Automatic water surface cleaning machine capable of preventing garbage stagnation

By employing a filtration device and vertical vibration of a lifting sleeve in the automatic water surface cleaning machine, the problem of garbage stagnation is solved, cleaning efficiency is improved, and garbage is ensured to smoothly enter the filtration device.

CN224243813UActive Publication Date: 2026-05-15HANGZHOU BUBLUE INNOVATION TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HANGZHOU BUBLUE INNOVATION TECHNOLOGY CO LTD
Filing Date
2025-05-30
Publication Date
2026-05-15

AI Technical Summary

Technical Problem

When cleaning up garbage, existing automatic water surface cleaning machines tend to get stuck at the top of the cylinder because the garbage has a certain size and shape, resulting in a decrease in cleaning efficiency.

Method used

The system employs a filtration device and a pumping device, and uses the vertical vibration of the lifting sleeve and the adjustment of motor power to prevent garbage from stagnating and ensure that garbage smoothly enters the filtration device.

Benefits of technology

It improves the cleaning efficiency of automatic water surface cleaning machines, prevents garbage from accumulating, ensures that garbage enters the filtration device smoothly, and enhances the cleaning effect.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an automatic water surface cleaning machine capable of preventing garbage stagnation in the technical field of water surface cleaning, which comprises a filter device and a water pumping device, the filter device comprises a filter screen and a filter cartridge, the filter screen is mounted on the filter cartridge, the water pumping device comprises a water pump, and the water pump is mounted on the filter cartridge. The upper edge of the filtering device is sleeved with a lifting sleeve, after the water pump is started, water enters from the filtering device, is filtered by the filtering device and then is sprayed out from a water outlet of the automatic water surface cleaning machine, the lifting sleeve shakes in the vertical direction, A is smaller than or equal to B, A is the average density of the lifting sleeve, and B is the density of the water. When the top end of the lifting sleeve is blocked by garbage, the lifting sleeve shakes in the vertical direction, and the garbage blocked at the top end of the lifting sleeve can be shaken to the water outside the filtering device or in the filtering device, so that the cleaning efficiency of the automatic water surface cleaning machine is improved.
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Description

Technical Field

[0001] This utility model relates to the technical field of water surface cleaning, and in particular to an automatic water surface cleaning machine for preventing garbage from accumulating. Background Technology

[0002] As people's living standards improve, the demand for landscape water features is also increasing. However, in recent years, floating garbage on the water surface has caused many landscape water features to become smelly and eutrophic, seriously affecting the appearance of cities and the aquatic ecological environment. Regularly cleaning up garbage on the water surface is an important and arduous task. Traditional manual cleaning methods are inefficient. In recent years, the application of automated water surface cleaning machines has become increasingly widespread, which can effectively improve cleaning efficiency and reduce labor costs.

[0003] Patent publication number CN207003398U discloses a water surface garbage collection device comprising: a cylinder having at least one opening formed on its side wall; at least one float disposed on the side wall of the cylinder to enable the cylinder to float on the water; and a pump connected to the cylinder, wherein when the cylinder floats on the water, the pump can draw water into the cylinder from the opening on the side wall of the cylinder, thereby bringing garbage into the cylinder and collecting garbage on the water surface. According to the water surface garbage collection device of this utility model, workers can easily collect garbage on the water surface without holding a net or hook. However, when the device is in use, because the garbage has a certain volume and shape, some garbage will get stuck on the cylinder when it flows with the water and stop moving forward. Instead, it will stagnate on the top of the cylinder and cannot enter the collection basket, which will cause garbage stagnation. The garbage that flows with the water to the vicinity of the cylinder will also be blocked by the garbage that is stuck on the cylinder in front and cannot enter the collection basket, which will also cause garbage stagnation. This will greatly reduce the cleaning efficiency of the automatic water surface cleaning machine. As more and more garbage stagnates, the cleaning efficiency of the automatic water surface cleaning machine will become lower and lower. Utility Model Content

[0004] In order to improve the problem that when the aforementioned device is in use, some garbage, due to its certain volume and shape, will get stuck on the cylinder when it flows with the water and stop moving forward, instead stagnating at the top of the cylinder and unable to enter the collection basket, thus causing garbage stagnation, this utility model provides an automatic water surface cleaning machine to prevent garbage stagnation.

[0005] This utility model provides an automatic water surface cleaning machine to prevent garbage from accumulating, and adopts the following technical solution:

[0006] An automatic water surface cleaning machine to prevent garbage from accumulating includes a filtration device and a pumping device. The filtration device includes a filter screen and a filter cylinder, with the filter screen installed on the filter cylinder. The pumping device includes a pump, and a lifting sleeve is fitted around the upper edge of the filtration device. After the pump is started, water enters from the filtration device, is filtered, and then sprays out from the outlet of the automatic water surface cleaning machine. The lifting sleeve 3 shakes vertically, where A ≤ B, A is the average density of the lifting sleeve, and B is the density of water.

[0007] By adopting the above technical solution, when the pump is started, the lifting sleeve shakes vertically, where A≤B, A is the average density of the lifting sleeve, and B is the density of water. When debris stagnates at the top of the lifting sleeve, the vertical shaking of the lifting sleeve will shake the debris stagnant at the top of the lifting sleeve onto the water surface outside the filter device or into the filter device. There will be no more debris stagnating at the top of the lifting sleeve. The debris shaken into the filter device will be filtered by the filter device, while the debris shaken onto the water surface outside the filter device will re-enter the filter device with the water flow and be filtered. The debris flowing with the water flow to the vicinity of the lifting sleeve will not be blocked by the debris stagnant on the lifting sleeve and will smoothly enter the filter device, thus improving the cleaning efficiency of the automatic water surface cleaning machine.

[0008] Optionally, several floating devices are connected to the outside of the filter cartridge.

[0009] By adopting the above technical solution, the automatic water surface cleaning machine can float on the water surface.

[0010] Optionally, vertical shaking includes one or more of the following:

[0011] The first scenario: the price only decreases, and the number of decreases is one or more.

[0012] The second scenario: It only rises, and the number of rises is one or more.

[0013] The third scenario: the price first drops and then rises, and the number of times the price drops and then rises is one or more.

[0014] The fourth scenario: rising first and then falling, with the number of rises followed by falls being one or more times;

[0015] The "lowering" steps include: increasing the motor power of the currently operating water pump, and lowering the lifting sleeve;

[0016] The "ascending" steps include: reducing the motor power of the currently operating water pump and raising the lifting sleeve.

[0017] By adopting the above technical solution, if the motor power of the pump currently operating in the automatic water surface cleaning machine is increased, the suction force of the pump increases, the flow rate of water through the filter device increases, the downward pressure of water on the lifting sleeve increases, and the lifting sleeve descends vertically. If the motor power of the pump currently operating in the automatic water surface cleaning machine is decreased, the suction force of the pump decreases, the flow rate of water through the filter device decreases, the downward pressure of water on the lifting sleeve decreases, and the lifting sleeve rises vertically.

[0018] Optionally, the lifting sleeve descends to a position no lower than the lowest limit position, and rises to a position no higher than the highest limit position;

[0019] The lowest limit position is the highest of the two lowest positions, namely the first and the second lowest position; the highest limit position is the lowest of the two highest positions, namely the first and the second highest position.

[0020] The lowest position one is the top position of the lifting sleeve when the motor power of the water pump is at its maximum. The highest position one is the top position of the lifting sleeve when the motor power of the water pump is zero. The lowest position two is the top position of the lifting sleeve when the lifting sleeve is blocked by the filter device of the automatic water surface cleaning machine and cannot continue to descend. The highest position two is the water surface.

[0021] By adopting the above technical solution, when the motor power of the water pump is at its maximum, the suction force of the water pump is at its maximum, the flow rate of water flowing through the filter device is at its maximum, the downward pressure of water on the lifting sleeve is at its maximum, and the position to which the lifting sleeve descends vertically is the lowest position.

[0022] The lifting sleeve is one of the components of the automatic water surface cleaning machine. During the descent, the lifting sleeve will be blocked by the filter device and will not be able to continue descending. Since the lifting sleeve is on the upper edge of the filter device, the descent of the lifting sleeve is blocked by the upper edge of the filter device. At this time, the position of the lifting sleeve is the lowest position two.

[0023] When the motor power of the water pump is at its minimum, that is, zero, the suction force of the water pump is zero, the flow rate of water through the filter device is zero, the downward pressure of water on the lifting sleeve is zero, and the position to which the lifting sleeve rises vertically is the highest position.

[0024] When the water pump is working, if the top of the lifting sleeve extends beyond the water surface, the part of the lifting sleeve extending beyond the water surface will block the garbage from entering the garbage disposal device. In order to allow the garbage to enter the filtration device smoothly, the top of the lifting sleeve should not extend beyond the water surface. Therefore, the water surface is set to the highest position two.

[0025] Optionally, a stop block is provided in the inner groove of the lifting sleeve;

[0026] When the automatic water surface cleaning machine is not in the water, the lifting sleeve is placed on the upper edge of the filter device, and the lower end of the stop block abuts against the upper edge of the filter device.

[0027] When the automatic water surface cleaning machine is in the water, the lifting sleeve rises under the buoyancy of the water, and the lower end of the baffle moves away from the upper edge of the filter device.

[0028] By adopting the above technical solution, the upper edge of the filter device can be prevented from getting stuck in the inner groove of the lifting sleeve, and the lowest position two is the position when the stop block abuts against the filter device.

[0029] The filter screen is fitted onto the filter cylinder, and the upper edge of the filter screen is the upper edge of the filter device. The lifting sleeve is fitted onto the upper edge of the filter screen.

[0030] It includes a sealed chamber and a pumping shell. The motor of the pump is installed inside the sealed chamber. The pumping shell and the filter cylinder form a pumping chamber. The bottom of the filter cylinder has an opening that communicates with the pumping chamber. The outlet is also connected to the pumping chamber.

[0031] The pump casing has outlets on both the front and rear sides, and the water flows out of the outlets on the front and rear sides in opposite directions.

[0032] There are two water pumps.

[0033] By adopting the above technical solution, the automatic water surface cleaning machine can move forward, backward, or stop in place. When the automatic water surface cleaning machine needs to move forward, the front water pump stops running, and the rear water pump runs. Water flows out from the outlet on the rear side of the water pump housing, propelling the automatic water surface cleaning machine forward. When the automatic water surface cleaning machine needs to move backward, the rear water pump stops running, and the front water pump runs. Water flows out from the outlet on the front side of the water pump housing, propelling the automatic water surface cleaning machine backward. When the automatic water surface cleaning machine needs to stop in place, the rear and front water pumps run simultaneously, and the motor power of the water pumps is equal, or the water pump touches the wall and cannot move forward, thus stopping in place to continue cleaning.

[0034] In summary, this utility model has at least one of the following beneficial effects:

[0035] When the pump starts, the lifting sleeve vibrates vertically, where A ≤ B, where A is the average density of the lifting sleeve and B is the density of water. When debris accumulates at the top of the lifting sleeve, the vertical vibration shakes the sleeve, causing the debris to be shaken onto the water surface outside or into the filter device. Debris will then no longer accumulate at the top of the lifting sleeve. The debris shaken into the filter device will be filtered, while the debris shaken onto the water surface will flow back into the filter device and be filtered again. Debris flowing towards the lifting sleeve will not be obstructed by the debris that accumulated earlier and will smoothly enter the filter device, thus improving the cleaning efficiency of the automatic water surface cleaner.

[0036] By setting a stop in the inner groove of the lifting sleeve, when the automatic water surface cleaner is not in the water, the lifting sleeve descends, and the lower end of the stop abuts against the upper edge of the filter device. When the automatic water surface cleaner is in the water, the lifting sleeve rises under the buoyancy of the water, and the lower end of the stop moves away from the upper edge of the filter device, thus preventing the upper edge of the filter device from getting stuck inside the inner groove of the lifting sleeve. Attached Figure Description

[0037] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0038] Figure 1 This is a three-dimensional sectional view of the present invention.

[0039] Figure 2 This is a schematic diagram of the front sectional view of the present invention;

[0040] Figure 3 This is a front view schematic diagram of the connection between the lifting sleeve and the filter device of this utility model;

[0041] Figure 4 This is a three-dimensional structural diagram showing the connection between the lifting sleeve and the filter device of this utility model.

[0042] In the diagram: 1. Floating device; 2. Inner tank; 3. Lifting sleeve; 4. Pumping chamber; 5. Water outlet; 6. Pump; 7. Sealed chamber; 8. Opening; 9. Filter screen; 10. Filter cylinder; 11. Pumping shell; 12. Baffle; 13. Top. Detailed Implementation

[0043] The following is in conjunction with the appendix Figure 1-4 The present invention will be described in further detail below.

[0044] Please refer to the attached diagram in the instruction manual. Figure 1 and Figure 2 This utility model provides an embodiment of an automatic water surface cleaning machine to prevent garbage stagnation, including a filtration device and a pumping device. The filtration device includes a filter screen 9 and a filter cylinder 10. The filter screen 9 is installed on the filter cylinder 10. The pumping device includes a pump 6. A lifting sleeve 3 is sleeved on the upper edge of the filtration device. After the pump 6 is started, water enters from the filtration device, is filtered by the filtration device, and is sprayed out from the water outlet 5 of the automatic water surface cleaning machine. The lifting sleeve 3 shakes vertically. A≤B, where A is the average density of the lifting sleeve 3 and B is the density of water.

[0045] Please refer to the attached diagram in the instruction manual. Figure 1 Several floating devices 1 are connected to the outside of the filter cylinder 10, allowing the automatic water surface cleaner to float on the water surface.

[0046] Please refer to the attached diagram in the instruction manual. Figure 1-4 The vertical shaking includes one or more of the following situations: the first situation: only descending, and the number of descents is one or more; the second situation: only ascending, and the number of ascendings is one or more; the third situation: descending first and then ascending, and the number of descents followed by ascendings is one or more; the fourth situation: ascending first and then descending, and the number of ascendings followed by descents is one or more. The "descending" step includes: increasing the motor power of the pump 6 currently operating in the automatic water surface cleaning machine, and the lifting sleeve 3 descends; the "ascending" step includes: decreasing the motor power of the pump 6 currently operating in the automatic water surface cleaning machine, and the lifting sleeve 3 ascends. If the motor power of the pump 6 currently operating in the automatic water surface cleaning machine is increased, the suction force of the pump 6 increases, the flow rate of water through the filter device increases, the downward pressure of water on the lifting sleeve 3 increases, and the lifting sleeve 3 descends vertically. If the motor power of the pump 6 currently operating in the automatic water surface cleaning machine is decreased, the suction force of the pump 6 decreases, the flow rate of water through the filter device decreases, the downward pressure of water on the lifting sleeve 3 decreases, and the lifting sleeve 3 rises vertically.

[0047] The lifting sleeve 3 descends to a position no lower than the lowest limit position, and rises to a position no higher than the highest limit position. The lowest limit position is the highest of the two lowest positions, and the highest limit position is the lowest of the two highest ...

[0048] The lowest position is the position of the top 13 of the lifting sleeve 3 when the motor power of the water pump 6 is at its maximum. Specifically, when the motor power of the water pump 6 is at its maximum, the suction force of the water pump 6 is at its maximum, the flow rate of water through the filter device is at its maximum, the downward pressure of the water on the lifting sleeve 3 is at its maximum, and the lifting sleeve 3 descends the most in the vertical direction. The position of the top 13 of the lifting sleeve 3 is the lowest position.

[0049] Please refer to the attached diagram in the instruction manual. Figure 2 and Figure 4 The highest position is the position of the top 13 of the lifting sleeve 3 when the motor power of the water pump 6 is zero. Specifically, when the motor power of the water pump 6 is at its minimum, that is, zero, the suction force of the water pump 6 is zero, the flow rate of water through the filter device is zero, and the downward pressure of water on the lifting sleeve 3 is zero. The position that the top 13 of the lifting sleeve 3 rises to in the vertical direction is the highest position.

[0050] Please refer to the attached diagram in the instruction manual. Figure 1 and Figure 3 The second lowest position is the position of the top 13 of the lifting sleeve 3 when it is blocked by the filter device of the automatic water surface cleaner and cannot continue to descend. Specifically, the lifting sleeve 3 is one of the components of the automatic water surface cleaner. During its descent, the lifting sleeve 3 will be blocked by the filter device and cannot continue to descend. Since the lifting sleeve 3 is fitted on the upper edge of the filter device, its descent is blocked by the upper edge of the filter device. At this time, the position of the top 13 of the lifting sleeve 3 is the second lowest position. If a stop 12 is provided in the inner groove 2 of the lifting sleeve 3, when the automatic water surface cleaner is not in the water, the lifting sleeve 3 is fitted on the upper edge of the filter device, and the lower end of the stop 12 abuts against the upper edge of the filter device. When the automatic water surface cleaner is in the water, the lifting sleeve 3 rises under the buoyancy of the water, and the lower end of the stop 12 moves away from the upper edge of the filter device. In this way, the upper edge of the filter device can be prevented from getting stuck in the inner groove 2 of the lifting sleeve 3, and the second lowest position is the position when the stop 12 abuts against the filter device.

[0051] The second highest position is the water surface. Specifically, when the water pump 6 is working, if the top 13 of the lifting sleeve 3 extends out of the water surface, the part of the lifting sleeve 3 extending out of the water surface will block the garbage from entering the garbage device. In order to allow the garbage to enter the filter device smoothly, the top 13 of the lifting sleeve 3 cannot extend out of the water surface. Therefore, the water surface is set as the second highest position.

[0052] Please refer to the instruction manual appendix. Figure 1-4 The filter screen 9 is fitted onto the filter cylinder 10, and the upper edge of the filter screen 11 is the upper edge of the filter device. The lifting sleeve 3 is fitted onto the upper edge of the filter screen 9.

[0053] Please refer to the instruction manual appendix. Figure 1-4It includes a sealed chamber 7 and a pumping shell 11. The motor part of the pump 6 is installed inside the sealed chamber 7. The pumping shell 11 and the filter cylinder 10 form a pumping chamber 4. The bottom of the filter cylinder 10 is provided with an opening 8, which is connected to the pumping chamber 4, and the outlet 5 is connected to the pumping chamber 4.

[0054] Please refer to the attached diagram in the instruction manual. Figure 1 and Figure 2 The water-collecting shell 11 has water outlets 5 on both the front and rear sides, with the water flowing out of the outlets 5 on the front and rear sides in opposite directions. Water pumps 6 are also installed on both the front and rear sides of the water-collecting shell 11. This allows the automatic water surface cleaning machine to move forward, backward, or stop in place. When the automatic water surface cleaning machine needs to move forward, the rear water pump 6 operates, water flows out of the outlet 5 on the rear side of the water-collecting shell 11, and the front water pump 6 stops, pushing the automatic water surface cleaning machine forward. When the automatic water surface cleaning machine needs to move backward, the front water pump 6 operates, water flows out of the outlet 5 on the front side of the water-collecting shell 11, and the rear water pump 6 stops, pushing the automatic water surface cleaning machine backward. When the automatic water surface cleaning machine needs to stop in place, the rear and front water pumps 6 operate simultaneously, with the motor power of the water pumps 6 being equal, or the water pumps stop in place when they encounter a wall and cannot move forward, continuing to clean.

[0055] Working principle: When the water pump 6 is started, the floating device 1 causes the automatic water surface cleaner to float on the water surface. The water pump 6 draws water from inside the filter screen 9 to outside the filter screen 9, and the garbage on the water surface is carried into the filter screen 9, thus collecting the garbage on the water surface. The water pump 6 drains the water that has entered the filter device, so that water continuously flows into the filter device, and the water entering the filter device is continuously drained by the water pump 6. The garbage floating on the water surface near the filter device flows into the filter device with the water flow and is intercepted by the filter screen 9. After the filter screen 9 collects the garbage, it can be cleaned.

[0056] As the water around the automatic water surface cleaner flows to the filter screen 9, the water exerts downward pressure on the lifting sleeve 3, causing the lifting sleeve 3 to descend. Therefore, the top 13 of the lifting sleeve 3 is lower than the water surface. In this way, the top 13 does not block the garbage from entering the lifting sleeve 3, which is conducive to the garbage entering the lifting sleeve 3 smoothly.

[0057] At the same time, the water pump 6 starts, causing the lifting sleeve 3 to shake vertically. A≤B, where A is the average density of the lifting sleeve 3 and B is the density of water. When debris stagnates at the top 13 of the lifting sleeve 3, the vertical shaking of the lifting sleeve 3 will shake the debris stagnant at the top 13 of the lifting sleeve 3 onto the water surface outside the filter device or into the filter device. There will be no more debris stagnating at the top 13 of the lifting sleeve 3. The debris flowing with the water to the vicinity of the lifting sleeve 3 will not be blocked by the debris stagnating on the lifting sleeve 3 in front, and will smoothly enter the filter device, improving the cleaning efficiency of the automatic water surface cleaning machine.

[0058] When the water pump 6 is not started, the top 13 of the lifting sleeve 3 is above or level with the water surface. In this way, the top 13 of the lifting sleeve 3 can prevent the debris in the filter screen 9 from overflowing from the opening of the filter screen 9.

[0059] The above are all preferred embodiments of this utility model, and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape and principle of this utility model should be covered within the scope of protection of this utility model.

Claims

1. An automatic water surface cleaning machine for preventing garbage stagnation, comprising a filtration device and a pumping device, wherein the filtration device comprises a filter screen (9) and a filter cylinder (10), the filter screen (9) being mounted on the filter cylinder (10), and the pumping device comprising a pump (6), characterized in that: The upper edge of the filter device is fitted with a lifting sleeve (3). When the water pump (6) is started, water enters from the filter device, is filtered by the filter device, and is sprayed out from the outlet (5) of the automatic water surface cleaning machine. The lifting sleeve (3) shakes in the vertical direction. A≤B, where A is the average density of the lifting sleeve (3) and B is the density of water.

2. The automatic water surface cleaning machine for preventing garbage stagnation according to claim 1, characterized in that: Several floating devices (1) are connected to the outside of the filter cylinder (10).

3. The automatic water surface cleaning machine for preventing garbage stagnation according to claim 1, characterized in that: The vertical shaking includes one or more of the following situations; The first scenario: the price only decreases, and the number of decreases is one or more. The second scenario: It only rises, and the number of rises is one or more. The third scenario: the price first drops and then rises, and the number of times the price drops and then rises is one or more. The fourth scenario: rising first and then falling, with the number of rises followed by falls being one or more times; The "lowering" step includes: increasing the motor power of the currently operating water pump (6), and lowering the lifting sleeve (3). The "rising" step includes: reducing the motor power of the currently operating pump (6) and raising the lifting sleeve (3).

4. The automatic water surface cleaning machine for preventing garbage stagnation according to claim 3, characterized in that: The lifting sleeve (3) descends to a position no lower than the lowest limit position, and the lifting sleeve (3) rises to a position no higher than the highest limit position; The lowest limit position is the highest of the two lowest positions, lowest position one and lowest position two. The highest limit position is the lowest position between the highest position one and the highest position two; The lowest position one is the position of the top (13) of the lifting sleeve (3) when the motor power of the water pump (6) is at its maximum; the highest position one is the position of the top (13) of the lifting sleeve (3) when the motor power of the water pump (6) is zero; the lowest position two is the position of the top (13) of the lifting sleeve (3) when the lifting sleeve (3) is blocked by the filter device of the automatic water surface cleaning machine and cannot continue to descend; and the highest position two is the water surface.

5. The automatic water surface cleaning machine for preventing garbage stagnation according to claim 1, characterized in that: A stop (12) is provided in the inner groove (2) of the lifting sleeve (3); When the automatic water surface cleaning machine is not in the water, the lifting sleeve (3) is fitted on the upper edge of the filter device, and the lower end of the stop block (12) abuts against the upper edge of the filter device; When the automatic water surface cleaning machine is in the water, the lifting sleeve (3) rises under the buoyancy of the water, and the lower end of the stop block (12) moves away from the upper edge of the filter device.

6. The automatic water surface cleaning machine for preventing garbage stagnation according to claim 1, characterized in that: The filter screen (9) is fitted onto the filter cylinder (10), and the upper edge of the filter screen (9) is the upper edge of the filter device. The lifting sleeve (3) is fitted onto the upper edge of the filter screen (9).

7. The automatic water surface cleaning machine for preventing garbage stagnation according to claim 1, characterized in that: It includes a sealed chamber (7) and a pumping shell (11). The motor part of the pump (6) is installed inside the sealed chamber (7). The pumping shell (11) and the filter cylinder (10) form a pumping chamber (4). The bottom of the filter cylinder (10) is provided with an opening (8) and the opening (8) is connected to the pumping chamber (4). The water outlet (5) is connected to the pumping chamber (4).

8. The automatic water surface cleaning machine for preventing garbage stagnation according to claim 7, characterized in that: The pumping shell (11) is provided with water outlets (5) on both the front and rear sides, and the water flowing out of the water outlets (5) on the front and rear sides flows in opposite directions.