An underwater inspection survey robot

By introducing cutting components and detachable mounting structures into the underwater inspection and survey robot, the problems of blade entanglement and motor overload caused by debris accumulation have been solved, improving propulsion efficiency and safety, and simplifying the maintenance process.

CN224311964UActive Publication Date: 2026-06-02UNIV OF SCI & TECH LIAONING

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
UNIV OF SCI & TECH LIAONING
Filing Date
2025-09-28
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

When existing underwater inspection and survey robots are operating underwater, debris tends to accumulate on the surface of the filter components, causing the fan blades to become entangled and jammed, and the motor to be overloaded, affecting propulsion efficiency and safety.

Method used

An underwater inspection and survey robot was designed, which adopts a cutting component and a detachable mounting structure. The cutting component includes blades and a guide plate to prevent debris accumulation, a rotating filter plate to block debris, and a motor to drive the fan blades to provide propulsion. The detachable clamping plate structure simplifies the maintenance process.

Benefits of technology

It effectively prevents debris accumulation, improves underwater propulsion efficiency and equipment stability, simplifies the maintenance process, and enhances equipment safety and maintenance efficiency.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224311964U_ABST
    Figure CN224311964U_ABST
Patent Text Reader

Abstract

This utility model belongs to the field of underwater robot technology and discloses an underwater inspection and survey robot, including a support frame, a control box installed inside the support frame, a camera installed inside the control box, an extension plate installed inside the support frame, a mounting bracket installed on the lower surface of the control box, an outer shell fixedly connected to the mounting bracket, the outer shell being located on the lower surface of the control box, a cross-shaped component fixedly connected inside the outer shell, a motor body fixedly connected to the outside of the cross-shaped component, a filter plate rotatably connected inside the outer shell, a connecting rod connected to the output end of the motor body, a fan blade connected to the other output end of the motor body, and a cutting component fixedly connected inside the outer shell. This utility model achieves underwater propulsion by the motor driving the fan blade, and the other end drives the filter plate to rotate via the connecting rod. The filter plate blocks debris and prevents accumulation, effectively reducing the interference of debris on the components.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model belongs to the field of underwater robot technology, specifically relating to an underwater inspection and survey robot. Background Technology

[0002] In underwater operations such as water conservancy facility maintenance, underwater pipeline inspection, and aquaculture environment survey, manual inspection is limited by factors such as water depth, water flow, visibility, and safety risks, making it difficult to efficiently complete large-scale and high-precision inspection and survey tasks. Therefore, underwater inspection and survey robots have become key equipment to replace manual labor in such work, effectively improving inspection efficiency and operational safety.

[0003] Existing underwater inspection and survey robots typically use a support frame as their main structure. Inside the frame is a control box, which integrates power supply, control modules, and survey components such as cameras. A mounting bracket secures the outer shell, which houses motors and fan blades. The control box sends control commands to the motors, which drive the fan blades to rotate, generating propulsion and moving the robot underwater. Simultaneously, the camera collects underwater image data, enabling the inspection and survey function. However, when large debris such as rocks, seaweed, and plastic is present underwater, it easily accumulates on the surface of the filter components. This not only blocks the water flow channels, reducing propulsion efficiency, but also causes the accumulated debris to continuously approach the fan blades or penetrate the outer shell, leading to fan blade entanglement and jamming, and motor overload. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides an underwater inspection and survey robot, which aims to improve the problem in the prior art that debris easily accumulates on the surface of the filter components, causing the fan blades to become entangled and jammed, and the motor to be overloaded.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an underwater inspection and survey robot, comprising a support frame, a control box installed inside the support frame, a camera installed inside the control box, an expansion plate installed inside the support frame, a mounting frame installed on the lower surface of the control box, a shell fixedly connected to the outside of the mounting frame, the outside of the shell located on the lower surface of the control box, a cross fixedly connected inside the shell, a motor body fixedly connected to the outside of the cross, a filter plate rotatably connected inside the shell, a connecting rod connected to the output end of the motor body, the connecting rod fixedly connected to the inside of the filter plate, a fan blade connected to the other output end of the motor body, and a cutting assembly fixedly connected inside the shell.

[0006] Furthermore, the cutting assembly includes a blade, the top end of which is fixedly connected to the inside of the housing, and a guide plate is fixedly connected to one side of the blade, the top end of which penetrates the inside of the housing.

[0007] Furthermore, the cutting assembly also includes a second blade, the bottom end of which is fixedly connected to the outside of the connecting rod, and a second filter plate is fixedly connected inside the housing.

[0008] Furthermore, a mounting column is installed inside the control box, the outside of the mounting column penetrates the inside of the mounting frame, and a clamping plate is rotatably connected inside the mounting column.

[0009] Furthermore, a spring is provided between the card plate and the mounting post.

[0010] Furthermore, a handle is fixedly connected to the bottom end of the mounting column, and the upper surface of the handle is in contact with the lower surface of the mounting bracket.

[0011] Furthermore, a sliding column is slidably connected inside the control box, and a handle is fixedly connected to one end of the sliding column.

[0012] Furthermore, a second spring is provided at the other end of the sliding column, and the second spring is located inside the control box.

[0013] This utility model has the following beneficial effects:

[0014] 1. The motor drives the fan blades to achieve underwater propulsion, and the other end drives the filter plate to rotate through the connecting rod. The filter plate blocks debris and prevents accumulation, reducing the interference of debris on the components.

[0015] 2. By pushing the second handle to retract the sliding column and press the plate, and then pulling the first handle, the mounting column can be pulled out. No additional tools are required, which can quickly separate the control box from the mounting bracket and greatly improve the maintenance efficiency of the internal components of the housing. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of an underwater inspection and survey robot proposed in this utility model.

[0017] Figure 2 This is a partial structural diagram of the outer shell of an underwater inspection and survey robot proposed in this utility model.

[0018] Figure 3 This is a schematic diagram of a partial structure of the blade of an underwater inspection and survey robot proposed in this utility model.

[0019] Figure 4 This is a partial structural diagram of the sliding column of an underwater inspection and survey robot proposed in this utility model.

[0020] The numbers in the diagram are explained as follows: 1. Support frame; 2. Control box; 3. Camera; 4. Addition plate; 5. Mounting bracket; 6. Outer shell; 7. Cross; 8. Filter plate one; 9. Motor body; 10. Fan blade; 11. Connecting rod; 12. Blade one; 13. Guide plate; 14. Blade two; 15. Filter plate two; 16. Mounting column; 17. Clamping plate; 18. Spring one; 19. Handle one; 20. Sliding column; 21. Handle two; 22. Spring two. Detailed Implementation

[0021] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0022] Reference Figures 1-3 This utility model provides an embodiment of an underwater inspection and survey robot, comprising a support frame 1, a control box 2 installed inside the support frame 1, a camera 3 installed inside the control box 2, an expansion plate 4 installed inside the support frame 1, a mounting bracket 5 installed on the lower surface of the control box 2, a shell 6 fixedly connected to the outside of the mounting bracket 5, the outside of the shell 6 being located on the lower surface of the control box 2, a cross 7 fixedly connected inside the shell 6, a motor body 9 fixedly connected to the outside of the cross 7, a filter plate 8 rotatably connected inside the shell 6, a connecting rod 11 connected to the output end of the motor body 9, the connecting rod 11 being fixedly connected to the inside of the filter plate 8, a fan blade 10 connected to the other output end of the motor body 9, and a cutting assembly fixedly connected inside the shell 6.

[0023] Specifically, the support frame 1 is used to prevent the robot from losing overall stability due to component swaying when moving underwater. The control box 2 provides power and control signals to electrical components such as the camera 3 and the motor body 9. It can also adjust the rotation speed of the motor body 9 and the shooting angle of the camera 3 through internal preset programs or remote commands. During the inspection process, the control box 2 receives the image data transmitted by the camera 3 in real time, and at the same time, adjusts the propulsion force of the fan blades 10 according to changes in the underwater environment.

[0024] When the robot moves underwater, water flows into the interior of the outer shell 6. The filter plate 8 can prevent larger debris from entering the area near the motor body 9 and fan blades 10. At the same time, the filter plate 8 will rotate synchronously with the drive of the connecting rod 11. This can prevent debris from accumulating on the surface of the filter plate 8 and causing blockage, and can also help to guide the water flow, allowing the water to pass through the outer shell 6 more smoothly and reducing the impact of water flow resistance on the robot's propulsion.

[0025] Reference Figure 2 The cutting assembly includes a blade 12, the top end of which is fixedly connected to the inside of the housing 6. A guide plate 13 is fixedly connected to one side of the blade 12, and the top end of the guide plate 13 penetrates the inside of the housing 6.

[0026] Specifically, when the robot is operating underwater, the water flow carries debris such as aquatic plants, thin twigs, and long strips of plastic into the interior of the outer shell 6. The blade 12 contacts these debris and performs initial cutting, severing the long strips and flakes of debris that might otherwise entangle the fan blade 10 or clog the filter plate 8 into short segments. The small debris cut by the blade 12 continues to move along the tilt angle of the guide plate 13 under the propulsion of the water flow, and is eventually discharged from the outside of the outer shell 6 through the channel at the top of the guide plate 13 that penetrates the interior of the outer shell 6. This effectively prevents debris from accumulating inside the outer shell 6, avoiding clogging the filter plate 8 or entanglement of the connecting rod 11, and ensuring smooth water flow inside the outer shell 6.

[0027] Reference Figure 3 The cutting assembly also includes a second blade 14, the bottom end of which is fixedly connected to the outside of the connecting rod 11, and a second filter plate 15 is fixedly connected inside the housing 6.

[0028] Specifically, the output end of the motor body 9 drives the second blade 14 through the connecting rod 11. When impurities fall onto the second filter plate 15, the motor body 9 will drive the second blade 14 to cut the impurities, preventing them from clogging the inside of the outer shell 6.

[0029] Reference Figure 4 The control box 2 has a mounting column 16 installed inside, and the outside of the mounting column 16 penetrates the inside of the mounting frame 5. The mounting column 16 is rotatably connected to a clamping plate 17. A spring 18 is provided between the clamping plate 17 and the mounting column 16. A handle 19 is fixedly connected to the bottom end of the mounting column 16, and the upper surface of the handle 19 is in contact with the lower surface of the mounting frame 5. A sliding column 20 is slidably connected inside the control box 2. A handle 21 is fixedly connected to one end of the sliding column 20. A spring 22 is provided at the other end of the sliding column 20 and is located inside the control box 2.

[0030] Specifically, when it is necessary to disassemble the mounting bracket 5 to maintain the internal components of the outer casing 6, the operator can push the handle 21 to drive the sliding column 20 to slide inside the control box 2. The end of the sliding column 20 away from the handle 21 will compress the spring 22, causing the spring 22 to remain inside the control box 2. As the sliding column 20 slides, its end will compress the locking plate 17, forcing the locking plate 17 to overcome the elastic force of the spring 18 and rotate back into the mounting column 16. At this time, the locking effect of the locking plate 17 on the mounting column 16 is released. Afterwards, the operator can pull down the handle 19 to pull the mounting column 16 out from between the control box 2 and the mounting bracket 5, thereby quickly completing the separation of the control box 2 and the mounting bracket 5 without the need for additional tools, greatly improving maintenance efficiency.

[0031] When using this underwater inspection and survey robot, firstly, the control program in the control box 2 is started, and the motor body 9 starts to work. One of its output ends drives the fan blade 10 to rotate, providing power for the robot's movement underwater. At the same time, the other output end of the motor body 9 drives the filter plate 8 to rotate through the connecting rod 11, and the connecting rod 11 drives the blade 14 to rotate simultaneously. At this time, the blade 12 fixed inside the outer shell 6 cuts the debris that may obstruct the robot's movement underwater. The cut debris is guided to the outside of the equipment by the guide plate 13 under the action of water flow. The camera 3 in the control box 2 collects underwater inspection and survey images in real time.

[0032] When the mounting frame 5 needs to be disassembled and maintained, pushing the second handle 21 moves the sliding column 20 into the control box 2. The sliding column 20 compresses the second spring 22, which in turn squeezes the clamping plate 17 and compresses the first spring 18, causing the clamping plate 17 to rotate into the mounting column 16. Then, pulling out the first handle 19 pulls the mounting column 16 out from between the control box 2 and the mounting frame 5, thus achieving the disassembly effect. Furthermore, throughout the entire underwater inspection and survey process, the control box 2 continuously controls the rotation speed of the motor body 9 and the shooting angle of the camera 3, ensuring that the fan blade 10 drives the robot to move stably, the cutting component efficiently handles debris, and the camera 3 clearly collects survey data. All components work together to complete the underwater inspection and survey task.

Claims

1. An underwater inspection survey robot comprising a support frame (1), characterized in that: The support frame (1) is equipped with a control box (2), the control box (2) is equipped with a camera (3), the support frame (1) is equipped with an expansion plate (4), the lower surface of the control box (2) is equipped with a mounting bracket (5), the mounting bracket (5) is fixedly connected to a shell (6), the outer surface of the shell (6) is located on the lower surface of the control box (2), the inner surface of the shell (6) is fixedly connected with a cross (7), the outer surface of the cross (7) is fixedly connected with a motor body (9), the inner surface of the shell (6) is rotatably connected with a filter plate (8), the output end of the motor body (9) is connected with a connecting rod (11), the outer surface of the connecting rod (11) is fixedly connected to the inner surface of the filter plate (8), the other output end of the motor body (9) is connected with a fan blade (10), and the inner surface of the shell (6) is fixedly connected with a cutting assembly.

2. The underwater inspection survey robot of claim 1, wherein: The cutting assembly includes a first blade (12), the top end of which is fixedly connected to the inside of the housing (6), and a guide plate (13) is fixedly connected to one side of the first blade (12), the top end of which penetrates the inside of the housing (6).

3. The underwater inspection survey robot of claim 1, wherein: The cutting assembly also includes a second blade (14), the bottom end of which is fixedly connected to the outside of the connecting rod (11), and a second filter plate (15) is fixedly connected inside the outer shell (6).

4. The underwater inspection and survey robot according to claim 1, characterized in that: The control box (2) is equipped with a mounting column (16), the outside of which penetrates the inside of the mounting frame (5), and the inside of the mounting column (16) is rotatably connected to a clamping plate (17).

5. The underwater inspection and survey robot according to claim 4, characterized in that: A spring (18) is provided between the card plate (17) and the mounting post (16).

6. The underwater inspection and survey robot according to claim 5, characterized in that: The bottom end of the mounting post (16) is fixedly connected to a handle (19), and the upper surface of the handle (19) is in contact with the lower surface of the mounting bracket (5).

7. The underwater inspection and survey robot according to claim 6, characterized in that: The control box (2) has a sliding column (20) inside, and a handle (21) is fixedly connected to one end of the sliding column (20).

8. The underwater inspection and survey robot according to claim 7, characterized in that: The other end of the sliding column (20) is provided with a second spring (22), which is located inside the control box (2).