Filtering device and swimming pool robot

Abstract

The invention discloses a filtering device which comprises a first filtering bin, a second filtering bin, a first one-way valve and a second one-way valve, the first filtering bin is provided with a first water inlet communicated with the outside, and the second filtering bin is provided with a second water inlet communicated with the first filtering bin; the first one-way valve is arranged at the first water inlet, and the second one-way valve is arranged at the second water inlet; wherein external water flow enters the first filtering bin through the first water inlet, water flow in the first filtering bin enters the second filtering bin through the second water inlet, the first one-way valve is used for conducting or cutting off the first water inlet in a one-way mode, and the second one-way valve is used for conducting or cutting off the second water inlet in a one-way mode. Correspondingly, the invention further discloses a swimming pool robot which comprises the filtering device. The filtering device provided by the invention is higher in anti-blocking capability, and the blocking frequency and the blocking speed of the filtering device can be reduced.

Description

Technical Field

[0001] The invention relates to the technical field of swimming pool cleaning equipment, and in particular to a filtering device and a swimming pool robot. Background Art

[0002] The swimming pool is a place for people to swim. During the use of the swimming pool, garbage and bacteria will be generated, and the swimming pool needs to be cleaned regularly. Now people often use swimming pool robots to clean the swimming pool. The emergence of swimming pool robots has liberated labor and improved people's quality of life. The swimming pool robot is equipped with a filtering device, which sucks in the water with dirt in the swimming pool and leaves the dirt in the filtering device to discharge clean water into the swimming pool.

[0003] However, the inventors have discovered that the existing filtering device of the swimming pool robot is a single filtering chamber setting. Due to the action of the water flow, the dirt in the water is easily washed onto the filter screen or filter port of the filtering chamber, resulting in the filter screen or filter port being unable to drain water normally, causing the filtering chamber to be blocked quickly and frequently, and resulting in insufficient space utilization of the filtering chamber. When the filtering chamber only accommodates a small amount of dirt, a blockage problem will occur. The operator needs to frequently clean or replace the filter screen of the swimming pool robot, and when the filtering device is in a blocked state, the swimming pool robot cannot normally filter the dirt in the swimming pool water, affecting the working efficiency of the swimming pool robot and the quality of cleaning the swimming pool.

[0004] Therefore, it is now urgent to design a new filtering device to solve the above-mentioned existing technical problems. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide a filtering device and a swimming pool robot to solve the problem that the filtering device of the existing swimming pool robot is easily blocked.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is: a filtering device, including a first filter chamber, a second filter chamber, a first one-way valve and a second one-way valve, the first filter chamber is provided with a first water inlet connected to the outside, the second filter chamber is provided with a second water inlet connected to the first filter chamber, the first one-way valve is arranged at the first water inlet, and the second one-way valve is arranged at the second water inlet; wherein, external water flows into the first filter chamber through the first water inlet, and water flows in the first filter chamber enters the second filter chamber through the second water inlet, the first one-way valve is used for unidirectional conduction or isolation of the first water inlet, and the second one-way valve is used for unidirectional conduction or isolation of the second water inlet.

[0007] Furthermore, the first one-way valve includes a first elastic member and a first one-way cover plate, and the second one-way valve includes a second elastic member and a second one-way cover plate, the first elastic member is connected to the first one-way cover plate so as to maintain a covering state with the first one-way cover plate, and the second elastic member is connected to the second one-way cover plate so as to maintain a covering state with the second one-way cover plate.

[0008] Furthermore, the elastic force of the first elastic member is smaller than the elastic force of the second elastic member.

[0009] Furthermore, the second filter bin is provided with a handle.

[0010] Furthermore, the filtering device includes at least two of the second filtering chambers.

[0011] Furthermore, it also includes a third filter tank and a third one-way valve. The third filter tank is provided with a third water inlet connected to the second filter tank. The third one-way valve is arranged in the third water inlet. The third one-way valve is used to unilaterally guide or block the third water inlet.

[0012] Furthermore, the first filter chamber is detachably connected to the second filter chamber.

[0013] Furthermore, the first filter tank is provided with an opening corresponding to the second water inlet.

[0014] Another object of the present invention is to provide a swimming pool robot, comprising the above-mentioned filtering device.

[0015] Furthermore, it also includes a shell and a water pump, the shell is provided with a water intake port and a water outlet, a water flow channel is formed between the water intake port and the water outlet, the filtering device is arranged in the water flow channel, and the water pump is at least partially located in the water flow channel.

[0016] The beneficial effects of the present invention are as follows: the first filter chamber and the second filter chamber of the filter device provided by the present invention can both be provided with filter screens or filter ports, and the filter device is assembled inside a swimming pool robot. In actual use, the interior of the swimming pool robot sucks in water from the swimming pool, and the water will form a water flow with a certain impact force, and the water flow can flush open the first one-way valve to pass through the first water inlet from the outside of the filter device to the first filter chamber in one direction; when the first filter chamber is in an empty chamber state, water can be discharged from the filter screen or filter port of the first filter chamber, and the dirt in the water is filtered in the first filter chamber. At this time, the water will not have too much impact on the second one-way valve. Under the action of a large impact force, the second one-way valve keeps blocking the second water inlet; as the first filter chamber absorbs and filters more and more dirt, the filter screen or filter port of the first filter chamber will become more and more blocked, and water cannot be discharged from the first filter chamber normally, and the impact of water on the second one-way cover plate increases; when the first filter chamber is in a full state or the filter screen / filter port of the first filter chamber is blocked to a certain extent, the second one-way valve will open under the action of the impact force of water, and water enters the second filter chamber from the first filter chamber through the second water inlet in one direction, and the water is discharged from the filter chamber / filter port of the second filter chamber, and the dirt in the water is filtered in the second filter chamber.

[0017] In summary, the filter device provided by the present invention is provided with at least two filter chambers that can be activated in sequence, and the filter chambers can more fully filter the dirt in the water, and the filter device has a low clogging frequency and a low clogging speed. The filter device improves the anti-clogging ability and correspondingly reduces the time cost of the operator to manage and clean the filter device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic diagram of the structure of the filtering device of the present invention in one embodiment from a viewing angle;

[0019] Figure 2 A schematic structural diagram of the filtering device of the present invention in another embodiment from another perspective;

[0020] Figure 3 When the first cover plate and the second cover plate are both in the covered state Figure 2 AA section view;

[0021] Figure 4 When the first cover and the second cover are both in the open state Figure 2 AA section view;

[0022] Figure 5 This is a schematic diagram of the structure of the swimming pool robot according to one embodiment of the present invention;

[0023] Figure 6 for Figure 5BB cross-sectional view.

[0024] Description of labels:

[0025] 1. First filter chamber; 11. First one-way cover plate; 12. First water inlet;

[0026] 2. Second filter chamber; 21. Second one-way cover plate; 22. Second water inlet;

[0027] 3.Handle piece;

[0028] 4. Shell;

[0029] 5. Water pump;

[0030] 6. Water inlet;

[0031] 7. Water outlet;

[0032] 8. Roller brush;

[0033] 9. Drive components. DETAILED DESCRIPTION

[0034] In order to explain the technical content, achieved objectives and effects of the present invention in detail, the following is an explanation in combination with the implementation modes and the accompanying drawings.

[0035] Please refer to Figures 1 to 6 , a filtering device comprises a first filtering chamber 1, a second filtering chamber 2, a first one-way valve and a second one-way valve, wherein the first filtering chamber 1 is provided with a first water inlet 12 which is connected to the outside of the filtering chamber, and the second filtering chamber 2 is provided with a second water inlet 22 which is connected to the first filtering chamber 1, the first one-way valve is arranged in the first water inlet 12, and the second one-way valve is arranged in the second water inlet 22; wherein, the external water flow of the filtering device enters the first filtering chamber 1 through the first water inlet 12, and the water flow in the first filtering chamber 1 enters the second filtering chamber 2 through the second water inlet 22, the first one-way valve is used for unidirectionally conducting or blocking the first water inlet, and the second one-way valve is used for unidirectionally conducting or blocking the second water inlet.

[0036] The working principle of the filtering device provided by the present invention is briefly described as follows: in actual application, the device is assembled inside a swimming pool robot. When the swimming pool robot performs cleaning operations in the swimming pool, the interior of the swimming pool robot will suck in water from the swimming pool and form a water flow with a certain impact force inside the swimming pool robot.

[0037] When the first filter chamber 1 and the second filter chamber 2 of the filter device are both in an empty chamber state, the water flow in the swimming pool robot generates an impact force on the first one-way cover plate 11, the first one-way valve is in an open state under the impact force of the water flow, and the first water inlet 12 is in a conducting state, and the water flow can enter the first filter chamber 1 from the outside of the filter device through the first water inlet 12 in a one-way manner; the first filter chamber 1 can be provided with a filter screen or a filter port, and the water can be discharged from the filter screen or the filter port to the drainage channel of the swimming pool robot, and the dirt in the water is filtered in the first filter chamber 1 by the filter screen or the filter port; because the water in the first filter chamber 1 can be discharged from the filter screen or the filter port of the first filter chamber 1 in time, the water in the first filter chamber 1 will not generate too much impact force on the second one-way cover plate 21, and the second one-way cover plate 21 remains in a covered state at this time;

[0038] When the swimming pool robot is cleaning, more and more dirt is filtered and accumulated in the first filter chamber 1, which may block the filter screen or filter port of the first filter chamber 1, causing the water flow discharged from the first filter chamber 1 to the drainage channel of the swimming pool robot to become smaller and smaller, and the water in the first filter chamber 1 cannot be discharged normally. In addition, the swimming pool robot continuously injects water into the first water inlet 12, causing the impact force of the water on the second one-way valve to increase;

[0039] When the first filter chamber 1 is blocked to a certain extent, the second one-way valve opens under the impact of the water flow. At this time, the second water inlet 22 is connected, and water can enter the second filter chamber 2 from the first filter chamber 1 through the second water inlet 22 in one direction. The second filter chamber 2 can be provided with a filter net or a filter port, and the water flow will flow from the filter net or the filter port of the second filter chamber 2 to the drainage channel of the swimming pool robot, and the dirt in the water will be filtered by the filter net or the filter port in the second filter chamber 2.

[0040] In addition, in some preferred embodiments of the present invention, the operator can also specifically control the first one-way valve to be more easily opened under the impact of water than the second one-way valve, for example:

[0041] The first one-way valve may include a first one-way cover plate 11, the second one-way valve may include a second one-way cover plate 21, and the first water inlet 12 and the second water inlet 22 may be through openings opened in the vertical direction, the first one-way cover plate 11 and the second one-way cover plate 21 are rotatably connected to the first water inlet 12 and the second water inlet 22 respectively, and the first one-way cover plate 11 covers the first water inlet 12 under the action of gravity, and the second one-way cover plate 21 covers the second water inlet 22 under the action of gravity, then at this time, the operator The staff can specifically control the weight of the first one-way cover plate 11 to be smaller than the weight of the second one-way cover plate 21. When the impact force of the water is greater than the gravity of the first one-way cover plate 11, the impact force generated by the water on the first one-way cover plate 11 can open the first one-way cover plate 11; when the impact force of the water is greater than the gravity of the second one-way cover plate 21, the impact force generated by the water on the second one-way cover plate 21 can open the second one-way cover plate 21; thereby ensuring that the first one-way cover plate 11 is easier to open under the action of the water flow than the second one-way cover plate 21;

[0042] The filter device can further ensure that the first filter chamber 1 fully absorbs the dirt in the filtered water, and only when the first filter chamber 1 is blocked and cannot drain water, the second one-way cover 21 will open and connect the second water inlet 22 under the impact of the water flow to activate the second filter chamber 2, thereby further reducing the frequency of overall blockage of the filter device.

[0043] In addition, in some other preferred embodiments of the present invention, the operator can also choose to stagger the first water inlet 12 and the second water inlet 22 to avoid excessive water flow in the swimming pool robot, which may cause the second one-way cover 21 to open and the second water inlet 22 when the first filter chamber 1 fails to fully absorb the filtered dirt.

[0044] The core invention point of the present invention is that the filter device provided by the present invention can connect the first filter chamber 1 and the second filter chamber 2 in sequence according to the state of the filter chamber absorbing and filtering dirt or the blockage state of the filter chamber, and ensure that when the filter device is filtering dirt in the water, only when the first filter chamber 1 fully absorbs the dirt in the filtered water or the first filter chamber 1 is blocked to a certain extent, the impact of the water flow on the second one-way cover plate 21 increases to the point where the second one-way cover plate 21 can be opened, and the water flow can enter the second filter chamber 2 through the second water inlet 22 to filter the dirt in the water with the second filter chamber 2.

[0045] The beneficial effect of the filter device provided by the present invention is that the filter device can effectively ensure that the first filter chamber 1 fully absorbs the dirt in the filtered water or the first filter chamber 1 is blocked to a certain extent before the second filter chamber 2 is connected, and the function of absorbing the dirt in the filtered water is continued through the second filter chamber 2. The filter device solves the problem that the existing filter device is easily blocked by dirt and cannot work normally when only absorbing and filtering a small amount of dirt. Therefore, the filter device provided by the present invention has better anti-blocking performance, which can reduce the overall blocking frequency and blocking speed of the filter device, so as to reduce the time cost of the operator to manage the filter device of the swimming pool robot.

[0046] Furthermore, it also includes a first elastic member and a second elastic member, the first elastic member is connected to the first one-way cover plate 11 to keep the first one-way cover plate in a covered state, and the second elastic member is connected to the second one-way cover plate 21 to keep the second one-way cover plate in a covered state.

[0047] It can be seen from the above description that in the filtering device provided by the present invention, the elastic force of the first elastic member can act on the first one-way cover plate 11, so as to ensure that the first one-way cover plate can remain in a closed state when not affected by the impact of water, so as to block the first water inlet 12; in addition, when the impact of water on the first one-way cover plate 11 is greater than the elastic force of the first elastic member on the first one-way cover plate, the first one-way cover plate can be opened and unidirectionally conduct the first water inlet 12;

[0048] The elastic force of the second elastic member can act on the second one-way cover plate 21, thereby ensuring that the second one-way cover plate can remain in a covered state when not affected by the impact of water, so as to block the second water inlet 22; when the impact of water on the second one-way cover plate 21 is greater than the elastic force of the second elastic member on the second one-way cover plate, the second one-way cover plate can be opened under the action of water and conduct the second water inlet 22.

[0049] Furthermore, in the filtering device provided by the present invention, the elastic force of the first elastic member is smaller than the elastic force of the second elastic member.

[0050] It can be seen from the above description that the elastic force of the first elastic member on the first one-way cover 11 can be specifically controlled to be smaller than the elastic force of the second elastic member on the second one-way cover 21. When the filtering device is just put into use, the second one-way cover 21 is more difficult to be opened under the action of water under the action of the second elastic member. In actual application, the operator can also choose to control the flow rate of water inhaled into the swimming pool robot (for example, controlling the speed of the water pump 5) to avoid the water impact force being too large and opening the first one-way cover 11 and the second one-way cover 21 at the same time; by controlling the flow rate of water inhaled into the swimming pool robot, the water impact force can be sufficient to open the first one-way cover 11, but not to open the second one-way cover 21.

[0051] Therefore, by controlling the elastic force of the first elastic member on the first one-way cover plate 11 to be smaller than the elastic force of the second elastic member on the second one-way cover plate 21, it can further ensure that each filter bin fully absorbs the dirt in the filtered water, and only when the filter bin is filled with dirt or blocked to a certain extent can the next-level filter bin be connected, thereby improving the utilization efficiency of each filter bin and correspondingly reducing the overall blockage frequency of the filter device.

[0052] In addition, in some other preferred embodiments of the present invention, the first elastic member and the second elastic member can also be replaced by magnetic members, that is, the first elastic member is a first magnetic member, the second elastic member is a second magnetic member, the first one-way cover plate 11 is magnetically adsorbed to the first water inlet 12 under the action of the first magnetic member, and the second one-way cover plate 21 is magnetically adsorbed to the second water inlet 22 under the action of the second magnetic member; when the impulse force generated by water on the first one-way cover plate 11 is greater than the magnetic attraction force of the first magnetic member, the first one-way cover plate 11 is magnetically adsorbed to the first water inlet 12 under the action of the first magnetic member. When the impact force of water on the second cover plate is greater than the magnetic attraction force of the second magnetic part, the second one-way cover plate 21 opens under the impact force of water; when the swimming pool robot stops cleaning, the impact force of water on the first one-way cover plate 11 is reduced, and the first one-way cover plate 11 covers the first water inlet 12 under the action of magnetic attraction of the first magnetic part to block the first water inlet 12, and the second one-way cover plate 21 covers the second water inlet 22 under the action of magnetic attraction of the second magnetic part to block the second water inlet 22.

[0053] In addition, in some other preferred embodiments of the present invention, the first one-way cover plate 11 is rotatably connected to the first water inlet 12, and the second one-way cover plate 21 is rotatably connected to the second water inlet 22. In order to prevent the first one-way cover plate 11 and the second one-way cover plate 21 from flipping over and affecting the fixing effect of the first elastic member and the second elastic member, a first limiting portion may be provided on the first filter bin 1, and a first limiting block matching the first limiting portion may be provided on the first one-way cover plate 11. When the first one-way cover plate 11 is opened, the first limiting block abuts against the first limiting portion; a second limiting portion may be provided on the second filter bin 2, and a second limiting block matching the second limiting portion may be provided on the second one-way cover plate 21. When the second one-way cover plate 21 is opened, the second limiting block abuts against the second limiting portion.

[0054] Furthermore, in the filtering device provided by the present invention, a handle 3 is provided on the second filtering chamber 2 .

[0055] It can be seen from the above description that in the filter device provided by the present invention, when the filter device needs to be cleaned, the handle piece 3 can facilitate the operator to take the filter device out of the swimming pool robot, and the operator can lift the filter device to the trash can on the swimming pool shore through the handle piece for cleaning. Providing the handle piece 3 on the second filter chamber 2 can facilitate the operator to operate and use it.

[0056] Furthermore, in the filtering device provided by the present invention, the filtering device comprises at least two of the second filtering chambers 2 .

[0057] From the above description, it can be seen that the second filter chamber 2 of the filter device provided by the present invention can be set to multiple, and each second filter chamber 2 is respectively connected to the first filter chamber 1, so the volume of each second filter chamber 2 is relatively small, and each second filter chamber 2 is respectively provided with a filter net or a filter port. When the first filter chamber 1 is blocked, the water filtering capacity and drainage performance of the filter device can be improved by setting multiple second filter chambers 2, and the space utilization rate of each second filter chamber 2 for accommodating dirt can be correspondingly improved to ensure that the second filter chamber 2 can fully absorb the dirt in the filtered water.

[0058] Furthermore, the filtering device provided by the present invention also includes a third filter tank and a third one-way valve, the third filter tank is provided with a third water inlet connected to the second filter tank 2, the third one-way valve is arranged in the third water inlet, and the third one-way valve is used to control the water flow from the second filter tank 2 to enter the third filter tank through the third water inlet in one direction.

[0059] From the above description, it can be seen that when the second filter chamber 2 absorbs and filters a sufficient amount of dirt, the second filter chamber 2 is prone to blockage, which causes the second filter chamber 2 to be unable to drain normally. At this time, the water in the second filter chamber 2 increases the impact of the third one-way valve. When the second filter chamber 2 is blocked to a certain extent, the third one-way valve opens under the action of water and connects to the third water inlet. Water enters the third filter chamber from the second filter chamber 2 through the third water inlet in a one-way direction. The third filter chamber can be provided with a third filter screen or a third filter port. Water is discharged from the third filter screen or the third filter port, and the dirt in the water is filtered by the filter screen or the filter port in the third filter chamber.

[0060] Among them, in some preferred embodiments of the present invention, the third one-way valve may include a third one-way cover plate and a third elastic member, the third elastic member is connected to the third one-way cover plate, and the elastic force of the third elastic member on the third one-way cover plate is greater than the elastic force of the second elastic member on the second one-way cover plate 21.

[0061] Of course, in other preferred embodiments of the present invention, the filter device can be provided with a plurality of filter chambers connected in sequence according to actual use requirements.

[0062] Furthermore, in the filtering device provided by the present invention, the first filtering chamber 1 is detachably connected to the second filtering chamber 2 .

[0063] It can be seen from the above description that when cleaning the filter device, the operator can disassemble and separate the first filter chamber 1 and the second filter chamber 2 to reduce the difficulty of cleaning the first filter chamber 1 and the second filter chamber 2.

[0064] In some preferred embodiments of the present invention, a card slot may be provided on the first filter chamber 1, and a buckle matching the card slot may be provided on the second filter chamber 2, so that the first filter chamber 1 and the second filter chamber 2 are detachably connected via the card slot and the buckle.

[0065] Furthermore, in the filtering device provided by the present invention, the first filtering chamber 1 is provided with an opening corresponding to the second water inlet 22 .

[0066] It can be seen from the above description that the first filter compartment 1 is provided with an opening to improve the alignment accuracy of the first filter compartment 1 and the second filter compartment 2 during installation.

[0067] Another object of the present invention is to provide a swimming pool robot, comprising the above-mentioned filtering device.

[0068] It can be seen from the above description that the beneficial effect of the present invention is that the filtering device of the swimming pool robot provided by the present invention has better anti-clogging performance, and the clogging frequency and clogging speed of the filtering device of the swimming pool robot are low.

[0069] Furthermore, the filtering device provided by the present invention also includes a shell 4 and a water pump 5, the shell 4 is provided with a water intake port 6 and a water outlet 7, a water flow channel is formed between the water intake port 6 and the water outlet 7, the filtering device is arranged in the water flow channel, and the water pump 5 is at least partially located in the water flow channel.

[0070] From the above description, it can be seen that when the swimming pool robot provided by the present invention is actually used, it sucks water from the swimming pool into the water flow channel through the water pump 5, and the water flows through: the water intake port 6-the filtering device-the water outlet 7 in sequence, and the filtering device can filter out the dirt in the water and discharge the filtered clean water to the water outlet 7.

[0071] In some other preferred embodiments of the present invention, the swimming pool robot also includes a driving assembly 9 and a roller brush 8. The driving device is arranged on the outer shell, and the roller brush 8 is arranged in the water suction port 6. In actual application, the swimming pool robot moves in the swimming pool through the driving device, and the roller brush 8 can rotate. When the swimming pool robot moves, the roller brush 8 can push the dirt in the water to the water suction port 6, so that the water suction port 6 can suck in the dirt in the swimming pool water and filter the dirt in the swimming pool water through the filtering device.

[0072] Embodiment 1

[0073] like Figures 1 to 6 As shown, embodiment 1 of the present invention is: a filtering device, comprising a first filter chamber 1, a second filter chamber 2, a first one-way valve and a second one-way valve, the first filter chamber 1 is provided with a first water inlet 12 connected to the outside, the second filter chamber 2 is provided with a second water inlet 21 connected to the first filter chamber 1, the first one-way valve is provided at the first water inlet 12, and the second one-way valve is provided at the second water inlet 21; wherein, external water flows into the first filter chamber 1 through the first water inlet 12, and water flows in the first filter chamber 1 enters the second filter chamber 2 through the second water inlet 21, the first one-way valve is used for unidirectional conduction or isolation of the first water inlet 12, and the second one-way valve is used for unidirectional conduction or isolation of the second water inlet 21.

[0074] Please refer to Figure 3 and Figure 4 The first filter chamber 1 and the second filter chamber 2 are detachably connected. The first filter chamber 1 is provided with a first water inlet 12 which is connected to the outside of the filter device. The first one-way valve is provided in the first water inlet 12. Water outside the filter device enters the first filter chamber 1 through the first water inlet 12. A first filter screen is provided on the side wall of the first filter chamber 1. Water in the first filter chamber 1 can flow out from the first filter screen.

[0075] The second filter chamber 2 is provided with a second water inlet 22 which is connected to the first filter chamber 1, and a second one-way valve is provided in the second water inlet 22. The water in the first filter chamber 1 enters the second filter chamber 2 through the second water inlet 22. A second filter screen is provided on the side wall of the second filter chamber 2, and the water in the second filter chamber 2 can flow out from the second filter screen.

[0076] like Figures 5 and 6 As shown, the filtering device provided in the first embodiment can be specifically applied to a swimming pool robot.

[0077] In the first embodiment of the present invention, a swimming pool robot equipped with the above-mentioned filtering device is also provided, which includes a shell 4, a water pump 5, a driving component 9 and a roller brush 8. The driving component 9 is arranged on the shell 4, and the driving component 9 is used to drive the swimming pool robot to move in the water of the swimming pool. A water suction port 6 and a water outlet 7 are opened on the shell 4, and the roller brush 8 is arranged in the water suction port 6. The filtering device is arranged between the water suction port 6 and the water outlet 7, and an inlet channel is formed between the filtering device and the water suction port 6, and a drainage channel is formed between the filtering device and the water outlet 7. The water pump 5 is at least partially located in the water flow channel, so that a certain suction effect is generated through the water flow channel through the water pump 5.

[0078] The principle of the swimming pool robot provided in the first embodiment for cleaning dirt in water is briefly described as follows:

[0079] The swimming pool robot moves in the water under the action of the driving device, and the roller brush 8 rotates to roll the dirt in the water to the water suction port 6. When the water pump 5 is working, the water flow channel generates suction force on the water under the action of the water pump 5, and controls the water to be sucked into the water channel from the suction port, and the water forms a water flow with a certain impulse in the water inlet channel. The first one-way valve is connected to the first water inlet 12 under the impulse of the water flow, and the water flow and the dirt in the water flow enter the first filter chamber 1 from the water inlet channel through the first water inlet 12 in one direction;

[0080] When the first filter chamber 1 is in an empty state: water flows out from the first filter screen to the drainage channel, and then is discharged from the drainage channel to the water outlet 7. The impurities in the water are filtered in the first filter chamber 1, and the water flows out from the filter screen. The impact of the water flow in the first filter chamber 1 on the second one-way valve is small and is not enough to open the second one-way valve. Therefore, the second one-way valve keeps blocking the second water inlet 22.

[0081] When the first filter chamber 1 is in a full state: as the amount of dirt in the first filter chamber 1 increases, the first filter screen is gradually blocked by the dirt, and water cannot be discharged from the first filter screen. The impact of the water flow in the first filter chamber 1 on the second one-way cover 21 increases, and the second one-way valve can open the second water inlet 22 under the impact of the water flow. Water enters the second filter chamber 2 from the first filter chamber 1 through the second water inlet 22 in a one-way manner, and the water flows out to the drainage channel, and the dirt in the water is filtered in the second filter chamber 2.

[0082] Embodiment 2

[0083] Embodiment 2 of the present invention is a further improvement on the first one-way valve and the second one-way valve in Embodiment 1. Embodiment 2 of the present invention is as follows: the first one-way valve includes a first elastic member and a first one-way cover plate 11, the second one-way valve includes a second elastic member and a second one-way cover plate 11, the first elastic member is connected to the first one-way cover plate 11, and the first one-way cover plate 11 maintains a covering state, the second elastic member is connected to the second one-way cover plate 21, and the second one-way cover plate 21 maintains a covering state.

[0084] The elastic force of the first elastic member can act on the first one-way cover plate 11, thereby ensuring that the first one-way cover plate can remain in a closed state when not affected by the impact of water, so as to block the first water inlet 12; in addition, when the impact of water on the first one-way cover plate 11 is greater than the elastic force of the first elastic member on the first one-way cover plate, the first one-way cover plate can be opened and unidirectionally conduct the first water inlet 12;

[0085] The elastic force of the second elastic member can act on the second one-way cover plate 21, thereby ensuring that the second one-way cover plate can remain in a covered state when not affected by the impact of water, so as to block the second water inlet 22; when the impact of water on the second one-way cover plate 21 is greater than the elastic force of the second elastic member on the second one-way cover plate, the second one-way cover plate can be opened under the action of water and conduct the second water inlet 22.

[0086] Embodiment 3

[0087] The third embodiment of the present invention is a further improvement on the first one-way valve and the second one-way valve in the second embodiment. The third embodiment of the present invention is as follows: the elastic force of the first elastic member is smaller than the elastic force of the second elastic member.

[0088] By controlling the elastic force of the first elastic member on the first one-way cover plate 11 to be smaller than the elastic force of the second elastic member on the second one-way cover plate 21, it can further ensure that each filter bin fully absorbs the dirt in the filtered water, and only when the filter bin is filled with dirt or blocked to a certain extent can the next-level filter bin be connected, thereby improving the utilization efficiency of each filter bin and correspondingly reducing the overall blockage frequency of the filter device.

[0089] Embodiment 4

[0090] Embodiment 4 of the present invention is a further improvement on embodiment 3. The only difference between embodiment 4 and embodiment 3 is that in embodiment 4, the filtering device also includes a third filter bin and a third one-way valve. The third filter bin is detachably connected to the second filter bin 2, and the third filter bin is provided with a third water inlet which is through-connected to the second filter bin 2. A third one-way valve is provided in the third water inlet. The third one-way valve includes a third one-way cover plate and a third elastic member connected to the third one-way cover plate, wherein the elastic force of the third elastic member is greater than the elastic force of the second elastic member.

[0091] In the fourth embodiment, a handle 2 is provided on the top of the third filter chamber. When the filter device needs to be cleaned, the operator can more conveniently take the filter device out of the swimming pool robot through the handle 2.

[0092] In the filter device provided in the fourth embodiment, when the second filter chamber 2 is in a full-chamber state, the third filter chamber can be further activated to achieve the effect of reducing the clogging frequency and clogging speed of the filter device.

[0093] In summary, the filter device provided by the present invention is provided with at least two filter chambers, and at least two filter chambers can be activated in sequence. The next filter chamber will be activated only when the previous filter chamber is filled with dirt or the previous filter chamber is blocked to a certain extent. This improves the space utilization rate of each filter chamber and enhances the overall anti-blocking ability of the filter device. The blocking frequency and blocking speed of the filter device are lower.

[0094] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent transformations made using the contents of the present invention's specification and drawings, or directly or indirectly applied in related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A filtering device, characterized in that: It includes a first filter tank, a second filter tank, a first one-way valve and a second one-way valve, the first filter tank is provided with a first water inlet connected to the outside, the second filter tank is provided with a second water inlet connected to the first filter tank, the first one-way valve is arranged at the first water inlet, and the second one-way valve is arranged at the second water inlet; wherein, external water flows into the first filter tank through the first water inlet, and water in the first filter tank enters the second filter tank through the second water inlet, the first one-way valve is used for unidirectional conduction or isolation of the first water inlet, and the second one-way valve is used for unidirectional conduction or isolation of the second water inlet.

2. The filtering device according to claim 1, characterized in that: The first one-way valve includes a first elastic member and a first one-way cover plate, and the second one-way valve includes a second elastic member and a second one-way cover plate. The first elastic member is connected to the first one-way cover plate to maintain a covering state with the first one-way cover plate, and the second elastic member is connected to the second one-way cover plate to maintain a covering state with the second one-way cover plate.

3. The filtering device according to claim 2, characterized in that: The elastic force of the first elastic member is smaller than the elastic force of the second elastic member.

4. The filtering device according to claim 1, characterized in that: The second filter bin is provided with a handle.

5. The filtering device according to claim 1, characterized in that: The filtering device comprises at least two of the second filtering chambers.

6. The filtering device according to claim 1, characterized in that: It also includes a third filter bin and a third one-way valve. The third filter bin is provided with a third water inlet which is connected to the second filter bin. The third one-way valve is provided in the third water inlet. The third one-way valve is used for unidirectionally conducting or blocking the third water inlet.

7. The filtering device according to claim 1, characterized in that: The first filter compartment is detachably connected to the second filter compartment.

8. The filtering device according to claim 7, characterized in that: The first filter tank is provided with an opening corresponding to the second water inlet.

9. A swimming pool robot, characterized in that: A filter device comprising any one of claims 1 to 8.

10. The swimming pool robot according to claim 9, characterized in that: It also includes a shell and a water pump. The shell is provided with a water inlet and a water outlet. A water flow channel is formed between the water inlet and the water outlet. The filtering device is arranged in the water flow channel. The water pump is at least partially located in the water flow channel.

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