Cleaning devices for sink cleaning

Abstract

This utility model relates to a cleaning device for cleaning sinks, used to clean the walls of the sink. It includes: a housing defining a waste collection bin for storing waste; and a cleaning cylinder assembly including a cylinder support and a cleaning cylinder. The cylinder support is slidably constrained to the housing in a manner that allows it to move closer to or further away from the bottom edge of the wall containing the recess. An elastic element is provided between the cylinder support and the housing, ensuring that the cylinder support always tends to move closer to the bottom edge of the wall containing the recess. Under external force, the cylinder support overcomes the elastic force of the elastic element and moves away from the bottom edge of the wall containing the recess, increasing the distance between them. The advantage is that this cleaning device can effectively capture and bring different types of waste materials into the waste collection bin for sink cleaning.

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 in water. 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 achieve immediate cleaning. While some products use chemical cleaning agents, there is a risk of corrosion to the sink surface and water pollution. In recent years, although some self-cleaning technologies have emerged, they are mostly limited to localized cleaning of the drain or simple spray systems, lacking proactive cleaning solutions for the sink walls. Furthermore, the types of waste inside sinks are relatively complex, including both small particles like rice and vegetables, and larger, harder particles like bone fragments and date pits. Current technologies cannot simultaneously and efficiently capture and transport mixed waste with large particle sizes (such as small rice grains and hard bone fragments) to the collection bin, leading to clogging risks or requiring manual sorting, increasing the burden on users. Therefore, how to effectively capture different types of waste materials during cleaning and bring them into the waste collection bin has become a technical problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a cleaning device for cleaning water tanks that can effectively capture and bring different types of garbage materials into the garbage collection bin during cleaning, in light of the current state of the technology.

[0004] 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:

[0005] The shell, which internally defines a waste collection compartment for storing waste;

[0006] A cleaning cylinder assembly includes a cylinder support and a cleaning cylinder rotatably mounted on the cylinder support. The bottom and / or side of the housing have a recessed area for mounting the cleaning cylinder assembly. The wall of the recessed area is an arc-shaped structure adapted to the peripheral wall of the cleaning cylinder. A garbage inlet communicating with the garbage collection bin is also provided on the wall of the recessed area. A scraper is provided at the upper edge of the garbage inlet. The cleaning cylinder can be driven by a first drive mechanism to rotate around its own axis. During the rotation, it rolls up the garbage on the wall of the water tank and moves the garbage toward the garbage inlet. The garbage on the cleaning cylinder is scraped off by the scraper and falls into the garbage collection bin.

[0007] The cylindrical support is slidably constrained to the housing in such a way that it can move closer to or further away from the bottom edge of the wall of the placement recess. An elastic element is provided between the cylindrical support and the housing, which enables the cylindrical support to always tend to move closer to the bottom edge of the wall of the placement recess. When the cylindrical support is subjected to an external force, the cylindrical support can overcome the elastic force of the elastic element and move away from the bottom edge of the wall of the placement recess to increase the distance between the two.

[0008] As an improvement, a horizontally extending limiting slide is defined on the housing, and the cylinder support has a horizontally extending limiting plate. The extending direction of the limiting plate is perpendicular to the length direction of the cleaning cylinder, and the limiting plate is slidably constrained within the limiting slide. The limiting slide and the limiting plate cooperate to ensure that the cleaning cylinder slides only in a preset direction, maintaining alignment with the waste inlet. The horizontally extending structural design of the limiting slide and the limiting plate of the cylinder support also ensures that the center of the cleaning cylinder maintains the same distance from the surface to be cleaned as much as possible when it moves to different positions, thereby maintaining a relatively consistent cleaning force.

[0009] To facilitate the installation of the cylinder support and avoid interference, the limiting slide is located above the garbage collection bin. A first clearance opening parallel to the length direction of the cleaning cylinder is provided on the wall of the placement recess. The limiting plate passes through the first clearance opening and extends into the limiting slide.

[0010] To simplify the structure of the limiting slide and reduce costs, the housing includes a left side wall and a right side wall that are opposite to each other. Both the left side wall and the right side wall have limiting protrusions that extend toward the inside of the housing. The bottom of the limiting protrusions and the top of the waste collection bin have a gap in the vertical direction, and this gap constitutes the limiting slide.

[0011] To further ensure the stability of the reciprocating movement of the cylinder support, the top of the garbage collection bin has an upwardly extending protrusion, and the limiting plate has a strip-shaped groove. The length direction of the strip-shaped groove is perpendicular to the length direction of the cleaning cylinder, and the protrusion is slidably limited in the strip-shaped groove.

[0012] The aforementioned elastic element can employ various existing technologies, including compression springs, torsion springs, leaf springs, and other elastic elements. However, in order to better cooperate with the aforementioned limiting plate and protrusion, the protrusion passes through the strip groove and is exposed upward relative to the top of the limiting plate. The limiting plate has an upwardly extending baffle located on the side of the protrusion away from the cleaning cylinder. The elastic element is a spring, which is disposed between the protrusion and the limiting plate.

[0013] To prevent the spring from slipping, the protrusion has a first positioning post extending toward the limiting plate for the end of the spring to be fitted thereon, and the limiting plate has a second positioning post extending toward the protrusion for the other end of the spring to be fitted thereon.

[0014] To further improve cleaning effectiveness and facilitate the removal of dirt from the surface of the cleaning cylinder, a water-filling device is also included for adding water to the outer peripheral wall of the cleaning cylinder. The water-filling device includes a water tank, a water pump, and a water outlet plate. The water outlet plate is disposed on the housing and has water outlet holes arranged sequentially along the length direction of the cleaning cylinder. The water tank is connected to the water outlet plate. The water pump is located in the water flow path between the water tank and the water outlet plate, and is used to pump water from the water tank to the water outlet plate. The water outlet plate sprays water evenly along the length direction of the cleaning cylinder, softening the dirt and reducing the resistance of the scraper.

[0015] To ensure the water outlet plate is as close as possible to the cleaning cylinder and spray water onto its surface while minimizing water loss, a second clearance opening parallel to the length of the cleaning cylinder is provided on the wall of the recessed area. The water outlet plate is positioned at this second clearance opening. The second clearance opening is embedded in the water outlet plate, allowing water to directly cover the surface of the cleaning cylinder, thus reducing waste.

[0016] As an improvement, the water outlet plate is located behind the scraper blades along the rotation direction of the cleaning cylinder. Debris carried in by the rotating surface of the cleaning cylinder is first scraped off by the scraper blades. Stubborn debris that is difficult to scrape off is softened by water spraying and can then be scraped off by the scraper blades again, improving cleaning efficiency.

[0017] Compared with existing technologies, the advantages of this invention are as follows: During the rotation of the cleaning cylinder, the cylinder wall actively picks up various types of debris (such as sticky grease, small rice grains, or hard bone fragments) adhering to the tank wall. The cylinder support dynamically presses against the tank wall through elastic elements, automatically retracting to increase the gap (between the bottom edge of the recessed wall) when encountering large debris, preventing blockage; and tightly fitting when handling small debris, ensuring no residue. The elastic buffer structure allows for simultaneous adaptation to multiple types of debris in a single cleaning action. The rotating cleaning cylinder continuously guides the debris to the debris inlet of the arc-shaped recessed area, where the scraper precisely peels off the dirt from the cylinder surface and causes it to fall into the collection bin. This active mechanical picking and scraping method replaces water flushing, significantly reducing water consumption and avoiding chemical cleaning agent contamination, making it particularly suitable for deep tank corner areas. This cleaning device integrates garbage capture, conveying, and collection functions. It achieves full-coverage physical cleaning of the tank walls through an active rotating cleaning cylinder, solving the problems of delayed cleaning and blind spots in local spraying. It significantly improves cleaning efficiency, reduces the frequency of manual intervention, and enhances the user experience. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the cleaning device of this utility model in use when placed in a water tank;

[0019] Figure 2 This is a three-dimensional structural diagram of the cleaning device according to an embodiment of the present utility model;

[0020] Figure 3 This is a three-dimensional structural diagram of the cleaning device according to an embodiment of the present invention, omitting the top plate of the housing;

[0021] Figure 4 This is a vertical sectional view of the cleaning device according to an embodiment of the present invention, with the cutting plane perpendicular to the axis of the cleaning bucket;

[0022] Figure 5 This is a vertically sectional perspective view of the cleaning device according to an embodiment of the present utility model, with the sectional plane perpendicular to the axis of the cleaning tub;

[0023] Figure 6 This is a vertically sectional perspective view of the cleaning device according to an embodiment of the present utility model. The sectional plane is perpendicular to the axis of the cleaning tub, thus omitting the cleaning tub assembly.

[0024] Figure 7 This is a three-dimensional structural diagram of the cleaning cylinder assembly according to an embodiment of the present utility model;

[0025] Figure 8 This is a vertical sectional perspective view of the cleaning cylinder assembly according to an embodiment of the present utility model, with the sectional plane passing through the axis of the cleaning cylinder. Detailed Implementation

[0026] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0027] 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.

[0028] Figures 1-8This illustration shows a preferred embodiment of the cleaning device for cleaning a sink according to the present invention. The cleaning device a for cleaning a sink includes a housing 1, a cleaning cylinder assembly, an elastic buffer mechanism, and a water filling device. The housing 1 has a waste collection chamber 11 inside, and an arc-shaped recessed area 14 at the bottom, such as... Figure 4 and Figure 5 As shown, the recessed area 14 is located on the bottom side of the housing 1 and occupies most of the side area of ​​the housing 1.

[0029] See Figure 7 and Figure 8 The cleaning cylinder assembly includes a cylinder support 21 and a cleaning cylinder 22 rotatably connected to the cylinder support 21. The cylinder support 21 includes two parallel connecting arms 213, which are fixedly connected by a transverse connecting arm. The cleaning cylinder 22 is transversely installed between the two connecting arms 213, extending substantially horizontally. The two ends of the cleaning cylinder 22 can be rotatably connected to the connecting arms 213 via rotating components (such as bearings). Alternatively, rotating components can be omitted, meaning the ends of the cleaning cylinder 22 can be suspended and covered by the connecting arms. The first drive mechanism 31 includes a first drive motor, which is embedded inside the cleaning cylinder 22, and its output shaft is connected to a transmission shaft coaxial with the cleaning cylinder 22. When the first drive motor is energized, it drives the cleaning cylinder 22 to rotate around its own axis, using a wiping material (such as nylon bristles or a rubber scraper 142) on the outer surface of the cleaning cylinder 22 to mechanically scrape the stains on the bottom wall of the sink 4.

[0030] See Figure 4 The cleaning cylinder assembly is mounted on the housing 1 via the aforementioned cylinder bracket 21, and after installation, the cleaning cylinder 22 is positioned in the aforementioned placement recess 14. The wall of the placement recess 14 is an arc-shaped structure adapted to the peripheral wall of the cleaning cylinder 22. To facilitate the overall storage of the cleaning cylinder 22 in the placement recess 14 for aesthetic purposes, and to ensure that the cleaning cylinder 22 has sufficient peripheral wall exposed for contact and cleaning of debris, the central angle formed by the wall of the placement recess 14 relative to the center of the cleaning cylinder 22 is approximately 180°.

[0031] The overall frame of the housing 1 is formed by the left side wall 161, the right side wall 162, the bottom plate, and the top plate. The interior of the housing 1 defines the space for the garbage collection bin 11, the water storage tank 12, and the space for the installation of components such as the water pump 13. A garbage inlet 141 is provided on the wall of the recessed area 14. The garbage inlet 141 is a strip-shaped opening, and its extension direction is consistent with the extension direction of the cleaning cylinder 22. A scraper 142 (such as silicone material or a toothed rack with comb teeth) is fixed to the upper edge of the garbage inlet 141. The garbage inlet 141 is connected to the garbage collection bin 11. The cleaning cylinder 22 can be driven by the first drive motor to rotate around its own axis. During the rotation, it rolls up the garbage on the wall of the water tank 4 and moves the garbage toward the garbage inlet 141. When the garbage on the cleaning cylinder 22 moves to the garbage outlet, it can be scraped off by the scraper 142 and fall into the garbage collection bin.

[0032] In this embodiment, the cylindrical support 21 is slidably constrained to the housing 1 in such a way that it can move closer to or further away from the bottom edge of the wall of the recessed area 14. An elastic buffer mechanism, i.e., an elastic element 23, is provided between the cylindrical support 21 and the housing 1 to ensure that the cylindrical support 21 always tends to move closer to the bottom edge of the wall of the recessed area 14. When the cylindrical support 21 is subjected to an external force (such as the force applied to the cleaning cylinder 22 during the process of the cleaning cylinder 22 rolling up large, hard debris), the cylindrical support 21 can overcome the elastic force of the elastic element 23 and move away from the bottom edge of the wall of the recessed area 14 to increase the distance between them.

[0033] During the rotation of the cleaning cylinder 22 in this embodiment, the cylinder wall actively picks up various types of debris (such as sticky grease, small rice grains, or hard bone fragments) adhering to the tank wall. The cylinder support 21 dynamically presses against the tank wall via the elastic element 23. When encountering large debris, it automatically retracts to increase the gap (between the bottom edge of the wall of the recessed area 14) to prevent clogging; when handling small debris, it fits tightly to ensure no residue. The elastic buffer structure allows a single cleaning action to simultaneously accommodate multiple types of debris. The rotating cleaning cylinder 22 continuously guides the debris to the debris inlet 141 of the arc-shaped recessed area 14, where the scraper 142 precisely peels off the dirt from the cylinder surface and causes it to fall into the collection chamber. This active mechanical picking and scraping method replaces water flushing, significantly reducing water consumption and avoiding chemical cleaning agent contamination, making it particularly suitable for deep tank corner areas. This cleaning device integrates garbage capture, conveying, and collection functions. It achieves full-coverage physical cleaning of the tank walls through the active rotating cleaning cylinder 22, solving the problems of delayed cleaning and blind spots in local spraying. It significantly improves cleaning efficiency, reduces the frequency of manual intervention, and enhances the user experience.

[0034] The cylinder support 21 includes a horizontally extending limiting plate 211. The horizontal limiting plate 211 extends perpendicularly to the length direction of the cleaning cylinder 22. Limiting protrusions 163 extending toward the interior of the housing 1 are fixed to the inner surfaces of the left and right sidewalls 162. The gap between the bottom of the protrusion and the top of the waste collection compartment forms a horizontally extending limiting slide 15. The limiting plate 211 passes through a first clearance opening 171 in the wall of the recessed area 14 and is embedded in the slide, achieving horizontal sliding guidance. The movement direction of the cleaning cylinder assembly is as follows... Figure 4 The direction indicated by the arrow.

[0035] The protruding post 111 at the top of the waste collection compartment inserts into the strip groove 2110 of the limiting plate 211 (the direction of the strip groove 2110 is perpendicular to the length direction of the cleaning cylinder 22), restricting the sliding trajectory. There are two protruding posts 111 spaced apart in the left-right direction, and there are also two corresponding strip grooves 2110 on the limiting plate 211 of the cylinder support 21. The limiting plate 211 also has an upwardly extending baffle 212, and the elastic element 23 is a spring, which is sleeved between the first positioning post 112 of the protruding post 111 and the second positioning post 2121 of the baffle. Under normal conditions, the spring pushes the cylinder support 21 closer to the bottom edge of the placement recess 14; when encountering large particles of waste, the cylinder support 21 overcomes the spring force and moves away, increasing the gap to avoid blockage.

[0036] In some embodiments, the cleaning device further includes a water-filling device for adding water to the outer peripheral wall of the cleaning cylinder 22. The water-filling device includes a water storage tank 12, a water pump 13, and a water outlet plate 18. A second clearance opening 172 parallel to the length direction of the cleaning cylinder 22 is provided on the wall of the recessed area 14. The water outlet plate 18 is elongated and arranged at the second clearance opening 172. The interior of the water outlet plate 18 defines a water storage cavity arranged along its length direction. The water outlet plate 18 also has water outlet holes 181 arranged sequentially in a direction consistent with the length direction of the cleaning cylinder 22, and each water outlet hole 181 communicates with the water storage cavity. The water storage tank 12 is connected to the water storage cavity of the water outlet plate 18. The water pump 13 is located in the water flow path between the water storage tank 12 and the water outlet plate 18, and is used to deliver water from the water storage tank 12 to the water outlet plate 18. The second clearance opening 172 is embedded in the water outlet plate 18, allowing water to directly cover the surface of the cleaning cylinder 22, reducing waste.

[0037] In this embodiment, the water storage tank 12 is located below the garbage collection compartment 11. The water outlet plate 18 is located behind the scraper 142 (relative to the rotation direction of the cleaning cylinder 22), so that when the cleaning cylinder 22 rotates, it first contacts the scraper 142 to scrape off loose garbage, then the stubborn dirt is softened by water spraying, and when it rotates to the scraper 142 again, it is completely removed.

Claims

1. A cleaning device for sink cleaning for cleaning a wall of a sink (4), characterized in that include: The shell (1) defines a garbage collection compartment (11) for storing garbage. The cleaning cylinder assembly includes a cylinder support (21) and a cleaning cylinder (22) rotatably mounted on the cylinder support (21). The bottom and / or side of the housing (1) are provided with a placement recess (14) for placing the cleaning cylinder assembly. The wall structure of the placement recess (14) is an arc-shaped structure adapted to the peripheral wall of the cleaning cylinder (22). The wall of the placement recess (14) is also provided with a garbage inlet (141) connected to the garbage collection bin (11). The upper edge of the garbage inlet (141) is also provided with a scraper (142). The cleaning cylinder (22) can be driven by the first drive mechanism (31) to rotate around its own axis. During the rotation, the garbage on the wall of the water tank (4) is rolled up and moved toward the garbage inlet (141). The garbage on the cleaning cylinder (22) is scraped off by the scraper (142) and falls into the garbage collection bin. The cylindrical support (21) is slidably constrained to the housing (1) in such a way that it can move closer to or further away from the bottom edge of the wall of the placement recess (14). An elastic element (23) is provided between the cylindrical support (21) and the housing (1) to make the cylindrical support (21) always tend to move closer to the bottom edge of the wall of the placement recess (14). When the cylindrical support (21) is subjected to external force, the cylindrical support (21) can overcome the elastic force of the elastic element (23) and move away from the bottom edge of the wall of the placement recess (14) to increase the distance between the two.

2. The cleaning device for sink cleaning according to claim 1, characterized in that: The housing (1) defines a horizontally extending limiting slide (15), and the cylinder support (21) has a horizontally extending limiting plate (211) whose extension direction is perpendicular to the length direction of the cleaning cylinder (22). The limiting plate (211) is slidably constrained in the limiting slide (15).

3. The cleaning device for sink cleaning of claim 2, wherein: The limiting slide (15) is located above the garbage collection bin. The wall of the placement recess (14) is provided with a first clearance opening (171) parallel to the length direction of the cleaning cylinder (22). The limiting plate (211) passes through the first clearance opening (171) and extends into the limiting slide (15).

4. The cleaning device for sink cleaning according to claim 3, characterized in that: The housing (1) includes a left side wall (161) and a right side wall (162) that are opposite to each other. Both the left side wall (161) and the right side wall (162) have limiting protrusions (163) that extend toward the inside of the housing (1). The bottom of the limiting protrusions (163) and the top of the waste collection compartment have a gap in the vertical direction, which constitutes the limiting slide (15).

5. The cleaning device for sink cleaning of claim 4, wherein: The top of the garbage collection bin has an upwardly extending protrusion (111), and the limiting plate (211) has a strip groove (2110) with the length direction of the strip groove (2110) perpendicular to the length direction of the cleaning cylinder (22). The protrusion (111) is slidably limited in the strip groove (2110).

6. The cleaning device for sink cleaning of claim 5, wherein: The protrusion (111) passes through the strip groove (2110) and is exposed upward relative to the top of the limiting plate (211). The limiting plate (211) has an upwardly extending baffle (212) located on the side of the protrusion (111) away from the cleaning cylinder (22). The elastic element (23) is a spring located between the protrusion (111) and the limiting plate (211).

7. The cleaning device for sink cleaning according to claim 6, characterized in that: The protrusion (111) has a first positioning post (112) extending toward the limiting plate (211) for the end of the spring to be sleeved thereon, and the limiting plate (211) has a second positioning post (2121) extending toward the protrusion (111) for the other end of the spring to be sleeved thereon.

8. The cleaning device for sink cleaning according to any one of claims 1 to 7, characterized in that: It also includes a water filling device for adding water to the outer peripheral wall of the cleaning cylinder (22). The water filling device includes a water storage tank (12), a water pump (13), and a water outlet plate (18). The water outlet plate (18) is disposed on the housing (1) and has water outlet holes (181) arranged sequentially in a direction consistent with the length direction of the cleaning cylinder (22). The water storage tank (12) is connected to the water outlet plate (18). The water pump (13) is disposed in the water flow path between the water storage tank (12) and the water outlet plate (18) for sending the water pump (13) in the water storage tank (12) to the water outlet plate (18).

9. The cleaning device for sink cleaning of claim 8, wherein: The wall of the recessed area (14) is provided with a second clearance opening (172) parallel to the length direction of the cleaning cylinder (22), and the water outlet plate (18) is arranged at the second clearance opening (172).

10. The cleaning device for sink cleaning of claim 9, wherein: Along the rotation direction of the cleaning cylinder (22), the water outlet plate (18) is located behind the scraper (142).

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