Cleaning devices for sink cleaning

Abstract

This utility model relates to a cleaning device for cleaning sinks, comprising: a housing defining a waste collection bin for storing waste; a cleaning cylinder assembly including a cylinder support and a cleaning cylinder rotatably mounted on the cylinder support; a recessed area for accommodating the cleaning cylinder assembly being formed on the bottom and / or side of the housing; the wall of the recessed area being an arc-shaped structure adapted to the peripheral wall of the cleaning cylinder; the cylinder support being slidably constrained on the housing in a manner that allows it to move closer to or further away from the bottom edge of the wall of the recessed area; the housing also having a motion mechanism that allows the cylinder support and the cleaning cylinder mounted on the cylinder support to move closer to or further away from the bottom edge of the wall of the recessed area. 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 during 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 on 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. The housing is also provided with a motion mechanism that can drive the cylindrical support and the cleaning cylinder provided on the cylindrical support to move closer to or further away from the bottom edge of the wall of the placement recess.

[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 plate and the limiting slide cooperate to constrain the cylinder support to move only in the horizontal direction, ensuring that the distance between the cleaning cylinder and the tank wall is precisely controllable.

[0009] As an improvement, the limiting slide is located above the waste collection bin, and 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 extends into the limiting slide through the first clearance opening. The first clearance opening provides sliding space, and the limiting plate extends into the slide through the opening, simplifying the structural layout and improving reliability.

[0010] To simplify the structure of the limiting slide, the housing includes a left side wall and a right side wall facing each other. Both the left and right side walls have limiting protrusions extending inwards from the housing. The bottom of each limiting protrusion has a gap in the vertical direction with the top of the waste collection bin; this gap constitutes the limiting slide. Utilizing the gap between the limiting protrusions on the housing side walls and the top of the collection bin to form the slide reduces additional parts and lowers manufacturing costs.

[0011] As an improvement, the top of the waste collection compartment 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 within the strip-shaped groove. The protrusion and the strip-shaped groove form a secondary guide, enhancing sliding stability and ensuring uniform pressure distribution in the cleaning cylinder.

[0012] As a preferred embodiment of the motion mechanism, the motion mechanism includes a first drive motor and a screw-slider assembly drivenly connected to the output shaft of the first drive motor. The first drive motor is fixed relative to the waste collection bin. The screw-slider assembly includes a first screw and a first slider. The first screw extends in the front-to-back direction and is drivenly connected to the output shaft of the first drive motor. The first slider is fixedly connected to the cylinder support. The screw-slider mechanism converts the motor rotation into linear motion, realizing micro-adjustment and adapting to the conveying of waste materials of different particle sizes.

[0013] As another preferred embodiment of the motion mechanism, the motion mechanism includes a second drive motor, a cam transmission assembly, and a second elastic element. The second elastic element acts on the cylindrical support and causes the cylindrical support to always tend to move closer to the bottom edge of the wall of the placement recess. The second drive motor is fixed relative to the waste collection bin. The cam transmission assembly includes a cam and an auxiliary mounting bracket disposed on the cylindrical support. The cam is connected to the output shaft of the second drive motor and can be driven to rotate by the second drive motor. During the rotation of the cam, the cam can act on the auxiliary mounting bracket, thereby causing the cylindrical support to overcome the elastic force of the second elastic element and move away from the bottom edge of the wall of the placement recess.

[0014] As another preferred embodiment of the motion mechanism, the motion mechanism includes a third drive motor and a linkage transmission assembly. The linkage transmission assembly includes a rocker arm and a first connecting rod. The third drive motor is fixed relative to the waste collection bin. The first end of the rocker arm is connected to the output shaft of the third drive motor and can rotate under the drive of the third drive motor. The second end of the rocker arm is rotatably connected to the first end of the first connecting rod, and the second end of the first connecting rod is rotatably connected to the cylinder support. Through the design of the linkage transmission assembly described above, the corresponding elastic element can be eliminated, and the reciprocating movement of the cylinder support can be achieved through the linkage transmission assembly.

[0015] As another preferred embodiment of the motion mechanism, the motion mechanism includes a fourth drive motor, a winch assembly, and a fourth elastic element. The fourth drive motor is fixed relative to the waste collection bin. The fourth elastic element acts on the cylinder support, causing the cylinder support to always tend to move away from the bottom edge of the wall of the placement recess. The winch assembly includes a winch driven to rotate by the fourth drive motor and a pull rope wound around the winch, one end of which is connected to the cylinder support. The winch and pull rope structure occupies little space, and the fourth elastic element provides a restoring force, making it suitable for small sink cleaning devices.

[0016] 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.

[0017] 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.

[0018] 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.

[0019] Compared with existing technologies, the advantages of this utility model are as follows: The cleaning cylinder of this utility model is driven by a drive mechanism to rotate, and its surface actively picks up various types of garbage materials on the wall of the water tank. The scraper at the inlet promptly scrapes off the garbage, ensuring that it falls smoothly into the garbage collection bin and avoiding blockage or manual sorting. At the same time, the cylinder support can be adjusted in position through a motion mechanism. On the one hand, it can change the distance between the cylinder support and the bottom edge of the wall of the recessed area relative to the cylinder support and the cleaning cylinder on the cylinder support. This allows all particles, regardless of size or texture (such as sticky rice grains or hard bone fragments), to be effectively adsorbed and moved towards the garbage inlet. On the other hand, it also allows the cleaning cylinder to flexibly approach or move away from the water tank wall, thereby adapting to deep tanks and corner areas and improving cleaning coverage. This solution achieves active and integrated cleaning, greatly improving efficiency, reducing water consumption and the risk of chemical pollution, and is convenient for users to operate. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the cleaning device of Embodiment 1 of the present invention in use when placed in a water tank;

[0021] Figure 2 This is a three-dimensional structural diagram of the cleaning device according to Embodiment 1 of this utility model;

[0022] Figure 3 This is a three-dimensional structural diagram of the cleaning device of Embodiment 1 of this utility model after omitting the top plate of the housing;

[0023] Figure 4 This is a vertical sectional view of the cleaning device according to Embodiment 1 of this utility model, with the cutting plane perpendicular to the axis of the cleaning bucket;

[0024] Figure 5 This is a three-dimensional structural diagram of the cleaning cylinder assembly according to Embodiment 1 of this utility model;

[0025] Figure 6 This is a vertical sectional perspective view of the cleaning cylinder assembly of Embodiment 1 of this utility model, with the sectional plane passing through the axis of the cleaning cylinder.

[0026] Figure 7 This is a three-dimensional structural diagram of the cleaning device of Embodiment 2 of this utility model after omitting the top plate of the housing;

[0027] Figure 8 This is a vertically sectional perspective view of the cleaning device of Embodiment 2 of this utility model, with the sectional plane perpendicular to the axis of the cleaning bucket;

[0028] Figure 9 This is a three-dimensional structural diagram of the cleaning device of Embodiment 3 of this utility model after omitting the top plate of the housing;

[0029] Figure 10 This is a three-dimensional structural diagram of the cleaning device of Embodiment 4 of this utility model after omitting the top plate of the housing; Detailed Implementation

[0030] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0031] 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.

[0032] Example 1

[0033] Figures 1-6 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 2 and Figure 4 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.

[0034] See Figure 5 and Figure 6The 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 fixed by a transverse connecting arm. The cleaning cylinder 22 is transversely mounted 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 includes a main drive motor 31, 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 main drive motor 31 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.

[0035] See Figure 5 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°.

[0036] 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 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 main drive motor 31 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.

[0037] In this embodiment, the cylindrical support 21 is slidably constrained to the housing 1 in a manner that allows it to move closer to or further away from the bottom edge of the wall of the recessed area 14. A moving mechanism is provided between the cylindrical support 21 and the housing 1 to allow the cylindrical support 21 to move closer to or further away from the bottom edge of the wall of the recessed area 14. During operation, the cleaning cylinder 22, driven by the moving mechanism, can move closer to or further away from the bottom edge of the wall of the recessed area 14. This effectively picks up even larger, hard debris, preventing clogging.

[0038] 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.

[0039] The protruding post 111 on the top of the garbage collection compartment is inserted 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) to limit the sliding trajectory. There are two protruding posts 111 spaced apart in the left and right direction, and there are also two corresponding strip grooves 2110 on the limiting plate 211 of the cylinder support 21.

[0040] 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, and the water flow directly covers the surface of the cleaning cylinder 22, reducing waste. In this embodiment, the water storage tank 12 is located on one side of 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.

[0041] The motion device in this embodiment includes a first drive motor 51 and a screw-slider assembly that is driven by the output shaft of the first drive motor 51. The first drive motor 51 is fixed relative to the waste collection bin, specifically fixed to the top of the waste collection bin. The screw-slider assembly includes a first screw 511 and a first slider 512. The first screw 511 extends in the front-to-back direction and is driven by the output shaft of the first drive motor 51. Under the drive of the first drive motor 51, the first screw 511 can rotate around its own axis. The first slider 512 is fixedly connected to the cylinder support 21, specifically by screws or adhesive to the top of the limiting plate 211 of the cylinder support 21. The screw and slider are threadedly engaged, and the screw-slider mechanism converts the rotation of the first drive motor 51 into linear motion, realizing micro-adjustment and adapting to the conveying of waste materials of different particle sizes.

[0042] In this embodiment, the cleaning cylinder 22 of the cleaning device is driven to rotate, and its surface actively picks up various types of garbage materials on the wall of the water tank 4. The scraper 142 at the inlet promptly scrapes off the garbage, ensuring that it falls smoothly into the garbage collection bin 11, avoiding blockage or manual sorting. At the same time, the cylinder support 21 slides and adjusts its position through a motion mechanism. On the one hand, it can change the distance between the cylinder support 21 and the cleaning cylinder 22 mounted on the cylinder support 21 relative to the bottom edge of the wall of the placement recess 14. This allows all particles, regardless of size or texture (such as sticky rice grains or hard bone fragments), to be effectively adsorbed and moved towards the garbage inlet 141. On the other hand, it also allows the cleaning cylinder 22 to flexibly approach or move away from the wall of the water tank 4, thereby adapting to deep tanks and corner areas and improving cleaning coverage. This solution achieves active, integrated cleaning, significantly improving efficiency, reducing water consumption and the risk of chemical pollution, and is convenient for users to operate.

[0043] Example 2

[0044] Figure 7 and Figure 8This illustration shows another preferred embodiment of the cleaning device for cleaning a sink according to the present invention. The difference between this embodiment and Embodiment 1 lies in the movement mechanism used to move the cylinder support 21 and the cleaning cylinder 22 mounted on the cylinder support 21 toward or away from the bottom edge of the wall of the recessed area 14. Specifically, the movement mechanism in this embodiment includes a second drive motor 52, a cam 522 transmission assembly, and a second elastic element 521. The second elastic element 521 is a spring, and there are two springs arranged sequentially in the left-right direction. The springs are arranged between the cylinder support 21 and the housing 1. Under the action of the second elastic element 521, the cylinder support 21 and the cleaning cylinder 22 mounted on the cylinder support 21 always tend to move toward the bottom edge of the wall of the recessed area 14. The second drive motor 52 is fixed relative to the waste collection bin, specifically by screws to the top of the waste collection bin. The cam 522 transmission assembly includes a cam 522 and an auxiliary mounting bracket 523 mounted on the cylinder support 21. The cam 522 is connected to the output shaft of the second drive motor 52 and can be driven to rotate by the second drive motor 52. The auxiliary mounting bracket 523 is fixed to the top surface of the limiting plate 211 of the cylindrical support 21. The auxiliary mounting bracket 523 has two mating plates facing each other. When the cam 522 is driven to rotate by the second drive motor 52, the cam 522 can act on the corresponding mating plate of the auxiliary mounting bracket 523, thereby causing the cylindrical support 21 to overcome the elastic force of the second elastic member 521 and move away from the bottom edge of the wall of the recessed area 14. As the cam 522 continues to rotate or rotates in the opposite direction to release the force applied to the corresponding mating plate, under the action of the second elastic member 521, the cylindrical support 21 and the cleaning cylinder 22 provided on the cylindrical support 21 move closer to the bottom edge of the wall of the recessed area 14.

[0045] Example 3

[0046] Figure 9 This illustration shows another preferred embodiment of the cleaning device for cleaning sinks according to the present invention. The difference between this embodiment and Embodiment 1 lies in the movement mechanism used to move the cylinder support 21 and the cleaning cylinder 22 mounted on the cylinder support 21 closer to or further away from the bottom edge of the wall of the recessed area 14. Specifically, the movement mechanism includes a third drive motor 53 and a linkage transmission assembly. The third drive motor 53 is fixed relative to the waste collection bin, specifically by screws to the top of the waste collection bin. The linkage transmission assembly includes a rocker arm 531 and a first connecting rod 532. The first end of the rocker arm 531 is connected to the output shaft of the third drive motor 53 and can rotate under the drive of the third drive motor 53. The second end of the rocker arm 531 is rotatably connected to the first end of the first connecting rod 532, and the second end of the first connecting rod 532 is rotatably connected to the cylinder support 21. Through the design of the above-described linkage transmission assembly, the corresponding elastic element can be omitted, and the reciprocating movement of the cylinder support 21 can be achieved through the linkage transmission assembly.

[0047] Example 3

[0048] Figure 10 This illustration shows another preferred embodiment of the cleaning device for cleaning a sink according to the present invention. The difference between this embodiment and Embodiment 1 lies in the movement mechanism used to move the cylinder support 21 and the cleaning cylinder 22 mounted on the cylinder support 21 closer to or further away from the bottom edge of the wall of the recessed area 14. Specifically, the movement mechanism includes a fourth drive motor 54, a winch 541 assembly, and a fourth elastic element 543. The second elastic element 521 is a spring, of which there are two, arranged sequentially in the left-right direction. The springs are arranged between the cylinder support 21 and the housing 1. Under the action of the second elastic element 521, the cylinder support 21 and the cleaning cylinder 22 mounted on the cylinder support 21 always tend to move away from the bottom edge of the wall of the recessed area 14. The fourth drive motor 54 is fixed relative to the waste collection bin, specifically by screws to the top of the waste collection bin. The winch 541 assembly includes a winch 541 driven to rotate by the fourth drive motor 54 and a pull rope 542 wound around the winch 541, one end of which is connected to the cylinder support 21. The winch 541 and pull rope 542 structure occupy little space, and the fourth elastic element 543 can provide a restoring force, making it suitable for small sink 4 cleaning devices.

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 a first drive mechanism 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 on 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). The housing (1) is also provided with a motion mechanism that can drive the cylindrical support (21) and the cleaning cylinder (22) provided on the cylindrical support (21) to move closer to or further away from the bottom edge of the wall of the placement recess (14).

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 according to any one of claims 1 to 5, characterized in that: The motion mechanism includes a first drive motor (51) and a lead screw and slider assembly that is drivenly connected to the output shaft of the first drive motor (51). The first drive motor (51) is fixed relative to the waste collection bin. The lead screw and slider assembly includes a first lead screw (511) and a first slider (512). The first lead screw (511) extends in the front-back direction and is drivenly connected to the output shaft of the first drive motor (51). The first slider (512) is fixedly connected to the cylinder support (21).

7. The cleaning device for sink cleaning according to any one of claims 1 to 5, characterized in that: The motion mechanism includes a second drive motor (52), a cam (522) transmission assembly, and a second elastic element (521). The second elastic element (521) acts on the cylindrical support (21) and makes the cylindrical support (21) always tend to move closer to the bottom edge of the wall of the placement recess (14). The second drive motor (52) is fixed relative to the garbage collection bin. The cam (522) transmission assembly includes a cam (522) and an auxiliary mounting bracket (523) provided on the cylindrical support (21). The cam (522) is connected to the output shaft of the second drive motor (52) and can be driven to rotate by the second drive motor (52). During the rotation of the cam (522), the cam (522) can act on the auxiliary mounting bracket (523), thereby causing the cylindrical support (21) to overcome the elastic force of the second elastic element (521) and move away from the bottom edge of the wall of the placement recess (14).

8. The cleaning device for sink cleaning according to any one of claims 1 to 5, characterized in that: The motion mechanism includes a third drive motor (53) and a linkage transmission assembly. The linkage transmission assembly includes a rocker arm (531) and a first connecting rod (532). The third drive motor (53) is fixed relative to the garbage collection bin. The first end of the rocker arm (531) is connected to the output shaft of the third drive motor (53) and can rotate under the drive of the third drive motor (53). The second end of the rocker arm (531) is rotatably connected to the first end of the first connecting rod (532). The second end of the first connecting rod (532) is rotatably connected to the cylinder support (21).

9. The cleaning device for sink cleaning according to any one of claims 1 to 5, characterized in that: The motion mechanism includes a fourth drive motor (54), a winch (541) assembly, and a fourth elastic element (543). The fourth drive motor (54) is fixed relative to the waste collection bin. The fourth elastic element (543) acts on the cylinder support (21) and causes the cylinder support (21) to always tend to move away from the bottom edge of the wall of the placement recess (14). The winch (541) assembly includes a winch (541) driven to rotate by the fourth drive motor (54) and a pull rope (542) wound around the winch (541). One end of the pull rope (542) is connected to the cylinder support (21).

10. The cleaning device for sink cleaning according to any one of claims 1 to 5, 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).

11. The cleaning device for sink cleaning of claim 10, 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).

12. The cleaning device for sink cleaning of claim 11, 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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