Cleaning device for sink cleaning

Abstract

The utility model relates to a kind of cleaning device for sink cleaning, for the wall surface of sink is cleaned, comprising: pedestal;Cloth mounting rack, install in the bottom of the pedestal;Annular cloth, can be driven by driving mechanism and be installed on the cloth mounting rack with circulating rotation;The base is also formed with the force of the handhold position for user to hold to exert annular cloth on the cleaning area of sink on it.Excellent in that: the annular cloth of circulating rotation is combined with the pressure that user actively exerts through handhold position, simulates the key action of artificial scrubbing.This active, physical friction cleaning force, far more than simple spray or static soak, can strongly remove stubborn stains such as oil stain, scale, especially solve the problem of cleaning force deficiency of prior art.

Description

Technical Field

[0001] This utility model relates to the field of sink cleaning technology, and in particular to a cleaning device for cleaning sinks. Background Technology

[0002] Sinks are prone to accumulating stubborn stains such as oil and limescale during daily use. Current cleaning methods mainly rely on manual scrubbing or soaking. Manual cleaning is inefficient and struggles to thoroughly remove residue from the sink walls, especially in deep sinks and corner areas. Soaking consumes a large amount of water and requires secondary cleaning afterward, failing to provide immediate cleaning. While some products use chemical cleaners, there is a risk of corrosion to the sink surface and water contamination. In recent years, although a few self-cleaning technologies have emerged, they are mostly limited to cleaning the drain area or simple spray systems, lacking proactive cleaning solutions for the sink walls. Neither drain cleaners nor simple sprays can simulate the key action of manual scrubbing—applying physical pressure and friction. There are also cleaning devices with cloths to clean the sink walls, but considering that the junction of the bottom and side walls (L-shaped dead corners) and the side walls themselves (especially the upper part and corners) are the most prone to stain accumulation, existing self-cleaning structures cannot effectively reach these areas (due to structural limitations) or provide sufficient cleaning power.

[0003] It is understood that the above statements only provide background information related to this utility model and do not necessarily constitute prior art. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a cleaning device for cleaning sinks that can effectively clean the walls of sinks, in light of the current state of the technology.

[0005] The technical solution adopted by this utility model to solve the above-mentioned technical problems is: a cleaning device for cleaning sinks, used to clean the walls of sinks, comprising:

[0006] Base;

[0007] A cloth mounting bracket is installed at the bottom of the base;

[0008] A ring-shaped cleaning cloth is mounted on the cleaning cloth mounting frame and can be rotated cyclically by a drive mechanism.

[0009] The base also has a handle for the user to hold and apply force to the area of ​​the sink to be cleaned by the circular cloth.

[0010] To achieve stable cyclic rotation of the ring-shaped cleaning cloth on the cleaning cloth mounting frame, the mounting frame is equipped with a driving roller that can be rotated by a drive mechanism and a freely rotatable driven roller on two opposite sides. The ring-shaped cleaning cloth is wound between the driving roller and the driven roller of the mounting frame and can be driven to circulate by the driving roller. The double-roller structure of the cleaning cloth mounting frame ensures uniform tension of the ring-shaped cleaning cloth and reliable transmission. The driving roller drives the cloth circulation, while the driven roller provides auxiliary support, improving the smoothness of rotation.

[0011] In order to achieve effective cleaning of the bottom wall of the sink, especially the area where the bottom wall meets the side wall, the base includes a fixed frame and a movable frame, the movable frame being rotatably connected to the fixed frame;

[0012] The cloth mounting bracket includes a first mounting bracket and a second mounting bracket that can rotate relative to each other about a first axis extending to the left and right. The first mounting bracket is fixed relative to the fixed bracket and has the active roller on the side away from the second mounting bracket. The second mounting bracket has the driven roller on the side away from the first mounting bracket. The extending directions of the active roller and the driven roller are parallel to the first axis.

[0013] The second mounting bracket, as it rotates relative to the first mounting bracket, allows the cloth mounting bracket to have at least a flat state and a folded state:

[0014] In the flat state, the first mounting bracket and the second mounting bracket are unfolded relative to each other, and the bottom side of the annular cloth mounted on the cloth mounting bracket serves as the cleaning surface;

[0015] In the folded state, the first mounting bracket and the second mounting bracket are closed relative to each other, so that the cloth mounting bracket is L-shaped as a whole, and the annular cloth wrapped around the cloth mounting bracket has a horizontal cleaning surface at the bottom and a vertical cleaning surface at the side.

[0016] The second mounting bracket is detachably mounted on the movable bracket, and the axis of rotation of the movable bracket relative to the fixed bracket is on the same straight line as the first axis.

[0017] The aforementioned "flat state" can be understood as the first and second mounting brackets of the cloth mounting rack being unfolded relative to each other, so that the entire cloth mounting rack is basically a plane (or has a small curvature). The main effective cleaning area of ​​the ring-shaped cloth is located on a relatively continuous plane at the bottom of the device, which is suitable for cleaning flat areas such as the bottom of the sink.

[0018] The aforementioned "folded state" can be understood as the first and second mounting brackets of the cloth mounting rack rotating and folding together (usually close to 90 degrees), making the entire cloth mounting rack L-shaped (or approximately right-angled). At this time, the circular cloth forms a horizontal (or nearly horizontal) cleaning surface at the bottom of the device, while simultaneously forming a vertical (or nearly vertical) cleaning surface on one side of the device (usually the front or outer side), suitable for cleaning the bottom of the sink and vertical sidewalls or corners at the same time.

[0019] Because the mounting bracket of the cleaning device and the ring-shaped cloth fitted on the bracket can form an L-shaped fold, the cloth simultaneously creates a horizontal and vertical cleaning surface. The horizontal surface precisely conforms to the bottom wall of the sink, while the vertical surface completely covers the side walls (including the upper part and corner areas). In its folded state, the cloth naturally wraps around the L-shaped junction of the bottom and side walls, its flexible material tightly conforming to the contours of this hard-to-reach area, effectively solving the problem that existing technologies cannot reach this heavily soiled area. During use, the active roller drives the ring-shaped cloth to rotate, causing the cloth fibers to continuously scrape and rub against the sink wall surface. This directly simulates the core actions of manual scrubbing (applying pressure and friction), and its removal power for stubborn oil stains and limescale far surpasses that of simple water jets or soaking, overcoming the shortcomings of insufficient spray cleaning power. Furthermore, the cleaning device efficiently cleans large areas of the bottom wall when laid flat; switching to the folded state seamlessly transforms it into a "three-dimensional" cleaning mode that simultaneously cleans the bottom wall, side walls, and junctions. A single device and a single operation can thoroughly clean all key inner surfaces of the sink, eliminating the need for manual secondary treatment or combining multiple spot cleaners, significantly improving cleaning efficiency and thoroughness. Compared to existing soaking cleaning technologies, it greatly saves water resources and eliminates the need for extensive rinsing after cleaning, achieving an "instant" cleaning effect.

[0020] Considering the need to adapt to different gripping postures (such as two-handed operation in a flat state / one-handed grip in a folded state), the handle position includes a first handle groove located on the rear side of the fixed frame and a second handle groove located on the front side of the movable frame.

[0021] To better facilitate gripping and fit the palm, both the first and second hand-holding grooves are strip-shaped grooves extending in the left-right direction.

[0022] As an improvement, in the flat state, the opening of the first hand-clip groove faces backward, and the opening of the second hand-clip groove faces forward;

[0023] In the folded state, the movable frame is retracted relative to the fixed frame, with the opening of the second handle groove facing upwards and close to the first handle groove, allowing the user to hold it with one hand. In the flat state, the two handle grooves are separated front and back, facilitating two-handed gripping and pressure application for cleaning; in the folded state, the two handle grooves are close together, forming a single-handed grip point for easy one-handed operation. Based on the foldable and unfoldable structure, the aforementioned handle grooves allow the grip position of the cleaning device to better conform to ergonomics after form switching.

[0024] To better fit the user's hand, the width of the first hand-holding groove is greater than that of the second hand-holding groove. The wide groove of the first hand-holding groove accommodates the fingers of the dominant hand, improving grip stability, while the narrow groove of the second hand-holding groove provides thumb-assisted positioning, optimizing hand-eye coordination.

[0025] As an improvement, the movable frame is equipped with a first scraper, which acts on the surface of the annular cloth and scrapes away the waste material on the surface of the annular cloth during its cyclic rotation. The first scraper can automatically and continuously scrape away solid waste material adhering to the surface of the cloth during its rotation, effectively preventing waste from accumulating on the cloth and causing secondary pollution, and significantly improving cleaning effect and hygiene.

[0026] Considering that the rag is still full of sewage after only scraping off solid waste, it will continue to drip water or spread sewage during subsequent cleaning, affecting the cleaning effect (such as leaving water marks, diluting cleaning agents) and user experience, as an improvement, the movable frame is also equipped with a squeegee. The squeegee can act on the surface of the annular rag and is located in front of the first squeegee along the rotation direction of the annular rag.

[0027] The aforementioned "wastewater" can be understood as the liquid that needs to be removed, absorbed or carried by the cloth during the cleaning process. It typically contains a mixture of detergent, grease, and dissolved dirt. Examples include dirty water containing dish soap foam and oily wastewater. The squeegee effectively wrings out / scrapes water from the circular cloth, significantly reducing its moisture content. The squeegee is positioned in front of the scraper, meaning the cloth is first scraped to remove most of the wastewater, then the scraper removes solid debris. This sequence prevents secondary diffusion caused by wastewater washing away solid waste, resulting in cleaner removal. A dry cloth has stronger dirt-absorbing and wiping capabilities, improving cleaning effectiveness.

[0028] To further enhance the cleaning effect of the circular cloth, the front bottom of the mounting bracket has a second scraper that protrudes forward and extends in the left-right direction. In the folded state, the corresponding portion of the circular cloth contacts the second scraper. In the folded state, the second scraper contacts the vertical portion of the circular cloth. The second scraper can scrape away attached debris and / or wastewater as the vertical portion of the circular cloth rotates, extending the self-cleaning function to the vertical cleaning surface and ensuring continuous cleaning effectiveness and hygiene when cleaning the sink walls.

[0029] Compared with existing technologies, the advantages of this invention are: the circulating ring-shaped cleaning cloth, combined with the pressure actively applied by the user through the handle, simulates the key actions of manual scrubbing (applying pressure + friction). This active, physical friction cleaning force far surpasses simple spraying or static soaking, powerfully removing stubborn stains such as oil and limescale, and especially solving the problem of insufficient cleaning power in existing technologies. The handle design makes operation intuitive and convenient; users can adjust the applied pressure and cleaning position in real time according to the stain condition and cleaning needs, achieving precise and controllable active cleaning, overcoming the problem of insufficient adaptability of automated structures in complex tank environments. Attached Figure Description

[0030] Figure 1 This is a three-dimensional structural diagram of the cleaning device according to an embodiment of the present utility model;

[0031] Figure 2 This is a three-dimensional structural diagram of the cleaning device according to another embodiment of the present utility model;

[0032] Figure 3 This is an exploded view of the cleaning device according to an embodiment of the present invention;

[0033] Figure 4 This is a vertical sectional perspective view of the cleaning device according to an embodiment of the present utility model, cut along the front-back direction, with the mounting frame and the ring-shaped wiping cloth in a flat state.

[0034] Figure 5 This is a vertical sectional perspective view of the cleaning device according to an embodiment of the present utility model, cut along the front-back direction, with the mounting frame and the ring-shaped cleaning cloth in a folded state;

[0035] Figure 6 This is a vertical sectional perspective view of the cleaning device according to an embodiment of the present utility model, cut along the left-right direction;

[0036] Figure 7 This is a three-dimensional structural diagram of the cleaning device of this utility model with the cloth mounting bracket and the movable bracket in a separated state.

[0037] Figure 8This is a three-dimensional structural diagram of the cleaning device's cloth mounting bracket according to an embodiment of the present utility model. The two brackets of the second mounting bracket are in a separated state.

[0038] Figure 9 This is a schematic diagram of the cleaning device of the present invention with the first and second mounting brackets of the cloth mounting bracket in a separated state.

[0039] Figure 10 This is a structural schematic diagram of the cleaning device according to another embodiment of the present invention, showing the deflection motion mechanism. Detailed Implementation

[0040] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0041] In the specification and claims of this utility model, terms indicating direction, such as "front," "rear," "upper," "lower," "left," "right," "side," "top," and "bottom," are used to describe various exemplary structural parts and elements of this utility model. However, the use of these terms is merely for the purpose of explanation and is based on the exemplary orientations shown in the accompanying drawings. Since the embodiments disclosed in this utility model can be arranged in different orientations, these terms indicating direction are for illustrative purposes only and should not be regarded as limitations. For example, "upper" and "lower" are not necessarily limited to directions opposite to or consistent with the direction of gravity.

[0042] Figures 1-10 This illustration shows a preferred embodiment of the cleaning device for cleaning a sink according to the present invention. The cleaning device for cleaning a sink in this embodiment includes a base 1, a cloth mounting bracket 30, a ring-shaped cloth 71, a drive mechanism, and a deflection mechanism. The base 1 includes a fixed frame 10 and a movable frame 20. The fixed frame 10 serves as a carrier for supporting components such as the cloth mounting bracket 30, the ring-shaped cloth 71, the drive mechanism, and the deflection mechanism. The fixed frame 10 is generally elongated, and the movable frame 20 is also correspondingly elongated. The two ends of the movable frame 20 in the length direction are rotatably connected to the fixed frame 10 via a second rotating shaft 23. The cloth mounting bracket 30 includes a first mounting bracket 31 and a second mounting bracket 32, which are hinged together by a rotary connection mechanism, allowing the second mounting bracket 32 ​​to rotate relative to the first mounting bracket 31 about a first axis.

[0043] The cloth mounting bracket 30 is detachably mounted on the fixed bracket 10 and the movable bracket 20. Specifically, to match the fixed bracket 10 and the movable bracket 20, the first mounting bracket 31 and the second mounting bracket 32 ​​are also elongated. The first mounting bracket 31 has a first side 311 and a second side 312, and the second mounting bracket 32 ​​has a third side 321 and a fourth side 322. A drive roller 33 is provided at the first side 311 of the first mounting bracket 31. The drive roller 33 also extends in the left-right direction. The first end 3311 of the drive roller 33 can be connected to a drive mechanism provided on the fixed bracket 10, so that it can be driven by the drive mechanism to rotate around its own axis. More specifically, an auxiliary connecting arm is provided at one end of the first mounting bracket 31. A pivot hole is provided on the auxiliary connecting arm at a position opposite to the second end 3312 of the drive roller 33, allowing the second end of the drive roller 33 to be rotatably disposed therein. The auxiliary connecting arm also has an outwardly extending positioning post 111 for connection with the fixed frame 10. This positioning post 111 is a flat connecting shaft. The bottom left and right sides of the fixed frame 10 have downwardly extending protrusions 12, which are respectively opposite to the left and right sides of the first mounting frame 21 and respectively connected to the corresponding ends of the auxiliary connecting arm 11 and the drive roller 33. One of the opposing sidewalls of the two protrusions 12 is provided with a rotating shaft sleeve 13, and the other with a positioning sleeve 121. The inner end of the rotating shaft sleeve 13 is coaxially connected to a transmission gear 92, which is driven to rotate by a drive mechanism. The outer end of the rotating shaft sleeve 13 is exposed relative to the sidewall of the protrusion 12 and has a shaft hole into which the first end of the drive roller 23 can be inserted. See also... Figure 3 and Figure 4 The first end of the drive roller 33 can pass through the rotating shaft frame 3111 of the first mounting bracket 31 and be inserted into the aforementioned rotating shaft sleeve 13. The rotating shaft sleeve 13 and the first end of the drive roller 33 can transmit torque in the circumferential direction, such as if the first end of the drive roller 33 is set as a non-circular wall. The drive mechanism includes a drive motor 91, and the output shaft of the drive motor 91 is connected to the transmission gear 92 coaxial with the rotating shaft sleeve 13 through a gear assembly 93, thereby driving the drive roller 33 to rotate. Adapted to the positioning sleeve 121, the auxiliary connecting arm 11 has a flat positioning post 111 extending toward the positioning sleeve 121, and the bottom of the positioning sleeve 121 has a mounting port 1210 for the positioning post 111 to be inserted into the positioning sleeve 121 from the side. The width of the mounting port 1210 is matched with the radial dimension of the narrower part of the positioning post 111 (generally the distance between two flat surfaces). During installation, the positioning post 111 of the auxiliary connecting arm 11 is inserted into the positioning sleeve 121 from the mounting port 1210. After rotating a certain angle (such as rotating the rag mounting bracket to a horizontal state), the positioning post 111 can be limited in the positioning sleeve 121 and will not come out of the mounting port 1210.

[0044] A driven roller 34 capable of rotating freely around its own axis is provided along the fourth side 322 of the second mounting bracket 32. The left and right ends of the driven roller 34 are rotatably mounted on the two extended walls along the fourth side 322 of the second mounting bracket 32.

[0045] The annular rag 71 is wound between the drive roller 33 and the driven roller 34 of the rag mounting frame 30, and can be driven by the drive roller 33 to rotate in a cycle.

[0046] The second mounting bracket 32 ​​is rotatably connected to the first mounting bracket 31. Specifically, the two ends of the second side 312 of the first mounting bracket 31 along its length are provided with a first rotating shaft 3130, and the two first rotating shafts 3130 extend in opposite directions along the same straight line. The two ends of the third side 321 of the second mounting bracket 32 ​​along its length are respectively provided with a first shaft hole 3211 for rotatably constraining the corresponding first rotating shaft 3130, forming a rotating pair (of course, the rotating shaft and shaft hole can also be arranged in opposite directions).

[0047] The second side 312 of the first mounting bracket 31 is constructed as a smooth curved support column 313, and the third side 321 of the second mounting bracket 32 ​​is provided with an arc-shaped groove 3210 that matches its contour. The support column 313 and the arc-shaped groove 3210 may or may not be in contact. If they are in contact, the contact surface between the support column 313 and the arc-shaped groove 3210 is made of a low-friction material (such as a Teflon coating) to ensure smooth rotation.

[0048] Combination Figure 4 and Figure 5 In this embodiment, the second mounting bracket 32 ​​rotates relative to the first mounting bracket 31, causing the cloth mounting bracket 30 to have at least a flat state and a folded state: In the flat state, the first mounting bracket 31 and the second mounting bracket 32 ​​are unfolded relative to each other and are basically on the same horizontal plane, so that the bottom side of the annular cloth 71 wrapped around the cloth mounting bracket 30 serves as the cleaning surface; In the folded state, the first mounting bracket 31 and the second mounting bracket 32 ​​are folded relative to each other, so that the cloth mounting bracket 30 is L-shaped as a whole, and the annular cloth 71 wrapped around the cloth mounting bracket 30 has a horizontal cleaning surface at the bottom and a vertical cleaning surface at the side.

[0049] To ensure the cloth mounting bracket 30 is securely held in either the flat or folded state, a limiting member is provided between the first mounting bracket 31 and the second mounting bracket 32. Specifically, the support column 313 has a first slot 3131 (corresponding to the flat state) and a second slot 3132 (corresponding to the folded state) circumferentially. The third side 321 of the second mounting bracket 32 ​​has a mounting cavity 323 for mounting the limiting member, which includes a limiting buckle 41 and a first elastic element 42 (which may be a compression spring). The side wall of the arc-shaped groove 3210 has an opening 324 that penetrates the mounting cavity 323. The compression spring pushes the engaging portion 411 (with a wedge-shaped surface) of the limiting buckle 41 outwards, engaging into the corresponding slot of the support column 313. The contact surface between the engaging portion 411 of the limiting buckle 41 and the corresponding slot is a sloping curved surface. When a rotational force exceeding a set value is applied, the sloping guide portion 411 compresses the compression spring and slides out of the slot, achieving a state switch.

[0050] In this embodiment, the movable frame 20 is rotatably connected to the fixed frame 10, and the rotation axis of the movable frame 20 relative to the fixed frame 10 is on the same straight line as the rotation axis between the first mounting frame 31 and the second mounting frame 32 of the cloth mounting frame 30. Specifically, the left and right ends of the movable frame 20 have left and right arms 21 extending toward the fixed frame 10, and the inner side of the arms 21 is provided with a buckle groove 211. The left and right ends of the second mounting frame 32 are provided with elastic buckles 51, and the second mounting frame 32 is provided with a second elastic element 52 (which can also be a compression spring) so that the elastic buckles 51 have an outward extension and retraction tendency. During installation, the elastic buckles 51 are pressed to retract, aligned with the buckle groove 211, and then released. The second elastic element 52 pushes the buckles into the groove, realizing the detachable connection between the movable frame 20 and the second mounting frame 32.

[0051] See Figure 8 To facilitate the installation of the aforementioned limiting buckle 41, first elastic element 42, elastic buckle 51 and second elastic element 52, the second mounting bracket 32 ​​includes a bracket plate 320 that is fastened together from top to bottom. When the two bracket plates 320 are fastened together, they form corresponding chambers for installing the aforementioned components.

[0052] The main body of the movable frame 20 is provided with a rubber scraper 22 extending in the left-right direction. The rubber scraper 22 can conform to the outer surface of the annular wiping cloth 71. When the wiping cloth rotates, the scraper 22 can scrape off the attached dirt and correct the position of the wiping cloth.

[0053] The movable frame 20 includes a frame body 200 and the aforementioned support arms 21 arranged on the left and right sides of the frame body 200. The two support arms 21 are rotatably connected to the fixed frame 10. The frame body 200 includes a frame plate located above the top front side of the annular wiping cloth 71. The first scraper 221 and the squeegee 222 are both located at the bottom of the frame plate and in the front area of ​​the top of the annular wiping cloth 71. The first scraper 221 and the squeegee 222 extend along the width direction of the annular wiping cloth 71 to ensure that the entire width of the wiping cloth (including the easily overlooked edge area) can be effectively cleaned, improving the overall cleaning uniformity and thoroughness. The first scraper 221 has first protrusions arranged sequentially along its length direction at the edge of the annular wiping cloth 71. The design of the protrusion structure can more effectively cut into and loosen stubborn debris or sticky stains (such as paste, hair) attached to the edge area of ​​the wiping cloth, improving scraping efficiency.

[0054] The circular cloth of the cleaning device in this embodiment rotates continuously, removing the cleaned parts and replacing the uncleaned parts, thus improving cleaning continuity and efficiency. The first scraper automatically and continuously scrapes off solid waste adhering to the surface of the cloth during its rotation, effectively preventing waste from accumulating on the cloth and causing secondary pollution, significantly improving cleaning effect and hygiene.

[0055] The front wall of the mounting bracket 10 is a vertically extending wall, with a second scraper 14 protruding forward and extending in the left-right direction at its bottom. When the cloth mounting bracket 30 is folded, the corresponding portion of the annular cloth 71 contacts the second scraper 14. During the rotation of the annular cloth 71, the vertical portion scrapes away attached debris and / or wastewater, extending the self-cleaning function to the vertical cleaning surface and ensuring continuous cleaning effectiveness and hygiene when cleaning the sink wall. When the cloth mounting bracket 30 is laid flat, the second scraper 14 does not contact the annular cloth 71, and the annular cloth 71 does not contact the second scraper 14 on the mounting bracket 10, avoiding additional resistance and wear, ensuring smooth operation of the device in planar cleaning mode and extending the cloth's lifespan. A gap 100 exists between the bracket body 200 and the second scraper 14 in the front-back direction. The design of the gap 100 between the frame body 200 of the movable frame 20 and the second scraper 14 on the fixed frame 10 also makes it convenient for users to clean up the garbage scraped off by the second scraper 14.

[0056] The deflection mechanism in this embodiment includes a deflection motor (not shown in the drawings) mounted on the fixed frame 10, with a drive gear 63 mounted on the output shaft of the deflection motor. The second shaft 23 of the second mounting bracket 32 ​​is coaxially connected to the drive gear 62, and the drive gear 63 meshes with the drive gear 62 through an intermediate gear 64 (or a worm gear drive). The controller of the cleaning device is electrically connected to the aforementioned deflection motor and a distance sensor (an ultrasonic or infrared sensor can be used, and it can be located on the front side of the fixed frame 10).

[0057] When the cleaning device is operating in a flat position, if the distance sensor detects no obstructions (such as side walls) in front, the controller controls the deflection motor to drive the movable frame 20 to the unfolded position, and the limit buckle 41 engages with the first slot 3131. At this time, the bottom of the cloth forms a horizontal cleaning surface, covering the bottom wall of the sink. When it moves close to the side wall of the sink, if the distance sensor detects that the distance to the side wall is ≤ a set threshold (such as 5cm), the controller starts the deflection motor, driving the second mounting frame 32 to rotate 90° to the retracted position. The limit buckle 41 engages with the second slot 3132, and the cloth forms an L-shaped cleaning surface (the horizontal part cleans the bottom wall, and the vertical part adheres to the side wall and the L-shaped joint).

[0058] To facilitate user gripping of the cleaning device and increase the force exerted by the ring-shaped cloth 71 on the wall of the sink to improve cleaning effectiveness, a handle is also formed on the base for the user to grip. During operation of the cleaning device, the user can apply force from the ring-shaped cloth 71 to the area of ​​the sink to be cleaned by gripping the handle.

[0059] In some embodiments, the handle position includes a first handle groove 101 located on the rear side of the fixed frame 10 and a second handle groove 201 located on the front side of the movable frame 20. Both the first handle groove 101 and the second handle groove 201 are strip-shaped grooves extending in the left-right direction. Figure 4 As shown, in the flat position, the opening of the first handle groove 101 faces backward, and the opening of the second handle groove 201 faces forward. In this flat position, the two handle grooves are separated, making it easy for the user to grip and apply pressure to thoroughly clean the sink. Figure 5 As shown, in the folded state, the movable frame 20 is retracted relative to the fixed frame 10. Correspondingly, the opening direction of the second hand groove 201 is adjusted to face upwards and close to the first hand groove 101, thus allowing the user to hold it with one hand. In the folded state, the two hand grooves are close together, forming a single-handed grip point, facilitating one-handed gripping and operation. To better fit the user's palm for gripping, in some embodiments, the groove width of the first hand groove 101 is greater than that of the second hand groove 201. The first hand groove 101 uses a wide groove to accommodate the fingers of the dominant hand, improving grip stability, while the narrow groove design of the second hand groove 201 provides thumb-assisted positioning, optimizing hand coordination.

[0060] The cleaning device can be controlled by a voice module, which is equipped with a controller, a voice receiving module, and a voice parsing module. The voice receiving module receives user commands, and the voice parsing module parses the commands. Based on the parsed commands, the controller controls the cleaning device to perform corresponding operations, thereby realizing intelligent control of the cleaning device and improving the user experience.

[0061] In this embodiment, the mounting bracket of the cleaning device and the annular cleaning cloth 71 fitted on the mounting bracket can form an L-shaped fold, allowing the annular cleaning cloth 71 to simultaneously create a horizontal and a vertical cleaning surface. The horizontal surface can precisely conform to the bottom wall of the sink, while the vertical surface completely covers the side walls (including the upper part and corner areas). In the folded state, the cloth naturally wraps around the L-shaped joint between the bottom and side walls, and its flexible material can tightly conform to the contour of this hard-to-reach corner, effectively solving the problem that existing technologies cannot reach this heavily soiled area. During use, the active roller 33 drives the annular cleaning cloth 71 to rotate cyclically, causing the cloth fibers to continuously scrape and rub against the surface of the sink wall. This directly simulates the core actions of manual scrubbing (applying pressure and friction), and its removal power for stubborn oil stains and scale far surpasses that of simple water flow or soaking, overcoming the shortcomings of insufficient spray cleaning power. Furthermore, the cleaning device efficiently cleans large areas of the bottom wall when laid flat; switching to the folded state seamlessly transforms it into a "three-dimensional" cleaning mode that simultaneously cleans the bottom wall, side walls, and joints. A single device and a single operation can thoroughly clean all key inner surfaces of the sink, eliminating the need for manual secondary treatment or combining multiple spot cleaners, significantly improving cleaning efficiency and thoroughness. Compared to existing soaking cleaning technologies, it greatly saves water resources and eliminates the need for extensive rinsing after cleaning, achieving an "instant" cleaning effect.

Claims

1. A cleaning device for sink cleaning for cleaning a wall surface of a sink, characterized in that include: Base (1); A cloth mounting bracket (30) is installed at the bottom of the base (1); A ring-shaped wiping cloth (71) is mounted on the wiping cloth mounting frame (30) and can be rotated cyclically by the drive mechanism; The base (1) also has a handle for the user to hold and apply force to the area of ​​the sink to be cleaned by the ring-shaped cloth (71).

2. The cleaning device for sink cleaning according to claim 1, characterized in that: The cloth mounting bracket (30) has a drive roller (33) that can be driven to rotate by a drive mechanism and a driven roller (34) that can rotate freely on its two opposite sides. The annular cloth (71) is wrapped between the drive roller (33) and the driven roller (34) of the cloth mounting bracket (30) and can be driven to rotate in a cycle by the drive roller (33).

3. The cleaning device for cleaning a sink according to claim 2, characterized in that: The base includes a fixed frame (10) and a movable frame (20), the movable frame (20) being rotatably connected to the fixed frame (10); The cloth mounting bracket (30) includes a first mounting bracket (31) and a second mounting bracket (32) that can rotate relative to each other about a first axis extending to the left and right. The first mounting bracket (31) is fixed relative to the fixed bracket (10) and the active roller (33) is provided on the side away from the second mounting bracket (32). The driven roller (34) is provided on the side of the second mounting bracket (32) away from the first mounting bracket (31). The extending directions of the active roller (33) and the driven roller (34) are parallel to the first axis. The second mounting bracket (32) rotates relative to the first mounting bracket (31), causing the cloth mounting bracket (30) to have at least a flat state and a folded state: In the flat state, the first mounting bracket (31) and the second mounting bracket (32) are unfolded relative to each other, and the bottom side of the annular rag (71) wrapped around the rag mounting bracket (30) serves as the cleaning surface; In the folded state, the first mounting bracket (31) and the second mounting bracket (32) are closed relative to each other, so that the rag mounting bracket (30) is L-shaped as a whole, and the annular rag (71) wrapped around the rag mounting bracket (30) has a horizontal cleaning surface at the bottom and a vertical cleaning surface at the side. The second mounting bracket (32) is detachably mounted on the movable bracket (20), and the axis of rotation of the movable bracket (20) relative to the fixed bracket (10) is on the same straight line as the first axis.

4. The cleaning device for cleaning a sink according to claim 3, characterized in that: The handle position includes a first handle groove (101) located on the rear side of the fixed frame (10) and a second handle groove (201) located on the front side of the movable frame (20).

5. The cleaning device for cleaning a sink according to claim 4, characterized in that: Both the first hand-holding groove (101) and the second hand-holding groove (201) are strip-shaped grooves extending in the left-right direction.

6. The cleaning device for cleaning a sink according to claim 5, characterized in that: In the flat state, the opening of the first handle groove (101) faces backward, and the opening of the second handle groove (201) faces forward. In the folded state, the movable frame (20) is folded relative to the fixed frame (10), and the opening of the second hand slot (201) faces upward and is close to the first hand slot (101) so that the user can hold it with one hand.

7. The cleaning device for cleaning a sink according to claim 5, characterized in that: The width of the first hand-holding groove (101) is greater than that of the first hand-holding groove (101).

8. The cleaning device for cleaning a sink according to claim 4, characterized in that: The movable frame (20) is provided with a first scraper (221), which can act on the surface of the annular wiping cloth (71) and scrape off the garbage material on the surface of the annular wiping cloth (71) during the cyclic rotation of the annular wiping cloth (71).

9. The cleaning device for cleaning a sink according to claim 8, characterized in that: The movable frame (20) is also equipped with a squeegee (222), which can act on the surface of the annular wiping cloth (71).

10. The cleaning device for cleaning a sink according to claim 4, characterized in that: The front bottom of the fixing frame (10) has a second scraper (14) that protrudes forward and extends in the left and right direction. In the folded state, the corresponding part of the annular cloth (71) is in contact with the second scraper (14).

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