Military high-strength automatic patrol triphibian boat

By designing gears, racks, servo motors, and worm gear assemblies, the compatibility issues of the power components of the amphibious boat in different environments were solved. This enabled the synchronous deployment and retraction of the water jet propulsion system and wheels, as well as the protection of components, thereby improving the stability and service life of the equipment.

CN121291744APending Publication Date: 2026-01-09GUANGDONG HEFA POWER TRANSMISSION INSTALLATION
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Patent Information

Application Number
CN202511462643.2
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-10-14
Publication Date
2026-01-09

AI Technical Summary

Technical Problem

Existing automated patrol amphibious boats are prone to damage when the water jet propulsion system comes into contact with the ground during both water and land navigation. The wheel structure also increases drag or affects aerodynamic performance in water or air modes, leading to damage to equipment components or poor performance.

Method used

The design incorporates components such as gears, racks, servo motors, worms, and worm wheels. The servo motor drives the worm to rotate, which in turn drives the worm wheel and gears to rotate, enabling the water jet propulsion unit and wheels to retract and extend synchronously, preventing collisions. The transmission components are protected by a protective cover and a bellows cover, ensuring stability and protection.

Benefits of technology

It enables flexible position adjustment of the waterjet propulsion system and wheels in different environments, avoiding damage, extending component life, and improving the stability and reliability of the amphibious vessel.

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Abstract

The invention discloses a military high-strength automatic patrol triphibian boat, and relates to the field of patrol triphibian boats, the military high-strength automatic patrol triphibian boat comprises a triphibian boat main body, and the outer surface of the triphibian boat main body is provided with two first sliding grooves, a second sliding groove and a limiting groove. By arranging the gear, the first rack, the second rack, a second servo motor, a worm, a transmission shaft, a worm gear and a protective cover, when the triphibian boat is switched from water surface movement to land movement, the second servo motor is started and drives the worm to rotate, and the worm is engaged with the worm gear to drive the transmission shaft and the gear to rotate; the gear is meshed with the first rack and the second rack at the same time, the first rack moves downwards while the second rack moves upwards, due to the fact that the first rack and the second rack move oppositely, the first rack moves downwards to drive the wheels to move downwards, the second rack drives the water-jet propeller to move upwards, the wheels are attached to the ground, and meanwhile the water-jet propeller moves upwards to prevent collision with the ground. Therefore, the flexible position adjustment of the power part is realized.
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Description

Technical Field

[0001] This invention relates to the field of patrol amphibious vessels, specifically a high-strength automatic patrol amphibious vessel for military use. Background Technology

[0002] The military high-intensity automatic patrol amphibious vessel, also known as the amphibious unmanned patrol vessel or amphibious APV, is a military unmanned vehicle (UxV) that integrates water, land, and air mobility capabilities, is made of high-strength materials, and has a high degree of autonomous navigation, perception, decision-making, and patrol mission execution capabilities. It represents an important development direction for future unmanned, intelligent, and multi-domain combat platforms.

[0003] Existing autonomous patrol amphibious boats are prone to physical interference between their water propulsion and land-based propulsion components when switching between different environments. For example, the water jet propulsion system, which relies on water propulsion, may come into direct contact with the ground when traveling on land, which could lead to deformation of the water jet propulsion blades, cracking of the casing, loss of water propulsion capability, and damage to components due to impacts. If the land-based wheel structure cannot be retracted in water or air mode, it will increase drag or affect aerodynamic performance, thus affecting the effectiveness of the amphibious boat. Summary of the Invention

[0004] Based on this, the purpose of the present invention is to provide a high-strength automatic patrol amphibious boat for military use, in order to solve the technical problem that the water jet propulsion system, which is relied upon for water navigation, may come into direct contact with the ground when traveling on land, which may easily lead to damage to the water jet propulsion system.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a military high-strength automatic patrol amphibious boat, comprising an amphibious boat body, the outer surface of which is provided with two first sliding grooves, a second sliding groove, and a limiting groove. Each of the two limiting grooves is provided with a limiting seat. Each of the two first sliding grooves is provided with a first sliding block, and a first rack is mounted on the outer surface of the first sliding block. A side plate is fixed to one side of the first rack. Each of the two second sliding grooves is provided with a second sliding block, and a second rack is mounted on the outer surface of the second sliding block. Each of the two limiting grooves is provided with a limiting seat, and a water jet propulsion device is installed between the limiting seat and the second sliding block. The interior of the amphibious boat body has two cavities, and a second servo motor is installed inside each cavity. The output end of the second servo motor is connected to a worm gear. A drive shaft is connected to the interior of each cavity via a bearing, and a worm wheel is mounted on the outer wall of the drive shaft. One end of the drive shaft extends to the outside of the amphibious boat body and is equipped with a gear.

[0006] By adopting the above technical solution, when the water jet propulsion moves, it can drive the limit seat to slide inside the limit groove, thereby improving the stability of the water jet propulsion when it moves.

[0007] Furthermore, protective covers are bolted to both sides of the outer surface of the amphibious vessel's main body, and guide grooves are provided on both sides of the protective covers.

[0008] By adopting the above technical solution, the protective cover can shield and protect the gear, the first rack, and the second rack.

[0009] Furthermore, guide grooves extend through one side of the first slide and one side of the second slide. Bellows covers are installed between the first slide and the protective cover and between the second slide and the protective cover. The width of the bellows cover is greater than the width of the guide groove.

[0010] By adopting the above technical solution, the bellows cover can shield and protect the guide groove, preventing impurities from entering the interior of the protective cover through the guide groove.

[0011] Furthermore, the worm gear meshes with the worm, and one end of the worm is connected to the inner wall of the cavity via a bearing.

[0012] By adopting the above technical solution, when the worm rotates, it will drive the worm wheel to rotate, and the rotation of the worm wheel will drive the transmission shaft to rotate.

[0013] Furthermore, the gear meshes with the first rack and the second rack, respectively.

[0014] By adopting the above technical solution, when the gear rotates, it will drive the first rack and the second rack to move, and the direction of movement of the first rack is opposite to the direction of movement of the second rack.

[0015] Furthermore, two wings are installed on both sides of the amphibious vessel's main body, and flight propellers are mounted on the wings.

[0016] By adopting the above technical solution, the propeller is configured so that the amphibious vessel can fly in the air.

[0017] Furthermore, radar and high-definition cameras are respectively installed on the top of the amphibious vessel's hull, and sonar equipment is installed on the bottom of the amphibious vessel's hull.

[0018] By adopting the above technical solutions, the radar can be set up with a long detection range (depending on the radar type and power, it can reach several kilometers to tens of kilometers), and can quickly scan large areas of water, land or low-altitude airspace; the radar can detect potential threats at a distance in advance (such as high-speed approaching speedboats, low-altitude aircraft, ground vehicle clusters, and personnel movement), thus buying valuable time for subsequent response.

[0019] Furthermore, a mounting plate is bolted to the bottom of the side plate, a damping shock absorber is mounted on the bottom of the mounting plate, and a frame is bolted to the bottom of the damping shock absorber.

[0020] By adopting the above technical solutions, the damping shock absorber can play a shock absorption role, so as to significantly reduce the vibration amplitude transmitted to the equipment and avoid the loosening or damage of components due to long-term bumps.

[0021] Furthermore, a first servo motor is installed on one side of the frame, and the output end of the first servo motor is connected to a wheel.

[0022] By adopting the above technical solution, the wheels can be driven to rotate when the first servo motor is working, so that the amphibious boat can move on land.

[0023] Furthermore, the first rack is slidably connected to the first groove via the first slide block, and the second rack is slidably connected to the second groove via the second slide block.

[0024] By adopting the above technical solution, when the first rack moves, it can drive the first slide block to slide inside the first slide groove, thereby improving the stability when the first rack moves. When the second rack moves, it can drive the second slide block to slide inside the second slide groove, thereby improving the stability when the second rack moves.

[0025] In summary, the present invention has the following main beneficial effects: 1. This invention, by incorporating gears, a first rack, a second rack, a second servo motor, a worm gear, a transmission shaft, a worm wheel, and a protective cover, allows the amphibious vehicle to switch from water surface movement to land movement. The second servo motor is activated, driving the worm gear to rotate. The worm gear meshes with the worm wheel, causing the transmission shaft and gear to rotate. Simultaneously, the gear meshes with the first and second racks, causing the first rack to move downwards and the second rack to move upwards. Since their movements are opposite, the downward movement of the first rack causes the wheels to move downwards, while the second rack causes the water jet propulsion unit to move upwards, bringing the wheels into contact with the ground. Simultaneously, the upward movement of the water jet propulsion unit prevents collisions with the ground, thus achieving flexible position adjustment of the power components and improving the protection of the water jet propulsion unit. Because the worm gear and worm wheel have a self-locking function, the first servo motor can be turned off after adjustment. This method enables the synchronous deployment and retraction of the water jet propulsion unit and the wheels, solving the problem of "incompatibility of power components in the same equipment in water and land scenarios." 2. This invention incorporates a protective cover and a bellows cover. The protective cover protects transmission components such as gears and racks, while the bellows cover blocks the guide groove to prevent impurities from entering, thereby avoiding the impact of impurities on gears, racks, and other components, and thus extending the service life of gears, racks, and other components. 3. The present invention provides a first sliding groove and a first sliding block. When the first rack moves, it will drive the first sliding block to slide inside the first sliding groove, thereby improving the stability of the first rack when it moves. By providing a second sliding groove and a second sliding block, when the second rack moves, it will drive the second sliding block to slide inside the second sliding groove, thereby improving the stability of the second rack when it moves. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention; Figure 2 This is a schematic cross-sectional view of the protective cover of the present invention; Figure 3 This is a schematic diagram of the overall side structure of the present invention; Figure 4 This is a schematic diagram of the overall bottom view of the present invention; Figure 5 This is a schematic diagram of the overall side section structure of the present invention; Figure 6 This is a schematic diagram of the propeller structure of the present invention; Figure 7 This is a schematic diagram of the side plate structure of the present invention; Figure 8 This is a schematic diagram of the second rack structure of the present invention; Figure 9 This is a schematic diagram of the side structure of the protective cover of the present invention.

[0027] In the diagram: 1. Amphibious boat body; 2. Wing; 3. Propeller; 4. Waterjet propulsion; 5. Limiting groove; 6. Limiting seat; 7. Radar; 8. High-definition camera; 9. Control system; 10. Frame; 11. Wheel; 12. Damping shock absorber; 13. First servo motor; 14. Mounting plate; 15. Side plate; 16. First slide groove; 17. First slide block; 18. First rack; 19. Second slide groove; 20. Second slide block; 21. Second rack; 22. Gear; 23. Sealing plate; 24. Cavity; 25. Second servo motor; 26. Worm gear; 27. Drive shaft; 28. Worm wheel; 29. ​​Protective cover; 30. Guide groove; 31. Bellows cover; 32. Sonar equipment; 33. Battery. Detailed Implementation

[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0029] The embodiments of the present invention will now be described.

[0030] Example 1: A high-strength, automated patrol amphibious vessel for military use, such as Figures 1-9 As shown, the amphibious vessel includes a main body 1. The outer surface of the main body 1 is provided with two first sliding grooves 16, two second sliding grooves 19, and a limiting groove 5. Each limiting groove 5 is provided with a limiting seat 6. Each of the two first sliding grooves 16 is provided with a first sliding block 17, and a first rack 18 is installed on the outer surface of the first sliding block 17. A side plate 15 is fixed to one side of the first rack 18. Each of the two second sliding grooves 19 is provided with a second sliding block 20, and a second rack 21 is installed on the outer surface of the second sliding block 20. Each of the two limiting grooves 5 is provided with a limiting seat 6, and a water jet propulsion device 4 is installed between the limiting seat 6 and the second sliding block 20. The water jet propulsion device 4 is slidably connected to the limiting groove 5 through the limiting seat 6. When the water jet propulsion device 4 moves, it can drive the limiting seat 6 to slide inside the limiting groove 5, thereby improving the stability of the water jet propulsion device 4 when it moves.

[0031] See Figures 1-7 The amphibious vessel body 1 has two cavities 24 inside, and a second servo motor 25 is installed inside the cavity 24. The output end of the second servo motor 25 is connected to a worm gear 26, which is made of 20Cr (carburized and quenched HRC58-62) material. A drive shaft 27 is connected to the cavity 24 through a bearing, and a worm wheel 28 is installed on the outer wall of the drive shaft 27. The worm wheel 28 is made of tin bronze material, and one end of the drive shaft 27 extends to the outside of the amphibious vessel body 1 and is equipped with a gear 22. The gear 22 meshes with a first rack 18 and a second rack 21 respectively. When the gear 22 rotates, it drives the first rack 18 and the second rack 21 to move, and the direction of movement of the first rack 18 is opposite to that of the second rack 21. The first rack 18 is slidably connected to the first slide groove 16 through the first slide block 17, and the second rack 21 is connected to the second slide block 26 through the second slide block 27. The first rack 18 is slidably connected to the second slide groove 19. When the first rack 18 moves, it can drive the first slide block 17 to slide inside the first slide groove 16, thereby improving the stability of the first rack 18 when it moves. When the second rack 21 moves, it can drive the second slide block 20 to slide inside the second slide groove 19, thereby improving the stability of the second rack 21 when it moves. The first rack 18, the second rack 21 and the gear 22 are all located inside the protective cover 29. The protective cover 29 is made of polycarbonate (with anti-ultraviolet agent). The gear 22, the first rack 18, the second rack 21 and the drive shaft 27 can all be made of alloy structural steel (such as 20CrMnTi, and need to be carburized and quenched) to improve the strength of the gear 22, the first rack 18, the second rack 21 and the drive shaft 27. Sealing plates 23 are bolted to both sides of the amphibious boat body 1. The sealing plates 23 correspond to the cavities 24.

[0032] Specifically, the amphibious vessel 1 has two wings 2 on each side, with flight propellers 3 mounted on the wings 2. The flight propellers 3 are configured to enable the amphibious vessel 1 to fly in the air. The top of the amphibious vessel 1 is equipped with a radar 7 and a high-definition camera 8, respectively. The bottom of the amphibious vessel 1 is equipped with a sonar device 32. The radar 7 has a long detection range (depending on the radar type and power, it can reach several kilometers to tens of kilometers) and can quickly scan large areas of water, land or low-altitude airspace. The radar can detect potential threats at a distance in advance (such as high-speed approaching speedboats, low-altitude aircraft, ground vehicle clusters, and personnel movement), buying valuable time for subsequent response.

[0033] See Figures 1-9 A mounting plate 14 is bolted to the bottom of the side plate 15. A damping shock absorber 12 is mounted on the bottom of the mounting plate 14, and a frame 10 is bolted to the bottom of the damping shock absorber 12. The damping shock absorber 12 can reduce vibration, thereby significantly reducing the amplitude of vibration transmitted to the equipment and preventing loosening or damage of components due to long-term bumps. A first servo motor 13 is mounted on one side of the frame 10. The output end of the first servo motor 13 is connected to a wheel 11. A control system 9 is installed inside the amphibious boat body 1. A battery 33 is also installed on one side of the control system 9. The battery 33 is electrically connected to the control system 9. The control system 9 is electrically connected to the radar 7, high-definition camera 8, flight propeller 3, water jet propulsion 4, sonar equipment 32, first servo motor 13, and second servo motor 25.

[0034] Example 2: Based on the above embodiment one, in order to enable the worm gear 26 to drive the worm wheel 28 to rotate when it rotates, the following method will be adopted.

[0035] Specifically, the worm wheel 28 meshes with the worm 26. One end of the worm 26 is connected to the inner wall of the cavity 24 through a bearing. When the worm 26 rotates, it will drive the worm wheel 28 to rotate, and the rotation of the worm wheel 28 will drive the transmission shaft 27 to rotate.

[0036] Example 3: Based on the above embodiment one, in order to protect the gear 22, the first rack 18 and the second rack 21, the following structure will be provided.

[0037] See Figures 1-8The outer surfaces of the amphibious vessel 1 are also bolted with protective covers 29 on both sides. Guide grooves 30 are provided on both sides of the protective cover 29. The protective cover 29 can shield and protect the gear 22, the first rack 18 and the second rack 21. The guide grooves 30 pass through one side of the first slide 17 and one side of the second slide 20. Bellows covers 31 are installed between the first slide 17 and the protective cover 29 and between the second slide 20 and the protective cover 29. The width of the bellows cover 31 is greater than the width of the guide groove 30. The bellows cover 31 can shield and protect the guide groove 30 to prevent impurities from entering the interior of the protective cover 29 through the guide groove 30.

[0038] The working principle of this invention is as follows: First, in a water environment, the water jet propulsion unit 4 is in a lowered state. The water jet propulsion unit 4 generates a reaction force by spraying water to propel the amphibious boat to move on the water surface, which is suitable for patrolling waters such as lakes and oceans. When switching to land mode, the second servo motor 25 can be activated. The operation of the second servo motor 25 drives the worm gear 26 to rotate. The rotation of the worm gear 26 drives the worm wheel 28 and the transmission shaft 27 to rotate synchronously. The gear 22 extending from the transmission shaft 27 rotates accordingly. The gear 22 meshes with the first rack 18 and the second rack 21. The first rack 18 slides downward along the first slide groove 16 through the first slide block 17, causing the side plate 15 to move downward, thereby making the wheel at the bottom of the side plate 15 contact the ground, switching to land driving mode. Meanwhile, the second rack 21 slides upward along the second slide groove 19 through the second slide block 20, causing the water jet propulsion unit 4 connected between the second slide block 20 and the limiting seat 6 to move upward, detaching from the water surface or ground contact to avoid collisions during land driving. When the water jet propulsion unit 4 moves, the limiting seat 6 slides along the limiting groove 5 to ensure stable movement trajectory. At the same time, the structure of the worm wheel 28 and the worm gear 26 has a self-locking function. After the power switch is completed, turning off the second servo motor 25 can lock the position of the components to prevent accidental displacement. Furthermore, the wings 2 installed on both sides of the amphibious boat are equipped with flight propellers 3. The rotation of the propellers generates lift and thrust, enabling the amphibious boat to achieve low-altitude flight. Meanwhile, during patrols, the amphibious vessel's top-mounted radar 7 can detect targets (such as speedboats, aircraft, and ground vehicles) at a range of several kilometers to tens of kilometers; the high-definition camera 8 provides visual monitoring images; the sonar device 32 at the bottom is used for underwater environmental detection, achieving all-round environmental perception, thus facilitating the amphibious vessel's patrols; and the control system 9 inside the amphibious vessel's main body 1 serves as the core hub, receiving the perception data from the radar 7, high-definition camera 8, and sonar device 32, and combining it with preset programs or remote commands to schedule the operation of various power components (such as starting or stopping motors, adjusting power modes), completing tasks such as autonomous navigation, threat identification, and patrol route planning; while the battery 33 provides power support for the entire system, ensuring continuous operation of the equipment.

[0039] Although embodiments of the present invention have been shown and described, these specific embodiments are merely illustrative of the invention and are not intended to limit it. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. A military high-strength automatic patrol amphibious boat, comprising a amphibious boat body (1), characterized in that: The outer surface of the amphibious boat body (1) is provided with two first sliding grooves (16), two second sliding grooves (19), and a limiting groove (5). Each of the two limiting grooves (5) is provided with a limiting seat (6). Each of the two first sliding grooves (16) is provided with a first sliding block (17), and a first rack (18) is mounted on the outer surface of the first sliding block (17). A side plate (15) is fixed to one side of the first rack (18). Each of the two second sliding grooves (19) is provided with a second sliding block (20), and a second rack (21) is mounted on the outer surface of the second sliding block (20). The two limiting grooves (16, 29, 20 ... 5) is equipped with a limiting seat (6) inside, and a water jet propulsion device (4) is installed between the limiting seat (6) and the second slide (20). The amphibious boat body (1) has two cavities (24) inside, and a second servo motor (25) is installed inside the cavity (24). The output end of the second servo motor (25) is connected to a worm gear (26). The cavity (24) is connected to a drive shaft (27) through a bearing. A worm wheel (28) is installed on the outer wall of the drive shaft (27), and one end of the drive shaft (27) extends to the outside of the amphibious boat body (1) and is equipped with a gear (22).

2. The military high-strength automatic patrol amphibious vessel according to claim 1, characterized in that: The outer surfaces of the amphibious vessel body (1) are also fitted with protective covers (29) by bolts, and guide grooves (30) are provided on both sides of the protective covers (29).

3. A military high-strength automatic patrol amphibious vessel according to claim 2, characterized in that: The guide groove (30) passes through one side of the first slide (17) and one side of the second slide (20). A bellows cover (31) is installed between the first slide (17) and the protective cover (29) and between the second slide (20) and the protective cover (29). The width of the bellows cover (31) is greater than the width of the guide groove (30).

4. A military high-strength automatic patrol amphibious vessel according to claim 1, characterized in that: The worm wheel (28) meshes with the worm (26), and one end of the worm (26) is connected to the inner wall of the cavity (24) through a bearing.

5. A military high-strength automatic patrol amphibious vessel according to claim 1, characterized in that: The gear (22) meshes with the first rack (18) and the second rack (21) respectively.

6. A military high-strength automatic patrol amphibious vessel according to claim 1, characterized in that: The amphibious vessel body (1) has two wings (2) installed on both sides, and the wings (2) are equipped with flight propellers (3).

7. A military high-strength automatic patrol amphibious vessel according to claim 1, characterized in that: The top of the amphibious vessel body (1) is equipped with a radar (7) and a high-definition camera (8), and the bottom of the amphibious vessel body (1) is equipped with a sonar device (32).

8. A military high-strength automatic patrol amphibious vessel according to claim 1, characterized in that: The bottom of the side plate (15) is bolted to a mounting plate (14), the bottom of the mounting plate (14) is bolted to a damping shock absorber (12), and the bottom of the damping shock absorber (12) is bolted to a frame (10).

9. A military high-strength automatic patrol amphibious vessel according to claim 8, characterized in that: A first servo motor (13) is installed on one side of the frame (10), and the output end of the first servo motor (13) is connected to a wheel (11).

10. A military high-strength automatic patrol amphibious vessel according to claim 1, characterized in that: The first rack (18) is slidably connected to the first slide groove (16) via the first slide block (17), and the second rack (21) is slidably connected to the second slide groove (19) via the second slide block (20).