Filtering device for preventing impurities from overflowing and automatic swimming pool cleaning machine

Abstract

The utility model discloses a filtering device capable of preventing impurities from overflowing and an automatic swimming pool cleaning machine, which belong to the technical field of automatic swimming pool cleaning machines and comprise a first-layer filtering unit and a second-layer filtering unit, and the aperture of the first-layer filtering unit is larger than that of the second-layer filtering unit. A closed space is formed between the first-layer filtering unit and the second-layer filtering unit. The closed space is formed between the first-layer filtering unit and the second-layer filtering unit, so that impurities which pass through the first-layer filtering unit and do not pass through the second-layer filtering unit can be closed in the closed space and cannot overflow, and the operation of a water pump motor or a walking motor cannot be influenced; the cleaning efficiency of the automatic swimming pool cleaning machine is guaranteed, the interior of the shell of the automatic swimming pool cleaning machine is prevented from becoming smelly, and the difficulty of cleaning the interior of the shell is reduced.

Description

Technical Field

[0001] This utility model relates to the technical field of automatic swimming pool cleaning machines, and in particular to a filtration device and an automatic swimming pool cleaning machine that prevents impurities from overflowing. 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. When the robot operates, the internal equipment creates negative pressure, drawing water in through the inlet. After impurities are filtered out, the water exits through the filtration system. 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] In order to filter both large and small particles, existing filtration devices use a double-layer filter screen, with the pore size of the first layer being larger than that of the second layer.

[0004] However, filtration devices with double-layer filters have a drawback: impurities often overflow between the two layers, leading to an accumulation of impurities inside the automatic pool cleaner's casing. This affects the operation of the water pump motor or the walking motor, reducing the cleaning efficiency of the automatic pool cleaner. Furthermore, it causes the inside of the automatic pool cleaner's casing to become increasingly smelly, and the numerous internal components increase the difficulty of cleaning the casing. Based on this, we propose a filtration device and an automatic pool cleaner that prevent impurities from overflowing. Utility Model Content

[0005] In order to improve the problem mentioned above, where impurities often overflow between the double-layer filter screens, resulting in more and more impurities inside the casing of the automatic pool cleaner, and the increased difficulty in cleaning the inside of the casing due to the large number of components inside, this utility model provides a filter device and an automatic pool cleaner that prevent impurities from overflowing.

[0006] This utility model provides a filtration device and an automatic swimming pool cleaning machine to prevent impurities from overflowing, and adopts the following technical solution:

[0007] A filtration device for preventing impurities from overflowing includes a first filtration unit and a second filtration unit, wherein the pore size of the first filtration unit is larger than that of the second filtration unit, and a closed space is formed between the first filtration unit and the second filtration unit.

[0008] By adopting the above technical solution, impurities that pass through the first filtration unit but not the second filtration unit will be sealed in the enclosed space, preventing them from overflowing and affecting the operation of the water pump motor or the walking motor. This ensures the cleaning efficiency of the automatic pool cleaner, prevents the inside of the automatic pool cleaner from becoming smelly, and reduces the difficulty of cleaning the inside of the shell.

[0009] Optionally, the first filter unit and the second filter unit are connected by a snap-fit ​​connection.

[0010] By adopting the above technical solution, it is easy to separate the first filter unit and the second filter unit, which facilitates cleaning of the first filter unit and the second filter unit. It is also easy to pour out the impurities between the first filter unit and the second filter unit and then thoroughly clean the first filter unit and the second filter unit.

[0011] Optionally, the first layer filter unit includes a first filter screen and a first frame, with the first filter screen mounted on the first frame. The second layer filter unit includes a second filter screen and a second frame, with the second filter screen mounted on the second frame. The first frame and the second frame are fitted together.

[0012] By adopting the above technical solution, a closed space is formed between the first filter unit and the second filter unit.

[0013] Optionally, the first frame is provided with a protrusion, and the second frame is provided with a groove, with the protrusion on the first frame and the groove on the second frame abutting against each other.

[0014] By adopting the above technical solution, it is convenient to position and assemble the first frame and the second frame.

[0015] Optionally, the first frame includes an upper surface and an inner surface, and the second frame includes a lower surface and an outer surface, wherein the inner surface and the outer surface are fitted together, and the upper surface and the lower surface are fitted together.

[0016] By adopting the above technical solution, the first frame and the second frame are fitted together, and the first frame and the second frame will not move relative to each other in the horizontal and vertical directions. This improves the stability of fitting the first frame and the second frame together, and thus improves the formation of a closed space between the first layer filter unit and the second layer filter unit.

[0017] Optionally, the inner surface and the upper surface are spaced apart; preferably, the number of both the lower surface and the outer surface is set to four.

[0018] By adopting the above technical solution, the stability of the fit between the first frame and the second frame is further improved, which in turn further improves the stability of the closed space formed between the first filter unit and the second filter unit.

[0019] Automatic pool cleaner, including the aforementioned filter device to prevent impurities from overflowing.

[0020] Optionally, the device includes a housing, which comprises an upper shell and a lower shell. The lower shell is provided with a water inlet, and the upper shell is provided with a water outlet. A filter device is installed inside the housing.

[0021] By adopting the above technical solution, the water in the pool is drawn into the shell through the inlet, filtered to remove impurities by the filtration device, and then discharged from the outlet.

[0022] Optionally, the lower shell has an annular protrusion inside, and the bottom of the first frame has an annular groove, with the annular protrusion located in the annular groove.

[0023] By adopting the above technical solution, it is easier to position the filtration device.

[0024] Optionally, the inner wall of the upper shell is provided with a pressure column, which abuts against the upper surface of the first frame at a location that does not fit against the lower surface of the second frame.

[0025] By adopting the above technical solution, the filtration device is prevented from shaking inside the housing.

[0026] In summary, this utility model has at least one of the following beneficial effects:

[0027] By creating a closed space between the first and second filter units, impurities that pass through the first filter unit but not the second are trapped inside, preventing them from overflowing and affecting the operation of the water pump motor or the walking motor. This ensures the cleaning efficiency of the automatic pool cleaner, prevents the inside of the machine from becoming smelly, and reduces the difficulty of cleaning the inside of the machine.

[0028] The first and second filter units are connected by clips, making it easy to separate them and thus convenient to pour out the impurities between them for thorough cleaning. Attached Figure Description

[0029] 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.

[0030] Figure 1 This is a bottom view of the connection between the first and second filter units of this utility model.

[0031] Figure 2 This is a top view of the connection between the first and second filter units of this utility model.

[0032] Figure 3 This is a bottom view of the second-layer filter unit of this utility model;

[0033] Figure 4 This is a top view of the second-layer filter unit of this utility model;

[0034] Figure 5 This is a schematic diagram of the first layer filter unit structure of this utility model. Figure 1 ;

[0035] Figure 6 This is a schematic diagram of the first layer filter unit structure of this utility model. Figure 2 ;

[0036] Figure 7 For the present utility model Figure 6 Enlarged structural diagram at point A in the middle;

[0037] Figure 8 This is a schematic half-sectional view of the connection between the first and second filter units of this utility model. Figure 1 ;

[0038] Figure 9 For the present utility model Figure 8 Enlarged structural diagram at point B;

[0039] Figure 10 This is a schematic half-sectional view of the connection between the first and second filter units of this utility model. Figure 2 ;

[0040] Figure 11 For the present utility model Figure 10 Enlarged structural diagram at point C;

[0041] Figure 12 This is a front view structural diagram of the automatic swimming pool cleaning machine of this utility model;

[0042] Figure 13 This is a bottom view of the automatic pool cleaning machine of this utility model;

[0043] Figure 14 This is a schematic half-sectional view of the automatic swimming pool cleaning machine of this utility model. Figure 1 ;

[0044] Figure 15 This is a schematic half-sectional view of the automatic swimming pool cleaning machine of this utility model. Figure 2 ;

[0045] Figure 16 This is a schematic half-sectional view of the automatic swimming pool cleaning machine of this utility model. Figure 3 ;

[0046] Figure 17 For the present utility model Figure 16 Enlarged structural diagram at point D;

[0047] Figure 18 This is a schematic diagram of the lower shell structure of this utility model.

[0048] In the diagram: 1. Buckle; 2. First filter screen; 3. First frame; 4. Protrusion; 5. Second filter screen; 6. Second frame; 7. Groove; 8. Lower surface; 9. Outer surface; 10. Upper surface; 11. Inner surface; 12. Enclosed space; 13. Annular groove; 14. Upper shell; 15. Outlet; 16. Lower shell; 17. Inlet; 18. Pressure column; 19. Annular protrusion. Detailed Implementation

[0049] The following is in conjunction with the appendix Figures 1-18 The present invention will be described in further detail below.

[0050] Please refer to the attached diagram in the instruction manual. Figure 1 , Figure 8 and Figure 9 An embodiment of this utility model provides a filter device for preventing impurities from overflowing, comprising a first filter unit and a second filter unit, wherein the pore size of the first filter unit is larger than the pore size of the second filter unit, and a closed space 12 is formed between the first filter unit and the second filter unit.

[0051] Please refer to the attached diagram in the instruction manual. Figure 1 , Figure 2 , Figure 3 and Figure 4The first and second filter units are connected by snap fasteners 1. Preferably, there are four snap fasteners 1, which are evenly arranged on the second filter unit. This facilitates the disassembly and cleaning of the first and second filter units, and also allows for the thorough cleaning of the first and second filter units after removing impurities.

[0052] Please refer to the attached diagram in the instruction manual. Figure 1 , Figure 2 , Figure 5 , Figure 8 and Figure 9 The first filter unit includes a first filter screen 2 and a first frame 3, with the first filter screen 2 mounted on the first frame 3. The second filter unit includes a second filter screen 5 and a second frame 6, with the second filter screen 5 mounted on the second frame 6. The first frame 3 and the second frame 6 are fitted together. A closed space 12 is formed between the first filter unit and the second filter unit.

[0053] Please refer to the attached diagram in the instruction manual. Figure 1 , Figure 5 , Figure 9 , Figure 10 and Figure 11 The first frame 3 has a protrusion 4, and the second frame 6 has a groove 7. The protrusion 4 on the first frame 3 and the groove 7 on the second frame 6 abut against each other. This facilitates the positioning and assembly of the first frame 3 and the second frame 6.

[0054] Please refer to the attached diagram in the instruction manual. Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 9 The first frame 3 includes an upper surface 10 and an inner surface 11, and the second frame 6 includes a lower surface 8 and an outer surface 9. The inner surface 11 is fitted with the outer surface 9, and the upper surface 10 is fitted with the lower surface 8. In this way, the first frame 3 and the second frame 6 are fitted together, and the first frame 3 and the second frame 6 will not move relative to each other in the lateral and longitudinal directions, which improves the stability of the fitting of the first frame 3 and the second frame 6, and thus improves the formation of the closed space 12 between the first layer filter unit and the second layer filter unit.

[0055] Please refer to the attached diagram in the instruction manual. Figure 3 , Figure 4 , Figure 5 and Figure 9The inner surface 11 is spaced apart from the upper surface 10. Preferably, the number of both the lower surface 8 and the outer surface 9 is set to 4. This further improves the stability of the first frame 3 and the second frame 6 fitting together, and thus further improves the stability of the closed space 12 formed between the first filter unit and the second filter unit.

[0056] Please refer to the attached diagram in the instruction manual. Figure 12 Automatic pool cleaner, including the aforementioned filter device to prevent impurities from overflowing.

[0057] Please refer to the attached diagram in the instruction manual. Figure 12 , Figure 13 , Figure 14 and Figure 15 The system includes a shell, which comprises an upper shell 14 and a lower shell 16. The lower shell 16 is provided with a water inlet 17, and the upper shell 14 is provided with a water outlet 15. A filter device is installed inside the shell. This allows water from the pool to be drawn into the shell through the water inlet 17, filtered to remove impurities, and then discharged through the water outlet 15.

[0058] Please refer to the attached diagram in the instruction manual. Figure 16 , Figure 17 and Figure 18 The lower shell 16 has an annular protrusion 19 inside, and the bottom of the first frame 3 has an annular groove 13, with the annular protrusion 19 located in the annular groove 13. This facilitates the positioning of the filter device.

[0059] Please refer to the attached diagram in the instruction manual. Figure 1 , Figure 2 , Figure 3 , Figure 5 , Figure 17 and Figure 18 The inner wall of the upper shell 14 is provided with a pressure column 18, which abuts against the part of the upper surface 10 of the first frame 3 that is not in contact with the lower surface 8 of the second frame 6. This prevents the filter device from shaking inside the shell.

[0060] Working principle: During use, the internal equipment of the pool cleaner generates negative pressure, and water is drawn into the housing through the inlet 17. After impurities are filtered out by the first and second filter units, the water is discharged from the outlet 15. Since a closed space 12 is formed between the first and second filter units, impurities that have passed through the first filter unit but not the second filter unit are trapped in the closed space 12 and will not overflow. This will not affect the operation of the water pump motor or the walking motor, ensuring the cleaning efficiency of the automatic pool cleaner and preventing the inside of the automatic pool cleaner from becoming smelly, thus reducing the difficulty of cleaning the inside of the housing.

[0061] After a period of use, debris accumulates inside the enclosed space 12. When it is necessary to clean up the accumulated debris, remove the upper shell 14 from the top of the lower shell 16, open the machine, and take out the filter device. Then, open the four clips 1 to separate the first and second filter units. Wash the first filter screen 2, the second filter screen 5, and the lower shell 16 with running water. After washing, align the two protrusions 4 on the first frame 3 with the grooves 7 on the second frame 6. After alignment, press the four clips 1 to complete the assembly of the first and second filter units. After the filter device is assembled, put the filter device into the lower shell 16, align the upper shell 14, and gently press the upper shell 14 to close the cleaning machine.

[0062] 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. A filtration device for preventing impurities from overflowing, comprising a first filtration unit and a second filtration unit, wherein the pore size of the first filtration unit is larger than the pore size of the second filtration unit, characterized in that: A closed space (12) is formed between the first layer filter unit and the second layer filter unit.

2. The filter device for preventing impurities from overflowing according to claim 1, characterized in that: The first layer filter unit and the second layer filter unit are connected by a snap-fit ​​(1).

3. The filter device for preventing impurities from overflowing according to claim 1, characterized in that: The first layer filter unit includes a first filter screen (2) and a first frame (3), the first filter screen (2) is installed on the first frame (3), the second layer filter unit includes a second filter screen (5) and a second frame (6), the second filter screen (5) is installed on the second frame (6), and the first frame (3) is attached to the second frame (6).

4. The filter device for preventing impurities from overflowing according to claim 3, characterized in that: The first frame (3) is provided with a protrusion (4), and the second frame (6) is provided with a groove (7). The protrusion (4) on the first frame (3) and the groove (7) on the second frame (6) abut against each other.

5. The filter device for preventing impurities from overflowing according to claim 3, characterized in that: The first frame (3) includes an upper surface (10) and an inner surface (11), and the second frame (6) includes a lower surface (8) and an outer surface (9). The inner surface (11) is attached to the outer surface (9), and the upper surface (10) is attached to the lower surface (8).

6. The filter device for preventing impurities from overflowing according to claim 5, characterized in that: The inner side surface (11) is spaced apart from the upper surface (10).

7. An automatic pool cleaning machine, comprising a filter device for preventing the overflow of impurities as described in any one of claims 5-6.

8. The automatic swimming pool cleaning machine according to claim 7, characterized in that: The device includes a housing, which includes an upper shell (14) and a lower shell (16). The lower shell (16) is provided with a water inlet (17), and the upper shell (14) is provided with a water outlet (15). A filter device is installed inside the housing.

9. The automatic swimming pool cleaning machine according to claim 8, characterized in that: The lower shell (16) has an annular protrusion (19) inside, and the bottom of the first frame (3) has an annular groove (13), with the annular protrusion (19) located in the annular groove (13).

10. The automatic swimming pool cleaning machine according to claim 8, characterized in that: The inner wall of the upper shell (14) is provided with a pressure column (18), which abuts against the part of the upper surface (10) of the first frame (3) that is not in contact with the lower surface (8) of the second frame (6).

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