Seabed mobile detection device
By suspending the fuselage with a lifting assembly and using a propeller for steering, the problem of seabed exploration devices being easily entangled by vegetation has been solved, improving flexibility and stability, and enhancing detection accuracy and practicality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- INST OF ROCK & SOIL MECHANICS CHINESE ACAD OF SCI
- Filing Date
- 2026-02-11
- Publication Date
- 2026-05-01
Smart Images

Figure CN121947724A_ABST
Abstract
Description
A mobile underwater detection device Technical Field
[0001] This invention relates to the field of marine geological exploration technology, and in particular to a mobile seabed exploration device. Background Technology
[0002] Marine geological exploration is a key link in the development of marine resources. However, the seabed environment is complex and often covered with dense vegetation and loose sediments. Existing exploration devices are prone to getting entangled in vegetation when moving, which can lead to equipment jamming or damage. These shortcomings highlight the urgent need for new exploration technologies that can balance flexibility, stability and environmental adaptability. Summary of the Invention
[0003] This application provides a mobile seabed detection device, which solves the technical problems of existing seabed detection devices being easily entangled by vegetation and having inflexible movement. By using a lifting component to suspend the body and coordinating with the propeller to steer, it achieves the technical effect of reducing contact time and improving detection accuracy.
[0004] This application provides a mobile seabed detection device, including a fuselage and a probe. Two guide plates are symmetrically arranged on both sides of the fuselage, and a first guide plate is located between the two guide plates. A probe and a camera are respectively installed at the front end and top of the first guide plate. A lifting assembly is installed at the lower part of the fuselage. A motor is installed inside each guide plate, and a propeller is installed at the motor's output end. The fuselage is lifted by the lifting assembly, then suspends and slowly descends to the seabed surface. During the descent, the motor drives the propeller to rotate, causing the fuselage to move forward. The different rotation speeds of the propellers on both sides also provide steering for the fuselage. By reducing the time of direct contact with the seabed surface, the fuselage is prevented from being entangled by seabed vegetation, thus improving the practicality and flexibility of the fuselage during detection.
[0005] The lifting assembly includes an electric telescopic rod, a push plate, and columns; multiple electric telescopic rods are installed inside the machine body, and the output ends of the multiple electric telescopic rods are all fixed to a push plate; multiple columns are fixed at equal intervals at the bottom of the push plate; the machine body also has a movable cavity to accommodate the push plate and columns.
[0006] The column is a cylindrical structure, and a fixing plate is fixed to the bottom of the fuselage. The fixing plate has multiple holes that correspond one-to-one with the shape, position and number of the column. The function is that when seaweed wraps around the column, the column retracts into the movable cavity, and the seaweed wrapped around the column will contact the bottom of the fixing plate. When the column moves to be parallel to the bottom surface of the fixing plate, the seaweed will fall off the column. A battery pack is installed inside the fuselage near the top.
[0007] The guide plate one and guide plate two are horn-shaped arc-shaped structures, with a smaller radius at the end closer to the probe and a larger radius at the end farther from the probe; a hole one runs through the guide plate two towards the tail of the fuselage, and a motor is installed in the hole one at a position away from the probe; the function is to guide ocean currents and seabed vegetation, improve the stability of the fuselage, and prevent seabed vegetation from being engulfed in the propeller.
[0008] The guide plate is also equipped with guide wings at the tail end of the fuselage, and there is a hollow area between the guide wings and the side end of the fuselage. The outer cross-section of the guide wings is arc-shaped. During the descent of the fuselage, the arc structure of the guide wings can guide the seabed vegetation to both sides, avoiding it from getting directly wrapped around the propeller from behind the motor and blocking the water flow, which would affect the forward efficiency. At the same time, the design of the hollow area makes the sides of the fuselage lighter and the middle heavier, setting the center of gravity of the fuselage in the middle and improving the stability of the fuselage. The guide wings can also guide the direction of the water flow generated by the propeller rotation, preventing the water flow from disturbing the surrounding seabed sediment, and preventing the sediment from spreading and affecting the detection of the probe.
[0009] The bottom of the fixed plate is also fixed with multiple equally spaced sliding strips, which makes it easy for the fuselage to glide slowly in areas with little seabed vegetation.
[0010] One or more technical solutions provided in this application have at least the following technical effects or advantages: Beneficial effects: The fuselage is raised by lifting components (such as electric telescopic rods, push plates, and columns), reducing the contact time with seabed vegetation and preventing entanglement; when the column is retracted, the second hole of the fixing plate can assist in the detachment of vegetation; the trumpet-shaped arc structure of guide plate one and guide plate two guides the ocean current, preventing vegetation from being engulfed by the propeller and improving stability; the arc design and hollow area of the guide wing divert the vegetation to both sides, preventing obstruction of the water flow, while optimizing the center of gravity distribution; the differential rotation of the propeller enables flexible steering, the camera assists in environmental observation, and the slider facilitates gliding in flat areas, enhancing practicality. Attached Figure Description
[0011] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0012] Figure 1 is a three-dimensional structural diagram of a mobile seabed detection device according to the present invention; Figure 2 is a partial cross-sectional structural diagram of the guide plate of the mobile seabed detection device according to the present invention; Figure 3 is a half-cross-sectional structural diagram of the mobile seabed detection device according to the present invention; Figure 4 is a schematic diagram of the bottom structure of the fuselage of the mobile seabed detection device according to the present invention; Figure 5 is a schematic diagram of the location of the hollow area of the mobile seabed detection device according to the present invention.
[0013] In the diagram: 100, fuselage; 110, guide plate one; 120, guide plate two; 121, hole one; 123, guide wing; 122, cutout area; 200, probe; 210, camera; 220, motor; 221, propeller; 230, battery pack; 240, electric telescopic rod; 241, push plate; 242, column; 243, fixing plate; 244, hole two; 250, slider. Detailed Implementation
[0014] To facilitate understanding of the present invention, a more complete description of this application will be given below with reference to the accompanying drawings, which illustrate preferred embodiments of the invention. However, the invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to enable a more thorough and complete understanding of the disclosure of the present invention.
[0015] It should be noted that the terms "vertical," "horizontal," "up," "down," "left," "right," and similar expressions used in this article are for illustrative purposes only and do not represent the only possible implementation.
[0016] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains; the terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to limit the invention; the term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.
[0017] Example 1: As shown in Figures 1 to 5, this application discloses a mobile seabed detection device, including a fuselage 100 and a probe 200. Guide plates 220 are symmetrically arranged on both sides of the fuselage 100, and a guide plate 110 is arranged between the two guide plates 220. A probe 200 and a camera 210 are respectively installed at the front end and top of the guide plate 110. A lifting assembly is installed at the lower part of the fuselage 100. A motor 220 is installed inside the guide plate 220, and a propeller 221 is installed at the output end of the motor 220. The lifting assembly lifts the fuselage 100, which then suspends and slowly descends to the seabed surface. During the descent, the motor 220 drives the propeller 221 to rotate, causing the fuselage 100 to move forward. The different rotation speeds of the propellers 221 on both sides also provide steering for the fuselage 100. By reducing the time of direct contact with the seabed surface, the fuselage 100 is prevented from being entangled by seabed vegetation, thus improving the practicality and flexibility of the fuselage 100 during detection.
[0018] The lifting assembly includes an electric telescopic rod 240, a push plate 241, and a column 242; multiple electric telescopic rods 240 are installed inside the body 100, and the output ends of the multiple electric telescopic rods 240 are all fixed to the push plate 241; multiple columns 242 are fixed at equal intervals at the bottom of the push plate 241; the body 100 also has a movable cavity inside to accommodate the push plate 241 and the columns 242.
[0019] The column 242 is a cylindrical structure, and a fixing plate 243 is fixed to the bottom of the body 100. The fixing plate 243 has multiple holes 244 that correspond one-to-one with the shape, position and number of the column 242. A battery pack 230 is installed in the body 100 near the top. The function is that when the seaweed is wrapped around the column 242, the column 242 retracts into the movable cavity, and the seaweed wrapped around the column 242 will contact the bottom of the fixing plate 243. When the column 242 moves to be parallel to the bottom surface of the fixing plate 243, the seaweed will fall off the column 242.
[0020] The guide plate 110 and guide plate 120 are horn-shaped arc-shaped structures, with a smaller radius at the end closer to the probe 200 and a larger radius at the end farther from the probe 200. A hole 121 extends through the guide plate 120 toward the tail of the fuselage 100, and a motor 220 is installed in the hole 121 at a position away from the probe 200. The purpose is to guide ocean currents and seabed vegetation, improve the stability of the fuselage 100, and prevent seabed vegetation from being engulfed in the propeller 221.
[0021] Traditional propulsion methods easily disturb sediment, affecting detection accuracy. Therefore, the guide plate 120 is further equipped with a guide wing 123 towards the tail of the fuselage 100, and a hollow area 122 is provided between the guide wing 123 and the side of the fuselage 100. The outer cross-section of the guide wing 123 is arc-shaped. During the descent of the fuselage 100, the arc structure of the guide wing 123 can guide seabed vegetation to both sides, preventing it from directly entangled in the propeller 221 from behind the motor 220 and obstructing water flow, thus affecting forward efficiency. Simultaneously, the design of the hollow area 122 makes the sides of the fuselage 100 lighter and the middle heavier, setting the center of gravity of the fuselage 100 at... In the middle, the stability of the fuselage 100 is improved; the guide wing 123 can also guide the direction of the water flow generated by the rotation of the propeller 221, preventing the water flow from disturbing the surrounding seabed sediment, and the sediment diffusion affecting the detection of the probe 200; in the conventional design of deep-sea submersibles, in order to maintain static stability, the heavy battery module is usually placed at the bottom of the fuselage to lower the center of gravity of the fuselage. However, the present invention places the battery pack 230 in a position close to the top of the fuselage 100, which can form a mass balance with the heavy lifting component at the bottom, thereby adjusting the overall center of gravity to the middle position, and achieving hydrodynamic balance with the hollow design of the guide wing 123.
[0022] The bottom of the fixed plate 243 is also fixed with a number of equally spaced sliding strips 250, which makes it easy for the fuselage 100 to glide slowly in areas with little seabed vegetation.
[0023] Specific implementation: After the mobile seabed detection device is lowered to the seabed, the camera 210 first observes the surrounding environment. When movement is required, the electric telescopic rod 240 is activated, controlling the push plate 241 to extend towards the seabed, driving the column 242 to contact the ground and raising the body 100. Then the electric telescopic rod 240 is quickly retracted. At this time, the motor 220 is activated to drive the propeller 221 to rotate and control the body 100 to move or turn, reducing the contact between the body 100 and the vegetation on the seabed and preventing the body 100 from getting entangled. In areas with less vegetation on the seabed, the motor 220 can be directly activated to drive the propeller 221 to rotate. The body 100 can slide on the seabed surface through the sliding strip 250 set at the bottom, and the probe 200 can then detect the sediment on the seabed.
[0024] Beneficial effects: The lifting components (such as electric telescopic rod 240, push plate 241 and column 242) raise the body 100, reducing the contact time with seabed vegetation and preventing entanglement; when the column 242 is retracted, the hole 244 of the fixing plate 243 can help the vegetation fall off.
[0025] The funnel-shaped arc structure of guide plate 110 and guide plate 2120 guides the ocean current, prevents vegetation from being engulfed by propeller 221, and improves stability.
[0026] The arc-shaped design of the guide wing 123 and the hollow area 122 divert the vegetation to both sides, preventing it from blocking the water flow and optimizing the center of gravity distribution.
[0027] The propeller 221 rotates at a differential speed to enable flexible steering, the camera 210 assists in environmental observation, and the slider 250 facilitates gliding on flat areas, enhancing practicality.
[0028] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. For those skilled in the art, the present invention can have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.
Claims
1. A mobile seabed detection device, characterized in that, The device includes a fuselage (100) and a probe (200). Two guide plates (120) are symmetrically arranged on both sides of the fuselage (100), and a guide plate (110) is located between the two guide plates (120). A probe (200) and a camera (210) are respectively installed at the front end and top of the guide plate (110). A lifting assembly is installed at the lower part of the fuselage (100). A motor (220) is installed inside the guide plate (120), and a propeller (221) is installed at the output end of the motor (220). The fuselage (100) is raised by the lifting assembly, and then the fuselage (100) is suspended and slowly descends to the seabed surface. During the descent, the motor (220) drives the propeller (221) to rotate, which makes the fuselage (100) move forward. The different rotation speeds of the propellers (221) on both sides can also provide steering for the fuselage (100). By reducing the time of direct contact with the seabed surface, the fuselage (100) is prevented from being entangled by seabed vegetation, and the practicality and flexibility of the fuselage (100) during exploration are improved.
2. The seabed mobile detection device as described in claim 1, characterized in that, The lifting assembly includes an electric telescopic rod (240), a push plate (241), and a column (242); multiple electric telescopic rods (240) are installed inside the body (100), and the push plate (241) is fixed to the output end of the multiple electric telescopic rods (240); multiple columns (242) are fixed to the bottom of the push plate (241); the body (100) also has a movable cavity inside to accommodate the push plate (241) and the column (242).
3. The seabed mobile detection device as described in claim 2, characterized in that, The column (242) is a cylindrical structure. The bottom of the body (100) is also fixed with a fixing plate (243). The fixing plate (243) has multiple holes (244) that correspond one-to-one with the shape, position and number of the column (242). A battery pack (230) is installed near the top of the body (100). Its function is to form a mass balance with the lifting component at the bottom and adjust the center of gravity of the body (100) to the middle position.
4. The seabed mobile detection device as described in claim 3, characterized in that, The guide plate one (110) and guide plate two (120) are horn-shaped arc surface structures, with a small radius at the end near the probe (200) and a large radius at the end away from the probe (200); the guide plate two (120) has a hole one (121) extending towards the tail of the fuselage (100), and a motor (220) is installed in the hole one (121) at a position away from the probe (200); its function is to guide ocean currents and seabed vegetation, improve the stability of the fuselage (100), and prevent seabed vegetation from being engulfed in the propeller (221).
5. The seabed mobile detection device as described in claim 1, characterized in that, The guide plate 2 (120) is also provided with a guide wing (123) towards the tail of the fuselage (100), and a hollow area (122) is provided between the guide wing (123) and the side end of the fuselage (100); the outer cross section of the guide wing (123) is arc-shaped.
6. The seabed mobile detection device as described in claim 3, characterized in that, The bottom of the fixing plate (243) is also fixed with a plurality of equally spaced slide bars (250).