Rolling brush assembly and cleaning device

Abstract

The present application relates to the technical field of cleaning equipment, and discloses a rolling brush assembly and a cleaning equipment, which comprise: a rolling brush body provided with a fixed cleaning part, the rolling brush body being provided with a mounting through hole; a telescopic assembly comprising a telescopic cleaning part, the telescopic cleaning part being adapted to extend out or retract through the mounting through hole; an elastic part being arranged between the telescopic assembly and the rolling brush body; a transmission part, one of the transmission part and the rolling brush body being provided with a detection block, the other of the transmission part and the rolling brush body being provided with a position detection sensor, the position detection sensor being capable of detecting a distance signal between the detection block and the position detection sensor, the transmission part being capable of driving the telescopic assembly to extend or retract; a driving assembly being connected with the transmission part and being used for driving the transmission part to rotate; and a main control structure being capable of controlling the driving force of the driving assembly according to the distance signal detected by the position detection sensor, so as to adjust the rotating speed of the transmission part, so that the telescopic cleaning part extends out to a length corresponding to the distance signal detected by the position detection sensor.

Description

Technical Field

[0001] This invention relates to the field of cleaning equipment technology, and more specifically to roller brush assemblies and cleaning equipment. Background Technology

[0002] A mite remover is a small household appliance that removes mites, vacuums, and sterilizes. It can effectively clean dust from furniture such as beds and sofas and has gained widespread user acceptance. The core working principle of a mite remover is "beating, vacuuming, and sterilization." The beating function is achieved through a roller brush, and the extension of the rubber strips and bristles on the roller brush affects the beating effect on the cleaning surface.

[0003] The beating strips of the roller brush are fixed to the brush rod, with a fixed extension. When the mite remover cleans different surfaces, because the extension is fixed (i.e., the roller brush diameter is fixed), while the softness of the cleaning surface varies, the amount of sinking occurs differently when the mite remover operates on different materials. This results in different interference fits between the beating strips and the cleaning surface, and consequently, different beating effects. For example, when cleaning soft blankets, the beating strips have a larger interference fit and stronger beating force, while when cleaning hard surfaces such as sofas and mattresses, the interference fit between the beating strips and the cleaning surface is smaller, resulting in poorer beating effects. Summary of the Invention

[0004] In view of this, the present invention provides a roller brush assembly and a cleaning device to solve the problem of unstable patting force when cleaning different cleaning surfaces.

[0005] In a first aspect, the present invention provides a roller brush assembly, comprising:

[0006] The roller brush body is equipped with a fixed cleaning component, and the roller brush body is provided with a mounting through hole;

[0007] A telescopic assembly, including a telescopic cleaning element adapted to extend or retract through the mounting through-hole;

[0008] An elastic element is disposed between the telescopic assembly and the brush body;

[0009] A transmission component is at least partially disposed within the roller brush body. One of the transmission component and the roller brush body is provided with a detection block, and the other of the transmission component and the roller brush body is provided with a position detection sensor. The position detection sensor can detect the distance signal between itself and the detection block, and the transmission component can drive the telescopic assembly to extend and retract.

[0010] A drive assembly, connected to the transmission component, is used to drive the transmission component to rotate;

[0011] The main control structure is communicatively connected to the drive component and the position detection sensor. It can control and adjust the driving force of the drive component according to the distance signal detected by the position detection sensor, thereby adjusting the rotation speed of the transmission component so that the telescopic cleaning component extends to a length corresponding to the distance signal detected by the position detection sensor.

[0012] Beneficial effects: The drive component is connected to the transmission component to drive the transmission component to rotate. The transmission component drives the roller brush body to rotate through the elastic component and the telescopic component. The fixed cleaning component outside the roller brush body contacts the cleaning surface for cleaning. When the cleaning surface changes, causing a sudden change in the friction force on the fixed cleaning component, the roller brush body and the transmission component will rotate relative to each other. This causes the position detection sensor to detect a change in the distance signal between itself and the detection block. At this time, the main control structure controls and adjusts the driving force of the drive component, thereby adjusting the rotation speed of the transmission component so that the telescopic cleaning component extends to a length corresponding to the distance signal detected by the position detection sensor. This achieves stable patting force, uniform cleaning, and good cleaning effect on cleaning surfaces with different materials and friction forces.

[0013] In one alternative embodiment, the telescopic assembly includes a sliding rod, the telescopic cleaning element is disposed on the sliding rod, and the transmission element is capable of driving the sliding rod to slide, thereby causing the telescopic cleaning element to extend or retract.

[0014] Beneficial effects: The telescopic cleaning component is located on the sliding rod, and the transmission component can drive the sliding rod to slide, thereby causing the telescopic cleaning component to extend and retract, which facilitates the extension and retraction of the telescopic cleaning component.

[0015] In one optional embodiment, the roller brush body is provided with a sliding rod mounting groove, and the sliding rod is slidably disposed in the sliding rod mounting groove.

[0016] Beneficial effects: By setting a sliding rod mounting groove on the main body of the roller brush, the sliding of the sliding rod can be guided and limited, and the installation of the sliding rod can be facilitated.

[0017] In one optional embodiment, the roller brush body is provided with a sliding rod retraction limiting rib, and when the telescopic cleaning component retracts to its shortest extension length, the sliding rod abuts against the sliding rod retraction limiting rib.

[0018] Beneficial effect: By providing a sliding rod retraction limiting rib on the main body of the roller brush, when the telescopic cleaning component retracts to its shortest extension length, the sliding rod abuts against the sliding rod retraction limiting rib, which can limit the position of the sliding rod when the telescopic cleaning component retracts to its shortest extension length, thereby preventing the telescopic cleaning component from retracting excessively.

[0019] In one optional embodiment, the sliding rod includes a horizontal plate and a vertical plate arranged in a T-shape, with at least the vertical plate disposed in the sliding rod mounting groove. The telescopic cleaning component is disposed on the side of the horizontal plate away from the vertical plate. When the telescopic cleaning component retracts to its shortest extension length, the side of the horizontal plate facing the vertical plate abuts against the sliding rod retraction limiting rib.

[0020] Beneficial effects: When the telescopic cleaning component retracts to its shortest extension length, the side of the horizontal plate facing the vertical plate abuts against the sliding rod retraction limit rib, limiting the position of the sliding rod and thus preventing the telescopic cleaning component from retracting excessively. In addition, the telescopic cleaning component is located on the side of the horizontal plate away from the vertical plate, which can increase the connection area between the telescopic cleaning component and the sliding rod, ensuring a stable connection between the two.

[0021] In one optional embodiment, the roller brush body is provided with a movable cavity, the movable cavity is connected to the mounting through hole, and at least part of the telescopic cleaning component is disposed in the movable cavity and can move in the movable cavity.

[0022] Beneficial effects: By setting up a movable cavity, space can be provided for the telescopic cleaning component to extend and retract, thus preventing deformation of the telescopic cleaning component.

[0023] In one optional embodiment, the sliding rod retraction limiting rib is located at the end of the movable cavity away from the mounting through hole;

[0024] And / or, at least one side of the active cavity is provided with a guide rib, and the telescopic cleaning member is adapted to extend and retract along the guide rib.

[0025] Beneficial effects: The sliding rod retraction limiting rib is located at the end of the movable cavity away from the mounting through hole, resulting in a compact structural layout that reduces the space occupied within the roller brush body. By providing guide ribs on at least one side of the movable cavity, the extension and retraction of the telescopic cleaning component can be guided.

[0026] In one alternative embodiment, the sliding rod is provided with a clamping groove, and the telescopic cleaning component is clamped in the clamping groove.

[0027] Beneficial effects: The sliding rod is equipped with a clamping groove, in which the telescopic cleaning component is clamped, which facilitates the connection between the telescopic cleaning component and the sliding rod, improves assembly efficiency, and makes it easier to install and replace the telescopic cleaning component.

[0028] In one alternative embodiment, the elastic element is disposed between the telescopic cleaning element and the roller brush body.

[0029] Beneficial effects: The elastic element is located between the telescopic cleaning component and the roller brush body. The elastic force of the elastic element acts directly on the telescopic cleaning component, which can make the telescopic cleaning component retract quickly when the driving force of the transmission component is lost.

[0030] In one optional embodiment, the roller brush body is provided with a first spring limiting part, the telescopic cleaning member is provided with a second spring limiting part, one end of the elastic member is provided at the first spring limiting part, and the other end of the elastic member is provided at the second spring limiting part.

[0031] Beneficial effects: By providing a first spring limiting part in the main body of the roller brush and a second spring limiting part in the telescopic cleaning component, it is convenient to position and install the elastic component.

[0032] In one alternative embodiment, the telescopic cleaning member is L-shaped and includes a connecting portion and a cleaning portion. The cleaning portion is adapted to extend or retract through the mounting through hole. The connecting portion is disposed on the sliding rod and is provided with a second spring limiting portion.

[0033] Beneficial effects: The telescopic cleaning component includes a connecting part and a cleaning part. The cleaning part is suitable for extending or retracting through the mounting through hole. The connecting part is located on the sliding rod and is provided with a second spring limiting part, which can increase the connection area between the telescopic cleaning component and the sliding rod, and at the same time facilitates the setting of the second spring limiting part.

[0034] In one optional embodiment, the roller brush body is provided with a detection block mounting groove, and the detection block is disposed in the detection block mounting groove.

[0035] Beneficial effect: By setting the detection block mounting groove in the main body of the roller brush, it is convenient to position and install the detection block.

[0036] In one optional embodiment, the center of the roller brush body is provided with a first mating part, and the center of the transmission member is provided with a second mating part, wherein the first mating part and the second mating part are rotatably mated.

[0037] Beneficial effect: By setting a first mating part at the center of the roller brush body and a second mating part at the center of the transmission component, the position of the transmission component can be positioned by rotating the first mating part and the second mating part.

[0038] In one alternative embodiment, the transmission member includes a central rod and a pusher plate disposed on the central rod, the pusher plate being used to push the telescopic assembly to extend or retract.

[0039] Beneficial effects: The transmission component includes a central rod and a push plate on the central rod. The push plate can directly act on the telescopic component. When the transmission component rotates under the drive of the drive component, the push plate acts on the telescopic component, thereby driving the telescopic component to extend and retract. The structure is simple and does not require the assistance of other drive structures and transmission structures.

[0040] In one optional embodiment, the transmission component further includes a cover plate disposed at one end of the central rod, the cover plate being adapted to close one end of the roller brush body, and the position detection sensor being disposed on the cover plate.

[0041] Beneficial effects: By setting a cover plate, one end of the roller brush body is closed, making the appearance more compact and beautiful. The position sensor is set on the cover plate, which facilitates the electrical connection between the position sensor and the main control structure.

[0042] In one optional embodiment, the cover plate is provided with a position detection sensor mounting slot, and the position detection sensor is located in the position detection sensor mounting slot.

[0043] Beneficial effect: By setting a mounting slot for the position detection sensor in the cover plate, it is convenient to position and install the position detection sensor.

[0044] In one optional embodiment, the cover plate is further provided with a retractable striker mounting groove, the retractable striker of the position detection sensor is limited to the retractable striker mounting groove, the groove wall of the retractable striker mounting groove is provided with a mounting hole penetrating the cover plate, and the retractable striker of the position detection sensor is adapted to extend and retract through the mounting hole;

[0045] The roller brush assembly also includes a conductive element, the retractable striker of the position detection sensor is in contact with the conductive element, and the conductive element is electrically connected to the main control structure.

[0046] Beneficial effects: By setting a retractable striker mounting slot in the cover plate, it is convenient to position and install the retractable striker of the position detection sensor. By providing a mounting hole through the cover plate in the groove wall of the retractable striker mounting slot, when the transmission component rotates under the drive of the drive assembly, the retractable striker of the position detection sensor can extend and retract through the mounting hole, which facilitates the smooth rotation of the position detection sensor relative to the conductive component.

[0047] In one optional embodiment, the cover plate is further provided with a rotation angle limiting block, the roller brush body is provided with a limiting groove, the rotation angle limiting block is rotatably disposed in the limiting groove, and the limiting groove is used to limit the rotation angle of the rotation angle limiting block.

[0048] Beneficial effects: By setting a rotation angle limiting block on the cover plate and a limiting groove on the roller brush body, the rotation angle limiting block can be rotatably set in the limiting groove, thereby limiting the rotation angle of the rotation angle limiting block and thus limiting the relative rotation angle between the roller brush body and the transmission component.

[0049] In one optional embodiment, the drive assembly includes a drive structure and a rotating rod, the drive structure being used to drive the rotating rod to rotate, and the rotating rod being inserted into the transmission component.

[0050] Beneficial effects: The drive assembly includes a drive structure and a rotating rod. The rotating rod is plugged into the transmission component. Under the premise that the rotating rod can drive the transmission component to rotate synchronously, the assembly efficiency of the rotating rod and the transmission component can be improved.

[0051] Secondly, the present invention also provides a cleaning device, comprising:

[0052] The bottom shell is equipped with a roller brush movable chamber;

[0053] The roller brush assembly has the roller brush body rotatably disposed in the roller brush movable cavity, and the drive assembly disposed in the bottom shell.

[0054] Beneficial effects: In this cleaning device, the fixed cleaning component outside the roller brush body contacts the cleaning surface for cleaning. When the cleaning surface changes, causing a sudden change in the friction force on the fixed cleaning component, the roller brush body and the transmission component will rotate relative to each other. This causes the position detection sensor to detect a change in the distance signal between itself and the detection block. At this time, the main control structure controls and adjusts the driving force of the drive component, thereby adjusting the rotation speed of the transmission component so that the telescopic cleaning component extends to a length corresponding to the distance signal detected by the position detection sensor. This achieves a stable patting force, uniform cleaning, and good cleaning effect on cleaning surfaces with different materials and friction forces. Attached Figure Description

[0055] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0056] Figure 1 Five views of a roller brush assembly according to an embodiment of the present invention;

[0057] Figure 2 This is an exploded view of a roller brush assembly according to an embodiment of the present invention;

[0058] Figure 3 for Figure 2 A magnified view of part A in the diagram;

[0059] Figure 4 This is a front sectional view of a roller brush assembly according to an embodiment of the present invention when cleaning a surface with low frictional resistance;

[0060] Figure 5 for Figure 4 AA cross-section view;

[0061] Figure 6 for Figure 4 BB cross-section;

[0062] Figure 7 This is a front sectional view of a roller brush assembly according to an embodiment of the present invention when the frictional resistance of the cleaning surface suddenly increases during cleaning.

[0063] Figure 8 for Figure 7 AA cross-section view;

[0064] Figure 9 for Figure 7 BB cross-section;

[0065] Figure 10 This is a front sectional view of a roller brush assembly according to an embodiment of the present invention, showing the main control structure changing the driving force based on the received distance signal after a sudden increase in the frictional resistance of the cleaning surface.

[0066] Figure 11 for Figure 10 AA cross-section view;

[0067] Figure 12 for Figure 10 BB cross-section;

[0068] Figure 13 This is a perspective cross-sectional view of a roller brush assembly according to an embodiment of the present invention when cleaning a surface with low frictional resistance;

[0069] Figure 14 This is a perspective cross-sectional view of a roller brush assembly according to an embodiment of the present invention when the frictional resistance of the cleaning surface suddenly increases during cleaning.

[0070] Figure 15 A three-dimensional cross-sectional view of a roller brush assembly according to an embodiment of the present invention, showing the main control structure changing the driving force based on the received distance signal after a sudden increase in the frictional resistance of the cleaning surface.

[0071] Figure 16 This is a perspective sectional view of a roller brush assembly according to an embodiment of the present invention when cleaning a surface with low frictional resistance, with the transmission component removed.

[0072] Figure 17 A perspective sectional view of a roller brush assembly according to an embodiment of the present invention, when the frictional resistance of the cleaning surface suddenly increases during cleaning, with the transmission component removed.

[0073] Figure 18 A three-dimensional sectional view of a roller brush assembly according to an embodiment of the present invention, wherein the main control structure controls the change of driving force according to the received distance signal after the frictional resistance of the cleaning surface suddenly increases, and the transmission component is removed.

[0074] Figure 19 This is a front sectional view of the main body of the roller brush;

[0075] Figure 20 Left view of the main body of the roller brush;

[0076] Figure 21 This is the right view of the main body of the roller brush;

[0077] Figure 22 Schematic diagram of the main body of the roller brush Figure 1 ;

[0078] Figure 23 Schematic diagram of the main body of the roller brush Figure 2 ;

[0079] Figure 24 Schematic diagram of the main body of the roller brush Figure 3 ;

[0080] Figure 25 This is a schematic diagram of the transmission components;

[0081] Figure 26 This is the left view of the transmission component;

[0082] Figure 27 This is a schematic diagram of a cleaning device according to an embodiment of the present invention;

[0083] Figure 28 This is a schematic diagram of a cleaning device according to an embodiment of the present invention when the roller brush assembly is not installed on the bottom shell;

[0084] Figure 29 This is a partial cross-sectional view of a cleaning device according to an embodiment of the present invention.

[0085] Explanation of reference numerals in the attached figures:

[0086] 1. End cap; 2. Roller brush bearing; 3. Roller brush body; 3a. Fixed cleaning component mounting groove; 3b. Sliding rod mounting groove; 3c. Sliding rod retraction limiting rib; 3d. Movable cavity; 3e. Mounting through hole; 3f. First spring limiting part; 3g. Detection block mounting groove; 3h. Guide rib; 3i. First mating part; 3j. End cap guide platform; 3k. Bearing mounting boss; 3m. Limiting groove; 4. Fixed cleaning component; 5. Telescopic cleaning component; 5a. Connecting part; 5b. Cleaning part; 5c. Second spring limiting part; 6. Sliding rod; 6a. Horizontal plate; 6b. Vertical plate; 6c. Clamping groove; 7. Elastic component 8. Position detection sensor; 9. Detection block; 10. Transmission component; 10a. Center rod; 10b. Push plate; 10c. Second mating part; 10d. Cover plate; 10e. Position detection sensor mounting slot; 10f. Telescopic striker mounting slot; 10g. Mounting hole; 10h. Conductive component shielding ring; 10i. Rotation angle limiting block; 10j. Rotating rod mounting slot; 11. Rotating rod; 12. Conductive component; 13. Mounting bracket; 14. Transmission bearing; 15. Driven wheel; 16. Drive wheel; 17. Belt; 18. Motor; 19. Bottom shell; 20. Main control structure; 21. Cleaning surface. Detailed Implementation

[0087] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0088] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0089] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0090] Furthermore, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0091] A mite remover is a small household appliance that removes mites, vacuums, and sterilizes. It can effectively clean dust from furniture such as beds and sofas and has gained widespread user acceptance. The core working principle of a mite remover is "beating, vacuuming, and sterilization." The beating function is achieved through a roller brush, and the extension of the rubber strips and bristles on the roller brush affects the beating effect on the cleaning surface.

[0092] The beating strips of the roller brush are fixed to the brush rod, with a fixed extension. When the mite remover cleans different surfaces, because the extension is fixed (i.e., the roller brush diameter is fixed), while the softness of the cleaning surface varies, the amount of sinking occurs differently when the mite remover operates on different materials. This results in different interference fits between the beating strips and the cleaning surface, and consequently, different beating effects. For example, when cleaning soft blankets, the beating strips have a larger interference fit and stronger beating force, while when cleaning hard surfaces such as sofas and mattresses, the interference fit between the beating strips and the cleaning surface is smaller, resulting in poorer beating effects.

[0093] Related technology discloses a floor brush structure and a vacuuming device. The floor brush structure includes a roller brush with a first cleaning element on its outer wall; a second cleaning element movably disposed within the roller brush; and an adjustment assembly disposed within the roller brush and convexly connected to the second cleaning element. The adjustment assembly is capable of driving the second cleaning element to extend and retract relative to the first cleaning element, with the height of the second cleaning element extending beyond the roller brush greater than the height of the first cleaning element. The adjustment assembly includes a cam that abuts against the second cleaning element and is rotatable to move the second cleaning element between a first position and a second position; and a first drive member convexly connected to the cam and capable of driving the cam to rotate.

[0094] The aforementioned technologies require a first driving component to drive the cam to rotate, and the rotation of the cam to drive the extension and retraction of the second cleaning component, resulting in a complex structure and a large number of parts.

[0095] The following is combined with Figures 1 to 29 The following describes embodiments of the present invention.

[0096] According to an embodiment of the present invention, in one aspect, a roller brush assembly is provided, including a roller brush body 3, a telescopic assembly, an elastic element 7, a transmission element 10, and a drive assembly.

[0097] The roller brush body 3 includes a fixed cleaning component 4 and a mounting through hole 3e. The telescopic assembly includes a telescopic cleaning component 5, which is adapted to extend or retract through the mounting through hole 3e. An elastic component 7 is located between the telescopic assembly and the roller brush body 3. At least a portion of the transmission component 10 is located within the roller brush body 3. One of the transmission component 10 and the roller brush body 3 is equipped with a detection block 9, and the other is equipped with a position detection sensor 8. The position detection sensor 8 can detect the distance signal between itself and the detection block 9. The transmission component 10 can drive the telescopic assembly to extend or retract. A drive component is connected to the transmission component 10 and is used to drive the transmission component 10 to rotate. The main control structure 20 is communicatively connected to the drive component and the position detection sensor 8, and can control and adjust the driving force of the drive component according to the distance signal detected by the position detection sensor 8, thereby adjusting the rotational speed of the transmission component 10 so that the telescopic cleaning component 5 extends to a length corresponding to the distance signal detected by the position detection sensor 8.

[0098] In this embodiment, the drive component is connected to the transmission component 10 and is used to drive the transmission component 10 to rotate. The transmission component 10 drives the roller brush body 3 to rotate through the elastic component 7 and the telescopic component. The fixed cleaning component 4 outside the roller brush body 3 contacts the cleaning surface 21 for cleaning. When the cleaning surface 21 changes, causing a sudden change in the friction force on the fixed cleaning component 4, the roller brush body 3 and the transmission component 10 will rotate relative to each other. This causes the position detection sensor 8 to detect a change in the distance signal between itself and the detection block 9. At this time, the main control structure 20 controls and adjusts the driving force of the drive component, thereby adjusting the rotation speed of the transmission component 10 so that the telescopic cleaning component 5 extends to a length corresponding to the distance signal detected by the position detection sensor 8. This achieves a stable patting force, uniform cleaning, and good cleaning effect on the cleaning surface 21 with different materials and friction forces.

[0099] It should be noted that the roller brush body 3 has an initial resistance when idling. By studying the resistance at different contact depths on the cleaning surface 21, it was determined that the main control structure 20 corresponds to different signal range values ​​for the resistance magnitudes on various cleaning surfaces 21. When the roller brush body 3 is idling, the resistance is small, and the telescopic cleaning component 5 will not extend or will extend only a short length. When there are many contact surfaces and the resistance is too high, it will cause the roller brush body 3 to rotate relative to the transmission component 10, causing the telescopic cleaning component 5 to extend. At this time, the distance signal detected by the position detection sensor 8 changes, and the main control structure 20 controls the change of driving force to make the extension length of the telescopic cleaning component 5 eventually balance, and to ensure that the distance signal received by the main control structure 20 is within the signal range value corresponding to the resistance.

[0100] Specifically in one embodiment, such as Figures 4 to 6 As shown, when cleaning the cleaning surface 21 with low frictional resistance, the fixed cleaning component 4 contacts the cleaning surface 21, resulting in a small contact area between the fixed cleaning component 4 and the cleaning surface 21. The telescopic cleaning component 5 does not contact the cleaning surface 21. When the cleaning surface 21 remains unchanged, the distance signal detected by the position sensor does not change. Figures 7 to 9 As shown, when the frictional resistance of the cleaning surface 21 suddenly increases, the contact area between the fixed cleaning component 4 and the cleaning surface 21 increases, causing the rotational speed of the roller brush body 3 to decrease instantaneously, while the driving force remains unchanged. This results in the transmission component 10 rotating relative to the roller brush body 3. The transmission component 10 drives the telescopic cleaning component 5 to extend over the resistance of the elastic component 7, reducing the distance between the detection block 9 and the position detection sensor 8. The distance signal detected by the detection block 9 decreases, transmitting a signal to the main control structure 20. Figures 10 to 12 As shown, the main control structure 20 controls the change of driving force according to the received distance signal, causing the elastic element 7 to drive the telescopic cleaning element 5 to retract to achieve a state of resistance balance, thus balancing the patting resistance.

[0101] Combination Figure 8 and Figure 11 The main body of the roller brush 3 rotates clockwise. Figure 8 and Figure 11 The horizontal arrow pointing to the right indicates the direction of resistance experienced by the fixed cleaning component 4.

[0102] In one specific embodiment, the main body 3 of the roller brush is provided with a fixed cleaning component mounting groove 3a, and the fixed cleaning component 4 is installed in the fixed cleaning component mounting groove 3a.

[0103] In one specific embodiment, the fixed cleaning component 4 is a tapping strip that extends along the length of the roller brush body 3.

[0104] In one specific embodiment, the telescopic cleaning element 5 is a tapping strip that extends along the length of the roller brush body 3.

[0105] In one embodiment, the telescopic assembly includes a sliding rod 6, a telescopic cleaning component 5 is disposed on the sliding rod 6, and a transmission component 10 can drive the sliding rod 6 to slide, thereby causing the telescopic cleaning component 5 to extend or retract.

[0106] In this embodiment, the telescopic cleaning component 5 is disposed on the sliding rod 6, and the transmission component 10 can drive the sliding rod 6 to slide, thereby causing the telescopic cleaning component 5 to extend and retract, which facilitates the extension and retraction of the telescopic cleaning component 5.

[0107] It should be noted that the telescopic cleaning component 5 has a certain degree of flexibility. If the transmission component 10 directly drives the telescopic cleaning component 5 to extend or retract, the component may easily deform, making it difficult to extend or retract. Therefore, a sliding rod 6 is provided. The rigidity of the sliding rod 6 is greater than that of the telescopic cleaning component 5, making it easier to drive the sliding rod 6 to slide and thus drive the telescopic cleaning component 5 to extend or retract. Of course, if the telescopic cleaning component 5 is not easily deformable, the transmission component 10 can directly drive the telescopic cleaning component 5 to extend or retract.

[0108] In one embodiment, the roller brush body 3 is provided with a sliding rod mounting groove 3b, and the sliding rod 6 is slidably disposed in the sliding rod mounting groove 3b.

[0109] In this embodiment, by providing a sliding rod mounting groove 3b on the roller brush body 3, the sliding of the sliding rod 6 can be guided and limited, and the installation of the sliding rod 6 can be facilitated.

[0110] In one embodiment, the roller brush body 3 is provided with a sliding rod retraction limiting rib 3c. When the telescopic cleaning component 5 retracts to its shortest extension length, the sliding rod 6 abuts against the sliding rod retraction limiting rib 3c.

[0111] In this embodiment, by providing a sliding rod retraction limiting rib 3c on the roller brush body 3, when the telescopic cleaning component 5 retracts to its shortest extension length, the sliding rod 6 abuts against the sliding rod retraction limiting rib 3c, which can limit the position of the sliding rod 6 when the telescopic cleaning component 5 retracts to its shortest extension length, thereby preventing the telescopic cleaning component 5 from retracting excessively.

[0112] In one specific embodiment, the sliding rod retraction limiting rib 3c is provided at one end of the sliding rod mounting groove 3b.

[0113] In one embodiment, the sliding rod 6 includes a horizontal plate 6a and a vertical plate 6b arranged in a T-shape. At least the vertical plate 6b is disposed in the sliding rod mounting groove 3b. The telescopic cleaning member 5 is disposed on the side of the horizontal plate 6a away from the vertical plate 6b. When the telescopic cleaning member 5 is retracted to its shortest extension length, the side of the horizontal plate 6a facing the vertical plate 6b abuts against the sliding rod retraction limiting rib 3c.

[0114] In this embodiment, when the telescopic cleaning component 5 retracts to its shortest extension length, the side of the horizontal plate 6a facing the vertical plate 6b abuts against the sliding rod retraction limiting rib 3c, limiting the position of the sliding rod 6, thereby preventing the telescopic cleaning component 5 from retracting excessively. In addition, the telescopic cleaning component 5 is located on the side of the horizontal plate 6a away from the vertical plate 6b, which can increase the connection area between the telescopic cleaning component 5 and the sliding rod 6, ensuring a stable connection between the two.

[0115] In one embodiment, the roller brush body 3 is provided with a movable cavity 3d, which is connected to the mounting through hole 3e. At least part of the telescopic cleaning member 5 is provided in the movable cavity 3d and can move in the movable cavity 3d.

[0116] In this embodiment, by providing the movable cavity 3d, the telescopic cleaning component 5 can be provided with a space for telescopic movement, thus preventing deformation of the telescopic cleaning component 5.

[0117] In one embodiment, the sliding rod retraction limiting rib 3c is located at the end of the movable cavity 3d away from the mounting through hole 3e; and / or, at least one side of the movable cavity 3d is provided with a guide rib 3h, and the telescopic cleaning member 5 is adapted to telescopically extend and retract along the guide rib 3h.

[0118] In this embodiment, the sliding rod retraction limiting rib 3c is located at the end of the movable cavity 3d away from the mounting through hole 3e, resulting in a compact structural layout that reduces the space occupied within the roller brush body 3. By providing guide ribs 3h on at least one side of the movable cavity 3d, the guide ribs 3h can guide the extension and retraction of the telescopic cleaning component 5.

[0119] Specifically, part of the sliding rod 6 can move within the movable cavity 3d along with the telescopic cleaning component 5.

[0120] In one embodiment, the sliding rod 6 is provided with a clamping groove 6c, and the telescopic cleaning member 5 is clamped in the clamping groove 6c.

[0121] In this embodiment, the sliding rod 6 is provided with a clamping groove 6c, and the telescopic cleaning component 5 is clamped in the clamping groove 6c, which facilitates the connection between the telescopic cleaning component 5 and the sliding rod 6, improves assembly efficiency, and facilitates the installation and replacement of the telescopic cleaning component 5.

[0122] In one specific embodiment, the sliding rod 6 includes a horizontal plate 6a and a vertical plate 6b arranged in a T-shape, and a clamping groove 6c is provided on the horizontal plate 6a.

[0123] In one embodiment, the elastic element 7 is disposed between the telescopic cleaning element 5 and the roller brush body 3.

[0124] In this embodiment, the elastic element 7 is disposed between the telescopic cleaning element 5 and the roller brush body 3. The elastic force of the elastic element 7 acts directly on the telescopic cleaning element 5, which can cause the telescopic cleaning element 5 to retract quickly when the push of the transmission element 10 is lost.

[0125] In one embodiment, the roller brush body 3 is provided with a first spring limiting part 3f, the telescopic cleaning member 5 is provided with a second spring limiting part 5c, one end of the elastic member 7 is provided at the first spring limiting part 3f, and the other end of the elastic member 7 is provided at the second spring limiting part 5c.

[0126] In this embodiment, by providing a first spring limiting part 3f for the roller brush body 3 and a second spring limiting part 5c for the telescopic cleaning member 5, it is convenient to position and install the elastic member 7.

[0127] Specifically in one embodiment, such as Figure 22 and Figure 23The first spring limiting part 3f is a protruding part, such as Figure 3 The second spring limiting part 5c is a protruding part.

[0128] In an alternative embodiment, the first spring limiting portion 3f and / or the second spring limiting portion 5c may be a groove.

[0129] In one embodiment, the telescopic cleaning member 5 is L-shaped and includes a connecting portion 5a and a cleaning portion 5b. The cleaning portion 5b is adapted to extend or retract through the mounting through hole 3e, and the connecting portion 5a is provided with a second spring limiting portion 5c.

[0130] In this embodiment, the telescopic cleaning member 5 includes a connecting part 5a and a cleaning part 5b. The cleaning part 5b is adapted to extend or retract through the mounting through hole 3e. The connecting part 5a is provided on the sliding rod 6. The connecting part 5a is provided with a second spring limiting part 5c, which can increase the connection area between the telescopic cleaning member 5 and the sliding rod 6, and at the same time facilitates the setting of the second spring limiting part 5c.

[0131] In one specific embodiment, the connecting part 5a is provided with a plurality of second spring limiting parts 5c, and a plurality of elastic members 7 are evenly provided between a telescopic cleaning member 5 and the roller brush body 3, so that the telescopic cleaning member 5 can be evenly stressed.

[0132] Specific combination Figure 2 and Figure 3 Multiple second spring limiting parts 5c are evenly arranged along the length direction of the connecting part 5a.

[0133] In one embodiment, the roller brush body 3 is provided with a detection block mounting groove 3g, and the detection block 9 is disposed in the detection block mounting groove 3g.

[0134] In this embodiment, by providing a detection block mounting groove 3g in the roller brush body 3, the positioning and installation of the detection block 9 is facilitated.

[0135] In one embodiment, the center of the roller brush body 3 is provided with a first mating part 3i, and the center of the transmission member 10 is provided with a second mating part 10c. The first mating part 3i and the second mating part 10c are rotatably mated.

[0136] In this embodiment, by providing a first mating part 3i at the center of the roller brush body 3 and a second mating part 10c at the center of the transmission member 10, the position of the transmission member 10 can be positioned by rotating the first mating part 3i and the second mating part 10c together.

[0137] In one specific embodiment, the first mating part 3i is one of the central post and the central hole, and the second mating part 10c is the other of the central post and the central hole. The central hole surrounds the central post, so as to realize the rotational mating between the central post and the central hole.

[0138] In one embodiment, the transmission member 10 includes a central rod 10a and a pusher plate 10b disposed on the central rod 10a, the pusher plate 10b being used to push the telescopic assembly to extend or retract.

[0139] In this embodiment, the transmission component 10 includes a central rod 10a and a pusher plate 10b disposed on the central rod 10a. The pusher plate 10b can directly act on the telescopic component. When the transmission component 10 rotates under the drive of the drive component, the pusher plate 10b acts on the telescopic component to drive the telescopic component to extend and retract. The structure is simple and does not require the use of other drive structures and transmission structures.

[0140] In a preferred embodiment, the push plate 10b is tangent to the center rod 10a.

[0141] In one specific embodiment, two push plates 10b are provided, and correspondingly, two telescopic cleaning members 5 are provided.

[0142] In one embodiment, the transmission member 10 further includes a cover plate 10d disposed at one end of the central rod 10a, the cover plate 10d being adapted to close one end of the roller brush body 3, and the position detection sensor 8 being disposed on the cover plate 10d.

[0143] In this embodiment, by setting a cover plate 10d, which closes one end of the roller brush body 3, the appearance is more compact and beautiful. The position sensor is set on the cover plate 10d, which facilitates the electrical connection between the position sensor and the main control structure 20.

[0144] In one embodiment, the cover plate 10d is provided with a position detection sensor mounting slot 10e, and the position detection sensor 8 is located in the position detection sensor mounting slot 10e.

[0145] In this embodiment, the position detection sensor 8 is positioned and installed by providing a position detection sensor mounting slot 10e in the cover plate 10d.

[0146] In one embodiment, the cover plate 10d is further provided with a retractable striker mounting groove 10f, the retractable striker of the position detection sensor 8 is limited to the retractable striker mounting groove 10f, the groove wall of the retractable striker mounting groove 10f is provided with a mounting hole 10g penetrating the cover plate 10d, the retractable striker of the position detection sensor 8 is adapted to extend and retract through the mounting hole 10g, the roller brush assembly also includes a conductive element 12, the retractable striker of the position detection sensor 8 is kept in contact with the conductive element 12, and the conductive element 12 is electrically connected to the main control structure 20.

[0147] In this embodiment, a retractable striker mounting groove 10f is provided on the cover plate 10d to facilitate the positioning and installation of the retractable striker of the position detection sensor 8. A mounting hole 10g penetrating the cover plate 10d is provided in the groove wall of the retractable striker mounting groove 10f. When the transmission component 10 rotates under the drive of the drive component, the retractable striker of the position detection sensor 8 can extend and retract through the mounting hole 10g, which facilitates the smooth rotation of the position detection sensor 8 relative to the conductive component 12.

[0148] In one specific embodiment, the conductive element 12 is annular, so that when the transmission element 10 rotates under the drive of the drive assembly, the retractable striker of the position detection sensor 8 can remain in contact with the conductive element 12.

[0149] In one specific embodiment, the cover plate 10d is provided with a conductive shielding ring 10h.

[0150] In one embodiment, the cover plate 10d is further provided with a rotation angle limiting block 10i, and the roller brush body 3 is provided with a limiting groove 3m. The rotation angle limiting block 10i is rotatably disposed in the limiting groove 3m, and the limiting groove 3m is used to limit the rotation angle of the rotation angle limiting block 10i.

[0151] In this embodiment, by setting a rotation angle limiting block 10i on the cover plate 10d and a limiting groove 3m on the roller brush body 3, the rotation angle limiting block 10i is rotatably set in the limiting groove 3m, which can limit the rotation angle of the rotation angle limiting block 10i, thereby limiting the relative rotation angle between the roller brush body 3 and the transmission component 10.

[0152] In one embodiment, the drive assembly includes a drive structure and a rotating rod 11. The drive structure is used to drive the rotating rod 11 to rotate, and the rotating rod 11 is inserted into the transmission component 10.

[0153] In this embodiment, the drive assembly includes a drive structure and a rotating rod 11. The rotating rod 11 is plugged into the transmission component 10. Under the premise that the rotating rod 11 can drive the transmission component 10 to rotate synchronously, the assembly efficiency of the rotating rod 11 and the transmission component 10 can be improved.

[0154] Specifically, the cover plate 10d is provided with a rotating rod mounting groove 10j, and the rotating rod 11 is embedded in the rotating rod mounting groove 10j.

[0155] Preferably, the rotating rod 11 and the rotating rod mounting groove 10j are non-circular.

[0156] In one embodiment, such as Figures 27 to 29The drive assembly also includes a drive motor 18, a drive wheel 16, a driven wheel 15, and a belt 17. The drive motor 18 is connected to the drive wheel 16 and can drive the drive wheel 16 to rotate. The drive wheel 16 and the driven wheel 15 are connected by a belt 17. The driven wheel 15 is fixedly connected to the rotating rod 11.

[0157] In one specific embodiment, the drive assembly further includes a mounting frame 13, on which the drive motor 18, the driving wheel 16, and the driven wheel 15 are all mounted. The shaft connected to the driven wheel 15 passes through the mounting frame 13 and is connected to the rotating rod 11.

[0158] More specifically, the shaft and rotating rod 11 connected to the driven wheel 15 are connected by screws.

[0159] In a preferred embodiment, a transmission bearing 14 is provided between the shaft connected to the driven wheel 15 and the mounting bracket 13.

[0160] Specifically, the shaft connected to the driven wheel 15 passes through the center of the conductive element 12, and the wire connected to the conductive element 12 passes through the mounting bracket 13 and connects to the main control structure 20.

[0161] In one embodiment, the roller brush assembly further includes an end cap 1, and a roller brush bearing 2 is provided between the roller brush body 3 and the end cap 1.

[0162] Specifically, such as Figure 19 and Figure 24 The end of the roller brush body 3 away from the cover plate 10d is provided with a bearing mounting boss 3k, and the roller brush bearing 2 is sleeved on the bearing mounting boss 3k and located between the bearing mounting boss 3k and the end cover 1.

[0163] Specifically, the end of the roller brush body 3 away from the cover plate 10d is provided with an end cover guide platform 3j, and the end cover 1 is provided on the end cover guide platform 3j, which can be used to position and install the end cover 1.

[0164] According to an embodiment of the present invention, another aspect provides a cleaning device, including a bottom housing 19 and the roller brush assembly provided in the above embodiments.

[0165] The bottom shell 19 is provided with a roller brush movable cavity; the roller brush body 3 is rotatably disposed in the roller brush movable cavity, and the drive component is disposed in the bottom shell 19.

[0166] In this cleaning device, the fixed cleaning component 4 outside the roller brush body 3 contacts the cleaning surface 21 for cleaning. When the cleaning surface 21 changes, causing a sudden change in the friction force on the fixed cleaning component 4, the roller brush body 3 and the transmission component 10 will rotate relative to each other. This causes the position detection sensor 8 to detect a change in the distance signal between itself and the detection block 9. At this time, the main control structure 20 controls and adjusts the driving force of the drive component, thereby adjusting the rotation speed of the transmission component 10 so that the telescopic cleaning component 5 extends to a length corresponding to the distance signal detected by the position detection sensor 8. This achieves a stable patting force, uniform cleaning, and good cleaning effect on the cleaning surface 21 with different materials and friction forces.

[0167] In one specific embodiment, the roller brush assembly includes an end cap 1, a roller brush bearing 2 is provided between the roller brush body 3 and the end cap 1, and the end cap 1 is fixed to the bottom shell 19.

[0168] In one specific embodiment, the driving component and the main control structure 20 are both located on the bottom shell 19.

[0169] In one specific embodiment, the cleaning device is a mite remover.

[0170] Although embodiments of the invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the invention, and such modifications and variations all fall within the scope defined by this application.

Claims

1. A roller brush assembly, characterized in that, include: The roller brush body (3) is provided with a fixed cleaning component (4), and the roller brush body (3) is provided with a mounting through hole (3e); Telescopic assembly, including telescopic cleaning element (5), said telescopic cleaning element (5) being adapted to extend or retract through said mounting through hole (3e); An elastic element (7) is disposed between the telescopic assembly and the brush body (3); A transmission component (10) is at least partially disposed within the roller brush body (3). One of the transmission component (10) and the roller brush body (3) is provided with a detection block (9), and the other of the transmission component (10) and the roller brush body (3) is provided with a position detection sensor (8). The position detection sensor (8) can detect the distance signal between itself and the detection block (9). The transmission component (10) can drive the telescopic assembly to extend and retract. A drive assembly, connected to the transmission component (10), is used to drive the transmission component (10) to rotate; The main control structure (20) is communicatively connected to the drive component and the position detection sensor (8). It can control and adjust the driving force of the drive component according to the distance signal detected by the position detection sensor (8), thereby adjusting the rotation speed of the transmission component (10) so that the telescopic cleaning component (5) extends to a length corresponding to the distance signal detected by the position detection sensor (8).

2. The roller brush assembly according to claim 1, characterized in that, The telescopic assembly includes a sliding rod (6), the telescopic cleaning component (5) is disposed on the sliding rod (6), and the transmission component (10) can drive the sliding rod (6) to slide, thereby driving the telescopic cleaning component (5) to extend and retract.

3. The roller brush assembly according to claim 2, characterized in that, The main body of the roller brush (3) is provided with a sliding rod mounting groove (3b), and the sliding rod (6) is slidably disposed in the sliding rod mounting groove (3b).

4. The roller brush assembly according to claim 3, characterized in that, The main body of the roller brush (3) is provided with a sliding rod retraction limiting rib (3c). When the telescopic cleaning component (5) retracts to its shortest extension length, the sliding rod (6) abuts against the sliding rod retraction limiting rib (3c).

5. The roller brush assembly according to claim 4, characterized in that, The sliding rod (6) includes a horizontal plate (6a) and a vertical plate (6b) arranged in a T-shape. At least the vertical plate (6b) is located in the sliding rod mounting groove (3b). The telescopic cleaning component (5) is located on the side of the horizontal plate (6a) away from the vertical plate (6b). When the telescopic cleaning component (5) is retracted to its shortest extension length, the side of the horizontal plate (6a) facing the vertical plate (6b) abuts against the sliding rod retraction limiting rib (3c).

6. The roller brush assembly according to claim 4, characterized in that, The main body of the roller brush (3) is provided with a movable cavity (3d), which is connected to the mounting through hole (3e). At least part of the telescopic cleaning component (5) is provided in the movable cavity (3d) and can move in the movable cavity (3d).

7. The roller brush assembly according to claim 6, characterized in that, The sliding rod retraction limiting rib (3c) is located at the end of the movable cavity (3d) away from the mounting through hole (3e); And / or, at least one side of the active cavity (3d) is provided with a guide rib (3h), and the telescopic cleaning member (5) is adapted to telescopically extend and retract along the guide rib (3h).

8. The roller brush assembly according to any one of claims 2 to 7, characterized in that, The sliding rod (6) is provided with a clamping groove (6c), and the telescopic cleaning component (5) is clamped in the clamping groove (6c).

9. The roller brush assembly according to any one of claims 2 to 7, characterized in that, The elastic element (7) is located between the telescopic cleaning element (5) and the roller brush body (3).

10. The roller brush assembly according to claim 9, characterized in that, The main body of the roller brush (3) is provided with a first spring limiting part (3f), the telescopic cleaning member (5) is provided with a second spring limiting part (5c), one end of the elastic member (7) is provided at the first spring limiting part (3f), and the other end of the elastic member (7) is provided at the second spring limiting part (5c).

11. The roller brush assembly according to claim 10, characterized in that, The telescopic cleaning component (5) is L-shaped and includes a connecting part (5a) and a cleaning part (5b). The cleaning part (5b) is adapted to extend or retract through the mounting through hole (3e). The connecting part (5a) is provided on the sliding rod (6), and the connecting part (5a) is provided with a second spring limiting part (5c).

12. The roller brush assembly according to any one of claims 1 to 7, characterized in that, The main body of the roller brush (3) is provided with a detection block mounting groove (3g), and the detection block (9) is located in the detection block mounting groove (3g).

13. The roller brush assembly according to any one of claims 1 to 7, characterized in that, The center of the roller brush body (3) is provided with a first mating part (3i), and the center of the transmission component (10) is provided with a second mating part (10c). The first mating part (3i) and the second mating part (10c) are rotatably mated.

14. The roller brush assembly according to claim 13, characterized in that, The transmission component (10) includes a central rod (10a) and a pusher plate (10b) disposed on the central rod (10a), the pusher plate (10b) being used to push the telescopic assembly to extend and retract.

15. The roller brush assembly according to claim 14, characterized in that, The transmission component (10) also includes a cover plate (10d) located at one end of the central rod (10a), the cover plate (10d) being adapted to close one end of the roller brush body (3), and the position detection sensor (8) being located on the cover plate (10d).

16. The roller brush assembly according to claim 15, characterized in that, The cover plate (10d) is provided with a position detection sensor mounting slot (10e), and the position detection sensor (8) is located in the position detection sensor mounting slot (10e).

17. The roller brush assembly according to claim 16, characterized in that, The cover plate (10d) is also provided with a retractable striker mounting groove (10f), and the retractable striker of the position detection sensor (8) is limited to the retractable striker mounting groove (10f). The groove wall of the retractable striker mounting groove (10f) is provided with a mounting hole (10g) that penetrates the cover plate (10d). The retractable striker of the position detection sensor (8) is adapted to extend and retract through the mounting hole (10g). The roller brush assembly also includes a conductive element (12), the retractable striker of the position detection sensor (8) is in contact with the conductive element (12), and the conductive element (12) is electrically connected to the main control structure (20).

18. The roller brush assembly according to claim 15, characterized in that, The cover plate (10d) is also provided with a rotation angle limiting block (10i), and the roller brush body (3) is provided with a limiting groove (3m). The rotation angle limiting block (10i) is rotatably disposed in the limiting groove (3m), and the limiting groove (3m) is used to limit the rotation angle of the rotation angle limiting block (10i).

19. The roller brush assembly according to any one of claims 1 to 7, 14 to 18, characterized in that, The drive assembly includes a drive structure and a rotating rod (11). The drive structure is used to drive the rotating rod (11) to rotate. The rotating rod (11) is inserted into the transmission component (10).

20. A cleaning device, characterized in that, include: The bottom shell (19) is provided with a roller brush moving chamber; The roller brush assembly according to any one of claims 1 to 19, wherein the roller brush body (3) is rotatably disposed in the roller brush active cavity, and the drive assembly is disposed in the bottom shell (19).

Images