Movement auxiliary device based on amphibious all-terrain vehicle tires

Abstract

The invention relates to the technical field of amphibious all-terrain vehicles, in particular to a moving auxiliary device based on amphibious all-terrain vehicle tires, which comprises an L-shaped frame fixedly mounted with an amphibious vehicle, a buoyancy tank assembly is arranged below the L-shaped frame, and the buoyancy tank assembly comprises a buoyancy tank I, a buoyancy tank II and a buoyancy tank III which are mutually clamped in a sliding manner; the outer side of the L-shaped frame is slidably connected with a position adjusting assembly, the position adjusting assembly comprises a moving rod, the bottom of the moving rod is fixedly connected with an annular block, and the annular block is rotationally connected with the first floating box in a clamped mode. According to the amphibious vehicle, the floating box assemblies are arranged on the outer sides of the tires of a traditional amphibious vehicle, the size of the floating box assemblies can be adjusted through forward and reverse rotation of the tires of the amphibious vehicle, and the larger the size of the floating box assemblies is, the larger the buoyancy provided for the vehicle in water is; therefore, the buoyancy at the position of the tire can be adjusted by controlling the tire of the amphibious vehicle to rotate forwards and backwards in different directions, and the amphibious vehicle can travel in water in a balanced manner.

Description

Technical Field

[0001] The invention relates to the technical field of amphibious all-terrain vehicles, in particular to a mobility assisting device based on amphibious all-terrain vehicle tires. Background Art

[0002] Amphibious all-terrain vehicles are vehicles that can move both on land and in water. On land, amphibious vehicles mainly move through multiple tires, while in water, amphibious vehicles are mainly driven by propellers at the tail to move in the water. Among them, the common Bobcat amphibious vehicle uses an all-wheel drive system on the body, so multiple tires on the body can provide power to rotate independently. This design enhances the amphibious vehicle's ability to pass through complex terrain and can continue to drive even if some tires are damaged. When most amphibious vehicles move in water, the multiple tires on the amphibious vehicles are basically idle in the water. The rotation of the tires cannot be combined to adjust the floating of the amphibious vehicle to a balanced state, nor can the rotation of the tires be combined to assist the amphibious vehicle to move forward and backward. As a result, the tires that are mainly suitable for ground travel have a single function. In addition, most amphibious vehicles lack a structure to assist the amphibious vehicles in entering the water smoothly. When the amphibious vehicle enters the water from a position where there is a height difference between the water surface and the embankment, the body of the vehicle tilts so that the front of the vehicle is immersed in the water for a short time, which easily causes water to flood into the vehicle. Summary of the Invention

[0003] The object of the present invention is to provide a mobility assist device based on amphibious all-terrain vehicle tires to solve the problems raised in the above background technology.

[0004] To achieve the above object, the present invention provides the following technical solutions: A mobility assist device based on amphibious all-terrain vehicle tires, comprising: L-shaped frame, fixed to the amphibious vehicle; A pontoon assembly is arranged below the L-shaped frame. The pontoon assembly can not only increase the buoyancy of the amphibious vehicle in the water, but also assist the amphibious vehicle in moving in the water. The pontoon assembly includes pontoon 1, pontoon 2, and pontoon 3 that are slidably engaged with each other; A position adjustment assembly is slidably connected to the L-shaped frame and is capable of adjusting the position of the buoyancy chamber assembly. The position adjustment assembly includes a moving rod, a ring block is fixed to the bottom of the moving rod, and the ring block is rotatably engaged with the buoyancy chamber; The transmission assembly is arranged between the amphibious vehicle tire and the L-shaped frame. The transmission assembly can not only drive the pontoon assembly to rotate with the help of the tire rotation, but also adjust the size of the pontoon expansion volume. The transmission assembly includes a transmission wheel fixed to the tire hub, and a transmission sleeve 1 and a transmission sleeve 2 are fixed in the middle of the transmission wheel. The transmission sleeve 1 is internally connected to the transmission shaft 1, and the transmission sleeve 2 is internally connected to the transmission shaft 2.

[0005] Furthermore, the position adjustment assembly further includes a hydraulic cylinder fixedly connected to the L-shaped frame, an output end of the hydraulic cylinder is fixedly connected to a moving rod, and the moving rod is slidably connected to the L-shaped frame.

[0006] The invention further comprises: a crossbeam is fixed between two adjacent L-shaped frames, and a fixing seat fixedly connected to the hydraulic cylinder is fixed on the L-shaped frame.

[0007] Furthermore, the second pontoon is slidably engaged with the first pontoon, and the third pontoon is slidably engaged with the second pontoon.

[0008] Furthermore, slide grooves are provided on the inner sides of both ends of the pontoon box 1 and the pontoon box 2, and clamping blocks are fixed on the inner sides of both ends of the pontoon box 2 and the pontoon box 3, and the clamping blocks are slidably connected to the slide grooves at corresponding positions.

[0009] Furthermore, two rotating columns are fixed on one side of the first buoyancy box, and an annular groove for rotatably engaging with the rotating columns is formed on the outer side of the annular block.

[0010] Furthermore, an electromagnet is embedded and fixed inside the annular groove, an end of the rotating column close to the electromagnet is embedded in a fixed iron block, and the electromagnet can adsorb the fixed iron block when energized.

[0011] Furthermore, the transmission shaft 1 includes a shaft rod, and a screw rod and a transmission joint 1 are respectively fixed at both ends of the shaft rod.

[0012] Furthermore, the shaft is rotatably connected to the second transmission shaft, the screw is screwed to the third buoyancy box, the screw is slidably and rotatably plugged into the L-shaped frame, and the transmission joint 1 is transmission plugged into the first transmission sleeve.

[0013] Furthermore, the second transmission shaft includes a sleeve rotatably connected to the shaft rod, one end of the sleeve is fixed with a second transmission connector for transmission plug-in connection with the second transmission sleeve, and the other end of the sleeve is fixedly connected to the first buoyancy tank.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. By arranging a buoyancy box assembly on the outside of multiple tires of the amphibious vehicle, the output end of the hydraulic cylinder carries the annular block on the moving rod to move toward the tire, so that the buoyancy box 1 on the buoyancy box assembly carries the rotating shaft 1 and the rotating shaft 2 to move toward the tire. When the transmission joint 1 at the end of the transmission shaft 1 is inserted into the interior of the transmission sleeve 1 and stops moving, the rotation of the amphibious vehicle tire causes the transmission wheel to rotate with the transmission sleeve 1, and then the screw rod on the transmission shaft 1 is screwed and rotated on the buoyancy box 3, so that the buoyancy box 3 slides out from the interior of the buoyancy box 2, and the buoyancy box 2 slides out from the interior of the buoyancy box 1, so as to increase the volume of the buoyancy box assembly and increase the buoyancy of the tire position in the water. When a local position of the amphibious vehicle is heavier than other positions due to the presence of people or materials, the buoyancy box assembly close to the heavier position of the vehicle body can be deployed nearby, so that the buoyancy increased by the buoyancy box assembly can weaken the imbalance of the amphibious vehicle. By driving the tire to rotate in the opposite direction, the drive shaft 1 rotates in the opposite direction, so that the float 3 connected to the screw rod can be stored in the inside of the float 2. The float 2 can be moved into the inside of the float 1 under the drive of the float 1. The buoyancy is reduced by reducing the volume of the float assembly, thereby achieving the adjustment of the volume of the float assembly by the forward and reverse rotation of the tire. By adjusting the volume of the float assembly in different directions of the amphibious vehicle, the buoyancy at different positions around the vehicle body can be controlled, which helps the amphibious vehicle to float in the water in a balanced manner and effectively prevents the amphibious vehicle from tilting and taking in water and overturning.

[0015] 2. The positioning assembly drives the transmission shaft 1 and the transmission sleeve 1 to be connected. The transmission shaft 1 drives the buoyancy assembly to expand, and then the output end of the hydraulic cylinder on the positioning assembly continues to shrink in length, so that the transmission joint 2 of the transmission shaft 2 is connected to the inside of the transmission sleeve 2. The transmission joint 1 at the end of the transmission shaft 1 passes through the transmission sleeve 1. At this time, the rotation of the amphibious vehicle tire transmission sleeve 1 no longer drives the transmission shaft 1 to rotate, but drives the transmission shaft 2 to rotate. The sleeve on the transmission shaft 2 rotates the buoyancy assembly with the buoyancy assembly to rotate the entire buoyancy assembly. Multiple rotating buoyancy assemblies are equivalent to the paddles of a boat, which helps to drive the amphibious vehicle to move quickly in the water, and the rotation direction of the buoyancy assembly can be controlled by changing the rotation direction of the tire. The buoyancy assembly can be rotated forward and reverse as needed to realize the forward and backward movement of the amphibious vehicle, thereby achieving the effect of assisting the amphibious vehicle to move forward and backward by rotating the tire.

[0016] 3. By unfolding the pontoon assembly in front of the amphibious vehicle and adjusting it to a state vertical to the water surface, the multiple pontoons on the pontoon assembly (including pontoon 1, pontoon 2 and pontoon 3) can increase the movement resistance of the amphibious vehicle in the water, which helps to slow down the amphibious vehicle. When the buoyancy of the amphibious vehicle needs to be increased, the unfolded pontoon assembly can be placed flat in the water to increase the buoyancy of the vehicle body. When the amphibious vehicle needs to enter the water from a embankment with a height difference, the multiple unfolded pontoon assemblies near the front of the amphibious vehicle can be rotated to a vertical or inclined angle for entering the water, so that the front of the vehicle can enter the water at the same time as the front of the vehicle enters the water to increase the buoyancy of the front of the vehicle, effectively preventing water from flooding into the vehicle due to insufficient buoyancy when the front of the vehicle directly enters the water, and facilitating the smooth entry of the amphibious vehicle into the water. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention and the Bobcat amphibious vehicle; Figure 2 It is a schematic diagram of the overall structure of the present invention; Figure 3 It is a schematic diagram of the present invention and the tire installation structure; Figure 4 It is a schematic diagram of the structure of the position adjustment component in the present invention; Figure 5 This is a schematic diagram of the internal structure of the buoyancy chamber assembly, transmission sleeve 1, transmission sleeve 2, and annular block in the present invention; Figure 6 This is a schematic diagram of the split three-dimensional structure of the transmission shaft 1, transmission shaft 2, transmission sleeve 1, and transmission sleeve 2 in the present invention; Figure 7 This is a schematic diagram of the position adjustment structure of the buoyancy chamber assembly in the present invention; Figure 8 It is a schematic diagram of the volume adjustment structure of the buoyancy chamber assembly in the present invention.

[0018] In the figure: 100, L-shaped frame; 110, crossbeam; 120, fixed seat; 200, pontoon assembly; 210, pontoon one; 211, rotating column; 220, pontoon two; 230, pontoon three; 240, slide; 300, adjustment assembly; 310, moving rod; 320, annular block; 321, electromagnet; 330, hydraulic cylinder; 400, transmission assembly; 410, transmission wheel; 411, outer ring body; 412, connecting rod; 413, inner ring body; 420, transmission sleeve one; 430, transmission sleeve two; 440, transmission shaft one; 441, shaft rod; 442, screw rod; 443, transmission joint one; 450, transmission shaft two; 451, sleeve; 452, transmission joint two; 500, float; 510, fixed frame. DETAILED DESCRIPTION

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] For example 1, please refer to Figure 1 - Figure 8 In an embodiment of the present invention, a mobility assist device based on an amphibious all-terrain vehicle tire includes an L-shaped frame 100 fixedly mounted on the amphibious vehicle. A pontoon assembly 200 is provided below the L-shaped frame 100. The pontoon assembly 200 includes a pontoon 1 210, a pontoon 2 220, and a pontoon 3 230 that are slidably engaged with each other. A positioning assembly 300 is slidably connected to the outer side of the L-shaped frame 100. The positioning assembly 300 includes a moving rod 310. The bottom of the moving rod 310 is fixedly connected to an annular block 320. The annular block 320 is rotatably connected to the pontoon 210, and a transmission assembly 400 is provided between the L-shaped frame 100 and the amphibious vehicle tire. The transmission assembly 400 includes a transmission wheel 410 fixedly connected to the tire hub, and a transmission sleeve 1 420 and a transmission sleeve 2 430 are fixedly connected to the middle part of the transmission wheel 410. The transmission sleeve 1 420 is fixedly connected to the transmission sleeve 2 430. The transmission sleeve 1 420 is internally connected to the transmission shaft 1 440 for transmission transmission, and the transmission sleeve 2 430 is internally connected to the transmission shaft 2 450 for transmission transmission.

[0021] Specifically, by arranging a pontoon assembly 200 on the outside of the tire of a traditional amphibious vehicle, the pontoon assembly 200 can adjust the size of the volume by rotating the amphibious vehicle tire forward and backward. The larger the volume of the pontoon assembly 200, the greater the buoyancy provided to the vehicle in the water, thereby realizing the forward and reverse rotation of the tires in different directions of the amphibious vehicle to adjust the buoyancy of the tire position, which helps the amphibious vehicle to move in the water in a balanced manner. After the pontoon assembly 200 is adjusted and unfolded, the pontoon assembly 200 can also be driven to rotate forward and backward in the water by the forward and reverse rotation of the tires, thereby realizing the use of the pontoon assembly 200 as a paddle. When the pontoon assembly 200 rotates in different directions, the amphibious vehicle is driven forward or backward in the water, which is conducive to improving the diversity of the functions of the amphibious vehicle tires.

[0022] like Figure 1 As shown, in this embodiment, floats 500 are provided at the front and rear of the amphibious vehicle. The shape of the floats 500 adapts to the shape layout of the front and rear of the amphibious vehicle. The outer side of the floats 500 is connected with a fixed frame 510 installed and fixed to the amphibious vehicle, which helps to further improve the buoyancy of the amphibious vehicle in water.

[0023] like Figure 2 and Figure 3As shown, in this embodiment, the transmission wheel 410 includes an outer ring body 411 fixedly connected to the tire hub, a plurality of connecting rods 412 are evenly fixed on the inner side of the outer ring body 411, an inner ring body 413 is fixedly connected between the plurality of connecting rods 412, and the inner ring body 413 is sleeved and fixed on the outside of the transmission sleeve 1 420 and the transmission sleeve 2 430, thereby realizing the transmission of the rotational force of the tire to the transmission sleeve 1 420 and the transmission sleeve 2 430.

[0024] like Figure 2 and Figure 3 As shown, in this embodiment, the positioning assembly 300 also includes a hydraulic cylinder 330 fixedly connected to the L-shaped frame 100, the output end of the hydraulic cylinder 330 is fixedly connected to the moving rod 310, the moving rod 310 is slidingly connected to the L-shaped frame 100, and a fixed seat 120 fixedly connected to the hydraulic cylinder 330 is fixedly connected to the L-shaped frame 100.

[0025] In this embodiment, combined with Figure 5 The output end of the hydraulic cylinder 330 contracts in length, causing the moving rod 310 to move toward the tire with the annular block 320, and the annular block 320 to move toward the tire with the buoyancy box 210, and the buoyancy box 210 moves toward the tire with the sleeve 451 and the shaft 441. When the transmission joint 1 443 at one end of the shaft 441 is plugged into the transmission sleeve 1 420, the power of the tire will be transmitted to the screw rod 442 through the shaft 441 to adjust the expansion or storage of the buoyancy box assembly 200. When the transmission joint 1 443 passes through the transmission sleeve 1 420, the shaft 441 enters the interior of the transmission sleeve 1 420, and the transmission sleeve 1 420 no longer rotates with the shaft 441. At the same time, the transmission joint 2 452 on the sleeve 451 is plugged into the interior of the transmission sleeve 2 430. At this time, the tire power is transmitted to the sleeve 451, and the sleeve 451 will drive the buoyancy box assembly 200 to rotate and drain water, thereby assisting the amphibious vehicle to move.

[0026] like Figure 5 As shown, in this embodiment, slide grooves 240 are provided on the inner sides of both ends of pontoon box 1 210 and pontoon box 2 220, and blocks are fixed on the inner sides of both ends of pontoon box 2 220 and pontoon box 3 230. The blocks are slidably connected to the slide grooves 240 at the corresponding positions, thereby realizing the sliding connection between pontoon box 2 220 and pontoon box 1 210, and the sliding connection between pontoon box 3 230 and pontoon box 2 220, so that adjacent pontoons can be expanded or stored without being separated from each other.

[0027] like Figure 4 and Figure 5 As shown, in this embodiment, two rotating columns 211 are fixed on one side of the float box 210, and an annular groove is provided on the outer side of the annular block 320 for rotatably engaging with the rotating column 211. An electromagnet 321 is embedded and fixed on the inner side of the annular groove, and an end of the rotating column 211 close to the electromagnet 321 is embedded in a fixed iron block, and the electromagnet 321 can adsorb the fixed iron block when energized.

[0028] In this embodiment, when the float assembly 200 rotates as a whole, the two rotating columns 211 on the float 1 210 rotate inside the annular block 320. At this time, the electromagnet 321 is in a power-off state, and the electromagnet 321 does not adsorb and fix the rotating columns 211. When the screw rod 442 rotates to drive the float 3 230 to rotate and move, the electromagnet 321 is energized to adsorb and fix the float 1 210, so that the float 1 210 is fixed on the outside of the annular block 320, so that multiple floats can be deployed under the rotation action of the screw rod 442.

[0029] In this embodiment, when the pontoon assembly 200 needs to be adjusted to a certain position to stay and be fixed, for example, the pontoon assembly 200 is adjusted to a state parallel to the water surface to increase the buoyancy of the amphibious vehicle, the electromagnet 321 can still be used to adsorb and fix the pontoon 210 to locate and fix the position of the entire pontoon assembly 200.

[0030] like Figure 5 and Figure 6 As shown, in this embodiment, the transmission shaft 1 440 includes a shaft 441, and the two ends of the shaft 441 are respectively fixed with a screw rod 442 and a transmission joint 1 443, and the transmission shaft 2 450 includes a sleeve 451 rotatably connected to the shaft 441, and one end of the sleeve 451 is fixed with a transmission joint 2 452 that is transmission-plugged with the transmission sleeve 2 430, and the other end of the sleeve 451 is fixedly connected to the float 1 210.

[0031] In this embodiment, the shaft 441 of the transmission shaft 440 is rotationally connected to the sleeve 451 of the transmission shaft 2 450, so the two rotation processes of the transmission shaft 1 440 driving the screw rod 442 to rotate and the sleeve 451 driving the float 1 210 to rotate do not interfere with each other. The transmission joint 1 443 and the transmission joint 2 452 are both hexagonal, and the transmission sleeve 1 420 and the transmission sleeve 2 430 are both provided with hexagonal grooves. The outer dimensions of the transmission joint 1 443 are adapted to be plugged in with the transmission sleeve 1 420, and the outer dimensions of the transmission joint 2 452 are adapted to be plugged in with the transmission sleeve 2 430. The diameter of the shaft 441 is smaller than the diameter of the transmission sleeve 1 420. After the shaft 441 moves to the inside of the transmission sleeve 1 420, it will not interfere with the rotation of the transmission sleeve 1 420.

[0032] like Figure 5 As shown, in this embodiment, the screw rod 442 is screwed together with the pontoon three 230, so that the pontoon three 230 can be adjusted to move out of the pontoon two 220 or move into the pontoon two 220 by rotating the screw rod 442 forward and backward, thereby achieving the effect of regulating the overall volume of the pontoon assembly 200.

[0033] In this embodiment, combined with Figure 3As shown, the screw rod 442 is slidably and rotatably plugged into the L-shaped frame 100. When the screw rod 442 rotates, the end of the screw rod 442 rotates on the L-shaped frame 100. When the transmission shaft 440 moves the screw rod 442 left and right, the end of the screw rod 442 slides on the L-shaped frame 100, and the L-shaped frame 100 can stably support the screw rod 442.

[0034] like Figure 7 As shown, in this embodiment, when movement assist devices are fixed on the outer sides of multiple tires of the amphibious vehicle, a crossbeam 110 can be fixedly connected between two adjacent L-shaped frames 100. The crossbeam 110 can enhance the overall firmness of the multiple L-shaped frames 100 installed on the amphibious vehicle.

[0035] In this embodiment, when the amphibious vehicle needs to slow down, the two front pontoon assemblies 200 can be adjusted to a vertical state. At this time, the pontoon assemblies 200 will contact water over a large area when the amphibious vehicle is moving, and the water resistance can be used to slow down the amphibious vehicle.

[0036] like Figure 8 As shown, in this embodiment, when the front of the amphibious vehicle is heavier, the buoyancy tank assembly 200 at the front wheel position of the amphibious vehicle can be separately unfolded and placed flat on the water surface to achieve targeted improvement of the buoyancy of a certain direction of the amphibious vehicle. A gyroscope, a conventional component, can be installed on the amphibious vehicle to detect the balance state of the amphibious vehicle in the water. If it is detected that the amphibious vehicle is tilted, the buoyancy of the buoyancy tank assembly 200 at a local position can be adjusted to restore the balance state of the amphibious vehicle.

[0037] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0038] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A mobility assist device based on amphibious all-terrain vehicle tires, characterized in that: include: An L-shaped frame (100) fixed to the amphibious vehicle; A pontoon assembly (200) is arranged below the L-shaped frame (100). The pontoon assembly (200) can increase the buoyancy of the amphibious vehicle in water and assist the amphibious vehicle in moving in water. The pontoon assembly (200) includes a pontoon 1 (210), a pontoon 2 (220), and a pontoon 3 (230) that are slidably engaged with each other. The position adjustment component (300) is slidably connected to the L-shaped frame (100) and can adjust the position of the buoyancy box component (200). The position adjustment component (300) includes a moving rod (310). An annular block (320) is fixed to the bottom of the moving rod (310). The annular block (320) is rotatably engaged with the buoyancy box (210). The transmission assembly (400) is arranged between the tire of the amphibious vehicle and the L-shaped frame (100). The transmission assembly (400) can not only drive the buoyancy box assembly to rotate by virtue of the rotation of the tire, but also adjust the size of the expanded volume of the buoyancy box. The transmission assembly (400) includes a transmission wheel (410) fixed to the tire hub, a transmission sleeve 1 (420) and a transmission sleeve 2 (430) fixed to the middle of the transmission wheel (410), a transmission shaft 1 (440) is connected to the inside of the transmission sleeve 1 (420), and a transmission shaft 2 (450) is connected to the inside of the transmission sleeve 2 (430).

2. The mobility assist device based on amphibious all-terrain vehicle tires according to claim 1, characterized in that: The position adjustment assembly (300) further comprises a hydraulic cylinder (330) fixedly connected to the L-shaped frame (100), an output end of the hydraulic cylinder (330) being fixedly connected to the moving rod (310), and the moving rod (310) being slidably connected to the L-shaped frame (100).

3. A mobility assist device based on amphibious all-terrain vehicle tires according to claim 1 or 2, characterized in that: A crossbeam (110) is fixed between two adjacent L-shaped frames (100), and a fixing seat (120) fixedly connected to the hydraulic cylinder (330) is fixed on the L-shaped frame (100).

4. The mobility assist device based on amphibious all-terrain vehicle tires according to claim 1, characterized in that: The second pontoon (220) is slidably connected to the first pontoon (210), and the third pontoon (230) is slidably connected to the second pontoon (220).

5. The mobility assist device based on amphibious all-terrain vehicle tires according to claim 4, characterized in that: Slide grooves (240) are provided on the inner sides of both ends of pontoon box 1 (210) and pontoon box 2 (220), and blocks are fixed on the inner sides of both ends of pontoon box 2 (220) and pontoon box 3 (230), and the blocks are slidably connected to the slide grooves (240) at corresponding positions.

6. The mobility assist device based on amphibious all-terrain vehicle tires according to claim 1, characterized in that: Two rotating columns (211) are fixed on one side of the first buoyancy box (210), and an annular groove for rotating and clamping with the rotating columns (211) is provided on the outer side of the annular block (320).

7. The mobility assist device based on amphibious all-terrain vehicle tires according to claim 6, characterized in that: An electromagnet 321 is embedded and fixed inside the annular groove, and an end of the rotating column (211) close to the electromagnet (321) is embedded in a fixed iron block. The electromagnet 321 can adsorb the fixed iron block when energized.

8. The mobility assist device based on amphibious all-terrain vehicle tires according to claim 1, characterized in that: The transmission shaft 1 (440) includes a shaft (441), and a screw rod (442) and a transmission joint 1 (443) are respectively fixed at both ends of the shaft (441).

9. The mobility assist device based on amphibious all-terrain vehicle tires according to claim 8, characterized in that: The shaft (441) is rotationally connected to the second transmission shaft (450), the screw rod (442) is screwed and connected to the third buoyancy box (230), the screw rod (442) is slidingly and rotationally plugged into the L-shaped frame (100), and the transmission joint (443) is transmission plugged into the first transmission sleeve (420).

10. The mobility assist device based on amphibious all-terrain vehicle tires according to claim 9, characterized in that: The second transmission shaft (450) includes a sleeve (451) rotatably connected to the shaft (441), one end of the sleeve (451) is fixed with a second transmission connector (452) that is transmission-plugged with the second transmission sleeve (430), and the other end of the sleeve (451) is fixedly connected to the first buoyancy box (210).

Images