Quick release connecting device for horizontal tail of unmanned aerial vehicle

Abstract

The invention discloses a quick-release connecting device for a horizontal tail wing of an unmanned aerial vehicle. The quick-release connecting device comprises a ball head connecting piece, a connecting shaft, a guide plate and a tail wing connecting bracket, the invention relates to the field of unmanned aerial vehicle connecting devices, in particular to a quick release connecting device for a horizontal tail of an unmanned aerial vehicle. In order to solve the problems that a fixed connection mode of an unmanned aerial vehicle is low in mounting and dismounting efficiency and a fuselage and an empennage are easy to damage when the empennage is impacted, a plug-in type quick dismounting mode is adopted, so that plug-in mounting and dismounting separation of the fuselage and the empennage of the unmanned aerial vehicle are more efficient and quicker, and the empennage and the fuselage can be actively separated when the empennage is impacted; the damage to the fuselage and the empennage is reduced; if the torsion between the empennage and the fuselage is too large, the breakage of the empennage connecting bracket replaces the damage of the fuselage and the empennage, so that the loss is reduced to the minimum; according to the connecting device, the overall safety and economical efficiency of the unmanned aerial vehicle are taken into account while quick assembly and disassembly and firm connection are achieved.

Description

Technical Field

[0001] The present invention relates to the field of UAV connection devices, and specifically to a quick-release connection device for the horizontal tail of a UAV. Background Art

[0002] For the convenience of storage and transportation, wings and other parts of UAVs are often designed to be detachable or foldable to reduce the packing size.

[0003] The horizontal tail of a UAV is used to control the pitching attitude of the UAV. The connection device between the horizontal tail and the UAV fuselage can be fixed or detachable.

[0004] The horizontal tails of UAVs are mainly divided into two categories: fully movable horizontal tails and horizontal tails composed of a fixed horizontal stabilizer and a deflectable elevator.

[0005] When a UAV lands by taxiing, if the tail touches the ground first, it is easy to cause the fuselage or tail to break. Summary of the Invention

[0006] The purpose of the present invention is to provide a quick-release connection device for the horizontal tail of a UAV, which solves the problems that the disassembly and installation of the horizontal tail are time-consuming and laborious, and the fuselage or tail is easy to break when the tail touches the ground first.

[0007] To achieve the above purpose, an embodiment of the present invention provides a quick-release connection device for the horizontal tail of a UAV, including: a ball head connector, a connecting shaft, a guide plate, and a tail wing connection bracket.

[0008] The ball head connector includes a cylindrical end, a hemispherical end, a first mounting hole, and a first limiting groove.

[0009] The guide plate includes a second mounting hole in the middle and a fifth mounting hole at one end.

[0010] The tail wing connection bracket includes a fixing plate, a first clamping arm, a second clamping arm, a third mounting hole, a fourth mounting hole, and a second limiting groove; wherein, the first clamping arm includes a first clamping hole, and the second clamping arm includes a second clamping hole.

[0011] Preferably, the cylindrical end of the ball head connector is fixed on the UAV fuselage, the guide plate is placed in the first limiting groove, the connecting shaft is passed through the first mounting hole of the ball head connector and the second mounting hole of the guide plate, and the connecting shaft is fixed in the first mounting hole of the ball head connector; the guide plate is connected to the servo that controls the pitching of the UAV tail wing by connecting the fifth mounting hole.

[0012] Preferably, at the positions of the third mounting hole and the fourth mounting hole, the fixing plate of the tail wing connection bracket is mounted on the horizontal tail wing of the drone with screws. One end of the guiding plate without the fifth mounting hole is inserted into the second limiting groove of the tail wing connection bracket. The first clamping arm and the second clamping arm of the tail wing connection bracket are inserted on the connecting shaft, and the connecting shaft is located at the positions of the first clamping hole and the second clamping hole, so that the horizontal tail wing of the drone is connected to the fuselage. By controlling the rotation of the guiding plate around the connecting shaft, the tail wing connection bracket is driven to rotate around the connecting shaft, and the horizontal tail wing of the drone fixed together with the tail wing connection bracket rotates around the connecting shaft.

[0013] Compared with the fixed connection method, the embodiment of the present invention has the following beneficial effects: A quick-release connection device for the horizontal tail wing of a drone includes: a ball head connector, a connecting shaft, a guiding plate, and a tail wing connection bracket; the cylindrical end of the ball head connector is fixed on the fuselage of the drone, and the tail wing connection bracket is mounted on the horizontal tail wing of the drone; during connection, the tail wing connection bracket is connected to the connecting shaft mounted on the ball head connector in a plug-in manner to achieve quick connection between the horizontal tail wing and the fuselage; during disassembly, the connecting shaft is pulled out of the tail wing connection bracket to achieve quick separation between the horizontal tail wing and the fuselage; the structure of the present invention is simple, the fuselage and the horizontal tail wing of the drone are connected through the ball head connector, the connecting shaft, and the tail wing connection bracket, and the pitch angle of the horizontal tail wing is controlled through the guiding plate; compared with the traditional fixed connection method, the plug-in installation and disassembly separation are more efficient and fast; at the same time, when the tail wing of the drone touches the ground first and the force on the tail wing of the drone increases sharply, which may cause damage to the drone, the tail wing connection bracket and the connecting shaft can be instantly separated to reduce damage to the tail wing; in special cases, if the torsion between the tail wing and the fuselage is too large, that is, the torsion between the tail wing connection bracket and the connecting shaft is too large, the first clamping arm and the second clamping arm of the tail wing connection bracket will be partially or completely broken, so that the tail wing and the fuselage are separated in time to protect the tail wing and the fuselage. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The present invention will be further described below with reference to the drawings and embodiments.

[0015] Figure 1 Shows a three-dimensional view of a quick-release connection device for the horizontal tail wing of the present invention;

[0016] Figure 2 Shows a three-dimensional view of the ball head connector, the connecting shaft, and the guiding plate of the present invention;

[0017] Figure 3 Shows a three-dimensional view of the ball head connector of the present invention;

[0018] Figure 4 Shows a three-dimensional view of the connecting shaft of the present invention;

[0019] Figure 5 Shows a perspective view of the guide plate of the present invention;

[0020] Figure 6 Shows a perspective view of the fin connection bracket of the present invention.

[0021] In the figure: 1, ball head connector; 11, cylindrical end; 12, hemispherical end; 121, mounting hole one; 122, limiting groove one; 2, connecting shaft; 3, guide plate; 31, mounting hole two; 32, mounting hole five; 4, fin connection bracket; 41, fixing plate; 411, mounting hole three; 412, mounting hole four; 413, limiting groove two; 42, clamping arm one; 421, clamping hole one; 43, clamping arm two; 431, clamping hole two. Detailed implementation manners

[0022] The present invention will be further described in detail below with reference to the accompanying drawings.

[0023] An embodiment of the present invention provides a quick-release connection device for the horizontal tail fin of a drone, as Figures 1 to 6 shown, including: a ball head connector 1, a connecting shaft 2, a guide plate 3, and a fin connection bracket 4;

[0024] As Figures 2 to 3 shown, the ball head connector 1 includes a cylindrical end 11, a hemispherical end 12, a mounting hole one 121, and a limiting groove one 122.

[0025] As Figure 5 shown, the guide plate 3 includes a mounting hole two 31 and a mounting hole five 32.

[0026] As Figure 6 shown, the fin connection bracket 4 includes a fixing plate 41, a mounting hole three 411, a mounting hole four 412, a limiting groove two 413, a clamping arm one 42, and a clamping arm two 43; wherein, a clamping hole one 421 is provided in the middle of the clamping arm one 42, and a clamping hole two 431 is provided in the middle of the clamping arm two 43.

[0027] Preferably, as Figures 1 to 3 shown, the guide plate 3 is placed in the limiting groove one 122 on the hemispherical end 12 of the ball head connector 1, and the mounting hole two 31 of the guide plate 3 is aligned with the mounting hole one 121, the connecting shaft 2 is passed through the mounting hole one 121 of the ball head connector 1 and the mounting hole two 31 of the guide plate 3, and the connecting shaft 2 is fixed in the mounting hole one 121 of the ball head connector 1; the diameter of the connecting shaft 2 is the same as the inner diameter of the mounting hole one 121, and the lengths of the two ends of the connecting shaft 2 exposed outside the mounting hole one 121 are the same.

[0028] Preferably, as Figure 6As shown, use screws to install the fixed plate 41 of the tail wing connection bracket 4 on the horizontal tail wing of the drone at the positions of the third mounting hole 411 and the fourth mounting hole 412 of the tail wing connection bracket 4;

[0029] Preferably, as Figures 1 to 2 shown, during connection, insert the end of the guide plate 3 without the fifth mounting hole 32 into the second limiting groove 413 of the tail wing connection bracket 4; insert the first clamping arm 42 and the second clamping arm 43 of the tail wing connection bracket 4 onto the parts of both ends of the connecting shaft 2 that are exposed from the first mounting hole 121, so that the connecting shaft 2 is located at the positions of the first clamping hole 421 and the second clamping hole 431, and connect the tail wing connection bracket 4, the horizontal tail wing of the drone and the fuselage. Among them, the tail wing connection bracket 4 is made of a lightweight and strong material with a certain elasticity. The first clamping arm 42 and the second clamping arm 43 on it can open a certain amplitude during the process of being inserted into the connecting shaft 2. When both ends of the connecting shaft 2 reach the positions of the first clamping hole 421 and the second clamping hole 431, they return to their original state and clamp the connecting shaft 2, playing a role in connecting and fixing the tail wing; during disassembly, operate in the reverse direction to quickly separate the tail wing from the fuselage and achieve quick loading and unloading. It should be noted that the material used for the tail wing connection bracket 4 can be selected but is not limited to nylon material, and the guide plate 3 can be selected but is not limited to carbon fiber material.

[0030] Preferably, connect the guide plate 3 to the servo that controls the pitch of the tail wing on the drone through the fifth mounting hole 32, control the guide plate 3 to rotate around the connecting shaft 2, drive the tail wing connection bracket 4 and the horizontal tail wing of the drone fixed to the tail wing connection bracket 4 to rotate around the connecting shaft 2, so as to achieve the purpose that the servo that controls the pitch of the tail wing on the drone can control the movement of the horizontal tail wing.

[0031] In summary, compared with the fixed connection method, the embodiments of the present invention have the following beneficial effects: The connection device adopts a plug-in quick-release method, making the plug-in installation and disassembly separation of the drone fuselage and the tail more efficient and rapid; the connection device has a simple structure, with a part fixed on the fuselage and a part fixed on the horizontal tail. By plugging the horizontal tail and the fuselage, it is possible to achieve quick installation and separation of the horizontal tail and the fuselage while taking into account the connection reliability; in addition, when the drone tail hits the ground first and is impacted, the force on the drone tail increases sharply, which may cause damage to the drone. At this time, the tail wing connection bracket 4 and the connection shaft 2 can be instantly disengaged to reduce damage to the tail wing and the fuselage. It should be noted that since the cost of the tail wing connection bracket 4 is only one-tenth to one-fortieth of the cost of the fuselage and the tail wing, in special cases, when the tail of the plane hits the ground and is impacted, if the torsion between the tail wing and the fuselage is too large, that is, the torsion between the tail wing connection bracket 4 and the connection shaft 2 is too large, the clamping arm one 42 and the clamping arm two 43 of the tail wing connection bracket 4 will be partially or completely broken, so that the tail wing and the fuselage can be separated in time, that is, the breakage of the tail wing connection bracket 4 is used to replace the damage of the fuselage and the tail wing to protect the tail wing and the fuselage and minimize the loss. Therefore, while the connection device realizes quick loading and unloading and reliable connection, it also takes into account the overall safety and economy of the drone.

Claims

1. A quick-release connection device for the horizontal tail of a drone, characterized in that: It includes a ball head connector, a connecting shaft, a guide plate, and a tail wing connecting bracket.

2. The quick-release connection device for the horizontal tail of an unmanned aerial vehicle according to claim 1, characterized in that: The ball head connector includes a cylindrical end, a hemispherical end, a first mounting hole, and a first limiting groove.

3. The quick-release connection device for the horizontal tail of an unmanned aerial vehicle according to claim 1, characterized in that: The guide plate includes a second mounting hole and a fifth mounting hole.

4. The quick-release connection device for the horizontal tail of an unmanned aerial vehicle according to claim 1, characterized in that: The tail wing connecting bracket includes a first clamping arm, a second clamping arm, a third mounting hole, a fourth mounting hole, and a second limiting groove.

5. The quick-release connection device for the horizontal tail of an unmanned aerial vehicle according to claim 4, characterized in that: The first clamping arm includes a first clamping hole, and the second clamping arm includes a second clamping hole.

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