Empennage structure of unmanned aerial vehicle

Abstract

The invention discloses an unmanned aerial vehicle empennage structure, which belongs to the technical field of unmanned aerial vehicle empennages and comprises a connecting rod, a vertical empennage and two horizontal empennages, a horizontal connecting pipe mounting hole and a vertical connecting rod mounting hole are formed in the connecting rod; a horizontal empennage mounting plate is arranged on the horizontal empennage; a third positioning hole and a horizontal connecting pipe through hole are formed in the horizontal empennage mounting plate; a vertical empennage mounting plate is arranged on the vertical empennage, and a vertical connecting pipe via hole is formed in the vertical empennage mounting plate; a connecting seat is arranged on the vertical empennage mounting plate, and a connecting seat connecting hole is formed in the connecting seat. The connecting rod and the vertical empennage are connected through the vertical connecting pipe, the connecting rod and the two horizontal empennages are connected through the horizontal connecting pipe, the effect that three empennages are fixed through one shaft is achieved through the connecting pin shaft, and the vertical empennages and the horizontal empennages can be conveniently disassembled and assembled. The whole structure is simple, disassembly and assembly are convenient, disassembly, assembly and maintenance are convenient, and the bearing performance and light weight of the empennage of the unmanned aerial vehicle can be well considered.

Description

Technical Field

[0001] The present invention belongs to the technical field of UAV tails, and specifically relates to a UAV tail structure. Background Art

[0002] An unmanned aerial vehicle (UAV) is an unpiloted aircraft, usually controlled by radio remote control equipment or an in-built program control device. The UAV system combines the technologies of robotics and aeronautics and can perform various complex aerial tasks. There are various types of UAVs, including fixed-wing UAVs, rotary-wing UAVs (such as multi-rotor UAVs), unmanned airships, etc.

[0003] The tail of a UAV is an important part of the flight stability and controllability of the UAV, usually consisting of a horizontal tail and a vertical tail. The horizontal tail is mainly used to maintain the pitch balance of the UAV during flight, while the vertical tail is responsible for maintaining the direction balance.

[0004] There are various design forms of tails. Common ones include conventional tails, V-shaped tails, and inverted V-shaped tails, etc. A conventional tail includes an independent horizontal tail and a vertical tail, which are respectively used for pitch and direction control. The V-shaped tail combines the functions of the horizontal tail and the vertical tail. When the two rudder surfaces deflect in the same direction, it acts as an elevator; when they deflect in different directions respectively, it acts as a rudder. The inverted V-shaped tail improves the aerodynamic efficiency of the UAV by reducing the wetted area and interference drag, and is especially suitable for pusher propeller UAVs.

[0005] The traditional UAV tail structure is complex and cumbersome to disassemble and assemble, and it is impossible to achieve convenient maintenance of the UAV tail. Moreover, to ensure its strong structural performance, it is usually heavy, and it is impossible to achieve a good balance between load-bearing performance and lightweight design. Summary of the Invention

[0006] To solve the problems that the traditional UAV tail structure is complex and cumbersome to disassemble and assemble, it is impossible to achieve convenient maintenance of the UAV tail, and to ensure its strong structural performance, it is usually heavy, and it is impossible to achieve a good balance between load-bearing performance and lightweight design, the present invention provides a UAV tail structure.

[0007] The present invention is realized by the following technical solutions: A UAV tail structure includes a rectangular tubular connecting rod, a vertical tail, and two horizontal tails; corresponding horizontal connecting pipe mounting holes and corresponding first pin holes are provided on the left and right sides of the tail of the connecting rod, and a vertical connecting rod mounting hole and a second pin hole are provided on the upper side of the tail of the connecting rod; On one side of the horizontal stabilizer close to the connecting rod, a horizontal stabilizer mounting plate is connected and installed. The horizontal stabilizer mounting plate is provided with a third positioning hole, a horizontal connecting pipe through hole corresponding to the horizontal connecting pipe mounting hole, and a first positioning hole corresponding to the first pin hole. A horizontal connecting pipe passing through the horizontal connecting pipe through hole and connected to the horizontal stabilizer is inserted into the horizontal connecting pipe mounting hole, and a first pin inserted and positioned with the first pin hole is inserted into the first positioning hole. On one side of the vertical stabilizer close to the connecting rod, a vertical stabilizer mounting plate is connected and installed. The vertical stabilizer mounting plate is provided with a vertical connecting pipe through hole corresponding to the vertical connecting rod mounting hole and a second positioning hole corresponding to the second pin hole. A vertical connecting pipe passing through the vertical connecting pipe through hole and connected to the vertical stabilizer is inserted into the vertical connecting rod mounting hole, and a second pin inserted and positioned with the second pin hole is inserted into the second positioning hole. A connection seat is connected and installed on the vertical stabilizer mounting plate, and a connection seat connection hole connected to the third positioning hole is provided on the connection seat.

[0008] A further improvement of the present invention is that a limiting groove capable of clamping and positioning the vertical connecting pipe is provided on the connection seat.

[0009] A further improvement of the present invention is that a number of vertically penetrating slots are provided on the connection seat.

[0010] A further improvement of the present invention is that a first limiting ring for positioning is connected and installed on the horizontal connecting pipe; a second limiting ring for positioning is connected and installed on the vertical connecting pipe.

[0011] A further improvement of the present invention is that an elevator is connected and installed at the rear of the horizontal stabilizer through a hinge. A first connecting frame is connected and installed on the elevator, a first servo is connected and installed on the horizontal stabilizer, and the rocker arm of the first servo is connected to the first connecting frame through a first connecting rod.

[0012] A further improvement of the present invention is that a rudder is connected and installed at the rear of the vertical stabilizer through a hinge. A second connecting frame is connected and installed on one side of the rudder, a second servo is connected and installed on the vertical stabilizer, and the rocker arm of the second servo is connected to the second connecting frame through a second connecting rod.

[0013] A further improvement of the present invention is that hinge connection seats for fixed connection are connected and installed at both ends of the hinge.

[0014] A further improvement of the present invention is that a second insertion hole is provided on the upper side of the tail of the connecting rod, and a second through hole corresponding to the second insertion hole is provided on the vertical stabilizer mounting plate; first insertion holes are provided on the left and right sides of the tail of the connecting rod, and first through holes corresponding to the first insertion holes are provided on the horizontal stabilizer mounting plate.

[0015] A further improvement of the present invention is that operation holes corresponding to the vertical connecting pipe are provided on the left and right side surfaces of the tail of the connecting rod.

[0016] A further improvement of the present invention is that a number of first through holes are spaced apart on each surface of the connecting rod.

[0017] As can be seen from the above technical solutions, the beneficial effects of the present invention are as follows: The connecting rod is connected to the vertical tail through the vertical connecting pipe, which bears the bending moment and torque of the vertical tail. The second pin passes through the second positioning hole on the vertical tail mounting plate and is inserted into the second pin hole for positioning, realizing the precise and reliable installation of the vertical tail. A horizontal connecting pipe connects the connecting rod with two horizontal tails, bearing the bending moment and torque of the horizontal tails. The connecting pin shaft passes through the third positioning holes on the two horizontal tail mounting plates and is connected to the connection hole of the adapter seat. The first pin passes through the second positioning hole on the horizontal tail mounting plate and is inserted into the first pin hole for positioning, realizing the precise and reliable installation of the two horizontal tails. Through the connecting pin shaft, "one shaft fixes three tails" can be achieved, and the convenient disassembly and assembly of the vertical tail and horizontal tails can be realized. The overall structure is simple and easy to disassemble and assemble, facilitating disassembly, inspection and repair. The connecting rod, horizontal connecting pipe and vertical connecting pipe made of rectangular pipes are used as load-bearing components. The connection between the vertical tail and the horizontal tails is reliable, and the good balance between the load-bearing performance and lightweight of the UAV tail can be achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the present invention, the drawings required for description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0019] Figure 1 It is a schematic diagram of the first perspective structure of the specific embodiment of the present invention.

[0020] Figure 2 It is a schematic diagram of the second perspective structure of the specific embodiment of the present invention.

[0021] Figure 3 It is a schematic diagram of the connecting rod structure of the specific embodiment of the present invention.

[0022] Figure 4 It is a schematic diagram of the first perspective structure of the horizontal tail of the specific embodiment of the present invention.

[0023] Figure 5 It is a schematic diagram of the second perspective structure of the horizontal tail of the specific embodiment of the present invention.

[0024] Figure 6 It is a schematic diagram of the connection between the horizontal connecting pipe and the horizontal tail of the specific embodiment of the present invention.

[0025] Figure 7Schematic diagram of the assembly of the vertical fin and the connecting rod according to the specific embodiment of the present invention.

[0026] Figure 8 Schematic diagram of the structure of the vertical fin from the first perspective according to the specific embodiment of the present invention.

[0027] Figure 9 Schematic diagram of the installation structure of the connection seat according to the specific embodiment of the present invention.

[0028] Figure 10 Schematic diagram of the structure of the vertical fin from the second perspective according to the specific embodiment of the present invention.

[0029] In the drawings: 1. Connecting rod, 11. First through hole, 12. Horizontal connecting pipe installation hole, 13. Vertical connecting rod installation hole, 14. Second insertion hole, 15. First insertion hole, 16. Second pin hole, 17. First pin hole, 18. Operation hole, 2. Horizontal fin, 21. Elevator, 22. First servo, 23. First connecting rod, 24. First connecting frame, 25. First cross beam, 26. First servo mounting plate, 27. First notch, 28. First wing rib, 29. First cantilever, 210. First base body of the horizontal fin, 211. Second base body of the horizontal fin, 212. Second through hole, 213. Horizontal connecting pipe, 214. First limiting ring, 3. Vertical fin, 31. Rudder, 32. Second servo, 33. Second connecting rod, 34. Second connecting frame, 35. Second cross beam, 36. Second servo mounting plate, 37. Second notch, 38. Second wing rib, 39. Second cantilever, 310. First base body of the vertical fin, 311. Second base body of the horizontal fin, 312. Vertical connecting pipe, 313. Second limiting ring, 4. Horizontal fin mounting plate, 41. Horizontal connecting pipe through hole, 42. First positioning hole, 43. Third positioning hole, 44. First through hole, 45. Padding plate, 5. Vertical fin mounting plate, 51. Vertical connecting pipe through hole, 52. Second positioning hole, 53. Second through hole, 6. Connection seat, 61. Connection seat connection hole, 62. Limiting groove, 63. Vertical groove, 7. Hinge, 71. Hinge connection seat, 8. Support seat. Specific embodiment

[0030] To make the objectives, features, and advantages of the present invention more obvious and understandable, the technical solutions in the present invention will be clearly and completely described below with reference to the drawings in the specific embodiments of the present invention. Obviously, the embodiments described below are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments in this patent, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of protection of this patent.

[0031] As Figures 1-10As shown in the figure, the present invention discloses a drone tail structure, which includes a rectangular tubular connecting rod 1, a vertical tail 3 and two horizontal tails 2; on the left and right sides of the tail of the connecting rod 1, there are horizontally corresponding horizontal connecting pipe mounting holes 12 and horizontally corresponding first pin holes 17. On the upper and lower sides of the tail of the connecting rod 1, there are vertical connecting rod mounting holes 13. On the upper side of the tail of the connecting rod 1, there is a second pin hole 16; On the side (inner side) of the horizontal tail 2 close to the connecting rod 1, a horizontal tail mounting plate 4 is connected and installed. On the horizontal tail mounting plate 4, there are a third positioning hole 43, a horizontal connecting pipe through hole 41 corresponding to the horizontal connecting pipe mounting hole 12, and a first positioning hole 42 corresponding to the first pin hole 17; A horizontal connecting pipe 213 that penetrates (positioning connection) the horizontal connecting pipe through hole 41 and is (positioned) connected to the horizontal tail 2 is inserted (positioning connection) into the horizontal connecting pipe mounting hole 12, and a first pin that is positioned and inserted into the first pin hole 17 is inserted into the first positioning hole 42; On the side (lower side) of the vertical tail 3 close to the connecting rod 1, a vertical tail mounting plate 5 is connected and installed. On the vertical tail mounting plate 5, there are a vertical connecting pipe through hole 51 corresponding to the vertical connecting rod mounting hole 13 and a second positioning hole 52 corresponding to the second pin hole 16; A vertical connecting pipe 312 that penetrates (positioning connection) the vertical connecting pipe through hole 51 and is (positioned) connected to the vertical tail 3 is inserted (positioning connection) into the vertical connecting rod mounting hole 13, and a second pin that is positioned and inserted into the second pin hole 16 is inserted into the second positioning hole 52; A connecting seat 6 is fixedly connected and installed on the vertical tail mounting plate 5. On the connecting seat 6, there is a connecting seat connection hole 61 corresponding to the third positioning hole 43, and it is connected and installed through a connecting pin shaft.

[0032] The connecting rod 1 and the vertical tail 3 are connected through the vertical connecting pipe 312 to bear the bending moment and torque of the vertical tail 3. The second pin passes through the second positioning hole 52 on the vertical tail mounting plate 5 and is positioned and inserted into the second pin hole 16 to achieve the precise and reliable installation of the vertical tail 3; The connecting rod 1 and the two horizontal tails 2 are connected through a horizontal connecting pipe 213 to bear the bending moment and torque of the horizontal tails 2. The connecting pin shaft passes through the third positioning hole 43 on the two horizontal tail mounting plates 4 and is connected and installed with the connecting seat connection hole 61. The first pin passes through the second positioning hole 42 on the horizontal tail mounting plate 4 and is positioned and inserted into the first pin hole 17 to achieve the precise and reliable installation of the two horizontal tails 2. Through the connecting pin shaft, "one shaft fixes three tails" can be realized, and the vertical tail 3 and the horizontal tails 2 can be conveniently disassembled and assembled. The overall structure is simple and easy to disassemble and assemble, facilitating disassembly and maintenance. The rectangular tube connecting rod 1, the horizontal connecting pipe 213, and the vertical connecting pipe 312 are used as load-bearing components, and the vertical tail 3 and the horizontal tails 2 are reliably connected, achieving a good balance between the load-bearing performance and lightweight of the drone tail.

[0033] Among them, the horizontal connecting pipe 213 and the vertical connecting pipe 312 are made of carbon fiber pipes, and sleeves are sleeved outside them, achieving strong load-bearing performance and effectively reducing their own weight.

[0034] Among them, the connecting rod 1 is made of a lightweight metal material, and a number of elliptical first through holes 11 are spaced apart on each of its surfaces. And the first through holes 11 on the four surfaces correspond to each other, effectively realizing lightweight design, and convenient and hidden wiring can be realized inside the connecting rod 1. The internal wiring can be bundled and fixed through the first through holes 11 to ensure the reliability of the wiring.

[0035] Among them, as Figures 8-10 shown, the connection seat 6 is arranged at the rear side of the vertical connecting pipe 312, and a limiting groove 62 with an arc-shaped groove structure for clamping and positioning the vertical connecting pipe 312 is arranged on the front side of the connection seat 6, effectively realizing reliable connection and limiting between the connection seat 6 and the horizontal connecting pipe 213, and ensuring the reliable stability of the connection.

[0036] Furthermore, as Figure 10 shown, a number of vertical grooves 63 penetrating left and right are arranged on the connection seat 6. The connection seat 6 is formed by 3D printing. The design of the vertical grooves 63 can reduce its own weight and improve its own structural strength.

[0037] Furthermore, as Figure 7 、 9 shown, a backing plate 45 is provided on the horizontal tail fin mounting plate 4 (outside the third positioning hole 43) to realize the reliable connection and installation of the connecting pin shaft to the connection seat 6 and the two horizontal tail fin mounting plates 4.

[0038] Furthermore, as Figure 10 shown, the connection seat connection hole 61 is in the shape of a long hole in the front-back direction, effectively compensating for the assembly error between the connecting pin shaft and the connection seat connection hole 61, enabling the vertical tail fin 3 to deflect 2-3 degrees along the vertical axis to compensate for the single-engine gyroscopic precession effect.

[0039] Among them, a first limiting ring 214 for positioning is connected and installed on the horizontal connecting pipe 213, and is fixed (adhesively bonded) to the horizontal connecting pipe 213 through the first limiting ring 214, and clamps (adhesively bonded) and positions the left and right side walls of the connecting rod 1, the horizontal tail fin mounting plate 4, and the cross beam (the first cross beam 25 on the inner side) of the horizontal tail fin 2, realizing the reliable and stable connection and installation of the horizontal connecting pipe 213; a second limiting ring 313 for positioning is connected and installed on the vertical connecting pipe 312, and is fixed (adhesively bonded) to the vertical connecting pipe 312 through the second limiting ring 313, and clamps (adhesively bonded) and positions the upper and lower walls of the connecting rod 1, the vertical tail fin mounting plate 5, and the cross beam (the second cross beam 35 on the lower side) of the vertical tail fin 3, realizing the reliability of the connection and installation of the vertical connecting pipe 312.

[0040] Furthermore, operation holes 18 corresponding to the vertical connecting pipe 312 are provided on the left and right side surfaces of the tail of the connecting rod 1. The arrangement of the operation holes 18 enables the convenient bonding and fixing of the second limiting ring 313 inside the connecting rod 1.

[0041] Among them, as Figures 4-6 shown, the rear part of the horizontal tail fin 2 is rotatably connected and installed with an elevator 21 through two hinges 7. A first connecting frame 24 is connected and installed on the upper side of the elevator 21. A first servo 22 is connected and installed on the horizontal tail fin 2. The rocker arm of the first servo 22 is connected to the first connecting frame 24 through a first connecting rod 23. By driving the first connecting rod 23 with the first servo 22, the rotation adjustment of the elevator 21 can be realized to achieve the lifting operation.

[0042] Furthermore, the horizontal tail fin 2 includes a first horizontal tail fin base body 210 at the front part and a second horizontal tail fin base body 211 at the rear part; the inner sides of the first horizontal tail fin base body 210 and the second horizontal tail fin base body 211 are connected by a horizontal tail fin mounting plate 4, the outer sides are connected by a hollow first wing rib 28, the middle parts are connected by two hollow first cross beams 25, a first servo mounting plate 26 is connected and installed between the upper edges of the two first cross beams 25. Two first cantilevers 29 are installed on the lower side of the first servo mounting plate 26 for positioning and installing the first servo 22. A long strip-shaped first notch 27 in the front-rear direction is provided on the first servo mounting plate 26 for the rocker arm of the first servo 22 to extend upward and be rotatably connected to the first connecting rod 23. The horizontal tail fin 2 has high structural strength and light weight. The first servo 22 is installed stably and reliably, and the first servo 22 is protected by the first servo mounting plate 26 and the two first cross beams 25.

[0043] Furthermore, a number of second through holes 212 are spacedly provided on the rear side surface of the first horizontal tail fin base body 210. To achieve lightweight design.

[0044] Among them, as Figures 7-10 shown, the rear part of the vertical tail fin 3 is rotatably connected and installed with a rudder 31 through two hinges 7. A second connecting frame 34 is connected and installed on one side of the rudder 31. A second servo 32 is connected and installed on the vertical tail fin 3. The rocker arm of the second servo 32 is connected to the second connecting frame 34 through a second connecting rod 33. By driving the second connecting frame 34 with the second servo 32, the rotation adjustment of the rudder 31 can be realized to achieve the steering operation.

[0045] Further, the vertical tail 3 includes a first matrix 310 of the vertical tail at the front and a second matrix 311 of the horizontal tail at the rear. The lower sides of the first matrix 310 of the vertical tail and the second matrix 311 of the horizontal tail are connected by a vertical tail mounting plate 5, the upper sides are connected by a hollowed second wing rib 38, and the middle parts are connected by two hollowed second cross beams 35. A second servo mounting plate 36 is connected and installed between the right sides of the two second cross beams 35. Two second cantilevers 39 are installed on the left side of the second servo mounting plate 36 for positioning and installing the second servo 32. A second notch 37 in the shape of a long strip in the front-rear direction is formed on the second servo mounting plate 36 for the rocker arm of the second servo 32 to extend out and be rotatably connected to the second connecting rod 33. The vertical tail 3 has high structural strength and light weight, and the second servo 32 is reliably installed. The second servo 32 is reliably protected through the second servo mounting plate 36 and the two second cross beams 35.

[0046] Wherein, hinge connectors 71 for fixed connection are connected and installed at both ends of the hinge 7. The hinge connectors 71 are connected and installed inside the elevator 21 (rudder 31) and the second matrix 211 (second matrix 311) of the horizontal tail. Through the corresponding hinge connectors 71, the hinge 7 can be reliably connected and installed to ensure the reliability of the rotational connection of the elevator 21 and the rudder 31.

[0047] A support seat 8 corresponding to the first connecting frame 24 (second connecting frame 34) is positioned and installed inside the elevator 21 (rudder 31) to achieve the reliability of the connection and installation of the first connecting frame 24 (second connecting frame 34).

[0048] Wherein, a second insertion hole 14 is formed on the upper side of the tail of the connecting rod 1, and a second through hole 53 corresponding to the second insertion hole 14 is formed on the vertical tail mounting plate 5; first insertion holes 15 are formed on the left and right sides of the tail of the connecting rod 1, and first through holes 44 corresponding to the first insertion holes 15 are formed on the horizontal tail mounting plate 4. Quick plugs can be installed on the first through holes 44 and the second through holes 53. By inserting them into the corresponding second insertion hole 14 and first insertion hole 15, convenient and reliable electrical connection can be achieved to supply power to the servo.

[0049] Further, a number of spaced connection holes are respectively formed on the first connecting frame 24 (second connecting frame 34), and the first connecting rod 23 (second connecting rod 33) can be rotatably connected to different connection holes to achieve flexibility in use.

[0050] The tail wing structure of this unmanned aerial vehicle (UAV) connects the connecting rod 1 and the vertical tail wing 3 through the vertical connecting pipe 312, bearing the bending moment and torque of the vertical tail wing 3. The second pin passes through the second positioning hole 52 on the vertical tail wing mounting plate 5 and is positioned and inserted into the second pin hole 16 to achieve the accurate and reliable installation of the vertical tail wing 3. A horizontal connecting pipe 213 connects the connecting rod 1 and the two horizontal tail wings 2, bearing the bending moment and torque of the horizontal tail wings 2. The connecting pin shaft passes through the third positioning hole 43 on the two horizontal tail wing mounting plates 4 and is connected and installed with the connecting hole 61 of the connection seat. The first pin passes through the second positioning hole 42 on the horizontal tail wing mounting plate 4 and is positioned and inserted into the first pin hole 17 to achieve the accurate and reliable installation of the two horizontal tail wings 2. The "one shaft fixes three wings" can be realized through the connecting pin shaft, and the convenient disassembly and assembly of the vertical tail wing 3 and the horizontal tail wings 2 can be achieved. The overall structure is simple and easy to disassemble and assemble, facilitating disassembly, inspection and repair. The rectangular pipe connecting rod 1, horizontal connecting pipe 213 and vertical connecting pipe 312 are used as load-bearing components. The connection between the vertical tail wing 3 and the horizontal tail wings 2 is reliable, and the good balance between the load-bearing performance and lightweight of the UAV tail wing can be achieved.

[0051] The various embodiments in this specification are described in a progressive manner. The key point of each embodiment is to illustrate the differences from other embodiments. For the same or similar parts among the various embodiments, reference can be made to each other.

[0052] The terms "upper", "lower", "outer side", "inner side", etc. in the specification, claims and above-mentioned drawings of the present invention, if any, are used to distinguish the relative relationship in position and do not need to be qualitatively defined. It should be understood that such used data can be interchanged under appropriate circumstances so that the embodiments of the present invention described here can be implemented in an order different from those illustrated or described here. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion.

[0053] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be obvious to those skilled in the art. The general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A UAV tail structure, characterized in that: It comprises a rectangular tubular connecting rod (1), a vertical tail (3) and two horizontal tails (2); the connecting rod (1) has corresponding horizontal connecting tube mounting holes (12) and corresponding first pin holes (17) on the left and right sides of the tail, and the connecting rod (1) has a vertical connecting rod mounting hole (13) and a second pin hole (16) on the upper side of the tail; A horizontal tail wing mounting plate (4) is connected and mounted on one side of the horizontal tail wing (2) close to the connecting rod (1); the horizontal tail wing mounting plate (4) is provided with a third positioning hole (43), a horizontal connecting pipe through hole (41) corresponding to the horizontal connecting pipe mounting hole (12), and a first positioning hole (42) corresponding to the first pin hole (17); a horizontal connecting pipe (213) penetrating the horizontal connecting pipe through hole (41) and connected to the horizontal tail wing (2) is inserted into the horizontal connecting pipe mounting hole (12); a first pin is inserted into the first positioning hole (42) and positioned with the first pin hole (17); A vertical tail wing mounting plate (5) is connected and mounted on one side of the vertical tail wing (3) close to the connecting rod (1); a vertical connecting pipe through hole (51) corresponding to the vertical connecting rod mounting hole (13) and a second positioning hole (52) corresponding to the second pin hole (16) are formed on the vertical tail wing mounting plate (55); a vertical connecting pipe (312) penetrating the vertical connecting pipe through hole (51) and connected to the vertical tail wing (3) is inserted into the vertical connecting rod mounting hole (13); a second pin is inserted into the second positioning hole (52) and positioned with the second pin hole (16); A connecting seat (6) is connected and mounted on the vertical tail wing mounting plate (5), and a connecting seat connecting hole (61) connected and mounted to the third positioning hole (43) is formed on the connecting seat (6).

2. The UAV tail structure according to claim 1, characterized in that: The connecting seat (6) is provided with a limiting groove (62) capable of clamping and positioning the vertical connecting pipe (312).

3. The UAV tail structure according to claim 1, characterized in that: The connecting seat (6) is provided with a plurality of vertical slots (63) extending from left to right.

4. The UAV tail structure according to claim 1, characterized in that: A first limiting ring (214) for positioning is connected and installed on the horizontal connecting pipe (213); and a second limiting ring (313) for positioning is connected and installed on the vertical connecting pipe (312).

5. The UAV tail structure according to claim 1, characterized in that: An elevator (21) is connected and installed at the rear of the horizontal tail (2) via a hinge (7); a first connecting frame (24) is connected and installed on the elevator (21); a first steering gear (22) is connected and installed on the horizontal tail (2); and a rocker arm of the first steering gear (22) is connected to the first connecting frame (24) via a first connecting rod (23).

6. The UAV tail structure according to claim 1, characterized in that: A rudder (31) is connected and installed at the rear of the vertical tail (3) via a hinge (7); a second connecting frame (34) is connected and installed at one side of the rudder (31); a second steering gear (32) is connected and installed on the vertical tail (3); and a rocker arm of the second steering gear (32) is connected to the second connecting frame (34) via a second connecting rod (33).

7. The UAV tail structure according to claim 5 or 6, characterized in that: Hinge connection seats (71) for fixed connection are installed at both ends of the hinge (7).

8. The UAV tail structure according to claim 1, characterized in that: A second plug hole (14) is provided on the upper side of the tail of the connecting rod (1), and a second through hole (53) corresponding to the second plug hole (14) is provided on the vertical tail mounting plate (5); first plug holes (15) are provided on the left and right sides of the tail of the connecting rod (1), and a first through hole (44) corresponding to the first plug hole (15) is provided on the horizontal tail mounting plate (4).

9. The UAV tail structure according to claim 4, characterized in that: Operation holes (18) corresponding to the vertical connection pipe (312) are provided on the left and right side surfaces of the rear end of the connection rod (1).

10. The UAV tail structure according to claim 1, characterized in that: A plurality of first through holes (11) are provided at intervals on each surface of the connecting rod (1).

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