd; Jiangsu Midea Cleaning Appliances Co Ltd
Current assignee: Midea Group Co Ltd; Jiangsu Midea Cleaning Appliances Co Ltd
Priority date: 2020-12-31
Filing date: 2020-12-31
Publication date: 2022-07-01
Anticipated expiration: 2040-12-31
Also published as: CN114680724B

Abstract

The embodiment of the invention provides a floor brush structure and a dust collection device, wherein the floor brush structure comprises a main body and a rolling brush component arranged on the main body, and the rolling brush component comprises: an outer drum; the balancing piece is arranged in the outer roller and connected with the outer roller; the operation piece is arranged in the outer roller, and the operation piece can move circumferentially relative to the outer roller, wherein the center of gravity of the operation piece is not overlapped with the center of gravity of the outer roller, and when the operation piece and the balance piece are located at opposite positions in the outer roller, the center of gravity of the rolling brush assembly is located on the axis of the outer roller. According to the technical scheme, the center of gravity of the whole floor brush structure is controlled, so that the center of gravity of the rolling brush assembly can be continuously adjusted according to a preset function, and further, continuously changed pressure is formed on the ground, and the floor brush structure vibrates stubborn dirt when dust is collected and cleaned, so that the cleaning capability is improved.

Description

Scrubbing brush structure and dust extraction

Technical Field

The invention relates to the technical field of household appliances, in particular to a floor brush structure and a dust collection device.

Background

At present, the dust collector is gradually widely used, thereby greatly facilitating the family cleaning work and reducing the housework intensity of people. The floor brush is an important structural part of the dust collector and plays a role in sweeping dust on the ground so as to facilitate the dust collection of the dust collector. In the case of hard-to-scale substances caused by long-time soil adhesion, air drying of soup stains and the like, the cleaning force applied by the floor brush is insufficient, and the floor brush is often unable to clean, so that the cleaning effect of the dust collector is greatly reduced.

Disclosure of Invention

The present invention has been made to solve at least one of the problems occurring in the prior art or the related art.

In view of this, a first aspect of the embodiments of the present invention provides a floor brush structure.

A second aspect of an embodiment of the present invention provides a dust suction apparatus.

In order to achieve the above object, an embodiment of a first aspect of the present invention provides a floor brush structure, including: the main part to and locate the round brush subassembly in the main part, the round brush subassembly includes: an outer drum; the balancing piece is arranged in the outer roller and connected with the outer roller; the operation piece is arranged in the outer roller, the moving piece can move circumferentially relative to the outer roller, the center of gravity of the operation piece is not overlapped with the center of gravity of the outer roller, and when the operation piece and the balance piece are located at opposite positions in the outer roller, the center of gravity of the rolling brush assembly is located on an axis line of the outer roller.

According to the embodiment of the first aspect of the invention, the floor brush structure comprises a main body and a rolling brush assembly, wherein the rolling brush assembly is arranged on the main body, so that cleaning can be realized under the action of the rolling brush assembly, the rolling brush assembly comprises an outer roller, a balancing piece is further arranged in the outer roller, and the balancing piece is connected with the outer roller and synchronously rotates with the outer roller. Still be equipped with the operation piece in outer cylinder, the operation piece can take place all the phase motion for outer cylinder, in addition, the focus of operation piece does not coincide with the focus of outer cylinder, therefore, when outer cylinder takes place to rotate, the operation piece can be through rotating the circumferential position angle of adjustment self for outer cylinder and balancing piece, control the whole focus of scrubbing brush structure, make the focus of scrubbing brush subassembly can carry out continuous adjustment according to predetermined function, and then form constantly changing pressure to ground, make the scrubbing brush structure when carrying out the dust absorption cleanness, form the vibration to stubborn dirt, in order to improve cleaning performance.

It should be emphasized that, when the operation member moves in the outer roller, if the operation member moves to a position opposite to the balance member, that is, the phase difference between the two is 180 °, the center of gravity of the rolling brush assembly is located on the axis of the outer roller, so that the user can adjust the center of gravity of the whole machine to meet different cleaning requirements of the user, in other words, normal cleaning can be realized without eccentric cleaning.

Generally, the outer roller is a cylinder for directly cleaning the ground in a floor brush structure, and the outer cylinder wall may be made of a material convenient for absorbing dirt on the ground, such as fluff or flocking. The balancing piece is a structure which is arranged in the outer roller and connected with the outer roller, the balancing piece is connected with the outer roller, the gravity centers of the balancing piece and the outer roller are not superposed with the axis of the outer roller, and an eccentric structure common to the outer roller is formed, so that when the outer roller rotates, the gravity centers of the balancing piece and the outer roller can be synchronously changed. Obviously, the change of the center of gravity may be up and down in addition to the front and back change. The running part is also arranged in the outer roller, the gravity center of the running part is not coincident with the outer roller, and the gravity centers of the running part and the outer roller can form a combined gravity center together. When the outer rolling part rotates, the synthetic gravity center formed by the running part and the outer roller can be changed according to the cleaning requirement by adjusting the rotation of the running part, so that the cleaning function of the floor brush structure is realized. If the formed composite gravity center is changed up and down all the time, the up-and-down vibration is realized, and the stubborn stains can be cleaned in an aggravated manner; or the formed composite gravity center is downward and repeatedly changed back and forth, and stubborn stains can be repeatedly cleaned by adding weight.

In addition, the floor brush structure in the above scheme provided by the invention can also have the following additional technical features:

among the above-mentioned technical scheme, the scrubbing brush structure still includes: the first driving piece is arranged on the outer roller and is in transmission connection with the operating piece so as to drive the operating piece to move.

In this technical scheme, be equipped with first driving piece on outer cylinder, first driving piece and operation piece transmission are connected and can drive the operation piece and remove. Generally, the first driving member uses a motor as a driving element to drive the running member to move. It should be noted that the first driving member is disposed on the outer roller, and when the outer roller rotates, the first driving member rotates in a same step.

Among the above-mentioned technical scheme, the scrubbing brush structure still includes: the attitude sensor is used for acquiring an attitude angle formed by the center line of the balance piece and the extension line of the gravity center of the outer roller along the gravity direction; and the controller is electrically connected with the first driving piece and the attitude sensor and is used for controlling the operation of the first driving piece according to the attitude angle.

In this technical scheme, the scrubbing brush structure includes attitude sensor, and attitude sensor can acquire the central line of balancing piece and the extension line that the center of gravity of outer cylinder is followed the gravity direction and is formed the gesture angle. The gravity center direction of the balancing piece is located on the center line of the balancing piece, and the posture angle is the angle direction formed by the gravity center direction of the balancing piece and the gravity direction. In addition, the floor brush structure further comprises a controller, wherein the controller is electrically connected with the first driving piece and the attitude sensor and is used for controlling the operation of the first driving piece according to the attitude angle. Obviously, after the attitude sensor acquires the attitude angle, the balance member is connected to the outer drum, so that the angle between the gravity center formed by the outer drum and the balance member and the gravity direction can be determined. And then the operation of the first driving piece is controlled through the controller so as to control the operation piece to rotate, and further the position of the synthetic center of gravity formed by the operation piece, the outer roller and the balance piece is changed, so that the position of the synthetic center of gravity is changed within a preset range.

In the technical scheme, when the posture angle is the first angle, the controller controls the first driving piece to rotate in the first direction; when the attitude angle is a second angle, the controller controls the first driving piece to rotate in a second direction, wherein the first direction is opposite to the second direction, and the center line of the balancing piece corresponding to the first angle and the center line of the balancing piece corresponding to the second angle are respectively positioned on two sides of the gravity center of the outer roller along the extension line of the gravity direction.

In the technical scheme, when the attitude angle is a first angle, the controller controls the first driving piece to rotate in a first direction; when the attitude angle is a second angle, the controller controls the first driving member to rotate in a second direction opposite to the first direction. The center line corresponding to the first angle and the center line corresponding to the second angle are respectively located on two sides of the gravity direction, so that the balance piece moves between the first angle and the second angle, in other words, the first angle is the maximum angle which can be reached by the posture angle in one direction, and the second angle is the maximum angle which can be reached by the posture angle in the other direction.

Specifically, the setting of the first angle and the second angle of the attitude angle can be understood as limiting the maximum range of the rotation angle of the balance member and the rolling outer cylinder, and ensuring that the balance member can swing between the first angle and the second angle. In order to counteract the back-and-forth shaking of the gravity center formed by the swinging of the balance piece and influence the use of the floor brush structure, the running piece can be rotated in opposite directions, so that the position of the combined gravity center of the running piece, the balance piece and the outer roller does not swing back and forth too much as possible, periodic gravity center movement is only formed in the up-and-down direction, periodic pressure on the ground is formed, and the deep cleaning of stubborn stains is realized.

Among the above-mentioned technical scheme, the scrubbing brush structure still includes: and the second driving piece is electrically connected with the outer roller and is used for driving the outer roller to rotate.

In this technical scheme, the second driving piece is connected with the outer cylinder electricity, and the second driving piece can drive the outer cylinder and rotate. It should be noted that the second driving member can drive the outer roller to rotate at a certain speed along a certain direction, and can also drive the outer roller to change the rotation direction during rotation.

Generally, the center of gravity formed by the outer drum and the balancing member is not coincident with the axis of the outer drum, so that when the outer drum rotates, the center of gravity also rotates around the axis of the outer drum. The second driving piece controls the outer roller to rotate, so that the pressure of the floor brush structure on the ground is changed while the floor brush structure is used for cleaning, and stubborn stains are cleaned.

Among the above-mentioned technical scheme, the scrubbing brush structure still includes: and the command receiving device is electrically connected with the controller, wherein the second driving piece is electrically connected with the controller, and the controller is also used for controlling the second driving piece to keep the current posture of the outer roller and controlling the first driving piece to rotate along the third direction according to the fixed-point cleaning command received by the command receiving device.

In the technical scheme, the floor brush structure further comprises an instruction receiving device electrically connected with the controller, and the controller controls the second driving piece to keep the current posture of the outer roller according to a fixed-point cleaning instruction received by the instruction receiving device. It is clear that the outer drum is now in a position-locked state and is no longer rotating, and therefore its position of center of gravity is not changed.

At the moment, the controller controls the first driving piece to rotate along the third direction, and the gravity center position of the operating piece can be adjusted, so that the floor brush structure can realize the action of wiping stains forwards and backwards. The third direction is the rotating direction of the first driving piece relative to the outer roller.

Among the above-mentioned technical scheme, the scrubbing brush structure still includes: the timer is electrically connected with the controller and used for determining the rotation time of the operating piece, and the controller can control the operation of the first driving piece according to the rotation time.

In this technical scheme, the scrubbing brush structure still includes the timer, and the timer is connected with the controller electricity, can set for the rotation time of operation piece through the timer, and the controller can be according to the rotation time that the timer set for, control the operation of first driving piece. Especially, when the scrubbing brush structure is carrying out the action of wiping the spot around the fixed point, the timer can provide the preset time to the user can use scrubbing brush structure automatic completion to the fixed point of stubborn spot on ground and clear away, and convenience of customers uses.

In the technical scheme, the running part can rotate between the first position and the second position around the axis of the outer roller, and the balancing part is positioned outside a circumferential range formed by the first position and the second position.

In this solution, the runner can rotate around the axis of the outer drum between a first position and a second position. It should be noted here that the first position and the second position are two positions in which the maximum angle can be achieved when the runner rotates around the outer drum. That is, the runnability component can be swung around the axis of the outer drum between a first position and a second position. In addition, the balancing piece is positioned outside the circumferential range formed by the first position and the second position, namely the radius of the swinging of the running piece of the balancing piece is smaller than the radius of the rotation of the balancing piece, and the balancing piece and the running piece do not interfere with each other when moving, so that the balancing piece and the running piece can rotate simultaneously.

Among the above-mentioned technical scheme, the balancing piece is the arcuation, and the operation piece is the arcuation, and the axis of balancing piece, the axis of operation piece and the axis collineation of outer cylinder.

In the technical scheme, the balance piece and the operation piece are both arc-shaped. The axis of the balancing member is collinear with the axis of the running member and the axis of the outer drum. It can be understood that the three are coaxial, the arrangement of the moving structure in the outer roller can be simplified, and the interference between the three can be avoided to the maximum extent.

In addition, the center of gravity of the arc-shaped structure deviates from the axis position, so that a centrifugal force can be effectively formed during rotation, and a vibration effect on dirt is generated during cleaning of the floor brush structure.

In the above technical solution, the balance member and the operation member are different in radial position with respect to the axis of the outer drum.

In the technical scheme, the radial positions of the balance piece and the running piece relative to the axis of the outer drum are different, so that the radial positions of the balance piece and the running piece can be overlapped, and the balance piece and the running piece can synchronously rotate without interference.

Among the above-mentioned technical scheme, the scrubbing brush structure still includes: the shell is internally provided with an outer roller, wherein the two opposite sides of the shell are respectively provided with a first hole and a second hole, and a medium can flow into the shell through the first hole and is discharged outwards through the second hole under the action of the outer roller.

In the technical scheme, the floor brush structure further comprises a shell, and the outer roller is arranged in the shell. The two opposite sides of the shell are respectively provided with a first hole and a second hole, and the medium can flow into the shell through the first holes and is discharged outwards through the second holes under the action of the outer roller.

Generally, the brush structure can be used in a vacuum cleaner, and the outer roller within the brush structure can be rotated to perform a sweeping or brushing-like action to clean the floor. In addition, the two sides of the shell are also provided with a first hole and a second hole, negative air pressure can be applied to the floor brush structure, and the medium on the ground is sucked from the first hole and discharged into the second hole to be collected.

Because the outer roller can form variable pressure on the ground by the floor brush structure through the movement of the inner structure, stubborn stains on the ground can be intensively cleaned.

Among the above-mentioned technical scheme, the quantity of outer cylinder is two, and the both sides in first hole are located respectively to two outer cylinders, and wherein, the rotation direction of two outer cylinders is opposite.

In this technical scheme, the quantity of scrubbing brush structure's outer cylinder is two, locates the both sides in first hole, and its rotation direction is opposite. When the outer roller rotates, the floor can be swept or brushed, so that media such as dirt, debris, sundries and the like on the floor are taken away from the floor and enter the shell. It is clear that when the two outer drums are rotating simultaneously, it is easier to bring the media inside the housing, to the second port and then to the outside, due to their opposite rotation direction. The two outer drums are more effective in gathering the media inside the housing than a configuration with only one outer drum.

Among the above-mentioned technical scheme, two outer cylinders are located the casing along the fore-and-aft direction.

In this technical scheme, two outer cylinders are located the fore-and-aft direction in the casing respectively, and when cleaning, two cylinders can drive the medium and enter into inside the casing. Generally, the track of the floor brush structure moves back and forth when the floor brush structure performs cleaning. Therefore, the two outer drums are arranged in tandem, and the medium can be effectively prevented from falling off during cleaning.

An embodiment of a second aspect of the present invention provides a dust suction device, including a dust suction link; the floor brush structure of any one of the above first aspect embodiments is disposed at one end of the dust collection link.

According to the dust suction device provided by the embodiment of the second aspect of the invention, the dust suction device comprises the dust suction connecting rod, and the ground brush structure is arranged at one end of the dust suction connecting rod, so that the ground brush structure can better suck dust when the dust suction device is used for cleaning dust on the ground.

In addition, the dust collection connecting rod comprises any one of the floor brush structures of the first aspect, so that any one of the beneficial effects of any one of the embodiments is achieved, and further description is omitted.

Among the above-mentioned technical scheme, dust extraction still includes: the main machine is arranged on the dust collection connecting rod; the handle is arranged at the other end of the dust collection connecting rod far away from the ground brush structure.

In the technical scheme, the dust suction device further comprises a main machine and a handle. The main machine is arranged on a connecting rod of the dust suction device and is used for controlling the operation of each structure in the dust suction device. The handle is arranged at the other end of the dust collection connecting rod, which is far away from the ground brush structure, and a user can use the dust collection device to clean the ground by holding the handle when using the floor brush.

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

Drawings

FIG. 1 shows a schematic structural view of a roll brush assembly according to an embodiment of the present invention;

FIG. 2 shows a schematic structural view of a brush roll assembly according to an embodiment of the present invention;

FIG. 3 shows a schematic structural view of a floor brush structure according to an embodiment of the present invention;

FIG. 4 is a schematic view showing a structure of a dust suction apparatus according to an embodiment of the present invention;

FIG. 5 shows a schematic structural view of a brush roll assembly according to an embodiment of the present invention;

FIG. 6 shows a schematic structural view of a brush roll assembly according to an embodiment of the present invention;

FIG. 7 illustrates a schematic structural view of a roll brush assembly according to an embodiment of the present invention;

FIG. 8 shows a schematic structural view of a brush roll assembly according to an embodiment of the present invention;

FIG. 9 shows a schematic structural view of a roll brush assembly according to an embodiment of the present invention;

FIG. 10 shows a schematic structural view of a roll brush assembly according to an embodiment of the present invention;

FIG. 11 shows a schematic structural view of a brush roll assembly according to an embodiment of the present invention;

FIG. 12 shows a schematic structural view of a brush roll assembly according to an embodiment of the present invention.

Wherein, the correspondence between the reference numbers and the component names in fig. 1 to 12 is:

100: a floor brush structure; 1001: a main body; 1002: a roll brush assembly; 102: an outer drum; 104: a balance member; 106: a running member; 108: a first driving member; 110: an attitude sensor; 112: a controller; 114: a second driving member; 116: an instruction receiving device; 118: a timer; 120: a housing; 122: a first hole; 124: a second hole; 200: a dust collection device; 202: a dust collection connecting rod; 204: a host; 206: a handle.

Detailed Description

In order that the above objects, features and advantages of the embodiments of the present invention can be more clearly understood, embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and detailed description. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application, however, embodiments of the present invention may be practiced otherwise than as specifically described herein, and the scope of the present application is not limited by the specific details disclosed herein.

Some embodiments according to the invention are described below with reference to fig. 1 to 12.

Example one

As shown in fig. 1, a floor brush structure 100 according to the present embodiment includes a main body 1001, and a rolling brush assembly 1002 disposed on the main body 1001, where the rolling brush assembly 1002 includes an outer roller 102, and a balancing member 104 is further disposed in the outer roller 102, and the balancing member 104 is connected to the outer roller 102 and rotates synchronously with the outer roller 102. Still be equipped with operation piece 106 in outer cylinder 102, operation piece 106 can take place the all-phase motion for outer cylinder 102, in addition, the focus of operation piece 106 does not coincide with the focus of outer cylinder 102, therefore, when outer cylinder 102 takes place to rotate, operation piece 106 can be through rotating the circumferential position angle of adjustment self for outer cylinder 102 and balancing member 104, control the whole focus of scrubbing brush structure 100, make the focus of scrubbing brush structure 100 can carry out continuous adjustment according to the function of predetermineeing, and then form constantly changing pressure to ground, make scrubbing brush structure 100 when carrying out the dust absorption cleanness, form the vibration to stubborn dirt, in order to improve cleaning performance.

It should be emphasized that, when the operation member 106 moves in the outer roller 102, if the operation member moves to a position opposite to the balance member, that is, the phase difference between the two is 180 °, the center of gravity of the whole floor brush structure is located at the axis of the outer roller 102, so that the user can adjust the center of gravity of the whole floor brush structure to meet different cleaning requirements of the user, in other words, normal cleaning can be achieved without eccentric cleaning.

Generally, the outer drum 102 is a cylinder for directly cleaning the ground in the floor brush structure 100, and the outer wall thereof may be a material for easily adsorbing dirt on the ground, such as fluff or flocked hair. The balance member 104 is provided in the outer drum 102 and connected to the outer drum 102, and the balance member 104 is connected to the outer drum 102 such that the centers of gravity of the balance member and the outer drum 102 do not coincide with each other and form an eccentric structure common to the outer drum 102, and thus the centers of gravity of the balance member and the outer drum 102 are simultaneously changed when the outer drum 102 rotates. Obviously, the change of the center of gravity may be up and down in addition to the front and back change. Also disposed within outer drum 102 is a runnability component 106, the center of gravity of which is not coincident with outer drum 102, and the center of gravity of which may together form a composite center of gravity. When the outer roller rotates, the rotating member 106 can be adjusted to rotate, so that the resultant gravity center formed by the rotating member and the outer roller 102 can be changed according to the cleaning requirement, thereby realizing the cleaning function of the floor brush structure 100. If the formed composite gravity center is changed up and down all the time, the up-and-down vibration is realized, and the stubborn stains can be cleaned in an aggravated manner; or the formed composite gravity center is downward and repeatedly changed back and forth, and stubborn stains can be repeatedly cleaned by adding weight.

The shape of the balance member 104 and the operation member 106 may be an arc shape, as shown in fig. 1, or a rectangle shape, as shown in fig. 12.

Example two

Generally, the outer drum 102 is a cylinder for directly cleaning the ground in the floor brush structure 100, and the outer wall thereof may be a material for easily adsorbing dirt on the ground, such as fluff or flocked hair. The balance member 104 is provided in the outer drum 102 and connected to the outer drum 102, and the balance member 104 is connected to the outer drum 102 such that the centers of gravity of the balance member and the outer drum 102 do not coincide with each other and form an eccentric structure common to the outer drum 102, and thus the centers of gravity of the balance member and the outer drum 102 are simultaneously changed when the outer drum 102 rotates. Obviously, the change of the center of gravity may be up and down in addition to the front and back change. The running member 106 is also disposed within the outer drum 102 and has a center of gravity that is not coincident with the outer drum 102, and the centers of gravity of the two may together form a composite center of gravity. When the outer roller rotates, the rotating member 106 can be adjusted to rotate, so that the resultant gravity center formed by the rotating member and the outer roller 102 can be changed according to the cleaning requirement, thereby realizing the cleaning function of the floor brush structure 100. If the formed composite gravity center is changed up and down all the time, the up-and-down vibration is realized, and the stubborn stains can be cleaned in an aggravated manner; or the formed composite gravity center is downward and repeatedly changed back and forth, and stubborn stains can be repeatedly cleaned by adding weight.

Further, as shown in fig. 2, a first driving member 108 is disposed on the outer roller 102, and the first driving member 108 is connected to the running member 106 in a transmission manner to drive the running member 106 to move. Generally, the first driving member 108 uses a motor as a driving element to move the operation member 106. It should be noted that the first driving member 108 is disposed on the outer roller 102, and when the outer roller 102 rotates, the first driving member 108 rotates in a same step.

EXAMPLE III

Further, the floor brush structure 100 includes an attitude sensor 110, and the attitude sensor 110 can acquire an attitude angle formed by the center line of the balance 104 and an extension line of the center of gravity of the outer drum in the gravity direction. The gravity center direction of the balance piece 104 is on the center line of the balance piece 104, and the posture angle is an angle direction formed by the gravity center direction of the balance piece 104 and the gravity direction. In addition, the floor brush structure 100 further includes a controller 112, and the controller 112 is electrically connected to the first driving member 108 and the attitude sensor 110, and is used for controlling the operation of the first driving member 108 according to the attitude angle. It is apparent that, when the attitude angle is acquired by the attitude sensor 110, since the balance member 104 is connected to the outer drum 102, the angle of the gravity center formed by the outer drum 102 and the balance member 104 with the gravity direction can be determined. The operation of the first driving member 108 is controlled by the controller 112 to control the operation of the operation member 106, so as to change the position of the resultant center of gravity formed by the operation member 106, the outer drum 102 and the balance member 104, within a predetermined range.

Example four

As shown in fig. 1, a floor brush structure 100 provided in this embodiment includes a main body 1001, and a rolling brush assembly 1002 disposed on the main body 1001, the rolling brush assembly 1002 includes an outer drum 102, a balancing member 104 is further disposed in the outer drum 102, and the balancing member 104 is connected to the outer drum 102 and rotates synchronously with the outer drum 102. The running part 106 is further arranged in the outer roller 102, the running part 106 can move relative to the outer roller 102, and in addition, the center of gravity of the running part 106 is not overlapped with that of the outer roller 102, so when the outer roller 102 rotates, the running part 106 can adjust the circumferential position angle of the running part 106 relative to the outer roller 102 and the balance part 104 through rotation, the whole center of gravity of the floor brush structure 100 is controlled, the center of gravity of the floor brush structure 100 can be continuously adjusted according to a preset function, further, the pressure which changes constantly is formed on the ground, and when the floor brush structure 100 is used for dust collection and cleaning, the tough dirt is vibrated, so that the cleaning capacity is improved.

Generally, the outer drum 102 is a cylinder for directly cleaning the ground in the floor brush structure 100, and the outer wall thereof may be a material for easily adsorbing dirt on the ground, such as fluff or flocked hair. The balance member 104 is provided in the outer drum 102 and connected to the outer drum 102, and the balance member 104 is connected to the outer drum 102 such that the centers of gravity of the balance member and the outer drum 102 do not coincide with each other and form an eccentric structure common to the outer drum 102, and thus the centers of gravity of the balance member and the outer drum 102 are simultaneously changed when the outer drum 102 rotates. Obviously, the change of the center of gravity may be up and down in addition to the front and back change. Also disposed within outer drum 102 is a runnability component 106, the center of gravity of which is not coincident with outer drum 102, and the center of gravity of which may together form a composite center of gravity. When the outer roller rotates, the rotating member 106 can be adjusted to rotate, so that the resultant center of gravity formed by the rotating member and the outer roller 102 can be changed according to the requirement of cleaning, thereby realizing the cleaning function of the floor brush structure 100. If the formed composite gravity center is changed up and down all the time, the up-and-down vibration is realized, and the stubborn stains can be cleaned in an aggravated manner; or the formed composite gravity center is downward and repeatedly changed back and forth, and stubborn stains can be repeatedly cleaned by adding weight.

Further, the floor brush structure 100 includes an attitude sensor 110, and the attitude sensor 110 can acquire an attitude angle of the center line of the balance piece 104 with respect to the gravity direction. The gravity center direction of the balance piece 104 is on the center line of the balance piece 104, and the posture angle is an angle direction formed by the gravity center direction of the balance piece 104 and the gravity direction. In addition, the floor brush structure 100 further includes a controller 112, and the controller 112 is electrically connected to the first driving member 108 and the attitude sensor 110, and is used for controlling the operation of the first driving member 108 according to the attitude angle. It is apparent that, when the attitude angle is acquired by the attitude sensor 110, since the balance member 104 is connected to the outer drum 102, the angle of the gravity center formed by the outer drum 102 and the balance member 104 with the gravity direction can be determined. The operation of the first driving member 108 is controlled by the controller 112 to control the operation of the operation member 106, so as to change the position of the resultant center of gravity formed by the operation member 106, the outer drum 102 and the balance member 104, within a predetermined range.

Further, when the attitude angle is a first angle, the controller 112 controls the first driving member 108 to rotate in a first direction; when the attitude angle is a second angle, the controller 112 controls the first driving element 108 to rotate in a second direction opposite to the first direction. The first angle is the maximum angle which can be reached by the attitude angle in one direction, and the second angle is the maximum angle which can be reached by the attitude angle in the other direction.

Specifically, setting the first angle and the second angle of the attitude angle is understood to limit the maximum range of the rotation angle of the balance 104 and the rolling outer cylinder, and ensure that the balance 104 can swing between the first angle and the second angle. In order to counteract the forward and backward shaking of the center of gravity formed by the swinging of the balance piece 104 and influence the use of the floor brush structure 100, the running piece 106 can be rotated in opposite directions, so that the position of the combined center of gravity of the running piece 106, the balance piece 104 and the outer roller 102 does not swing back and forth too much as possible, and only the periodic center of gravity movement is formed in the vertical direction, so that the periodic pressure on the ground is formed, and the deep cleaning of stubborn dirt is realized.

EXAMPLE five

Further, the floor brush structure 100 includes an attitude sensor 110, and the attitude sensor 110 can acquire an attitude angle of the center line of the balance piece 104 with respect to the gravity direction. The gravity center direction of the balance piece 104 is on the center line of the balance piece 104, and the posture angle is an angle direction formed by the gravity center direction of the balance piece 104 and the gravity direction. In addition, the floor brush structure 100 further comprises a controller 112, wherein the controller 112 is electrically connected to the first driving member 108 and the attitude sensor 110, and is used for controlling the operation of the first driving member 108 according to the attitude angle. It is apparent that, when the attitude angle is acquired by the attitude sensor 110, since the balance member 104 is connected to the outer drum 102, the angle of the gravity center formed by the outer drum 102 and the balance member 104 with the gravity direction can be determined. The operation of the first driving member 108 is controlled by the controller 112 to control the operation of the operation member 106, so as to change the position of the resultant center of gravity formed by the operation member 106, the outer drum 102 and the balance member 104, within a predetermined range.

Further, when the attitude angle is a first angle, the controller 112 controls the first driving member 108 to rotate in a first direction; when the attitude angle is a second angle, the controller 112 controls the first driving member 108 to rotate in a second direction opposite to the first direction. The first angle is the maximum angle which can be reached by the attitude angle in one direction, and the second angle is the maximum angle which can be reached by the attitude angle in the other direction.

Further, the second driving member 114 is electrically connected to the outer roller 102, and the second driving member 114 can drive the outer roller 102 to rotate. It should be noted that the second driving member 114 can drive the outer roller 102 to rotate in a certain direction at a certain speed, and can also drive the outer roller 102 to change the rotation direction during rotation.

Generally, the center of gravity formed by the outer drum 102 and the balancer 104 does not coincide with the axis of the outer drum 102, and therefore, when the outer drum 102 rotates, the center of gravity also rotates around the axis of the outer drum 102. The second driving member 114 controls the outer roller 102 to rotate, so that the floor brush structure 100 can form a pressure varying on the ground while cleaning, thereby cleaning stubborn stains.

EXAMPLE six

Generally, the outer drum 102 is a cylinder for directly cleaning the ground in the floor brush structure 100, and the outer wall thereof may be a material such as fluff or flocked hair for absorbing dirt on the ground. The balance member 104 is provided in the outer drum 102 and connected to the outer drum 102, and the balance member 104 is connected to the outer drum 102 such that the centers of gravity of the balance member and the outer drum 102 do not coincide with each other and form an eccentric structure common to the outer drum 102, and thus the centers of gravity of the balance member and the outer drum 102 are simultaneously changed when the outer drum 102 rotates. Obviously, the change of the center of gravity may be up and down in addition to the front and back change. The running member 106 is also disposed within the outer drum 102 and has a center of gravity that is not coincident with the outer drum 102, and the centers of gravity of the two may together form a composite center of gravity. When the outer roller rotates, the rotating member 106 can be adjusted to rotate, so that the resultant gravity center formed by the rotating member and the outer roller 102 can be changed according to the cleaning requirement, thereby realizing the cleaning function of the floor brush structure 100. If the formed composite gravity center is changed up and down all the time, the up-and-down vibration is realized, and the stubborn stains can be cleaned in an aggravated manner; or the formed composite gravity center is downwards and repeatedly changed back and forth, so that stubborn dirt can be repeatedly cleaned by increasing weight.

Further, when the attitude angle is a first angle, the controller 112 controls the first driving member 108 to rotate in a first direction; when the attitude angle is a second angle, the controller 112 controls the first driving element 108 to rotate in a second direction opposite to the first direction. The center line corresponding to the first angle and the center line corresponding to the second angle are respectively located on two sides of the gravity direction, so that the balance piece moves between the first angle and the second angle, in other words, the first angle is the maximum angle which can be reached by the posture angle in one direction, and the second angle is the maximum angle which can be reached by the posture angle in the other direction.

Specifically, setting the first angle and the second angle of the attitude angle is understood to limit the maximum range of the rotation angle of the balance member 104 and the rolling outer cylinder, and ensure that the balance member 104 can swing between the first angle and the second angle. In order to counteract the forward and backward shaking of the center of gravity formed by the swinging of the balance piece 104 and influence the use of the floor brush structure 100, the running piece 106 can be rotated in opposite directions, so that the position of the combined center of gravity of the running piece 106, the balance piece 104 and the outer roller 102 does not swing back and forth too much as possible, and only the periodic center of gravity movement is formed in the vertical direction, so that the periodic pressure on the ground is formed, and the deep cleaning of stubborn dirt is realized.

Further, the second driving member 114 is electrically connected to the outer roller 102, and the second driving member 114 can drive the outer roller 102 to rotate. It should be noted that the second driving member 114 can drive the outer roller 102 to rotate at a certain speed in a certain direction, and can also drive the outer roller 102 to change the rotating direction during the rotation.

Generally, the center of gravity formed by the outer drum 102 and the balance 104 does not coincide with the axis of the outer drum 102, and therefore, when the outer drum 102 rotates, the center of gravity also rotates around the axis of the outer drum 102. The second driving member 114 controls the outer roller 102 to rotate, so that the floor brush structure 100 can form a pressure varying on the ground while cleaning, thereby cleaning stubborn stains.

Further, the floor brush structure 100 further includes a command receiving device 116 electrically connected to the controller 112, and the controller 112 controls the second driving member 114 to maintain the current posture of the outer roller 102 according to the fixed point cleaning command received by the command receiving device 116. It is clear that the outer drum 102 is now in a position-locked state and is no longer rotating, and therefore its position of the center of gravity is not changed.

At this time, the controller 112 controls the first driving member 108 to rotate in the third direction, so as to adjust the position of the center of gravity of the moving member 106, and thus the floor brush structure 100 can perform the action of wiping the dirt back and forth. Wherein the third direction is a rotation direction of the first driving member 108 relative to the outer drum 102.

Further, the floor brush structure 100 further includes a timer 118, the timer 118 is electrically connected to the controller 112, the rotation time of the operation member 106 can be set by the timer 118, and the controller 112 can control the operation of the first driving member 108 according to the rotation time set by the timer 118. Particularly, when the floor brush structure 100 performs the action of wiping stains before and after a fixed point, the timer can provide preset time, so that a user can automatically complete fixed-point cleaning of stubborn stains on the ground by using the floor brush structure 100, and the floor brush structure is convenient for the user to use.

EXAMPLE seven

As shown in fig. 1, a floor brush structure 100 provided in this embodiment includes a main body 1001, and a rolling brush assembly 1002 disposed on the main body 1001, the rolling brush assembly 1002 includes an outer drum 102, a balancing member 104 is further disposed in the outer drum 102, and the balancing member 104 is connected to the outer drum 102 and rotates synchronously with the outer drum 102. Still be equipped with operation piece 106 in outer cylinder 102, operation piece 106 can take place the all-phase motion for outer cylinder 102, in addition, the focus of operation piece 106 does not coincide with the focus of outer cylinder 102, therefore, when outer cylinder 102 takes place to rotate, operation piece 106 can be through rotating the circumferential position angle of adjustment self for outer cylinder 102 and balancing member 104, control the whole focus of scrubbing brush structure 100, make the focus of scrubbing brush structure 100 can carry out continuous adjustment according to the function of predetermineeing, and then form constantly changing pressure to ground, make scrubbing brush structure 100 when carrying out the dust absorption cleanness, form the vibration to stubborn dirt, in order to improve cleaning performance.

Generally, the outer drum 102 is a cylinder for directly cleaning the ground in the floor brush structure 100, and the outer wall thereof may be a material for easily adsorbing dirt on the ground, such as fluff or flocked hair. The balance member 104 is provided in the outer drum 102 and connected to the outer drum 102, and the balance member 104 is connected to the outer drum 102 such that the centers of gravity of the balance member and the outer drum 102 do not coincide with each other and form an eccentric structure common to the outer drum 102, and thus the centers of gravity of the balance member and the outer drum 102 are simultaneously changed when the outer drum 102 rotates. Obviously, the change of the center of gravity may be up and down in addition to the front and back change. Also disposed within outer drum 102 is a runnability component 106, the center of gravity of which is not coincident with outer drum 102, and the center of gravity of which may together form a composite center of gravity. When the outer roller rotates, the rotating member 106 can be adjusted to rotate, so that the resultant gravity center formed by the rotating member and the outer roller 102 can be changed according to the cleaning requirement, thereby realizing the cleaning function of the floor brush structure 100. If the formed composite gravity center is changed up and down all the time, the up-and-down vibration is realized, and the heavy cleaning can be carried out on stubborn stains; or the formed composite gravity center is downward and repeatedly changed back and forth, and stubborn stains can be repeatedly cleaned by adding weight.

Further, the floor brush structure 100 includes an attitude sensor 110, and the attitude sensor 110 can acquire an attitude angle of the center line of the balance piece 104 with respect to the gravity direction. The gravity center direction of the balance piece 104 is on the center line of the balance piece 104, and the posture angle is an angle direction formed by the gravity center direction of the balance piece 104 and the gravity direction. In addition, the floor brush structure 100 further includes a controller 112, and the controller 112 is electrically connected to the first driving member 108 and the attitude sensor 110, and is used for controlling the operation of the first driving member 108 according to the attitude angle. It is apparent that, when the attitude angle is acquired by the attitude sensor 110, since the balance member 104 is connected to the outer drum 102, the angle of the gravity center formed by the outer drum 102 and the balance member 104 with the gravity direction can be determined. The operation of the first driving member 108 is controlled by the controller 112 to control the rotation of the operation member 106, so as to change the position of the resultant center of gravity formed by the operation member 106, the outer drum 102 and the balance member 104, within a preset range.

Specifically, setting the first angle and the second angle of the attitude angle is understood to limit the maximum range of the rotation angle of the balance 104 and the rolling outer cylinder, and ensure that the balance 104 can swing between the first angle and the second angle. In order to counteract the forward and backward shaking of the center of gravity formed by the swinging of the balance member 104 and to influence the use of the floor brush structure 100, the operation member 106 can be rotated in the opposite direction, so that the position of the combined center of gravity of the operation member 106, the balance member 104 and the outer roller 102 does not swing back and forth too much as possible, and only the periodic center of gravity movement is formed in the up and down direction, so that the periodic pressure on the floor is formed, and the deep cleaning of stubborn dirt is realized.

At this time, the controller 112 controls the first driving member 108 to rotate in the third direction, so as to adjust the position of the center of gravity of the moving member 106, and thus the floor brush structure 100 can perform the action of wiping the dirt back and forth. Wherein the third direction is a rotational direction of the first driving member 108 relative to the outer roller 102.

Further, the runner 106 is rotatable about the axis of the outer drum 102 between a first position and a second position. It should be noted that the first position and the second position are two positions in which the maximum angle can be achieved when the operation member 106 rotates around the outer drum 102. That is, the runnability component 106 can be swung around the axis of the outer drum 102 between a first position and a second position. Furthermore, the balance member 104 is located outside the circumferential range formed by the first position and the second position, i.e., the balance member 104 is located at a radius where the operation member 106 swings smaller than the radius where the balance member 104 rotates, and the two members do not interfere with each other when moving, and thus can rotate at the same time.

Further, the balance member 104 and the operation member 106 are arc-shaped. The axis of the balance member 104 is collinear with the axis of the runnability component 106 and the axis of the outer drum 102. It can be understood that the three are coaxial, so that the arrangement of the moving structure in the outer roller 102 can be simplified, and the interference between the three can be avoided to the maximum extent.

In addition, the center of gravity of the arc-shaped structure is offset from the axis position, so that a centrifugal force can be effectively formed during rotation, and a vibration effect on dirt is generated during cleaning of the floor brush structure 100.

Further, the radial positions of the balance member 104 and the operation member 106 with respect to the axis of the outer drum 102 are different, so that the positions in the radial direction may overlap, enabling the synchronous rotation without interference.

Further, as shown in fig. 3, the floor brush structure 100 further includes a housing 120, and the outer drum 102 is disposed in the housing 120. The housing 120 has a first hole 122 and a second hole 124 at opposite sides thereof, respectively, and the medium can flow into the housing 120 through the first hole 122 and be discharged to the outside through the second hole 124 by the outer drum 102.

Generally, the floor brush structure 100 can be used in a vacuum cleaner, and the outer roller 102 within the floor brush structure 100 can be rotated to perform a sweeping or brushing-like action to clean the floor. In addition, the housing 120 is provided with a first hole 122 and a second hole 124 on both sides, so that negative air pressure can be applied to the floor brush structure 100, and the medium on the floor can be sucked from the first hole 122 and discharged into the second hole 124 for collection.

Because the outer roller 102 can move through the inner structure, the floor brush structure 100 can form variable pressure on the ground, and stubborn stains on the ground can be intensively cleaned.

Further, the number of the outer rollers 102 of the floor brush structure 100 is two, and the outer rollers are disposed at both sides of the first hole 122, and the rotation directions thereof are opposite. When the outer roller 102 rotates, a sweeping or brushing action can be performed on the ground, so that the medium such as dirt, debris, sundries on the ground is carried away from the ground and into the housing 120. It is apparent that when the two outer drums 102 are rotated at the same time, it is easier to bring the media into the inside of the housing 120, and to the second hole 124 and then to be discharged outside, because the rotation directions thereof are opposite. The two outer drums 102 can collect the medium inside the casing 120 more effectively than the structure having only one outer drum 102.

In another specific embodiment, two outer rollers 102 are respectively disposed in the front-back direction of the housing 120, and can drive the medium into the housing 120 during cleaning. Generally, the track of the floor brush structure 100 moves back and forth when the floor brush structure 100 performs cleaning. Therefore, the two outer drums 102 are disposed in tandem, and the media can be effectively prevented from falling down at the time of cleaning.

Example eight

As shown in fig. 4, the dust suction device 200 of the present embodiment includes a dust suction link 202, and a floor brush structure 100 is disposed at one end of the dust suction link 202, and the floor brush structure 100 can better suck dust when the dust suction device 200 cleans dust on the floor. Further, the vacuum cleaner 200 includes a main body 204 and a handle 206. The main unit 204 is disposed on a link of the dust suction apparatus 200, and is used for controlling operations of various structures in the dust suction apparatus 200. A handle 206 is provided at the other end of the dust extraction link 202 remote from the brush arrangement 100, and a user can use the dust extraction apparatus 200 to clean the floor by holding the handle 206 when in use.

In addition, the dust collection connecting rod 202 includes any one of the floor brush structures 100 in the above embodiments, so that any beneficial effect in any one of the above embodiments is achieved, and details are not repeated herein.

Example nine

As shown in fig. 1, the present embodiment provides a floor brush structure, which includes an outer roller (i.e., the outer roller 102), a balance half-cylinder (i.e., the balance member 104), a motion half-cylinder (i.e., the operation member 106), an actuator (e.g., a motor, a solenoid valve, etc.), and the outer roller may be a structure such as flocked hair, fluff, etc.

The principle of the center of gravity among the outer roller, the balance half cylinder and the dynamic half cylinder in the floor brush structure is shown in figure 5, wherein m is₁To balance the mass of the half cylinder, m₂For moving half cylinder masses, m_cSynthesizing equivalent mass for two half cylinders, wherein alpha is the included angle between the gravity center of the synthesis cylinder and the reference coordinate system of the gravity center of the balance half cylinder, and beta is the included angle between the gravity center of the motion half cylinder and the reference coordinate system of the gravity center of the balance half cylinder, as shown in the figure m₁Has a polar coordinate of (0, r)₁)，m₂Has a polar coordinate of (β, r)₂) From the coordinates and masses of the two half cylinders, m can be calculated_cHas polar coordinates of (alpha, r)_c) And then the generated exciting force is obtained according to the formula of the exciting force as follows:

F＝m_cr_cw²，

wherein, F is the exciting force, and w is the rotation angular velocity of the motor.

FIG. 5, FIG. 6, FIG. 7 and FIG. 8 show the operation principle of the inner and outer drum coordination control when the outer drum (i.e. the outer drum 102) of the floor brush structure is detected to rotate to the angle θ₁And when the angle theta is an included angle between a gravity center reference coordinate system of the balance half cylinder and the vertical direction of the ground, the actuating mechanism controls the moving half cylinder to rotate anticlockwise, and the target is controlled to move to a required angle according to the eccentric moment. When the outer cylinder moves to the angle theta₂When the friction force is generated, the exciting force is vertical to the ground, and the generated friction force is maximum. The outer cylinder continues to rotate to the angle theta₃And when the system is in a state of being in a neutral state, the actuating mechanism controls the motion half cylinder to rotate clockwise, the balance state is recovered, and the eccentric control of the system is finished. Thereby realizing average maximum pressurization control within one period of the outer cylinder, and controlling the angular amplitude to be theta₃-θ₁。

In another specific application scenario, when the floor brush structure encounters a stain which needs to be cleaned intensively, the relative position of the outer cylinder and the balance half cylinder is controlled by the dust collector to be locked, the moving half cylinder is controlled by the actuating mechanism to do reciprocating motion, forward acting force as shown in fig. 9, downward acting force as shown in fig. 10 and backward acting force as shown in fig. 11 are respectively realized, and therefore the action of wiping the stain forwards and backwards by the rolling brush is realized. The erased force-time curve can be analyzed into a position control track planning target curve of the motor, so that the structure can realize intelligent force curve control.

In sum, the floor brush structure generates ground cleaning force pressurization through an eccentric structure, so that the cleaning capability of the floor brush in the process of stubborn dirt and stains can be effectively improved, and the dust removal effect of the dust collector is enhanced. In addition, the eccentric structure is controlled through the actuator, so that the timing and positioning eccentric control can be realized, and the problem of insufficient experience of eccentric vibration to a user is effectively solved. The ground brush structure in the embodiment can realize intelligent force curve control through a double-motor synchronous control strategy, and meets more diversified and complicated application scenes.

The ground brush structure in this embodiment can realize the fixed point and to ground pressure boost. The actuator structure automatically controls eccentricity without human intervention. The double motors are synchronously controlled to realize an intelligent torque curve. According to the design, derivative control such as up-and-down vibration beating, backward or forward power assisting and the like is realized.

According to the embodiment of the floor brush structure and the dust collection device, the integral gravity center of the floor brush structure is controlled, so that the gravity center of the rolling brush assembly can be continuously adjusted according to a preset function, and further, the pressure which is continuously changed is formed on the ground, and the floor brush structure vibrates stubborn dirt when dust is collected and cleaned, so that the cleaning capability is improved.

In the present invention, the terms "first", "second", and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; the term "plurality" means two or more unless expressly limited otherwise. The terms "mounted," "connected," "fixed," and the like are to be construed broadly, and for example, "connected" may be a fixed connection, a removable connection, or an integral connection; "coupled" may be direct or indirect through an intermediary. The specific meanings of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", "front", "rear", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or unit must have a specific direction, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

In the description herein, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A floor brush structure, comprising:

the main part, and locate round brush subassembly in the main part, the round brush subassembly includes:

an outer drum;

the balance piece is arranged in the outer roller and connected with the outer roller;

the running part is arranged in the outer roller and can move circumferentially relative to the outer roller,

wherein the center of gravity of the runner is not coincident with the center of gravity of the outer drum, and the center of gravity of the roll brush assembly is located on the axis of the outer drum when the runner and the balance are located at opposite positions within the outer drum.

2. The floor brush structure of claim 1, further comprising:

the first driving part is arranged on the outer roller and is in transmission connection with the operating part to drive the operating part to move.

3. The floor brush structure of claim 2, further comprising:

the attitude sensor is used for acquiring an attitude angle formed by the center line of the balance piece and the extension line of the gravity center of the outer roller along the gravity direction;

and the controller is electrically connected with the first driving piece and the attitude sensor and is used for controlling the operation of the first driving piece according to the attitude angle.

4. A floor brush structure according to claim 3,

when the attitude angle is a first angle, the controller controls the first driving piece to rotate in a first direction;

when the attitude angle is a second angle, the controller controls the first driving piece to rotate in a second direction,

the first direction is opposite to the second direction, and the center line of the balance piece corresponding to the first angle and the center line of the balance piece corresponding to the second angle are respectively positioned on two sides of the center of gravity of the outer drum along the extension line of the gravity direction.

5. A floor brush structure according to claim 3, further comprising:

the second driving piece is connected with the outer roller and used for driving the outer roller to rotate.

6. The floor brush structure of claim 5, further comprising:

a command receiving device electrically connected with the controller,

the second driving piece is electrically connected with the controller, and the controller is further used for controlling the second driving piece to keep the current posture of the outer roller and controlling the first driving piece to rotate along a third direction according to the fixed-point cleaning instruction received by the instruction receiving device.

7. The floor brush structure of claim 6, further comprising:

and the timer is electrically connected with the controller and used for determining the rotation time of the operating part, and the controller can control the operation of the first driving part according to the rotation time.

8. A floor brush structure according to claim 1, wherein the runner is rotatable about the axis of the outer drum between a first position and a second position, the counterweight being located outside the circumferential extent formed by the first position and the second position.

9. A floor brush structure according to claim 8 wherein said balance member is arcuate and said runner is arcuate, the axes of said balance member, said runner and said outer drum being collinear.

10. A floor brush arrangement according to claim 9, wherein the balance member and the runner are at different radial positions relative to the axis of the outer drum.

11. A floor brush structure according to claim 1, comprising:

a housing, the housing being provided with the outer drum therein,

the medium can flow into the shell through the first holes and is discharged outwards through the second holes under the action of the outer roller.

12. The floor brush structure of claim 11, wherein the number of the outer rollers is two, the two outer rollers are respectively disposed at both sides of the first hole,

wherein the two outer drums rotate in opposite directions.

13. A floor brush structure as claimed in claim 11, wherein two of said outer drums are provided in said housing in a front-to-rear direction.

14. A dust extraction, comprising:

a dust collection connecting rod;

the structure of any one of claims 1 to 13, provided at one end of the dust suction link.

15. The suction device of claim 14, further comprising:

the main machine is arranged on the dust collection connecting rod;

the handle is arranged at the other end, far away from the floor brush structure, of the dust collection connecting rod.