Filter apparatus for underwater robot, and underwater robot
By employing an irregularly shaped structure and multi-layer filtration design in the underwater robot filtration device, the problems of incomplete filtration and complex structure in existing technologies have been solved, enabling effective collection and easy cleaning of different types of waste.
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- YITUO ELECTRIC CO LTD
- Filing Date
- 2025-12-26
- Publication Date
- 2026-07-30
AI Technical Summary
Existing underwater robot filtration devices used in swimming pools have large filter holes, making it difficult to effectively collect fine particles and flocculent matter. Furthermore, their complex structure makes them inconvenient to clean.
Design a filtration device for underwater robots, which adopts an irregularly shaped sidewall and a multi-layer filtration structure, including an irregularly shaped sidewall, a filter wall, a first side ear and a second side ear, and sets different filter ports and filter bodies to achieve classified collection and multi-layer filtration of garbage.
It enables effective collection and classification of different types of waste, improves filtration efficiency, and is simple in structure, easy to use, and easy to clean.
Smart Images

Figure CN2025145871_30072026_PF_FP_ABST
Abstract
Description
A filtration device for underwater robots and an underwater robot Technical Field
[0001] This utility model relates to the field of intelligent cleaning equipment technology, especially swimming pool cleaning technology, and more specifically, to a filtration device for underwater robots and an underwater robot. Background Technology
[0002] Against the backdrop of booming technological innovation and high-end manufacturing, the robotics industry has undoubtedly become a global focus. Many major economies regard the robotics industry as a national strategy, committed to maintaining and enhancing their manufacturing competitiveness through development in this field. Particularly in the smart home sector, the application of robots has penetrated into daily life, with various robots gradually replacing human labor to complete complex household chores.
[0003] In the specific field of pool cleaning technology, underwater robots, as a professional pool cleaning device, are becoming increasingly important. These robots are specifically designed for cleaning private or public pools, significantly saving labor costs and offering a more thorough and efficient cleaning experience compared to traditional manual methods. As people use pools, their demands for water quality are also increasing; therefore, they constantly monitor water quality changes and have higher requirements for cleaning fine particles, suspended solids, and flocculent matter.
[0004] Existing underwater robots for swimming pools work by sucking in wastewater, filtering it through a filtration system inside the machine, and then draining the water out of the outlet while debris remains inside the filter. However, current underwater robots have relatively large filter pores. While they can collect coarse debris like leaves and small stones, they cannot collect fine particles or flocculent matter. This is because if the filter screen is too dense, flocculent matter can easily become clogged by settling directly on the top.
[0005] Therefore, some machines on the market have filters in two or more chambers, with different pore sizes for each chamber. While this allows for different filtration effects in different chambers, the filtration effect is not ideal because the two chambers are interconnected. Furthermore, the complex structure of multiple interconnected chambers makes cleaning and rinsing inconvenient.
[0006] Therefore, how to make underwater robots with good filtration effect and easy cleaning is a technical problem that the industry urgently needs to solve.
[0007] Utility Model Content
[0008] The present invention aims to overcome the shortcomings of the prior art and provide a filtration device and an underwater robot for underwater robots, which solves the problems of incomplete filtration, complex structure and difficulty in cleaning of existing swimming pool robots.
[0009] The technical solution adopted by this utility model is to provide a filtration device for underwater robots, including a filtration device body. The bottom of the body is provided with a water inlet, and a plurality of filter holes are provided on the side wall of the body. A hollow cavity is provided inside the body, and at least three interconnected and surrounding side walls are provided on the side of the body. At least one side wall is an irregular structure, and the irregular structure side wall forms a second filter cavity towards the cavity or outside of the filtration device body. The left side of the irregular structure side wall is connected to a first side wall, and the right side of the irregular structure side wall is connected to a second side wall.
[0010] The irregularly shaped sidewalls create an uneven inner surface, allowing different types of waste to be swept to different areas for collection by water flow, thus achieving the effect of sorting and collecting waste.
[0011] Furthermore, the sidewall of the irregular structure includes a first side ear connected to the first side wall and a second side ear connected to the second side wall. A filter wall is provided between the first side ear and the second side ear, and filter ports are provided on the filter wall, the first side ear, and the second side ear.
[0012] The first and second side ears are tilted towards or outside the filter body, creating different longitudinal areas on their sides. The distance of the water flow and the contact area affect the water flow rate, causing the waste to be washed to different areas where it remains.
[0013] Furthermore, the filter wall, the first side ear, and the second side ear are connected to each other to form a U-shaped structure that is thicker at the top and thinner at the bottom or thicker at the bottom and thinner at the top, or the filter wall, the first side ear, and the second side ear are connected to each other to form a wedge shape.
[0014] Furthermore, the projection of the filter wall is parallel to the edge of the inlet. This parallelism allows water to smoothly reach all areas after entering through the inlet without being obstructed.
[0015] Furthermore, a first connecting wall is provided between the first sidewall and the first side ear, and a second connecting wall is provided between the second sidewall and the second side ear.
[0016] Furthermore, a filter body is provided on the filter port or filter hole, and the filter body is one or more of the following: filter screen, filter cotton, filter paper, filter bag, activated carbon filter layer, and granular filter layer. When multiple components are combined, they are stacked together.
[0017] An underwater robot includes an underwater robot body, with a suction port at the bottom of the underwater robot body and a water outlet at the side and / or top of the underwater robot body.
[0018] The underwater robot is equipped with a walking mechanism at its lower part, which can be either wheels or tracks.
[0019] The underwater robot uses a filtration device located inside the body and in the water flow channel between the suction port and the water outlet, with the suction port and the water inlet connected to each other.
[0020] Furthermore, the body is also equipped with a second filtration device, which is located between the underwater robot's filtration device and the water outlet.
[0021] Furthermore, the second filter device is provided with a suction wall, which is consistent with the irregular sidewall on the filter device body and is fitted together with each other.
[0022] Furthermore, the second filtration device is equipped with a second filter element, which is one or more of the following: filter screen, filter cotton, filter paper, filter bag, activated carbon filter layer, and granular filter layer. When multiple elements are combined, they are stacked together.
[0023] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0024] This utility model provides a filtration device for underwater robots and an underwater robot, which has a simple structure, is easy to use, and can collect different types of garbage; it can also improve the filtration effect through a multi-layer filtration structure. Attached Figure Description
[0025] Figure 1 is a schematic diagram of the structure of a filtration device for an underwater robot in Embodiment 1.
[0026] Figure 2 is a schematic diagram of the structure of a filtration device for an underwater robot in Example 1.
[0027] Figure 3 is a structural diagram of a filter device for an underwater robot in Example 1, where one of its side walls has an irregular shape.
[0028] Figure 4 is a schematic diagram of the underwater robot filter device installed in Example 1.
[0029] Figure 5 is an exploded structural diagram of the underwater robot when the filter device for the underwater robot is installed in Example 1.
[0030] Labeling: Filter device 100, inlet 101, second filter chamber 102; first side wall 110, second side wall 111, first side ear 112, second side ear 113, filter wall 114, first connecting wall 115, second connecting wall 116; underwater robot 120, walking wheel 121, walking track 122, outlet 123, second filter device 124. Detailed Implementation
[0031] The accompanying drawings are for illustrative purposes only and should not be construed as limiting the scope of this invention. To better illustrate the following embodiments, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.
[0032] Example 1
[0033] As shown in Figures 1-3, this embodiment provides a filter device 100 for an underwater robot (hereinafter referred to as "filter device body", "filter device" or "body"), including a filter device 100 body. The bottom of the body is provided with a water inlet 101. A plurality of filter holes are provided on the side wall of the body. A hollow cavity is provided inside the body. At least three interconnected and surrounding side walls are provided on the side of the body. At least one side wall is an irregular structure or a curved structure. The irregular structure or curved structure is bent or inclined to each other in both the longitudinal and transverse directions, so that the side wall of the irregular structure forms a second filter cavity 102 towards the cavity or the outside of the filter device 100 body. The left side of the side wall of the irregular structure is connected to a first side wall 110, and the right side of the side wall of the irregular structure is connected to a second side wall 111.
[0034] The underwater robot filter device 100 of this embodiment may or may not have a top cover. When it has a top cover, the top cover, side walls, and bottom wall together form an enclosed cavity, allowing waste to be collected within the cavity. When it does not have a top cover, after being installed on the underwater robot, the cover of the underwater robot contacts the top of the side wall of the filter device. Thus, the cover, side walls, and bottom wall of the underwater robot together form an enclosed cavity, which also allows waste to be collected within the cavity, achieving the same effect.
[0035] The irregularly shaped sidewalls create an uneven inner surface, allowing different types of waste to be swept to different areas for collection by water flow, thus achieving the effect of sorting and collecting waste.
[0036] In one embodiment, the side wall of the special-shaped structure includes a first side ear 112 connected to the first side wall 110 and a second side ear 113 connected to the second side wall 111. A filter wall 114 is provided between the first side ear 112 and the second side ear 113. Filter openings are provided on the filter wall 114, the first side ear 112, and the second side ear 113. The first side ear 112 and the second side ear 113 mainly serve to form different sides. However, in this embodiment, there are no specific requirements for the inclination angles, lengths, swinging directions, etc. of the first side ear 112 and the second side ear. As long as they are arranged like this, the effects of the present utility model can be achieved.
[0037] The first side ear 112 and the second side ear 113 are inclined and placed inside or outside the body of the filtering device 100, so that there are different regions longitudinally on their sides. The distance and contact area of the water flow affect the water flow velocity, so the garbage is washed to different regions and stays there.
[0038] In one embodiment, the filter wall 114, the first side ear 112, and the second side ear 113 are connected to form a U-shaped structure that is thicker at the top and thinner at the bottom or thicker at the bottom and thinner at the top. Alternatively, the filter wall 114, the first side ear 112, and the second side ear 113 are connected to form a wedge shape. The connecting part of the U-shaped structure can also be set as a square corner or a rounded corner. When set as a square corner, its cross-section is generally still in the shape of a "匚". In this embodiment, in addition to the mentioned U-shaped and "匚" shapes, the shape during its setting can also be adjusted according to the actual scenario and requirements, and no exhaustive listing is carried out in this embodiment.
[0039] In one embodiment, the projection or cross-section of the filter wall 114 is parallel to the edge of the water inlet 101. By setting them parallel to each other, the water can smoothly reach each region after entering from the water inlet 101 without being blocked midway.
[0040] In one embodiment, a first connecting wall 115 is further provided between the first side wall 110 and the first side ear 112, and a second connecting wall 116 is further provided between the second side wall 111 and the second side ear 113.
[0041] When the body of the filtering device 100 for the underwater robot is too large, if the first side ear 112 and the second side ear 113 are directly set, this will cause a relatively large span between the first side ear 112 and the second side ear 113. At this time, adding the first connecting wall 115 and the second connecting wall 116 can optimize its structure and make the effect more obvious.
[0042] In one embodiment, a filter body (not shown in the figure) is provided on the filter opening or filter hole. The filter body is one or a combination of a filter net, a filter cotton, a filter paper, a filter bag, an activated carbon filter layer, and a particle filter layer.
[0043] In this embodiment, when a filter body is installed on the filter port or filter hole, firstly, a filter screen is installed on the filter port or filter hole. The filter screen can be a fiber filter screen or a metal filter screen (such as stainless steel). To prevent clogging, the pore size of this filter screen can be relatively large. Then, a layer of filter cotton is installed on the inner or outer side of the filter screen. In this embodiment, the filter screen and the filter cotton together form the filter body described in this embodiment.
[0044] In this embodiment, the filter cotton has a smaller pore size than the filter screen, allowing it to filter finer dirt. It can be used in combination or separately. When used alone, the filter cotton can be removed and cleaned using only the underwater robot filter device 100. At this time, small stones, dead branches, and coarse debris settled at the bottom of the pool are collected within the filter device 100. When it floats to the surface, it can simultaneously clean floating leaves, plastic bags, fruit peels, etc., achieving a coarse filtration effect. After cleaning the pool bottom and / or the pool surface, the filter cotton is reinstalled for cleaning. Suspended matter, flocculent matter, and fine particulate matter in the pool are adsorbed onto the filter cotton. After cleaning, the filter cotton can be removed and washed. Its principle is similar to that of aquarium filters, but its disadvantage is that the filter cotton needs to be cleaned or replaced after each cleaning.
[0045] In this embodiment, filters with different mesh sizes can be installed on the first sidewall 110, the first side ear 112, the connecting wall, the second side ear 113, and the second sidewall 111. This allows for the collection of different types of waste in different areas without causing clogging. For example, if a filter with a larger mesh size is installed on the first sidewall 110, the first side ear 112, the second side ear 113, and the second sidewall 111, fine particles and flocculent matter will be collected at these locations. If a filter with a smaller mesh size is installed on the filter wall 114, water can still flow through the filter wall 114 even if the first sidewall 110, the first side ear 112, the second side ear 113, and the second sidewall 111 become clogged, without affecting the collection of waste at these locations.
[0046] As shown in Figures 4 and 5, the underwater robot filtration device in this embodiment, when applied to the underwater robot 120, includes an underwater robot body (hereinafter referred to as "body" or "underwater robot"). The bottom of the underwater robot body 120 has a suction port, and the sides and / or top of the underwater robot body 120 have water outlets 123. The cleaning principle of the underwater robot 120 is as follows: sewage is sucked in through the suction port at the bottom, and then the underwater robot filtration device 100 collects the waste. Water is then discharged from the water outlets 123, thus achieving the cleaning purpose.
[0047] The underwater robot 120 is provided with a walking mechanism at its lower part, which consists of walking wheels 121 and / or walking tracks 122. In this embodiment, an underwater robot is provided with both walking wheels 121 and synchronous walking tracks 122 on both sides of its lower part.
[0048] The track 122 can be set to drive independently, or it can be used together with the wheel 121 to become the drive track of the wheel 121.
[0049] The underwater robot filter device 100 is installed inside the body of the underwater robot 120 and is located in the water flow channel between the suction port and the water outlet 123. The suction port and the water inlet 101 are interconnected.
[0050] In one embodiment, a second filter device 124 is further provided on or inside the body. The second filter device 124 is located between the underwater robot filter device and the water outlet 123, and is used to perform secondary filtration on the pool water filtered by the underwater robot filter device to achieve a further cleaning effect.
[0051] In one embodiment, the second filter device 124 is provided with a suction wall that conforms to the irregularly shaped sidewalls on the filter device body, and the two sides are fitted together. Specifically, the outer surface of the suction wall fits into the outer surface of the irregularly shaped sidewalls on the filter device body. This fit allows water flowing out of the underwater robot's filter device to immediately enter the second filter device 124, reducing the accumulation of dirt in other structures inside the underwater robot 120. Alternatively, the second filter device 124 may be at least partially located within the second filter chamber 102.
[0052] In one embodiment, the second filtration device 124 is provided with a second filter body, which is one or more of the following: filter screen, filter cotton, filter paper, filter bag, activated carbon filter layer, and particulate filter layer.
[0053] Furthermore, the filtration density on the second filter element is coarser than that on the filter port or filter pores, in order to further filter even finer particles.
[0054] In one embodiment, the second filter device 124 is detachably mounted on the body of the underwater robot 120. When the second filter device 124 becomes dirty, it can be directly disassembled for cleaning, making the structure more flexible and easier to use. The disassembly methods in this embodiment are common known techniques such as fastening, pasting, and magnetic attraction, all of which achieve the desired disassembly and use. Therefore, this embodiment will not exhaustively list or elaborate on any disassembly methods.
[0055] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0056] This embodiment presents a filtration device for underwater robots and an underwater robot, which has a simple structure, is easy to use, and can collect different types of waste; it can also improve the filtration effect through a multi-layer filtration structure.
[0057] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the technical solution of this utility model, and are not intended to limit the specific implementation of this utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the claims of this utility model should be included within the protection scope of the claims of this utility model.
Claims
1. A filtration device for underwater robots, characterized in that, The device includes a filter body, with a water inlet at the bottom and a plurality of filter holes on the sidewalls. The body has a hollow cavity and at least three interconnected sidewalls on its sides. At least one sidewall is an irregularly shaped structure, forming a second filter cavity on the cavity or outside of the filter body. A first sidewall is connected to the left side of the irregularly shaped sidewall, and a second sidewall is connected to the right side of the irregularly shaped sidewall.
2. The filtration device for underwater robots according to claim 1, characterized in that, The sidewall of the irregular structure includes a first side ear connected to the first side wall and a second side ear connected to the second side wall. A filter wall is provided between the first side ear and the second side ear. Filter ports are provided on the filter wall, the first side ear, and the second side ear.
3. The filtration device for underwater robots according to claim 1, characterized in that, The filter wall, the first side ear, and the second side ear are connected to each other to form a U-shaped structure that is thicker at the top and thinner at the bottom or vice versa, or the filter wall, the first side ear, and the second side ear are connected to each other to form a wedge shape.
4. A filtration device for an underwater robot according to claim 2 or 3, characterized in that, The projection of the filter wall is parallel to the edge of the inlet.
5. A filtration device for an underwater robot according to claim 2, characterized in that, A first connecting wall is provided between the first sidewall and the first side ear, and a second connecting wall is provided between the second sidewall and the second side ear.
6. A filtration device for an underwater robot according to claim 1 or 2, characterized in that, The filter port or filter hole is provided with a filter body, which is one or more of the following: filter screen, filter cotton, filter paper, filter bag, activated carbon filter layer, and particulate filter layer.
7. An underwater robot, comprising an underwater robot body, wherein a suction port is provided at the bottom of the underwater robot body, and a water outlet is provided on the side and / or top of the underwater robot body; The underwater robot is equipped with a walking mechanism at its lower part, which can be either wheels or tracks. Its features are, It also includes the underwater robot filtration device as described in claims 1-6, wherein the underwater robot filtration device is disposed inside the body and on the water flow channel between the suction port and the water outlet, and the suction port and the water inlet are interconnected.
8. An underwater robot according to claim 7, characterized in that, The body is also equipped with a second filtration device, which is located between the underwater robot's filtration device and the water outlet.
9. An underwater robot according to claim 8, characterized in that, The second filter device is provided with a suction wall, which is consistent with the irregular side wall on the filter device body and is made to fit together.
10. An underwater robot according to claim 8 or 9, characterized in that, The second filtration device is provided with a second filter body, which is one or more of the following: filter screen, filter cotton, filter paper, filter bag, activated carbon filter layer, and granular filter layer.