Cleaning brush head and cleaning device
By introducing a sensing wheel assembly and a floating assembly into the cleaning equipment, the sensing wheel assembly senses the movement information of the cleaning brush head and drives the scraper assembly to switch positions in different directions, solving the problem that the roller brush cannot clean the corners of the wall and realizing automatic cleaning of narrow spaces.
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- SHENZHEN ROBOROCK INNOVATION TECH CO LTD
- Filing Date
- 2024-11-25
- Publication Date
- 2026-05-15
AI Technical Summary
Existing cleaning equipment often fails to effectively clean small spaces such as corners during mopping, resulting in poor cleaning performance.
A cleaning brush head was designed, comprising a sensing wheel assembly and a floating assembly. The sensing wheel assembly senses the motion information of the cleaning brush head through a transmission wheel set and a sensing element, driving the scraper assembly in the floating assembly to switch positions in different directions to automatically clean narrow spaces such as corners.
It enables automatic cleaning of small spaces such as corners, improving cleaning effectiveness and avoiding the existence of cleaning dead spots.
Smart Images
Figure CN2024134263_15052026_PF_FP_ABST
Abstract
Description
Cleaning brush heads and cleaning equipment
[0001] Cross-reference to related applications
[0002] This disclosure claims priority to Chinese patent applications Nos. 202422242573.7 and 202422251258.0, filed on September 12, 2024, the contents of which are incorporated herein by reference in their entirety. Technical Field
[0003] This disclosure relates to the field of cleaning equipment technology, and more specifically, to a cleaning brush head and cleaning equipment. Background Technology
[0004] As society continues to develop and people's living standards improve, floor scrubbers are becoming increasingly popular in households because they are more time-saving and labor-saving than traditional manual cleaning. A floor scrubber typically consists of the main unit and cleaning brush heads. The cleaning brush heads include roller brushes used for mopping, which rotate at high speed to scrub the floor.
[0005] In related technologies, when a roller brush floor scrubber is mopping, it cannot clean the edges of narrow spaces such as corners by rotating the roller brush. After the roller brush is tangent to the wall, dust, water stains and other debris in the corner will remain, resulting in poor cleaning effect and poor user experience.
[0006] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this disclosure, and therefore may include information that does not constitute prior art known to those skilled in the art. Summary of the Invention
[0007] The purpose of this disclosure is to provide a cleaning brush head and cleaning device.
[0008] According to one aspect of this disclosure, a cleaning brush head is provided, the cleaning brush head comprising:
[0009] A sensing wheel assembly is disposed on the cleaning brush head and configured to obtain motion information of the cleaning brush head;
[0010] A floating component configured to perform a floating action based on the motion information, the floating component including a scraper assembly, wherein when the cleaning brush head moves along a first direction, the scraper assembly moves to a first position in a linear motion manner; and when the cleaning brush head moves along a second direction, the scraper assembly moves to a second position in a linear motion manner.
[0011] The sensing wheel assembly includes:
[0012] A roller configured to follow the movement of the cleaning brush head;
[0013] A drive wheel assembly, at least a portion of which rotates synchronously with the roller;
[0014] A sensing element is configured to sense the rotational state of the transmission wheel assembly and output a signal to the floating assembly.
[0015] In one exemplary embodiment of this disclosure, the transmission wheel set includes:
[0016] A drive housing, comprising a first drive wheel and a second drive wheel; the first drive wheel rotates in response to the cleaning brush head having at least a tendency to move; the second drive wheel meshes with the first drive wheel and is configured to rotate under the drive of the first drive wheel;
[0017] The number of teeth on the first transmission wheel is greater than the number of teeth on the second transmission wheel.
[0018] In one exemplary embodiment of this disclosure, the drive box further includes:
[0019] A third transmission wheel is coaxially arranged with the second transmission wheel and rotates synchronously, and the third transmission wheel is configured to be sensed by the sensing element;
[0020] The diameter of the third transmission wheel is larger than the diameter of the second transmission wheel.
[0021] In one exemplary embodiment of this disclosure, the gear ratio between the first transmission wheel and the second transmission wheel is 2 to 10.
[0022] In one exemplary embodiment of this disclosure, the diameter ratio of the third transmission wheel to the second transmission wheel is 2 to 5.
[0023] In one exemplary embodiment of this disclosure, the second drive wheel rotates in either the forward or reverse direction; in response to the cleaning brush head having at least a tendency to move along the first direction, the second drive wheel rotates in the forward direction, and the sensing element outputs a first signal; in response to the cleaning brush head having at least a tendency to move along the second direction, the second drive wheel rotates in the reverse direction, and the sensing element outputs a second signal.
[0024] In one exemplary embodiment of this disclosure, the floating component further includes:
[0025] A drive component configured to drive the scraper assembly to switch between the first position and the second position.
[0026] In one exemplary embodiment of this disclosure, the driving component is configured to receive the first signal or the second signal;
[0027] In response to the drive component receiving the first signal, the scraper assembly moves to a first position; in response to the drive component receiving the second signal, the scraper assembly moves to a second position.
[0028] In one exemplary embodiment of this disclosure, the scraper assembly includes:
[0029] A scraper support frame, which is connected to the drive assembly;
[0030] A scraper body, which is connected to the scraper support frame, is configured to switch between a first position and a second position as the scraper support frame moves.
[0031] In one exemplary embodiment of this disclosure, one of the scraper support frame and the scraper body includes a guide portion, and the other includes a guide groove;
[0032] The scraper body and the scraper support frame are connected by the guide part and the guide groove.
[0033] In one exemplary embodiment of this disclosure, the floating component further includes a transmission component configured to connect the scraper assembly and the drive assembly. The transmission component includes a moving part and a driving part. The moving part is slidably connected to the body of the cleaning brush head along the axial direction of the roller brush of the cleaning brush head. The moving part is capable of reciprocating along the axial direction of the roller brush under the drive of the drive assembly. The driving part is connected to the moving part and is drively connected to the scraper assembly.
[0034] The scraper assembly includes: a scraper support frame, a scraper body, and an elastic component. The scraper body is connected to the scraper support frame, and the scraper support frame is connected to the main body of the cleaning brush head via the elastic component. Under the action of the transmission unit, the scraper support frame can compress the elastic component and move the scraper support frame to the first position in a direction perpendicular to the cleaning surface. When the transmission unit removes the force applied to the scraper support frame, the scraper support frame can move to the second position in a direction perpendicular to the cleaning surface under the elastic restoring force of the elastic component.
[0035] In one exemplary embodiment of this disclosure, the scraper support frame is provided with a guide block, and the guide block is formed with an inclined surface that extends along the axial direction of the roller brush and increases in height in a direction perpendicular to the cleaning surface;
[0036] The transmission unit is equipped with a pressure roller. When the transmission unit moves along the axial direction of the roller brush toward the first end of the roller brush, the pressure roller abuts against the inclined surface and can move from the bottom of the inclined surface toward the top of the inclined surface, so that the scraper support frame moves to the first position under the force of the pressure roller. When the transmission unit moves along the axial direction of the roller brush toward the second end of the roller brush, the pressure roller moves from the top of the inclined surface toward the bottom of the inclined surface, so that the scraper support frame moves to the second position under the elastic restoring force of the elastic component.
[0037] In one exemplary embodiment of this disclosure, the scraper assembly further includes:
[0038] A limiting member is provided at at least one end of the scraper support frame.
[0039] In one exemplary embodiment of this disclosure, the limiting member includes:
[0040] A limiting buckle is provided at the end of the limiting member.
[0041] In one exemplary embodiment of this disclosure, the driving component includes:
[0042] Power source;
[0043] A drive unit connected to the scraper support frame, the drive unit being configured to drive the scraper support frame to move under the drive of the power source.
[0044] In one exemplary embodiment of this disclosure, the driving unit includes:
[0045] A swing arm, which is configured to rotate under the power source;
[0046] A limiting baffle is configured to float up and down as the swing arm rotates.
[0047] In one exemplary embodiment of this disclosure, the driving unit includes:
[0048] A cam, the cam being configured to rotate downwards from the power source;
[0049] A limiting baffle is configured to float up and down as the cam rotates.
[0050] In one exemplary embodiment of this disclosure, the driving unit further includes:
[0051] An elastic element configured to provide a restoring force to the limiting baffle.
[0052] In one exemplary embodiment of this disclosure, the driving unit further includes:
[0053] A guide rod, configured to connect the limiting baffle and the scraper support frame.
[0054] In one exemplary embodiment of this disclosure, the scraper body switches between the first position and the second position in a generally vertical direction.
[0055] In one exemplary embodiment of this disclosure, the driving unit includes:
[0056] A gear set connected to the scraper support frame, the gear set being configured to drive the scraper support frame to rotate under the drive of the power source.
[0057] In one exemplary embodiment of this disclosure, the scraper body rotates within a preset angle.
[0058] In one exemplary embodiment of this disclosure, the sensing element includes at least one of the following: a stress sensor, a TOF component, a line laser component, a radar component, an IMU, an encoder, and a Hall sensor.
[0059] In one exemplary embodiment of this disclosure, the cleaning brush head further includes:
[0060] A switching element configured to manually control whether the floating component performs a floating action based on the motion information.
[0061] According to one aspect of this disclosure, a cleaning device is provided, which includes a cleaning brush head as described above.
[0062] The cleaning brush head provided in this disclosure senses the motion information of the cleaning brush head through a sensing wheel assembly. A floating assembly performs a floating action based on this motion information, such that when the cleaning brush head moves in a first direction, the scraper assembly moves to a first position to clean narrow spaces such as corners; when the cleaning brush head moves in a second direction, the scraper assembly moves to a retracted second position. Therefore, this disclosure can automatically control the scraper assembly to perform scraping actions through the sensing wheel assembly, thereby automatically cleaning narrow spaces such as corners.
[0063] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Attached Figure Description
[0064] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure. It is obvious that the drawings described below are merely some embodiments of this disclosure, and those skilled in the art can obtain other drawings based on these drawings without any inventive effort.
[0065] Figure 1 is a schematic diagram of the structure of a cleaning brush head provided in an embodiment of this disclosure.
[0066] Figure 2 is a structural schematic diagram of a cleaning brush head in another state according to an embodiment of the present disclosure.
[0067] Figure 3 is a schematic diagram of the structure of a sensing component provided in an embodiment of this disclosure.
[0068] Figure 4 is a schematic diagram of the meshing structure of the first transmission wheel and the second transmission wheel provided in an embodiment of this disclosure.
[0069] Figure 5 is a schematic diagram of the structure of a floating component provided in one embodiment of this disclosure.
[0070] Figure 6 is a schematic diagram of the structure of a floating component in a falling state according to an embodiment of the present disclosure.
[0071] Figure 7 is a schematic diagram of the structure of a cleaning brush head provided in another embodiment of this disclosure.
[0072] Figure 8 is a structural schematic diagram of a cleaning brush head in another state according to another embodiment of the present disclosure.
[0073] Figure 9 is a schematic diagram of the cleaning brush head with the upper shell opened according to another embodiment of the present disclosure.
[0074] Figure 10 is a schematic diagram of a cleaning brush head opening the floating component housing according to another embodiment of the present disclosure.
[0075] Figure 11 is a schematic diagram of a pressure plate provided in another embodiment of this disclosure.
[0076] Figure 12 is a schematic diagram of a floating component provided in another embodiment of this disclosure.
[0077] Figure 13 is a schematic diagram of another perspective of a floating component provided in another embodiment of this disclosure.
[0078] Figure 14 is a schematic diagram of removing the floating component housing according to another embodiment of the present disclosure.
[0079] Figure 15 is a schematic diagram of the structure of a floating component provided in an embodiment of this disclosure.
[0080] Explanation of reference numerals in the attached figures:
[0081] 100. Cleaning brush head; 110. Roller brush;
[0082] 120. Floating components;
[0083] 121. Scraper assembly; 1211. Scraper support frame; 1212. Scraper body; 1213. Limiting component; 12131. Limiting buckle; 1214. Guide block; 1215. Elastic component; 12151. Connecting rod; 12152. Pressure plate; 12153. Spring;
[0084] 122. Drive assembly; 1221. Power source; 1222. Drive unit; 12221. Rotating arm; 12222. Limiting baffle; 12223. Elastic element; 12224. Guide rod; 12225. Gear set; 1226. Swing arm;
[0085] 123. Floating component housing; 1231. Lower surface;
[0086] 130. Sensing wheel assembly; 131. First transmission wheel; 132. Second transmission wheel; 133. Third transmission wheel; 1311. First transmission rod; 1321. Second transmission rod; 134. First roller; 135. Sensing element; 136. Shock-absorbing spring;
[0087] 141. Moving part; 142. Transmission part; 143. Slide groove; 144. First rotating wheel; 145. Second rotating wheel; 146. Pressure plate; 147. Pressure roller. Detailed Implementation
[0088] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein; rather, they are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and therefore their detailed description will be omitted.
[0089] Although relative terms such as "up" and "down" are used in this specification to describe the relative relationship of one component of an icon to another, these terms are used only for convenience, such as according to the orientation of the examples shown in the accompanying drawings. It is understood that if the device of the icon is flipped upside down, the component described as "up" will become the component described as "down." When a structure is "up" of another structure, it may mean that the structure is integrally formed on the other structure, or that the structure is "directly" mounted on the other structure, or that the structure is "indirectly" mounted on the other structure through another structure.
[0090] The terms “a,” “one,” “the,” “the,” and “at least one” are used to indicate the presence of one or more elements / components / etc.; the terms “including” and “having” are used to indicate an open-ended inclusion and to mean that there may be other elements / components / etc. in addition to the listed elements / components / etc.; the terms “first,” “second,” and “third,” etc., are used only as markers and are not a limitation on the number of objects.
[0091] The embodiments of this disclosure provide a cleaning device for performing cleaning tasks. The cleaning device can be a floor scrubbing robot, a sweeping robot, a sweeping and mopping robot, or other cleaning devices capable of autonomously completing cleaning tasks. Cleaning robots can also be handheld, remote-controlled, or other semi-automatic cleaning devices requiring human operation.
[0092] Typically, when cleaning equipment performs cleaning tasks using its brush heads, it struggles to thoroughly clean certain areas, such as corners or baseboards. When the roller brush on the cleaning brush head reaches the baseboard, the cylindrical brush leaves unattended areas, resulting in incomplete cleaning and affecting the cleaning effect. Furthermore, current cleaning equipment suffers from issues such as misdetection of forward and backward movement and delayed detection.
[0093] To address the aforementioned technical problems, embodiments of this disclosure provide a cleaning brush head, comprising: a sensing wheel assembly and a floating assembly. The sensing wheel assembly is disposed on the cleaning brush head and configured to obtain motion information of the cleaning brush head. The floating assembly is configured to perform a floating action based on the motion information and includes a scraper assembly. When the cleaning brush head moves along a first direction, the scraper assembly moves to a first position in a linear motion manner; when the cleaning brush head moves along a second direction, the scraper assembly moves to a second position in a linear motion manner. In the second direction, the second position is closer to the cleaning brush head than the first position; that is, the first position is a position where the brush head is lowered to perform a scraping action, and the second position is a position in a retracted state spaced apart from the ground.
[0094] The sensing wheel assembly includes a roller, a drive wheel assembly, and a sensing element. The roller is configured to follow the movement of the cleaning brush head. At least a portion of the drive wheel assembly rotates synchronously with the first roller. The sensing element is configured to sense the rotational state of the drive wheel assembly and output a signal to the floating assembly.
[0095] The cleaning brush head provided in this disclosure senses the movement information of the cleaning brush head through a sensing wheel assembly. A floating assembly performs a floating action based on this movement information, so that when the cleaning brush head moves in a first direction, the scraper assembly moves to a first position to clean narrow spaces such as corners; when the cleaning brush head moves in a second direction, the scraper assembly moves to a retracted second position. Therefore, this disclosure can automatically control the scraper assembly to perform scraping actions through the sensing wheel assembly, thereby automatically cleaning narrow spaces such as corners.
[0096] The optional embodiments of this disclosure are described in detail below with reference to the accompanying drawings.
[0097] To more clearly describe the behavior of the cleaning brush head, as shown in Figure 1, the following directional definitions are made: The cleaning brush head can be calibrated by the following three mutually perpendicular axes: the horizontal axis Y, the front-back axis X, and the central vertical axis Z. The direction along the front-back axis X is labeled "backward," and the direction opposite to the arrows on the front-back axis X is labeled "forward." The direction along the horizontal axis Y is the "right side" of the cleaning brush head, and the direction opposite to the arrows on the horizontal axis Y is the "left side." The vertical axis Z extends upward along the bottom surface of the cleaning brush head; the direction along the vertical axis Z is the "top" side of the cleaning brush head, and the direction opposite to the arrows on the vertical axis Z is the "bottom" side of the cleaning brush head.
[0098] As shown in Figure 1, this application embodiment provides a cleaning brush head 100, which is applied to cleaning equipment such as floor scrubbers. The cleaning brush head includes a sensing wheel assembly, which is configured to sense the motion information of the cleaning brush head. The motion information includes at least one of the motion state and motion direction of the cleaning brush head. The motion direction includes a first direction and a second direction, wherein the first direction is from front to back and the second direction is from back to front.
[0099] Figure 1 is a schematic diagram of the floating component 120 in the cleaning brush head when it is raised, and Figure 2 is a schematic diagram of the floating component 120 in the cleaning brush head when it is lowered. As shown in Figures 1 and 2, the cleaning brush head 100 also includes a floating component 120, which performs a floating action according to motion information. The floating component 120 includes a scraper component 121. When the cleaning brush head moves in a first direction, the scraper component 121 moves to a first position. For example, when the cleaning brush head reaches a corner and is about to move in the first direction, the scraper component 121 moves to the first position, as shown in Figure 2. When the cleaning brush head 100 moves in a second direction, the scraper component 121 moves to the second position, as shown in Figure 1.
[0100] When the roller brush 110 of the cleaning brush head 100 reaches the corner of the wall, since the roller brush 110 is a cylindrical structure, it cannot reach the corner. At this time, the scraper assembly 121 automatically descends from the second position of the storage state (as shown in Figure 1) to the first position where the scraping action can be performed (as shown in Figure 2). At this time, as the cleaning brush head 100 moves along the first direction, the scraper assembly 121 can clean the corner of the wall.
[0101] In some embodiments, when the cleaning brush head is cleaning a surface that is not in a corner, or when the cleaning brush head is detected to be moving in a first direction (from front to back), the scraper assembly 121 may also move to a first position (lowered to perform scraping), as shown in FIG2, to scrape the cleaning surface to enhance the cleaning effect.
[0102] In some embodiments, when the cleaning brush head 100 moves in the second direction (from back to front), the scraper assembly 121 moves to the second position (retracted state), as shown in FIG1, to avoid damage to the scraper assembly 121 due to reverse movement.
[0103] In some embodiments, the cleaning brush head 100 further includes a sensing wheel assembly 130, as shown in FIG3. The sensing wheel assembly 130 is disposed inside the cleaning brush head 100 and is at least partially exposed in the cleaning brush head 100 and in contact with the cleaning surface. The sensing wheel assembly 130 is configured to obtain motion information of the cleaning brush head 100.
[0104] In some embodiments, the sensing wheel assembly 130 includes a first roller 134 disposed at the bottom of the cleaning brush head 100 and at least partially exposed on the side of the cleaning brush head 100 that is in contact with the cleaning surface, configured to move the cleaning brush head 100.
[0105] In some embodiments, the sensing wheel assembly 130 further includes a transmission wheel assembly, at least a portion of which is connected to and rotates synchronously with the first roller 134. Specifically, the first roller 134 and the transmission wheel assembly are connected via a first transmission rod 1311. The transmission wheel assembly includes a first transmission wheel 131 and a second transmission wheel 132. The first transmission wheel 131 and the first roller 134 are fixedly connected to and rotate synchronously via the first transmission rod 1311. The second transmission wheel 132 meshes with the first transmission wheel 131 and is configured to rotate under the drive of the first transmission wheel 131; that is, the second transmission wheel 132 is the driven wheel of the first transmission wheel 131.
[0106] In some embodiments, as shown in FIG4, the sensing wheel assembly 130 further includes a drive housing, which consists of a first drive wheel 131 and a second drive wheel 132. The first drive wheel 131 rotates in response to the cleaning brush head having at least a tendency to move. The second drive wheel 132 meshes with the first drive wheel 131 and rotates under the drive of the first drive wheel 131. The number of teeth on the first drive wheel 131 is greater than the number of teeth on the second drive wheel 132. In response to the first roller 134 driving the first drive wheel 131 to rotate, the second drive wheel 132 rotates along with the rotation of the first drive wheel 131. Since the number of teeth on the first drive wheel 131 is greater than the number of teeth on the second drive wheel 132, when the first drive wheel 131 drives the second drive wheel 132 to rotate, the rotational speed of the second drive wheel 132 is greater than that of the first drive wheel 131; that is, the rotational angular velocity of the second drive wheel 132 is greater than that of the first drive wheel 131. Furthermore, the rotational angle of the second drive wheel 132 is greater than that of the first drive wheel 131 per unit time. Therefore, the slight rotation of the first drive wheel 131 can be amplified by the second drive wheel 132, so that the slight rotation or rotation trend of the cleaning brush head 100 can be easily detected by the sensing element 135 of the sensing wheel assembly 130.
[0107] In some embodiments, the tooth ratio of the first transmission wheel 131 to the second transmission wheel 132 is 2 to 10, for example, tooth ratios of 2, 3, 4, 5, 6, 7, 8, 9, 10, etc., which are not listed here. When the tooth ratio of the first transmission wheel 131 to the second transmission wheel 132 is at a low value, it affects the judgment accuracy and easily causes excessively long response time; when the tooth ratio of the first transmission wheel 131 to the second transmission wheel 132 is at a high value, slight disturbances can easily cause false detection and damage to the drive box. By setting the tooth ratio of the first transmission wheel 131 to the second transmission wheel 132 to 2 to 10, this disclosure can amplify the small rotation of the first transmission wheel 131, making the rotation angle of the second transmission wheel 132 easily detectable by the sensing element 135 of the sensing wheel, while avoiding the situation where the judgment accuracy is affected when the tooth ratio is low, and avoiding the situation where slight disturbances can easily cause false detection and damage to the drive box when the tooth ratio is high.
[0108] In some embodiments, the sensing wheel assembly 130 further includes a sensing element 135. The sensing element 135 is disposed adjacent to the second transmission wheel 132, and is configured to sense the movement and direction of the transmission wheel assembly, and output a signal to the floating assembly. Specifically, the sensing element 135 can monitor the movement state and direction of the second transmission wheel 132, and output a signal to the floating assembly based on the movement information of the second transmission wheel 132.
[0109] In some embodiments, in response to the rotation of the first roller 134 relative to the cleaning surface, the first drive wheel 131 rotates synchronously with the first roller 134. Since the first drive wheel 131 meshes with the second drive wheel 132, the second drive wheel 132 rotates forward or backward under the drive of the first drive wheel 131. In response to the cleaning brush head 100 having a tendency to move at least along a first direction, the second drive wheel 132 rotates forward, and the sensing element 135 outputs a first signal; in response to the cleaning brush head 100 having a tendency to move at least along a second direction, the second drive wheel 132 rotates backward, and the sensing element 135 outputs a second signal. The first signal and the second signal have different waveforms, and the first signal and the second signal can be used to control the switching of the floating component between a first position and a second position.
[0110] It should be noted separately that the cleaning brush head 100 has at least a tendency to move in the first or second direction, which can be understood as the first roller 134 having a tendency to rotate in the forward or reverse direction, or the first roller 134 having already rotated in the forward or reverse direction. Forward rotation can be clockwise rotation; reverse rotation can be counterclockwise rotation.
[0111] In some embodiments, the sensing element 135 may be a Hall encoder, which measures speed by detecting the pulse signal output by the Hall encoder. The cleaning brush head 100 is moved in a first direction or a second direction by detecting the rising edge pulse and the falling edge pulse. In response to the cleaning brush head 100 moving in the first direction, the scraper assembly 121 switches to a first position to perform a scraping action; in response to the cleaning brush head 100 moving in the second direction, the scraper assembly 121 switches to a second position and remains in a retracted state.
[0112] In some embodiments, the motion information of the cleaning brush head 100 can also be determined by at least one of the following sensing elements 135: a stress sensor, a TOF component, a line laser component, a radar component, an IMU, and an encoder. For example, the stress sensor at the tip of the roller brush 110 can determine whether the cleaning brush head 100 has collided with an obstacle, such as a wall, to detect that the tip of the cleaning brush head 100 has reached the edge of the obstacle. At this point, it can be determined that the corner between the obstacle and the surface to be cleaned can no longer be cleaned by the roller brush 110. The radar component can also determine whether the cleaning brush head 100 has reached the edge of a corner. Other sensing wheel components 130 can also be used for determination, which will not be elaborated here.
[0113] In some embodiments, the drive housing is provided with a second transmission rod 1321, which is connected to a second transmission wheel 132. A third transmission wheel 133 is provided on the second transmission rod 1321 between the second transmission wheel 132 and the drive housing. The third transmission wheel 133 rotates synchronously with the second transmission wheel 132, configured to make the rotation angle of the second transmission wheel 132 easier to be detected by the sensing element 135.
[0114] Specifically, since the number of teeth of the second transmission wheel 132 is less than that of the first transmission wheel 131, and the second transmission wheel 132 is smaller overall, the rotation angle of the second transmission wheel 132 is not easily detected by the sensing element 135 during rotation. Therefore, a third transmission wheel 133 is provided on the second transmission rod 1321. The third transmission wheel 133 is coaxially arranged with the second transmission wheel 132 and rotates synchronously. The third transmission wheel 133 is configured to amplify the rotation angle of the second transmission wheel 132. At this time, the sensing element 135 can more easily detect the rotation angle of the third transmission wheel 133, and then quickly feed back the motion information of the cleaning brush head 100 to the drive assembly 122.
[0115] In some embodiments, the diameter ratio of the third transmission wheel 133 to the second transmission wheel 132 is 2 to 5, for example, a diameter ratio of 2, 3, 4, 5, etc., which are not listed here. When the diameter ratio of the third transmission wheel 133 to the second transmission wheel 132 is low, it affects the judgment accuracy and easily causes excessively long response time; when the diameter ratio of the third transmission wheel 133 to the second transmission wheel 132 is high, slight disturbances can easily cause false detection and damage to the drive box. By making the diameter ratio of the third transmission wheel 133 to the second transmission wheel 132 2 to 5, this disclosure can amplify the small rotation of the second transmission wheel 132, making the rotation angle of the third transmission wheel 133 easily detectable by the sensing element 135 of the sensing wheel, while avoiding the situation where the judgment accuracy is affected when the diameter ratio is low, and avoiding the situation where slight disturbances can easily cause false detection and damage to the drive box when the diameter ratio is high.
[0116] In some embodiments, the sensing wheel assembly 130 further includes a shock-absorbing spring 136 disposed between the first roller 134 and the housing of the cleaning brush head 100, configured to dampen the sensing wheel assembly 130 when the brush head falls from a plane with a drop, thereby preventing damage to the sensing wheel assembly 130.
[0117] In other embodiments, the cleaning brush head 100 further includes a second roller mounted on the bottom of the cleaning brush head 100. In response to the rotation of the first roller 134, the second roller assists in the movement of the cleaning brush head 100. The second roller is connected to a transmission wheel assembly, and at least a portion of the transmission wheel assembly rotates synchronously with the second roller. Specifically, the second roller and the transmission wheel assembly are connected via a first transmission rod 1311. The transmission wheel assembly includes a first transmission wheel 131 and a second transmission wheel 132. The first transmission wheel 131 and the first roller 134 are fixedly connected to each other via the first transmission rod 1311 and rotate synchronously. The second transmission wheel 132 meshes with the first transmission wheel 131 and is configured to rotate under the drive of the first transmission wheel 131; that is, the second transmission wheel 132 is the driven wheel of the first transmission wheel 131. Because the number of teeth on the first transmission wheel 131 is greater than the number of teeth on the second transmission wheel 132, when the first transmission wheel 131 drives the second transmission wheel 132 to rotate, the rotational speed of the second transmission wheel 132 is greater than that of the first transmission wheel 131. That is, the rotational angular velocity of the second transmission wheel 132 is greater than that of the first transmission wheel 131. Furthermore, the rotational angle of the second transmission wheel 132 is greater than that of the first transmission wheel 131 per unit time. Therefore, the second transmission wheel 132 can amplify the minute rotation of the first transmission wheel 131, making it easier for the sensor element 135 of the sensing wheel assembly 130 to detect the minute rotation or rotational trend of the cleaning brush head 100. In this embodiment, the sensing wheel assembly 130 can be used as a separate wheel set on the cleaning brush head 100. In response to the movement of the cleaning brush head, the sensing wheel assembly identifies the movement state of the cleaning brush head through the movement of the second roller.
[0118] In some embodiments, as shown in FIG5, FIG5 is a schematic structural diagram of a floating assembly according to an exemplary embodiment. The floating assembly 120 includes a floating assembly housing 123 disposed at the front end of the cleaning brush head 100, and the floating assembly housing 123 can accommodate a roller brush 110, etc. The floating assembly 120 also includes a drive assembly 122 located within the floating assembly housing 123, and the drive assembly 122 is configured to drive the scraper assembly 121 to switch between a first position and a second position based on the sensing result of the sensing wheel assembly 130.
[0119] Specifically, the drive component 122 is configured to receive a first signal or a second signal. In response to the drive component 122 receiving the first signal, the scraper assembly 121 moves to a first position; in response to the drive component 122 receiving the second signal, the scraper assembly 121 moves to a second position. Switching between the first and second positions includes vertical movement and rotational movement of the scraper assembly 121. Compared to rotational movement, vertical movement allows the scraper body 1212 of the scraper assembly 121 to better conform to the corner of the obstacle, preventing the scraper body 1212 from contacting the obstacle and damaging the scraper assembly 121 during rotational movement.
[0120] In some embodiments, as shown in FIG5, the scraper assembly 121 includes a scraper support frame 1211, which is disposed on the lower side of the lower surface 1231 of the floating assembly housing 123 and connected to the drive assembly 122, and can move up and down under the drive of the drive assembly 122; the scraper assembly 121 also includes a scraper body 1212, which is connected to the scraper support frame 1211 and configured to move and switch between a first position and a second position as the scraper support frame 1211 moves. The scraper body 1212 has an arc-shaped structure, which is a slightly downward curved arc surface structure in its natural state, and can clean part of the debris on the ground when moving backward.
[0121] In some embodiments, the scraper support frame 1211 includes a guide portion or a guide groove; correspondingly, the scraper body 1212 includes a guide groove or a guide portion; the guide portion is inserted into the guide groove laterally, so that the scraper body 1212 and the scraper support frame 1211 are detachably connected through the cooperation of the guide portion and the guide groove.
[0122] In some embodiments, the scraper assembly 121 further includes a limiting member 1213, which is disposed at at least one end of the scraper support frame 121, i.e., the limiting member 1213 is disposed at one or both ends of the scraper support frame 121. The limiting member 1213 extends in a direction substantially perpendicular to the lower surface 1231 of the floating assembly housing 123, and moves up and down with the up and down movement of the scraper support frame 1211, thereby preventing lateral movement of the scraper support frame 1211. Optionally, the lower surface 1231 of the floating assembly housing 123 has a groove at its end, and the limiting member 1213 slides up and down within the groove at the end, further limiting the lateral and longitudinal swaying of the scraper support frame 1211, ensuring the stability of the scraper assembly 121 when performing cleaning tasks.
[0123] In some embodiments, the limiting member 1213 includes a limiting buckle 12131, which is disposed at the end of the limiting member 1213 to prevent the limiting member 1213 from falling off the lower surface 1231 of the floating component housing 123 when it moves up and down. The limiting member 1213 can be in the form of a hook or a cantilever, and there is no limitation on this.
[0124] In some embodiments, as shown in FIG5, the drive assembly 122 includes a power source 1221, which is, for example, a motor or a power output section of a motor, and can reverse direction according to the control of a drive signal to provide driving force in different directions; the drive assembly 122 also includes a drive section 1222, which is connected to the scraper support frame 1211, and the drive section 1222 is configured to drive the scraper support frame 1211 to move under the drive of the power source 1221.
[0125] In some embodiments, the drive unit 1222 includes a rotating arm 12221 connected to the output shaft of the power source 1221 and configured to rotate under the drive of the power source 1221. The rotating arm 12221 can be a rocker arm or a cam, and periodically outputs a downward force under the drive of the power source 1221. The drive unit 1222 also includes a limiting baffle 12222, which is separately or non-separatedly connected to the rotating arm 12221 and configured to move up and down as the rotating arm 12221 rotates.
[0126] In some embodiments, the drive unit 1222 further includes an elastic element 12223, such as a helical spring, which is configured to provide a restoring force to the limiting baffle. When the force of the rotating arm 12221 pressing the limiting baffle 12222 downward is removed, the limiting baffle 12222 returns to the upward position under the drive of the elastic element 12223, at which time the scraper assembly 121 returns to the second position.
[0127] In some embodiments, FIG6 is a schematic diagram of the floating component in its fallen state. As shown in FIG6, the drive unit 1222 further includes a guide rod 12224. One end of the guide rod 12224 is connected to the limiting baffle 12222, and the other end passes through the lower surface 1231 of the floating component housing 123 and is fixedly connected to the scraper support frame 1211. It is configured to drive the scraper support frame 1211 to move up and down under the drive of the drive unit 1222. The limiting baffle 12222 moves downward under the action of the rotating arm 12221, compressing the elastic element 12223 and driving the scraper support frame 1211 and the scraper body 1212 to move downward through the guide rod 12224, so as to clean the cleaning surface of the corner.
[0128] In some embodiments, as shown in Figures 5-6, the drive unit 1222 drives the scraper support frame 1211 in a generally vertical direction, and the scraper body 1212 moves in a generally vertical direction between a first position and a second position, thereby enabling the scraper body 1212 to clean close to the corner of the wall.
[0129] In some other embodiments, as shown in Figures 7 to 10, the floating component 120 further includes a transmission component configured to connect the scraper component 121 and the drive component 122.
[0130] As shown in Figures 10 and 11, the transmission assembly includes a moving part 141 and a transmission part 142. The moving part 141 is slidably connected to the body of the cleaning brush head 100 along the axial direction of the roller brush 110 of the cleaning brush head 100. Driven by the drive assembly 122, the moving part 141 can reciprocate along the axial direction of the roller brush 110 and can move a certain distance toward both ends of the roller brush 110. The transmission part 142 is connected to the moving part 141 and is drively connected to the scraper assembly 121. Driven by the moving part 141, the transmission part 142 can move along the axial direction of the rotating shaft, that is, it moves parallel to the rotating shaft under the drive of the moving part 141.
[0131] The main body of the moving part 141 extends perpendicularly to the axial direction of the roller brush 110, and the main body of the transmission part 142 extends parallel to the axial direction of the roller brush 110. That is, the transmission assembly formed by the moving part 141 and the transmission part 142 can be in a T-shape. The transmission part 142 is located on one side of the roller brush 110 in the forward direction. One end of the moving part 141 is connected to the transmission part 142, and the other end extends into the middle region of the main body of the cleaning brush head 100. The drive assembly 122 can be located in the middle region of the main body of the cleaning brush head 100, facilitating the layout of the drive assembly 122.
[0132] The drive assembly 122 may include a power source 1221 and a swing arm 1226. The power source 1221 may be a drive motor. One end of the swing arm 1226 is connected to the drive motor, which drives the swing arm 1226 to swing. The other end of the swing arm 1226 is movably connected to the end of the moving part 141 away from the transmission part 142. The drive motor drives the swing arm 1226 to swing back and forth, thereby driving the moving part 141 to move back and forth along the axial direction of the roller brush 110, thus controlling the movement of the transmission part 142 in the axial direction of the roller brush 110. In some embodiments, the drive motor may also be connected to the moving part 141 to directly drive the moving part 141 to move back and forth along the axial direction of the roller brush 110. For example, a gear set 12225 and a rack may be used to form a linear drive for the moving part 141. Of course, the purpose of driving the moving part 141 to move back and forth along the axial direction of the roller brush 110 may also be achieved by means of belt drive, shaft drive, etc. This disclosure does not limit this.
[0133] The cleaning brush head 100 also includes a floating component housing 123, on which a limiting groove is formed. At least a portion of the moving part 141 is located in the limiting groove. The limiting groove restricts the reciprocating distance of the moving part 141 along the axial direction of the roller brush 110 by forming groove walls on both sides of the groove. Alternatively, protruding structures can be formed on the floating component housing 123, with two protruding structures located on both sides of the moving part 141, to further restrict the reciprocating distance of the moving part 141 along the axial direction of the roller brush 110. The restriction on the reciprocating distance of the moving part 141 can be adjusted by adjusting the width of the limiting groove or the gap between the two protruding structures, and can be set according to actual needs, for example, 1cm to 5cm. This disclosure does not impose any limitations on this.
[0134] The transmission unit 142 is provided with a groove 143, and the floating component housing 123 is provided with a slider. The groove 143 extends along the axial direction of the roller brush 110, and the slider is located in the groove 143, forming a guide for the transmission unit 142 along the axial direction of the roller brush 110, thereby improving the stability of the transmission unit 142 during movement. At the same time, the length of the groove 143 limits the movement distance of the slider relative to the transmission unit 142, that is, it limits the movement distance of the transmission unit 142 relative to the floating component housing 123 along the axial direction of the roller brush 110.
[0135] The transmission unit 142 has a groove 143 at each end of the roller brush 110 along the axial direction. The floating component housing 123 has two corresponding sliders. The two sliders cooperate with the two grooves 143 to limit the sliding direction and the sliding distance. In addition, they also support the transmission unit 142, so that the movement distance of the transmission unit 142 can be precisely controlled.
[0136] The slider may be provided with a first rotating wheel 144, which contacts the groove wall in the slide groove 143, so that a rolling connection is formed between the slider and the transmission part 142.
[0137] As shown in Figure 11, a pressure plate 146 may be provided on the floating component housing 123, and the pressure plate 146 is arranged parallel to the transmission part 142. The transmission part 142 is provided with a second rotating wheel 145 for the pressure plate 146 to abut against. When the transmission part 142 moves relative to the pressure plate 146 in the axial direction of the roller brush 110, the second rotating wheel 145 rolls on the pressure plate 146, forming a rolling abutment between the transmission part 142 and the pressure plate 146. The pressure plate 146 can form an assembly positioning of the transmission part 142 in the axial direction perpendicular to the roller brush 110. Of course, the second rotating wheel 145 may also be provided on the pressure plate 146, and this disclosure does not limit this.
[0138] As shown in Figures 12 and 13, a receiving space can be formed on the floating component housing 123, and the transmission part 142 and the pressure plate 146 can be located in the receiving space to protect the components and prevent sewage, dust and other debris from affecting their service life.
[0139] As shown in Figure 14, the scraper assembly 121 includes: a scraper support frame 1211, a scraper body 1212, and an elastic component 1215. The scraper body 1212 is connected to the scraper support frame 1211, and the scraper support frame 1211 is connected to the main body of the cleaning brush head 100 through the elastic component 1215. Under the action of the transmission unit 142, the scraper support frame 1211 can compress the elastic component 1215 and move the scraper support frame 1211 to a first position in a direction perpendicular to the cleaning surface. When the transmission unit 142 removes the force applied to the scraper support frame 1211, the scraper support frame 1211 can move to a second position in a direction perpendicular to the cleaning surface under the elastic restoring force of the elastic component 1215.
[0140] Among them, the elastic component 1215 connects the scraper support frame 1211 and the floating component housing 123. As shown in Figure 14, the elastic component 1215 may include a connecting rod 12151, a pressure plate 12152, and a spring 12153. One end of the connecting rod 12151 is fixedly connected to the scraper support frame 1211, and the other end passes through the floating component housing 123 and is located on the side of the floating component housing 123 away from the scraper support frame 1211, and is connected to the pressure plate 12152. The connecting rod 12151 can move up and down in the through hole on the floating component housing 123. The spring 12153 is located between the pressure plate 12152 and the inner wall of the floating component housing 123. When the scraper support frame 1211 moves relative to the floating component housing 123 to the first position, that is, when it descends towards the cleaning surface, the pressure plate 12152 moves toward the side of the floating component housing 123, and the distance between the pressure plate 12152 and the floating component housing 123 decreases. The elastic component 12153 is in a compressed state under the pressure of the pressure plate 12152.
[0141] The spring 12153 can be sleeved on the connecting rod 12151 or spaced apart from the connecting rod 12151. Assembly structures matching the spring 12153 are provided on the floating component housing 123 and the pressure plate 12152 to ensure the spring 12153 is stably positioned between the pressure plate 12152 and the floating component housing 123. Of course, the spring 12153 can also be other elastic elements 12223, such as a rubber block with a high elastic modulus; this disclosure does not impose any limitations.
[0142] As shown in Figure 14, each end of the scraper support frame 1211 may be provided with a set of elastic components 1215, so that the scraper support frame 1211 can move horizontally up and down as much as possible, so that the scraper on the scraper support frame 1211 can make horizontal contact with the ground, thereby improving the cleaning effect.
[0143] The floating component housing 123 forms a receiving space, and the elastic component 1215 can be located in the receiving space. Only one end of the connecting rod 12151 that connects to the scraper support frame 1211 extends out of the receiving space to form protection for the elastic component 1215 and prevent sewage, dust and other debris from affecting the performance of the elastic component 1215.
[0144] As shown in Figure 14, the scraper support frame 1211 is provided with a guide block 1214. The guide block 1214 has an inclined surface that extends along the axial direction of the roller brush 110 and increases in height in a direction perpendicular to the cleaning surface. The transmission part 142 is provided with a pressure roller 147. When the transmission part 142 moves along the axial direction of the roller brush 110 toward the first end of the roller brush 110, the pressure roller 147 abuts against the inclined surface and can move from the bottom to the top of the inclined surface, so that the scraper support frame 1211 moves to the first position under the force of the pressure roller 147. When the transmission part 142 moves along the axial direction of the roller brush 110 toward the second end of the roller brush 110, the pressure roller 147 moves from the top to the bottom of the inclined surface, so that the scraper support frame 1211 moves to the second position under the elastic restoring force of the elastic component 1215.
[0145] As shown in Figure 14, the guide block 1214 can be triangular, and the angle between the upper inclined surface of the guide block 1214 and the horizontal plane can be 45°, so that the pressure roller 147 can stably apply a downward force to the guide block 1214. Of course, the angle between the upper inclined surface of the guide block 1214 and the horizontal plane can be 30° to 60°, and this disclosure does not limit it.
[0146] As shown in Figure 14, a guide block 1214 can be set at each end of the scraper support frame 1211. The two guide blocks 1214 cooperate with two sets of elastic components 1215 so that the scraper on the scraper support frame 1211 can make horizontal contact with the ground, thereby improving the cleaning effect.
[0147] The floating component housing 123 has a through hole, and the end of the guide block 1214 away from the scraper support frame 1211 extends into the floating component housing 123 through the through hole, so as to contact the pressure roller 147, so as to move between the first position and the second position with the cooperation of the pressure roller 147 and the elastic component 1215.
[0148] In some other embodiments, as shown in FIG15, FIG15 is a structural schematic diagram of a floating assembly according to another embodiment. The drive unit 1222 includes a gear set 12225, one end of which is connected to a power source 1221, and the other end is connected to a scraper support frame 1211. The gear set 12225 is configured to drive the scraper support frame 1211 to rotate within a preset angle under the drive of the power source 1221. The number of gears in the gear set 12225 is not specifically limited; for example, it can have 3-5 gears for multi-stage transmission. When the cleaning brush head reaches the corner, the power source 1221 outputs driving force, which outputs rotational driving force through the gear set 12225. The gear set 12225 drives the scraper support frame 1211 to rotate within the preset angle, thereby driving the scraper body 1212 to rotate within the preset angle. This preset angle allows the scraper body 1212 to rotate to approximately close to the surface to be cleaned, thus facilitating the cleaning of the corner by the scraper body 1212.
[0149] In some embodiments, the cleaning brush head further includes a switch, which can be a structural switch or an electronic switch. The switch is configured to allow the user to manually control whether the floating component performs a floating action based on motion information. When the switch is closed, the cleaning brush head will not perform the corresponding action even if the conditions for automatically controlling the floating component to perform a floating action are met. Only when the switch is open will the cleaning brush head perform the corresponding action if the conditions for automatically controlling the floating component to perform a floating action are met. This increases the flexibility of user control and meets different user needs.
[0150] The cleaning device provided in this disclosure may include the cleaning brush head as described above. Optionally, the cleaning device may also include structures or components such as a handle, water tank, and control unit, which will not be described in detail here.
[0151] The cleaning device provided in this disclosure senses the current movement state and direction of the cleaning brush head via the sensing wheel assembly 130. When the cleaning brush head moves backward, the scraper assembly moves to a position close to the surface to be cleaned, thus cleaning narrow spaces such as corners as the cleaning device moves backward. When the cleaning device moves forward, since the scraper assembly does not need to perform corner cleaning tasks, it can be in a stored position. When the cleaning device is moving forward or has a forward tendency, the scraper assembly, when it falls, will push the ground debris away from the cleaning device, which is not conducive to cleaning the debris. Therefore, the scraper assembly is also kept in a second stored position. Thus, this disclosure can automatically control the raising and lowering of the scraper assembly based on the movement information of the cleaning device via the sensing wheel assembly 130 to perform scraping action, thereby automatically cleaning narrow spaces such as corners, improving the cleaning performance of the cleaning device, and also enhancing the intelligence and convenience of the cleaning device.
[0152] Other embodiments of this disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this disclosure are indicated by the appended claims.
[0153] It should be understood that this disclosure is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this disclosure is limited only by the appended claims.
Claims
1. A cleaning brush head, comprising: A sensing wheel assembly is disposed on the cleaning brush head and configured to obtain motion information of the cleaning brush head; A floating component configured to perform a floating action based on the motion information, the floating component including a scraper assembly, wherein when the cleaning brush head moves along a first direction, the scraper assembly moves to a first position in a linear motion manner; and when the cleaning brush head moves along a second direction, the scraper assembly moves to a second position in a linear motion manner. The sensing wheel assembly includes: A roller configured to follow the movement of the cleaning brush head; A drive wheel assembly, at least a portion of which rotates synchronously with the roller; A sensing element is configured to sense the rotational state of the transmission wheel assembly and output a signal to the floating assembly.
2. The cleaning brush head as described in claim 1, wherein, The transmission wheel set includes: A drive box, which consists of a first drive wheel and a second drive wheel; The first drive wheel rotates in response to the cleaning brush head having at least a tendency to move. The second transmission wheel meshes with the first transmission wheel and is configured to rotate under the drive of the first transmission wheel; The number of teeth on the first transmission wheel is greater than the number of teeth on the second transmission wheel.
3. The cleaning brush head as described in claim 2, wherein, The drive box also includes: A third transmission wheel is coaxially arranged with the second transmission wheel and rotates synchronously, and the third transmission wheel is configured to be sensed by the sensing element; The diameter of the third transmission wheel is larger than the diameter of the second transmission wheel.
4. The cleaning brush head as described in claim 2, wherein, The gear ratio between the first transmission wheel and the second transmission wheel is 2 to 10.
5. The cleaning brush head as described in claim 3, wherein, The diameter ratio of the third transmission wheel to the second transmission wheel is 2 to 5.
6. The cleaning brush head as described in claim 2, wherein, The second drive wheel rotates in either the forward or reverse direction; In response to the cleaning brush head having a tendency to move at least along the first direction, the second drive wheel rotates in the positive direction, and the sensing element outputs a first signal; In response to the cleaning brush head having a tendency to move at least in the second direction, the second drive wheel rotates in the opposite direction, and the sensing element outputs a second signal.
7. The cleaning brush head as described in claim 6, wherein, The floating component also includes: A drive component configured to drive the scraper assembly to switch between the first position and the second position.
8. The cleaning brush head as described in claim 7, wherein, The driving component is configured to receive the first signal or the second signal; In response to the drive component receiving the first signal, the scraper component moves to a first position; In response to the drive component receiving the second signal, the scraper assembly moves to the second position.
9. The cleaning brush head as described in claim 7, wherein, The scraper assembly includes: A scraper support frame, which is connected to the drive assembly; A scraper body, which is connected to the scraper support frame, is configured to switch between a first position and a second position as the scraper support frame moves.
10. The cleaning brush head as claimed in claim 9, wherein, The scraper support frame and the scraper body each have a guide portion and a guide groove, respectively. The scraper body and the scraper support frame are connected by the guide part and the guide groove.
11. The cleaning brush head as claimed in claim 7, wherein, The floating component further includes a transmission component configured to connect the scraper assembly and the drive assembly. The transmission component includes a moving part and a driving part. The moving part is slidably connected to the body of the cleaning brush head along the axial direction of the roller brush of the cleaning brush head. The moving part is capable of reciprocating along the axial direction of the roller brush under the drive of the drive assembly. The driving part is connected to the moving part and is drively connected to the scraper assembly. The scraper assembly includes: a scraper support frame, a scraper body, and an elastic component. The scraper body is connected to the scraper support frame, and the scraper support frame is connected to the main body of the cleaning brush head via the elastic component. Under the action of the transmission unit, the scraper support frame can compress the elastic component and move the scraper support frame to the first position in a direction perpendicular to the cleaning surface. When the transmission unit removes the force applied to the scraper support frame, the scraper support frame can move to the second position in a direction perpendicular to the cleaning surface under the elastic restoring force of the elastic component.
12. The cleaning brush head as claimed in claim 11, wherein, The scraper support frame is provided with a guide block, and the guide block has an inclined surface that extends along the axial direction of the roller brush and increases in height in a direction perpendicular to the cleaning surface. The transmission unit is provided with a pressure roller. When the transmission unit moves along the axial direction of the roller brush toward the first end of the roller brush, the pressure roller abuts against the inclined surface and can move from the bottom of the inclined surface toward the top of the inclined surface, so that the scraper support frame moves to the first position under the force of the pressure roller. When the transmission unit moves along the axial direction of the roller brush toward the second end of the roller brush, the pressure roller moves from the top of the inclined plane toward the bottom of the inclined plane, so that the scraper support frame moves to the second position under the elastic restoring force of the elastic component.
13. The cleaning brush head as described in any one of claims 9-12, wherein, The scraper assembly also includes: A limiting member is provided at at least one end of the scraper support frame.
14. The cleaning brush head as claimed in claim 13, wherein, The limiting component includes: A limiting buckle is provided at the end of the limiting member.
15. The cleaning brush head as described in any one of claims 9-12, wherein, The driving component includes: Power source; A drive unit connected to the scraper support frame, the drive unit being configured to drive the scraper support frame to move under the drive of the power source.
16. The cleaning brush head as claimed in claim 15, wherein, The drive unit includes: A swing arm, which is configured to rotate under the power source; A limiting baffle is configured to float up and down as the swing arm rotates.
17. The cleaning brush head as claimed in claim 15, wherein, The drive unit includes: A cam, the cam being configured to rotate downwards from the power source; A limiting baffle is configured to float up and down as the cam rotates.
18. The cleaning brush head as claimed in claim 16 or 17, wherein, The drive unit also includes: An elastic element configured to provide a restoring force to the limiting baffle.
19. The cleaning brush head as claimed in claim 16 or 17, wherein, The drive unit also includes: A guide rod, configured to connect the limiting baffle and the scraper support frame.
20. The cleaning brush head as claimed in claim 17, wherein, The scraper body switches between the first position and the second position in a generally vertical direction.
21. The cleaning brush head as claimed in claim 15, wherein, The drive unit includes: A gear set connected to the scraper support frame, the gear set being configured to drive the scraper support frame to rotate under the drive of the power source.
22. The cleaning brush head as claimed in claim 21, wherein, The scraper body rotates within a preset angle.
23. The cleaning brush head as described in claim 2, wherein, The sensing element includes at least one of the following: stress sensor, TOF component, line laser component, radar component, IMU, encoder, Hall sensor.
24. The cleaning brush head as claimed in claim 1, wherein, The cleaning brush head also includes: A switching element configured to manually control whether the floating component performs a floating action based on the motion information.
25. A cleaning device comprising a cleaning brush head as described in any one of claims 1-24.