Electric amphibious vehicle with liftable buoyancy auxiliary cabin

By designing a liftable buoyancy auxiliary cabin and height adjustment mechanism on the electric amphibious vehicle, the problems of increased wind resistance and insufficient buoyancy caused by fixed buoyancy components have been solved, achieving stability and efficiency in both land and water travel, making it suitable for various scenarios such as outdoor rescue and wetland scientific research.

CN121246460APending Publication Date: 2026-01-02CHANGAN UNIV
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Patent Information

Application Number
CN202511740795.4
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-11-25
Publication Date
2026-01-02

AI Technical Summary

Technical Problem

Existing electric amphibious vehicles have reduced driving efficiency due to increased wind resistance caused by fixed buoyancy components when driving on land. Furthermore, they are prone to tilting or sinking in deeper waters or when carrying heavy loads due to insufficient buoyancy.

Method used

Design an electric amphibious vehicle with a liftable buoyancy auxiliary cabin. The buoyancy cabin can be precisely adjusted through a height adjustment mechanism and a motor-driven bidirectional threaded rod. Combined with wheel axles and propellers, it provides land driving and water propulsion functions.

Benefits of technology

It achieves precise adjustment of structural stability and buoyancy when traveling on land and water, adapting to complex road conditions and multi-scenario needs, and replacing traditional single means of transportation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses an electric amphibious vehicle with a liftable buoyancy auxiliary cabin, and belongs to the technical field of amphibious vehicles. The electric amphibious vehicle with the liftable buoyancy auxiliary cabin comprises a vehicle body, the two sides of the vehicle body are each rotationally connected with a pair of wheel shafts, walking wheels are installed at one ends of the wheel shafts, sliding openings are formed in the middles of the two sides of the vehicle body, and the interior of each sliding opening is slidably connected with the corresponding buoyancy cabin. Height adjusting mechanisms used for adjusting the height of the buoyancy cabin are arranged on the two sides of the top end of the vehicle body, a plurality of transverse rods are installed at the bottom end of the vehicle tail of the vehicle body, a guide pipe is installed at one end of each transverse rod, and paddles are arranged in the guide pipes. A traditional single traffic tool is replaced, the multi-scene requirements of outdoor rescue, wetland scientific investigation and the like are met, and high practical value is achieved.
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Description

TECHNICAL FIELD

[0001] The present application relates to amphibious vehicle technology, in particular to an electric amphibious vehicle with a liftable buoyancy auxiliary cabin. BACKGROUND

[0002] With the diversification of traffic modes and the increasing demand for special scenarios (such as wading sections, shallow areas, and small lake crossings), amphibious vehicles have gradually attracted attention. Currently, most electric amphibious vehicles on the market achieve water floating function through the sealing design of the vehicle body or the fixed buoyancy components. However, such designs have obvious defects.

[0003] Based on the above, the present inventor found that the fixed buoyancy components of the current electric amphibious vehicles increase the wind resistance of the vehicle when driving on land, reducing the driving efficiency. When encountering deeper water or heavier load, the buoyancy provided by the fixed buoyancy components is often insufficient, which may cause the vehicle to tilt or even sink.

[0004] Therefore, in view of the above problems, the present application provides an electric amphibious vehicle with a liftable buoyancy auxiliary cabin to achieve a more practical purpose. SUMMARY

[0005] The present application aims to provide an electric amphibious vehicle with a liftable buoyancy auxiliary cabin to solve the problem of the current electric amphibious vehicles, as mentioned in the background, that the fixed buoyancy components increase the wind resistance of the vehicle when driving on land, reducing the driving efficiency. When encountering deeper water or heavier load, the buoyancy provided by the fixed buoyancy components is often insufficient, which may cause the vehicle to tilt or even sink.

[0006] In view of the above problems, the technical solution of the present application is as follows:

[0007] An electric amphibious vehicle with a liftable buoyancy auxiliary cabin, comprising a vehicle body, a pair of wheel shafts rotatably connected to the sides of the vehicle body, a walking wheel installed at one end of the wheel shaft, a sliding opening formed in the middle of the sides of the vehicle body, a buoyancy cabin slidably connected inside the sliding opening, a height adjustment mechanism for adjusting the height of the buoyancy cabin provided on both sides of the top end of the vehicle body, a plurality of horizontal rods installed at the bottom end of the tail of the vehicle body, a guide pipe installed at one end of the horizontal rod, a paddle provided inside the guide pipe, a drive shaft rotatably connected to the bottom end of the tail of the vehicle body, and the drive shaft and the paddle are fixedly connected at one end.

[0008] Furthermore, the height adjustment mechanism includes a bidirectional threaded rod, both ends of which are rotatably connected to a retainer. The bottom end of the retainer is fixedly connected to the top end of the vehicle body. Both ends of the bidirectional threaded rod are threadedly engaged with a movable frame. A pair of first hinges are installed at the bottom end of the movable frame. A connecting rod is installed at one end of the first hinge, and a second hinge is installed at one end of the connecting rod. One end of the second hinge is fixedly connected to the top end of the buoyancy chamber.

[0009] The beneficial effect of adopting the above-mentioned further solution is that, by engaging the bidirectional threaded rod of the height adjustment mechanism with the movable frame, the rotational motion is converted into relative / reverse movement of the movable frame; and by cooperating with the first hinge, the connecting rod and the second hinge, the movement of the movable frame is converted into the vertical lifting and lowering of the buoyancy chamber, thereby achieving precise buoyancy adjustment.

[0010] Furthermore, a first motor is mounted on one end face of one of the cages, and the output end of the first motor is connected to one end of a bidirectional threaded rod.

[0011] The advantage of adopting the above-mentioned further solution is that it provides stable power to the bidirectional threaded rod through the first motor on the cage, replacing manual adjustment.

[0012] Furthermore, a dustproof corrugated sleeve is fitted on the outer side of the bidirectional threaded rod.

[0013] The beneficial effect of adopting the above-mentioned further solution is that the dustproof corrugated sleeve on the outside of the bidirectional threaded rod isolates dust and gravel when driving on land and mud and water when driving on water, preventing impurities from entering the thread meshing surface and causing jamming.

[0014] Furthermore, a pair of sliding rods are slidably connected to the inner side of the movable frame, and the two ends of the sliding rods are respectively fixedly connected to the inside of the retainer.

[0015] The beneficial effect of adopting the above-mentioned further solution is that the movable frame is guided to move only along the axis of the slide bar inside the movable frame, thereby preventing the movable frame from tilting as the bidirectional threaded rod rotates.

[0016] Furthermore, a protective frame is installed on the outer top of the vehicle body.

[0017] The beneficial effect of adopting the above-mentioned further solution is that a protective structure is formed on the top of the outer side of the vehicle body to resist external impacts.

[0018] Furthermore, a pair of second motors are installed on both sides of the bottom of the vehicle body, and the output end of the second motor is fixedly connected to the other end of the wheel axle.

[0019] The beneficial effect of adopting the above-mentioned further solution is that the second motor inside the vehicle body directly drives the wheel axle, providing land driving power to the wheels.

[0020] Furthermore, a third motor is installed at the bottom of the interior of the vehicle body, and the output end of the third motor is fixedly connected to the other end of the drive shaft.

[0021] The beneficial effect of adopting the above-mentioned further solution is that the drive shaft is driven by the third motor inside the vehicle body, which drives the propeller blades to rotate and generate water propulsion.

[0022] Furthermore, a lithium battery for supplying power to the first motor, the second motor, and the third motor is installed in the center of the bottom of the vehicle body.

[0023] The beneficial effect of adopting the above-mentioned further solution is that the first motor, the second motor, and the third motor are powered by the lithium battery inside the vehicle body.

[0024] Compared with existing technologies, the beneficial effects of this invention are as follows: This electric amphibious vehicle with a liftable buoyancy auxiliary cabin provides a rigid load-bearing frame for the entire vehicle through the vehicle body, ensuring structural stability during both land and water travel; it enables land travel through the cooperation of wheel axles and wheels, adapting to complex road conditions such as mud and gravel; it guides the lifting and lowering of the buoyancy cabin through a sliding port to prevent the buoyancy cabin from shifting; it adjusts the height of the buoyancy cabin through a height adjustment mechanism, lowering the buoyancy cabin to enhance the buoyancy of the entire vehicle when traveling in water, and raising the buoyancy cabin to avoid collisions when traveling on land; it provides protection for the propeller blades through a crossbar fixing guide; and it achieves water propulsion by driving the propeller blades to rotate through a drive shaft. This invention can effectively realize dual functions of land off-road and water navigation, replacing traditional single-mode transportation, and is suitable for various scenarios such as outdoor rescue and wetland scientific research, and has high practical value. Attached Figure Description

[0025] Figure 1 This is one of the three-dimensional structural schematic diagrams disclosed in the embodiments of the present invention;

[0026] Figure 2 This is a second three-dimensional structural schematic diagram disclosed in an embodiment of the present invention;

[0027] Figure 3 This is the third three-dimensional structural schematic diagram disclosed in the embodiment of the present invention;

[0028] Figure 4 This is one of the partial cross-sectional views of the vehicle body disclosed in an embodiment of the present invention;

[0029] Figure 5 This is the second partial cross-sectional view of the vehicle body disclosed in an embodiment of the present invention.

[0030] In the diagram: 1. Vehicle body; 101. Sliding port; 2. Protective frame; 3. Wheel axle; 4. Running wheel; 5. Buoyancy chamber; 6. Height adjustment mechanism; 601. Two-way threaded rod; 602. Cage; 603. Movable frame; 604. First motor; 605. Sliding rod; 606. First hinge; 607. Connecting rod; 608. Second hinge; 7. Second motor; 8. Crossbar; 9. Guide tube; 10. Blade; 11. Drive shaft; 12. Third motor; 13. Lithium battery. Detailed Implementation

[0031] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] Please see Figures 1-5 This invention provides a technical solution: an electric amphibious vehicle with a liftable buoyancy auxiliary cabin, comprising a vehicle body 1, a pair of wheel axles 3 rotatably connected to both sides of the vehicle body 1, a driving wheel 4 mounted on one end of each wheel axle 3, a sliding opening 101 opened in the middle of both sides of the vehicle body 1, a buoyancy cabin 5 slidably connected inside the sliding opening 101, a height adjustment mechanism 6 for adjusting the height of the buoyancy cabin 5 provided on both sides of the top of the vehicle body 1, a plurality of crossbars 8 mounted at the bottom of the rear of the vehicle body 1, a guide tube 9 mounted at one end of each crossbar 8, a propeller 10 mounted inside the guide tube 9, and a drive shaft 1 rotatably connected at the bottom of the rear of the vehicle body 1. 1. One end of the drive shaft 11 is fixedly connected to one end of the propeller blade 10. The vehicle body 1 provides a rigid load-bearing frame for the whole vehicle, ensuring structural stability when traveling on land and water. The wheel axle 3 cooperates with the walking wheels 4 to achieve land travel, adapting to complex road conditions such as mud and gravel. The sliding port 101 guides the buoyancy chamber 5 to rise and fall, preventing the buoyancy chamber 5 from shifting. The height of the buoyancy chamber 5 is adjusted by the height adjustment mechanism 6. When traveling in water, the buoyancy chamber 5 is lowered to enhance the buoyancy of the whole vehicle. When traveling on land, the buoyancy chamber 5 is raised to avoid collisions. The guide tube 9 is fixed by the crossbar 8 to provide protection for the propeller blade 10. The drive shaft 11 drives the propeller blade 10 to rotate, realizing water propulsion.

[0033] The height adjustment mechanism 6 includes a bidirectional threaded rod 601, with retainers 602 rotatably connected to both ends of the bidirectional threaded rod 601. The bottom end of the retainer 602 is fixedly connected to the top end of the vehicle body 1. Both ends of the bidirectional threaded rod 601 are threadedly engaged with movable frames 603. A pair of first hinges 606 are installed at the bottom end of the movable frames 603. A connecting rod 607 is installed at one end of the first hinge 606, and a second hinge 608 is installed at one end of the connecting rod 607. One end of the second hinge 608 is fixedly connected to the top end of the buoyancy chamber 5. By engaging the bidirectional threaded rod 601 with the movable frames 603, the rotational motion is converted into relative / reverse movement of the movable frames 603. Through the cooperation of the first hinges 606, the connecting rod 607, and the second hinge 608, the movement of the movable frames 603 is converted into the vertical lifting and lowering of the buoyancy chamber 5, thereby achieving precise buoyancy adjustment.

[0034] One of the cages 602 has a first motor 604 mounted on one end face. The output end of the first motor 604 is connected to one end of the bidirectional threaded rod 601. The first motor 604 on the cage 602 provides stable power to the bidirectional threaded rod 601, replacing manual adjustment.

[0035] The outer side of the bidirectional threaded rod 601 is fitted with a dustproof corrugated sleeve. The dustproof corrugated sleeve on the outer side of the bidirectional threaded rod 601 isolates dust and gravel when driving on land and mud and water when driving on water, preventing impurities from entering the thread meshing surface and causing jamming.

[0036] The movable frame 603 has a pair of sliding rods 605 slidably connected to its inner side. The two ends of the sliding rods 605 are fixedly connected to the inside of the retainer 602. The movable frame 603 is guided to move only along the axial direction of the sliding rods 605 through the sliding rods 605, so as to prevent the movable frame 603 from rotating and tilting with the bidirectional threaded rod 601.

[0037] Among them, a protective frame 2 is installed on the top outer side of the body 1. The protective frame 2 on the top outer side of the body 1 forms a protective structure for the vehicle body to resist external impacts.

[0038] The vehicle body 1 has a pair of second motors 7 installed on both sides of the bottom of the interior. The output end of the second motor 7 is fixedly connected to the other end of the wheel axle 3. The second motor 7 inside the vehicle body 1 directly drives the wheel axle 3 to provide land driving power for the walking wheel 4.

[0039] The third motor 12 is installed at the bottom of the interior of the body 1. The output end of the third motor 12 is fixedly connected to the other end of the drive shaft 11. The third motor 12 inside the body 1 drives the drive shaft 11, which in turn drives the propeller 10 to rotate and generate water propulsion.

[0040] The vehicle body 1 has a lithium battery 13 installed in the middle of the bottom of its interior, which supplies power to the first motor 604, the second motor 7 and the third motor 12. The lithium battery 13 inside the vehicle body 1 provides power to the first motor 604, the second motor 7 and the third motor 12.

[0041] Specifically, the working principle of this type of electric amphibious vehicle with a liftable buoyancy auxiliary cabin is as follows: During use, the vehicle body 1 provides a rigid load-bearing frame for the entire vehicle, ensuring structural stability when traveling on land and water; the wheel axle 3 cooperates with the driving wheels 4 to achieve land travel, adapting to complex road conditions such as mud and gravel; the sliding port 101 guides the buoyancy cabin 5 to rise and fall, preventing the buoyancy cabin 5 from shifting; the height of the buoyancy cabin 5 is adjusted by the height adjustment mechanism 6, lowering the buoyancy cabin 5 when traveling in water to enhance the buoyancy of the entire vehicle, and raising the buoyancy cabin 5 when traveling on land to avoid collisions; The guide tube 9 is fixed by the crossbar 8 to provide protection for the propeller blade 10; the propeller blade 10 is rotated by the drive shaft 11 to achieve water propulsion; the rotational motion is converted into relative / reverse movement of the movable frame 603 by the engagement of the bidirectional threaded rod 601 of the height adjustment mechanism 6; the movement of the movable frame 603 is converted into the vertical lifting and lowering of the buoyancy chamber 5 by the cooperation of the first hinge 606, the connecting rod 607 and the second hinge 608, so as to achieve precise buoyancy adjustment; the first motor 604 on the retainer 602 is a bidirectional threaded rod. 601 provides stable power, replacing manual adjustment. The dustproof corrugated sleeve on the outside of the bidirectional threaded rod 601 isolates dust and gravel during land travel and mud and water during water travel, preventing impurities from entering the threaded meshing surface and causing jamming. The sliding rod 605 on the inside of the movable frame 603 guides the movable frame 603 to move only along the axial direction of the sliding rod 605, preventing the movable frame 603 from rotating and tilting with the bidirectional threaded rod 601. The protective frame 2 at the top of the outer side of the vehicle body 1 forms a protective structure to resist external impacts. The second motor 7 inside the vehicle body 1 directly drives the wheel axle 3 to provide power for the walking wheels 4 for land travel. The third motor 12 inside the vehicle body 1 drives the drive shaft 11, which drives the propeller 10 to rotate and generate water propulsion. The lithium battery 13 inside the vehicle body 1 provides unified power to the first motor 604, the second motor 7, and the third motor 12. This invention can effectively realize dual functions of land off-road and water navigation, replacing traditional single transportation tools. It is suitable for various scenarios such as outdoor rescue and wetland scientific research, and has high practical value.

Claims

1. An electric amphibious vehicle with a liftable buoyancy auxiliary cabin, characterized in that, The vehicle includes a body body (1), on both sides of which a pair of wheel axles (3) are rotatably connected. A driving wheel (4) is installed at one end of each wheel axle (3). A sliding opening (101) is provided in the middle of both sides of the body body (1). A buoyancy chamber (5) is slidably connected inside the sliding opening (101). A height adjustment mechanism (6) for adjusting the height of the buoyancy chamber (5) is provided on both sides of the top of the body body (1). Several crossbars (8) are installed at the bottom of the rear of the body body (1). A guide tube (9) is installed at one end of each crossbar (8). A blade (10) is provided inside the guide tube (9). A drive shaft (11) is rotatably connected to the bottom of the rear of the body body (1). One end of the drive shaft (11) is fixedly connected to one end of the blade (10).

2. An electric amphibious vehicle with a liftable buoyancy auxiliary cabin according to claim 1, characterized in that, The height adjustment mechanism (6) includes a bidirectional threaded rod (601), both ends of which are rotatably connected to a retainer (602). The bottom end of the retainer (602) is fixedly connected to the top end of the vehicle body (1). Both ends of the bidirectional threaded rod (601) are threadedly engaged with a movable frame (603). A pair of first hinges (606) are installed at the bottom end of the movable frame (603). A connecting rod (607) is installed at one end of the first hinge (606). A second hinge (608) is installed at one end of the connecting rod (607). One end of the second hinge (608) is fixedly connected to the top end of the buoyancy chamber (5).

3. An electric amphibious vehicle with a liftable buoyancy auxiliary cabin according to claim 2, characterized in that, One end face of one of the cages (602) is fitted with a first motor (604), the output end of the first motor (604) being connected to one end of a bidirectional threaded rod (601).

4. An electric amphibious vehicle with a liftable buoyancy auxiliary cabin according to claim 2, characterized in that, The outer side of the bidirectional threaded rod (601) is fitted with a dustproof corrugated sleeve.

5. An electric amphibious vehicle with a liftable buoyancy auxiliary cabin according to claim 2, characterized in that, A pair of slide rods (605) are slidably connected to the inner side of the movable frame (603), and the two ends of the slide rods (605) are respectively fixedly connected to the inside of the retainer (602).

6. An electric amphibious vehicle with a liftable buoyancy auxiliary cabin according to claim 1, characterized in that, A protective frame (2) is installed on the top outer side of the vehicle body (1).

7. An electric amphibious vehicle with a liftable buoyancy auxiliary cabin according to claim 3, characterized in that, A pair of second motors (7) are installed on both sides of the bottom of the vehicle body (1), and the output end of the second motor (7) is fixedly connected to the other end of the wheel axle (3).

8. An electric amphibious vehicle with a liftable buoyancy auxiliary cabin according to claim 7, characterized in that, A third motor (12) is installed at the bottom of the interior of the vehicle body (1), and the output end of the third motor (12) is fixedly connected to the other end of the drive shaft (11).

9. An electric amphibious vehicle with a liftable buoyancy auxiliary cabin according to claim 8, characterized in that, A lithium battery (13) for supplying power to the first motor (604), the second motor (7) and the third motor (12) is installed in the middle of the bottom of the interior of the vehicle body (1).