Cross-medium unmanned aerial vehicle

Abstract

The cross-medium unmanned aerial vehicle comprises a vehicle body, a first rotor wing assembly, a second rotor wing assembly, a steering engine and a multi-connecting-rod transmission assembly, and the first rotor wing assembly and the second rotor wing assembly are arranged on the two sides of the vehicle body in parallel; the first rotor wing assembly and the second rotor wing assembly are oppositely arranged, and the rotating direction of the first rotor wing assembly is opposite to that of the second rotor wing assembly; the steering engine is arranged on the aircraft body and located at the midpoint position between the first rotor wing assembly and the second rotor wing assembly; the output shaft of the steering engine is sleeved with the multi-connecting-rod transmission assembly. One end of the multi-link transmission assembly is connected with the first rotor assembly, and the other end is connected with the second rotor assembly; the multi-connecting-rod transmission assembly is used for driving the first rotor wing assembly and the second rotor wing assembly to reversely rotate at the same speed. The first rotor wing assembly and the second rotor wing assembly are driven by the steering engine to synchronously rotate, the thrust direction is changed, the unmanned aerial vehicle can flexibly move in the air, the ground, the water surface and the water body, and cross-medium movement is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of unmanned aerial vehicles (UAVs), and in particular to a cross-media UAV. Background Art

[0002] Currently, with the rapid development of the low-altitude economy, technological advancements in the drone sector are swift. Traditional drones have excellent airspace maintenance capabilities and are suitable for reconnaissance, filming, entertainment, transportation, and other applications. Due to their high flexibility, drones are finding a wide range of applications, and the performance requirements are also increasing. For example, reconnaissance drones are limited to low-altitude flight in the air. Due to the complex and diverse natural environment, being exposed in the air is not suitable for covert reconnaissance or standby operations. There is a growing demand for drones that can move freely in the air, on the ground, and even in water. Therefore, cross-medium drones, capable of adapting to both water and air, have emerged.

[0003] However, due to the different thrust directions in the flight posture and the road moving posture, existing cross-medium UAVs generally need to be equipped with multiple thrusters, with complex body structures and heavy loads, making them inconvenient to use and high in manufacturing costs.

[0004] Therefore, the existing technology still needs to be improved and developed. Summary of the Invention

[0005] In view of the above-mentioned deficiencies in the prior art, the purpose of the present invention is to provide a cross-medium UAV, aiming to solve the problem that the propulsion structure of the existing cross-medium UAV is complex and not conducive to adapting to complex environments.

[0006] The technical solutions of the present invention are as follows:

[0007] A cross-media drone, comprising:

[0008] body;

[0009] A first rotor assembly and a second rotor assembly are arranged in parallel on both sides of the fuselage; the first rotor assembly is arranged in opposite directions to the second rotor assembly, and the rotation direction of the first rotor assembly is opposite to the rotation direction of the second rotor assembly;

[0010] a servo, provided on the body, at a midpoint between the first rotor assembly and the second rotor assembly;

[0011] A multi-link transmission assembly is sleeved on the output shaft of the servo; one end of the multi-link transmission assembly is connected to the first rotor assembly, and the other end is connected to the second rotor assembly; the multi-link transmission assembly is used to drive the first rotor assembly and the second rotor assembly to rotate in opposite directions at the same speed.

[0012] The cross-media drone, wherein a first connection hole and a second connection hole are respectively provided on both sides of the body; the first connection hole and the second connection hole are staggered and arranged in parallel up and down;

[0013] The first rotor assembly includes a first rotating shaft and two first propellers, wherein the first rotating shaft is inserted into the first connecting hole; the two first propellers are respectively arranged at both ends of the first rotating shaft;

[0014] The second rotor assembly includes a second rotating shaft and two second propellers, the second rotating shaft is inserted into the second connecting hole; the two second propellers are respectively arranged at both ends of the first rotating shaft;

[0015] Wherein, one end of the multi-link transmission assembly is sleeved with the first rotating shaft, and the other end is sleeved with the second rotating shaft.

[0016] The cross-media drone, wherein the first propeller includes a first motor and a first blade, and the first blade is mounted on an output shaft of the first motor;

[0017] The second propeller includes a second motor and a second blade, and the second blade is mounted on an output shaft of the second motor;

[0018] The first motor and the second motor are of the same model; the first blade and the second blade have the same diameter and opposite torsional directions.

[0019] The cross-medium UAV, wherein the servo, the first rotating shaft, and the second rotating shaft are arranged collinearly; and the multi-link transmission assembly includes:

[0020] A rotating rod, wherein a connecting hole is provided in the middle of the rotating rod, and the connecting hole is used to plug in the output shaft of the steering gear; a first connector and a second connector are provided at both ends of the rotating rod respectively;

[0021] a first push rod and a first fixing rod, wherein one end of the first push rod is hinged to the first connector and the other end is hinged to the first fixing rod; the first fixing rod is sleeved to the first rotating shaft;

[0022] A second push rod and a second fixing rod, one end of the second push rod is hinged to the second connector, and the other end is hinged to the second fixing rod; the second fixing rod is sleeved to the second rotating shaft.

[0023] The cross-medium drone, wherein the first push rod includes a first straight portion and a first bent portion, one end of the first straight portion is hinged to the first connector, and the other end is connected to the first bent portion; an end of the first bent portion facing away from the first straight portion is hinged to the first fixing rod, and the first bent portion is bent in a direction away from the first rotation axis;

[0024] The second push rod includes a second straight portion and a second bent portion, one end of the second straight portion is hinged to the second connecting head, and the other end is connected to the second bent portion; one end of the second bent portion facing away from the second straight portion is hinged to the second fixed rod, and the second bent portion is bent in a direction away from the second rotating axis.

[0025] The cross-media drone, wherein the cross-media drone includes a propeller protection assembly and a moving assembly, the propeller protection assembly is connected to the body, and the propeller protection assembly wraps the body, and the bottom surface of the propeller protection assembly is located below the bottom surface of the body; the moving assembly is arranged at the bottom of the propeller protection assembly, for supporting the propeller protection assembly and the body.

[0026] The cross-media UAV, wherein the propeller protection component includes:

[0027] A first extension arm and a second extension arm are arranged in parallel on both sides of the body;

[0028] a third extension arm, provided on the body; an extension direction of the third extension arm is perpendicular to an extension direction of the first extension arm and an extension direction of the second extension arm;

[0029] a cage-type protective cover connected to the first extension arm, the second extension arm, and the third extension arm; the cage-type protective cover is bowl-shaped and is inverted outside the body, the first rotor assembly, and the second rotor assembly;

[0030] The moving component is arranged on the cage-type protective cover.

[0031] The cross-medium drone, wherein the cage-type protective cover comprises a plurality of annular plates and a plurality of arcuate plates arranged alternately, wherein the plurality of arcuate plates are arranged in an annular shape and spaced apart around the body; the annular plates are connected to the arcuate plates, and surround the body, the first rotor assembly, and the second rotor assembly;

[0032] Wherein, a plurality of the annular plates are arranged in parallel, and the first extension arm, the second extension arm and the third extension arm are all connected to the annular plates.

[0033] The cross-media drone, wherein the moving component includes a plurality of rollers, the rollers are connected to the arc-shaped plate; and the rolling direction of the rollers is tangent to the circumferential direction of the annular plate.

[0034] The cross-media drone, wherein the propeller protection assembly includes a float, and the float is connected to the annular plate; and at least two floats are provided, and at least two floats are symmetrically arranged on both sides of the body.

[0035] Compared with the prior art, the embodiments of the present invention have the following advantages:

[0036] The cross-medium UAV disclosed in the present invention changes the thrust direction by simultaneously rotating the first rotor assembly and the second rotor assembly, and can quickly switch between lifting mode and lateral movement mode, thereby adapting to complex working environments. It does not require the setting of propellers in multiple directions. The product structure is simple, which is conducive to reducing the production cost of the UAV, increasing its flexibility of use, and can cope with a variety of complex scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0038] Figure 1 This is a schematic structural diagram of the lifting state of the cross-medium UAV in the present invention;

[0039] Figure 2 Schematic diagram of the structure of the mobile state of the cross-medium UAV in the present invention;

[0040] Figure 3 A cross-sectional view of a portion of the structure longitudinally cut along the central axis of the cross-medium UAV of the present invention;

[0041] Figure 4 Schematic diagram of the structure of the cage-type protective cover and the moving assembly in the present invention;

[0042] Figure 5 Schematic diagram of the structure of a cross-media drone in another embodiment of the present invention.

[0043] Among them, 10, body; 11, first connecting hole; 12, second connecting hole; 20, first rotor assembly; 21, first rotating shaft; 22, first propeller; 221, first motor; 222, first blade; 30, second rotor assembly; 31, second rotating shaft; 32, second propeller; 321, second motor; 322, second blade; 40, steering gear; 50, multi-link transmission assembly; 51, rotating rod; 52, first push rod; 521, First straight portion; 522, first bent portion; 53, first fixed rod; 54, second push rod; 541, second straight portion; 542, second bent portion; 55, second fixed rod; 60, paddle guard assembly; 61, first extension arm; 62, second extension arm; 63, third extension arm; 64, cage protection cover; 641, annular plate; 642, arc plate; 6421, connecting block; 6422, bayonet; 65, float; 70, moving assembly. DETAILED DESCRIPTION

[0044] In order to enable those skilled in the art to better understand the solutions of the present invention, the following will provide a clear and complete description of 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 shall fall within the scope of protection of the present invention.

[0045] Due to manufacturing techniques and / or tolerances, variations in the shapes shown in the drawings may occur. Therefore, the examples described herein are not limited to the specific shapes shown in the drawings but include changes in shapes that occur during manufacturing.

[0046] Although terms such as "first," "second," and "third" may be used herein to describe various members, components, regions, layers, or portions, these members, components, regions, layers, or portions are not limited by these terms. Rather, these terms are used only to distinguish one member, component, region, layer, or portion from another member, component, region, layer, or portion. Thus, a first member, component, region, layer, or portion in the examples described herein may also be referred to as a second member, component, region, layer, or portion without departing from the teachings of the examples.

[0047] For ease of description, spatial relational terms such as "above," "upper," "below," and "lower" may be used herein to describe the relationship of one element to another element as shown in the accompanying drawings. Such spatial relational terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the accompanying drawings. For example, if the device in the accompanying drawings is turned over, an element described as being "above" or "upper" relative to another element would subsequently be located "below" or "lower" relative to the other element. Thus, the term "above" encompasses both the orientations of "above" and "below," depending on the spatial orientation of the device. The device may also be positioned in other ways, and the spatial relational terms used herein will be interpreted accordingly.

[0048] The terms used herein are intended only to describe various examples and are not intended to limit the present disclosure. Unless the context clearly indicates otherwise, the singular is intended to include the plural. The terms "comprise," "include," and "have" list the presence of stated features, quantities, operations, components, elements, and / or combinations thereof, but do not preclude the presence or addition of one or more other features, quantities, operations, components, elements, and / or combinations thereof.

[0049] See Figure 1 、 Figure 2 and Figure 3 In one embodiment of the present invention, a cross-medium drone is disclosed, which includes a body 10, a first rotor assembly 20, a second rotor assembly 30, a servo 40 and a multi-link transmission assembly 50, wherein the first rotor assembly 20 and the second rotor assembly 30 are arranged in parallel on both sides of the body 10; the first rotor assembly 20 and the second rotor assembly 30 are arranged in opposite directions, and the rotation direction of the first rotor assembly 20 is opposite to that of the second rotor assembly 30; the servo 40 is arranged on the body 10, at the midpoint between the first rotor assembly 20 and the second rotor assembly 30; the multi-link transmission assembly 50 is sleeved on the output shaft of the servo 40; one end of the multi-link transmission assembly 50 is connected to the first rotor assembly 20, and the other end is connected to the second rotor assembly 30; the multi-link transmission assembly 50 is used to drive the first rotor assembly 20 and the second rotor assembly 30 to rotate in opposite directions at the same speed.

[0050] The cross-medium drone disclosed in this embodiment uses a body 10 as a carrying platform, and a first rotor assembly 20 and a second rotor assembly 30 are arranged on both sides of the body 10 to provide lift or thrust to adapt to movement in various environments.

[0051] Specifically, when flight is desired, the first rotor assembly 20 and the second rotor assembly 30 are positioned opposite each other, with their rotational directions being opposite. For example, when the first rotor assembly 20 is positioned upward and generating downward thrust, the second rotor assembly 30 is positioned downward, also generating downward thrust. This allows both sides of the aircraft 10 to simultaneously generate lift, maintaining a stable flight posture.

[0052] When the aircraft needs to be landed on the ground, on the water, or in a body of water, the servo 40 is activated. Because the servo 40 is located between the first rotor assembly 20 and the second rotor assembly 30, the thrust transmitted to each side is opposite. This means that the multi-link transmission assembly 50 applies thrust in opposite directions to the first and second rotor assemblies 20, 30, causing them to rotate simultaneously and in opposite directions. For example, if the first rotor assembly 20 rotates 90°, from an upward orientation to facing the rear of the aircraft 10, the thrust generated is directed backward. Simultaneously, the second rotor assembly 30 also rotates 90°, from a downward orientation to facing the front of the aircraft 10, also generating thrust backward. Therefore, the first and second rotor assemblies 20, 30 simultaneously propel the aircraft 10 forward.

[0053] For example, when working in a complex environment such as a sewage pipe, the cross-media drone disclosed in this embodiment can fly above the water body, or land on the water surface, remain floating, move along the direction of the water flow, or be pushed by the first rotor assembly 20 and the second rotor assembly 30, so that it can collect samples, salvage pollutants, etc. in the sewage pipe.

[0054] It can be seen that the cross-medium drone disclosed in this embodiment changes the thrust direction by simultaneously rotating the first rotor assembly 20 and the second rotor assembly 30, and can quickly switch between the lifting mode and the lateral movement mode, thereby adapting to complex working environments. There is no need to set up propellers in multiple directions, which simplifies the structure of the drone, helps reduce the production cost of the drone, increases its flexibility of use, and can cope with a variety of complex scenarios.

[0055] It should be noted that this embodiment only exemplifies the situation where the first rotor assembly 20 is facing upward and the second rotor assembly 30 is facing downward. In actual manufacturing and use, the settings can also be reversed to achieve the technical effects disclosed in this application. This solution is an equivalent replacement for the concept of the present invention and should also be within the scope of protection of this application.

[0056] Specifically, the first rotor assembly 20 and the second rotor assembly 30 provided in this embodiment can be composed of motors and propellers of the same size and power. The number and torsion angle of the blades are equal, but the torsion direction is opposite, so as to achieve the effect of the lift or thrust on both sides of the body 10 tending to be consistent, so that the balance performance of the drone is better and the rollover is reduced.

[0057] like Figure 2 and Figure 3 As shown, as another embodiment of the present application, it is disclosed that the two sides of the body 10 are respectively provided with a first connecting hole 11 and a second connecting hole 12; the first connecting hole 11 and the second connecting hole 12 are staggered and arranged in parallel up and down; the first rotor assembly 20 includes a first rotating shaft 21 and two first propellers 22, and the first rotating shaft 21 is inserted into the first connecting hole 11; the two first propellers 22 are respectively arranged at both ends of the first rotating shaft 21; the second rotor assembly 30 includes a second rotating shaft 31 and two second propellers 32, and the second rotating shaft 31 is inserted into the second connecting hole 12; the two second propellers 32 are respectively arranged at both ends of the first rotating shaft 21; one end of the multi-link transmission assembly 50 is sleeved with the first rotating shaft 21, and the other end is sleeved with the second rotating shaft 31.

[0058] In this embodiment, the first connecting holes 11 and the second connecting holes 12 are staggered up and down, which is conducive to staggering the first rotor assembly 20 and the second rotor assembly 30 to avoid airflow interference when working at the same time; in addition, when the first rotor assembly 20 and the second rotor assembly 30 rotate in opposite directions at the same time, contact can also be avoided and collision is reduced; in short, the structural layout of the drone is more reasonable, so that the thrust direction can be flexibly adjusted and the usage mode can be changed.

[0059] Specifically, the first rotating shaft 21 disclosed in this embodiment can be rotatably inserted into the first connecting hole 11, and the second rotating shaft 31 can be rotatably inserted into the second connecting hole 12. They can only rotate in the circumferential direction and remain fixed in the radial and axial directions. Therefore, the first propeller 22 and the second propeller 32 can be maintained in a fixed position and rotate flexibly.

[0060] The two first propellers 22 and the two second propellers 32 disclosed in this embodiment form a four-rotor structure, which is arranged on the periphery of the body 10 and arranged in a rectangular shape, so that the body 10 at the center position can be pushed smoothly, thereby improving the stability of the drone during movement.

[0061] like Figure 2 As shown, as another embodiment of the present application, it is disclosed that the first propeller 22 includes a first motor 221 and a first blade 222, and the first blade 222 is installed on the output shaft of the first motor 221; the second propeller 32 includes a second motor 321 and a second blade 322, and the second blade 322 is installed on the output shaft of the second motor 321; the first motor 221 and the second motor 321 are of the same model; the first blade 222 and the second blade 322 have the same diameter and have opposite torsion directions.

[0062] The first rotating shaft 21 and the second rotating shaft 31 disclosed in this embodiment are equal in length, and are both connected to the multi-link transmission assembly 50 at the midpoint. The two first propellers 22 and the two second propellers 32 adopt the same structure, the weight of the first motor 221 and the second motor 321 are equal, and the weight of the first blade 222 and the second blade 322 are also equal. Therefore, the lever arm lengths on both sides of the body 10 are equal, the load weight is the same, and the center of gravity of the entire drone is maintained at the center of the body 10, making it easier for the drone to maintain a stable posture and convenient control whether it is in flight or in horizontal movement.

[0063] like Figure 3 As shown, as another embodiment of the present application, it is disclosed that the servo 40, the first rotating shaft 21 and the second rotating shaft 31 are arranged in a colinear manner; the multi-link transmission assembly 50 includes a rotating rod 51, a first push rod 52, a first fixed rod 53, a second push rod 54 and a second fixed rod 55, and a connecting hole is provided in the middle of the rotating rod 51, and the connecting hole is used to plug in the output shaft of the servo 40; the two ends of the rotating rod 51 are respectively provided with a first connecting head and a second connecting head; one end of the first push rod 52 is hinged to the first connecting head, and the other end is hinged to the first fixed rod 53; the first fixed rod 53 is sleeved on the first rotating shaft 21; one end of the second push rod 54 is hinged to the second connecting head, and the other end is hinged to the second fixed rod 55; the second fixed rod 55 is sleeved on the second rotating shaft 31.

[0064] The rotating rod 51, first push rod 52, and first fixed rod 53 disclosed in this embodiment form a four-bar linkage. Furthermore, the servo 40 is colinearly arranged with the first rotating shaft 21 and the second rotating shaft 31. Therefore, when torque is generated at the servo 40, the rotating rod 51 transmits force to the first push rod 52 and the first fixed rod 53, causing the first fixed rod 53 to rotate in the same direction as the servo 40, thereby driving the first rotating shaft 21 to rotate. Similarly, the rotating rod 51, second push rod 54, and second fixed rod 55 form a four-bar linkage on the other side of the servo 40 to drive the rotation of the second rotating shaft 31. Because the first rotating shaft 21 and the second rotating shaft 31 are symmetrically arranged on either side of the servo 40, they are pushed simultaneously, but in opposite directions, thereby achieving the effect of synchronously rotating the first propeller 22 and the second propeller 32 in opposite directions.

[0065] It can be seen that in this embodiment, a servo 40 drives the multi-link transmission assembly 50, which drives the first rotor assembly 20 and the second rotor assembly 30 to rotate simultaneously, and transmits thrust in a mechanical transmission manner, with high transmission efficiency and high precision, and a simple structure and small space occupation, which is conducive to improving the flexibility and precision of the use of the drone.

[0066] For example Figure 3As shown, as another embodiment of the present application, the first push rod 52 is disclosed to include a first straight portion 521 and a first bent portion 522, one end of the first straight portion 521 is hinged to the first connecting head, and the other end is connected to the first bent portion 522; the end of the first bent portion 522 that faces away from the first straight portion 521 is hinged to the first fixing rod 53, and the first bent portion 522 is bent in a direction away from the first rotating shaft 21.

[0067] In this embodiment, the first bent portion 522 is provided to avoid the first rotating shaft 21, thereby preventing the first push rod 52 from colliding with the first rotating shaft 21 during movement and preventing the four-bar linkage from getting stuck. In other words, the provision of the first bent portion 522 increases the flexibility of the four-bar linkage, allowing the first rotating shaft 21 to rotate at a greater angle, which is more conducive to adjusting the propulsion direction of the first propeller 22 over a large angle.

[0068] Specifically, in this embodiment, the second push rod 54 includes a second straight portion 541 and a second bent portion 542, one end of the second straight portion 541 is hinged to the second connecting head, and the other end is connected to the second bent portion 542; the end of the second bent portion 542 that faces away from the second straight portion 541 is hinged to the second fixed rod 55, and the second bent portion 542 is bent in a direction away from the second rotating shaft 31.

[0069] In this embodiment, the second push rod 54 has the same shape as the first push rod 52 . By providing the second bent portion 542 to avoid the second rotating shaft 31 , the adjustment range of the second propeller 32 can be increased.

[0070] Specifically, the first straight portion 521 and the first bent portion 522 disclosed in this embodiment are integrally formed, and the second straight portion 541 and the second bent portion 542 are integrally formed. This provides a strong and easily assembled overall structure for the first push rod 52 and the second push rod 54. Furthermore, both the first straight portion 521 and the second straight portion 541 can be hollowed out to further reduce the weight of the drone, thereby lowering the payload and enhancing the drone's operational flexibility.

[0071] like Figure 1 、 Figure 2 and Figure 4 As shown, as another embodiment of the present application, the cross-media UAV is disclosed to include a propeller protection assembly 60 and a mobile assembly 70, wherein the propeller protection assembly 60 is connected to the body 10, and the propeller protection assembly 60 wraps the body 10, and the bottom surface of the propeller protection assembly 60 is located below the bottom surface of the body 10; the mobile assembly 70 is arranged at the bottom of the propeller protection assembly 60, for supporting the propeller protection assembly 60 and the body 10.

[0072] The propeller guard assembly 60 disclosed in this embodiment can protect the body 10, the first rotor assembly 20, and the second rotor assembly 30, reducing direct collisions during use. Furthermore, the propeller guard assembly 60 is connected to the body 10 and can be considered a "shell" extending outward from the body 10. Therefore, the mobile assembly 70 is connected to the propeller guard assembly 60 and can serve as a carrier for the drone. The mobile assembly 70 can be configured as a tracked or wheeled structure, which can reduce the contact area and movement resistance of the drone when it lands on the ground or water, allowing for smoother lateral movement.

[0073] Similarly, the drone disclosed in this embodiment can also move laterally in water. The provision of the moving component 70 is also beneficial for the drone to move underwater and reduce movement resistance.

[0074] like Figure 2 and Figure 3 As shown, as another embodiment of the present application, the paddle protection assembly 60 is disclosed to include a first extension arm 61, a second extension arm 62, a third extension arm 63 and a cage protection cover 64, the first extension arm 61 and the second extension arm 62 are arranged in parallel on both sides of the body 10; the third extension arm 63 is arranged on the body 10; the extension direction of the third extension arm 63 is perpendicular to the extension direction of the first extension arm 61 and the extension direction of the second extension arm 62.

[0075] In this embodiment, the first extension arm 61, the second extension arm 62 and the third extension arm 63 serve as supporting structures and connecting structures, extending laterally from the body 10. They can be arranged in the same plane or staggered to form a fulcrum on the side of the body 10 to facilitate the connection of the cage protective cover 64.

[0076] Specifically, the first extension arm 61 and the second extension arm 62 are arranged in the same plane and extend from both sides of the body 10; the third extension arm 63 is set on the top surface or the bottom surface of the body 10, and is perpendicular to the first extension arm 61 and the second extension arm 62, forming a cross-shaped support structure as a whole. The cage-type protective cover 64 is connected to the end points of the cross-shaped support structure, has high stability, high structural strength, is not easy to deform, and has excellent protection effect.

[0077] Specifically, the cage protective cover 64 in this embodiment is connected to the first extension arm 61, the second extension arm 62 and the third extension arm 63; the cage protective cover 64 is bowl-shaped and is inverted outside the body 10, the first rotor assembly 20 and the second rotor assembly 30; the moving assembly 70 is arranged on the cage protective cover 64.

[0078] In this embodiment, the cage-like protective cover 64 completely encloses the drone body 10, the first rotor assembly 20, and the second rotor assembly 30, providing all-around protection and further enhancing the safety of the drone. Furthermore, the protective frame structure formed by the first, second, and third extension arms 61, 62, 63, and the cage-like protective cover 64 is robust. The movable assembly 70 is positioned on the cage-like protective cover 64 in a stable position, effectively supporting the drone body 10.

[0079] like Figure 4 As shown, as another embodiment of the present application, the cage-type protective cover 64 is disclosed to include a plurality of annular plates 641 and a plurality of arc-shaped plates 642 arranged in an staggered manner, and the plurality of arc-shaped plates 642 are arranged in an annular shape and spaced around the body 10; the annular plates 641 are connected to the arc-shaped plates 642, surrounding the body 10, the first rotor assembly 20 and the second rotor assembly 30; the plurality of annular plates 641 are arranged in parallel, and the first extension arm 61, the second extension arm 62 and the third extension arm 63 are all connected to the annular plates 641.

[0080] The staggered arrangement of the annular plates 641 and the curved plates 642 disclosed in this embodiment forms a protective frame. This provides both protection and sufficient open space to facilitate the flow of air or liquid media without affecting the drone's movement. Furthermore, cameras and sensors installed on the body 10 will not be obstructed, allowing for normal functions such as reconnaissance and photography. Furthermore, the frame-like structure uses less material, and the cage-like protective cover 64 is lightweight, further reducing the drone's load and improving its flexibility.

[0081] Specifically, in this embodiment, the multiple layers of annular plates 641 can be set to have the same diameter, or annular plates 641 of different diameters can be set according to the height. For example, the annular plate 641 set on the top layer is located above the body 10, and can be set to have a diameter slightly smaller than the wheelbase of the drone, so as to form protection from above the body 10 without contacting the body 10 and the blades, thereby further increasing the protection effect. Similarly, the annular plate 641 set on the bottom layer is positioned lower than the body 10, so that the lower surface of the body 10 is protected. Preferably, the position of the annular plate 641 set on the bottom layer is lower than the height of the first rotor assembly 20 and the second rotor assembly 30 when they are pushed laterally, so that when the drone moves on the ground or underwater, the body 10, the first rotor assembly 20 and the second rotor assembly 30 can remain suspended, reducing friction.

[0082] Specifically, as another embodiment of the present application, the mobile assembly 70 includes a plurality of rollers connected to the arc-shaped plate 642, and the rolling direction of the rollers is tangential to the circumference of the annular plate 641. In this embodiment, the rollers are used to provide support and reduce friction. Each roller rolls tangentially to the circumference of the annular plate 641, thereby enabling rolling in multiple directions and making the drone's lateral movement more flexible.

[0083] For example Figure 4 As shown, in this embodiment, four arc-shaped plates 642 are preferably provided, which are spaced 90 degrees apart in pairs, and four rollers are provided at the same time. At this time, the four rollers are arranged in pairs relative to each other, and each group of rollers is symmetrically arranged at both ends of the cage protection cover 64, so as to stably support the cage protection cover 64, reduce the chance of rollover, and improve the stability of movement.

[0084] For example Figure 4 As shown, as another embodiment of the present application, a connecting block 6421 is provided at the bottom end of the curved plate 642. A latch 6422 is formed on the inner side of the connecting block 6421 for latching the annular plate 641. The roller is provided on the outer side of the connecting block 6421. In this embodiment, the roller is provided on the outer side of the annular plate 641, at the connection point between the annular plate 641 and the curved plate 642. This location provides greater structural strength, thus providing more stable support for the roller and smoother rolling.

[0085] like Figure 5 As shown, as another embodiment of the present application, the propeller protection assembly 60 is disclosed to include a float 65, and the float 65 is connected to the annular plate 641; and at least two floats 65 are provided, and at least two of the floats 65 are symmetrically arranged on both sides of the body 10. When the cross-medium drone disclosed in this embodiment is used in a body of water, the buoyancy is increased by the float 65, which can prevent the body 10 from tilting or flipping, thereby improving stability. At the same time, when used in the air or on land, the gravity of the float 65 itself can be used as a counterweight. Providing at least two floats 65 on both sides of the body can make the balance of the entire device better and further improve stability.

[0086] Specifically, the shape of the float 65 disclosed in this embodiment can be set to a bow shape, and the outer side surface of the float 65 is an arc surface, the curvature of which is consistent with the curvature of the annular plate 641, so that the outer surface of the overall structure is smooth, which is more conducive to reducing wind resistance and improving stability during movement.

[0087] Specifically, the float 65 disclosed in this embodiment is made of any material such as rubber, foam, or sponge, is flexible, and can be configured as a hollow structure to reduce its own weight and increase buoyancy. Furthermore, the float 65 is fixed to the cage-type protective cover 64 to enhance the protection of the body 10.

[0088] In summary, the present application discloses a cross-media drone, which includes a body 10, a first rotor assembly 20, a second rotor assembly 30, a servo 40 and a multi-link transmission assembly 50, wherein the first rotor assembly 20 and the second rotor assembly 30 are arranged in parallel on both sides of the body 10; the first rotor assembly 20 and the second rotor assembly 30 are arranged in opposite directions, and the rotation direction of the first rotor assembly 20 is opposite to that of the second rotor assembly 30; the servo 40 is arranged on the body 10, at the midpoint between the first rotor assembly 20 and the second rotor assembly 30; the multi-link transmission assembly 50 is sleeved on the output shaft of the servo 40; one end of the multi-link transmission assembly 50 is connected to the first rotor assembly 20, and the other end is connected to the second rotor assembly 30; the multi-link transmission assembly 50 is used to drive the first rotor assembly 20 and the second rotor assembly 30 to rotate in opposite directions at the same speed. By simultaneously rotating the first and second rotor assemblies 20 and 30, the thrust direction is changed, allowing for rapid switching between lift and traverse modes. This allows the drone to adapt to complex operating environments, enabling it to operate in the air, on the ground, on the surface, and even underwater. This eliminates the need for multiple propellers, resulting in a simple product structure, lowering the drone's production costs and increasing its flexibility, enabling it to handle a variety of complex scenarios.

[0089] It should be noted that, unless there is any conflict, the embodiments and features in the embodiments of this application can be combined with each other.

[0090] It should be noted that the present invention takes a cross-media drone as an example to introduce the specific structure and working principle of the present invention, but the application of the present invention is not limited to cross-media drones, and can also be applied to the production and use of other similar workpieces.

[0091] It should be understood that the present invention is not limited to the exact construction described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.

[0092] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A cross-media drone, characterized in that: include: body; A first rotor assembly and a second rotor assembly are arranged in parallel on both sides of the fuselage; the first rotor assembly is arranged in opposite directions to the second rotor assembly, and the rotation direction of the first rotor assembly is opposite to the rotation direction of the second rotor assembly; a servo, provided on the body, at a midpoint between the first rotor assembly and the second rotor assembly; A multi-link transmission assembly is sleeved on the output shaft of the servo; one end of the multi-link transmission assembly is connected to the first rotor assembly, and the other end is connected to the second rotor assembly; the multi-link transmission assembly is used to drive the first rotor assembly and the second rotor assembly to rotate in opposite directions at the same speed.

2. The cross-media drone according to claim 1, characterized in that: A first connecting hole and a second connecting hole are respectively provided on both sides of the body; the first connecting hole and the second connecting hole are staggered and arranged in parallel up and down; The first rotor assembly includes a first rotating shaft and two first propellers, wherein the first rotating shaft is inserted into the first connecting hole; the two first propellers are respectively arranged at both ends of the first rotating shaft; The second rotor assembly includes a second rotating shaft and two second propellers, the second rotating shaft is inserted into the second connecting hole; the two second propellers are respectively arranged at both ends of the first rotating shaft; Wherein, one end of the multi-link transmission assembly is sleeved with the first rotating shaft, and the other end is sleeved with the second rotating shaft.

3. The cross-media drone according to claim 2, characterized in that: The first propeller includes a first motor and a first blade, and the first blade is mounted on an output shaft of the first motor; The second propeller includes a second motor and a second blade, and the second blade is mounted on an output shaft of the second motor; The first motor and the second motor are of the same model; the first blade and the second blade have the same diameter and opposite torsional directions.

4. The cross-media drone according to claim 2, characterized in that: The steering gear, the first rotating shaft and the second rotating shaft are arranged in a collinear manner; the multi-link transmission assembly includes: A rotating rod, wherein a connecting hole is provided in the middle of the rotating rod, and the connecting hole is used to plug in the output shaft of the steering gear; a first connector and a second connector are provided at both ends of the rotating rod respectively; a first push rod and a first fixing rod, wherein one end of the first push rod is hinged to the first connector and the other end is hinged to the first fixing rod; the first fixing rod is sleeved to the first rotating shaft; A second push rod and a second fixing rod, one end of the second push rod is hinged to the second connector, and the other end is hinged to the second fixing rod; the second fixing rod is sleeved to the second rotating shaft.

5. The cross-media drone according to claim 4, characterized in that: The first push rod includes a first straight portion and a first bent portion, one end of the first straight portion is hinged to the first connector, and the other end is connected to the first bent portion; an end of the first bent portion facing away from the first straight portion is hinged to the first fixing rod, and the first bent portion is bent in a direction away from the first rotation axis; The second push rod includes a second straight portion and a second bent portion, one end of the second straight portion is hinged to the second connecting head, and the other end is connected to the second bent portion; one end of the second bent portion facing away from the second straight portion is hinged to the second fixed rod, and the second bent portion is bent in a direction away from the second rotating axis.

6. The cross-media drone according to claim 1, characterized in that: The cross-media drone includes a propeller protection assembly and a moving assembly. The propeller protection assembly is connected to the body and wraps the body. The bottom surface of the propeller protection assembly is located below the bottom surface of the body. The moving assembly is arranged at the bottom of the propeller protection assembly for supporting the propeller protection assembly and the body.

7. The cross-media drone according to claim 6, characterized in that: The propeller protection assembly includes: A first extension arm and a second extension arm are arranged in parallel on both sides of the body; a third extension arm, provided on the body; an extension direction of the third extension arm is perpendicular to an extension direction of the first extension arm and an extension direction of the second extension arm; a cage-type protective cover connected to the first extension arm, the second extension arm, and the third extension arm; the cage-type protective cover is bowl-shaped and is inverted outside the body, the first rotor assembly, and the second rotor assembly; The moving component is arranged on the cage-type protective cover.

8. The cross-media drone according to claim 7, characterized in that: The cage-type protective cover includes a plurality of annular plates and a plurality of arc-shaped plates arranged in a staggered manner, wherein the plurality of arc-shaped plates are arranged in an annular shape and spaced around the body; the annular plates are connected to the arc-shaped plates and surround the body, the first rotor assembly, and the second rotor assembly; Wherein, a plurality of the annular plates are arranged in parallel, and the first extension arm, the second extension arm and the third extension arm are all connected to the annular plates.

9. The cross-media drone according to claim 8, characterized in that: The moving assembly includes a plurality of rollers connected to the arc-shaped plate; and the rolling directions of the rollers are tangent to the circumferential direction of the annular plate.

10. The cross-media drone according to claim 8, characterized in that: The propeller protection assembly includes a float, and the float is connected to the annular plate; and at least two floats are provided, and at least two floats are symmetrically arranged on both sides of the body.

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