Flow channel structure of swimming pool cleaning robot

Abstract

The embodiment of the utility model provides a runner structure of a swimming pool cleaning robot, and the runner structure comprises a water inlet which is arranged at the bottom of the robot; the filtering structure is connected with the water inlet and is used for filtering impurities in the water; the drainage device is connected with the filtering structure, provides negative pressure and is used for draining water in the filtering structure; wherein the water inlet inclines backwards, and the side face of the water inlet shrinks inwards; and the upper edge of the filter screen of the filter structure is higher than the lower edge of the water inlet of the drainage device, so that an upward flow channel is prevented from being formed. Through the scheme of the embodiment of the invention, the filtering efficiency can be improved.

Description

Technical Field

[0001] The present application relates to the technical field of swimming pool cleaning robots, and in particular to a flow channel structure of a swimming pool cleaning robot. Background Art

[0002] The flow channel structure of a pool cleaning robot serves as the internal fluid flow path. Its primary function is to ensure smooth and efficient water circulation while simultaneously collecting dust and filtering water. However, designing this flow channel structure to improve filtration efficiency is a significant technical challenge in practical applications. Existing designs can suffer from filter clogs, poor water flow, or excessive energy consumption, all of which can impact the robot's overall performance and cleaning effectiveness. Therefore, optimizing the flow channel structure and improving its filtration efficiency have become key areas of research and development in pool cleaning robot technology. Summary of the Invention

[0003] In view of this, an embodiment of the present disclosure provides a flow channel structure of a swimming pool cleaning robot, which at least partially solves the problems existing in the prior art.

[0004] The flow channel structure of a swimming pool cleaning robot of the present application includes:

[0005] Water inlet, located at the bottom of the robot;

[0006] A filtering structure connected to the water inlet for filtering impurities in the water;

[0007] The drainage device is connected to the filter structure and provides negative pressure to drain the water in the filter structure;

[0008] The water inlet is tilted toward the rear, and the sides are contracted inwards; and

[0009] The upper edge of the filter screen of the filter structure is higher than the lower edge of the water inlet of the drainage device to prevent the formation of an upward flow channel.

[0010] Preferably, the filtering structure is a detachable filter box, and an opening connected to the water inlet is provided at the bottom, and the opening protrudes a set distance from the bottom to facilitate sedimentation of mud and sand in the filter box, and a water inlet baffle that can be opened and closed backwards is provided at the top of the opening.

[0011] Preferably, the filter box is a single-layer structure or a multi-layer structure.

[0012] Preferably, the filter box is installed in the water channel cavity of the swimming pool cleaning robot, and the distance between the filter box and the side wall of the water channel cavity is not less than 7 mm to facilitate drainage.

[0013] Preferably, the water inlet is inclined rearward at an angle of 30-60°.

[0014] Preferably, the length of the outer portion of the water inlet is 200 mm and the width is 27 mm, and the length of the contracted end is 130 mm and the width is 19 mm.

[0015] Preferably, scrapers are provided at the rear portion and both sides of the rear portion of the water inlet for collecting impurities that have not entered the water inlet.

[0016] Preferably, the swimming pool cleaning robot is further provided with a cleaning brush, and the distance between the water inlet and the cleaning brush is no more than 24 cm.

[0017] The present disclosure provides a flow channel structure for a pool cleaning robot, comprising a double-layer housing, a flow channel structure, a filter structure, a drainage device, a drive mechanism, a walking mechanism, and a cleaning brush. The double-layer housing includes an internal water channel cavity and a housing interlayer between the double-layer housings. The flow channel structure includes a water inlet at the bottom of the double-layer housing, the water inlet communicating with the filter structure, and the drainage device providing negative pressure to discharge filtered water through a water outlet. The drive mechanism provides a driving force to drive the walking mechanism and the cleaning brush. The flow channel structure includes: a water inlet at the bottom of the robot; a filter structure connected to the water inlet for filtering impurities in the water; and a drainage device connected to the filter structure for providing negative pressure to discharge water from the filter structure. The water inlet is tilted rearward and has inwardly contracted sides. The upper edge of the filter screen of the filter structure is higher than the lower edge of the water inlet of the drainage device to prevent the formation of an upward flow channel. The solution of the present disclosure solves the problem of how to design the flow channel structure of a pool cleaning robot to improve filtration efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In the accompanying drawings, unless otherwise specified, the same reference numerals throughout the multiple drawings represent the same or similar components or elements. These drawings are not necessarily drawn to scale. It should be understood that these drawings only depict some embodiments disclosed in this application and should not be construed as limiting the scope of this application.

[0019] Figure 1 This is a schematic diagram of the overall structure of the swimming pool cleaning robot in this application;

[0020] Figure 2 A schematic diagram of the water inlet and scraper of the swimming pool cleaning robot of this application;

[0021] Figure 3 A schematic diagram of the water inlet of the swimming pool cleaning robot of this application;

[0022] Figure 4This is a schematic diagram of the filtering structure of the swimming pool cleaning robot of this application;

[0023] Figure 5 This is a schematic diagram of the structure of the drainage device of the swimming pool cleaning robot in this application;

[0024] Figure 6 This is a schematic diagram of the filtering structure of the swimming pool cleaning robot of this application.

[0025] Figure: 100, pool cleaning robot; 110, housing; 120, flow channel structure; 150, drive mechanism; 160, walking mechanism; 1, water inlet; 2, filter structure; 3, drainage device; 21, filter screen; 31, water inlet; 22, water inlet baffle; 23, opening; 4, scraper; 5, cleaning brush DETAILED DESCRIPTION

[0026] Hereinafter, only certain exemplary embodiments are briefly described. As will be appreciated by those skilled in the art, the described embodiments may be modified in various ways without departing from the spirit or scope of the present application. Therefore, the drawings and description are to be regarded as illustrative in nature and not restrictive.

[0027] First, refer to Figure 1 , describes the overall structure of the swimming pool cleaning robot 100 of the present application. Figure 1 As shown, the swimming pool cleaning robot of the present application includes a housing 110 , a flow channel structure 120 , a filtering structure 2 , a drainage device 3 , a driving mechanism 150 , a walking mechanism 160 and a cleaning brush 170 .

[0028] The housing 110 is the main structure of the pool cleaning robot, and is internally provided with a flow channel structure 120. The flow channel structure 120 is a water flow channel, and a filter structure 2 is provided in the flow channel structure 120 to filter the water flowing through the flow channel structure 120. The drainage device 3 is also provided in the flow channel structure 120 and provides power to discharge the filtered water out of the flow channel structure 120, thereby filtering the water in the pool. The pool cleaning robot of the present application is provided with a cleaning brush 170 that can rotate to clean the pool bottom or pool walls, and the drive mechanism 150 is responsible for driving the walking mechanism 160 and the cleaning brush 170 to clean the pool during the walking process.

[0029] In the present application, the shell 110 can be made of plastic and has a cavity inside to accommodate a filter structure 2 such as a filter screen. The impurities cleaned by the cleaning brush 170 enter the flow channel structure 120 through, for example, a water inlet at the bottom of the pool cleaning robot, and are then filtered through the filter screen. The filtered water is then discharged from the top of the pool cleaning robot 100 using a drainage device 3 such as a spiral mechanism, while the impurities and the like are retained in the filter screen to achieve the cleaning operation of the pool.

[0030] Next, refer to Figure 2 and Figure 3 , describes the flow channel structure of a swimming pool cleaning robot of the present application, which includes a water inlet 1 (see Figure 2 ), filtering structure 2, drainage device 3.

[0031] First, the flow channel structure includes a water inlet 1 located at the bottom of the robot. The water inlet 1 is located at the bottom of the robot and is tilted toward the rear, and its side also has the characteristic of contracting inwards (see Figure 3 This design helps to more effectively collect sediment at the bottom of the pool and reduces resistance to water flow, allowing more dirt to enter the filtration structure smoothly2.

[0032] Secondly, if Figure 4 As shown, the flow channel structure also includes a filter structure 2 connected to the water inlet 1. The filter structure 2 is used to filter various impurities in the water to ensure the cleanliness of the discharged water. The main part of the filter structure 2 is a filter screen 21, the upper edge of which is designed to be higher than the water inlet 31 of the drainage device 3 (see Figure 5 ) to reduce the number of bends in the direction of water flow and improve filtration efficiency.

[0033] Furthermore, the flow channel structure also includes a drainage device 3 connected to the filter structure 2. This device 3 provides negative pressure to help drain the filtered water into the swimming pool. This negative pressure design not only increases drainage speed but also helps maintain pressure balance throughout the system, preventing pressure imbalances caused by clogging of the filter structure 2.

[0034] Specifically, the backward tilt and lateral contraction of the water inlet 1 can be achieved through a mold forming process, using corrosion-resistant and high-strength materials such as stainless steel or engineering plastics to ensure long-term operation in complex environments without damage. The selection of the filter screen 21 is also critical. Commonly used materials include polyester fiber or wire mesh, etc., and the appropriate material and pore size are selected according to different pollution types and filtration requirements. In addition, the filter screen 21 can be fixed to the main frame of the filter structure 2 by snaps or bolts to ensure the stability and reliability of the filter screen 21. The negative pressure of the drainage device 3 is usually achieved by a small electric pump.

[0035] Through the above-mentioned design, the present invention effectively solves the technical problem of improving the filtration efficiency of a pool cleaning robot when designing the flow channel structure. Traditional flow channel structures often have the disadvantages of incomplete filtration, easy clogging, and large hydraulic losses. However, the flow channel structure of the present application greatly improves the filtration effect and reduces suspended matter and sediment in the water by optimizing the layout and shape of the water inlet 1, and rationally designing the position and connection method of the filter screen 21 and the drainage device 3. At the same time, the backward-tilted water inlet 1 design also helps to reduce the robot's forward resistance and improve cleaning efficiency. Through the above-mentioned design, the overall performance of the pool cleaning robot has been significantly improved, which better meets the needs of practical applications.

[0036] In one embodiment, reference Figure 6 The filtering structure 2 of the flow channel structure of a swimming pool cleaning robot of the present application is a detachable filter box, and an opening 23 connected to the water inlet 1 is provided at the bottom of the filter box. The opening protrudes a set distance from the bottom of the filter box, so that impurities such as mud and sand can be effectively precipitated in the filter box to prevent blockage. A water inlet baffle 22 is provided at the top of the opening 23, and the water inlet baffle 22 can be opened and closed backwards to facilitate the smooth entry of water into the filter box and effective filtration. The filter box can be designed as a single-layer structure or a double-layer structure to adapt to different needs and scenarios. However, it can also be understood that the filter box can also be a structure with two or more layers. Specifically, the filter box is installed in the water channel cavity of the swimming pool cleaning robot, and the distance between the filter box and the side wall of the water channel cavity is not less than 7 mm to ensure that the filtered water can be discharged and drained smoothly.

[0037] In one embodiment, in order to achieve the above-mentioned features, a protruding structure can be pre-set at the bottom of the filter screen box so that a height difference is naturally formed, thereby facilitating the deposition of sediment. The protruding structure can be formed in one step by a mold or fixed by subsequent processing. In addition, the water inlet baffle 22 can adopt a hinge structure so that it can be freely opened and closed within a certain angle range to facilitate the adjustment of water flow. For filter screen boxes with a single-layer or double-layer structure, appropriate filter materials and number of layers can be selected according to the actual use environment to improve the filtration efficiency. At the same time, in order to ensure that the filter screen box is stably installed in the water channel cavity, the size and shape of the filter screen box should match the water channel cavity, and sufficient gaps should be left for the smooth flow of water.

[0038] In one embodiment, the water inlet 1 of the flow channel structure of a pool cleaning robot of the present application is tilted backward at an angle of 30-60 degrees, ensuring that water flow effectively reduces resistance when entering, while optimizing water flow dynamics and improving cleaning efficiency. In a specific embodiment, the outer length of the water inlet 1 is 200mm and the width is 27mm. These dimensions ensure sufficient water inlet area to effectively absorb waste from the pool. The tapered end of the water inlet 1 is 130mm long and 19mm wide. This gradually narrowing design further accelerates water flow and enhances cleaning performance.

[0039] For example, the design of water inlet 1 employs a backward-tilted geometry, ensuring a smooth transition from incoming water to the internal flow channel. This tilt angle was chosen within the optimal range verified through multiple experiments, ensuring optimal performance under different environments. In actual technical implementation, precision mold manufacturing techniques are used to precisely control the size and angle of water inlet 1, ensuring accuracy and consistency across all components. Furthermore, the connection between water inlet 1 and the robot body utilizes reliable sealing materials to prevent water leakage and ensure stable system operation.

[0040] Return Reference Figure 2 In one embodiment, a scraper 4 is further provided at the rear of the water inlet 1 of the flow channel structure of a swimming pool cleaning robot of the present application to collect impurities that have not entered the water inlet 1. In other embodiments, scrapers 4 are provided not only at the rear of the water inlet 1, but also on both sides of the rear of the water inlet 1. In this way, these scrapers 4 and the water inlet 1 form a U-shaped structure, which facilitates the flow of water from the water inlet 1 into the cavity. The specific design of the scraper 4 is intended to improve the overall cleaning efficiency and reduce the impact of impurities in the water on subsequent systems. The scraper 4 is usually made of a flexible material with good elasticity and wear resistance, and can maintain a certain contact pressure with the surface of the swimming pool or other objects. During installation, one end of the scraper 4 is fixed to the rear frame of the water inlet 1, and the other end naturally droops and fits below the water flow path.

[0041] Specifically, the scraper 4 can be made of a flexible material such as silicone or polyurethane to ensure that it has sufficient elasticity and corrosion resistance. During the installation process, first fix one end of the scraper 4 to the bracket at the rear of the water inlet 1 with a bolt or a clip, and then adjust the position and angle of the scraper 4 so that it can effectively capture and collect impurities that fail to directly enter the water inlet 1 under the drive of the water flow. For example, when water flows through the water inlet 1, the scraper 4 can use the power of the water flow to gently guide the debris on the surface to the vicinity of the water inlet 1, further improving the filtration efficiency. Specifically, the design length and width of the scraper 4 need to be optimized according to the actual application scenario to ensure the best cleaning effect.

[0042] In one embodiment, the flow channel structure of a pool cleaning robot of the present application is characterized by being further provided with a cleaning brush 5. Specifically, the distance between the water inlet 1 and the cleaning brush 5 is no more than 24 centimeters. This design ensures that water entering the water inlet 1 can fully contact the area being cleaned near the cleaning brush 5, thereby effectively removing dirt from the pool bottom and sidewalls. In addition, the cleaning brush 5 is typically mounted at the front or bottom of the pool cleaning robot to ensure close contact with the pool bottom and sidewalls during the cleaning process. The position of the water inlet 1 must be carefully selected to ensure that the water flow can effectively draw in dirt and deliver it through the flow channel structure to the filtration device.

[0043] For example, the relative positions of the cleaning brush 5 and the water inlet 1 can be adjusted to meet design requirements. For example, the cleaning brush 5 can be positioned below the front end of the pool cleaning robot, with the water inlet 1 mounted no more than 24 cm from the brush 5. This arrangement can be achieved using a fixed bracket and a mounting base. The fixed bracket secures the cleaning brush 5, while the mounting base secures the water inlet 1. The fixed bracket and mounting base can be designed to be adjustable, allowing for flexible adjustment of the specific position of the cleaning brush 5 and the water inlet 1 during production and assembly, ensuring that the distance between them meets technical requirements.

[0044] During operation, the pool cleaning robot's flow path structure first draws in ambient water through the water inlet 1 at its base. Because the water inlet 1 is angled rearward and tapered inward on the sides, it more efficiently captures suspended solids and larger particles in the water. The water then enters the filtration structure 2 connected to the water inlet 1, where the filter 21 within it intercepts and removes impurities. Because the upper edge of the filter 21 is higher than the lower edge of the water inlet 31 of the drain 3, this design effectively prevents water from flowing upward along the filter 21, preventing impurities from flowing back into the water and ensuring effective filtration. The filtered clean water flows into the drain 3, which uses a built-in pump or other means to generate negative pressure to quickly discharge the filtered water, completing the entire water circulation and purification process. This synergistic effect not only improves pool cleaning efficiency but also ensures low energy consumption and high efficiency during the cleaning process. Through its rational design and precise structural layout, this flow path structure provides the pool cleaning robot with reliable filtration and drainage functions, enabling it to maintain efficient cleaning performance in a variety of complex environmental conditions.

[0045] While the exemplary systems and methods of the present invention have been specifically shown and described with reference to the foregoing embodiments, these are merely examples of the best modes for implementing the present systems and methods. Those skilled in the art will appreciate that various changes may be made to the embodiments of the systems and methods described herein when implementing the present systems and / or methods without departing from the spirit and scope of the present invention as defined in the appended claims.

Claims

1. A flow channel structure of a swimming pool cleaning robot, characterized in that: The flow channel structure includes: Water inlet (1), located at the bottom of the robot; A filtering structure (2) is connected to the water inlet (1) and is used to filter impurities in the water; The drainage device (3) is connected to the filter structure (2) and provides negative pressure to drain water from the filter structure (2); The water inlet (1) is arranged to be tilted rearward, and the side surfaces are contracted inward; and The upper edge of the filter screen (21) of the filter structure (2) is higher than the lower edge of the water inlet (31) of the drainage device (3) to prevent the formation of an upward flow channel.

2. The flow channel structure according to claim 1, characterized in that: The filtering structure (2) is a detachable filter box, and an opening (23) connected to the water inlet (1) is provided at the bottom, and the opening (23) protrudes from the bottom by a set distance to facilitate the precipitation of impurities in the filter box, and a water inlet baffle (22) capable of opening and closing backwards is provided at the top of the opening (23).

3. The flow channel structure according to claim 2, characterized in that: The filter box is a single-layer structure or a multi-layer structure.

4. The flow channel structure according to claim 3, characterized in that: The filter box is installed in the water channel cavity of the swimming pool cleaning robot, and the distance between the filter box and the side wall of the water channel cavity is not less than 7 mm to facilitate drainage.

5. The flow channel structure according to claim 1, characterized in that: The water inlet (1) is tilted rearward at an angle of 30-60°.

6. The flow channel structure according to claim 5, characterized in that: The water inlet (1) has an outer length of 200 mm and a width of 27 mm, and a contracted end length of 130 mm and a width of 19 mm.

7. The flow channel structure according to claim 1, characterized in that: Scraping strips (4) are also provided at the rear portion and both sides of the rear portion of the water inlet (1) for collecting impurities that have not entered the water inlet (1).

8. The flow channel structure according to claim 1, characterized in that: The swimming pool cleaning robot is further provided with a cleaning brush (5), and the distance between the water inlet (1) and the cleaning brush (5) is no more than 24 cm.

Images