A pool cleaning robot with a fairing

Abstract

The present invention belongs to the technical field of pool cleaning equipment, and discloses a pool cleaning robot with a flow guide cover, which includes a cleaning robot body. An inhalation flow channel, a garbage bin and a filter box are arranged inside the cleaning robot body. One end of the inhalation flow channel is provided with a flow port communicating with the outside, and the other end communicates with the garbage bin. A filter screen is arranged between the garbage bin and the filter box. A drain port and a water pump are arranged inside the filter box. The flow guide cover is further included, and the flow guide cover is installed at one end of the garbage bin away from the inhalation flow channel. The side of the flow guide cover facing the inhalation flow channel is ellipsoidal. Through the setting of the flow guide cover, the present invention can evenly guide the liquid and garbage inhaled by the inhalation flow channel onto the filter screen. On the one hand, it avoids the energy loss caused by the direct impact of the fluid on the top of the garbage bin and weakens the inhalation power of the flow port. On the other hand, it can disperse the water flow in four directions, evenly distribute the garbage on the filter screens in four directions, avoid partial blockage of the filter screen, and improve the working time of the cleaning robot.

Description

Technical Field

[0001] The present invention relates to the technical field of pool cleaning equipment, and particularly relates to a pool cleaning robot with a flow guide cover. Background Art

[0002] With the rapid development of the times, many families can install swimming pools (including underground and above-ground swimming pools) at home. Swimming pools are places for people to have entertainment and play. However, whether it is an open-air pool or an indoor pool, after being used for a period of time, there will be some garbage or bacteria at the bottom of the pool. Especially, dirt adheres to the bottom of the pool, and normal circulating water filtration cannot effectively clean it. Therefore, the pool needs to be cleaned regularly.

[0003] Pool cleaning robots (including surface and underwater robots) can perform pool cleaning work. By sucking in water with garbage and filtering it through the garbage bin, the clean water is discharged.

[0004] In order to ensure the cleaning effect, it is necessary to effectively improve the suction power of the robot. Therefore, it is necessary to optimize the flow channel of the robot to effectively clean the garbage, and the garbage bin needs to maintain a certain anti-blocking ability to improve the endurance of the robot. This requires optimizing the flow channel and garbage bin of the robot. Since most of the propeller-driven underwater robots do not have optimized internal flow channels, the maximum suction power of the water pump is not stimulated, and at the same time, the garbage bin is also easily blocked; when the suction power is large and the water flow speed is fast, due to the action of resistance impact in the garbage bin, the water flow will lose more power, resulting in the disadvantage of low efficiency. Summary of the Invention

[0005] Aiming at the technical problems in the prior art, the present invention provides a pool cleaning robot with a flow guide cover. On the one hand, it can effectively improve the suction power of the flow port of the cleaning robot, thereby improving the recovery rate of garbage. On the other hand, it can make the distribution of garbage on the filter screen in the garbage bin more uniform and extend the service life of the garbage bin.

[0006] The technical solution includes a cleaning robot body. An inhalation flow channel, a garbage bin and a filter box are arranged inside the cleaning robot body. One end of the inhalation flow channel is provided with a flow port communicating with the outside, and the other end communicates with the garbage bin. A filter screen is arranged between the garbage bin and the filter box. A drain port communicating with the outside and a water pump for draining water are arranged inside the filter box. It further includes a flow guide cover. The flow guide cover is installed at one end of the garbage bin away from the inhalation flow channel and is directly opposite to the inhalation flow channel. The side of the flow guide cover facing the inhalation flow channel is ellipsoidal.

[0007] Preferably, the garbage bin is located at the center of the cleaning robot body, and the flow guide cover is installed at the center of the garbage bin.

[0008] Preferably, there are two filter boxes, which are symmetrically arranged on both sides of the garbage bin.

[0009] Preferably, for the length L, width W, and height H of the garbage bin, and the length l1, width w1, and height h1 of the flow guide cover, where l1 = 0.7L - 0.9L, w1 = 0.7W - 0.9W, and h1 = 0.1H - 0.3H.

[0010] Preferably, the side of the flow guide cover away from the suction channel is an inward concave structure matching an ellipsoid, and a handle is arranged inside the inward concave structure.

[0011] Preferably, the water pump includes a motor and an impeller. The impeller is fixedly connected to the output shaft of the motor, and the impeller is installed at one end close to the drain outlet.

[0012] Preferably, the distance from the impeller to the center line of the suction channel is S, and the diameter of the impeller is R, where S ≤ 4R.

[0013] Preferably, a plurality of driving wheels for walking are provided at the bottom of the cleaning robot body.

[0014] Beneficial effects:

[0015] 1. Through the setting of the flow guide cover installed on the top of the garbage bin and facing the suction channel, the present invention can evenly introduce the water flow and garbage sucked by the suction channel onto the filter screen. On the one hand, it avoids the energy loss caused by the direct impact of the fluid on the top of the garbage bin and weakens the suction power at the flow port. On the other hand, the flow guide cover can disperse the water flow in four directions, so that the garbage can be evenly distributed on the filter screens in four directions, avoiding the reduction of the flow rate to the water pump due to partial blockage of the filter screen, thus preventing the occurrence of the water pump failure phenomenon, and further achieving the purpose of increasing the working duration of the cleaning robot. In addition, the flow guide cover is directly arranged on the garbage bin of the pool robot, so that the water flow can directly rush to the flow guide cover from the suction channel. Compared with setting the flow guide cover on the side wall of the cleaning robot, the number of water flow turns and the flow channel length are reduced, thereby further improving the efficiency.

[0016] 2. Through the arrangement that the garbage bin and the flow guide cover are both located at the center of the corresponding structure and the two filter boxes are symmetrically arranged on both sides of the garbage bin, the present invention can make the acting forces of the two water pumps on the suction channel equal, so that the water flow can directly flow to the flow guide cover, avoiding the water flow from deflecting to one side, and further increasing the working duration of the cleaning robot.

[0017] 3. By restricting the dimensional relationship between the garbage bin and the flow guide cover, the present invention can achieve the best flow guiding effect of the flow guide cover and can preferably extend the time of garbage bin blockage.

[0018] 4. Through the concave structure and the handle arranged inside the concave structure, the present invention can save space, thereby optimizing the volume of the garbage bin and facilitating the storage of more garbage.

[0019] 5. In the present invention, the distance from the impeller to the center line of the suction channel is S, and the diameter of the impeller is R, where S ≤ 4R. This setting can enable the water pump to maintain a large suction force and prevent the formation of turbulent flow in the space between the guide cover and the suction channel. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is the front view of the overall internal structure of the present invention;

[0021] Figure 2 It is the left view of the overall internal structure of the present invention.

[0022] In the figure: 1. Cleaning robot body; 2. Suction channel; 21. Channel opening; 3. Garbage bin; 4. Filter box; 41. Drainage port; 5. Filter screen; 6. Water pump; 61. Motor; 62. Impeller; 7. Guide cover; 8. Driving wheel. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] Next, in conjunction with the drawings in the embodiments of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts fall within the protection scope of the present invention.

[0024] The present invention provides a pool cleaning robot with a guide cover, as Figure 1 , Figure 2 shown, including a cleaning robot body 1. An inhalation channel 2, a garbage bin 3, and a filter box 4 are arranged inside the cleaning robot body 1. A plurality of driving wheels 8 for walking are arranged at the bottom of the cleaning robot body 1. One end of the inhalation channel 2 is provided with a channel opening 21 communicating with the outside, and the other end communicates with the garbage bin 3. A filter screen 5 is arranged between the garbage bin 3 and the filter box 4. A drainage port 41 communicating with the outside and a water pump 6 for draining water are arranged inside the filter box 4. It further includes a guide cover 7. The guide cover 7 is installed at one end of the garbage bin 3 away from the inhalation channel 2 and is directly opposite to the inhalation channel 2. The side of the guide cover 7 facing the inhalation channel 2 is ellipsoidal.

[0025] In this embodiment, through the arrangement of the flow guide cover 7 installed at the top of the garbage bin 3 and facing the suction channel 2, the water flow and garbage sucked by the suction channel 2 can be evenly guided onto the filter screen 5. On the one hand, it avoids the energy loss caused by the direct impact of the fluid on the top of the garbage bin 3 and weakens the suction power of the flow port 21. On the other hand, the flow guide cover 7 can disperse the water flow in four directions, so that the garbage can be evenly distributed on the filter screens 5 in four directions, avoiding the reduction of the flow rate to the water pump 6 due to the local blockage of the filter screen 5, thereby preventing the failure of the water pump 6, and further achieving the purpose of increasing the working duration of the cleaning robot. In addition, the flow guide cover 7 is directly arranged on the garbage bin 3 of the pool robot, so that the water flow can directly impact the flow guide cover 7 from the suction channel 2. Compared with arranging the flow guide cover 7 on the side wall of the cleaning robot, it reduces the number of water flow turns and the length of the flow channel, thereby further improving the efficiency. Through fluid simulation and experiments with and without the flow guide cover 7, the suction power of the flow port 21 of the cleaning robot with the optimized flow guide cover 7 is increased by 15%, and the time when the filter screen 5 is completely blocked is increased by 20%.

[0026] Preferably, as Figure 1 、 Figure 2 shown, the garbage bin 3 is located at the center of the cleaning robot body 1, and the flow guide cover 7 is installed at the center of the garbage bin 3; there are two filter boxes 4, and the two filter boxes 4 are symmetrically arranged on both sides of the garbage bin 3, that is, the two water pumps 6 are symmetrically arranged on both sides of the flow guide cover 7.

[0027] In this embodiment, through the arrangement that the garbage bin 3 and the flow guide cover 7 are both located at the corresponding structure centers and the two filter boxes 4 are symmetrically arranged on both sides of the garbage bin 3, the acting forces of the two water pumps 6 on the suction channel 2 can be made equal, so that the water flow can directly flow towards the flow guide cover 7, avoiding the water flow from deflecting to one side, and further increasing the working duration of the cleaning robot.

[0028] Preferably, as Figure 1 、 Figure 2 shown, the length L, width W, and height H of the garbage bin 3, and the length l1, width w1, and height h1 of the flow guide cover 7, where l1 = 0.7L - 0.9L, w1 = 0.7W - 0.9W, and h1 = 0.1H - 0.3H.

[0029] In this embodiment, through the limiting setting of l1 = 0.7L - 0.9L, w1 = 0.7W - 0.9W, and h1 = 0.1H - 0.3H, through fluid simulation experiments, within this size range, the flow guiding effect of the flow guide cover 7 can reach the best, and the time for the garbage bin 3 to be blocked can be better extended.

[0030] Preferably, as Figure 1 、 Figure 2As shown, the side of the fairing 7 away from the suction channel 2 is a concave structure matching the ellipsoid, and a handle is arranged inside the concave structure.

[0031] In this embodiment, by providing the concave structure and arranging the handle inside the concave structure, space can be saved, thereby optimizing the volume of the trash bin 3 and facilitating the storage of more trash.

[0032] Preferably, as Figure 1 shown, the water pump 6 includes a motor 61 and an impeller 62. The impeller 62 is fixedly connected to the output shaft of the motor 61. The impeller 62 is installed at one end close to the drain port 41. The distance from the impeller 62 to the center line of the suction channel 2 is S, and the diameter of the impeller 62 is R, where S ≤ 4R.

[0033] In this embodiment, by setting the distance from the impeller 62 to the center line of the suction channel 2 as S, the diameter of the impeller 62 as R, where S ≤ 4R, the water pump 6 can maintain a large suction force and no turbulent flow will be formed in the space between the fairing 7 and the suction channel 2.

[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them. Any other modifications or equivalent replacements made by those of ordinary skill in the art to the technical solutions of the present invention should be covered within the scope of the claims of the present invention as long as they do not depart from the spirit and scope of the technical solutions of the present invention.

Claims

1. A pool cleaning robot with a fairing, comprising a cleaning robot body (1). An inhalation channel (2), a garbage bin (3) and a filter box (4) are arranged inside the cleaning robot body (1). One end of the inhalation channel (2) is provided with a flow port (21) communicating with the outside, and the other end communicates with the garbage bin (3). A filter screen (5) is arranged between the garbage bin (3) and the filter box (4). A drain port (41) communicating with the outside and a water pump (6) for draining water are arranged inside the filter box (4). It is characterized in that, The water pump (6) is arranged adjacent to the side wall of the garbage bin (3), and further includes a flow guide cover (7). The flow guide cover (7) is installed at one end of the garbage bin (3) away from the suction channel (2) and is opposite to the suction channel (2). The side of the flow guide cover (7) facing the suction channel (2) is ellipsoidal.

2. The pool cleaning robot with a fairing according to claim 1, characterized in that, The garbage bin (3) is located at the center of the cleaning robot body (1), and the flow guide cover (7) is installed at the center of the garbage bin (3).

3. The pool cleaning robot with a fairing according to claim 2, characterized in that, There are two filter boxes (4), and the two filter boxes (4) are symmetrically arranged on both sides of the garbage bin (3).

4. A pool cleaning robot with a fairing according to any one of claims 1 to 3, characterized in that, The length L, width W, and height H of the garbage bin (3), and the length l1, width w1, and height h1 of the flow guide cover (7), where l1 = 0.7L - 0.9L, w1 = 0.7W - 0.9W, and h1 = 0.1H - 0.3H.

5. A pool cleaning robot with a fairing according to any one of claims 1 to 3, characterized in that, The side of the flow guide cover (7) away from the suction channel (2) is an inner concave structure matching the ellipsoid, and a handle is arranged in the inner concave structure.

6. A pool cleaning robot with a fairing according to any one of claims 1 to 3, characterized in that The water pump (6) includes a motor (61) and an impeller (62). The impeller (62) is fixedly connected to the output shaft of the motor (61), and the impeller (62) is installed at one end close to the drain port (41).

7. A pool cleaning robot with a fairing according to claim 6, wherein, The distance from the impeller (62) to the center line of the suction channel (2) is S, and the diameter of the impeller (62) is R, where S ≤ 4R.

8. A pool cleaning robot with a fairing according to any one of claims 1 to 3, characterized in that, A plurality of drive wheels (8) for walking are arranged at the bottom of the cleaning robot body (1).

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