Disc brush assembly, dust removal device and dust removal device control method

Abstract

The invention discloses a disc brush assembly, a dust removal device and a dust removal device control method, the disc brush assembly comprises a rotating shaft and a disc brush body, the rotating shaft is used for driving a disc brush to rotate, the disc brush assembly comprises a driving device, and the driving device can be connected with and separated from the disc brush body; when the driving device and the disc brush body are in a joint state, the driving device is used for driving the disc brush body to move relative to the rotating shaft, and an included angle is formed between the moving direction of the disc brush body and the axial direction of the rotating shaft; when the driving device and the disc brush body are in a separated state, the rotating shaft can drive the disc brush body to rotate. The driving device is connected with the disc brush body and drives the disc brush body to move relative to the rotating shaft, and blocking of the disc brush body to the cleaning blind area is reduced through movement of the disc brush body relative to the rotating shaft. The dust removal device is used for removing dust, impurities in the cleaning blind area can be taken away, the cleaning effect of the dust removal device is improved, and the use experience is improved.

Description

Technical Field

[0001] The invention provides a disc brush assembly, a dust removal device and a dust removal device control method. Background Art

[0002] There is an existing dust removal device, such as a sweeping robot or a vacuum cleaner, which uses a disc brush for cleaning. During the cleaning process of the disc brush, there will be a blind spot in the cleaning. When using a dust removal device to mop the floor, it is usually pushed and pulled back and forth in a straight line. During this process, debris may be stuck between the disc brush and the disc brush or between the disc brush and the housing. Therefore, during the use of the current dust removal device, it is necessary to use a brush to clean it in time; if it is not cleaned in time, it is easy to affect the cleaning effect of the dust removal device, resulting in a poor user experience. Summary of the invention

[0003] The technical problem to be solved by the present invention is to overcome the defect in the prior art that the disc brush has a cleaning blind spot, and the presence of debris in the cleaning blind spot will affect the cleaning effect of the disc brush, and provide a disc brush assembly, a dust removal device and a dust removal device control method.

[0004] The present invention solves the above technical problems through the following technical solutions:

[0005] A disc brush assembly, the disc brush assembly comprising a rotating shaft and a disc brush body, the rotating shaft is used to drive the disc brush to rotate, the disc brush assembly comprises a driving device, the driving device can be engaged with and separated from the disc brush body;

[0006] Wherein, when the driving device is in an engaged state with the disc brush body, the driving device is used to drive the disc brush body to move relative to the rotating shaft, and the moving direction of the disc brush body forms an angle with the axial direction of the rotating shaft;

[0007] When the driving device and the disc brush body are in a separated state, the rotating shaft can drive the disc brush body to rotate.

[0008] In this solution, the disc brush body is driven to rotate by the rotating shaft, and the disc brush body rotates in a circle for cleaning. At this time, the driving device and the disc brush body are in a separated state, and the driving device does not interfere with the circular rotation of the disc brush body. When the disc brush assembly needs to move, the driving device engages with the disc brush body and drives the disc brush body to move relative to the rotating shaft. When the disc brush body needs to rotate in a circle again, the driving device drives the disc brush body back to the working position and separates from the disc brush body. When the disc brush assembly is applied to a dust removal device, there is a cleaning blind spot between two adjacent disc brush bodies or between the disc brush body and the housing. After the disc brush assembly has been used for a period of time or when there are debris in the cleaning blind spot, the driving device engages with the disc brush body and drives the disc brush body to move relative to the rotating shaft to reduce the obstruction of the cleaning blind spot by the disc brush body. Dust removal by using the dust removal device can take away the debris in the cleaning blind spot. After cleaning the debris in the cleaning blind spot, the driving device drives the disc brush body back to the working position and separates from the disc brush body. The above arrangement is conducive to the cleaning effect of the dust removal device and improves the user experience.

[0009] Preferably, the disc brush assembly further comprises a detection element, and the detection element detects whether there is debris in the target area;

[0010] When the detection element detects the presence of foreign matter in the target area, the driving device engages with the disc brush body, and the driving device drives the disc brush body to move relative to the rotation axis.

[0011] In this solution, the target area is a blind cleaning area. The target area is detected by a detection element. When there is debris in the target area, the drive device can be timely engaged with the disc brush body and drive the disc brush body to move relative to the rotating shaft, reducing the shielding of the cleaning blind area by the disc brush body, and using the dust removal device to remove dust, timely remove debris in the cleaning blind area, and reduce the risk of debris affecting the cleaning effect of the dust removal device. At the same time, when there is no debris in the target area, the rotating shaft drives the disc brush body to rotate in a circle for cleaning, which is beneficial to the cleaning effect of the dust removal device and improves the user experience.

[0012] Preferably, the driving device comprises a connecting shaft, the disc brush body comprises a connecting portion, and the connecting shaft and the connecting portion are engageable and disengageable.

[0013] In the present solution, the driving device realizes engagement and disengagement with the disc brush body through the cooperation of the connecting shaft and the connecting part, which is beneficial to the connection reliability between the driving device and the disc brush body. When the driving device drives the disc brush body to move, the risk of the driving device loosening relative to the disc brush body can be reduced. The structural arrangement is simple, which facilitates the production of the disc brush assembly.

[0014] Preferably, the driving device further comprises a first driving part and a second driving part, wherein the first driving part drives the connecting shaft to move in a direction away from or close to the connecting part.

[0015] When the connecting shaft is in an engaged state with the connecting portion, the second driving portion drives the disc brush body to move relative to the rotating shaft.

[0016] In this solution, after the disc brush assembly has been used for a period of time or when there are debris in the cleaning blind area, the first driving part drives the connecting shaft to move in a direction close to the connecting part and engage with the connecting part, and the second driving part drives the disc brush body to move relative to the rotating shaft through the cooperation between the connecting shaft and the connecting part. The movement of the disc brush body relative to the rotating shaft reduces the shielding of the cleaning blind area by the disc brush body. Through the above arrangement, the disc brush assembly can automatically remove impurities in the cleaning blind area, which is beneficial to the cleaning effect of the disc brush assembly and greatly facilitates the use of the disc brush assembly.

[0017] Preferably, the driving device further comprises a screw motor, and the connecting shaft is a screw;

[0018] The driving device further comprises a first transmission part and a second transmission part, wherein the first transmission part is connected to the screw rod, and the second transmission part is fixedly arranged relative to the rotating shaft, and the screw rod motor drives the screw rod to rotate and move in a direction close to the connecting part;

[0019] When the screw rod is connected to the connecting part and moves to a preset position relative to the connecting part, the screw rod drives the first transmission part to move and cooperates with the second transmission part to drive the disc brush body to move, and the driving device drives the disc brush body to move;

[0020] When the lead screw moves to a limit position relative to the connecting portion, the lead screw motor stops driving the lead screw.

[0021] In this solution, after the disc brush assembly has been used for a period of time or when there are debris in the cleaning blind area, the screw motor drives the screw to move in the direction close to the connection part and engage with the disc brush body. After the screw engages with the connection part and moves to a preset position relative to the connection part, the screw cooperates with the first transmission part and drives the first transmission part to move. Since the screw rotates during the movement, the disc brush body is driven to move relative to the rotating shaft through the cooperation of the first transmission part and the second transmission part. By moving the disc brush body relative to the rotating shaft, the obstruction of the cleaning blind area by the disc brush body is reduced, and impurities in the cleaning blind area are removed, which is beneficial to the cleaning effect of the dust removal device and improves the user experience of the dust removal device.

[0022] Preferably, the screw rod is movable relative to the first transmission part, the connecting shaft includes a first matching part, and the first transmission part includes a second matching part. When the screw rod moves to the preset position, the first matching part moves toward the second matching part and matches with the second matching part. The screw rod drives the first transmission part to rotate through the matching of the first matching part and the second matching part.

[0023] The disc brush assembly further includes a limiting element, and the limiting element is used to detect whether the screw rod moves to the limit position relative to the connecting portion.

[0024] In this solution, during the process of the screw rod engaging with the connection part and moving to a preset position relative to the connection part, the first matching part moves in a direction close to the second matching part as the screw rod moves. When the screw rod moves to a preset position relative to the connection part, the screw rod motor drives the first transmission part to move through the cooperation between the first matching part and the second matching part, which is beneficial to the connection reliability between the screw rod and the first transmission part, reduces the risk of the screw rod loosening relative to the first transmission part, and is beneficial to the use experience of the disc brush assembly. When the screw rod moves to the extreme position relative to the connection part, the limit element detects that the screw rod has moved to the extreme position and can control the screw rod motor to stop, reducing the risk of damage to the disc brush assembly caused by the continued movement of the screw rod, which is beneficial to the use of the disc brush assembly.

[0025] Preferably, the first transmission part is a gear, the second transmission part is a rack, the gear is sleeved on the connecting shaft; the first matching part extends along the axial direction of the gear, the second matching part extends along the axial direction of the connecting shaft, and the first matching part is snap-connected with the second matching part.

[0026] In this solution, the gear and the rack mesh with each other, which is conducive to reliable transmission between the first transmission part and the second transmission part. The gear is sleeved on the connecting shaft, and the first matching part extends along the axial direction of the gear. When the connecting shaft moves to a preset position, the second matching part is engaged and connected with the first matching part as the connecting shaft moves in the axial direction of the connecting shaft, which is conducive to the connecting shaft driving the gear transmission. The above structure is easy to set up and is conducive to the production of the disc brush assembly.

[0027] Preferably, the driving device further comprises a positioning element, and the positioning element is used to detect whether the connecting shaft is aligned with the connecting portion;

[0028] When the connecting shaft is aligned with the connecting portion, the connecting shaft moves in a direction approaching the connecting portion.

[0029] In this solution, after the disc brush assembly has been used for a period of time or when there are debris in the cleaning blind area, the positioning element detects whether the connecting portion is in the moving direction of the connecting shaft. When the connecting portion is in the moving direction of the connecting shaft, the driving device engages with the disc brush body and drives the disc brush body to move relative to the rotating shaft. The above arrangement is conducive to the connection between the connecting shaft and the connecting portion, reduces the risk of damage to the end portion where the connecting shaft and the connecting portion are connected, and is conducive to the user experience of the disc brush assembly.

[0030] Preferably, the rotating shaft is slidably connected to the disc brush body, and one end of the rotating shaft connected to the disc brush body has two parallel planar side walls, and when the rotating shaft rotates until the planar side walls extend along the moving direction of the disc brush body, the disc brush body is movable relative to the rotating shaft.

[0031] In the present solution, through the above-mentioned arrangement, after the driving device engages with the disc brush body, it drives the disc brush body to slide relative to the rotating shaft. There is no need to set up additional motors and control elements to separate the rotating shaft from the disc brush body, which facilitates the structural arrangement of the disc brush assembly and is beneficial to the production of the disc brush assembly.

[0032] A dust removal device comprises a gear box and the above-mentioned disc brush assembly, wherein the gear box is used to drive the rotating shaft to rotate and drive the disc brush body to rotate.

[0033] In this solution, a motor and a transmission gear are arranged inside the gear box, and the gear box drives the rotating shaft to rotate. When the dust removal device is used to clean the floor, the disc brush body is driven to rotate by the rotating shaft, and the disc brush body rotates in a circle for cleaning. At this time, the driving device and the disc brush body are in a separated state, and the driving device does not interfere with the circumferential rotation of the disc brush body. There is a cleaning blind spot between two adjacent disc brush bodies or between the disc brush body and the shell. After the disc brush assembly has been used for a period of time or when there are debris in the cleaning blind spot, the driving device engages with the disc brush body and drives the disc brush body to move relative to the rotating shaft. By moving the disc brush body relative to the rotating shaft, the obstruction of the cleaning blind spot by the disc brush body is reduced. Using the dust removal device for dust removal can take away the debris in the cleaning blind spot. After cleaning the debris in the cleaning blind spot, the driving device drives the disc brush body back to the working position and separates from the disc brush body. The above-mentioned arrangement is conducive to the cleaning effect of the dust removal device and improves the user experience.

[0034] A dust removal device control method, the dust removal device control method is used for the above-mentioned dust removal device, the dust removal device control method comprises the following steps:

[0035] S10, stopping the rotation of the rotating shaft;

[0036] S20, operating the driving device to engage with the disc brush body to drive the disc brush body to move relative to the rotating shaft;

[0037] S30, after the driving device drives the disc brush body to move to the working position, the driving device is operated to separate from the disc brush body;

[0038] S40, the rotating shaft drives the disc brush body to rotate.

[0039] In this solution, when the dust removal device is used to clean the floor, the disc brush body is driven to rotate by the rotating shaft, and the disc brush body rotates in a circle for cleaning. At this time, the driving device and the disc brush body are in a separated state, and the driving device does not interfere with the circumferential rotation of the disc brush body. There is a cleaning blind spot between two adjacent disc brush bodies or between the disc brush body and the shell. After the disc brush assembly has been used for a period of time or when there are debris in the cleaning blind spot, the driving device engages with the disc brush body and drives the disc brush body to move relative to the rotating shaft. By moving the disc brush body relative to the rotating shaft, the obstruction of the cleaning blind spot by the disc brush body is reduced. The dust removal device is used to remove dust, and the debris in the cleaning blind spot can be taken away. After the debris in the cleaning blind spot is cleaned, the driving device drives the disc brush body back to the working position and separates from the disc brush body. The above method can timely remove the debris in the cleaning blind spot, which is beneficial to the cleaning effect of the dust removal device and improves the user experience.

[0040] Preferably, the disc brush assembly further comprises a detection element, and the detection element detects whether there are debris in the target area; and the dust removal device control method further comprises, before step S10:

[0041] S11, the detection element detects whether there is debris in the target area, if so, execute step S10.

[0042] In the present scheme, the target area is a cleaning blind area, and the target area is detected by a detection element. When there is debris in the target area, the driving device can promptly engage with the disc brush body and drive the disc brush body to move relative to the rotating shaft, thereby reducing the obstruction of the cleaning blind area by the disc brush body, and dust removal is performed using a dust removal device. The above method can promptly remove debris in the cleaning blind area, which is beneficial to the cleaning effect of the dust removal device and improves the user experience.

[0043] Preferably, the dust removal device control method further includes between step S20 and step S30:

[0044] S21, the detection element detects whether there is debris in the target area, if not, execute step S30.

[0045] In this solution, the target area is a cleaning blind area. After the driving device engages with the disc brush body 2 and drives the disc brush body to move relative to the rotating shaft, the dust removal device is used to remove dust. When the detection element detects that the debris in the target area has been cleared, the driving device drives the disc brush body back to the working position and separates from the disc brush body, and the rotating shaft can continue to drive the disc brush body to rotate in a circle. The above method can ensure that the debris in the cleaning blind area is cleared, which is beneficial to the cleaning effect of the dust removal device and improves the user experience.

[0046] The positive and progressive effects of the present invention are:

[0047] When the dust removal device is used to clean the floor, the disc brush body is driven to rotate by the rotating shaft, and the disc brush body rotates in a circle for cleaning. At this time, the driving device and the disc brush body are in a separated state, and the driving device does not interfere with the circumferential rotation of the disc brush body. There is a cleaning blind spot between two adjacent disc brush bodies or between the disc brush body and the shell. After the disc brush assembly has been used for a period of time or when there is debris in the cleaning blind spot, the driving device engages with the disc brush body and drives the disc brush body to move relative to the rotating shaft. By moving the disc brush body relative to the rotating shaft, the obstruction of the cleaning blind spot by the disc brush body is reduced. Using the dust removal device for dust removal can take away the debris in the cleaning blind spot. After cleaning the debris in the cleaning blind spot, the driving device drives the disc brush body back to the working position and separates from the disc brush body. The above-mentioned settings are beneficial to the cleaning effect of the dust removal device and enhance the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] Figure 1 The figure is a schematic structural diagram of a dust removal device according to an embodiment of the present invention.

[0049] Figure 2 for Figure 1 The schematic diagram of the structure of the gear box and disc brush assembly of the dust removal device is shown.

[0050] Figure 3 The present invention is a structural schematic diagram of a disc brush assembly according to an embodiment of the present invention.

[0051] Figure 4 For Figure 3 The structural schematic diagram of the disc brush assembly is shown.

[0052] Figure 5 For Figure 3 A schematic structural diagram of a disc brush body of a disc brush assembly is shown.

[0053] Figure 6 For Figure 3 A schematic structural diagram of the screw motor and connecting shaft of the disc brush assembly is shown.

[0054] Figure 7 For Figure 3A schematic structural diagram of the first transmission part of the disc brush assembly is shown.

[0055] Figure 8 For Figure 3 A schematic structural diagram of the rotating shaft of the disc brush assembly is shown.

[0056] Fig. 9 The figure is a flow chart of a dust removal device control method according to an embodiment of the present invention.

[0057] Disc brush assembly 100

[0058] Rotation axis 1

[0059] Plane side wall 11

[0060] Disk brush body 2

[0061] Connection part 21

[0062] Connection slot 22

[0063] Drive device 3

[0064] Connecting shaft 31

[0065] The first matching portion 311

[0066] Screw motor 32

[0067] The first transmission part 33

[0068] The second matching portion 331

[0069] The second transmission part 34

[0070] Infrared transmitter 35

[0071] Target area D

[0072] Detection element 4

[0073] Limiting element 5

[0074] Gearbox 200

[0075] Dust removal device 300 DETAILED DESCRIPTION

[0076] The present invention is further described below by way of examples, but the present invention is not limited to the scope of the examples.

[0077] The present invention provides a disc brush assembly 100, such as Figure 1-Figure 3As shown, the disc brush assembly 100 includes a rotating shaft 1 and a disc brush body 2, the rotating shaft 1 is used to drive the disc brush body 2 to rotate, and the disc brush assembly 100 includes a driving device 3, which can engage with and disengage from the disc brush body 2; wherein, when the driving device 3 and the disc brush body 2 are in an engaged state, the driving device 3 is used to drive the disc brush body 2 to move relative to the rotating shaft 1, and the moving direction of the disc brush body 2 has an angle with the axial direction of the rotating shaft 1; when the driving device 3 and the disc brush body 2 are in a disengaged state, the rotating shaft 1 can drive the disc brush body 2 to rotate.

[0078] The disc brush body 2 is driven to rotate by the rotating shaft 1, and the disc brush body 2 rotates in a circle for cleaning. At this time, the driving device 3 is separated from the disc brush body 2, and the driving device 3 does not interfere with the circular rotation of the disc brush body 2. When the disc brush body 2 needs to move, the driving device 3 engages with the disc brush body 2 and drives the disc brush body 2 to move relative to the rotating shaft 1. When the disc brush body 2 needs to rotate in a circle again, the driving device 3 drives the disc brush body 2 back to the working position and separates from the disc brush body 2, so that the rotating shaft 1 can drive the disc brush body 2 to rotate. When the disc brush assembly 100 is applied to the dust removal device 300, there is a cleaning blind area between two adjacent disc brush bodies 2 or between the disc brush body 2 and the housing of the dust removal device 300. After the disc brush assembly 100 has been used for a period of time or when there are debris in the cleaning blind area, the driving device 3 engages with the disc brush body 2 and drives the disc brush body 2 to move relative to the rotating shaft 1, reducing the shielding of the disc brush body 2 on the cleaning blind area. Dust removal using the dust removal device 300 can remove debris in the cleaning blind area. After cleaning the debris in the blind area, the driving device 3 drives the disc brush body 2 back to the working position and separates from the disc brush body 2. The above arrangement is beneficial to the cleaning effect of the dust removal device 300 and improves the user experience of the dust removal device 300.

[0079] In this embodiment, the moving direction of the disc brush body 2 is perpendicular to the axial direction of the rotating shaft 1. When the dust removal device 300 cleans the floor, the axial direction of the rotating shaft 1 is perpendicular to the floor, and the moving direction of the disc brush body 2 relative to the rotating shaft 1 is parallel to the floor. In other alternative embodiments, the angle between the moving direction of the disc brush body 2 relative to the rotating shaft 1 and the axial direction of the rotating shaft 1 may also be an obtuse angle or an acute angle, and the angle is not specifically limited.

[0080] As a preferred embodiment, the disc brush assembly 100 further includes a detection element 4, which detects whether there are debris in the target area D; when the detection element 4 detects that there are debris in the target area D, the drive device 3 engages with the disc brush body 2, and the drive device 3 drives the disc brush body 2 to move relative to the rotating shaft 1. The target area D is a cleaning blind area. The target area D is detected by the detection element 4. When there are debris in the target area D, the drive device 3 can be engaged with the disc brush body 2 in time and drive the disc brush body 2 to move relative to the rotating shaft 1, thereby reducing the shielding of the cleaning blind area by the disc brush body 2, and using the dust removal device 300 to remove dust, timely remove the debris in the cleaning blind area, and reduce the risk of debris affecting the cleaning effect of the dust removal device 300. At the same time, when there are no debris in the target area D, the rotating shaft 1 drives the disc brush body 2 to rotate in a circle for cleaning, which is beneficial to the cleaning effect of the dust removal device 300 and improves the user experience.

[0081] In this embodiment, if Figure 1 and Figure 2 As shown, the dust removal device 300 includes four disc brush assemblies 100 , which are arranged at equal intervals along a straight line. The detection element 4 is arranged on the housing of the dust removal device 300 and is located in the middle of the four disc brush assemblies 100 .

[0082] In specific implementation, Figure 4-Figure 6 As shown, the driving device 3 includes a connecting shaft 31, and the disc brush body 2 includes a connecting portion 21, and the connecting shaft 31 can engage with and disengage from the connecting portion 21. The driving device 3 is engaged with and disengaged from the disc brush body 2 through the cooperation between the connecting shaft 31 and the connecting portion 21, which is beneficial to the connection reliability between the driving device 3 and the disc brush body 2. When the driving device 3 drives the disc brush body 2 to move, the risk of the driving device 3 being loosened relative to the disc brush body 2 can be reduced; and the structure is simple, which is convenient for the production of the disc brush assembly 100.

[0083] In this embodiment, if Figure 5 and Figure 6 As shown, the connecting portion 21 is a hole matched with the connecting shaft 31, and the connecting shaft 31 extends into the connecting portion 21 to achieve engagement with the connecting portion 21. In other alternative embodiments, the connecting portion 21 may also be a threaded hole, and one end of the connecting shaft 31 engaged with the connecting portion 21 has an external thread matched with the connecting portion 21, and the threaded connection is beneficial to the connection reliability of the connecting shaft 31 and the connecting portion 21.

[0084] As a preferred implementation, Figure 2-Figure 4As shown, the driving device 3 also includes a screw motor 32, and the connecting shaft 31 is a screw; the driving device 3 also includes a first transmission part 33 and a second transmission part 34, the first transmission part 33 is connected to the screw, and the second transmission part 34 is fixed relative to the rotating shaft 1, and the screw motor 32 drives the screw to rotate and move in the direction close to the connecting part 21; when the screw is connected to the connecting part 21 and the screw moves to a preset position relative to the connecting part 21, the screw drives the first transmission part 33 to move and cooperates with the second transmission part 34 to drive the disc brush body 2 to move, and the driving device 3 drives the disc brush body 2 to move; when the screw moves to the limit position relative to the connecting part 21, the screw motor 32 stops driving the screw. In this embodiment, the second transmission part 34 is fixed to the bottom of the gear box 200.

[0085] After the disc brush assembly 100 has been used for a period of time or when there are debris in the blind cleaning area, the screw motor 32 drives the screw to move in the direction close to the connection part 21 and engage with the disc brush body 2. After the screw engages with the connection part 21 and moves to a preset position relative to the connection part 21, the screw cooperates with the first transmission part 33 and drives the first transmission part 33 to move. Since the screw rotates during the movement, the disc brush body 2 is driven to move relative to the rotating shaft 1 through the cooperation of the first transmission part 33 and the second transmission part 34. Through the movement of the disc brush body 2 relative to the rotating shaft 1, the obstruction of the cleaning blind area by the disc brush body 2 is reduced, and impurities in the cleaning blind area are removed, which is beneficial to the cleaning effect of the dust removal device 300 and improves the user experience of the dust removal device 300.

[0086] In other alternative embodiments, the driving device 3 further includes a first driving part and a second driving part, the first driving part drives the connecting shaft 31 to move in a direction away from or close to the connecting part 21, and when the connecting shaft 31 is in an engaged state with the connecting part 21, the second driving part drives the disc brush body 2 to move relative to the rotating shaft 1. The first driving part and the second driving part can be motors, respectively. In a specific implementation process, the dust removal device 300 includes a control element for controlling the linkage between the first driving part and the second driving part, and the control element is electrically connected to the first driving part and the second driving part, respectively.

[0087] After the disc brush assembly 100 has been used for a period of time or when there are impurities in the blind cleaning area, the first driving unit drives the connecting shaft 31 to move toward the connecting part 21 and engage with the connecting part 21, and the second driving unit drives the disc brush body 2 to move relative to the rotating shaft 1 through the cooperation between the connecting shaft 31 and the connecting part 21. The disc brush body 2 moves relative to the rotating shaft 1 to reduce the shielding of the blind cleaning area by the disc brush body 2. Through the above arrangement, the disc brush assembly 100 can automatically remove impurities in the blind cleaning area, which is beneficial to the cleaning effect of the disc brush assembly 100 and greatly facilitates the use of the disc brush assembly 100.

[0088] As a preferred implementation, Figure 6 and Figure 7 As shown, the screw rod is movable relative to the first transmission part 33, the connecting shaft 31 includes a first matching part 311, and the first transmission part 33 includes a second matching part 331. When the screw rod moves to a preset position, the first matching part 311 moves toward the direction close to the second matching part 331 and matches with the second matching part 331. The screw rod drives the first transmission part 33 to rotate through the matching of the first matching part 311 and the second matching part 331. The disc brush assembly 100 also includes a limiting element 5, which is used to detect whether the screw rod has moved to the extreme position relative to the connecting part 21.

[0089] In the process of the screw rod engaging with the connection part 21 and moving to the preset position relative to the connection part 21, the first matching part 311 moves in the direction close to the second matching part 331 along with the movement of the screw rod. When the screw rod moves to the preset position relative to the connection part 21, the screw rod motor 32 drives the first transmission part 33 to move through the matching between the first matching part 311 and the second matching part 331, which is beneficial to the connection reliability between the screw rod and the first transmission part 33, reduces the risk of the screw rod loosening relative to the first transmission part 33, and is beneficial to the use experience of the disc brush assembly 100. When the screw rod moves to the limit position relative to the connection part 21, the limiting element 5 detects that the screw rod has moved to the limit position and can control the screw rod motor 32 to stop, reducing the risk of damage to the disc brush assembly 100 caused by the continued movement of the screw rod, which is beneficial to the use of the disc brush assembly 100.

[0090] In this embodiment, if Figure 6 As shown, the limiting element 5 is sleeved on the screw rod. When the screw rod moves to the limit position, the end of the screw rod extending into the connection part 21 is attached to the inner wall of the connection part 21. The limiting element 5 determines whether the screw rod moves to the limit position by detecting whether the end of the screw rod extending into the connection part 21 contacts the inner wall of the connection part 21. The disc brush assembly 100 also has a control element for controlling the movement of the screw motor 32. The control element is electrically connected to the limiting element 5. When the limiting element 5 detects that the screw rod moves to the limit position, the limiting element 5 sends a detection signal to the control element, and the control element controls the screw motor 32 to stop rotating.

[0091] As a preferred implementation, Figure 4 , Figure 6 and Figure 7As shown, the first transmission part 33 is a gear, the second transmission part 34 is a rack, and the gear is sleeved on the connecting shaft 31; the first matching part 311 extends along the axial direction of the gear, and the second matching part 331 extends along the axial direction of the connecting shaft 31, and the first matching part 311 is engaged with the second matching part 331. The gear and the rack are meshed with each other, which is conducive to reliable transmission between the first transmission part 33 and the second transmission part 34. The gear is sleeved on the connecting shaft 31, and the first matching part 311 extends along the axial direction of the gear. When the connecting shaft 31 moves to a preset position, the second matching part 331 is engaged with the first matching part 311 as the connecting shaft 31 moves in the axial direction of the connecting shaft 31, which is conducive to the connecting shaft 31 driving the gear transmission, and the above structure is easy to set up, which is conducive to the production of the disc brush assembly 100.

[0092] In other alternative embodiments, the first transmission part 33 may be a transmission belt, and the other end of the connection belt is fixed to the second transmission part 34. After the screw rod is engaged with the connection part 21 and moves to a preset position relative to the connection part 21, the screw rod cooperates with the first transmission part 33 and drives the first transmission part 33 to move. Since the screw rod rotates during the movement, the transmission belt is wound around the screw rod during the rotation of the screw rod, so that the portion of the transmission belt between the second transmission part 34 and the screw rod is gradually shortened. Under the pulling force of the transmission belt, the screw rod drives the disc brush body 2 to move in a direction close to the second transmission part 34.

[0093] As a preferred embodiment, the driving device 3 further includes a positioning element, which is used to detect whether the connecting shaft 31 is aligned with the connecting portion 21; when the connecting shaft 31 is aligned with the connecting portion 21, the connecting shaft 31 moves in a direction close to the connecting portion 21. After the disc brush assembly 100 has been used for a period of time or when there are debris in the cleaning blind area, the positioning element detects whether the connecting portion 21 is in the moving direction of the connecting shaft 31. When the connecting portion 21 is in the moving direction of the connecting shaft 31, the driving device 3 engages with the disc brush body 2 and drives the disc brush body 2 to move relative to the rotating shaft 1. The above arrangement is conducive to the connection between the connecting shaft 31 and the connecting portion 21, reduces the risk of damage to the end portion where the connecting shaft 31 is connected to the connecting portion 21, and is conducive to the user experience of the disc brush assembly 100.

[0094] In this embodiment, if Figure 3 and Figure 8 As shown, a mounting portion for fixing an infrared emitting device 35 is provided on the connecting shaft 31, the mounting portion extends outward along the side wall of the connecting shaft 31 and has a side wall facing the connecting shaft 31, the infrared emitting device 35 is fixed on the side wall facing the connecting shaft 31 and is aligned with the disc brush body 2, and an infrared receiving device is provided on the disc brush body 2. When the infrared receiving device receives the infrared signal from the infrared emitting device 35, it is determined that the disc brush body 2 has rotated to the specified position in the circumferential direction at this time, and at this time the connecting shaft 31 is aligned with the connecting portion 21.

[0095] As a preferred implementation, Figure 3 , Figure 5 and Figure 8 As shown, the rotating shaft 1 is slidably connected with the disc brush body 2. One end of the rotating shaft 1 connected with the disc brush body 2 has two parallel plane side walls 11. When the rotating shaft 1 rotates until the plane side wall 11 extends along the moving direction of the disc brush body 2, the disc brush body 2 can move relative to the rotating shaft 1. In this embodiment, the disc brush body 2 includes a connecting groove 22, one end of which is closed, and is used to cooperate with the rotating shaft 1 to limit when the disc brush body 2 returns to the working position. The disc brush body 2 is slidably connected with the rotating shaft 1 through the connecting groove 22. Through the above arrangement, the driving device 3 drives the disc brush body 2 to slide relative to the rotating shaft 1 after engaging with the disc brush body 2. There is no need to set up additional motors and control elements to separate the rotating shaft 1 from the disc brush body 2, which is convenient for the structural arrangement of the disc brush assembly 100 and is conducive to the production of the disc brush assembly 100.

[0096] The present invention also provides a dust removal device 300, such as Figure 1 and Figure 2 As shown, the dust removal device 300 includes a gear box 200 and the above-mentioned disc brush assembly 100. The gear box 200 is used to drive the rotating shaft 1 to rotate and drive the disc brush body 2 to rotate. The gear box 200 is provided with a motor and a transmission gear inside, and the gear box 200 drives the rotating shaft 1 to rotate. In this embodiment, the top of the rotating shaft 1 has a gear structure, which is integrally formed with the rotating shaft 1 and is used to connect the shaft and the transmission gear inside the gear box 200 to cooperate. The gear box 200 is fixedly arranged relative to the housing of the dust removal device 300, the second transmission part 34 is fixed to the bottom of the gear box 200, and the screw motor 32 is slidably connected to the gear box 200. When the dust removal device 300 is used to clean the floor, the disc brush body 2 is driven to rotate by the rotating shaft 1, and the disc brush body 2 rotates circumferentially for cleaning. At this time, the driving device 3 and the disc brush body 2 are in a separated state, and the driving device 3 does not interfere with the circumferential rotation of the disc brush body 2. There is a cleaning blind spot between two adjacent disc brush bodies 2 or between the disc brush body 2 and the housing. After the disc brush assembly 100 has been used for a period of time or when there are debris in the cleaning blind spot, the driving device 3 engages with the disc brush body 2 and drives the disc brush body 2 to move relative to the rotating shaft 1. By moving the disc brush body 2 relative to the rotating shaft 1, the obstruction of the cleaning blind spot by the disc brush body 2 is reduced. The dust removal device 300 is used to remove dust and remove the debris in the cleaning blind spot. After cleaning the debris in the cleaning blind spot, the driving device 3 drives the disc brush body 2 back to the working position and separates from the disc brush body 2. The above arrangement is conducive to the cleaning effect of the dust removal device 300 and improves the user experience.

[0097] The present invention also provides a dust removal device control method, such as Fig. 9As shown, the dust removal device control method is used for the above-mentioned dust removal device 300, and the dust removal device control method includes the following steps:

[0098] S10, stopping the rotation of the rotating shaft 1;

[0099] S20, operating the driving device 3 to engage with the disc brush body 2 to drive the disc brush body 2 to move relative to the rotating shaft 1;

[0100] S30, after the driving device 3 drives the disc brush body 2 to move to the working position, the driving device 3 is operated to separate from the disc brush body 2;

[0101] S40, the rotating shaft 1 drives the disc brush body 2 to rotate.

[0102] When the dust removal device 300 is used to clean the floor, the rotating shaft 1 drives the disc brush body 2 to rotate, and the disc brush body 2 rotates in a circle for cleaning. At this time, the driving device 3 is separated from the disc brush body 2, and the driving device 3 does not interfere with the circular rotation of the disc brush body 2. There is a cleaning blind spot between two adjacent disc brush bodies 2 or between the disc brush body 2 and the housing. After the disc brush assembly 100 has been used for a period of time or when there are debris in the cleaning blind spot, the driving device 3 engages with the disc brush body 2 and drives the disc brush body 2 to move relative to the rotating shaft 1. Through the movement of the disc brush body 2 relative to the rotating shaft 1, the shielding of the disc brush body 2 to the cleaning blind spot is reduced. The dust removal device 300 is used to remove dust, and the debris in the cleaning blind spot can be taken away. After the debris in the cleaning blind spot is cleaned, the driving device 3 drives the disc brush body 2 back to the working position and separates from the disc brush body 2. The above method can timely remove the debris in the cleaning blind spot, which is beneficial to the cleaning effect of the dust removal device 300 and improves the user experience.

[0103] As a preferred implementation, Fig. 9 As shown, the disc brush assembly 100 also includes a detection element 4, which detects whether there are debris in the target area D; the dust removal device control method also includes before step S10: S11, the detection element 4 detects whether there are debris in the target area D, and if so, executes step S10. The target area D is a cleaning blind area, and the target area D is detected by the detection element 4. When there are debris in the target area D, the drive device 3 can be timely engaged with the disc brush body 2 and drive the disc brush body 2 to move relative to the rotating shaft 1, reducing the shielding of the disc brush body 2 to the cleaning blind area, and using the dust removal device 300 to remove dust. The above method can timely remove the debris in the cleaning blind area, which is beneficial to the cleaning effect of the dust removal device 300 and improves the user experience.

[0104] In other alternative embodiments, the dust removal device 300 can start step S10 at every interval by setting an interval time. This method can effectively reduce the debris in the target area D and reduce the risk of excessive debris in the target area D affecting the cleaning effect of the dust removal device 300.

[0105] As a preferred implementation, Fig. 9 As shown, the dust removal device control method further includes between step S20 and step S30:

[0106] S21, the detection element 4 detects whether there is debris in the target area D, if not, execute step S30.

[0107] The target area D is a cleaning blind area. After the driving device 3 engages with the disc brush body 2 and drives the disc brush body 2 to move relative to the rotating shaft 1, the dust removal device 300 is used to remove dust. When the detection element 4 detects that the debris in the target area D is cleared, the driving device 3 drives the disc brush body 2 back to the working position and separates from the disc brush body 2, and the rotating shaft 1 can continue to drive the disc brush body 2 to rotate in a circle. The above method can ensure that the debris in the cleaning blind area is cleared, which is beneficial to the cleaning effect of the dust removal device 300 and improves the user experience.

[0108] In other alternative embodiments, the dust removal device 300 can set a cleaning time, and after step 20 is completed, the dust removal device 300 performs dust removal on the cleaning blind area for a cleaning time. This method can effectively reduce the debris in the target area D, and reduce the risk of excessive debris in the target area D affecting the cleaning effect of the dust removal device 300.

[0109] Although the specific embodiments of the present invention are described above, it should be understood by those skilled in the art that this is only for illustration and the protection scope of the present invention is defined by the appended claims. Those skilled in the art may make various changes or modifications to these embodiments without departing from the principles and essence of the present invention, but these changes and modifications all fall within the protection scope of the present invention.

Claims

1. A disc brush assembly, comprising a rotating shaft and a disc brush body, wherein the rotating shaft is used to drive the disc brush body to rotate, characterized in that: The disc brush assembly includes a drive device capable of engaging and disengaging with the disc brush body; Wherein, when the driving device is in an engaged state with the disc brush body, the driving device is used to drive the disc brush body to move relative to the rotating shaft, and the moving direction of the disc brush body forms an angle with the axial direction of the rotating shaft; When the driving device and the disc brush body are in a separated state, the rotating shaft can drive the disc brush body to rotate.

2. The disc brush assembly according to claim 1, characterized in that The disc brush assembly also includes a detection element, which detects whether there is debris in the target area; When the detection element detects the presence of foreign matter in the target area, the driving device engages with the disc brush body, and the driving device drives the disc brush body to move relative to the rotation axis.

3. The disc brush assembly according to claim 1, characterized in that The driving device includes a connecting shaft, and the disc brush body includes a connecting portion, and the connecting shaft and the connecting portion can be engaged with and separated from each other.

4. The disc brush assembly according to claim 3, characterized in that The driving device further comprises a first driving part and a second driving part, wherein the first driving part drives the connecting shaft to move in a direction away from or close to the connecting part. When the connecting shaft is in an engaged state with the connecting portion, the second driving portion drives the disc brush body to move relative to the rotating shaft.

5. The disc brush assembly according to claim 3, characterized in that The driving device also includes a screw motor, and the connecting shaft is a screw; The driving device further comprises a first transmission part and a second transmission part, wherein the first transmission part is connected to the screw rod, and the second transmission part is fixedly arranged relative to the rotating shaft, and the screw rod motor drives the screw rod to rotate and move in a direction close to the connecting part; When the screw rod is connected to the connecting part and moves to a preset position relative to the connecting part, the screw rod drives the first transmission part to move and cooperates with the second transmission part to drive the disc brush body to move, and the driving device drives the disc brush body to move; When the lead screw moves to a limit position relative to the connecting portion, the lead screw motor stops driving the lead screw.

6. The disc brush assembly according to claim 5, characterized in that The screw rod is movable relative to the first transmission part, the connecting shaft includes a first matching part, and the first transmission part includes a second matching part. When the screw rod moves to the preset position, the first matching part moves toward the second matching part and matches with the second matching part, and the screw rod drives the first transmission part to rotate through the matching of the first matching part and the second matching part. The disc brush assembly further includes a limiting element, and the limiting element is used to detect whether the screw rod moves to the limit position relative to the connecting portion.

7. The disc brush assembly according to claim 6, characterized in that The first transmission part is a gear, the second transmission part is a rack, the gear is sleeved on the connecting shaft; the first matching part extends along the axial direction of the gear, the second matching part extends along the axial direction of the connecting shaft, and the first matching part is engaged and connected with the second matching part.

8. The disc brush assembly according to claim 3, characterized in that The driving device further comprises a positioning element, and the positioning element is used to detect whether the connecting shaft is aligned with the connecting portion; When the connecting shaft is aligned with the connecting portion, the connecting shaft moves in a direction approaching the connecting portion.

9. The disc brush assembly according to claim 1, characterized in that The rotating shaft is slidably connected to the disc brush body. One end of the rotating shaft connected to the disc brush body has two parallel planar side walls. When the rotating shaft rotates until the planar side walls extend along the moving direction of the disc brush body, the disc brush body is movable relative to the rotating shaft.

10. A dust removal device, characterized in that: The dust removal device comprises a gear box and a disc brush assembly as described in any one of claims 1 to 9, wherein the gear box is used to drive the rotating shaft to rotate and drive the disc brush body to rotate.

11. A dust removal device control method, characterized in that: The dust removal device control method is used for the dust removal device according to claim 10, and the dust removal device control method comprises the following steps: S10, stopping the rotation of the rotating shaft; S20, operating the driving device to engage with the disc brush body to drive the disc brush body to move relative to the rotating shaft; S30, after the driving device drives the disc brush body to move to the working position, the driving device is operated to separate from the disc brush body; S40, the rotating shaft drives the disc brush body to rotate.

12. The dust removal device control method according to claim 11, characterized in that: The disc brush assembly also includes a detection element, which detects whether there is debris in the target area; The dust removal device control method further includes, before step S10: S11, the detection element detects whether there is debris in the target area, if so, execute step S10; And / or, the dust removal device control method further includes between step S20 and step S30: S21, the detection element detects whether there is debris in the target area, if not, execute step S30.

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