Steering structure of swimming pool robot

By using a jetting device and a movable tail fin structure, combined with the control of angle and pressure sensors, the problem of rigid steering in pool robots has been solved, enabling flexible steering and efficient movement, and enhancing the adaptability and endurance of the equipment.

CN223999748UActive Publication Date: 2026-03-17NINGBO FREE TRADE ZONE REFINE MOULD TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202520556129.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-27
Publication Date
2026-03-17
Estimated Expiration
2035-03-27

AI Technical Summary

Technical Problem

Existing pool robots suffer from rigid steering mechanisms, difficulty adapting to complex pool environments, and low internal space utilization, which affects their mobility and endurance.

Method used

It employs a jetting device and a movable tail fin structure. By adjusting the deflection angle of the tail fin, the direction of the jetting water flow is changed, and the reaction force of the water flow is used to drive the steering. Precise control is achieved by combining angle sensors, pressure sensors and control modules.

Benefits of technology

It enables the pool robot to turn flexibly and move precisely, adapt to complex environments, improve mobility and endurance, and optimize energy efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The steering structure of the swimming pool robot comprises a movable base and a control device, the control device is fixed to the movable base and comprises a spraying device and a steering device, and the spraying device is provided with a spraying opening and used for generating water flow which is continuously sprayed; the steering device comprises at least one movable empennage rotationally connected to the jet orifice, and the movable empennage changes the jet water flow direction by adjusting the deflection angle of the movable empennage, so that counter-acting force is generated to drive the movable base to steer. According to the utility model, the problems of steering and power of the swimming pool robot in water are solved.
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Description

Technical Field

[0001] This utility model relates to the field of pool robot technology, and more specifically, to a steering structure for a pool robot. Background Technology

[0002] With increasing health awareness, swimming, as a full-body exercise, is becoming increasingly popular. This has led to higher demands for pool environment quality, including standards for pool cleaning and maintenance. Pool robots, as crucial tools for maintaining pool cleanliness, directly impact the quality of the pool environment. However, current pool robots on the market suffer from several design limitations, primarily in rigid steering mechanisms, difficulty adapting to complex pool environments, and low internal space utilization. These issues result in low mobility, especially noticeable when operating in confined spaces or areas with complex terrain. Furthermore, inadequate internal structural design restricts the space allocation of batteries and other critical components, thus affecting the overall battery life of the device. Utility Model Content

[0003] The problem solved by this invention is the turning and power issues of pool robots in water.

[0004] To address the aforementioned problems, this utility model provides a steering structure for a pool robot, comprising: a mobile base and a control device. The control device is fixed on the mobile base and includes a spraying device and a steering device. The spraying device is provided with a spray nozzle for generating a continuous jet of water. The steering device includes at least one movable tail fin rotatably connected to the spray nozzle. The movable tail fin changes the direction of the jet of water by adjusting its deflection angle, thereby generating a reaction force to drive the mobile base to turn.

[0005] The technical effects achieved by adopting this solution are as follows: By adjusting the deflection angle of the movable tail fin, the direction of the water jet can be precisely controlled, thereby achieving precise control over the movement direction of the pool robot. This allows the robot to move and turn more flexibly in the pool. Utilizing the reaction force of the water flow as a power source, this method not only provides an effective propulsion method but also allows the thrust to be adjusted as needed, ensuring the robot maintains good mobility under various conditions.

[0006] Furthermore, the movable tail fin is equipped with a rotating shaft, which is installed at the nozzle, allowing the movable tail fin to change the angle of the water jet by rotating the shaft.

[0007] The technical effects achieved by adopting this solution are as follows: The introduction of the pivot allows the movable tail fin to adjust its position in a more precise and controllable manner. This means that the direction of the water jet can be controlled more accurately, thereby enabling fine-tuning of the swimming pool robot's movement direction.

[0008] Furthermore, the swimming pool robot's steering structure also includes an angle sensor, which is fixed to the rotating shaft and used to calibrate the rotation angle of the movable tail fin.

[0009] The technical effects achieved by adopting this solution are as follows: The angle sensor can monitor and provide feedback on the rotation angle of the movable tail fin in real time, ensuring the high precision of its position adjustment. This makes the pool robot more accurate when performing steering operations, enabling it to accurately reach designated positions or move along predetermined paths according to programming or requirements. By precisely monitoring and calibrating the position of the movable tail fin, operational errors caused by mechanical mistakes can be reduced.

[0010] Furthermore, the steering structure of the pool robot also includes a pressure sensor, which is installed on the inner wall of the jet nozzle to detect water flow pressure.

[0011] The technical effects achieved by adopting this solution are as follows: When the pool robot encounters different resistance environments, the pressure sensor can detect these changes and make corresponding adjustments to the system, ensuring that the equipment can maintain a good working condition under various conditions.

[0012] Furthermore, the steering structure of the pool robot also includes a control module, which controls the swing angle of the movable tail fin and the output power of the jet device based on angle and pressure sensors.

[0013] The technical benefits of this solution include: the control module can intelligently adjust the deflection angle of the movable tail fin and the output power of the jet device based on real-time collected angle and pressure data. This means the pool robot can automatically optimize its movement direction, speed, and cleaning efficiency according to actual operating conditions without human intervention.

[0014] Furthermore, the rotation angle range of the movable tail fin is -60 degrees to +60 degrees; when the rotation angle of the movable tail fin is 0 degrees, the guide surface of the movable tail fin is parallel to the direction of the jet water flow, and the movable tail fin is in its original state.

[0015] The technical benefits of this solution include: providing a wide range of angle adjustment, resulting in greater flexibility and maneuverability for the pool robot. This design allows the device to perform complex turning maneuvers more freely, enabling it to more effectively avoid obstacles or precisely reach designated locations. When the active tail fin is in its original 0-degree state, its guide surface is parallel to the direction of the jet water flow. This means that in this state, the water flow is not deflected but propelled directly backward, providing maximum propulsion. This design helps improve efficiency when straight-line movement or rapid traversal of the pool is required.

[0016] Furthermore, the movable tail fin is equipped with a flow guide groove that extends along the direction of water flow, making it easy to guide the water flow to change direction.

[0017] The technical effects achieved by adopting this solution are as follows: A well-designed flow-guiding groove helps smooth the water flow, reduces turbulence, and allows the water flow to be better utilized to generate thrust. This not only saves energy but also allows the robot to achieve better mobility with the same energy consumption.

[0018] In summary, the various technical solutions described above in this application can have one or more of the following advantages or beneficial effects: i) By precisely adjusting the angle of the movable tail fin, the pool robot can achieve more flexible and precise steering and movement, adapting to complex pool environments. ii) Combining angle sensors, pressure sensors, and control modules, the system can dynamically adjust the output power of the jet device and the tail fin angle according to actual needs, optimizing energy efficiency and extending working time. iii) The wide range of tail fin rotation angles and the design of the flow-guiding grooves enable the pool robot to maintain good performance under different conditions (such as changes in water level, differences in pollution levels, etc.), enhancing the applicability of the equipment. iv) Designing flow-guiding grooves on the movable tail fin helps to smooth the water flow, reduce the formation of turbulence, and allow the water flow to be better utilized to generate thrust. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the steering structure of a pool robot according to an embodiment of the present invention;

[0020] Figure 2 for Figure 1 A magnified view of a portion of the image;

[0021] Figure 3 This is a partial structural diagram of the steering structure of the pool robot in this embodiment of the present invention. Figure 1 ;

[0022] Figure 4 This is a partial structural diagram of the steering structure of the pool robot in this embodiment of the present invention. Figure 2 .

[0023] Explanation of reference numerals in the attached figures:

[0024] 1-Moving base; 2-Control device; 21-Injection device; 211-Injection nozzle; 22-Steering device; 221-Moving tail fin; 2211-Rotating shaft. Detailed Implementation

[0025] The purpose of this invention is to provide a steering structure for a pool robot, which enables the pool robot to easily turn in water and provides continuous power.

[0026] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0027] See Figures 1 to 4 This utility model provides a steering structure for a swimming pool robot, including: a mobile base 1 and a control device 2. The control device 2 is fixed on the mobile base 1 and includes a spraying device 21 and a steering device 22. The spraying device 21 is provided with a spray nozzle 211 for generating a continuous spray of water. The steering device 22 includes at least one movable tail fin 221 rotatably connected to the spray nozzle 211. The movable tail fin 221 changes the direction of the sprayed water flow by adjusting its deflection angle, thereby generating a reaction force to drive the mobile base 1 to turn.

[0028] The movable tail fin 221 is equipped with a rotating shaft 2211, which is installed in the nozzle 211, so that the movable tail fin 221 can change the angle of the water jet by rotating the rotating shaft 2211.

[0029] Specifically, the pool robot includes a mobile base 1 and a control device 2 that controls the movement or turning of the mobile base 1. The mobile base 1 has a power water channel inside for drawing water from outside the mobile base 1. The control device 2 has a jetting device 21, which is connected to the power water channel. The power water channel pressurizes the external water flow through an internal water pump and delivers it to the jetting device 21, where it is ejected from the jetting nozzle 211, serving as the power source for the pool robot. A turning device 22 is fixed at the jetting nozzle 211, and a movable tail fin 221 is fixed to the jetting nozzle 211 via a pivot 2211, guiding the water jetting angle, thus changing the direction of the jetting water and causing the pool robot to move and turn in the opposite direction.

[0030] Furthermore, the movable tail fin 221 is exposed at the end of the control device 2, and the injection nozzle 211 is located at the tail end of the control device 2. The movable tail fin 221 is connected to the outside of the injection nozzle 211 via a pivot 2211. The movable tail fin 221 has a large rotation space, allowing for a larger deflection angle, and facilitates maintenance and replacement of the movable tail fin 221 without disassembling the housing of the control device 2. This is suitable for scenarios requiring high steering flexibility and prioritizing ease of maintenance.

[0031] The movable tail fin 221 is completely embedded inside the control device 2. The injection nozzle 211 is located at the rear end of the control device 2, and the movable tail fin 221 is connected to the inside of the injection nozzle 211 via a pivot 2211. The movable tail fin 221 is protected by the housing of the control device 2, avoiding external collisions or interference from foreign objects. The overall structure is compact and aesthetically pleasing. It is suitable for scenarios with high requirements for steering protection and small steering angles.

[0032] See Figures 1 to 4The swimming pool robot's steering structure also includes an angle sensor and a pressure sensor. The angle sensor is fixed on the rotating shaft 2211 and is used to calibrate the rotation angle of the movable tail fin 221. The pressure sensor is located on the inner wall of the jet nozzle 211 and is used to detect the water flow pressure.

[0033] The steering structure of the pool robot also includes a control module, which controls the swing angle of the movable tail fin 221 and the output power of the jet device 21 based on angle and pressure sensors.

[0034] The rotation angle range of the movable tail fin 221 is -60 degrees to +60 degrees; when the rotation angle of the movable tail fin 221 is 0 degrees, the guide surface of the movable tail fin 221 is parallel to the direction of the jet water flow, and the movable tail fin 221 is in its original state.

[0035] Specifically, when the pool robot encounters an obstacle, it will perform the following actions: The robot moves forward in a straight line, with the movable tail fin 221 in its original state (0 degrees), and the guide surface parallel to the direction of the water jet to ensure propulsion. After receiving a steering command, the control module begins reading data from the angle sensor to confirm the current position of the tail fin and determine the angle to be adjusted. During the adjustment process, the pressure sensor monitors the water pressure inside the jet nozzle 211 to ensure that the power output during the adjustment process is suitable for the current operational requirements. As the tail fin gradually turns to the target angle, the angle sensor continuously feeds back position information to the control module. The control module fine-tunes the tail fin position based on this data until the accurate angle is achieved. Once the tail fin reaches the predetermined angle, the direction of the water jet changes, generating sufficient reaction force to allow the robot to turn smoothly. At this point, if further adjustments to speed or direction are needed, the control module can continue to optimize performance based on the new angle and pressure data. After the turn is completed, if it is necessary to resume straight-line travel, the above process is repeated to adjust the tail fin angle back to its original state.

[0036] The movable tail fin 221 is provided with a flow guide groove that guides the water flow. The flow guide groove extends along the water flow direction to facilitate the change of water flow direction.

[0037] Specifically, a flow-guiding groove is provided on the active tail fin 221, extending along the direction of water flow, which helps to guide the water flow to change direction more smoothly, reducing turbulence and energy loss, and improving propulsion efficiency.

[0038] While the present invention has been disclosed above, it is not limited thereto. Any person skilled in the art can make various modifications and alterations without departing from the spirit and scope of the present invention; therefore, the scope of protection of the present invention should be determined by the scope defined in the claims.

Claims

1. A turning structure of a pool robot, characterized in that, The utility model relates to a mobile base (1) and a control device (2) fixed on the mobile base (1), which comprises a spraying device (21) and a steering device (22), wherein the spraying device (21) is provided with a spraying port (211) for generating a continuous water jet; the steering device (22) comprises at least one movable tail fin (221) rotatably connected to the spraying port (211), which changes the direction of the water jet by adjusting the deflection angle of the movable tail fin (221) to generate a reaction force to drive the mobile base (1) to turn. The movable tail fin (221) is provided with a rotating shaft (2211). An angle sensor is fixed on the rotating shaft (2211) to calibrate the rotation angle of the movable tail fin (221). A control module controls the swing angle of the movable tail fin (221) according to the angle sensor. The rotating shaft (2211) is installed on the spraying port (211) so that the movable tail fin (221) changes the angle of the water jet by rotating the rotating shaft (2211). A pressure sensor is arranged on the inner wall of the spraying port (211) to detect the pressure of the water jet.

2. The turning structure of the pool robot according to claim 1, characterized in that, The control module controls the output power of the spraying device (21) according to the pressure sensor.

3. The turning structure of the pool robot according to claim 1, characterized in that, The rotation angle of the movable tail fin (221) ranges from -60 degrees to +60 degrees; when the rotation angle of the movable tail fin (221) is 0 degrees, the guide surface of the movable tail fin (221) is parallel to the direction of the water jet, and the movable tail fin (221) is in the original state.

4. The turning structure of the pool robot according to claim 3, characterized in that, The movable tail fin (221) is provided with a guide groove for guiding the water flow, which extends along the direction of the water flow to facilitate the change of the direction of the water flow.

5. The turning structure of a pool robot according to any of claims 1 to 4, characterized in that, ​ 6. The turning structure of the pool robot according to claim 1, characterized in that, ​