WO2023185571A1

WO2023185571A1 - Rolling brush, rolling brush assembly, and cleaning device and control method therefor

Info

Publication number: WO2023185571A1
Application number: PCT/CN2023/083024
Authority: WO
Inventors: 李达; 刘璎皞; 许波建
Original assignee: 追觅创新科技(苏州)有限公司
Priority date: 2022-03-30
Filing date: 2023-03-22
Publication date: 2023-10-05

Abstract

A rolling brush, a rolling brush assembly, and a cleaning device and a control method therefor. The rolling brush comprises a body (22); the body (22) is provided with an inner wall (24) and an outer wall (26); the body (22) is provided with through grooves (28) penetrating through the inner wall (24) and the outer wall (26); and the inner wall (24) defines an accommodating space (30). The rolling brush assembly (36) comprises a first rolling brush (20) and a second rolling brush (38); the second rolling brush (38) comprises a second body (40) and a second cleaning portion (42) which are connected to each other; the rolling brush assembly (36) has a first working state and a second working state; in the first working state, the second rolling brush (38) is accommodated in the accommodating space (30); and in the second working state, the second cleaning portion (42) at least partially passes through the through grooves (28) and extends out of the outer wall (26). One rolling brush assembly (36) can implement two different cleaning functions to meet different cleaning requirements.

Description

A roller brush, roller brush assembly, cleaning device and control method thereof

This disclosure claims the priority of the following patent application: a Chinese patent application submitted to the China Patent Office on March 30, 2022, with the application number 202220733658.3 and the invention name "Rolling Brush, Rolling Brush Assembly, and Cleaning Device", filed on March 2022 A Chinese patent application with the application number 202210326142.1 and the invention name "Rolling Brush, Rolling Brush Assembly, Cleaning Device and Control Method" was submitted to the China Patent Office on March 30; the entire content of the above patent application is incorporated into this disclosure by reference.

【Technical field】

The invention belongs to the field of cleaning technology, and specifically relates to a roller brush; the invention also relates to a roller brush assembly; the invention also relates to a cleaning device provided with a roller brush assembly and a control method of the cleaning device.

【Background technique】

Cleaning devices with roller brushes have higher cleaning efficiency. At the same time, in order to meet the needs of different application scenarios, cleaning devices are usually equipped with different roller brushes. For example, a wet mop roller brush is used for mopping the floor; a sweeping roller brush is used for sweeping the floor.

In the existing technology, different roller brushes need to be replaced manually, and the user experience needs to be further improved.

[Content of the invention]

Therefore, the technical problem to be solved by the present invention is to improve the roller brush structure so as to realize automatic switching of different roller brushes.

In order to solve the above technical problems, the present invention provides a roller brush, which includes a body, the body has an inner wall and an outer wall, the body has a through groove penetrating the inner wall and the outer wall, and the inner wall surrounds it to form a receiving space.

Preferably, the number of the through grooves is at least two, and the at least two through grooves are circumferentially spaced apart.

Preferably, the through-groove includes a connected first groove and a second groove, and the first groove and the second groove are arranged at an angle; or, the through-groove extends spirally.

The present invention also provides a roller brush assembly, which includes any one of the above roller brushes, Any one of the above roller brushes is defined as a first roller brush. The roller brush assembly also includes a second roller brush. The second roller brush includes a connected second body and a second cleaning part. The roller brush assembly It has a first working state and a second working state: in the first working state, the second roller brush is accommodated in the receiving space, and the first roller brush performs a cleaning task; in the second working state, The second cleaning part at least partially passes through the through groove and extends out of the outer wall, and the second roller brush performs a cleaning task.

Preferably, in the second working state, the first roller brush and the second roller brush rotate synchronously, and the axis of the first roller brush is parallel to the axis of the second roller brush; the first roller brush The relative movement of the roller brush and the second roller brush in the radial direction causes the roller brush assembly to switch between the first working state and the second working state.

The present invention also provides a cleaning device. The cleaning device includes any of the above-mentioned roller brush components. The cleaning device further includes driving the roller brush component in the first working state and the second working state. switching between drives.

Preferably, the driving device includes a first driving device that drives the first rolling brush and a second driving device that drives the second rolling brush, and the first driving device and the second driving device are spaced apart.

Preferably, the first driving device and the second driving device have the same structure.

Preferably, the first driving device and the second driving device are respectively disposed on both end sides of the roller brush assembly.

Preferably, the first driving device includes a motor and a first rotational driving mechanism driven by the motor, and the first rotational driving mechanism drives the first roller brush to rotate; the first driving device further includes a first rotational driving mechanism driven by the motor. The motor-driven second rotational driving mechanism and the reciprocating driving mechanism clutch-connected to the second rotational driving mechanism. When the reciprocating driving mechanism is engaged with the second rotational driving mechanism, the reciprocating driving mechanism drives the third rotational driving mechanism. A rotary driving mechanism moves linearly so that the second cleaning part at least partially passes through the through groove and extends out of the outer wall.

Preferably, when the output shaft of the motor outputs the first direction, the reciprocating drive mechanism is separated from the second rotation drive mechanism; when the output shaft of the motor outputs the second direction, the motor drives the second rotational drive mechanism. The rotary drive mechanism is brought close to the reciprocating drive mechanism to engage the two.

Preferably, the second rotational driving mechanism includes a meshed helical gear and a ratchet. An end surface of the ratchet is provided with a clutch that is clutch-connected to the reciprocating driving mechanism. The output of the motor When the shaft outputs the second direction, the helical gear drives the ratchet to move axially, so that the second rotational driving mechanism is connected to the reciprocating driving mechanism.

A control method for any one of the above cleaning devices, the control method includes the following steps: receiving a cleaning instruction from a user; controlling one of the first roller brush and the second roller brush to perform a cleaning task according to the cleaning instruction .

Preferably, the control method further includes the following step: when one of the first roller brush and the second roller brush completes the cleaning task, controlling the other of the first roller brush and the second roller brush to perform the cleaning task.

The technical solution provided by the present invention has the following advantages:

1. The roller brush provided by the present invention has a receiving space that can accommodate other components, thereby making full use of the space of the body. The through-grooves penetrating the inner wall and the outer wall can allow at least part of other components accommodated in the accommodating space to pass through the through-grooves.

2. In the roller brush assembly provided by the present invention, the first roller brush and the second roller brush can divide the work. For example, the first roller brush realizes the function of wet mopping, and the second roller brush realizes the function of cleaning. One roller brush assembly can realize both functions. A variety of different cleaning functions meet different cleaning needs, greatly improving the user experience.

3. The cleaning device and its control method provided by the present invention realize switching between two working states through the driving device without human operation, which can improve user experience.

[Picture description]

In order to more clearly explain the specific embodiments of the present invention or the technical solutions in the prior art, the drawings that need to be used in the description of the specific embodiments or the prior art will be briefly introduced below. It is obvious that the drawings in the following description These are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without exerting creative efforts.

Figure 1 is a schematic three-dimensional structural diagram of a roller brush provided by the present invention;

Figure 2 is a schematic three-dimensional structural diagram of the roller brush assembly provided by the present invention;

Figure 3 is a comparative schematic diagram of the two working states of the roller brush assembly shown in Figure 2;

Figure 4 is a partial structural schematic diagram of the cleaning device provided by the present invention;

Figure 5 is a schematic three-dimensional structural diagram of the driving device of the cleaning device shown in Figure 4;

Figure 6 is a schematic three-dimensional structural diagram of the ratchet wheel of the driving device shown in Figure 5;

Fig. 7 is a schematic diagram of the control steps of the control method of the cleaning device provided by the present invention.

Explanation of reference symbols:
20-first roller brush; 22-body; 24-inner wall; 26-outer wall; 28-through groove; 30-accommodating space;
32-First slot; 34-Second slot; 36-Rolling brush assembly; 38-Second roller brush; 40-Second body; 42-Second cleaning part; 44-First driving device; 46-Second drive Device; 48-first rotary drive mechanism; 50-second rotary drive mechanism; 52-reciprocating drive mechanism; 54-center wheel; 56-first gear; 58-second gear; 60-helical gear; 62-ratchet; 64-first clutch part; 66-helical surface; 68-vertical surface; 70-moving part; 72-fixed part; 74-second clutch part; 76-eccentric pin; 78-mating part; 80-rod part; 82-Waist groove.

【Detailed ways】

The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some, not all, of the embodiments of the present invention. The present invention will be described in detail below with reference to the accompanying drawings and embodiments. It should be noted that, as long as there is no conflict, the embodiments and features in the embodiments of the present invention can be combined with each other.

It should be noted that the terms "first", "second", etc. in the description and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

In the present invention, unless otherwise specified, the directional words used such as "up, down, top, bottom" usually refer to the direction shown in the drawings, or refer to the vertical or vertical position of the component itself. Vertically or in the direction of gravity; similarly, for ease of understanding and description, "inside and outside" refers to the inside and outside relative to the outline of each component itself, but the above directional terms are not used to limit the present invention.

Please refer to Figure 1. This embodiment provides a roller brush, including a body 22. The body 22 has an inner wall 24 and an outer wall 26. The body 22 has a through groove 28 penetrating the inner wall 24 and the outer wall 26. The inner wall 24 is surrounded by a receiving space 30.

The receiving space 30 formed by the inner wall 24 can be used to accommodate other components, thereby making full use of the space of the body 22 . The outer wall 26 forms a cleaning part, or an additional cleaning part is installed on the outer wall 26. Therefore, when the body 22 rotates, it drives the cleaning part to achieve cleaning. For example, the outer wall 26 can cover a cleaning cloth, and through the contact between the cleaning cloth and the ground, it can be achieved For cleaning the floor, it is easy to replace the cleaning cloth. Furthermore, the cleaning cloth can be a wet mop, so that wet mopping of the ground can be achieved. It should be noted that What is important is that the through-groove 28 should be exposed when the cleaning cloth is wrapped.

The through groove 28 penetrating the inner wall 24 and the outer wall 26 allows at least a portion of other components accommodated in the receiving space 30 to pass through the through groove 28 .

The number of the through grooves 28 is at least two, and the at least two through grooves 28 are circumferentially spaced. The circumferentially spaced through grooves 28 allow other components to selectively and more conveniently pass through the through grooves 28 , that is to say, other components can selectively pass through any of the through grooves 28 , making the operation simpler.

In this embodiment, the through groove 28 includes a connected first groove 32 and a second groove 34, and the first groove 32 and the second groove 34 are arranged at an angle. Specifically, the first groove 32 and the second groove 34 are connected and arranged at an obtuse angle. Compared with the linearly extending through groove 28, the extending length of the through groove 28 in this embodiment is longer, which can make other components more secure. More extends out of the through slot 28 . Those skilled in the art can imagine that the through groove 28 can extend spirally along the circumferential direction of the body 22. Of course, the through groove 28 can also be a plurality of through holes, etc. Any solution that is the same or similar to the present embodiment is covered by the present invention. within the scope of protection.

Referring to FIG. 2 , this embodiment provides a roller brush assembly 36 . The roller brush assembly 36 includes the roller brush. For convenience of subsequent description, the roller brush is defined as the first roller brush 20 . The roller brush assembly 36 also includes a second roller brush 38 , and the second roller brush 38 includes a connected second body 40 and a second cleaning part 42 . The second cleaning part 42 may be bristles, or may be an integrally formed rubber strip, etc., which will not be described in detail. Any solution that is the same or similar to the present embodiment is covered by the protection scope of the present invention.

Please combine Figure 2 and Figure 3. The roller brush assembly 36 has a first working state and a second working state. In the first working state shown on the left side of Figure 3, the second roller brush 38 is accommodated in the space formed by the first roller brush 20. In the receiving space 30, only the first roller brush 20 is in the working state at this time, performing the cleaning task; in the second working state shown on the right side of Figure 3, the second cleaning part 42 of the second roller brush 38 at least partially passes through the through groove. 28 and extends out of the outer wall 26 of the first roller brush 20. At this time, the second roller brush 38 is in the working state and performs the cleaning task.

That is to say, the outer diameter of the second roller brush 38 is smaller than the diameter of the inner wall 24 of the first roller brush 20. In the first working state, the second roller brush 38 is accommodated in the receiving space 30, and the first roller brush 20 can contact the first roller brush 20 to be cleaned. The surface to be cleaned can be cleaned with the cleaning part of the first roller brush 20 (ie, the outer wall of the first roller brush 20 ); in the second working state, the second cleaning part 42 at least partially passes through the through groove 28 and extends out of the outer wall 26 , at this time, the second cleaning part 42 can contact the surface to be cleaned, and the second roller brush 38 can be used to clean the surface to be cleaned. At this time, the first roller brush 20 does not contact the surface to be cleaned.

With this arrangement, the first roller brush 20 and the second roller brush 38 can divide the work. For example, the first roller brush 20 can realize the function of wet mopping, and the second roller brush 38 can realize the function of cleaning. One roller brush assembly 36 can realize two different functions. Different cleaning functions meet different cleaning needs, greatly improving the user experience.

Moreover, when switching between different working states, only the first roller brush 20 and the second roller brush 38 need to move relative to each other in the radial direction to cause the second cleaning part 42 to retract the storage space 30, or to allow the second cleaning part 42 to pass through The through groove 28 only needs to extend out of the receiving space 30. There is no need to disassemble and assemble the entire roller brush, and the switching operation is very simple.

In the first working state, the second roller brush 38 is entirely accommodated in the receiving space 30 of the first roller brush 20, and the first roller brush 20 can be driven to rotate to realize the cleaning function. The second roller brush 38 is preferably connected with the first roller brush 20. The roller brush 20 rotates synchronously, and the second roller brush 38 does not need to rotate, as long as the second roller brush 38 remains within the receiving space 30 of the first roller brush 20 .

In the second working state, the second cleaning portion 42 of the second roller brush 38 at least partially passes through the through groove 28 and extends out of the outer wall 26 of the first roller brush 20, and the first roller brush 20 and the second roller brush 38 rotate synchronously. The first roller brush 20 and the second roller brush 38 can be made relatively stationary in the circumferential direction, so that the first roller brush 20 will not affect the normal operation of the second roller brush 38, and the design is very reasonable.

For the convenience of subsequent description, the rotation axis of the first roller brush 20 is defined as the first axis, and the rotation axis of the second roller brush 38 is defined as the second axis. The first axis and the second axis are parallel, the two axes are parallel, the structure is regular, and The structure of the roller brush assembly 36 can be miniaturized, making it more convenient to use.

The relative movement of the first axis and the second axis along the radial direction can cause the roller brush assembly 36 to switch between the first working state and the second working state. The switching operation is very simple. For example, if the first roller brush 20 remains stationary and the cleaning portion of the second roller brush 38 is aligned with the through groove 28 and moves radially outward, the roller brush assembly 36 can be switched from the first working state to the second working state. Of course, those skilled in the art can understand that the second roller brush 38 remains stationary, and the first roller brush 20 can move radially inward, or the first roller brush 20 and the second roller brush 38 can also move radially relative to each other at the same time. Implementation of switching between the first working state and the second working state, etc. will not be described in detail. Any solution that is the same or similar to this embodiment is covered by the protection scope of the present invention.

Please return to FIGS. 1 and 2 . As mentioned above, the number of the through grooves 28 is at least two, and the at least two through grooves 28 are arranged circumferentially at intervals. Preferably, the number of the second cleaning parts 42 of the second roller brush 38 is at least two, and the at least two second cleaning parts 42 are arranged at intervals in the circumferential direction of the second body 40 . Please combine Figure 2 and Figure 3. After switching from the first working state to the second working state, only part of the second cleaning part 42 of the second roller brush 38 extends out of the through groove 28 to clean the surface to be cleaned, while the other part of the cleaning part Contained in containment space 30. Long-term use may cause wear of this part of the frequently used cleaning part. Therefore, the relative angle of the second roller brush 38 and the first roller brush 20 in the rotation direction can be regularly changed, so that different second cleaning parts can be periodically used. The part 42 extends out of the through groove 28 to clean the surface to be cleaned, so that the cleaning effect of the second roller brush 38 is longer and the service life is longer. For example, in the same cleaning task, different second cleaning parts can be adjusted at a specified frequency. 42 Perform cleaning tasks. For example, the specified frequency can be 5 minutes, 10 minutes, etc., without limitation. In another example, different second cleaning parts 42 can also be adjusted sequentially and sequentially according to the cleaning task to perform the cleaning task.

As mentioned above, in the first working mode, the first roller brush 20 rotates, and the second roller brush 38 can rotate synchronously with the first roller brush 20 or not. If the second roller brush 38 and the first roller brush 20 always rotate synchronously, there is no relative rotation between the two, and radial movement switching is easier; if in the first mode, the second roller brush 38 is stationary, and only the first roller brush 20 rotation, when switching, it is necessary to first confirm that the second cleaning part 42 of the second roller brush 38 is aligned with the through groove 28. Relatively speaking, when switching, an additional confirmation and adjustment process is required, but it can be done on the first roller brush. 20 The energy consumption of the second roller brush 38 is reduced during operation, which is more environmentally friendly.

Referring to Figure 4, this embodiment provides a cleaning device. The cleaning device includes a roller brush assembly 36. The cleaning device further includes a driving device that drives the roller brush assembly 36 to switch between a first working state and a second working state. As a result, the switching between the two working states is realized through the driving device without human operation, which can improve the user experience.

The driving device includes a first driving device 44 that drives the first rolling brush 20 and a second driving device 46 that drives the second rolling brush 38. The first driving device 44 and the second driving device 46 are spaced apart. That is to say, setting the driving devices of the first roller brush 20 and the second roller brush 38 separately not only makes the structure of the two driving devices simpler and the driving more reliable, but also facilitates separate control to meet different control requirements, such as In a working state, the first roller brush 20 needs to rotate, while the second roller brush 38 can rotate or be stationary. Separate control devices make the control of the entire cleaning device simpler.

The first driving device 44 and the second driving device 46 are respectively disposed on both end sides of the roller brush assembly 36 . The two driving devices are respectively provided at the two end sides of the roller brush assembly 36, which not only prevents mutual interference, but also makes the structural layout of the entire cleaning device more regular and balanced, thereby making the cleaning device more reliable to use.

The first driving device 44 and the second driving device 46 have the same structure. The structure of the two driving devices is the same, the design is simpler, and the costs of design, mold opening, and assembly can be reduced.

The following description takes the first driving device 44 as an example.

Please combine Figure 4 and Figure 5. The first driving device 44 includes a motor (not shown) and a first rotation driving mechanism 48 driven by the motor. The first rotation driving mechanism 48 drives the first roller brush 20 to rotate; the first driving device 44 also includes a second rotation driving mechanism 50 driven by a motor, and a second rotation driving mechanism 50 separated from the second rotation driving mechanism 50. When the reciprocating driving mechanism 52 is connected to the second rotating driving mechanism 50, the reciprocating driving mechanism 52 drives the first rotating driving mechanism 48 to move linearly.

That is to say, the first driving device 44 can not only drive the first roller brush 20 to rotate so that it can exert its cleaning function, but also drive the first roller brush 20 to move linearly, so that the first roller brush 20 moves relative to the second roller brush 38 Relative movement in the radial direction enables switching between two working states, improving the efficiency and reliability of switching between different working modes.

The second rotational driving mechanism 50 is clutch-connected with the reciprocating driving mechanism 52, that is, the two have a separated state and an engaged state. In the separated state, the second rotational driving mechanism 50 is spaced apart from the reciprocating driving mechanism 52 , and the second rotational driving mechanism 50 cannot drive the reciprocating driving mechanism 52 , thereby preventing the reciprocating driving mechanism 52 from affecting the normal rotational cleaning function of the first roller brush 20 . In the engaged state, the second rotary driving mechanism 50 is engaged with the reciprocating driving mechanism 52 and allows the reciprocating driving mechanism 52 to drive the first rotary driving mechanism 48 to move linearly, thereby driving the entire first driving device 44 to move linearly to achieve two working states. switching, the design is very reasonable.

When the motor rotates around the first direction, the reciprocating drive mechanism 52 and the second rotary drive mechanism 50 are in a separated state; when the motor rotates around the second direction, the motor drives the second rotary drive mechanism 50 to approach the reciprocating drive mechanism 52 to switch from the clutch state to the reciprocating drive mechanism 50 . Engaged state. That is to say, by switching the rotation direction of the motor, the engagement state and the separation state of the second rotation drive mechanism 50 and the reciprocating drive mechanism 52 can be switched, and the control is very simple.

Specifically, please focus on FIG. 5 . The first driving device 44 includes a center wheel 54 driven by a motor (not shown). The motor drives the first rotational driving mechanism 48 and the second rotational driving mechanism 50 to rotate through the central wheel 54 .

The first rotation driving mechanism 48 includes a first gear 56 meshed with the center wheel 54. The first gear 56 can drive the first roller brush 20 to rotate accordingly. The linkage mechanism between the first gear 56 and the first roller brush 20 can be set as needed, and will not be described again.

The second rotation driving mechanism 50 includes a second gear 58 meshing with the center wheel 54 , a helical gear 60 coaxially disposed with the second gear 58 , and a ratchet 62 meshing with the helical gear 60 . When the helical gear 60 rotates in the first direction, the helical gear 60 cannot drive the ratchet 62 to produce linear movement in the axial direction; when the helical gear 60 rotates in the second direction, it can drive the ratchet 62 to produce linear movement in the axial direction. One end surface of the ratchet wheel 62 is provided with a first clutch member 64 that is clutch-connected to the reciprocating drive mechanism 52 .

Please combine Figure 5 and Figure 6. The first clutch member 64 is slope-shaped and includes a circumferentially extending spiral surface 66. A vertical surface 68 connected to the spiral surface 66 and perpendicular to the end surface of the ratchet wheel 62 . The spiral surface 66 facilitates the first clutch member 64 to engage with the reciprocating drive mechanism 52 during rotation, and the vertical surface 68 enables the ratchet 62 to engage with the reciprocating drive mechanism 52 in a circumferential fixed manner. The design is very reasonable. The number of the first clutch members 64 is at least two, and the at least two first clutch members 64 are evenly spaced in the circumferential direction, so that the engagement is more reliable.

The reciprocating driving mechanism 52 includes a moving part 70 and a fixed part 72 that is eccentrically connected to the moving part 70 . The end surface of the moving member 70 facing the ratchet wheel 62 is provided with a second clutch member 74. The shape and number of the second clutch member 74 are the same as those of the first clutch member 64, so that the second clutch member 74 can engage with the first clutch member 64 conveniently and reliably. catch. Therefore, when the motor outputs rotation around the second direction, the helical gear 60 drives the ratchet 62 to move in the axial direction, so that the first clutch member 64 and the second clutch member 74 are engaged, and the second rotation driving mechanism 50 can be driven. Reciprocating drive mechanism 52.

An eccentric pin 76 is provided on the end surface of the moving member 70 away from the ratchet wheel 62 . The fixing member 72 includes a fixedly connected, preferably integrally formed, mating portion 78 and a rod portion 80. The mating portion 78 is provided with a waist-shaped groove 82 that cooperates with the eccentric pin 76. The rod portion 80 extends longitudinally, and the waist-shaped groove 82 is The extending direction is perpendicular to the extending direction of the rod portion 80 . The rod part 80 is fixed relative to the housing of the cleaning device, so the rod part 80 and the mating part 78 are relatively fixed. When the eccentric pin 76 slides in the waist-shaped groove 82, it drives the engaged moving part 70, the second rotary driving mechanism 50, the center wheel 54, and the first rotary driving mechanism 48 as a whole to produce linear movement in the extending direction of the waist-shaped groove 82, thereby causing the second A roller brush 20 generates linear movement in its radial direction to facilitate the roller brush assembly 36 to switch between the first working state and the second working state.

As mentioned above, the structure and operating principle of the second driving device 46 are the same as those of the first driving device 44 and will not be described again.

The working process of the cleaning device of this embodiment is described below.

First working status:

When the motor output shaft of the first driving device 44 outputs rotation in the first direction, the center wheel 54 connected to the motor drives the first rotational driving mechanism 48 and the second rotational driving mechanism 50 to rotate. The first rotary drive mechanism 48 drives the first roller brush 20 to rotate to achieve cleaning. Although the second rotary drive mechanism 50 is also rotating, the helical gear 60 cannot drive the ratchet 62 to move in the axial direction. The second rotary drive mechanism 50 and the reciprocating The driving mechanism 52 is spaced apart, and the reciprocating driving mechanism 52 will not drive the output shaft of the first roller brush 20 to move radially, and the radial relative positions of the first roller brush 20 and the second roller brush 38 will not change. The working status will not switch.

At this time, the second roller brush 38 is located in the receiving space 30 of the first roller brush 20. If the second roller brush 38 38 is stationary, the second motor of the second driving device 46 is turned off, and the second driving device 46 does not work. If the second roller brush 38 rotates synchronously with the first roller brush 20, the second motor of the second drive device 46 is started. Since the structure and principle of the second drive device 46 are the same as those of the first drive device 44, the second drive device 46 46 driving result is that the second roller brush 38 rotates, but the relative position of the second roller brush 38 and the first roller brush 20 will not change, and the working state of the roller brush assembly 36 will not switch.

Switch:

The output shaft of the motor of the first driving device 44 outputs rotation in the second direction, and the center wheel 54 connected to the motor drives the first rotational driving mechanism 48 and the second rotational driving mechanism 50 to rotate in opposite directions. The first rotary drive mechanism 48 drives the first roller brush 20 to rotate in the reverse direction, and the helical gear 60 of the second rotary drive mechanism 50 drives the ratchet 62 to rotate in the reverse direction while causing its axial movement. The first clutch member 64 and the second The clutch member 74 is engaged, thereby engaging the ratchet 62 of the second rotary drive mechanism 50 with the moving part 70 of the reciprocating drive mechanism 52. The eccentric pin 76 of the moving part 70 slides in the waist-shaped groove 82, with the second rotary driving mechanism 50, The central wheel 54 and the first rotary driving mechanism 48 move in the extending direction of the waist-shaped groove 82, thereby causing the first roller brush 20 to move in the radial direction, and causing the first roller brush 20 to be radially opposite to the second roller brush 38. Movement, the second cleaning portion 42 of the second roller brush 38 at least partially passes through the through groove 28 of the first roller brush 20 and extends out of the outer wall 26 of the first roller brush 20, switching from the first working state to the second working state.

During the switching process, the first roller brush 20 will rotate in the opposite direction. Therefore, the first roller brush 20 will rotate and move radially at the same time. Therefore, the most accurate and quick switching method is to switch between the first working state and the second working state. , the first roller brush 20 and the second roller brush 38 both rotate synchronously. In this way, the first roller brush 20 and the second roller brush 38 have no relative position changes in the circumferential direction, thereby ensuring that the second roller brush 38 can operate accurately and reliably. When cleaning the surface to be cleaned, when switching, the first driving device 44 and the second driving device 46 rotate in reverse directions synchronously, and the first roller brush 20 and the second roller brush rotate in opposite directions synchronously and at the same time produce radial movement toward each other, switching. Accurate and fast.

Of course, if the second roller brush 38 and the first roller brush 20 do not rotate synchronously before switching, then before the switch, the rotational positions of the first roller brush 20 and/or the second roller brush 38 should be appropriately adjusted so that After the second cleaning part 42 of the second roller brush 38 is aligned with the through groove 28, the first driving device 44 and the second driving device 46 can be driven to rotate in the reverse direction synchronously, and switching can also be realized.

Furthermore, since the second cleaning part 42 has a certain elasticity, the first driving device 44 (or the second driving device 46) can be used to directly drive the first roller brush 20 (or the second roller brush 38) to rotate in reverse direction while generating The radial movement causes the first roller brush 20 and the second roller brush 38 to move relative to each other in the radial direction; then, The rotational position of the second roller brush 38 (or the first roller brush 20 ) may be slightly adjusted so that the second cleaning part 42 is aligned with the through groove 28 and at least partially passes through the through groove 28 .

In short, the first driving device 44 and/or the second driving device 46 cause the first roller brush 20 and/or the second roller brush 38 to move relative to each other in the radial direction. If necessary, by appropriately adjusting the first roller brush 20 and/or the second roller brush 38 . Or the rotation position of the second roller brush 38 can finally make the second cleaning part 42 of the second roller brush 38 at least partially pass through the through groove 28. Any solution that is the same or similar to the present embodiment is covered by the present invention. within the scope of protection.

Second working status:

The motor of the first driving device 44 outputs rotation in the first direction, driving the first roller brush 20 to rotate without causing relative movement in the radial direction. The motor of the second driving device 46 outputs rotation in the first direction, driving the second roller brush 38 Rotation does not produce relative movement in the radial direction; although the first roller brush 20 rotates, it is away from the surface to be cleaned, and the second cleaning portion 42 of the second roller brush 38 contacts the surface to be cleaned to clean the surface to be cleaned.

From this, it can be seen that the cleaning device of this embodiment can not only switch the roller brush assembly 36 between the first working state and the second working state, thereby selectively using the first roller brush 20 or the second roller brush 38 for cleaning. When the surface is to be cleaned, the motor rotates forward to drive the roller brush assembly 36 to work, and rotates reversely to switch modes. The operation is very simple.

This embodiment provides a control method for the cleaning device. The control method includes the following steps:

S1: Receive the user’s cleaning instructions;

S2: According to the cleaning instruction, control one of the first roller brush and the second roller brush to perform a cleaning task.

Preferably, the control method further includes the following steps:

S3: After one of the first roller brush and the second roller brush has completed the task, control the other of the first roller brush and the second roller brush to perform the cleaning task.

Specifically, the user issues a cleaning instruction through buttons or voice control. After receiving the user's cleaning instruction, the motor outputs rotation in the first direction to drive the roller brush assembly 36 to be in the first working state or the second working state, that is, according to the instruction. Cleaning tasks are carried out in the first roller brush or the second roller brush.

If the user issues an instruction to change the working roller brush (that is, the roller brush that performs cleaning tasks) through buttons or voice control, the motor is controlled to output rotation in the second direction to drive the first direction of the roller brush assembly 36 . The roller brush 20 and the second roller brush 38 produce relative motion in the radial direction to prepare for changing the working roller brush.

Subsequently, the motor outputs the movement in the first direction, driving the roller brush assembly 36 to be in the second working state or the first working state. That is to say, after the working roller brush is switched to the position, the motor continues to output the rotation in the first direction, so that the roller brush assembly 36 is in the second working state or the first working state. The brush assembly 36 uses the switched working roller brush to perform cleaning tasks. The specific driving of the second working state and the first working state is consistent with the foregoing description and will not be described again.

Therefore, in this control method, after receiving the user's instruction, the working state and switching of the working state of the roller brush assembly 36 can be controlled by simply changing the rotation direction of the motor, and the control is very simple.

Obviously, the above-described embodiments are only part of the embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, those of ordinary skill in the art can make other changes or modifications in different forms without making creative efforts, and all of them shall fall within the scope of protection of the present invention.

Claims

A roller brush includes a body, characterized in that: the body has an inner wall and an outer wall, the body has a through groove that penetrates the inner wall and the outer wall, and the inner wall surrounds it to form a receiving space.
The roller brush according to claim 1, wherein the number of the through grooves is at least two, and the at least two through grooves are arranged circumferentially at intervals.
The roller brush according to claim 1, characterized in that: the through-groove includes a connected first groove and a second groove, the first groove and the second groove are arranged at an angle; or, the through-groove is spiral extend.
A roller brush assembly, characterized in that: the roller brush assembly includes the roller brush described in any one of claims 1 to 3, and the roller brush described in any one of claims 1 to 3 is defined as the first roller brush, and the The roller brush assembly also includes a second roller brush, the second roller brush includes a connected second body and a second cleaning part, the roller brush assembly has a first working state and a second working state;

In the first working state, the second roller brush is received in the receiving space, and the first roller brush performs a cleaning task:

In the second working state, the second cleaning part at least partially passes through the through groove and extends out of the outer wall, and the second roller brush performs a cleaning task.
The roller brush assembly according to claim 4, wherein there are at least two second cleaning parts, and the at least two cleaning parts are arranged at intervals in the circumferential direction of the second body.
The roller brush assembly according to claim 5, wherein the at least two second cleaning parts extend out of the through groove in sequence at regular intervals.
The roller brush assembly according to claim 4, characterized in that: in the second working state, the first roller brush and the second roller brush rotate synchronously, and the axis of the first roller brush and the The axis of the second roller brush is parallel;

The relative movement of the first roller brush and the second roller brush in the radial direction causes the roller brush assembly to switch between the first working state and the second working state.
A cleaning device, characterized in that: the cleaning device includes the roller brush assembly according to any one of claims 4 to 7, and the cleaning device further includes driving the roller brush assembly in the first working state and the A driving device for switching between the second working state.
The cleaning device of claim 8, wherein the driving device includes a first driving device that drives the first roller brush and a second driving device that drives the second roller brush, and the first driving device The device is spaced apart from the second driving device.
The cleaning device according to claim 9, characterized in that:

The first driving device includes a motor and a first rotational driving mechanism driven by the motor, and the first rotational driving mechanism drives the first roller brush to rotate;

The first driving device further includes a second rotational driving mechanism driven by the motor, and a reciprocating driving mechanism clutch-connected to the second rotational driving mechanism; when the reciprocating driving mechanism is engaged with the second rotational driving mechanism , the reciprocating driving mechanism drives the first rotating driving mechanism to move linearly, so that the second cleaning part at least partially passes through the through groove and extends out of the outer wall.
The cleaning device according to claim 10, characterized in that:

When the output shaft of the motor outputs the first direction, the reciprocating drive mechanism is separated from the second rotation drive mechanism;

When the output shaft of the motor outputs the second direction, the motor drives the second rotational driving mechanism close to the reciprocating driving mechanism to engage the two.
The cleaning device according to claim 11, characterized in that: the second rotational driving mechanism includes a meshing helical gear and a ratchet, and an end surface of the ratchet is provided with a first clutch that is clutch-connected to the reciprocating driving mechanism. , when the output shaft of the motor outputs the second direction, the helical gear drives the ratchet to move in the axial direction, so that the second rotational driving mechanism is connected with the reciprocating driving mechanism.
The cleaning device according to claim 12, characterized in that: the reciprocating drive mechanism includes It includes moving parts and fixed parts that are drivingly connected to the moving parts.
The cleaning device according to claim 13, wherein the end surface of the moving member facing the ratchet wheel is provided with a second clutch member, and the second clutch member is engaged with the first clutch member.
The cleaning device according to claim 13, characterized in that: the end surface of the moving member away from the ratchet is provided with an eccentric pin, and the fixed member is provided with a waist-shaped groove that cooperates with the eccentric pin, and the eccentric pin Slide in the waist-shaped groove.
The cleaning device according to claim 15, comprising a housing, wherein the fixing member further includes a rod portion perpendicular to the extending direction of the waist-shaped groove, and the rod portion is fixedly mounted on the housing.
A control method for a cleaning device according to any one of claims 8 to 16, characterized in that: the control method includes the following steps:

Receive cleaning instructions from users;

According to the cleaning instruction, one of the first roller brush and the second roller brush is controlled to perform a cleaning task.
The control method according to claim 17, characterized in that: the control method further includes the following steps:

When one of the first roller brush and the second roller brush has completed the cleaning task, the other of the first roller brush and the second roller brush is controlled to perform the cleaning task.