The present application is based on and claims priority to Chinese patent application number 201822175755.1, filed on Dec. 24, 2018, the entire disclosure of which is hereby incorporated by reference.
The present disclosure relates to the field of household appliances, and particularly relates to a cleaning device and a roller brush component thereof.
Taking a sweeping robot as an example, it mainly adopts a sweeping mode in which a fan is matched with roller brushes. The roller brushes are divided into a second roller brush and a soft-bristle roller brush, and bristles on the surface of the second roller brush are harder, so that the second roller brush is relatively suitable for clearing carpets and the like; and bristles on the surface of the first roller brush are softer, so that the first roller brush is relatively suitable for clearing floors, ceramic tiles and the like. In related technologies, most of the sweeping robots have a single roller brush, but the single roller brush may only meet one sweeping occasion. When the sweeping occasion needs to be switched, it is necessary to remove the roller brush on the sweeping robot and mount another suitable roller brush, so that the sweeping mode is inconvenient to switch.
Based on the above, the embodiments of the present application are expected to provide a cleaning device of which the sweeping modes are conveniently switched and a roller brush component thereof.
The embodiments of the present application provide a roller brush component of a cleaning device. The roller brush component includes a mounting base, a roller brush frame, an adjusting mechanism, a first roller brush and a second roller brush. A notch is formed on one side of the mounting base. The roller brush frame is rotatablely connected with the mounting base. The adjusting mechanism is in driving connection with the roller brush frame to drive the roller brush frame to rotate. The first roller brush and the second roller brush are connected with the roller brush frame, and a plurality of the roller brushes are positioned in the notch. The roller brush frame, the first roller brush and the second roller brush are configured such that the first roller brush and the second roller brush have different ground clearances during rotation of the roller brush frame.
Further, the first roller brush and the second roller brush are arranged in parallel, and a center line of rotation of the roller brush frame is parallel to an axis of the first roller brush.
Further, the first roller brush is formed as a hard-bristle roller brush, and the second roller brush is formed as a soft-bristle roller brush.
Further, the adjusting mechanism includes an elastic element and a cam which are positioned at one side of the center line of rotation of the roller brush frame, the elastic element is connected between the roller brush frame and the mounting base, the elastic element applies a torque along a first direction to the roller brush frame, the cam is in sliding contact with the roller brush frame, the cam applies a torque along a second direction to the roller brush frame, and the first direction is opposite to the second direction.
Further, the roller brush component includes a first motor and a first connecting rod, the first connecting rod is in driving connection with the first motor, and the cam is fixedly connected with the first connecting rod.
Further, the elastic element is a spring or a rubber band.
Further, the roller brush frame includes a support beam, two end plates and connecting plates connected between the two end plates, the two end plates are positioned at two axial ends of the roller brush, the support beam is disposed at one side of the end plate away from the notch, a through hole extending along an axial direction of the roller brush is formed in the support beam, the roller brush component includes a connecting shaft, the connecting shaft is penetrated in the through hole, and two axial ends of the connecting shaft are supported on the mounting base.
Further, the adjusting mechanism includes a second motor and a second connecting rod, the second connecting rod is in driving connection with the second motor, and the roller brush frame is fixedly connected with the second connecting rod.
The second aspect of the embodiments of the present application provides a cleaning device. The cleaning device includes any one of the above roller brush components of the cleaning device.
Further, the cleaning device includes a control device and an identification device configured to identify a cleaning environment, the control device is electrically connected with the identification device and the adjusting mechanism, and the control device controls the adjusting mechanism to drive the roller brush frame to rotate according to an identification result of the identification device.
Further, the cleaning device is a sweeping robot.
Taking an example of cleaning floors and carpets, when the floors need to be cleaned, the adjusting mechanism drives the roller brush frame to rotate until the second roller brush is in contact with the ground to use the second roller brush to clean the floors, and this state is a floor sweeping mode; and when the carpets need to be cleaned, the adjusting mechanism drives the roller brush frame to rotate until the first roller brush is in contact with the ground to use the first roller brush to clean the carpets, and this state is a carpet sweeping mode. Therefore, the sweeping modes are conveniently switched without manual replacement operations such as disassembly and installation.
mounting base 10; notch 10a; substrate 101; first mounting part 102; second mounting part 103; third mounting part 104; roller brush frame 20; end plate 201; connecting plate 202; support beam 203; hooking part 204; connecting shaft 205; first roller brush 30′; second roller brush 30″; adjusting mechanism 40; cam 41; first motor 42; first connecting rod 43; elastic element 44.
The embodiments in the present application may be combined with each other. The detailed description in the specific embodiments should be understood as an explanation of the purpose of the present disclosure, and should not be construed as limiting the present disclosure.
In the description of the present disclosure, the orientation or position relationships indicated by the terms “upper”, “lower”, “left”, “right”, “front” and “back” should be understood based on the orientation or position relationships as shown in
It should be noted that the top views of the cleaning device in different states are the same.
The first aspect of the embodiments of the present application provides a roller brush component of a cleaning device. Referring to
The “ground clearance” refers to the minimum distance between the outer surface of a roller brush and a reference plane when the cleaning device is placed on the reference plane.
It should be noted that the expression “the first roller brush 30′ and the second roller brush 30″” may have different ground clearances during rotation of the roller brush frame 20″ means that the condition that the first roller brush 30′ and the second roller brush 30″ may have different ground clearances during rotation of the roller brush frame 20 may occur, but it does not In one embodiment mean that the first roller brush 30′ and the second roller brush 30″ always have different ground clearances. In other words, it does not exclude the condition that the first roller brush 30′ and the second roller brush 30″ have the same ground clearance during rotation of the roller brush frame 20.
The roller brush component according to the embodiments of the present application is not limited to be provided with two roller brushes and may also be provided with more roller brushes.
Under the condition that the roller brush component according to the embodiments of the present application needs to clean different environmental media, the adjusting mechanism 40 drives the roller brush frame 20 to rotate by an amplitude, and the roller brush frame 20 drives the first roller brush 30′ and the second roller brush 30″ to rotate together until the roller brush matched with the current environmental medium is in contact with the ground.
The materials of the first roller brush 30′ and the second roller brush 30″ may be configured according to actual conditions. For example, the first roller brush 30′ may be formed as a hard-bristle roller brush configured to scrape dirt in carpets by virtue of a larger action force, and the materials of the bristles of the hard-bristle roller brush may be one or more of PE (polyethylene), nylon, PP (Polypropylene), sisal and PVC (Polyvinyl chloride). The second roller brush 30″ is formed as a soft-bristle roller brush configured to wipe dust and hair scattering on floors without damaging the floors, and the materials of the bristles of the soft-bristle roller brush may be one or more of hair (human hair or animal hair), viscose velvet, nylon velvet, imported velvet, acrylic velvet and cotton velvet.
Taking an example of cleaning floors and carpets, when the floors need to be cleaned, referring to
It can be understood that the adjusting mechanism 40 may be automatically controlled or manually controlled.
The first roller brush 30′ and the second roller brush 30″ are arranged in parallel, and the center line of rotation of the roller brush frame 20 is parallel to the axis of the first roller brush 30′ or the second roller brush 30″. It can be understood that the parallel arrangement of the first roller brush 30′ and the second roller brush 30″ means that the axis of the first roller brush 30′ is parallel to the axis of the second roller brush 30″. Therefore, when the roller brush frame 20 rotates as needed, the first roller brush 30′ and the second roller brush 30″ are always able to remain substantially parallel to the reference plane.
The adjusting mechanism 40 is capable of driving the roller brush frame 20 to rotate and holding the roller brush frame 20 at a required position.
In the present embodiment, referring to
The elastic element 44 may be a spring or a rubber band.
When the elastic element 44 is an extensible elastic element, such as an extension spring or a rubber band, the extensible elastic element bears tensile stress, and the elastic element 44 and the cam 41 are disposed at the same side of the roller brush frame 20 in a position in contact with the cam 41. For example, the elastic element 44 and the cam 41 are disposed at the upper side or lower side of the orientation as shown in
Referring to
Taking the state of the roller brush component as shown in
In order to facilitate the rotation control of the cam 41, in the present embodiment, referring to
The position of the roller brush frame 20 in rotational connection with the mounting base 10 is not limited. For example, the roller brush frame 20 may be rotatablely connected with the mounting base 10 coaxially along two axial ends of the first roller brush 30′ and/or the second roller brush 30″, or one position on the roller brush frame 20 may be rotatablely connected with the mounting base 10.
The structural shape of the mounting base 10 is not limited as long as a mounting space is provided for the roller brush frame 20 and the adjusting mechanism 40. In the present embodiment, referring to
The structure of the roller brush frame 20 is not limited as long as a mounting space is provided for the first roller brush 30′ and the second roller brush 30″ without interfering with the cleaning work of the first roller brush 30′ and the second roller brush 30″. Referring to
A support beam 203 is disposed at the top of the end plates 201 away from the notch 10a, and a through hole extending along an axial direction of the first roller brush 30′ and/or the second roller brush 30″ is formed in the support beam 203. The roller brush component includes a connecting shaft 205, the connecting shaft 205 is penetrated in the through hole, and two axial ends of the connecting shaft 205 are supported on the mounting base 10. In the present embodiment, the two axial ends of the connecting shaft 205 are supported on the two first mounting parts 102. The structure of the support beam 203 increases the contact area between the roller brush frame 20 and the connecting shaft 205, so that the rotational stability of the roller brush frame 20 may be increased, and the shaking of the roller brush frame 20 during rotation may be avoided to the greatest extent.
Further, in order to facilitate connection with the elastic element 44, a hooking part 204 is formed at one side of the connecting plate 202 away from the first roller brush 30′ and the second roller brush 30″, one end of the elastic element 44 is hooked with the hooking part 204, and the other end of the elastic element 44 is hooked with the third mounting part 104.
In an embodiment not shown, different from the above embodiments, the adjusting mechanism 40 includes a second motor and a second connecting rod, the second connecting rod is in driving connection with the second motor, the second connecting rod is rotatablely supported on the mounting base 10, the roller brush frame 20 is fixedly connected with the second connecting rod, the second connecting rod is driven by the second motor to drive the roller brush frame 20 to synchronously rotate, and the roller brush frame 20 is rotatablely connected with the mounting base 10 by the second connecting rod.
The second aspect of the embodiments of the present application provides a cleaning device. The cleaning device includes any one of the above roller brush components.
The cleaning device also includes a control device and an identification device configured to identify the cleaning environment. The cleaning environment includes carpets and flat interfaces, such as floors and ceramic tiles. The identification device can adopt an image processing technology for detection. For example, the carpets and the flat interfaces may be identified based on a convolutional neural network, and the description thereof is omitted herein.
The control device is electrically connected with the identification device and the adjusting mechanism, and the control device controls the adjusting mechanism 40 to drive the roller brush frame 20 to rotate according to the identification result of the identification device. In one embodiment, when the identification device detects that the cleaning environment is a flat interface, the control device controls the adjusting mechanism 40 to drive the roller brush frame 20 to rotate to be in the state as shown in
The type of the cleaning device is not limited. For example, the cleaning device includes, but is not limited to, a sweeping robot.
Number | Date | Country | Kind |
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201822175755.1 | Dec 2018 | CN | national |
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Number | Date | Country | |
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20200196816 A1 | Jun 2020 | US |