Roller device and cleaning equipment
By introducing a roller device into the cleaning equipment, along with an auxiliary motor and detection system, the problem of traditional cleaning equipment requiring significant force to move in complex environments is solved, enabling effortless movement of the equipment in such environments.
Patent Information
- Application Number
- CN202423318852.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2034-12-31
AI Technical Summary
Traditional cleaning equipment requires users to exert considerable force to push it when encountering significant resistance or needing to change direction, making it particularly difficult to operate in complex environments.
The device employs a roller mechanism, including an assist motor, a detection device, and a controller. By detecting the rotation direction of the rollers and controlling the assist motor to drive the rollers to rotate in the same direction, it provides mobility assistance.
Users only need to apply a small amount of force to trigger the start-up of the power-assisted motor, simplifying equipment movement and making it easier to operate, especially in complex environments.
Smart Images
Figure CN223930085U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of home appliances, and more particularly to a roller device and cleaning equipment. Background Technology
[0002] As people's demands for home cleaning increase, the ease of use and cleaning efficiency of cleaning equipment, a common tool in modern homes and public places, have become increasingly important. Traditional cleaning equipment requires users to exert considerable force to push it, especially when encountering significant resistance or needing to change direction. Furthermore, traditional cleaning equipment is even more difficult to operate in complex environments, such as on carpets or thresholds. Utility Model Content
[0003] This application provides a roller device and a cleaning device that assist in moving equipment.
[0004] In a first aspect, this application provides a roller device for assisting in the movement of equipment, comprising:
[0005] Roller;
[0006] An assist motor is connected to the roller and is used to drive the roller to rotate;
[0007] A detection device for detecting the rotation direction of the roller;
[0008] The controller, electrically connected to the detection device and the assist motor, is used to send a control signal to control the assist motor to drive the roller to rotate in the rotation direction detected by the detection device.
[0009] The detection device can detect the rotation direction of the roller and send a detection signal to the controller. Upon receiving the detection signal, the controller can control the assist motor to rotate in the same direction as the roller's current rotation, thus moving the device via the roller. When the user needs to move the device, they only need to apply a small force to make the movement detected by the detection device, triggering the assist motor to start. The assist motor drives the roller to move in the detected direction, providing assistance to the device's movement. Users do not need to apply significant force to push the device, making it easier to use.
[0010] Optionally, the detection device includes a magnetic suction element and an encoding disk, one of the magnetic suction element and the encoding disk being disposed on the roller, and the other of the magnetic suction element and the encoding disk being connected to the device that is moved with the assistance of the roller; the encoding disk is electrically connected to the controller, and the encoding disk senses the relative positional relationship between the magnetic suction element and the encoding disk and sends a detection signal to the controller.
[0011] Optionally, the roller device further includes a transmission component, the assist motor includes a motor shaft, the transmission component is connected to the motor shaft and the roller respectively, and the assist motor drives the roller to rotate through the transmission component.
[0012] Optionally, one of the magnetic suction element and the encoder disk is disposed on the outer wall surface of the roller; the other of the magnetic suction element and the encoder disk is disposed on the housing of the device that is moved with the assistance of the roller.
[0013] Optionally, the assist motor is coaxially arranged with the roller, the assist motor includes a motor shaft, the motor shaft is connected to the roller, and the assist motor drives the roller to rotate through the motor shaft.
[0014] Optionally, the magnetic suction element is disposed at one end of the motor shaft connected to the roller, and the encoder disk is disposed on the inner wall of the roller.
[0015] Optionally, the detection device further includes a Hall sensor, which is electrically connected to the controller. In the rotation direction of the roller, the detection device is provided with the Hall sensor at least at different positions on the encoder disk.
[0016] Optionally, the detection device includes an infrared light sensor electrically connected to the controller. In the rotation direction of the roller, the infrared light sensor emits infrared light at least toward different positions of the roller, and a reflector is provided on the side of the roller facing the infrared light sensor.
[0017] Optionally, the detection device includes a photoelectric encoder disk, comprising a light source, a grating disk, and a photosensitive element. The grating disk is coaxially arranged with the roller, the light source emits light toward the grating disk, the photosensitive element is disposed on the side of the grating disk opposite to the light source, and the photosensitive element is electrically connected to the controller.
[0018] This application provides a cleaning device, including the roller device described in any embodiment of the first aspect.
[0019] When users clean floors with cleaning equipment, the equipment needs to be moved to cover various areas. During use, a detection device detects the rotation direction of the rollers and sends a detection signal to the controller. Upon receiving the signal, the controller controls the assist motor to rotate in the same direction as the rollers, thus moving the equipment. When the user needs to move the equipment, they only need to apply a small force to trigger the assist motor, which drives the rollers in the detected direction, providing assistance. This reduces the need for significant force, making the equipment easier to use. Even in complex environments such as carpets and thresholds, the equipment can be moved and cleaned with relatively little effort. Attached Figure Description
[0020] The accompanying drawings, which are incorporated in and form a part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure.
[0021] Figure 1 The diagram shown is a schematic diagram of one embodiment of the roller device of this application.
[0022] Figure 2 The diagram shown is a schematic diagram of another embodiment of the roller device of this application.
[0023] Figure 3 The diagram shown is a schematic diagram of yet another embodiment of the roller device of this application.
[0024] Figure 4 The diagram shown is a schematic diagram of yet another embodiment of the roller device of this application.
[0025] Figure 5 The diagram shown is a schematic diagram of yet another embodiment of the roller device of this application.
[0026] Explanation of reference numerals in the attached figures:
[0027] 100. Roller assembly; 110. Roller; 120. Power assist motor; 121. Motor shaft; 130. Detection device; 131. Magnetic suction element; 132. Encoder disk; 133. First Hall sensor; 134. Second Hall sensor; 135. First infrared light sensor; 136. Second infrared light sensor; 137. Light source; 138. Grating disk; 139. Photosensitive element; 140. Controller; 150. Transmission component; 160. Reflector; 161. Hole;
[0028] 10. Cleaning equipment; 11. Housing. Detailed Implementation
[0029] The technical solutions in the embodiments (or "implementations") of this application will be clearly and completely described herein with reference to the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements.
[0030] If the embodiments of this application contain terms relating to directional indications or positional relationships (such as up, down, left, right, front, back, inside, outside, top, bottom, center, vertical, horizontal, longitudinal, transverse, length, width, counterclockwise, clockwise, axial, radial, circumferential, etc.), such terms are only used to explain the relative positional relationships and movements between components in a specific posture (as shown in the attached figures); if the specific posture changes, the directional indications or positional relationships will also change accordingly. Furthermore, the terms "first" and "second" used in the embodiments of this application are only for descriptive convenience and should not be construed as indicating or implying relative importance.
[0031] This application provides a roller device 100 and a cleaning device 10. The roller device 100 and the cleaning device 10 of this application will be described in detail below with reference to the accompanying drawings. Unless otherwise specified, the features of the following embodiments and implementations can be combined with each other.
[0032] See Figure 1 As shown, this application provides a roller device 100 for assisting in the movement of equipment. When the roller device 100 is installed on the cleaning equipment 10, it can be positioned on the side of the equipment facing the surface to be cleaned during movement. The surface to be cleaned can be a floor, carpet, bed sheet, or other object surface that needs to be cleaned. The roller device 100 includes a roller 110, a power-assisted motor 120, a detection device 130, and a controller 140. The roller 110 reduces friction during equipment movement, reducing the force required to move the equipment and facilitating its movement. The power-assisted motor 120 is connected to the roller 110 and drives the roller 110 to rotate. The detection device 130 detects the rotation direction of the roller 110. When the detection device 130 detects the rotation direction of the roller 110, it sends an electrical signal to the controller 140. The controller 140 is electrically connected to the detection device 130 and the assist motor 120. It is used to send a control signal to the assist motor 120 to drive the roller 110 to rotate in the direction of rotation detected by the detection device 130, thereby controlling the assist motor 120 to rotate in the same direction as the current rotation direction of the roller 110, so that the equipment can be moved by the roller 110.
[0033] When a user needs to move a device, they only need to apply a small amount of force to make the movement of the device detected by the detection device 130, which will trigger the start of the assist motor 120. The assist motor 120 drives the roller 110 to move in the detected direction, providing assistance to the movement of the device. The user does not need to apply a large amount of force to push the device, thus making the device easier to use.
[0034] In an optional embodiment, see Figure 2 and Figure 3 As shown, the detection device 130 includes a magnetic chuck 131 and an encoder disk 132. One of the magnetic chuck 131 and the encoder disk 132 is disposed on a roller 110, and the other of the magnetic chuck 131 and the encoder disk 132 is connected to the device that is moved with the assistance of the roller 110. When the device is moved, the roller 110 rotates, and one of the magnetic chuck 131 and the encoder disk 132 rotates with the roller 110, while the other of the magnetic chuck 131 and the encoder disk 132 is fixed to the device, and the relative position between the magnetic chuck 131 and the encoder disk 132 changes. The encoder disk 132 is provided with a marking area. During the process of the change in the relative position relationship between the magnetic chuck 131 and the encoder disk 132, when the magnetic chuck 131 approaches the encoder disk 132 and is less than the maximum sensing distance of the encoder disk 132, the magnetic chuck 131 triggers a detection signal, and during the rotation of the roller 110, the magnetic chuck 131 passes through different marking areas of the encoder disk 132 relative to the encoder disk 132. The encoder disk 132 is electrically connected to the controller 140. The encoder disk 132 senses the relative position relationship between the magnetic attractor 131 and the encoder disk 132 and sends a detection signal to the controller 140.
[0035] In some embodiments, the encoder disk 132 can be a thin metal plate or plastic sheet with multiple small holes, each hole representing a pulse signal used to calculate the angle rotated by the roller 110. The number of holes determines the resolution, i.e., the minimum amount of rotation of the roller 110 that can be detected. The magnetic attractor 131 can be a permanent magnet, such as a neodymium iron boron magnet, to ensure sufficient strength and durability. With the above configuration, when the user moves the device, the rotation of the roller 110 causes the encoder disk 132 to send a detection signal to the controller 140 in a timely manner. The controller 140 can respond to the detection signal and send a control signal to control the assist motor 120 to drive the roller 110 to rotate in the same direction as the current rotation direction of the roller 110. This allows the roller 110 to move the device, providing assistance for its movement. The user does not need to exert much force to push the device, thus facilitating its use.
[0036] In an optional embodiment, see Figure 2As shown, an assist motor 120 is disposed within the device, and the assist motor 120 includes a motor shaft 121. When the assist motor 120 is running, the direction of the driving force output by the motor shaft 121 is not the same as the direction of rotation of the rollers 110. The roller device 100 also includes a transmission member 150, which is connected to both the motor shaft 121 and the rollers 110. The assist motor 120 drives the rollers 110 to rotate via the transmission member 150. This arrangement facilitates the placement of the assist motor 120 within the device. In some embodiments, the transmission member 150 can connect the motor shaft 121 and multiple rollers 110, so that when the assist motor 120 is running, the transmission member 150 can drive multiple rollers 110 simultaneously to provide assistance for the movement of the device.
[0037] In an optional embodiment, see Figure 2 As shown, one of the magnetic chuck 131 and the encoder disk 132 is disposed on the outer wall surface of the roller 110; the other of the magnetic chuck 131 and the encoder disk 132 is disposed on the housing 11 of the device assisted in moving by the roller 110. In some embodiments, one of the magnetic chuck 131 and the encoder disk 132 may be integrally formed with the roller 110; in other embodiments, one of the magnetic chuck 131 and the encoder disk 132 may also be mounted to the roller 110 by other connection methods such as bonding or snap-fitting. The other of the magnetic chuck 131 and the encoder disk 132 is disposed on the housing 11 of the device assisted in moving by the roller 110. With the above settings, when the user moves the device, the rotation of the roller 110 causes the encoder 132 to send a detection signal to the controller 140 in a timely manner. The controller 140 can respond to the detection signal and send a control signal to control the assist motor 120 to drive the roller 110 to rotate in the same direction. The assist motor 120 is controlled to rotate in the same direction as the current rotation direction of the roller 110, so that the roller 110 can drive the device to move, providing assistance for the movement of the device. The user does not need to apply a lot of force to push the device, thus facilitating the use of the device.
[0038] In an optional embodiment, see Figure 3 As shown, the assist motor 120 is coaxially arranged with the roller 110. The assist motor 120 includes a motor shaft 121, and the direction of the driving force output by the motor shaft 121 is the same as the direction of rotation of the roller 110. The motor shaft 121 is connected to the roller 110, and the assist motor 120 drives the roller 110 to rotate through the motor shaft 121. With the above arrangement, the roller 110 is directly driven to rotate by the assist motor 120, which simplifies the internal structure of the equipment and facilitates the maintenance and disassembly of individual rollers 110.
[0039] In an optional embodiment, see Figure 3As shown, the magnetic chuck 131 is disposed on one end of the motor shaft 121 connected to the roller 110, and the encoder disk 132 is disposed on the inner wall of the roller 110. When the assist motor 120 is coaxially arranged with the roller 110, and the motor shaft 121 of the assist motor 120 is connected to the roller 110 and drives the roller 110 to rotate, the magnetic chuck 131 is disposed on the motor shaft 121. When the motor drives the roller 110 to rotate, the encoder disk 132 rotates with the roller 110, and its relative position with the magnetic chuck 131 changes. The encoder disk 132 senses the relative position relationship between the magnetic chuck 131 and the encoder disk 132, and sends a detection signal to the controller 140. With the above settings, when the user moves the device, the encoder 132 can sense the rotation of the roller 110 at any time, so that the encoder 132 sends a detection signal to the controller 140 in a timely manner. The controller 140 can respond to the detection signal and send a control signal to control the assist motor 120 to drive the roller 110 to rotate in the same direction. Controlling the assist motor 120 to rotate in the same direction as the current rotation direction of the roller 110 helps to reduce the response time of the controller 140 and the assist motor 120.
[0040] In an optional embodiment, see Figure 2 As shown, the detection device 130 also includes a Hall sensor, which is electrically connected to the controller 140. In the rotation direction of the roller 110, the detection device 130 has Hall sensors respectively provided on both sides of the encoder disk 132. When the Hall sensor detects the passage of the magnetic attractor 131, it sends a sensing signal to the controller 140.
[0041] In some embodiments, see Figure 2 As shown, in the rotation direction of the roller 110, the housing 11 of the device is respectively provided with a first Hall sensor 133 and a second Hall sensor 134, and the magnetic suction member 131 is provided on the outer wall surface of the roller 110.
[0042] When the user moves the device forward, the scroll wheel 110 rotates counterclockwise. When the initial position of the magnetic clasp 131 is at the sensing position of the first Hall sensor 133, the first Hall sensor 133 senses the magnetic clasp 131 and sends a first sensing signal to the controller 140; after a first duration, the magnetic clasp 131 rotates to the sensing position of the second Hall sensor 134, the second Hall sensor 134 senses the magnetic clasp 131 and sends a second sensing signal to the controller 140; after a second duration, the magnetic clasp 131 rotates to the sensing position of the first Hall sensor 133, the first Hall sensor 133 senses the magnetic clasp 131 and sends a first sensing signal to the controller 140. The first duration is longer than the second duration. When the initial position of the magnetic chuck 131 is not the sensing position of the first Hall sensor 133, the second Hall sensor 134 will sense the magnetic chuck 131 passing by before the first Hall sensor 133. The second Hall sensor 134 senses the magnetic chuck 131 and sends a second sensing signal to the controller 140. After a second period of time, the magnetic chuck 131 rotates to the sensing position of the first Hall sensor 133. The first Hall sensor 133 senses the magnetic chuck 131 and sends a first sensing signal to the controller 140. After a first period of time, the magnetic chuck 131 rotates to the sensing position of the second Hall sensor 134. The second Hall sensor 134 senses the magnetic chuck 131 and sends a second sensing signal to the controller 140.
[0043] When the user moves the device backward, the scroll wheel 110 rotates clockwise. When the initial position of the magnetic clasp 131 is at the sensing position of the second Hall sensor 134, the second Hall sensor 134 senses the magnetic clasp 131 and sends a second sensing signal to the controller 140; after a first period of time, the magnetic clasp 131 rotates to the sensing position of the first Hall sensor 133, the first Hall sensor 133 senses the magnetic clasp 131 and sends a first sensing signal to the controller 140; after a second period of time, the magnetic clasp 131 rotates to the sensing position of the second Hall sensor 134, the second Hall sensor 134 senses the magnetic clasp 131 and sends a second sensing signal to the controller 140. When the initial position of the magnetic chuck 131 is not at the sensing position of the second Hall sensor 134, the first Hall sensor 133 will detect the magnetic chuck 131 passing by before the second Hall sensor 134. The first Hall sensor 133 detects the magnetic chuck 131 and sends a first sensing signal to the controller 140. After a second time interval, the magnetic chuck 131 rotates to the sensing position of the second Hall sensor 134. The second Hall sensor 134 detects the magnetic chuck 131 and sends a second sensing signal to the controller 140. After a first time interval, the magnetic chuck 131 rotates to the sensing position of the first Hall sensor 133. The first Hall sensor 133 detects the magnetic chuck 131 and sends a first sensing signal to the controller 140. The controller 140 determines the rotation direction of the roller 110 based on the time difference between the first and second sensing signals it receives, and controls the assist motor 120 to drive the roller 110 to move in the detected direction, providing assistance for the movement of the device. The user does not need to apply a large force to push the device, thus facilitating the use of the device.
[0044] The controller 140 determines the rotation direction of the roller 110 based on the time difference between the second sensing signal and the first sensing signal it receives, and controls the assist motor 120 to drive the roller 110 to move in the detected direction, providing assistance for the movement of the device. The user does not need to apply a lot of force to push the device, thus making the device easier to use.
[0045] In an optional embodiment, see Figure 4As shown, the detection device 130 includes an infrared light sensor. The infrared light sensor is electrically connected to the controller 140. In some embodiments, the infrared light sensor may be disposed on the housing 11 of the device. In the rotation direction of the roller 110, the infrared light sensor emits infrared light at least towards different positions of the roller 110, and a reflector 160 is disposed on the side of the roller 110 facing the infrared light sensor. The reflector 160 may be a metal plate with a hole 161. As the reflector 160 rotates with the roller 110, when the hole 161 is aligned with the infrared light, the infrared light sensor cannot detect the reflected signal from the reflector 160 and sends a sensing signal to the controller 140; when the hole 161 is not aligned with the infrared light, the metal plate partially reflects the infrared light, the infrared light sensor detects the reflected signal from the reflector 160, and stops sending a sensing signal to the controller 140.
[0046] In some embodiments, see Figure 4 As shown, in the rotation direction of the roller 110, the housing 11 of the device is respectively provided with a first infrared light sensor 135 and a second infrared light sensor 136, and a reflector 160 is provided on the outer wall surface of the roller 110.
[0047] When the user moves the device forward, the scroll wheel 110 rotates counterclockwise. When the initial position of the aperture 161 is at the corresponding position of the first infrared light sensor 135, the first infrared light sensor 135 cannot detect the reflected signal from the reflector 160 and sends a first sensing signal to the controller 140. After a first duration, the aperture 161 rotates to the corresponding position of the second infrared light sensor 136, the second infrared light sensor 136 cannot detect the reflected signal from the reflector 160 and sends a second sensing signal to the controller 140. After a second duration, the aperture 161 rotates to the corresponding position of the first infrared light sensor 135, the first infrared light sensor 135 cannot detect the reflected signal from the reflector 160 and sends a first sensing signal to the controller 140. The first duration is longer than the second duration. When the initial position of the hole 161 is not the corresponding position of the first infrared light sensor 135, the second infrared light sensor 136 will sense the passage of the hole 161 before the first infrared light sensor 135. The second infrared light sensor 136 cannot detect the reflected signal from the reflector 160 and sends a second sensing signal to the controller 140. After a second period of time, the hole 161 rotates to the corresponding position of the first infrared light sensor 135. The first infrared light sensor 135 cannot detect the reflected signal from the reflector 160 and sends a first sensing signal to the controller 140. After a first period of time, the hole 161 rotates to the sensing position of the second infrared light sensor 136. The second infrared light sensor 136 cannot detect the reflected signal from the reflector 160 and sends a second sensing signal to the controller 140.
[0048] When the user moves the device backward, the scroll wheel 110 rotates clockwise. When the initial position of the hole 161 is at the corresponding position of the second infrared light sensor 136, the second infrared light sensor 136 cannot detect the reflected signal from the reflector 160 and sends a second sensing signal to the controller 140. After a first period of time, the hole 161 rotates to the corresponding position of the first infrared light sensor 135, the first infrared light sensor 135 cannot detect the reflected signal from the reflector 160 and sends a first sensing signal to the controller 140. After a second period of time, the hole 161 rotates to the corresponding position of the second infrared light sensor 136, the second infrared light sensor 136 cannot detect the reflected signal from the reflector 160 and sends a second sensing signal to the controller 140. When the initial position of the hole 161 is not the corresponding position of the second infrared light sensor 136, the first infrared light sensor 135 will sense the passage of the hole 161 before the second infrared light sensor 136. The first infrared light sensor 135 cannot detect the reflected signal from the reflector 160 and sends a first sensing signal to the controller 140. After a second period of time, the hole 161 rotates to the corresponding position of the second infrared light sensor 136. The second infrared light sensor 136 cannot detect the reflected signal from the reflector 160 and sends a second sensing signal to the controller 140. After a first period of time, the hole 161 rotates to the sensing position of the first infrared light sensor 135. The first infrared light sensor 135 cannot detect the reflected signal from the reflector 160 and sends a first sensing signal to the controller 140. The controller 140 determines the rotation direction of the roller 110 based on the time difference between the first and second sensing signals it receives, and controls the power assist motor 120 to drive the roller 110 to move in the detected direction, providing assistance for the movement of the device. The user does not need to apply a lot of force to push the device, thus making the device easier to use.
[0049] In some embodiments, see Figure 5As shown, the detection device 130 includes a photoelectric encoder disk. The photoelectric encoder disk includes a light source 137, a grating disk 138, and a photosensitive element 139. The grating disk 138 is coaxially arranged with the roller 110. The light source 137 emits light towards the grating disk 138. The photosensitive element 139 is located on the side of the grating disk 138 opposite to the light source 137 and is electrically connected to the controller 140. The grating disk 138 has regularly spaced transparent and opaque lines. The luminous flux received by the photosensitive element 139 changes synchronously with the transparent lines. Each time the grating disk 138 rotates, the photosensitive element 139 outputs a pulse signal to the controller 140. Based on the change in the pulse signal, the direction of rotation of the roller 110 can be measured. The controller 140 determines the rotation direction of the roller 110 based on the pulse signal it receives, and controls the power assist motor 120 to drive the roller 110 to move in the detected direction, providing assistance for the movement of the device. The user does not need to apply a lot of force to push the device, thus making the device easier to use.
[0050] This application also provides a cleaning device 10, including a cleaning device and a roller device 100. The roller 110 and the cleaning device are disposed on the side of the cleaning device 10 facing the object to be cleaned. The cleaning device 10 can be an accessory brush of a vacuum cleaner, carpet cleaner, fabric cleaner, mite remover, etc.; the cleaning device can be a roller brush, disc brush, etc.
[0051] When a user cleans the floor using the cleaning device 10, the cleaning device 10 needs to be moved to cover various areas of the floor. During use, the detection device 130 detects the rotation direction of the roller 110 and sends a detection signal to the controller 140. Upon receiving the detection signal from the detection device 130, the controller 140 controls the assist motor 120 to rotate in the same direction as the current rotation of the roller 110, thereby enabling the device to move via the roller 110. When the user needs to move the device, they only need to apply a small force to make the movement of the cleaning device 10 detectable by the detection device 130, which will trigger the start of the assist motor 120. The assist motor 120 drives the roller 110 to move in the detected direction, providing assistance to the movement of the cleaning device 10. The user does not need to apply a large amount of force to move the cleaning device 10, thus facilitating its use. For more complex environments, such as carpets and thresholds, the cleaning device 10 can be moved and cleaned with relatively little effort.
[0052] It should be noted that the technical solutions or features described in the above embodiments can be combined or supplemented with each other without conflict. The scope of protection of this application is not limited to the precise structures described in the above embodiments and shown in the accompanying drawings; all modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application.
Claims
1. A roller device for assisting equipment movement, characterized in that, include: Roller; An assist motor is connected to the roller and is used to drive the roller to rotate; A detection device for detecting the rotation direction of the roller; The controller, electrically connected to the detection device and the assist motor, is used to send a control signal to control the assist motor to drive the roller to rotate in the rotation direction detected by the detection device.
2. The roller device according to claim 1, characterized in that, The detection device includes a magnetic suction element and an encoding disk. One of the magnetic suction element and the encoding disk is disposed on the roller, and the other of the magnetic suction element and the encoding disk is connected to the device that is moved with the assistance of the roller. The encoding disk is electrically connected to the controller, and the encoding disk senses the relative position relationship between the magnetic suction element and the encoding disk and sends a detection signal to the controller.
3. The roller device according to claim 2, characterized in that, The roller device further includes a transmission component, the assist motor includes a motor shaft, the transmission component is connected to the motor shaft and the roller respectively, and the assist motor drives the roller to rotate through the transmission component.
4. The roller device according to claim 2, characterized in that, One of the magnetic suction element and the encoder disk is disposed on the outer wall surface of the roller; the other of the magnetic suction element and the encoder disk is disposed on the housing of the device that is moved with the assistance of the roller.
5. The roller device according to claim 2, characterized in that, The assist motor is coaxially arranged with the roller. The assist motor includes a motor shaft, which is connected to the roller. The assist motor drives the roller to rotate through the motor shaft.
6. The roller device according to claim 5, characterized in that, The magnetic suction element is disposed at one end of the motor shaft connected to the roller, and the encoder disk is disposed on the inner wall of the roller.
7. The roller device according to claim 2, characterized in that, The detection device also includes a Hall sensor, which is electrically connected to the controller. In the rotation direction of the roller, the detection device is provided with the Hall sensor at least at different positions on the encoder disk.
8. The roller device according to claim 1, characterized in that, The detection device includes an infrared light sensor, which is electrically connected to the controller. In the rotation direction of the roller, the infrared light sensor emits infrared light at least toward different positions of the roller, and a reflector is provided on the side of the roller facing the infrared light sensor.
9. The roller device according to claim 1, characterized in that, The detection device includes a photoelectric encoder disk, comprising a light source, a grating disk, and a photosensitive element. The grating disk is coaxially arranged with the roller. The light source emits light toward the grating disk. The photosensitive element is disposed on the side of the grating disk opposite to the light source. The photosensitive element is electrically connected to the controller.
10. A cleaning device, characterized in that, Includes the roller device as described in any one of claims 1-9.