Intelligent water surface cleaning robot anti-grounding structure
By designing an anti-sanding structure on the water surface cleaning robot and utilizing the extension and limiting mechanisms of the parts, the problem of the robot getting stranded during water surface cleaning was solved, enabling the robot to extricate itself from water surface steps and operate normally.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- MULAN HOME TECH (SHENZHEN) CO LTD
- Filing Date
- 2025-07-28
- Publication Date
- 2026-06-26
AI Technical Summary
Water surface cleaning robots are prone to getting stuck on the pool entry steps due to insufficient water surface recognition accuracy and low movement resistance when cleaning swimming pools, thus failing to work properly.
An anti-sanding structure for an intelligent water surface cleaning robot was designed, including components such as robot shell, positioning cylinder, docking cylinder, and anti-sanding bracket. Through the extension and limiting structure of the parts, the robot avoids collision with water surface steps and can extricate itself from the predicament.
It effectively prevents robots from getting stranded, ensures normal operation, reduces reliance on sensor recognition, and improves the reliability and flexibility of robots in water surface cleaning.
Smart Images

Figure CN224409565U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of water surface cleaning robot technology, specifically to an anti-stranding structure for an intelligent water surface cleaning robot. Background Technology
[0002] As living standards continue to improve, many families have installed backyard swimming pools. With the increasing use, daily management, and manual cleaning costs of backyard swimming pools, swimming pool cleaning robots have emerged. With the use of swimming pool cleaning robots, swimming pool cleaning has gradually moved from the manual era to the intelligent era. From manual cleaning to machine cleaning, from wired machine cleaning to wireless machine cleaning, cleaning tools are also gradually becoming intelligent.
[0003] With the use of pool cleaning robots, some drawbacks of pool robots have gradually become apparent. In backyard pools, at the pool entrance steps, due to limitations in the accuracy of the surface cleaning robot's sensor recognition, the inability of the surface sensor to detect underwater conditions, and the fact that the water surface resistance is much lower than that on land, the bottom of the pool surface cleaning robot is underwater when it is working. When the pool water level is low, the cleaning robot is prone to colliding with a step below the water surface, or even the bottom of the robot may be pushed onto the step platform. In this case, the robot will be stranded on the water entrance step platform and will be unable to continue working normally.
[0004] To address the aforementioned issues, there is an urgent need for innovative design based on the existing structure of water surface cleaning robots. Utility Model Content
[0005] The purpose of this utility model is to provide an anti-sanding structure for an intelligent water surface cleaning robot, in order to solve the problem mentioned in the background art that when a water surface cleaning robot is cleaning in a swimming pool and collecting water surface garbage, it is easily stranded on the water entry step of the pool due to the influence of the water surface position, the water intake position of the machine when entering the water and the forward kinetic energy of the machine itself, causing the robot to get stuck on the step and be unable to work normally.
[0006] To achieve the above objectives, this utility model provides the following technical solution: an anti-stranding structure for an intelligent water surface cleaning robot, comprising a robot shell and a positioning cylinder fixedly installed inside the robot shell, wherein the positioning cylinder has an installation groove inside; a docking cylinder is provided inside the installation groove, and an anti-stranding bracket is provided inside the docking cylinder; an installation cylinder is fixedly installed at the upper end of the docking cylinder, and a screw is installed in the internal thread of the installation cylinder, and a washer is sleeved on the outside of the screw, while the washer is located on the outside of the positioning cylinder.
[0007] Preferably, the docking cylinder has a limiting groove inside, and the limiting groove is provided in two sets at the upper and lower ends of the docking cylinder, and two sets of rotating rods are fixedly installed on the outside of the docking cylinder.
[0008] Preferably, a limiting shaft is fixedly installed at the upper end of the docking cylinder, and an arc-shaped groove is provided inside the positioning cylinder, with the arc-shaped groove located outside the limiting shaft, and the arc-shaped groove has an arc-shaped structure when viewed from above.
[0009] Preferably, a limiting block is fixedly installed at the front end of the anti-sanding bracket, and the limiting block is engaged with a limiting groove. The engagement of the limiting block with the limiting groove at different positions can control the height of the anti-sanding bracket.
[0010] Preferably, a guide block is fixedly installed at the upper end of the anti-sanding bracket, and a stop groove is opened on the outer side of the anti-sanding bracket, with the stop groove located at the lower end of the guide block. At the same time, the guide block and the limiting block are staggered at the upper end of the anti-sanding bracket.
[0011] Preferably, two sets of inner stop blocks are fixedly installed inside the docking cylinder, and the inner stop blocks are located inside the stop groove and at the lower end of the guide block.
[0012] Compared with the prior art, the beneficial effects of this utility model are: the plane of the step below the water surface is higher than the bottom of the robot. In this case, the robot body will collide with the step below the water surface. The robot will not be stranded or trapped. The parts are supported on the platform of the step below the water surface. However, under the forward momentum of the robot, the parts cannot support the machine indefinitely. The robot can get out of trouble on its own, avoiding the entire robot from being stranded or trapped.
[0013] 1. The anti-sanding structure of this intelligent water surface cleaning robot can prevent the robot from getting stuck on the pool entry steps, which would affect the robot's work. The anti-sanding structure is simple in design and is more cost-effective than using sensors for exploration and identification.
[0014] 2. Furthermore, the buckle on the part deforms during movement, and slots are opened on both sides of the buckle to reduce the connection strength between the buckle and the part and increase the elastic deformation of the buckle connection structure. The part is also designed with a stop structure to stop the movement, so as to prevent the part from being stretched too much and falling out of the designated position and being pulled out of the component. In order to facilitate the assembly of the part onto the component, the stop structure is also slotted on both sides, so that it can undergo elastic deformation and be installed onto the component during assembly.
[0015] 3. Furthermore, after the anti-sanding parts are assembled, the stop structure on the anti-sanding parts and the matching structure on the bracket cooperate with each other. During the normal operation of the water surface cleaning robot, the anti-sanding parts cannot be pulled off the machine by the user, thus preventing loss and affecting the subsequent use of the machine. Attached Figure Description
[0016] Figure 1 This is a top-view three-dimensional structural diagram of the present invention;
[0017] Figure 2 This is a three-dimensional structural diagram of the present invention viewed from below;
[0018] Figure 3 This utility model Figure 1 Enlarged structural diagram at point A in the diagram;
[0019] Figure 4 This is a top-view three-dimensional structural diagram of the anti-sanding bracket of this utility model;
[0020] Figure 5 This is a three-dimensional structural diagram of the present invention in an exploded state;
[0021] Figure 6 This is a bottom-view three-dimensional structural diagram of the mounting slot of this utility model;
[0022] Figure 7 This is a bottom-view three-dimensional structural diagram of the inner stop block of this utility model.
[0023] In the diagram: 1. Robot housing; 2. Positioning cylinder; 3. Mounting cylinder; 4. Gasket; 5. Screw; 6. Limiting shaft; 7. Arc groove; 8. Limiting groove; 9. Rotating rod; 10. Inner stop block; 11. Anti-slip bracket; 12. Limiting block; 13. Guide block; 14. Mounting groove; 15. Stopping groove; 16. Docking cylinder. Detailed Implementation
[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0025] Example 1: In a specific embodiment, this utility model provides the following technical solution: an anti-stranding structure for an intelligent water surface cleaning robot, such as... Figures 1-4 The basic usage process of this anti-sanding structure is shown in the figure.
[0026] The robot housing 1 and the positioning cylinder 2 fixedly installed inside the robot housing 1 are provided. The positioning cylinder 2 has an installation groove 14 inside. The installation groove 14 is provided with a docking cylinder 16, and the docking cylinder 16 is provided with an anti-sanding bracket 11. The upper end of the docking cylinder 16 is fixedly installed with an installation cylinder 3, and the installation cylinder 3 has a screw 5 installed in its internal thread. The screw 5 is fitted with a washer 4 on its outer side, and the washer 4 is located on the outer side of the positioning cylinder 2.
[0027] A component is designed on the bottom of the pool cleaning robot to prevent it from getting stuck. Before the robot starts working, this component is extended. After the robot enters the water, the extended component increases the robot's depth below the water surface. When the robot reaches a step, two situations may occur: Before the component is extended, the submerged step plane is higher than the bottom of the robot. In this case, the robot body will collide with the step below the water surface, and the robot will not get stuck. Before the component is extended, the submerged step plane is lower than the bottom of the robot. In this case, there are two more situations.
[0028] After the part is stretched, if the submerged step plane is lower than the stretched part's position, the robot will not rush onto the water's surface step, nor will it become stranded on the next step platform. If the submerged step plane is higher than the stretched part's position, the part may collide with the submerged step, or the robot may rush onto the next step platform. The part may be supported on the next step platform, but under the robot's forward momentum, the part cannot support the robot indefinitely, and the robot can extricate itself, preventing the entire robot from becoming stranded.
[0029] Example 2: In one specific embodiment, such as Figures 1-6 As shown, in order to solve the problem of existing robots being stranded, the working process of this anti-stranding structure is disclosed.
[0030] The docking cylinder 16 has a limiting groove 8 inside, and the limiting groove 8 is provided in two sets at the upper and lower ends of the docking cylinder 16. Two sets of rotating rods 9 are fixedly installed on the outside of the docking cylinder 16. The upper end of the docking cylinder 16 is fixedly installed with a limiting shaft 6. The positioning cylinder 2 has an arc-shaped groove 7 inside, and the arc-shaped groove 7 is located outside the limiting shaft 6. The arc-shaped groove 7 has an arc-shaped structure when viewed from above.
[0031] When using the anti-sanding structure of this intelligent water surface cleaning robot, the docking cylinder 16 needs to be installed inside the positioning cylinder 2 so that the docking cylinder 16 is docked with the mounting groove 14. Then, the limiting shaft 6 can be placed inside the arc groove 7. At this time, the gasket 4 can be placed on the upper end of the positioning cylinder 2 and the screw 5 can pass through the gasket 4 and be threadedly connected to the mounting cylinder 3, thereby installing the docking cylinder 16 inside the mounting groove 14. Then, the anti-sanding bracket 11 can be inserted into the docking cylinder 16 so that the limiting block 12 engages with the limiting groove 8. By controlling the limiting block 12 to engage with the limiting groove 8 at different positions, the position of the anti-sanding bracket 11 at the lower end of the robot shell 1 can be controlled, thereby controlling the use of the anti-sanding bracket 11 and effectively preventing the robot from getting stranded during operation. When the robot finishes working, the stretched parts can be pushed back to their original positions to reduce the overall height of the machine and facilitate the storage of the robot.
[0032] Example 3: Based on the above examples, such as... Figures 1-2 and Figure 7 As shown;
[0033] A limiting block 12 is fixedly installed at the front end of the anti-sanding bracket 11, and the limiting block 12 is engaged with the limiting groove 8. The engagement of the limiting block 12 with the limiting groove 8 at different positions can control the height of the anti-sanding bracket 11. A guide block 13 is fixedly installed at the upper end of the anti-sanding bracket 11, and a stop groove 15 is opened on the outer side of the anti-sanding bracket 11. The stop groove 15 is located at the lower end of the guide block 13. At the same time, the guide block 13 and the limiting block 12 are staggered at the upper end of the anti-sanding bracket 11. Two sets of inner stop blocks 10 are fixedly installed inside the docking cylinder 16. The inner stop blocks 10 are located inside the stop groove 15 and at the lower end of the guide block 13.
[0034] When using the anti-sanding structure of this intelligent water surface cleaning robot, the anti-sanding bracket 11 needs to be docked with the fixed docking cylinder 16. During the docking process, the guide block 13 will be squeezed by the inner stop block 10. After the docking cylinder 16 and the anti-sanding bracket 11 are docked, the inner stop block 10 will be located inside the stop groove 15. The upper end of the inner stop block 10 is horizontal and the lower end of the guide block 13 is horizontal. This will limit the guide block 13, preventing the anti-sanding parts from being pulled off the machine by the user, thus avoiding loss and affecting the subsequent use of the machine, and increasing the overall practicality.
[0035] The contents not described in detail in this specification are existing technologies known to those skilled in the art.
[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A structure for preventing stranding of an intelligent water surface cleaning robot, comprising a robot shell (1) and a positioning cylinder (2) fixedly installed inside the robot shell (1), wherein the positioning cylinder (2) has an installation groove (14) inside; Its features are: The mounting groove (14) is provided with a docking cylinder (16) inside, and the docking cylinder (16) is provided with an anti-sanding bracket (11) inside. The upper end of the docking cylinder (16) is fixedly installed with a mounting cylinder (3), and the mounting cylinder (3) is threaded with a screw (5), and a washer (4) is sleeved on the outside of the screw (5), while the washer (4) is located on the outside of the positioning cylinder (2).
2. The anti-stranding structure for an intelligent water surface cleaning robot according to claim 1, characterized in that: The docking cylinder (16) has a limiting groove (8) inside, and the limiting groove (8) is provided in two sets at the upper and lower ends of the docking cylinder (16), and two sets of rotating rods (9) are fixedly installed on the outside of the docking cylinder (16).
3. The anti-stranding structure for an intelligent water surface cleaning robot according to claim 2, characterized in that: The upper end of the docking cylinder (16) is fixedly installed with a limiting shaft (6). The positioning cylinder (2) has an arc-shaped groove (7) inside, and the arc-shaped groove (7) is located outside the limiting shaft (6). The arc-shaped groove (7) has an arc-shaped structure when viewed from above.
4. The anti-stranding structure for an intelligent water surface cleaning robot according to claim 3, characterized in that: The front end of the anti-sanding bracket (11) is fixedly installed with a limiting block (12), and the limiting block (12) is engaged with the limiting groove (8). The engagement of the limiting block (12) with the limiting groove (8) at different positions can control the height of the anti-sanding bracket (11).
5. The anti-stranding structure for an intelligent water surface cleaning robot according to claim 4, characterized in that: The upper end of the anti-sanding bracket (11) is fixedly installed with a guide block (13), and a stop groove (15) is opened on the outer side of the anti-sanding bracket (11). The stop groove (15) is located at the lower end of the guide block (13), and the guide block (13) and the limit block (12) are staggered at the upper end of the anti-sanding bracket (11).
6. The anti-stranding structure for an intelligent water surface cleaning robot according to claim 5, characterized in that: Two sets of inner stop blocks (10) are fixedly installed inside the docking cylinder (16), and the inner stop blocks (10) are located inside the stop groove (15) and at the lower end of the guide block (13).