Amphibious device for integrated spiral propulsion in water and land

Abstract

The invention discloses an amphibious device integrally propelled by a screw in water and land. The amphibious device comprises a machine body and a screw propelling device, the spiral propelling device comprises a spiral cylinder main body, a driving device and a rotary opening and closing device; a first circular opening penetrates through the spiral cylinder body, first spiral blades are arranged on the outer wall of the spiral cylinder body, and second spiral blades are arranged on the inner wall of the spiral cylinder body; the driving devices at the two ends of the spiral cylinder body rotate simultaneously to drive the spiral cylinder body to rotate. During land movement, the rotary opening and closing device is in a closed state, and the solid medium generates shearing force on the first spiral blade, so that the spiral propelling device advances; when moving in water, the rotary opening and closing device is in an open state, and the first spiral blade and the second spiral blade simultaneously poke water flow backwards to obtain forward thrust, so that the spiral propelling device advances. Under the condition that the land performance is not influenced, the underwater movement is improved, and the movement efficiency is improved.

Description

Technical Field

[0001] The invention relates to equipment capable of amphibious movement in water and on land, and in particular to an amphibious device with integrated spiral propulsion in water and on land. Background Art

[0002] When traditional amphibious equipment such as amphibious tanks are operating on the water surface, they are large in size and have relatively fixed routes, lacking concealment, and are easily discovered by enemy radars, satellites, and reconnaissance equipment, making them prominent targets of attack. In addition, the speed and maneuverability of amphibious equipment sailing on the surface will be significantly affected when encountering adverse weather conditions. If amphibious equipment can approach the target area from the water with the help of the natural barrier of the water body, and only float from the water at the moment of landing to carry out a surprise attack, the chance of being discovered by enemy reconnaissance equipment will be reduced, greatly improving the survival rate. When sailing underwater, amphibious equipment is usually not affected by waves, and the focus of the main body design is to reduce viscous resistance and pressure resistance. The streamlined main body shape can minimize the resistance encountered during navigation and improve its gliding performance in the water.

[0003] The process of motion conversion from underwater to land is usually accompanied by the complexity and technical challenges of dual propulsion system design. The dynamic characteristics of the water and land environments are significantly different, making the motion modes in the two media difficult to be compatible. Structural designs suitable for land load-bearing and maneuvering often lead to a decrease in propulsion efficiency in water. Therefore, the design of amphibious systems that take into account efficient propulsion in water and on land at the same time faces many difficulties. Traditional amphibious propulsion systems mostly use a combination of wheeled vehicles and propellers, or a combination of tracked vehicles and propellers. However, the dual propulsion system not only increases the load of the equipment, but also limits its performance in water. In recent years, there has been an increasing number of studies on single-system amphibious propulsion methods that do not require system conversion, aiming to reduce system complexity and improve overall motion efficiency. This has become a key issue that needs to be urgently addressed in this field.

[0004] The spiral propulsion method shows excellent adaptability in semi-fluid environments such as swamps, silt, and mudflats. Compared with traditional wheeled or tracked vehicles, the spiral propulsion device is less dependent on the bearing capacity of the soil, and its propulsion is mainly achieved by the viscous shear and mass force of the medium. Spiral propulsion can play an effective role in both aquatic and terrestrial environments. On the water surface or in shallow water areas, the spiral barrel directly interacts with the water body through rotation to generate water propulsion force; while in terrestrial environments, the spiral propulsion contacts the ground and can achieve propulsion behavior similar to tracks. This cross-medium propulsion characteristic gives the spiral propulsion method a significant advantage in a variety of complex terrains.

[0005] However, existing screw propulsion methods also have certain limitations. Conventional screw propulsion has a relatively low speed, especially when running in water, and its propulsion efficiency is significantly lower than that of traditional propellers or water jet propulsion systems. Summary of the invention

[0006] Purpose of the invention: The purpose of the present invention is to provide an amphibious device with integrated spiral propulsion both in water and on land, which has efficient propulsion capability both in water and on land.

[0007] Technical solution: The present invention is an amphibious device with integrated spiral propulsion for both land and water, comprising a fuselage main body, a pair of spiral propulsion devices arranged in parallel below the fuselage main body; the spiral propulsion device comprises a spiral barrel main body, annular driving devices coaxially arranged at both ends of the spiral barrel main body, and a rotating opening and closing device coaxially arranged outside each driving device; a first circular opening is arranged axially through the inside of the spiral barrel main body, a first spiral blade is arranged along the spiral line on the outer wall of the spiral barrel main body, and a second spiral blade is arranged along the spiral line on the inner wall of the spiral barrel main body; the rotating opening and closing device is used to control the connection between the inside of the spiral barrel main body and the outside, and the two spirals are connected. The thread directions of the first spiral blade on the spiral propulsion device are opposite; the driving devices at both ends of the spiral barrel main body rotate simultaneously, driving the spiral barrel main body to rotate; when moving on land, the rotary opening and closing device is in a closed state, and the interior of the spiral barrel main body is not connected to the outside world. When the spiral barrel main body rotates, the solid medium generates a shear force on the first spiral blade, thereby advancing the spiral propulsion device; when moving in water, the rotary opening and closing device is in an open state, and the interior of the spiral barrel main body is connected to the outside world. When the spiral barrel main body rotates, the outer leaves of the spiral barrel and the second spiral blades simultaneously push the water flow backward to obtain a forward thrust, thereby advancing the spiral propulsion device.

[0008] Furthermore, the spiral barrel body, the first spiral blade and the second spiral blade are an integrated structure, the connection is stable, and the blades are not easy to fall off.

[0009] Furthermore, the driving device includes an annular mechanical support structure and an annular electromagnetic driving structure installed on the inner side of the mechanical support structure; wherein the electromagnetic driving structure is fixedly connected to the spiral drum body, and the electromagnetic driving structure drives the spiral drum body to rotate.

[0010] Furthermore, the electromagnetic drive structure includes a permanent magnet with an overall ring-shaped structure, a plurality of rotors are evenly distributed on the outer wall of the permanent magnet, and a plurality of stators are evenly distributed on the inner wall of the mechanical support structure; the electromagnetic drive structure can drive the spiral drum body to rotate.

[0011] Furthermore, flow guide covers are respectively arranged on both sides of the mechanical support structure, and the water flows into the interior of the spiral drum body under the guidance of the flow guide covers.

[0012] Furthermore, the rotating opening and closing device includes an outer shell disc, a rotating ring is concentrically arranged on the upper surface of the outer shell disc, and the rotating ring is rotatably connected to the outer shell disc; a second circular opening is opened in the center of the outer shell disc, and the second circular opening corresponds to the first circular opening; a circle of third blades are arranged on the outer circumference of the second circular opening, each third blade is rotatably connected to the upper surface of the outer shell disc through a pin shaft, and each third blade is connected to the rotating ring through a connecting rod; when the rotating ring rotates, all the third blades are driven to rotate synchronously, and the second circular opening is opened or closed; the external solid medium or water is controlled to enter the interior of the spiral barrel body by controlling the opening or closing of the rotating opening and closing device.

[0013] Furthermore, a plurality of arc grooves are provided on the rotating ring along its circumferential direction, a pin is provided in each arc groove, the other end of the pin is fixedly provided on the outer shell disc, and the rotating ring rotates relative to the outer shell disc with the arc groove as the movable range, thereby realizing the rotational movement of the rotating ring on the outer shell disc.

[0014] Furthermore, the contours of the two sides of the third blade are two arcs in the same direction, and holes are respectively opened at the ends of the two arcs in the same direction that are away from each other on the third blade, and pins are arranged in the two holes, one of which is fixedly mounted on the outer shell disc and is rotatably connected to the third blade, and the other pin is fixedly connected to one end of the connecting rod and is rotatably connected to the third blade. When all the third blades gather inward, they can roughly enclose a disc, which can block the second circular opening, and the external medium cannot enter the first circular opening from the second circular opening; when all the third blades are separated outward, the second circular opening is not blocked, and water can enter the first circular opening from the second circular opening.

[0015] Furthermore, a number of inwardly protruding pin mounting holes are evenly spaced on the inner wall of the rotating ring, the number of the pin mounting holes is the same as the number of blades, and the other end of the connecting rod is rotatably connected to the pin mounting hole through the pin, thereby realizing the rotatable connection between the connecting rod and the rotating ring.

[0016] Furthermore, a plurality of tail rudders are symmetrically arranged at the tail of the main body of the fuselage, which can provide emergency stop and rotation control for underwater operations during navigation.

[0017] Beneficial effects: Compared with the prior art, the significant technical effects of the present invention are as follows:

[0018] The present invention can effectively realize amphibious movement in water and on land, and effectively reduces its own weight by opening in the middle of the main structure of the spiral cylinder, and effectively improves the movement efficiency without changing the driving structure;

[0019] By adding a second spiral blade attached to the inner wall at the opening of the spiral barrel, the movement efficiency in water is greatly improved. The combination of the two is of great help in improving the movement efficiency.

[0020] The spiral drum adopts an integrated structural design as a whole, and a part of the driving structure is also connected to the spiral drum body, which reduces the structural complexity. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of an amphibious device with integrated spiral propulsion in water and on land disclosed in an embodiment of the present invention;

[0022] Figure 2 A top view of an amphibious device with integrated spiral propulsion in water and on land disclosed in an embodiment of the present invention;

[0023] Figure 3 It is a front view of the spiral propulsion device disclosed in an embodiment of the present invention;

[0024] Figure 4 It is a structural schematic diagram of a spiral propulsion device disclosed in an embodiment of the present invention;

[0025] Figure 5 This is a schematic diagram of the connection between the spiral drum body and the electromagnetic drive device disclosed in the embodiment of the present invention;

[0026] Figure 6 A longitudinal cross-sectional view of a spiral propulsion device disclosed in an embodiment of the present invention;

[0027] Figure 7 A schematic diagram of the structure of an electromagnetic drive device disclosed in an embodiment of the present invention;

[0028] Figure 8 A longitudinal cross-sectional view of an electromagnetic drive device disclosed in an embodiment of the present invention;

[0029] Fig. 9 It is a schematic diagram of the rotary opening and closing device disclosed in the embodiment of the present invention in a closed state;

[0030] Fig.10 It is a schematic diagram of the rotary opening and closing device disclosed in an embodiment of the present invention in an open state;

[0031] Fig.11 This is a schematic diagram of the land motion principle of the screw propulsion device disclosed in an embodiment of the present invention;

[0032] Fig.12 This is a schematic diagram of the land motion principle of the screw propulsion device disclosed in an embodiment of the present invention;

[0033] Fig.13 This is a schematic diagram of the land motion principle of the screw propulsion device disclosed in an embodiment of the present invention;

[0034] Fig.14 This is a schematic diagram of the underwater movement principle of the spiral propulsion device disclosed in an embodiment of the present invention. DETAILED DESCRIPTION

[0035] The technical solution of the present invention is described in detail below in conjunction with specific implementation methods and the accompanying drawings of the specification.

[0036] like Figures 1 to 9 As shown, the amphibious device with integrated spiral propulsion for both water and land of the present invention involves the following components: a fuselage body 1, a spiral propulsion device 2, a tail rudder 3, a spiral barrel body 4, a driving device 5, a rotating opening and closing device 6, a first spiral blade 7, a second spiral blade 8, a fairing 9, a mechanical support structure 10, an electromagnetic drive structure 11, a permanent magnet 12, a stator 13, a rotor 14, blades 15, a pin 16, a connecting rod 17, a rotating ring 18, an outer shell disc 19, a first circular opening 41, a propulsion device connecting rod 51, and a second circular opening 191.

[0037] like Figure 1 and Figure 2 As shown, the fuselage body 1 adopts a streamlined design, which effectively slows down the boundary layer separation when the water flows through, thereby minimizing the viscous pressure resistance. At the same time, this streamlined design makes the body contour transition smoothly, suppresses mechanical vibration and fluid noise during underwater navigation, significantly reduces the possibility of being detected by underwater detection equipment such as sonar, and improves underwater concealment. A pair of screw propulsion devices 2 are arranged in parallel below the fuselage body 1. A plurality of tail rudders 3 are symmetrically arranged at the tail of the fuselage body 1. In this embodiment, the number of tail rudders 3 is two.

[0038] There are rudders at the tail ends of both sides of the fuselage, and their main function is to provide emergency stop and rotation control for underwater operations during navigation. When moving underwater, the rudders on both sides are opened at the same time, and the control surface will rotate upward or downward, increasing the resistance of underwater operations and achieving a braking effect; and when the angles of the two sides are different, the resistance on both sides will be different, thereby generating a horizontal rotation torque, causing the main body to turn urgently. When the rudder on the left is opened and the one on the right is closed, the main body will turn to the left, and vice versa.

[0039] like Figure 3-6As shown, the spiral propulsion device 2 includes a spiral barrel body 4, a driving device 5, a rotating opening and closing device 6, a first spiral blade 7, and a second spiral blade 8. The spiral barrel body 4 is designed as a cylinder with a smooth surface, narrow at both ends and wide in the middle, and is an integrated design. The connecting part is a spline curve smoothly connected. Two annular driving devices 5 are coaxially arranged at both ends of the spiral barrel body 4. In this embodiment, the driving devices 5 are arranged at the narrower ends of the spiral barrel body 4, and a total of two are designed. A rotating opening and closing device 6 is coaxially arranged outside each driving device 5, and a total of two rotating opening and closing devices 6 are designed. The rotating opening and closing device 6 is used to control the communication between the inside of the spiral barrel body 4 and the outside world. The rotating opening and closing device 6 realizes the opening and closing of the internal space. When the equipment moves on land, the rotating opening and closing device 6 is closed; when the equipment moves in water, the rotating opening and closing device 6 is opened. A first circular opening 41 is arranged axially through the inside of the spiral barrel body 4, and the first circular opening 41 is used to arrange the second spiral blade 8. The first circular opening 41 is an opening that runs through from beginning to end and is arranged at the center position of the spiral barrel body 4. The first spiral blades 7 are arranged along the spiral line on the outer wall of the spiral barrel main body 4, and the second spiral blades 8 are arranged along the spiral line on the inner wall of the spiral barrel main body 4. The thread directions of the first spiral blades 7 on the two spiral propulsion devices 2 are opposite. The first spiral blades 7 are evenly distributed outside the spiral barrel main body 4 along the spiral line. The spiral line adopts a cylindrical spiral line, which can be regarded as a synthetic result of a space point vector performing uniform circular motion around a straight line and uniform linear motion around the straight line at the same time. The second spiral blades 8 are arranged on the wall surface of the opening in the middle of the spiral barrel main body 4, and are evenly distributed clockwise from beginning to end. The first spiral blades 7 and the second spiral blades 8 have the same orientation, and are both arranged clockwise or counterclockwise. In the present embodiment, the spiral barrel main body 4, the first spiral blades 7 and the second spiral blades 8 are an integrated structure.

[0040] Movement principle: The movement of the spiral barrel body 4 is driven by the interaction between itself and the medium. On land, the solid medium generates shear force on the external first spiral blade 7 to move the spiral barrel body 4. In water, the shear force is so small that it can be ignored. The first spiral blade 7 and the second spiral blade 8 simultaneously push the water flow backward to obtain forward thrust. Two spiral barrel bodies 4 with opposite threads are arranged in parallel, and multi-directional movement is achieved by controlling the direction and speed of the two spiral barrel bodies 4.

[0041] like Figure 7-8As shown, the drive device 5 includes a deflector 9, a mechanical support structure 10, and an electromagnetic drive structure 11. The mechanical support structure 10 and the electromagnetic drive structure 11 are annular structures as a whole, and the electromagnetic drive structure 11 is installed on the inner side of the mechanical support structure 10; wherein, the electromagnetic drive structure 11 is fixedly connected to the spiral barrel body 4, and the mechanical support structure 10 is fixed to the fuselage body 1 through the propulsion device connecting rod 51. The electromagnetic drive structure 11 drives the spiral barrel body 4 to rotate. The electromagnetic drive structure 11 is wrapped by the deflector 9. In this embodiment, the deflectors 9 on both sides of the mechanical support structure 10 are arranged around the outer contour of the mechanical support structure 10.

[0042] In this embodiment, the electromagnetic drive structure 11 adopts a three-phase permanent magnet brushless motor structure, including a permanent magnet 12, a stator 13, and a rotor 14. The permanent magnet 12 is annular in structure as a whole, and a plurality of rotors 14 are evenly distributed on the outer wall of the permanent magnet 12, and a plurality of stators 13 are evenly distributed on the inner wall of the mechanical support structure 10. The electromagnetic drive structure 11 adopts a fractional slot motor form, and the slot type uses parallel flat bottom slots. The motor circuit of the electromagnetic drive structure 11 adopts a star connection mode, and the electromagnetic drive structure is connected to the main body of the spiral drum, which is an integrated structure. The motor drive rotation drives the spiral drum to rotate as a whole.

[0043] like Figure 9-10 As shown, the rotary opening and closing device 6 includes a third blade 15, a pin 16, a connecting rod 17, a rotating ring 18, and an outer shell disc 19. A rotating ring 18 is concentrically arranged on the upper surface of the outer shell disc 19, and the rotating ring 18 is rotatably connected with the outer shell disc 19. In this embodiment, the rotating ring 18 and the outer shell disc 19 are rotatably connected in the following manner: a plurality of arc grooves are provided on the rotating ring 18 along its circumferential direction, a pin 16 is provided in each arc groove, and the other end of the pin 16 is fixedly arranged on the outer shell disc 19, and the rotating ring 18 rotates relative to the outer shell disc 19 with the arc groove as the range of motion.

[0044] A second circular opening 191 is provided in the center of the outer shell disc 19, and the second circular opening 191 corresponds to the first circular opening 41. A circle of third blades 15 are arranged around the outer circumference of the second circular opening 191, and each third blade 15 is rotatably connected to the upper surface of the outer shell disc 19 through a pin shaft 16, and each third blade 15 is also connected to the rotating ring 18 through a connecting rod 17. When the rotating ring 18 rotates, all the third blades 15 are driven to rotate synchronously, and the second circular opening 191 is opened or closed.

[0045] The contours of the two sides of the third blade 15 are two arcs in the same direction. Holes are respectively provided at the ends of the two arcs in the same direction that are away from each other. Pins 16 are arranged in both holes. One of the pins 16 is fixedly mounted on the outer shell disc 19 and is rotatably connected to the third blade 15. The other pin is fixedly connected to one end of the connecting rod 17 and is rotatably connected to the third blade 15. A number of pin mounting holes protruding inward are arranged at equal intervals on the inner wall of the rotating ring 18. The number of the pin mounting holes is the same as that of the third blade 15. The other end of the connecting rod 17 is rotatably connected to the pin mounting holes through the pins 16. In this embodiment, a total of five third blades 15 are designed, and both sides are designed to be arc-shaped.

[0046] In this embodiment, ten pins 16 are distributed on the outer shell disc 19, which is an integrated design. The rotating ring 18 is arranged inside the outer shell disc 19, and the arc groove of the rotating ring 18 is fixed by the pin 16, and can rotate within a certain range. When the rotating ring 18 rotates within a certain range, it can drive all the third blades 15 from a closed state to an open state, and the second circular opening 191 on the outer shell disc 19 can be exposed, so as to achieve the purpose of water flow. When the propeller moves on land, all the third blades 15 are closed to prevent mud and sand from entering; when moving in water, all the third blades 15 are opened, water flows through, and the first spiral blade 7 and the second spiral blade 8 inside the spiral barrel body 4 simultaneously drain water backwards, so as to achieve the purpose of improving the propulsion efficiency in water.

[0047] The driving devices 5 at both ends of the spiral barrel body 4 rotate simultaneously, driving the spiral barrel body 4 to rotate; when moving on land, the rotary opening and closing device 6 is in a closed state, and the interior of the spiral barrel body 4 is not connected to the outside world. When the spiral barrel body 4 rotates, the solid medium generates a shear force on the first spiral blade 7 to advance the spiral propulsion device 2. When moving in water, the rotary opening and closing device 6 is in an open state, and the interior of the spiral barrel body 4 is connected to the outside world. When the spiral barrel body 4 rotates, the first spiral blade 7 and the second spiral blade 8 simultaneously push the water flow backward to obtain a forward thrust, thereby advancing the spiral propulsion device 2.

[0048] like Fig.11 As shown in the figure, when moving on land, the left spiral barrel rotates counterclockwise, and the right spiral barrel rotates clockwise, keeping the two spiral barrels at the same speed. The lateral forces provided by the two barrels offset each other, generating forward thrust, thus forming forward movement. Similarly, reverse rotation is backward movement. Fig.11 Figure (a) shows forward movement. Fig.11 Figure (b) shows retreat.

[0049] like Fig.12As shown, on land, the principle of differential steering can be used. The left spiral drum rotates counterclockwise, and the right spiral drum stops or rotates clockwise, so that the left side rotates faster than the right side, and a right turn can be completed. Similarly, the opposite is true for left rotation. Fig.12 Figure (a) indicates a right turn. Fig.11 Figure (b) shows a left turn.

[0050] like Fig.13 As shown in the figure, the characteristics of the main body of the spiral drum enable the platform to move sideways. If the two spiral drums rotate counterclockwise at the same time and keep the same speed, it can move sideways to the left. Similarly, reverse rotation means sideways movement to the right. Lateral movement can only be achieved on the ground, not on the water. Fig.13 Figure (a) shows left shift. Fig.13 Figure (b) shows rightward shift.

[0051] like Fig.14 As shown, when transitioning from land to water, the outer shell disc 19 remains stationary, the rotating ring 18 rotates, and drives the third blade 15 through the connecting rod 17. After rotating to a certain angle, the opening is fully opened, and the water flows through the second spiral blade 8 in the spiral barrel body 4, generating backward thrust. Fig.14 Figure (a) indicates a right turn. Fig.14 Figure (b) shows a left turn.

[0052] At the same time, when moving in water, the main body of the spiral drum moves in the same way as the forward and backward movement on land. The principle of differential steering can also be used to achieve steering in water. In addition to differential steering, the two main bodies of the spiral drum can be rotated clockwise or counterclockwise at the same time to achieve in-situ steering.

[0053] The present invention optimizes the design of the spiral propulsion device, significantly improving its underwater propulsion efficiency without affecting its land performance. The spiral propulsion device has both water and land maneuverability, and exhibits unique maneuverability advantages under specific environments. It can achieve rapid water-land conversion, thereby significantly improving the convenience of operation and has broad application prospects. Further improving the underwater performance of amphibious spiral propulsion devices is still of great significance. With the continuous development and innovation of technology, amphibious spiral propulsion devices will demonstrate their unique value and potential in more fields.

[0054] The device can travel on land and in water without the need for conversion of the motion system, thereby realizing integrated and efficient amphibious propulsion. This integrated spiral-propelled amphibious device on land and in water is of great help in improving motion efficiency. It can maintain its unique advantages when moving on land and can show excellent driving ability in complex and changeable environments, such as semi-fluid roads such as swamps, snow, mud and water network areas. This ability enables the body to maintain stable driving performance under various harsh conditions with less wear. The present invention improves its underwater movement without affecting its land performance, improves movement efficiency, enriches the research methods for the development of offshore areas, and also provides a new and more effective option.

Claims

1. An amphibious device with integrated screw propulsion in water and on land, characterized in that: It comprises a fuselage body (1), and a pair of screw propulsion devices (2) are arranged in parallel below the fuselage body (1); The spiral propulsion device (2) comprises a spiral barrel body (4), an annular driving device (5) coaxially arranged at both ends of the spiral barrel body (4), and a rotating opening and closing device (6) coaxially arranged outside each driving device (5); A first circular opening (41) is provided in the spiral barrel body (4) along the axial direction, a first spiral blade (7) is arranged along the spiral line on the outer wall of the spiral barrel body (4), and a second spiral blade (8) is arranged along the spiral line on the inner wall of the spiral barrel body (4); The rotating opening and closing device (6) is used to control the communication between the inside of the spiral barrel body (4) and the outside, and the thread directions of the first spiral blades (7) on the two spiral propulsion devices (2) are opposite; The driving devices (5) at both ends of the spiral barrel body (4) rotate simultaneously, driving the spiral barrel body (4) to rotate; when moving on land, the rotary opening and closing device (6) is in a closed state, and the interior of the spiral barrel body (4) is not connected to the outside world. When the spiral barrel body (4) rotates, the solid medium generates a shear force on the first spiral blade (7), thereby moving the spiral propulsion device (2) forward; When moving in water, the rotary opening and closing device (6) is in an open state, the interior of the spiral barrel body (4) is connected to the outside, and when the spiral barrel body (4) rotates, the first spiral blade (7) and the second spiral blade (8) simultaneously push the water flow backward to obtain forward thrust, thereby moving the spiral propulsion device (2) forward.

2. The amphibious device with integrated screw propulsion in water and on land according to claim 1, characterized in that: The spiral barrel body (4), the first spiral blade (7) and the second spiral blade (8) are an integrated structure.

3. The amphibious device with integrated screw propulsion in water and on land according to claim 1, characterized in that: The driving device (5) comprises an annular mechanical support structure (10) and an annular electromagnetic driving structure (11) installed on the inner side of the mechanical support structure (10); wherein the electromagnetic driving structure (11) is fixedly connected to the spiral drum body (4), and the electromagnetic driving structure (11) drives the spiral drum body (4) to rotate.

4. The amphibious device with integrated screw propulsion for both water and land according to claim 3, characterized in that: The electromagnetic drive structure (11) comprises a permanent magnet (12) having an overall ring-shaped structure, a plurality of rotors (14) being evenly distributed on the outer wall of the permanent magnet (12), and a plurality of stators (13) being evenly distributed on the inner wall of the mechanical support structure (10).

5. The amphibious device with integrated screw propulsion in water and on land according to claim 3, characterized in that: Air guide covers (9) are respectively arranged on both sides of the mechanical support structure (10).

6. The amphibious device with integrated screw propulsion in water and on land according to claim 1, characterized in that: The rotating opening and closing device (6) comprises an outer shell disc (19), a rotating ring (18) is coaxially arranged on the upper surface of the outer shell disc (19), and the rotating ring (18) is rotatably connected to the outer shell disc (19); A second circular opening (191) is provided in the center of the outer shell disc (19), and the second circular opening (191) corresponds to the first circular opening (41); A circle of third blades (15) is arranged on the outer periphery of the second circular opening (191), each third blade (15) is rotatably connected to the upper surface of the outer shell disc (19) via a pin, and each third blade (15) is connected to the rotating ring (18) via a connecting rod (17); When the rotating ring (18) rotates, it drives all the third blades (15) to rotate synchronously, and the second circular opening (191) is opened or closed.

7. The amphibious device with integrated screw propulsion in water and on land according to claim 6, characterized in that: The rotating ring (18) is provided with a plurality of arc grooves along its circumferential direction, a pin is arranged in each arc groove, and the other end of the pin is fixedly arranged on the outer shell disc (19), and the rotating ring (18) rotates relative to the outer shell disc (19) with the arc groove as the movable range.

8. The amphibious device with integrated screw propulsion in water and on land according to claim 6, characterized in that: The contours of the two sides of the third blade (15) are two circular arcs in the same direction. Holes are respectively provided at the ends of the two circular arcs in the same direction that are away from each other. Pins are arranged in the two holes. One of the pins is fixedly mounted on the outer shell disc (19) and is rotatably connected to the third blade (15). The other pin is fixedly connected to one end of the connecting rod (17) and is rotatably connected to the third blade (15).

9. The amphibious device with integrated screw propulsion in water and on land according to claim 6, characterized in that: The inner wall of the rotating ring (18) is evenly spaced to arrange a plurality of inwardly protruding pin mounting holes, the number of which is the same as the number of the third blades (15), and the other end of the connecting rod (17) is rotatably connected to the pin mounting holes via the pins.

10. The integrated underwater and on-land screw-propelled amphibious device according to claim 1, characterized in that: A plurality of groups of tail rudders (3) are symmetrically arranged at the tail of the fuselage body (1).

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