WO2017132982A1

WO2017132982A1 - Rotor unmanned aerial vehicle

Info

Publication number: WO2017132982A1
Application number: PCT/CN2016/073621
Authority: WO
Inventors: 胡家祺
Original assignee: 胡家祺
Priority date: 2016-02-05
Filing date: 2016-02-05
Publication date: 2017-08-10

Abstract

A rotor unmanned aerial vehicle comprises a power device (10), a propeller assembly (20), a cradle head assembly (30), and a machine body frame (40). The propeller assembly (20) comprises a central fixed shaft (21), a mounting frame (22) mounted on the central fixed shaft (21), and propellers (23) mounted on the mounting frame (22) and capable of being folded relative to the mounting frame (22). The cradle head assembly (30) comprises a camera (32). The machine body frame (40) is located between the propellers (23) and a connection assembly (34), and comprises a holding portion (44) used for performing holding to facilitate handheld photographing when the propellers (23) are in a folded state. In the rotor unmanned aerial vehicle, the propellers (23) and the mounting frame (22) are disposed in a foldable manner, the power device (10) is accommodated in an accommodation chamber and the holding portion (44) is disposed on the machine body frame (40), which helps to carry out photographing by means of the holding portion (44) and the camera (32) when the rotor unmanned aerial vehicle is in a non-flight state, so that the photographing can be carried out by means of the camera (32) no matter whether the rotor unmanned aerial vehicle is in a flight state or the non-flight state, and when the rotor unmanned aerial vehicle is in the non-flight state, the photographing can be completed by merely holding the machine body frame (40) after the propellers (23) are folded; the rotor unmanned aerial vehicle has a simple structure and is convenient to use.

Description

Rotor drone

Technical field

[0001] The utility model belongs to the technical field of aircrafts, and in particular relates to a drone.

Background technique

[0002] Current mainstream rotor drones mainly include multi-rotor aircraft, single-rotor aircraft (conventional helicopters), and coaxial twin-propeller aircraft. In recent years, rotary wing drones have been widely used in various fields, such as aerial photography, forest fire prevention, border patrol, environmental monitoring, agriculture and other fields. This type of aircraft is also widely used in the field of consumer-grade rotary-wing UAVs. It is mainly used for personal aerial photography and self-timer. However, the multi-rotor aircraft also has some obvious shortcomings. The first multi-rotor aircraft has low aerodynamic efficiency; the second multi-rotor aircraft is bulky and unfavorable for carrying; the third multi-rotor aircraft has short cruising time; the fourth multi-rotor aircraft is flying. High noise; Due to the above shortcomings, the wide application of multi-rotor aircraft in the field of aerial photography is limited.

[0003] The most widely used rotator aircraft with photographic functions is the multi-rotor aircraft. For example, aircraft generally has four or more propellers, and a photographic device is installed underneath the aircraft to realize the function of aerial photography. Just as the Chinese patent (application number CN201220148590.9) publicly advertises an aircraft, but it cannot Hand-held photography on the ground; the aircraft is a multi-rotor form that can be folded and retracted for easy carrying. For example, with a 3-rotor design, each arm can be folded and equipped with an imaging device that can be shot during flight, but It can't be photographed by hand on the ground; for the coaxial scull aerial aircraft, the whole fuselage is cylindrical, the propeller can be folded and fitted on both sides of the fuselage for easy carrying, and the pan/tilt device can be mounted under it. Get a more stable shot, however, you can't shoot with your hand.

[0004] Another type of quadrotor is characterized by its small size, which is non-foldable but only the size of the palm, and is very convenient to carry. However, because of its small size, it has poor wind resistance and cannot be photographed by hand.

technical problem

[0005] The purpose of the present invention is to provide a rotary wing drone, which aims to solve the technical problem that the rotorcraft cannot realize the propeller folding and the hand-held photography in the prior art. Problem solution

Technical solution

[0006] The utility model is implemented in this way, a rotorcraft drone, comprising:

[0007] a power device for providing a driving force;

[0008] a propeller assembly, driven by the power unit, and including a center fixed shaft, a mounting bracket mounted on the center fixed shaft, and a propeller mounted on the mounting bracket and foldable relative to the mounting bracket; [0009] a cloud platform assembly, including a camera for photographing and a connection assembly for mounting the camera; [0010] a fuselage frame between the propeller and the connection assembly, the fuselage frame being provided with a capacity The accommodating cavity of the power unit is disposed, and includes a grip portion that is convenient for hand-held photographing when the propeller is in a folded state for holding.

[0011] Further, the rotor drone further includes a clamping assembly movably coupled to the grip portion for clamping the mobile terminal, and the mobile terminal is coupled to the camera signal.

[0012] Further, the clamping assembly includes a connecting member connected to the grip portion, a clamping member connected to the connecting member and rotating relative to the connecting member to adjust an angle, the mobile terminal Clamped on the clamping member.

[0013] Further, the clamping assembly further includes a pair of clamping members slidably mounted on the clamping member to adjust a spacing therebetween.

Further, the body frame has a cylindrical shape and is provided with a housing groove for accommodating the propeller on an outer wall thereof.

[0015] Further, the rotor drone further includes a battery housed in the accommodating cavity to supply power to the power device and the camera, and a fixing frame for fixedly mounting the battery.

[0016] Further, the mounting bracket includes a first mounting bracket and a second mounting bracket disposed coaxially along the central fixing shaft, and the propeller includes at least two first ends mounted on two ends of the first mounting bracket a propeller and at least two second propellers mounted at opposite ends of the second mounting bracket.

[0017] Further, the propeller assembly further includes a first hinge member rotatably coupled to the first mounting bracket and configured to mount the first propeller, and is rotatably coupled to the second mounting bracket and used for mounting The second hinge of the second propeller.

[0018] Further, the propeller assembly further includes a pitch for controlling the periodic pitch of the second propeller Control component.

[0019] Further, the pitch control assembly includes a power member, a rotating member that is sleeved on the central fixed shaft and is driven by the driving device to rotate around the central fixed shaft, and is set on the rotation An swashplate assembly that is externally coupled to the second mount to periodically pitch the second propeller and a linkage for transmitting power of the power member to the swashplate assembly.

[0020] Further, the swash plate assembly includes a swash plate that is sleeved outside the rotating member and has an inner wall that is spherical, one end is connected to opposite sides of the outer wall of the swash plate, and the other end is hinged to the swing of the second mounting frame. And a bearing fixed on the outer wall of the swash plate and a ring member fixedly connected to the bearing, wherein the ring member is provided with a fixing block connected to the link mechanism.

[0021] Further, the link mechanism includes a first link hinged to the fixed block at one end and an output pivotally connected to the other end of the first link and the other end of which is pivotally connected to the power component. Second link of the shaft

[0022] Further, the power member includes a fixing frame fixed to an end of the center fixing shaft and a pair of servo steering gear fixedly mounted on the fixing frame.

Further, the pitch control assembly further includes a stopper fixed to the fixed frame for restricting lateral movement of the inclined disk.

[0024] Further, the power unit includes a driving device that provides power and has an output shaft, a power transmission assembly that is mounted on the center fixed shaft and transmits power provided by the driving device to the propeller

[0025] Further, the pan/tilt assembly further includes a shock absorbing assembly mounted between the connecting component and the fuselage frame for shock absorption.

Further, the rotor drone further includes a plurality of light source assemblies fixedly mounted on the fuselage frame and irradiated with illumination light onto the propeller.

Advantageous effects of the invention

Beneficial effect

[0027] The utility model has the technical effect of the prior art: the rotor drone is foldable by the propeller and the mounting bracket, so as to facilitate the storage of the propeller in a non-flying state, and the utility model is convenient. Carrying; by setting the pan/tilt assembly to facilitate shooting with the camera while in flight; and And by accommodating the power device in the accommodating cavity and providing a grip on the body frame, so as to be in a non-flying state, by holding the grip and taking a picture with the camera, Therefore, the rotor drone can be photographed by the camera in both the flight state and the non-flying state, and in the non-flying state, the propeller can be completed by simply holding the propeller, and the structure is simple. Easy to use.

Brief description of the drawing

DRAWINGS

[0028] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings to be used in the embodiments of the present invention or the description of the prior art will be briefly described below. Obviously, the drawings described below It is only some embodiments of the present invention, and those skilled in the art can obtain other drawings according to these drawings without any creative work.

1 is a schematic structural view of a rotary wing drone provided by a hand-held photographing cymbal according to an embodiment of the present invention;

2 is an exploded view of the rotor drone of FIG. 1; [0030] FIG.

3 is a schematic structural view of a rotor-wing UAV according to an embodiment of the present invention in a flying state; [0032] FIG. 4 is a schematic structural view of a rotary-wing UAV provided by a hand-held shooting device according to an embodiment of the present invention; The clamping assembly is omitted;

Figure 5 is a partial exploded view of the rotor drone of Figure 4;

6 is a structural view of a rotor drone provided by an embodiment of the present invention, and the propeller is omitted;

7 is an exploded view of the rotor drone of FIG. 6.

DESCRIPTION OF REFERENCE NUMERALS

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Powerplant 272 swinging member drive 274 bearing output shaft 275 ring member power transmission assembly 276 fixed block driven wheel 28 linkage mechanism fixed bracket 280 first link propeller assembly 282 second link center fixed shaft 30 pan mount assembly mount 32 Camera first mounting bracket 34 connecting assembly second mounting bracket 36 shock absorbing assembly propeller 40 fuselage frame first propeller 44 grip portion second propeller 50 clamping assembly first hinge 52 connecting member second hinge 54 clamping member Pitch Control Assembly 56 Clamping Power Unit 60 Battery Mounting Frame 70 Mounting Servo Actuator 80 Mobile Terminal Rotating Member 90 Stopper Swashplate Assembly

Swash plate [0037]

Embodiments of the invention

[0038] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It is understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0039] Please refer to FIG. 1 to FIG. 7. The rotor drone provided by the embodiment of the present invention includes:

[0040] a power device 10, configured to provide a driving force;

[0041] The propeller assembly 20 is driven by the power unit 10 and includes a central fixed shaft 21, a mounting bracket 22 mounted on the central fixed shaft 21, and mounted on the mounting bracket 22 and mounted relative to the mounting a frame 22 foldable propeller 23;

[0042] a pan/tilt assembly 30, including a camera 32 for photographing and a connection assembly 34 for mounting the camera 32;

[0043] The fuselage frame 40 is located between the propeller 23 and the connecting component 34. The fuselage frame 40 is provided with a receiving cavity (not shown) for accommodating the power device 10, and includes The grip portion 44 is convenient for hand-held photographing when the propeller 23 is in a folded state for gripping.

[0044] The rotor drone provided by the embodiment of the present invention is foldably disposed by the propeller 23 and the mounting bracket 22, so as to facilitate the storage of the propeller 23 in a non-flying state, and is convenient to carry; The pan-tilt assembly 30 is adapted to be photographed by the camera 32 in a flight state; and the grip portion 44 is disposed on the body frame 40 by accommodating the power device 10 in the accommodating cavity In the non-flying state, by holding the grip portion 44 and taking a picture with the camera 32, the rotor drone can be photographed by the camera 32 in both the flight state and the non-flying state, and is not flying. The state 吋 only needs to fold the propeller 23 and then complete the shooting by holding the fuselage frame 40, and the structure is simple and convenient to use.

[0045] In this embodiment, the propeller 23 can be folded around the mounting bracket 22 along the two ends of the body frame 40, that is, one side is folded toward the side of the grip portion 44 for storage, and One is folded and stored toward the side away from the grip portion 44.

[0046] In other embodiments, the propeller 23 is detachably coupled to the mounting bracket 22, when not flying, The propeller 23 is detached from the mount 22 and photographed by the camera 32 by holding the grip portion 44. For example, a quick release structure is connected between the propeller 23 and the mounting bracket 22, and the propeller 23 can be quickly disassembled without using any tools, preferably by means of a snap connection. .

Referring to FIG. 1 to FIG. 4, further, the rotor drone further includes a clamping assembly 50 movably coupled to the grip portion 44 and configured to clamp the mobile terminal 80, the mobile terminal 80. Signaled to the camera 32. The mobile terminal 80 is mounted on the body frame 40 by setting the clamping assembly 50 so as to be hand-held, and the camera 32 is displayed by the mobile terminal 80. Improve the convenience of operation. The mobile terminal 80 is connected to the camera 32 to transmit a picture captured and captured by the camera 32 to the mobile terminal 80. Preferably, the mobile terminal 80 and the camera 32 are connected by WIFI. Or a wireless communication connection method such as a Bluetooth connection. Of course, other signal connection methods may also be used, and are not limited thereto.

In other embodiments, the shooting angle of the pan/tilt assembly 30 can be controlled by the mobile terminal 80 when the rotor drone is in an airplane mode or a handheld camera mode.

[0049] Referring to FIG. 1, FIG. 2 and FIG. 4, the clamping assembly 50 further includes a connecting member 52 connected to the grip portion 44, connected to the connecting member 52 and opposite to the The connecting member 52 is rotated to adjust the angled holding member 54, and the mobile terminal 80 is clamped to the holding member 54. The connecting member 52 is detachably connected to the grip portion 44, for example, by a snap connection. The clamping member 54 and the connecting member 52 are connected by a ball joint, so as to adjust the angle of the clamping member 54 relative to the body frame 40, so as to be suitable for different consumers' needs, preferably The holder 54 is formed integrally with the ball joint. The mobile terminal 80 is detachably snapped onto the clamping member 54.

Referring to FIGS. 1 and 2, further, the clamping assembly 50 further includes a pair of clamping members 56 slidably mounted on the clamping member 54 to adjust the spacing therebetween. By arranging the clamping members 56 and the clamping members 56 are mutually engaged on both sides of the mobile terminal 80, and the size of the mobile terminal 80 can be adjusted to adjust the distance between the two clamping members 56 to fit Different sizes of mobile terminals 80 have a wide range of applications.

[0051] In this embodiment, the clamping member 54 is provided with a pair of sliding slots (not shown), and the clamping members 56 are fixedly engaged with the sliding slots to make the clamping members. 56 guides sliding along the chute (not shown) Referring to FIG. 4, the body frame 40 has a cylindrical shape and a housing groove (not shown) for accommodating the propeller 23 is provided on an outer wall thereof. The propeller 23 is concealed on the fuselage frame 40 by providing the receiving groove, thereby ensuring that the fuselage frame 40 is clean after the propeller 23 is folded, and is held by the grip portion 44. After taking a picture, it is not necessary to arrange the propeller 23, which is convenient to use.

[0053] In other embodiments, a plurality of buckles (not shown) may be disposed on the body frame 40, and the buckles 23 cooperate with the propellers 23 to fix the propellers 23 to the machine. On the frame 40, it is easy to hold and take pictures.

[0054] Referring to FIG. 6 and FIG. 7, further, the rotor drone further includes a battery 60 housed in the accommodating cavity to supply power to the power unit 10 and the camera 32, and is used for fixing The holder 70 of the battery 60 is mounted. The battery 60 is disposed in the accommodating cavity to supply power to the power unit 10 and the camera 32, and the battery 60 no longer supplies power to the power unit 10 when it is not flying. To extend the battery life of the battery 60. In the case of the hand-held photographing mode, the camera 32 is powered by the battery 60.

[0055] Referring to FIG. 1 to FIG. 5, the mounting bracket 22 includes a first mounting bracket 220 and a second mounting bracket 222 disposed coaxially along the central fixed shaft 21, and the propeller 23 includes at least two A first propeller 230 mounted on both ends of the first mounting bracket 220 and at least two second propellers 232 mounted on opposite ends of the second mounting bracket 222 are supported. The first mounting bracket 220 and the second mounting bracket 222 are disposed along the axial direction of the central fixed shaft 21, and preferably, the first mounting bracket 220 and the second mounting bracket 222 are both opposite to the center. The fixed shaft 21 is coaxially disposed. At least two of the first propellers 23 0 are disposed on the first mounting bracket 220 and at least two of the second propellers 232 are disposed on the second mounting bracket 222, that is, aerodynamic layout using coaxial twin propellers .

[0056] In this embodiment, the power device 10 is located between the first mounting bracket 220 and the second mounting bracket 222, or the second mounting bracket 222 is located in the first mounting bracket 220. The positional relationship between the three and the power unit 10 is not limited thereto.

[0057] Referring to FIG. 1 to FIG. 5, further, the propeller assembly 20 further includes a first hinge member 24 rotatably coupled to the first mounting bracket 220 and configured to mount the first propeller 230, and a rotational connection. On the second mounting bracket 222 and used to mount the second hinge 25 of the second propeller 232. The first propeller 230 is hinged to the first mounting bracket 220 and the other end is fixed to the first propeller 230 , the first propeller 230 is folded relative to the first mounting bracket 220; likewise, the second hinge 25 is hinged to the second mounting bracket 222 and the other ends are fixed by the second hinge 25 The second propeller 232 is configured to fold the second propeller 232 relative to the second mounting bracket 222.

Referring to FIGS. 5-7, further, the propeller assembly 20 further includes a pitch control assembly 26 for controlling the periodic pitch of the second propeller 232. The second propeller 232 is periodically pitched by setting the pitch control assembly 26 to control the pitch and roll freedom of the rotor drone.

[0059] Referring to FIG. 6 and FIG. 7, further, the pitch control assembly 26 includes a power member 260, is sleeved on the central fixed shaft 21, and is driven by the driving device to rotate around the center. a rotating rotating member 2 62, a swash plate assembly 27 sleeved outside the rotating member 262 and connected to the second mounting bracket 222 to periodically change the second propeller 2 32 and The power of the power member 260 is transmitted to the link mechanism 28 on the swash plate assembly 27. Controlling the inclination angle of the swash plate assembly 27 by the link mechanism 28 by the power member 260, thereby inducing a periodic change of the pitch of the second propeller 232, thereby controlling the pitch of the rotor drone And roll two degrees of freedom. Preferably, the link mechanism 28 is coupled between the swash plate assembly 27 and the power member 260, but the position is not limited thereto.

[0060] Referring to FIG. 6 and FIG. 7, further, the swash plate assembly 27 includes a swash plate 270 sleeved on the outer side of the rotating member 262 and having a spherical inner surface, and one end is connected to opposite sides of the outer wall of the swash plate 270. and the other end hinged to the second mounting bracket 222 pivot member 272, is sleeved and fixed on the outer wall of the inclined plate 270 of the bearing ₂₇₄ and bearing 274 is fixedly connected to the annular member 275, the annular member A fixing block 276 connected to the link mechanism 28 is provided on the 275. The power member 260 drives the link mechanism 28 to rotate, thereby rotating the fixing block 276 and the ring member 275, and driving the swash plate 270 together with the swinging member 272 to drive the second mounting bracket 222. The pitching motion is periodically tilted such that the pitch of the second propeller 232 periodically changes to control the two degrees of freedom of pitch and roll of the rotor drone.

Referring to FIG. 6 and FIG. 7, further, the link mechanism 28 includes a first link 280 hinged to the fixed block 276 at one end and one end rotatably connected to the other end of the first link 280. And a second link 282 pivotally connected to the output shaft of the power member 260 at the other end. The second link 282 is connected between the power member 260 and the first link 280 to transmit the power of the power member 260 to the second link 28 2, and utilize the A link 280 is coupled between the second link 282 and the fixed block 276 to transmit the power to the fixed block 276, since the fixed block 276 is fixed to the ring 275 The ring member 275 is fixed to the swash plate 270 by the bearing 274 to drive the swash plate 270 to move, and a swinging member 272 is disposed between the swash plate 270 and the second mounting bracket 222. So that the pitch of the second propeller 232 is periodically changed to control the two degrees of freedom of pitch and roll of the rotor drone.

Referring to FIG. 6 and FIG. 7, further, the power member 260 includes a fixing frame 262 fixed to an end of the center fixing shaft 21 and a pair of servo steering gears 264 fixedly mounted on the fixing frame 262. . The servo frame 264 is mounted by the fixing frame 262. Preferably, the fixing frame 262 is fixedly mounted on the fixing frame 70 and located between the swash plate 270 and the fixing frame 70.

Referring to FIG. 6 and FIG. 7, further, the pitch control assembly 26 further includes a stopper 90 fixed to the fixing frame 26 2 for restricting lateral movement of the swash plate 270. By setting the stopper 90 to avoid lateral movement of the swash plate 270, the flight stability of the rotor drone can be effectively controlled.

5 to 7, further, the power unit 10 includes a driving device 12 that provides power and has an output shaft 120, is mounted on the center fixed shaft 21, and is provided by the driving device 12. Power is transmitted to the power transmission assembly 14 of the propeller 23. Controlling the first propeller 230 and the second propeller 232 with the drive device 12 such that the first propeller 230 and the second propeller 232 obtain flight lift and control the rotor with the drive device 12 The yaw of the drone.

[0065] In this embodiment, the power unit 10 further includes a fixing bracket fixedly mounted on the center fixing shaft 21 for fixedly mounting the driving device 12. Preferably, the first mounting frame 220 And the second mounting is located on opposite sides of the fixing bracket. Preferably, the number of the driving devices 12 is two, and are respectively located at two sides of the central fixed shaft 21 for respectively driving the first propeller 230 and the second propeller 232 through the power transmission The assembly 14 controls the rotation of the first propeller 230 and the second propeller 232 to obtain flight lift, and controls the yaw degree of freedom by using the difference in rotational speeds of the two driving devices 12. Preferably, the power unit 10 is a motor.

[0066] In this embodiment, the power transmission assembly 14 includes a driving wheel (not shown) mounted on the output shaft 120 and mounted on the center fixed shaft 21 and mated with the driving wheel The driven wheel 140 that drives the propeller 23 to rotate has a certain deceleration effect by providing the driving wheel and the driven wheel 140. Preferably, the driving wheel and the driven wheel 140 are gears that mesh with each other, and may also be other A mechanism to achieve deceleration. Preferably, the number of the power transmission components 14 is two, which are respectively connected between a driving device 12 and the first propeller 230 and between the other driving device 12 and the second propeller 232, respectively The power of the two driving devices 12 is transmitted to the first propeller 230 and the second propeller 232.

[0067] Referring to FIG. 1 to FIG. 4 and FIG. 6 and FIG. 7, further, the pan/tilt assembly 30 further includes a mounting portion between the connecting assembly 34 and the fuselage frame 40 for shock absorption. Shock absorbing assembly 36. By setting the shock absorbing component 3 6, to ensure that the influence of the vibration of the propeller 23 on the camera 32 during the operation of the propeller 23 is avoided, the camera 32 is prevented from vibrating due to the operation of the propeller 23, thereby ensuring the shooting quality.

Referring to FIG. 3, further, the rotor drone further includes a plurality of light source assemblies (not shown) fixedly mounted on the body frame 40 and irradiated with light to the propellers 23. Preferably, the light source assembly includes at least one illuminating light source, and the different illuminating light sources are used for two or more illuminating light sources, by arranging the light source assembly to illuminate the propeller 23 with optical light emitted therefrom. With the visual persistence effect, the corresponding color of light can be reflected on the blades of the propeller 23, so that the operator can clarify the flight direction of the rotor drone or the orientation of the camera.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalents, and improvements made within the spirit and principles of the present invention should be It is included in the scope of protection of the present invention.

Claims

Claim

[Claim 1] A rotary wing drone, comprising:

Power unit for providing driving force;

a propeller assembly, driven by the power unit, and including a central fixed shaft, a mounting bracket mounted to the central fixed shaft, and a propeller mounted to the mounting bracket and foldable relative to the mounting bracket;

a pan/tilt head assembly, including a camera for photographing and a connection assembly for mounting the camera;

a fuselage frame between the propeller and the connecting component, the fuselage frame being provided with an accommodating cavity for accommodating the power device, and including when the propeller is in a folded state for holding A grip for easy hand-held photography.

[Claim 2] The rotary wing drone according to claim 1, further comprising a clamp assembly movably coupled to the grip portion for clamping the mobile terminal, the mobile terminal and the Camera signal connection.

[Claim 3] The rotary wing drone according to claim 2, wherein the clamp assembly includes a connecting member coupled to the grip portion, coupled to the connecting member and opposite to the The connector rotates to adjust the angled clamping member, and the mobile terminal is clamped to the clamping member.

[Claim 4] The rotor drone according to claim 3, wherein the clamping assembly further includes a pair of clamping members slidably mounted on the clamping member to adjust a spacing therebetween .

The rotor-wing drone according to claim 1, wherein the body frame has a cylindrical shape and a housing groove for accommodating the propeller is provided on an outer wall thereof.

[Claim 6] The rotary wing drone according to claim 1, further comprising a battery housed in the accommodating cavity to supply power to the power unit and the camera, and a fixed installation The holder of the battery.

The rotary wing drone according to any one of claims 1 to 6, wherein the mounting bracket includes a first mounting bracket and a second mounting bracket disposed coaxially along the central fixed shaft The propeller includes at least two first propellers mounted at two ends of the first mounting bracket and at least two second propellers mounted on opposite ends of the second mounting bracket. The rotary wing drone according to claim 7, wherein said propeller assembly further comprises a first hinge member rotatably coupled to said first mounting bracket for mounting said first propeller and rotatably coupled thereto a second mounting on the second mounting bracket and for mounting the second propeller.

The rotary wing drone according to claim 7, wherein said propeller assembly further comprises a pitch control assembly for controlling said second propeller to periodically vary pitch.

A rotary wing drone according to claim 9, wherein said pitch control assembly comprises a power member, is sleeved on said central fixed shaft and is driven by said drive means to rotate about said central fixed shaft a rotating member, a swash plate assembly sleeved outside the rotating member and connected to the second mounting bracket to periodically variably distance the second propeller, and a device for transmitting power of the power member to the Slant the linkage on the disc assembly.

The rotor drone according to claim 10, wherein the swash plate assembly comprises a swash plate disposed outside the rotating member and having an inner wall which is spherical, and one end is connected to opposite sides of the outer wall of the swash plate and the other end is a swinging member hinged to the second mounting bracket, a bearing sleeved and fixed to the outer wall of the swash plate, and a ring member fixedly coupled to the bearing, the ring member being provided with the link mechanism Fixed block.

A rotor drone according to claim 11, wherein said link mechanism includes a first link hinged to said fixed block at one end and one end rotatably coupled to the other end of said first link and another One end is pivotally connected to the second link of the output shaft of the power member.

A rotary wing drone according to claim 10, wherein said power member includes a fixed frame fixed to an end of said center fixed shaft and a pair of servo steering gear fixedly mounted to said fixed frame.

The rotary wing drone according to claim 13, wherein said pitch control assembly further comprises a stopper fixed to said fixed frame for restricting lateral movement of said inclined disk. A rotor drone according to any one of claims 1 to 6, wherein said power unit includes a driving device that provides power and has an output shaft, is mounted on said center fixed shaft, and drives said driving device The power provided is transmitted to the power transmission assembly of the propeller. The rotorcraft drone according to any one of claims 1 to 6, wherein the pan/tilt head The assembly also includes a shock absorbing assembly mounted between the connecting assembly and the fuselage frame for shock absorption.

[Claim 17] The rotary wing drone according to claim 16, further comprising a plurality of light source assemblies fixedly mounted on the body frame and irradiated with light to the propeller.