Automatic water surface cleaning machine considering cleanliness and filtering speed
By employing a combination of primary and secondary filtration units in the automatic pool cleaner, large and small particles are processed separately, solving the problems of low cleanliness or clogging caused by the filter mesh design. This achieves a balance between cleanliness and filtration speed, reducing the user's operational burden.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-23
- Publication Date
- 2026-04-03
AI Technical Summary
Existing automatic pool cleaners have filter mesh designs that result in low cleanliness or clogging, making it impossible to simultaneously achieve both cleanliness and filtration speed.
The system employs a combination design of primary and secondary filtration units, each with filter holes of different sizes. Wastewater first passes through the primary filtration unit and then through the secondary filtration unit. The primary filtration unit prevents large particles from clogging the system, while the secondary filtration unit filters out small particles, achieving rapid and effective filtration.
It achieves simultaneous improvement in cleanliness and filtration speed, reduces the physical burden on users, and enhances the practicality of the cleaning machine.
Smart Images

Figure CN224078790U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of automatic water surface cleaning machines, and in particular to an automatic water surface cleaning machine that balances cleanliness and filtration speed. Background Technology
[0002] An automatic pool cleaner is a pool cleaning device that can replace manual labor. To collect debris from the pool, the robot typically has an internal filtration system to filter and collect debris such as leaves and hair. The filtration system generally includes a filter box with a filter screen. When the robot operates, the internal equipment creates negative pressure, drawing water in through the inlet. After filtering out impurities, the water exits through the filter holes. Debris accumulates inside the filtration system and needs to be cleaned regularly. The filtration system filters the water entering the pool, and the clean water then enters the pool.
[0003] Patent publication number CN221815511U discloses a filtration device for a fully automatic swimming pool cleaner and a fully automatic swimming pool cleaner, including a box body with a bottom plate hinged to one side. The box body includes a frame body, which is hinged to the bottom plate. The other side of the bottom plate is fastened to the other side of the frame body. A filter screen is installed inside the frame body. A fastener is connected to the other side of the bottom plate. A fastening hole is opened at the upper end of the fastener body. A wedge block is installed at the lower end of the front side wall of the frame body, and the wedge block is fastened to the fastening hole. The debris is poured out from the top opening of the box without needing to be turned over. If the debris is too heavy, it can greatly save the effort required for the staff to turn the box over. It also prevents the debris from falling out of the box and onto the staff during the turning process, and prevents the debris from sticking to the filter screen. This can improve the efficiency of emptying the debris. However, if the mesh of the filter screen is too large, it will not be able to filter out small particles of debris smaller than the mesh size, resulting in low cleanliness. If the mesh is too small, it will cause blockage and slow down the filtration speed. Utility Model Content
[0004] To address the aforementioned issues where excessively large mesh size prevents the removal of small particles smaller than the mesh opening, resulting in low cleanliness, while excessively small mesh size leads to clogging and slow filtration, this invention provides an automatic water surface cleaning machine that balances cleanliness and filtration speed.
[0005] This utility model provides an automatic water surface cleaning machine that balances cleanliness and filtration speed, and adopts the following technical solution:
[0006] An automatic water surface cleaning machine that balances cleanliness and filtration speed includes a housing, a top cover installed at one end of the top of the housing, a water outlet at the other end of the top of the housing, a water inlet at the bottom of the housing, and a filtration device inside the housing. The filtration device includes a primary filtration unit and a secondary filtration unit, wherein the filter holes of the primary filtration unit are larger than those of the secondary filtration unit.
[0007] By adopting the above technical solution, the sewage passes through the inlet, primary filtration unit, secondary filtration device and outlet in sequence for cleaning. The water first passes through the primary filtration unit and then through the secondary filtration unit. Since the filter holes of the primary filtration unit are larger than those of the secondary filtration unit, the primary filtration unit can prevent large particles from clogging the large-diameter filter holes of the primary filtration unit and speed up the filtration. The secondary filtration unit can filter out small particles with small pores. In this way, both cleanliness and filtration speed are taken into account.
[0008] Optionally, there is no connection between the primary filtration unit and the secondary filtration unit.
[0009] By adopting the above technical solution, only the filter unit that needs to be emptied can be taken out, instead of removing the primary and secondary filter units together each time, thus reducing the physical burden on the user.
[0010] Optionally, a fixing frame is installed at one end inside the housing, and the primary filtration unit is placed in the fixing frame.
[0011] By adopting the above technical solution, shaking during the operation of the automatic pool cleaning machine is prevented, and the primary filter unit is also easy to remove.
[0012] Optionally, the primary filtration unit includes a top cover and a filter box, the top cover and the filter box are connected, the top cover includes a cover body and a handle, and when the top cover is closed on the housing, the handle abuts against the top cover.
[0013] By adopting the above technical solution, the vibration of the filter unit during the operation of the automatic pool cleaning machine can be prevented.
[0014] Optionally, the secondary filtration unit includes a mounting bracket and a filter element, with the filter element located inside the mounting bracket.
[0015] The filter element is preferably a sponge.
[0016] By adopting the above technical solution, the sponge filter element can better adsorb impurities, thereby improving the filtration effect of the secondary filtration unit.
[0017] Optionally, the bottom of the mounting bracket of the secondary filtration unit abuts against the bottom plate of the housing, and the top of the mounting bracket is equipped with an abutting bracket. When the top cover is closed on the housing, the abutting bracket abuts against the top cover.
[0018] By adopting the above technical solution, the secondary filtration unit is prevented from shaking during the operation of the automatic pool cleaning machine.
[0019] Optionally, a valve device is provided inside the water inlet.
[0020] By adopting the above technical solution and setting the valve device, it is convenient to open or close the water inlet.
[0021] Optionally, a cleaning roller brush is installed at the bottom of the housing away from the water inlet.
[0022] By adopting the above technical solution, it is convenient to use a cleaning roller brush to scrub the bottom or walls of the pool.
[0023] In summary, this utility model has at least one of the following beneficial effects:
[0024] By using a combination of primary and secondary filtration units, with the primary filtration unit having larger pores than the secondary filtration unit, water first passes through the primary filtration unit and then through the secondary filtration unit. The primary filtration unit prevents large particles from clogging the larger pores, thus accelerating the filtration speed. The secondary filtration unit filters out small particles, allowing the cleaning machine to simultaneously achieve both cleanliness and filtration speed.
[0025] By eliminating the connection between the primary and secondary filtration units, only the unit that needs to be emptied can be removed, eliminating the need to remove both units together each time. This reduces the physical burden on users and improves the practicality of the cleaning machine. Attached Figure Description
[0026] 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.
[0027] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 1 ;
[0028] Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 2 ;
[0029] Figure 3 This is a schematic diagram of the half-sectional structure of this utility model;
[0030] Figure 4 This is a cross-sectional view of the present invention. Figure 1 ;
[0031] Figure 5 This is a cross-sectional view of the present invention. Figure 2 ;
[0032] Figure 6 This is a partial cross-sectional view of the present invention. Figure 1 ;
[0033] Figure 7 This is a schematic diagram of the secondary filtration unit structure of this utility model;
[0034] Figure 8 This is a schematic diagram of the primary filtration unit structure of this utility model;
[0035] Figure 9 This is a partial cross-sectional view of the present invention. Figure 2 .
[0036] In the diagram: 1. Housing; 2. Top cover; 3. Cover body; 4. Handle; 5. Abutment frame; 6. Outlet; 7. Mounting frame; 8. Filter box; 9. Inlet; 10. Base plate; 11. Cleaning roller brush; 12. Fixing frame; 13. Valve device. Detailed Implementation
[0037] The following is in conjunction with the appendix Figure 1-9 The present invention will be described in further detail below.
[0038] Please refer to the attached diagram in the instruction manual. Figure 1 , Figure 2 , Figure 4 and Figure 5 An embodiment of this utility model provides an automatic water surface cleaning machine that balances cleanliness and filtration speed. It includes a housing 1, a top cover 2 installed at one end of the top of the housing 1, a water outlet 6 at the other end of the top of the housing 1, a water inlet 9 at the bottom of the housing 1, and a filtration device inside the housing 1. The filtration device includes a primary filtration unit and a secondary filtration unit, and the filter holes of the primary filtration unit are larger than those of the secondary filtration unit.
[0039] Please refer to the attached diagram in the instruction manual. Figure 4 , Figure 5 , Figure 7 and Figure 8There is no connection between the primary and secondary filtration units. This means that only the unit that needs to be emptied is removed, eliminating the need to remove both units together each time, thus reducing the physical burden on the user.
[0040] Please refer to the attached diagram in the instruction manual. Figure 1 , Figure 6 and Figure 9 A fixing frame 12 is installed at one end inside the casing 1, and the primary filter unit is placed in the fixing frame 12. This prevents the automatic pool cleaner from shaking during operation and also makes it easy to remove the primary filter unit.
[0041] Please refer to the attached diagram in the instruction manual. Figure 2 , Figure 4 , Figure 5 , Figure 8 and Figure 9 The primary filtration unit includes a top cover and a filter box 8, which are connected. The top cover includes a cover body 3 and a handle 4. When the top cover 2 is closed onto the housing 1, the handle 4 abuts against the top cover 2 to prevent the primary filtration unit from shaking during the operation of the automatic pool cleaner.
[0042] Please refer to the attached diagram in the instruction manual. Figure 3 , Figure 4 , Figure 5 , Figure 7 and Figure 9 The secondary filtration unit includes a mounting frame 7 and a filter element, with the filter element located inside the mounting frame 7. The filter element is preferably a sponge. The sponge filter element allows for better adsorption of impurities, thereby improving the filtration efficiency of the secondary filtration unit.
[0043] Please refer to the attached diagram in the instruction manual. Figure 4 , Figure 5 and Figure 7 The bottom of the mounting bracket 7 of the secondary filtration unit rests against the base plate 10 of the housing 1, and the top of the mounting bracket 7 is equipped with an abutment bracket 5. When the top cover 2 is closed on the housing 1, the abutment bracket 5 abuts against the top cover 2. This prevents the secondary filtration unit from shaking during the operation of the automatic pool cleaner.
[0044] Please refer to the attached diagram in the instruction manual. Figure 4 , Figure 5 and Figure 6 The inlet 9 is equipped with a valve device 13. The valve device 13 allows for easy opening and closing of the inlet 9; preferably, the valve device is a rubber cover. A cleaning roller brush 11 is installed at the bottom of the housing 1, away from the inlet 9. This facilitates the cleaning of the pool bottom or walls using the cleaning roller brush 11.
[0045] Working principle: When the automatic pool cleaner is working, the sewage passes through the inlet 9, the primary filtration unit, the secondary filtration device, and the outlet 6 in sequence for cleaning. The cleaning roller brush 11 scrubs the bottom or walls of the pool. Under the suction of the impeller, the sewage opens the valve device inside the inlet 9 and enters the primary filtration unit. After being filtered by the filter box 8 of the primary filtration unit, large particles are trapped inside the primary filtration unit. After being filtered by the filter element of the secondary filtration unit, small particles are trapped inside the secondary filtration unit. The water is discharged from the outlet 6.
[0046] Water first passes through a primary filtration unit, then through a secondary filtration unit. The filter box 8 on the primary filtration unit prevents large particles from clogging the large-diameter filter holes, thus speeding up the filtration process. The filter cartridge on the secondary filtration unit filters out small particles, thus balancing cleanliness and filtration speed.
[0047] After the automatic water surface cleaning machine stops working, the valve device inside the water inlet 9 returns to its original position and the water inlet 9 is sealed. At this time, the primary filter unit or the secondary filter unit can be taken out for cleaning so that it can be used again. Since there is no connection between the primary filter unit and the secondary filter unit, only the filter unit that needs to be emptied needs to be taken out. It is not necessary to take out the primary filter unit and the secondary filter unit together every time, which reduces the physical burden on the user and improves the practicality of the cleaning machine.
[0048] 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 that balances cleanliness and filtration speed, comprising a housing (1), a top cover (2) installed at one end of the top of the housing (1), a water outlet (6) opened at the other end of the top of the housing (1), a water inlet (9) opened at the bottom of the housing (1), and a filtration device installed inside the housing (1), characterized in that: The filtration device includes a primary filtration unit and a secondary filtration unit, wherein the filter holes of the primary filtration unit are larger than the filter holes of the secondary filtration unit.
2. The automatic water surface cleaning machine that balances cleanliness and filtration speed according to claim 1, characterized in that: There is no connection between the primary filtration unit and the secondary filtration unit.
3. The automatic water surface cleaning machine that balances cleanliness and filtration speed according to claim 1, characterized in that: A fixing frame (12) is installed at one end inside the housing (1), and the primary filtration unit is placed in the fixing frame (12).
4. The automatic water surface cleaning machine that balances cleanliness and filtration speed according to claim 1, characterized in that: The primary filtration unit includes a top cover and a filter box (8), the top cover and the filter box (8) are connected, the top cover includes a cover body (3) and a handle (4), when the top cover (2) is closed on the housing (1), the handle (4) abuts against the top cover (2).
5. The automatic water surface cleaning machine that balances cleanliness and filtration speed according to claim 1, characterized in that: The secondary filtration unit includes a mounting bracket (7) and a filter element, with the filter element located inside the mounting bracket (7).
6. The automatic water surface cleaning machine that balances cleanliness and filtration speed according to claim 5, characterized in that: The bottom of the mounting bracket (7) of the secondary filtration unit abuts against the bottom plate (10) of the housing (1), and the top of the mounting bracket (7) is equipped with an abutment bracket (5). When the top cover (2) is closed on the housing (1), the abutment bracket (5) abuts against the top cover (2).
7. The automatic water surface cleaning machine that balances cleanliness and filtration speed according to claim 1, characterized in that: The inlet (9) is equipped with a valve device (13).
8. The automatic water surface cleaning machine that balances cleanliness and filtration speed according to claim 1, characterized in that: A cleaning roller brush (11) is installed at the bottom of the housing (1) away from the water inlet (9).
Citation Information
Patent Citations
Filtering device of full-automatic swimming pool cleaning machine and full-automatic swimming pool cleaning machine
CN221815511U