A pool cleaning robot with a self-cleaning function for the filter basket

Abstract

The present invention provides a pool cleaning robot with a self-cleaning function for a filter basket, which includes a robot main body, a garbage bin, a water pump and a water spraying device. A first cavity and a second cavity are provided in the robot main body and are connected through a first one-way valve. The garbage bin includes a filter basket and a garbage collection area that are connected through a third one-way valve. The filter basket is located in the first cavity and is rotatably connected to the robot main body. The filter basket is connected to the pool through the third one-way valve. The water spraying device includes a nozzle and a water pipe connecting the nozzle and the second cavity. The water flow ejected from the nozzle can impact the filter basket and drive the filter basket to rotate. The water pump includes a motor and an impeller. The motor has a first rotation direction and a second rotation direction. When the motor rotates in the first rotation direction, the impeller sends the pool water out of the second cavity. When the motor rotates in the second rotation direction, the impeller sends the pool water into the second cavity. The automatic cleaning of the filter basket is achieved by the motor rotating in the second rotation direction, which prolongs the underwater working time of the robot.

Description

Technical Field

[0001] The present invention relates to the technical field of pool cleaning equipment, and particularly to a pool cleaning robot with a self-cleaning function for a filter basket. Background Art

[0002] A swimming pool is a venue for people to engage in swimming activities. During use, it is inevitable to have garbage or plankton. Therefore, it is necessary to clean the pool water in a timely manner to avoid affecting use or people's physical health. To save labor, pool cleaning robots are commonly used for pool cleaning work. The pool cleaning robot is equipped with a filter basket and a water pump. After the pool water passes through the filter basket, it is pumped out by the water pump, and the garbage remains in the filter basket. There is a common problem with pool cleaning robots that the filter basket is easily blocked by garbage, making it difficult for the pool water to pass through the filter screen, thus greatly reducing the cleaning efficiency of the robot or even making it ineffective. Summary of the Invention

[0003] To solve the above problems, the present invention provides a pool cleaning robot with a self-cleaning function for a filter basket, which can automatically clean the filter basket and greatly extend the underwater working time of the pool robot.

[0004] The technical solution of the present invention is as follows: A pool cleaning robot with a self-cleaning function for a filter basket, comprising: a robot main body, in which a first cavity and a second cavity are provided, a first opening communicating with the first cavity and a second opening communicating with the second cavity are formed on the robot main body, the first cavity and the second cavity are communicated through a first one-way valve, and the first one-way valve can only open towards the second cavity; a garbage bin, arranged in the first cavity, the garbage bin includes a filter basket and a garbage collection area located above the filter basket; the first opening communicates with the first cavity by communicating with the filter basket, the first opening and the filter basket are communicated through a second one-way valve, and the second one-way valve can only open towards the filter basket; the garbage collection area is sealed in the first cavity and is communicated with the filter basket through a third one-way valve, and the third one-way valve can only open towards the garbage collection area; the filter basket is rotationally connected to the robot main body with the vertical direction as the axis; a water pump, including a motor and an impeller driven by the motor, the impeller is located between the second cavity and the second opening, the motor has a first rotation direction and a second rotation direction, when the motor rotates in the first rotation direction, the impeller drives the water flow in the second cavity towards the second opening, and when the motor rotates in the second rotation direction, the impeller drives the water flow at the second opening towards the second cavity; and a water spraying device, including a nozzle and a water pipe, the nozzle is arranged in the first cavity and is located outside the filter basket, one end of the water pipe communicates with the nozzle and the other end communicates with the second cavity; the water flow ejected from the nozzle can impact the filter basket and drive the filter basket to rotate;

[0005] As a further solution of the present invention, the filter basket is a cylindrical filter net, and the filter basket rotates around its own axis.

[0006] As a further solution of the present invention, two water spraying devices are provided, and the two water spraying devices are arranged diagonally with respect to the filter basket.

[0007] As a further solution of the present invention, the nozzle includes a nozzle main body in the shape of a strip and arranged in the vertical direction, and a plurality of water spraying openings distributed at intervals along the height direction of the nozzle main body.

[0008] As a further solution of the present invention, the total cross-sectional area of all the water spraying openings is smaller than the cross-sectional area of the second opening.

[0009] As a further solution of the present invention, a filter net is provided at the second opening.

[0010] As a further solution of the present invention, after the motor rotates in the second rotation direction for a first predetermined time, it will rotate in the first rotation direction.

[0011] As a further solution of the present invention, after the motor rotates in the first rotation direction for a second predetermined time, it will rotate in the second rotation direction.

[0012] As a further solution of the present invention, the first predetermined time is any value within 10 to 30 seconds.

[0013] As a further solution of the present invention, the second predetermined time is any value within 8 to 15 minutes.

[0014] The technical solution of the present invention has the following advantages: The motor has a first rotation direction and a second rotation direction. When the motor rotates in the first rotation direction, the pool cleaning robot realizes the cleaning of the pool water. When the motor rotates in the second rotation direction, after the pool water backflows, it impacts the filter basket through the water spraying device, so that the garbage detaches from the filter screen of the filter basket. At this time, the third one-way valve opens, and the water flow carries the garbage into the garbage collection area. The motor rotates in the first rotation direction again, and the third one-way valve closes, and the garbage remains in the garbage collection area, thus realizing the cleaning of the filter basket; By rotatably connecting the filter basket to the robot main body, the filter basket can rotate when the water flow impacts the filter basket, so that as much as possible of the surface of the filter basket is impacted by the water flow, thus realizing the comprehensive cleaning of the filter basket; The technical solution of the present invention does not need to add additional power, and the cleaning of the filter basket can be realized through the self - contained water pump; By automatically cleaning the filter basket, the present invention greatly extends the underwater working time of the pool cleaning robot and improves the cleaning efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained according to these drawings.

[0016] Figure 1 It is a front sectional view of the present invention;

[0017] Figure 2 It is a top view of the present invention after removing part of the robot main body, showing the internal structures of the first cavity and the second cavity;

[0018] Figure 3 It is a schematic structural view of the garbage bin and the water spraying device in the present invention;

[0019] Figure 4 It is an external axonometric view of the present invention.

[0020] Description of the reference numerals:

[0021] 10. Robot main body; 11. First cavity; 12. Second cavity; 111. First opening; 121. Second opening; 1211. Filter screen; 20. First one-way valve; 30. Garbage bin; 31. Filter basket; 32. Garbage collection area; 40. Second one-way valve; 50. Third one-way valve; 61. Motor; 62. Impeller; 71. Nozzle; 711. Nozzle body; 712. Water spray port; 72. Water pipe. Detailed implementation manners

[0022] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0023] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be construed as a limitation to the present invention. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0024] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0025] In addition, the technical features involved in different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0026] Refer to the attached Figure 1 to the attached Figure 4, a pool cleaning robot with a self-cleaning function of the filter basket, comprising: a robot main body 10, in which a first cavity 11 and a second cavity 12 are provided, a first opening 111 communicating with the first cavity 11 and a second opening 121 communicating with the second cavity 12 are formed on the robot main body 10, the first cavity 11 and the second cavity 12 are connected through a first one-way valve 20, and the first one-way valve 20 can only open towards the second cavity 12; a garbage bin 30, arranged in the first cavity 11, the garbage bin 30 includes a filter basket 31 and a garbage collection area 32 located above the filter basket 31; the first opening 111 communicates with the first cavity 11 by communicating with the filter basket 31, the first opening 111 and the filter basket 31 are connected through a second one-way valve 40, and the second one-way valve 40 can only open towards the filter basket 31; the garbage collection area 32 is sealed in the first cavity 11 and is connected with the filter basket 31 through a third one-way valve 50, and the third one-way valve 50 can only open towards the garbage collection area 32; the filter basket 31 is rotatably connected to the robot main body 10 with the vertical direction as the axis; a water pump, including a motor 61 and an impeller 62 driven by the motor 61, the impeller 62 is located between the second cavity 12 and the second opening 121, the motor 61 has a first rotation direction and a second rotation direction, when the motor 61 rotates in the first rotation direction, the impeller 62 drives the water flow in the second cavity 12 towards the second opening 121, when the motor 61 rotates in the second rotation direction, the impeller 62 drives the water flow at the second opening 121 towards the second cavity 12; a water spraying device, including a nozzle 71 and a water pipe 72, the nozzle 71 is arranged in the first cavity 11 and is located outside the filter basket 31, one end of the water pipe 72 communicates with the nozzle 71 and the other end communicates with the second cavity 12; the water flow sprayed from the nozzle 71 can impact the filter basket 31 and drive the filter basket 31 to rotate; and a controller, communicatively connected to the motor 61, for controlling the motor 61 to rotate in the first rotation direction or the second rotation direction.

[0027] After the pool cleaning robot of the above technical solution is placed in the pool water, when the controller controls the motor 61 to rotate in the first rotation direction, the first and second one-way valves 20 and 40 open, the third one-way valve 50 closes, and the second chamber 12 continuously generates negative pressure. As a result, the pool water continuously flows from the first chamber 11 into the second chamber 12. At this time, the pool water specifically flows as follows: after passing through the first opening 111 and the second one-way valve 40, it enters the filter basket 31. After being filtered, the waste remains in the filter basket 31. The pool water then continues to pass through the first one-way valve 20 into the second chamber 12, and then, driven by the impeller 62, returns to the pool through the second opening 121. This is the pool cleaning robot's sewage suction cleaning mode, which cleans the pool water while gradually accumulating waste in the filter basket 31.

[0028] When the controller controls the motor 61 to rotate in the second rotation direction, the first and second one-way valves 20 and 40 are closed, the third one-way valve 50 is opened, and the pressure in the second chamber 12 is continuously increased. Pool water then flows from the water pipe 72 to the nozzle 71 and is ejected from the nozzle 71. The water ejected from the nozzle 71 impacts the filter basket 31 from the outside, causing debris to be ejected from the filter basket 31 by the water flow. At this time, the water pressure in the filter basket 31 increases, and the pool water carries the ejected debris toward the debris collection area 32. After a period of time, the controller controls the motor 61 to rotate in the first rotation direction again, and the third one-way valve 50 is closed, thereby retaining the debris in the debris collection area 32. The water ejected from the nozzle 71 impacts the filter basket 31 while causing it to rotate, allowing the filter basket 31 to be rinsed more thoroughly, thereby cleaning the filter basket 31. This is the filter basket self-cleaning mode of the pool cleaning robot.

[0029] As can be seen from the above, the present invention can clean the pool water and the filter basket by controlling the steering direction of the motor 61 in the water pump by the controller, without the need for additional power, which is simple and easy to operate. The swimming pool cleaning robot of the present invention greatly extends the underwater working time by automatically cleaning the filter basket 31, reduces the number of times it is taken out of the pool for cleaning, and thus improves its cleaning efficiency.

[0030] The first one-way valve 20, the second one-way valve 40 and the third one-way valve 50 can be automatically opened or closed due to changes in water pressure. It should be noted that the opening water pressure of the third one-way valve 50 is greater than the opening water pressure of the first one-way valve 20 and the second one-way valve 40; the first one-way valve 20, the second one-way valve 40 and the third one-way valve 50 can also be respectively communicated with the controller so that they can be controlled by the controller to open or close.

[0031] The garbage collection area 32 and the filter basket 31 may be fixedly connected, and then the garbage collection area 32 can rotate relative to the robot main body 10; the garbage collection area 32 and the filter basket 31 may also be rotatably connected, and then the garbage collection area 32 is fixedly connected to the robot main body 10.

[0032] In some embodiments, it is preferable that the filter basket 31 is a cylindrical filter screen, and the filter basket 31 rotates around its own axis; the jet forces received by the cylindrical filter screen in all directions are relatively uniform, so that a more comprehensive cleaning can be achieved.

[0033] In some embodiments, especially when the filter basket 31 is a cylindrical filter screen, there are two water spraying devices, and the two water spraying devices are arranged diagonally relative to the filter basket 31.

[0034] Reference appendix Figure 3 , for an embodiment of the nozzle 71 in the water spraying device, the nozzle 71 includes a nozzle main body 711 in a strip shape and arranged in the vertical direction and a plurality of water spraying openings 712 distributed at intervals along the height direction of the nozzle main body 711; further, in order to make the impact force of the water flow sprayed from the water spraying openings 712 stronger so as to achieve a better cleaning effect on the filter basket 31, the total cross-sectional area of all the water spraying openings 712 should be smaller than the cross-sectional area of the second opening 121.

[0035] In addition, in some embodiments, reference appendix Figure 4 , a filter screen 1211 is arranged at the second opening 121, and the filter screen 1211 is used to prevent garbage from entering the second cavity 12 and avoid blocking of the water pipe 72.

[0036] For a control method of the controller for the motor 61, the controller controls the motor 61 to rotate in the second rotation direction, and after a first predetermined time, controls the motor 61 to rotate in the first rotation direction, and after a second predetermined time, controls the motor 61 to rotate in the second rotation direction again, and so on in a cycle to achieve control of the rotation direction of the motor 61, so that an automatic cleaning of the filter basket 31 can be achieved every other second predetermined time, and the cleaning time is the first predetermined time; optionally, the first predetermined time is any value within 10 to 30 seconds, such as 10s, 13s, 18s, 21s, 25.5s, 27s, 30s, etc.; the second predetermined time can be optionally any value within 8 to 15 minutes, such as 10min, 11.5min, 13min, 15min, etc.

[0037] Obviously, the above embodiments are merely examples given for clear illustration and are not limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to enumerate all implementation manners here. And the obvious changes or modifications derived therefrom still fall within the protection scope of the present invention.

Claims

1. A swimming pool cleaning robot with a filter basket self-cleaning function, characterized in that: include: a robot body, wherein a first cavity and a second cavity are provided in the robot body, a first opening communicating with the first cavity and a second opening communicating with the second cavity are formed on the robot body, the first cavity and the second cavity are connected via a first one-way valve, and the first one-way valve can only be opened into the second cavity; A trash bin is disposed within the first cavity, the trash bin including a filter basket and a trash collection area located above the filter basket; the first opening is connected to the first cavity by communicating with the filter basket, the first opening being connected to the filter basket via a second one-way valve, the second one-way valve being openable only toward the filter basket; the trash collection area is sealed within the first cavity and communicates with the filter basket via a third one-way valve, the third one-way valve being openable only toward the trash collection area; the filter basket is rotatably connected to the robot body about a vertical axis; A water pump comprising a motor and an impeller driven by the motor, the impeller being located between the second cavity and the second opening, the motor having a first rotation direction and a second rotation direction, wherein when the motor rotates in the first rotation direction, the impeller drives water in the second cavity to flow toward the second opening, and when the motor rotates in the second rotation direction, the impeller drives water at the second opening to flow toward the second cavity; and a water spraying device, comprising a nozzle and a water pipe, wherein the nozzle is disposed in the first cavity and outside the filter basket, and one end of the water pipe is connected to the nozzle and the other end is connected to the second cavity; The water flow sprayed from the nozzle can impact the filter basket and drive the filter basket to rotate.

2. The swimming pool cleaning robot with filter basket self-cleaning function according to claim 1, characterized in that: The filter basket is a cylindrical filter screen, and the filter basket rotates around its own axis.

3. The swimming pool cleaning robot with filter basket self-cleaning function according to claim 2, characterized in that: There are two water spraying devices, and the two nozzles are arranged diagonally relative to the filter basket.

4. The swimming pool cleaning robot with filter basket self-cleaning function according to claim 3, characterized in that: The nozzle comprises a strip-shaped nozzle body arranged in a vertical direction and a plurality of water spray ports distributed at intervals along a height direction of the nozzle body.

5. The swimming pool cleaning robot with filter basket self-cleaning function according to claim 4, characterized in that: The total cross-sectional area of all the water spray outlets is smaller than the cross-sectional area of the second opening.

6. The swimming pool cleaning robot with filter basket self-cleaning function according to claim 1, characterized in that: A filter is provided at the second opening.

7. The swimming pool cleaning robot with a filter basket self-cleaning function according to any one of claims 1 to 6, characterized in that: After the motor rotates in the second rotation direction for a first predetermined time, it rotates in the first rotation direction.

8. The swimming pool cleaning robot with filter basket self-cleaning function according to claim 7, characterized in that: After the motor rotates in the first rotation direction for a second predetermined time, it rotates in the second rotation direction.

9. The swimming pool cleaning robot with filter basket self-cleaning function according to claim 8, characterized in that: The first predetermined time is any value between 10 seconds and 30 seconds.

10. The swimming pool cleaning robot with filter basket self-cleaning function according to claim 9, characterized in that: The second predetermined time is any value between 8 minutes and 15 minutes.

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