WO2019142961A1

WO2019142961A1 - Boom coupling device for unmanned flying object and unmanned flying object using same

Info

Publication number: WO2019142961A1
Application number: PCT/KR2018/001085
Authority: WO
Inventors: 지은호
Original assignee: 한화정밀기계 주식회사
Priority date: 2018-01-18
Filing date: 2018-01-24
Publication date: 2019-07-25
Also published as: KR20190088208A; CN110053757A

Abstract

Provided is a boom coupling device for an unmanned flying object, the device connecting a blade portion for providing the unmanned flying object with flight power to a body thereof. The boom coupling device comprises: an outer connector to be electrically connected to the body; an intermediate connector detachably connected to the outer connector and supplying electric power to the blade portion; a boom housing to be mounted on the body; a boom bracket receiving the intermediate connector and coupled to the boom housing by insertion of first and second fixing shafts positioned at different points; and a boom rod extending from the boom bracket to be connected to the blade portion, wherein when the insertion of the first fixing shaft is released, the boom bracket can rotate with reference to the second fixing shaft, and when the insertion of the second fixing shaft is additionally released, the boom bracket can be separated from the boom housing.

Description

Boom coupling device for unmanned aerial vehicle and unmanned vehicle using the same

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a unmanned aerial vehicle, and more particularly, to a boom connecting apparatus capable of easily folding a wing for a unmanned aerial vehicle and a boom rod to and from the body of the unmanned air vehicle.

A drone is an unmanned flying object in the form of an airplane or helicopter flying by induction of a radio wave without a person boarding it. These drones originally originated from the logistics industry, but recently drones have started to be used commercially, and research on them has also been actively conducted. In recent years, drone has been utilized in various fields such as logistics delivery, disaster relief, broadcast leisure, etc. in addition to military use due to various advantages such as simplicity, promptness, and economy.

Drones have a number of advantages, but it is also true that there is a high risk of falling due to changes in the external environment such as wind, and immaturity of the driving operation. And because the drones and their parts are so expensive, the economic damage caused by the drones' damage is inevitable. Moreover, when a dron crashes, the risk of secondary damage to people and objects as well as the enormous economic damage caused by the breakage of the multi-copter drone itself is also serious.

For this reason, the stability of the drones has been emphasized, and in particular, how to design the structure of the drones' wings and landings is becoming an important issue for this stability. That is, in designing the structure of the wing portion of the drones, it is necessary to consider both the problem that the drones rise and fall stably at the time of takeoff and landing and the operational problems that move in a specific direction after takeoff.

The conventional drones, particularly the wing parts (motors, propellers, etc.) of the small drones, are integrally formed with the main body without a separate boom rod or arm connecting the dron main body, And the risk of breakage of the integral structure during the process. In order to overcome the limitation of the dron structure, a new type of drones having a foldable boom assy or a detachable or removable boom assy is being developed. Among them, the folding type is applied to a small or medium type airframe to provide user convenience in addition to flying, and the removable type is mainly used for a large size boom and can be completely separated from the gas, thereby further enhancing the user's portable convenience.

Thus, despite the advantages provided by the drones having a foldable or detachable structure, there still remains a problem causing inconvenience in use. In the case of the folding type, it is configured with a relatively simple structure so that the user can easily operate and can reduce a large volume in a short time. On the other hand, as the size of the gas increases, the weight and volume of the boom structure increase, . On the other hand, in the case of the above-mentioned detachable drones, the volume is minimized at the time of detaching, and the convenience of storing the parts for carrying or moving is convenient. On the other hand, there is no way to reduce the volume before removing, ), It is troublesome because the number of parts to carry is large.

An object of the present invention is to provide a boom coupling device for a unmanned aerial vehicle which can be easily and stably carried regardless of the size and use of the unmanned aerial vehicle.

It is another object of the present invention to provide a boom coupling device for an unmanned aerial vehicle which can utilize both the advantages of the folding structure and the advantages of the detachable structure through a flexible hinge structure.

The technical objects of the present invention are not limited to the technical matters mentioned above, and other technical subjects not mentioned can be clearly understood by those skilled in the art from the following description.

According to an aspect of the present invention, there is provided a boom coupling apparatus for a UAV that connects a main body of a UAV and a wing for providing a flight power of an unmanned air vehicle, connector; An intermediate connector detachably coupled to the external connector and providing power to the wing; A boom housing mounted on the main body; A boom bracket coupled to the boom housing by insertion of first and second stationary shafts located at different points and receiving the intermediate connector; And a boom rod extending from the boom bracket and connected to the wing portion,

When the insertion of the first fixing shaft is released, the boom bracket is rotatable with respect to the second fixing shaft, and further, when the insertion of the second fixing shaft is released, the boom bracket is separated from the boom housing .

According to another aspect of the present invention, there is provided an unmanned aerial vehicle including a wing unit for providing a power of a unmanned air vehicle; A body of the unmanned aerial vehicle; And a boom coupling device for the unmanned aerial vehicle that connects the wing portion and the main body,

The boom coupling device for an unmanned aerial vehicle includes an external connector electrically connected to the main body; An intermediate connector detachably coupled to the external connector and providing power to the wing; A boom housing mounted on the main body; A boom bracket coupled to the boom housing by insertion of first and second stationary shafts located at different points and receiving the intermediate connector; And a boom rod extending from the boom bracket and connected to the wing portion,

According to the boom defective device for an unmanned aerial vehicle according to the present invention, it is possible to enhance both the flight stability of the unmanned aerial vehicle and the portability of the user.

The boom defective device for an unmanned aerial vehicle according to the present invention has an advantage that the boom can be folded or removed from the body of the unmanned air vehicle without a complicated separate structure.

1 is a perspective view of an unmanned aerial vehicle according to an embodiment of the present invention.

FIG. 2 is a perspective view showing one boom coupling device of the boom coupling devices provided in the unmanned air vehicle of FIG. 1. FIG.

3 is a perspective view showing the structure of the wing portion in more detail;

4A and 4B are perspective views of a boom bracket according to an embodiment of the present invention, respectively, viewed from different directions.

Fig. 5A is a longitudinal sectional view of the boom bracket when the rotation cam is in the first position, and Fig. 5B is a longitudinal sectional view of the boom bracket when the rotation cam is in the second position.

6 is a bottom view of the boom bracket viewed from below.

7 is a perspective view illustrating a boom housing according to an embodiment of the present invention.

8 is a perspective view of a bracket-housing assembly coupled with a boom bracket and a boom housing.

9A is a longitudinal sectional view of the bracket-housing assembly when the first shaft is inserted, and FIG. 9B is a longitudinal sectional view of the bracket-housing assembly when the first shaft is released.

10A and 10B are a perspective view and a side view, respectively, of the boom coupling device in a state in which the boom bracket rotates relative to the boom housing.

11 is a perspective view of the boom coupling device in a state in which the boom bracket is completely separated from the boom housing.

12A and 12B are perspective views of a boom coupling apparatus for an unmanned aerial vehicle according to another embodiment of the present invention.

Figs. 13A and 13B are side views of a boom coupling apparatus according to another embodiment of the present invention, showing the boom bracket before and after advancing to the boom housing. Fig.

Fig. 14A is a side view of the boom coupling device when the boom bracket rotates with respect to the boom housing in the forward position of the through slot, and Fig. 14B is a side view of the boom coupling device when the boom bracket is completely separated from the boom housing.

15 is a side view showing a boom coupling apparatus for an unmanned aerial vehicle according to another embodiment of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention, and the manner of achieving them, will be apparent from and elucidated with reference to the embodiments described hereinafter in conjunction with the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as being limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. Is provided to fully convey the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims. Like reference numerals refer to like elements throughout the specification.

Unless defined otherwise, all terms (including technical and scientific terms) used herein may be used in a sense commonly understood by one of ordinary skill in the art to which this invention belongs. Also, commonly used predefined terms are not ideally or excessively interpreted unless explicitly defined otherwise.

The terminology used herein is for the purpose of illustrating embodiments and is not intended to be limiting of the present invention. In the present specification, the singular form includes plural forms unless otherwise specified in the specification. The terms " comprises "and / or" comprising "used in the specification do not exclude the presence or addition of one or more other elements in addition to the stated element.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a perspective view of an unmanned aerial vehicle 90 according to an embodiment of the present invention. The unmanned air vehicle 90 includes a plurality of

boom coupling devices

100a, 100b, 100c and 100d for a unmanned aerial vehicle and a main body 80 to which the

boom coupling devices

100a, 100b, 100c and 100d for the unmanned aerial vehicle are mounted. . The plurality of

boom connecting devices

100a, 100b, 100c, and 100d for the unmanned aerial vehicle may be mounted on the main body 80 in a plurality of symmetrical radial directions. Each of the

boom connecting devices

100a, 100b, 100c and 100d for boats is provided with

boom rods

30a, 30b, 30c and 30d (boom rod) connected to the wing portion,

Assemblies

60a, 60b, 60c and 60d.

The main body 80 is provided with a battery for supplying power to the wing portion, a GPS sensor for sensing the position of the unmanned air vehicle 90, a camera for photographing an image, and a controller for controlling the rotation speed of the wing portion .

FIG. 2 is a perspective view illustrating one of the

boom coupling devices

100a, 100b, 100c, and 100d provided in the unmanned air vehicle 90 of FIG. 2 shows the boom attaching apparatus 100 as including the wing portion 50. The boom attaching apparatus 100 is not limited to the wing portion 50, As shown in FIG.

The boom coupling device 100 includes an external connector 45 electrically connected to the main body 90 to transmit power and / or control signals provided from the main body 90, And an intermediate connector (40) for transmitting the external power and / or control signal to the wing (50). The intermediate connector (40) is connected to a cable (56) which extends to the wing (50) again. At the end of the cable 56, a connection plug 55 that can be electrically connected to the wing portion 50 may be provided.

A boom housing 20 is mounted on the main body 80 and a boom bracket 10 is rotatable with respect to the boom housing 20 and is detachable from the boom housing 20 To the boom housing (20). For example, the boom bracket 10 can be coupled with the boom housing 20 by inserting

first fixing shafts

151a, 151b and

second fixing shafts

251a, 251b located at different points .

When the insertion of the

first fixing shafts

251a and 251b is released while the first and

second fixing shafts

151a, 151b, 251a and 251b are inserted, And is rotatable about the two fixed

shafts

151a and 151b. In addition, when the insertion of the

second fixing shafts

151a and 151b is released, the boom bracket 10 can be detached from the boom housing 20.

The intermediate connector 40 and the external connector 45 are accommodated in the boom bracket 10 and the boom housing 20. For example, the intermediate connector 40 may be housed in the boom bracket 10 and the external connector 45 may be housed in the boom housing 20.

The boom rod 30 extends from the boom bracket 10 and is connected to the wing portion 50 and receives the cable 56 and the connection plug 55 therein. The boom rod 30 is inserted into the circular opening 11 of the boom bracket 10 and can be fastened by conventional fasteners such as bolts, pins, rivets and the like. Also, the boom rod 30 is inserted into the circular opening 541 of the wing portion 50 and can be fastened by such fasteners.

3 is a perspective view showing the structure of the wing portion 50 in more detail.

The wing portion 50 includes a propeller 51 for providing lifting force to the unmanned air vehicle 90, a rotation support portion 52 for transmitting the rotation force to the propeller 51 and supporting the propeller 51, And

brackets

53 and 54 for attaching the first and second fasteners 52 to each other. A motor (not shown) for generating the rotational force may be accommodated in the

brackets

53 and 54. A circular opening 541 for mounting the boom rod 30 is formed on one side of the bracket 54. The wing portion 50 may be integrally formed with the boom coupling device 100, but may be configured to be detachable from the boom coupling device 100 by a separate member.

4A and 4B are perspective views of the boom bracket 10 according to an embodiment of the present invention, respectively, viewed from different directions. The boom bracket 10 includes a circular opening 11 for mounting the boom rod 30 and a housing coupling portion 19 for accommodating the cam assembly 15. A plurality of

fastening holes

12a, 12b, 12c and 12d are formed in the circular opening 11 and the boom bracket 10 and the boom rod 30 can be fastened by inserting fasteners therein.

The housing coupling portion 19 may be coupled to the boom housing 20 by first fixing

shafts

251a and 251b and

second fixing shafts

151a and 151b. The

first fixing shafts

251a and 251b are inserted into the first through

holes

14a and 14b and the

second fixing shafts

151a and 151b are inserted into the second through

holes

16a and 16b.

4b, the cam assembly 15 includes the

second fixing shafts

151a and 151b and the

second fixing shafts

151a and 151b protruding out of the second through

holes

16a and 16b (Second position) or retracted (second position) into the second through

holes

16a, 16b. The boom bracket 10 includes

elastic members

152a and 152b for providing an elastic restoring force (compression force) to the

second fixing shafts

151a and 151b when the rotation cam 155 is in the first position .

5A is a longitudinal sectional view of the boom bracket 10 when the rotation cam 155 is in the first position and Fig. 5B is a longitudinal sectional view of the boom bracket 10 when the rotation cam 155 is in the second position. Fig. to be. The first position means a position where the long axis of the rotation cam 155 is parallel to the

second fixing shafts

151a and 151b and the long axis of the rotation cam 155 corresponds to the position of the

second fixing shafts

151a and 151b, As shown in FIG.

5A, when the rotation cam 155 is in the first position, the protrusion 159 formed on the long axis of the rotation cam 155 pushes the inner end of the

second fixing shaft

151a, 151b So that the

second fixing shafts

151a and 151b protrude outward.

At this time, the

elastic members

152a and 152b are compressed to provide an elastic restoring force to the

second fixing shafts

151a and 151b. Therefore, a greater resistance force acts when rotating the rotation cam 155 from the second position to the first position, as compared to when the rotation cam 155 rotates from the first position to the second position.

The

elastic members

152a and 152b are rotatably supported by the stepped

portions

153a and 153b formed at the inner ends of the

second fixing shafts

151a and 151b, And can be installed between the inner side walls of the boom bracket 10.

Referring to FIG. 5B, a stopper 158 for limiting the rotation of the rotation cam 155 is formed inside the boom bracket 10. Therefore, when the rotation cam 155 is in the second position, the protrusion 159 formed on the long axis of the rotation cam 155 engages the stopper 158, so that the rotation of the rotation cam 155 Is limited within a predetermined angle range (e.g., 90 degrees). When the rotation cam 155 is in the second position, the

elastic members

152a and 152b are released from compression and the elastic restoring force is released.

The

second fixing shafts

151a and 151b are inserted together into the boom housing 20 and the boom bracket 10 when the rotation cam 155 is in the first position and the rotation cams 155 The

second fixing shafts

151a and 151b are disengaged from the boom housing 20 when the first and

second fixing shafts

151a and 151b are in the second position. At this time, the engagement between the boom bracket 10 and the boom housing 20 is released at least at the positions of the

second fixing shafts

151a and 151b.

6 is a bottom view of the boom bracket 10 viewed from below.

A cam operation knob 156 exposed to the outside of the boom bracket 10 and coaxial with the rotation cam 155 is provided on a bottom surface of the boom bracket 10 so that the user can rotate the rotation cam 155. [ a knob is provided. The user can grasp the knob 157 formed on the cam operation knob 156 and rotate clockwise or counterclockwise to rotate the rotation cam 155 so that the

second fixing shafts

151a and 151b It can be projected to the outside of the boom bracket 10 or can be retracted into the inside of the fire bracket 10.

7 is a perspective view showing a boom housing 20 according to an embodiment of the present invention.

The boom housing 20 includes two

side wall plates

21a and 21b and an upper plate 23 connecting the

side wall plates

21a and 21b. The boom housing 20 is formed with the front opening portion 28 and the lower opening portion 29 so that the boom bracket 10 can freely rotate within a predetermined angle range with respect to the boom housing 20. [

Each of the two

side wall plates

21a and 21b may have seating grooves 24a and 24b and

lock levers

25a and 25b installed therein. The lock levers 25a and 25b are disposed at a first position where the

first fixing shafts

251a and 251b are inserted together with the boom bracket 10 and the boom housing 20 and the

first fixing shafts

251a and 251b ) Is released from the boom bracket (10). In order to prevent slippage during such operation, the surfaces of the lock levers 25a and 25b may be provided with concave and convex portions 252a and 252b.

More specifically, the lock levers 25a and 25b include

rotation shafts

254a and 254b that the lock levers 25a and 25b rotate within a predetermined range when the user presses the lock levers 25a and 25b, And the

first fixing shafts

251a and 251b that move between the first position and the second position in accordance with the rotation of the

rotating shafts

254a and 254b. The

rotary shafts

254a and 254b may be inserted into supports 241a and 241b formed in the seating portions 24a and 24b and rotated.

The locking levers 25a and 25b may further include an elastic member (not shown) and guide

bars

253a and 253b. The guide bars 253a and 253b are located on opposite sides of the

first fixing shafts

251a and 251b with respect to the

rotation shafts

254a and 254b in the lock levers 25a and 25b. The guide bars 253a and 253b are provided with elastic restoring force by the

elastic members

152a and 152b when the user pushes the lock levers 25a and 25b. At this time, the

first fixing shafts

251a and 251b are retracted to the outside of the third through

holes

22a and 22b. Further, when the user releases the depression of the lock levers 25a, 25b, the

first fixing shafts

251a, 251b advance while returning to the inside of the third through

holes

22a, 22b.

8 is a perspective view of a bracket-housing assembly 60 to which the boom bracket 10 and the boom housing 20 are coupled.

As described above, the boom bracket 10 is provided with the first through

holes

14a and 14b and the second through

holes

16a and 16b, and the boom housing 20 is provided with the third through

holes

22a, 22b and fourth through

holes

26a, 26b are formed. The

first fixing shafts

251a and 251b may be inserted into the first through

holes

14a and 14b and the third through

holes

22a and 22b and the

second fixing shafts

151a and 151b May be inserted into the second through

holes

16a and 16b and the fourth through

holes

26a and 26b.

When the

first fixing shafts

251a and 251b are released from the boom bracket 10 with the first and

second fixing shafts

151a, 151b, 251a and 251b inserted, And is rotatable on the basis of the second fixed

shafts

151a and 151b. The boom bracket 10 is detachable from the boom housing 20 when the

second fixing shafts

151a and 151b are released from the boom bracket 10, (40) can be released from the external connector (45) disposed in the boom housing (20).

9A is a longitudinal sectional view of the bracket-housing assembly 60 when the

first shafts

251a and 251b are inserted and FIG. 9B is a longitudinal sectional view of the bracket-housing assembly 60 when the

first shafts

251a and 251b are released. FIG.

9A, the

first shafts

251a and 251b include first through

holes

14a and 14b formed in the boom bracket 10 and third through

holes

22a and 22b formed in the boom housing 20, As shown in Fig. Therefore, at this time, the first and

second shafts

251a, 251b, 151a, and 151b are inserted into the boom bracket 10 and the boom housing 20 at different positions, As shown in FIG.

Then, when the user presses the surfaces of the lock levers 25a and 25b, the second shafts 251a and 252b are disengaged from the first through

holes

14a and 14b as shown in FIG. 9B. Therefore, the boom bracket 10 and the boom housing 20 are coupled to each other only by the

second shafts

151a and 151b at least at the positions of the

first shafts

251a and 251b. Therefore, the boom bracket 10 can rotate relative to the boom housing 20 with respect to the

second shafts

151a and 151b.

10A and 10B are a perspective view and a side view of the boom coupling device 100 in a state in which the boom bracket 10 is rotated with respect to the boom housing 20 as described above.

10A and 10B, the boom bracket 10 and the boom rod 30 are rotated at substantially right angles to the boom housing 20 with respect to the

second shafts

151a and 151b. A hooking jaw (27 in Fig. 11) may be formed in the boom housing 20 so that the boom bracket 10 does not pivot beyond a predetermined angular range within the boom housing 20. [ At this time, since the intermediate connector 40 is completely separated from the external connector 45, the electrical connection between the wing portion 50 and the main body 90 is cut off.

11 is a perspective view of the boom coupling device 100 in a state in which the boom bracket 10 is completely separated from the boom housing 20. Fig.

When the boom bracket 10 rotates relative to the boom housing 20 as shown in Fig. 10A, when the

second shafts

151a and 151b are retracted inward by the operation of the rotation cam 155 described above, (151a, 151b) are separated from the fourth through holes (26a, 26b) formed in the boom housing (20). Therefore, the boom bracket 10 can be completely separated from the boom housing 20 because there is no point between the boom bracket 10 and the boom housing 20 at this point.

12A and 12B are perspective views of a boom coupling apparatus 200 for an unmanned aerial vehicle according to another embodiment of the present invention. 12A shows a state before the boom bracket 110 is turned, and FIG. 12B shows a state after the boom bracket 110 has turned.

In the boom coupling device 200 for a unmanned aerial vehicle, a seating groove 124 is formed in the upper plate 123 of the boom housing 120, and a lock lever 125 is provided thereon. A first through hole 14 is formed on the upper side of the boom bracket 110 corresponding to the lock lever 125.

The user removes the boom bracket 10 and the boom rod 30 as shown in Fig. 12B by pressing the lock lever 125 to release the first shaft (not shown) from the first through hole 14 of the boom bracket 10 And can be rotated relative to the boom housing 120.

13A to 14B show a boom coupling apparatus 300 for an unmanned aerial vehicle according to another embodiment of the present invention. 13A and 13B show a side view before the boom bracket 10 is advanced with respect to the boom housing 220 and a side view after the boom bracket 10 has advanced, respectively.

Through holes 226a and 226b extending from the main body 80 toward the boom rod 30 are formed in the boom housing 220 in place of the fourth through

holes

26a and 26b described above Respectively. 13A, the

second shafts

151a and 151b are located at the retracted positions of the through slots 226a and 226b. Then, when the user depresses the lock levers 25a and 25b to release the

first shafts

251a and 251b, the

second shafts

151a and 151b are slidable in the through slots 226a and 226b.

As shown in FIG. 13B, when the user pulls the boom rod 30 forward, the

second shafts

151a and 151b move to the advancing positions of the through slots 226a and 226b. At this time, the intermediate connector 40 is detached from the external connector 45 and the electrical connection between the main body 90 and the wing portion 50 is cut off.

14A is a side view of the boom coupling device 300 when the boom bracket 10 rotates with respect to the boom housing 220 at the forward positions of the through slots 226a and 226b and Fig. Is a side view of the boom coupling device 300 when fully separated from the housing 220.

The reason why the through slots 226a and 226b extending from the main body 80 in the direction of the boom rod 30 are used in place of the fourth through

holes

26a and 26b in the above- The coupling between the intermediate connector 40 and the external connector 45 is smoothly released by the rotation of the connector 10. When the boom bracket 10 is rotated with respect to the boom housing 20 in the boom coupling apparatus 100 of the embodiment described above, the rotation is based on one fixed shaft, that is, the fourth through

holes

26a and 26b , Some interference may occur between the

connectors

40 and 45 that should be disengaged.

When the

second shafts

151a and 151b are retracted inward by the operation of the rotation cam 155 when the boom bracket 10 is in the forward position of the through slots 226a and 226b, The boom rods 10 and the boom rods 30 can be completely separated from the boom housing 220.

15 is a side view showing a boom coupling apparatus 400 for an unmanned aerial vehicle according to another embodiment of the present invention.

The boom coupling apparatus 400 differs from the boom coupling apparatus 400 in that a flexible cable 440 is used instead of the intermediate connector 40 and the external connector 45 in the form of a rigid connector. In this case, even when the through

holes

26a and 26b are used without using the through slots shown in Fig. 13A, interference by the connector does not occur when the boom bracket 10 is rotated with respect to the boom housing 20. [ Of course, a connector (not shown), which can be connected to the external connector 45, may be provided at the end of the cable 440 in order to finally disconnect the boom bracket 10 from the boom housing 20. [

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, You will understand. It is therefore to be understood that the embodiments described above are in all respects illustrative and not restrictive.

Claims

1. A boom coupling device for a unmanned aerial vehicle connecting a wing portion for providing a flight power of an unmanned aerial vehicle and a body of a unmanned aerial vehicle,

An external connector electrically connected to the main body;

An intermediate connector detachably coupled to the external connector and providing power to the wing;

A boom housing mounted on the main body;

A boom bracket coupled to the boom housing by insertion of first and second stationary shafts located at different points, the boom bracket receiving the intermediate connector;

And a boom rod extending from the boom bracket and connected to the wing portion,

When the insertion of the first fixing shaft is released, the boom bracket is rotatable with respect to the second fixing shaft, and further, when the insertion of the second fixing shaft is released, the boom bracket is separated from the boom housing A boom coupling device for a unmanned aerial vehicle, made possible.
The method according to claim 1,

Wherein the boom bracket includes a rotation cam and the second fixing shaft,

The second fixing shaft is inserted into the boom housing and the boom bracket together when the rotation cam is in the first position in accordance with the rotation of the rotation cam,

And the second fixing shaft is released from at least one of the boom housing and the boom bracket when the rotation cam is in the second position in accordance with the rotation of the rotation cam.
The boom bracket according to claim 2, wherein the boom bracket

Further comprising a cam operation knob which is exposed to the outside of the boom bracket so as to allow the user to rotate the rotation cam and coaxially positioned with the rotation cam.
The boom according to claim 3, wherein the boom bracket

Further comprising an elastic member for providing an elastic restoring force to the second fixing shaft when the rotation cam is in the first position or the second position.
The boom bracket according to claim 4, wherein the boom bracket

Further comprising a stopper for restricting rotation of the rotation cam,

And the rotation of the rotation cam is restricted by engaging the protrusion formed on the long axis of the rotation cam with the stopper when the rotation cam is in the second position.
The boom bracket according to claim 2, wherein the boom bracket

A circular opening for receiving and mounting the boom rod; And

And a housing coupling portion mounted with the rotation cam and coupled to the boom housing by the first and second stationary shafts.
The boom according to claim 1, wherein the boom housing

A lock lever operable by a user to move between a first position where the first fixing shaft is inserted together with the boom bracket and the boom housing and a second position where the first fixing shaft is released from the boom bracket And a boom coupling device for an unmanned aerial vehicle.
8. The locking device according to claim 7, wherein the lock lever

A rotating shaft for rotating the lock lever within a predetermined range when the user presses the lock lever; And

And the first fixing shaft moving between the first position and the second position in accordance with the rotation of the rotation shaft.
The locking lever according to claim 8, wherein the lock lever

Elastic member; And

Further comprising a guide bar located on the opposite side of the first fixing shaft with respect to the rotation axis in the lock lever and being provided with an elastic restoring force by the elastic member when the user pushes the lock lever, .
10. The boom according to claim 9, wherein the boom housing

Two side wall plates and an upper plate connecting the side wall plates,

Wherein the boom bracket is formed with a front opening and a lower opening so that the boom bracket can freely rotate within a predetermined angle range with respect to the boom housing.
11. The locking device of claim 10, wherein the lock lever

And is installed in a seating groove formed in each of the two side wall plates.
11. The locking device of claim 10, wherein the lock lever

And is installed in a seating groove formed in the upper plate.
3. The method of claim 2,

Wherein when the insertion of the first fixing shaft is released, the intermediate connector is detached from the external connector.
14. The method of claim 13,

Wherein the boom bracket is provided with first and second through holes, third and fourth through holes are formed in the boom housing,

Wherein the first fixing shaft can be inserted into the first through hole and the third through hole and the second fixing shaft can be inserted into the second through hole and the fourth through hole, Coupling device.
15. The connector according to claim 14, wherein the fourth through-hole

And a through slot extending from the main body in the direction of the boom rods.
16. The method of claim 15,

And when the insertion of the first fixing shaft is released, the second fixing shaft is movable in a direction away from the main body along the slot.
15. The method of claim 14,

The boom housing including a lock lever,

Wherein the lock lever comprises: a rotating shaft for rotating the lock lever within a predetermined range when the user presses the lock lever; And the first stationary shaft moving between the first position and the second position in accordance with the rotation of the rotation shaft,

Wherein the first through hole is a slot extending in the up-and-down direction to secure a clearance according to the rotation when the first fixing shaft is inserted.
The method according to claim 1,

Wherein the boom rod is inserted into the boom bracket and fixed to the boom bracket by insertion of a fastener.
A wing section for providing a flight power of the unmanned aerial vehicle;

A body of the unmanned aerial vehicle; And

And a boom connecting device for connecting the wing portion to the main body,

The boom connecting device for an unmanned aerial vehicle,

An external connector electrically connected to the main body;

An intermediate connector detachably coupled to the external connector and providing power to the wing;

A boom housing mounted on the main body;

A boom bracket coupled to the boom housing by insertion of first and second stationary shafts located at different points and receiving the intermediate connector; And

And a boom rod extending from the boom bracket and connected to the wing portion,

When the insertion of the first fixing shaft is released, the boom bracket is rotatable with respect to the second fixing shaft, and further, when the insertion of the second fixing shaft is released, the boom bracket is separated from the boom housing Enabled, unmanned aerial vehicles.
20. The method of claim 19,

Wherein the boom coupling device for a unmanned aerial vehicle is of a plurality of numbers and mounted on the main body in a symmetrical radial manner with respect to the main body.