Sink cleaning device

Abstract

This utility model relates to a sink cleaning device for cleaning the walls of a sink. It includes: a housing with an internally defined waste collection bin for storing waste; and a cleaning cylinder assembly, including a cylinder support and a cleaning cylinder rotatably mounted on the support. The bottom and / or sides of the housing have recessed areas for housing the cleaning cylinder assembly. A waste inlet, communicating with the waste collection bin, is also provided on the wall of the recessed area. The upper edge of the waste inlet is positioned forward relative to the lower edge, and a scraper is provided at the upper edge of the waste inlet. The cleaning cylinder is driven by a first driving mechanism to rotate around its own axis. During rotation, it picks up waste from the sink wall and moves it towards the waste inlet. The waste on the cleaning cylinder is scraped off by the scraper and falls into the waste collection bin. The advantage is that it can actively clean the waste in the sink.

Description

Technical Field

[0001] This utility model relates to the field of sink cleaning technology, and in particular to a sink cleaning device. 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 contamination. In recent years, although a few 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. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a water tank cleaning device that can actively clean up the garbage in the water tank, 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 as follows: a cleaning device for a water tank, used for cleaning the walls of a water tank, characterized in that it includes:

[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 accommodating 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. The upper edge of the garbage inlet is positioned forward relative to the lower edge, and 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] Driven by a first drive mechanism, the rotating cleaning drum actively adheres to the tank wall and rotates, utilizing its surface structure (such as bristles or friction) to actively pick up and carry away oil, scale, and other debris adhering to the tank wall (including deep sections and corners). This completely changes the reliance on manual scrubbing or passive soaking, significantly improving cleaning efficiency and thoroughness. The rotation direction of the cleaning drum is coordinated with a specially designed waste inlet (located at the front of the upper edge), continuously and directionally conveying the picked-up waste to the inlet area. Scrapers at the inlet precisely scrape away the debris adhering to its surface during the drum's rotation, allowing it to fall directly into the waste collection bin below under gravity. This process achieves continuous and automatic transfer of waste from the tank wall to the collection bin. The entire cleaning process relies primarily on mechanical physical actions (rotation, winding, and scraping), eliminating or significantly reducing the use of chemical cleaning agents, fundamentally avoiding the risks of chemical corrosion of the tank surface and water pollution.

[0008] To fit the cleaning bin and effectively hold the waste on its surface, the waste inlet is a strip-shaped opening extending along the length of the cleaning bin. This strip-shaped opening design expands the waste receiving area, accommodating the entire length of the cleaning bin; it also improves the passage of large-volume waste, reducing blockages.

[0009] As an improvement, the scraper blade has protruding teeth arranged sequentially along its length. This toothed design enhances scraping force, effectively removing tangled debris; on the other hand, it also reduces the contact area, thus lessening frictional resistance.

[0010] To further improve cleaning effectiveness and facilitate the removal of dirt from the surface of the cleaning cylinder, a water-filling device is 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 of the cleaning cylinder. The water tank is connected to the water outlet plate, and the water pump is located in the water flow path between the water tank and the water outlet plate to pump water from the water tank to the water outlet plate. This design wets the cleaning cylinder, reduces friction noise, softens scale and dirt, and improves cleaning efficiency.

[0011] 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.

[0012] 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.

[0013] To remove wastewater from the cleaning cylinder, the housing or cylinder support has a scraper blade protruding into the recessed area. The scraper blade extends along the length of the cleaning cylinder and is located behind the scraper strip and in front of the water outlet plate along the rotation direction of the cleaning cylinder. This design allows for the removal of excess wastewater from the surface of the cleaning cylinder by the scraper blade, followed by the re-spraying of clean water, achieving a "scraping debris → scraping (waste) water → adding (clean) water" process, thus optimizing the cleaning process.

[0014] To simplify the wiping structure of the cleaning device, the wiping blade is formed on the cylinder support and arranged at the location of the second clearance opening in the housing.

[0015] In order to achieve a reasonable spatial structure design, the water storage tank is located below the waste collection compartment.

[0016] As an improvement, the water storage tank and the waste collection bin are designed as a single unit, with one side of the water storage tank extending laterally relative to the waste collection bin and exposed at the top. A connecting pipe is provided on the exposed portion of the water storage tank, extending into the water storage tank and downwards to the bottom. This integrated design reduces seams and prevents leakage; the exposed side of the water storage tank also facilitates direct water filling without disassembly.

[0017] Compared with existing technologies, the advantages of this invention are as follows: The rotating cleaning drum, driven by the first drive mechanism, can actively adhere to the tank wall and rotate. Utilizing its surface structure (such as bristles or friction), it actively picks up and carries away oil, scale, and other debris adhering to the tank wall (including deep tanks and corners), completely changing the current situation of relying on manual scrubbing or passive soaking, and significantly improving cleaning efficiency and thoroughness. Specifically, the rotation direction of the cleaning drum is coordinated with a specially designed waste inlet (front of the upper edge), continuously and directionally conveying the picked-up waste to the waste inlet area. The scraper at the inlet precisely scrapes away the debris adhering to its surface during the rotation of the cleaning drum, allowing it to fall directly into the waste collection bin below under gravity. This process achieves continuous and automatic transfer of waste from the tank wall to the collection bin. The entire cleaning process of the cleaning device mainly relies on mechanical physical action (rotation, rolling, scraping), eliminating or significantly reducing the use of chemical cleaning agents, fundamentally avoiding the risk of chemical agents corroding the tank surface and polluting the water. 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 1-8 This 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 chamber 11, the water storage tank 12, and 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. Because the wall of the recessed area 14 is arc-shaped, the upper edge of the garbage inlet 141 is positioned forward relative to the lower edge, that is, the upper edge and the lower edge of the garbage inlet 141 are misaligned in the vertical direction. A scraper 142 (which can be made of silicone or a toothed strip) is provided on the upper edge of the garbage inlet 141, and the garbage inlet 141 connects to the garbage collection chamber 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 second clearance opening 172 and the first clearance opening 171 can be the same opening. 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, and the water pump 13 is provided in the water flow path between the water storage tank 12 and the water outlet plate 18 for pumping 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 housing 1 or the cylindrical support 21 also has a wiper blade 214 protruding into the recess 14 corresponding to the location of the mounting recess 14. The wiper blade 214 extends along the length of the cleaning cylinder 22. Specifically, along the rotation direction of the cleaning cylinder 22, the wiper blade 214 is located behind the wiper strip 142 and in front of the water outlet plate 18. Figure 4As shown, the squeegee 214 is formed on the cylinder support 21 and arranged at the location of the clearance opening in the housing 1. The above design can remove excess sewage water from the surface of the cleaning cylinder 22 by the squeegee 214 and re-spray clean water, realizing the process of "scraping garbage → scraping (sewage) water → adding (clean) water to moisten", thus optimizing the cleaning process.

[0038] 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.

[0039] In this embodiment, the water storage tank 12 and the garbage collection bin 11 are designed as a single unit. One side of the water storage tank 12 extends to the side relative to the garbage collection bin 11 and is exposed at the top. A connecting pipe 121 is provided on the exposed part of the water storage tank 12. The connecting pipe 121 extends into the water storage tank 12 and downwards to the bottom of the water storage tank 12. The connecting pipe 121 is connected to the water pump 13 through a flexible pipe. The integrated structure design of the water storage tank 12 and the garbage collection bin 11 reduces seams and prevents water leakage. The exposed side design of the water storage tank 12 also facilitates direct water filling without disassembly.

Claims

1. Sink cleaning device 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 (22) 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 mounting recess (14) for mounting the cleaning cylinder (22) assembly. The wall structure of the mounting recess (14) is an arc-shaped structure adapted to the peripheral wall of the cleaning cylinder (22). A garbage inlet (141) communicating with the garbage collection bin (11) is also provided on the wall of the mounting recess (14). The upper edge of the garbage inlet (141) is positioned forward relative to the lower edge, and a scraper (142) is provided at the upper edge of the garbage inlet (141). 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.

2. The sink cleaning device of claim 1, wherein: The waste inlet (141) is a strip-shaped opening that extends along the length of the cleaning cylinder (22).

3. The sink cleaning apparatus of claim 2, wherein: The scraper (142) has protruding teeth arranged sequentially along the length of the scraper (142).

4. The sink cleaning apparatus according to any one of claims 1 to 3, 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).

5. The sink cleaning device of claim 4, 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).

6. The sink cleaning device of claim 4, wherein: Along the rotation direction of the cleaning cylinder (22), the water outlet plate (18) is located behind the scraper (142).

7. The sink cleaning device of claim 5, wherein: The housing (1) or the tube support (21) also has a squeegee (214) protruding into the placement recess (14) at the location corresponding to the placement recess (14). The squeegee (214) extends along the length of the cleaning tube (22). Along the rotation direction of the cleaning tube (22), the squeegee (214) is located behind the scraper (142) and in front of the water outlet plate (18).

8. The sink cleaning device of claim 7, wherein: The wiper blade (214) is formed on the cylinder support (21) and is arranged at the location of the second clearance opening (172) of the housing (1).

9. The sink cleaning apparatus of claim 4, wherein: The water storage tank (12) is located below the garbage collection bin (11).

10. The sink cleaning device of claim 9, wherein: The water storage tank (12) is integrally designed with the garbage collection bin (11), and one side of the water storage tank (12) extends to the side part relative to the garbage collection bin (11) and is exposed at the top part, and a connecting pipe (121) is arranged on the exposed part of the water storage tank (12), the connecting pipe (121) extends into the water storage tank (12) and extends downward to the bottom part of the water storage tank (12).

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