Quick-release connecting device for all-moving horizontal tail of fixed-wing unmanned aerial vehicle
Through the combination of ball head connector, connecting shaft, guide plate and tail connection bracket, the quick disassembly and connection device of the horizontal tail of the fixed-wing drone is realized, solving the problem of time-consuming and labor-intensive disassembly of the tail wing and the tail wing breaking, and improving the drone Installation efficiency and safety while reducing cost loss.
Patent Information
- Application Number
- CN202323585638.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-27
- Publication Date
- 2024-12-27
- Estimated Expiration
- 2033-12-27
AI Technical Summary
The horizontal tail of the fixed-wing drone is time-consuming and laborious to disassemble and install, and is prone to the problem of fuselage or tail breaking when the tail first hits the ground.
A fully-moving horizontal tail wing quick-release connection device including ball head connector, connecting shaft, guide plate and tail wing connection bracket is designed. The fast connection and separation between the tail wing and the fuselage is achieved through plug-in method, and the guide plate is used to control the tail wing Pitch angle and allow the tail connection bracket to break when the torque is too high to reduce damage.
It realizes efficient and fast connection and separation between the tail wing and the fuselage, reduces damage to the tail wing and the fuselage during collision, reduces the risk of high-cost tail wing or fuselage breakage, and optimizes the storage and transportation process of the drone.
Smart Images
Figure CN222247755U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of unmanned aerial vehicle connection devices, in particular to a fully movable horizontal tail wing quick-release connection device for a fixed-wing unmanned aerial vehicle. Background Art
[0002] To facilitate storage and transportation, the wings and other parts of fixed-wing drones are often designed to be detachable or foldable to reduce the packaging size.
[0003] The horizontal tail of a fixed-wing UAV is used to control the pitch attitude of the UAV. The connection device between the horizontal tail and the UAV fuselage can be fixed or detachable.
[0004] There are two main types of fixed-wing UAV horizontal tails: a fully movable horizontal tail and a horizontal tail consisting of a fixed horizontal stabilizer and a deflectable elevator.
[0005] When a fixed-wing drone glides and lands, if the tail touches the ground first, it is easy to cause the fuselage or tail to break. Utility Model Content
[0006] The utility model aims to provide a fixed-wing UAV full-motion horizontal tail quick-release connection device to solve the problem that the horizontal tail is time-consuming and labor-intensive to disassemble and install and the fuselage or tail is easily broken when the tail lands first.
[0007] To achieve the above-mentioned purpose, an embodiment of the utility model provides a UAV connection structure, including: a ball head connector, a connecting shaft, a guide plate, and a tail wing connecting bracket.
[0008] The ball head connector comprises a cylindrical end and a hemispherical end; the hemispherical end is provided with a limiting groove and a mounting hole; the mounting hole runs through the hemispherical end.
[0009] The guide plate includes a mounting hole 2 located in the middle and a mounting hole 5 located at one end; with the mounting hole 2 as the vertex, the extension directions of the two ends of the guide plate form an angle of about 60 degrees; the inner diameter of the mounting hole 2 of the guide plate is slightly larger than the diameter of the connecting shaft; the inner diameter of the mounting hole 1 is the same as the diameter of the connecting shaft; the thickness of the guide plate is slightly smaller than the gap of the limiting groove 1.
[0010] The tail wing connecting bracket includes a fixing plate, a clamping arm 1 and a clamping arm 2, and the fixing plate is provided with a mounting hole 3, a mounting hole 4 and a limiting groove 2; the clamping arm 1 includes a clamping hole 1, and the clamping arm 2 includes a clamping hole 2; the gap between the clamping arm 1 and the clamping arm 2 is smaller than the diameter of the connecting shaft; the distance between the inner sides of the clamping arm 1 and the clamping arm 2 is consistent with the distance between the outer ends of the hemispherical end mounting hole 1; the distance between the outer sides of the clamping arm 1 and the clamping arm 2 is slightly smaller than the length of the connecting shaft; the inner diameters of the clamping hole 1 and the clamping hole 2 are slightly smaller than the diameter of the connecting shaft; the width and thickness of the other end of the guide plate without the mounting hole 5 are consistent with the inner dimensions of the limiting groove 2 of the tail wing connecting bracket, and can pass through the limiting groove 2 without shaking.
[0011] Preferably, when fixed, the cylindrical end of the ball head connector is fixed on the UAV fuselage; the guide plate is located in the limiting groove 1 of the hemispherical end of the ball head connector, and the center of the guide plate mounting hole 2 and the center of the guide plate mounting hole 1 of the hemispherical end of the ball head connector are on the same axis; the connecting shaft passes through the mounting hole 1 of the hemispherical end of the ball head connector and the guide plate mounting hole 2; the connecting shaft is fixed in the mounting hole 1 of the hemispherical end of the ball head connector, and after fixing, the lengths of the two ends of the connecting shaft exposed outside the hemispherical end mounting hole 1 are the same; the guide plate can rotate around the connecting shaft in the limiting groove 1 without stagnation; the guide plate mounting hole 5 is connected to the servo on the UAV fuselage for controlling the pitch of the tail wing using a rigid pull rod, so that the guide plate is connected to the servo on the UAV fuselage for controlling the pitch of the tail wing.
[0012] Preferably, when fixing, screws are used to fix the tail connecting bracket on the horizontal tail of the UAV at the mounting hole three and the mounting hole four positions on the fixing plate.
[0013] Preferably, during connection, the other end of the guide plate without the mounting hole five is passed through the limiting groove two of the tail wing connecting bracket, and at the same time, the parts of the connecting shaft exposed from the two outer ends of the mounting hole one of the hemispherical end of the ball head connector are placed in the clamping arm one and the clamping arm two on the tail wing connecting bracket, and the pushing is continued to make the clamping arm one and the clamping arm two elastically deform until the connecting shaft reaches the position of the clamping hole one and the clamping hole two, so that the tail wing is connected to the ball head connector fixed on the fuselage, as well as the connecting shaft and the guide plate through the tail wing connecting bracket; the connection between the tail wing and the fuselage is realized, and the tail wing is driven to rotate around the connecting shaft by controlling the guide plate to rotate around the connecting shaft, so that the horizontal tail of the UAV fixed to the tail wing connecting bracket rotates around the connecting shaft.
[0014] Preferably, during quick disassembly, the tail wing is pulled to disengage the connecting shaft from the clamping arm 1 and the clamping arm 2 of the tail wing connecting bracket, and at the same time, the other end of the guide plate without the mounting hole 5 is withdrawn from the limiting groove 2 to disengage the tail wing from the fuselage.
[0015] Compared with the fixed connection method, the embodiment of the utility model has the following beneficial effects: a fixed-wing UAV full-motion horizontal tail quick-release connection device comprises: a ball head connector, a connecting shaft, a guide plate, and a tail connection bracket; the cylindrical end of the ball head connector is fixed to the UAV fuselage, and the tail connection bracket is installed on the UAV horizontal tail; when connecting, the tail connection bracket is connected to the connecting shaft installed on the ball head connector in a plug-in manner to achieve a quick connection between the horizontal tail and the fuselage; when disassembling, the connecting shaft is pulled out from the tail connection bracket to achieve a quick separation of the horizontal tail and the fuselage; the utility model has a simple structure, and the UAV fuselage and the horizontal tail are connected by the ball head connector, the connecting shaft, the guide plate, and the tail connection bracket. , the pitch angle of the horizontal tail is controlled by the guide plate; compared with the traditional fixed connection method, the plug-in installation and disassembly separation are more efficient and quick; at the same time, when the UAV tail touches the ground first, the force on the UAV tail increases sharply, which may cause damage to the UAV, the tail connection bracket and the connecting shaft can be instantly detached to reduce damage to the tail; in special circumstances, if the torque between the tail and the fuselage is too large, that is, the torque acting between the tail connection bracket and the connecting shaft is too large, the clamping arm 1 and the clamping arm 2 of the tail connection bracket will be partially or completely broken, so that the tail and the fuselage are separated in time, reducing the loss of the tail and the fuselage, and effectively protecting the tail and the fuselage; compared with the higher cost of the tail or fuselage breakage, the loss of the lower cost tail connection bracket breakage can be basically ignored. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] The utility model is further described below in conjunction with the accompanying drawings and embodiments.
[0017] Figure 1 A stereoscopic diagram of a fully movable horizontal tail quick-release connection device for a fixed-wing UAV of the present invention is shown;
[0018] Figure 2 A three-dimensional diagram of the ball head connector, the connecting shaft, and the guide plate of the utility model is shown;
[0019] Figure 3 A three-dimensional diagram of a ball head connector of the present invention is shown;
[0020] Figure 4 A three-dimensional diagram of the connecting shaft of the utility model is shown;
[0021] Figure 5 A three-dimensional diagram of the guide plate of the utility model is shown;
[0022] Figure 6 A stereoscopic view of the tail wing connecting bracket of the present invention is shown.
[0023] 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. tail wing connecting 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 DESCRIPTION
[0024] The utility model is now described in further detail with reference to the accompanying drawings.
[0025] The utility model provides a fixed-wing UAV full-motion horizontal tail quick-release connection device, such as Figures 1 to 6 As shown, it includes: a ball head connector 1, a connecting shaft 2, a guide plate 3, and a tail wing connecting bracket 4;
[0026] like Figures 2 to 3 As shown, the ball head connector 1 includes a cylindrical end 11 and a hemispherical end 12 . The hemispherical end 12 is provided with a mounting hole 121 and a limiting groove 122 . The mounting hole 121 runs through the hemispherical end 12 .
[0027] like Figure 5 As shown, the guide plate 3 includes a second mounting hole 31 located in the middle and a fifth mounting hole 32 located at one end; with the second mounting hole 31 as the vertex, the extension directions of the two ends of the guide plate 3 form an angle of about 60 degrees; the inner diameter of the second mounting hole 31 of the guide plate 3 is slightly larger than the diameter of the connecting shaft 2; the inner diameter of the first mounting hole 121 is the same as the diameter of the connecting shaft 2; the thickness of the guide plate 3 is slightly smaller than the gap of the limiting groove 122.
[0028] like Figure 6 As shown, the tail wing connecting bracket 4 includes a fixing plate 41, a clamping arm 1 42, and a clamping arm 2 43; the fixing plate 41 has a mounting hole 3 411, a mounting hole 412, and a limiting groove 2 413; the clamping arm 1 42 has a clamping hole 1 421 in the middle, and the clamping arm 2 43 has a clamping hole 2 431 in the middle. The gap between the clamping arm 1 42 and the clamping arm 2 43 is smaller than the diameter of the connecting shaft 2; the distance between the inner sides of the clamping arm 1 42 and the clamping arm 2 43 is consistent with the distance between the two outer ends of the mounting hole 121 of the hemispherical end 12; the distance between the outer sides of the clamping arm 1 42 and the clamping arm 2 43 is slightly smaller than the length of the connecting shaft 2; the inner diameters of the clamping hole 1 421 and the clamping hole 2 431 are slightly smaller than the diameter of the connecting shaft 2; the width and thickness of the other end of the guide plate 3 without the mounting hole 5 32 are consistent with the internal dimensions of the limiting groove 2 413 of the tail wing connecting bracket 4, and can pass through the limiting groove 2 413 without shaking.
[0029] Preferably, Figures 1 to 5As shown, when fixed, the cylindrical end 11 of the ball head connector 1 is fixed on the UAV fuselage; the guide plate 3 is located in the limiting groove 122 of the hemispherical end 12 of the ball head connector 1, and the center of the second mounting hole 31 of the guide plate 3 and the center of the mounting hole 121 of the hemispherical end 12 of the ball head connector 1 are on the same axis; the connecting shaft 2 passes through the mounting hole 121 of the hemispherical end 12 of the ball head connector 1 and the second mounting hole 31 of the guide plate 3; the connecting shaft 2 is fixed in the mounting hole 121 of the hemispherical end 12 of the ball head connector 1, and after fixing, the lengths of the two ends of the connecting shaft 2 exposed outside the mounting hole 121 of the hemispherical end 12 are the same; the guide plate 3 can rotate around the connecting shaft 2 in the limiting groove 122 without stagnation; the mounting hole 5 32 of the guide plate 3 is connected to the servo for controlling the pitch of the tail wing on the UAV fuselage using a rigid pull rod, so that the guide plate 3 is connected to the servo for controlling the pitch of the tail wing on the UAV fuselage.
[0030] Preferably, Figure 6 As shown, screws are used at the mounting hole 3 411 and the mounting hole 412 of the fixing plate 41 of the tail connecting bracket 4 to fix the tail connecting bracket 4 on the horizontal tail of the UAV;
[0031] Preferably, Figures 1 to 6 As shown, when connecting, the end of the guide plate 3 without the mounting hole 5 32 is inserted into the limiting groove 2 413 of the fixing plate 41 of the tail connecting bracket 4; at the same time, the parts of the connecting shaft 2 exposed at both ends outside the mounting hole 121 of the hemispherical end 12 of the ball head connector 1 are placed in the clamping arm 1 42 and the clamping arm 2 43 on the tail connecting bracket 4, and the pushing is continued to make the clamping arm 1 42 and the clamping arm 2 43 elastically deform until the connecting shaft 2 reaches the position of the clamping hole 1 421 and the clamping hole 2 431, so that the tail is connected to the ball head connector 1 fixed on the fuselage, as well as the connecting shaft 2 and the guide plate 3 through the tail connecting bracket 4; the connection between the tail and the fuselage is realized, and the tail connecting bracket 4 is driven to rotate around the connecting shaft 2 by controlling the guide plate 3 to rotate around the connecting shaft 2, so that the horizontal tail of the UAV fixed to the tail connecting bracket 4 rotates around the connecting shaft 2. The tail connecting bracket 4 is made of a light and strong material with a certain elasticity. The clamping arm 1 42 and the clamping arm 2 43 thereon can produce elastic deformation and open to a certain extent during the process of being plugged into the connecting shaft 2. When the two ends of the connecting shaft 2 reach the positions of the clamping hole 1 421 and the clamping hole 2 431, they restore to their original state and clamp the connecting shaft 2 to connect and fix the tail. When disassembling, the reverse operation can quickly separate the tail from the fuselage to achieve quick loading and unloading. It should be noted that the material used for the tail connecting bracket 4 can be selected from but not limited to nylon, and the guide plate 3 can be selected from but not limited to carbon fiber.
[0032] Preferably, the guide plate 3 is connected to the servo for controlling the pitch of the tail wing on the UAV through the mounting hole five 32, and the guide plate 3 is controlled to rotate around the connecting shaft 2, thereby driving the horizontal tail wing of the UAV fixed to the tail wing connecting bracket 4 to rotate around the connecting shaft 2, so as to achieve the purpose that the servo for controlling the pitch of the tail wing on the UAV can control the movement of the horizontal tail wing.
[0033] To sum up: compared with the fixed connection method, the embodiments of the utility model have the following beneficial effects: the connection device adopts a plug-in quick-release method, which makes the plug-in installation and disassembly and separation of the UAV fuselage and tail wing more efficient and quick; the connection device has a simple structure, one part is fixed on the fuselage, and the other part is fixed on the horizontal tail wing. The horizontal tail wing and the fuselage are connected by plug-in, which can achieve quick installation and separation of the horizontal tail wing and the fuselage while taking into account the reliability of the connection; in addition, when the UAV tail wing lands first and is hit, the force on the UAV tail wing increases sharply, which may cause damage to the UAV, the tail wing connecting bracket 4 and the connecting 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 connection bracket 4 is only a few tenths of the cost of the fuselage and the tail, in special cases, when the tail hits the ground and is hit, if the torque between the tail and the fuselage is too large, that is, the torque acting between the tail connection bracket 4 and the connecting shaft 2 is too large, the clamping arm 1 42 and the clamping arm 2 43 of the tail connection bracket 4 will be partially or completely broken, so that the tail and the fuselage are separated in time, that is, the damage to the fuselage and the tail is replaced by the breakage of the tail connection bracket 4, to protect the tail and the fuselage, and minimize the loss. Therefore, the connection device takes into account the overall safety and economy of the drone while achieving quick loading and unloading and reliable connection.
Claims
1. A fixed-wing UAV full-motion horizontal tail quick-release connection device, characterized in that: It includes a ball joint connector, a connecting shaft, a guide plate, and a tail wing connecting bracket; The ball head connector includes a cylindrical end and a hemispherical end; the guide plate includes a second mounting hole and a fifth mounting hole; the tail wing connecting bracket includes a fixing plate, a first clamping arm and a second clamping arm; When fixed, the cylindrical end of the ball head connector is fixed on the UAV fuselage; the connecting shaft passes through the hemispherical end of the ball head connector and the second mounting hole of the guide plate to connect the ball head connector and the guide plate; the connecting shaft is fixed to the hemispherical end of the ball head connector; the guide plate can rotate around the connecting shaft; the tail wing connecting bracket is fixed on the horizontal tail wing of the UAV; When connecting, the other end of the guide plate without the mounting hole 5 is inserted into the tail connecting bracket, and the clamping arm 1 and the clamping arm 2 of the tail connecting bracket clamp the connecting shaft; the tail is connected to the ball head connector fixed on the fuselage, the connecting shaft and the guide plate through the tail connecting bracket; the tail is connected to the fuselage and can pitch around the connecting shaft; During quick disassembly, pull the horizontal tail of the drone to separate the connecting shaft from the clamping arm 1 and the clamping arm 2 of the tail connecting bracket, and at the same time, the other end of the guide plate without the mounting hole 5 is separated from the tail connecting bracket, so that the tail is separated from the fuselage.
2. A fixed-wing UAV full-motion horizontal tail quick-release connection device according to claim 1, characterized in that: The ball head connector includes a cylindrical end and a hemispherical end; The hemispherical end is provided with a limiting groove and a mounting hole; the mounting hole runs through the hemispherical end; When fixed, the cylindrical end of the ball head connector is fixed on the UAV fuselage.
3. The fixed-wing UAV full-motion horizontal tail quick-release connection device according to claim 2, characterized in that: The inner diameter of the mounting hole is the same as the diameter of the connecting shaft; The thickness of the guide plate is slightly smaller than the gap of the first limiting groove; The guide plate includes a second mounting hole and a fifth mounting hole; with the second mounting hole as the vertex, the extending directions of the two ends of the guide plate form an angle of about 60 degrees; The inner diameter of the second mounting hole of the guide plate is slightly larger than the diameter of the connecting shaft; When fixed, the guide plate is located in the limiting groove 1 of the hemispherical end of the ball head connector, and the center of the guide plate mounting hole 2 and the center of the guide plate mounting hole 1 of the hemispherical end of the ball head connector are on the same axis; the connecting shaft passes through the mounting hole 1 of the hemispherical end of the ball head connector and the guide plate mounting hole 2; the connecting shaft is fixed in the mounting hole 1 of the hemispherical end of the ball head connector, and after fixing, the lengths of the connecting shaft exposed at both ends of the outside of the hemispherical end mounting hole 1 are the same; the guide plate can rotate around the connecting shaft in the limiting groove 1 without stagnation; the guide plate mounting hole 5 is connected to the servo on the fuselage of the drone for controlling the pitch of the tail wing using a rigid pull rod.
4. The fixed-wing UAV full-motion horizontal tail quick-release connection device according to claim 1, characterized in that: The tail wing connection bracket comprises a fixing plate, a first clamping arm and a second clamping arm; The fixing plate is provided with a third mounting hole, a fourth mounting hole and a second limiting groove; When fixing, the tail connecting bracket is fixed to the horizontal tail of the UAV by using screws through the mounting hole three and the mounting hole four on the fixing plate.
5. The fixed-wing UAV full-motion horizontal tail quick-release connection device according to claim 4, characterized in that: The clamping arm 1 includes a clamping hole 1, and the clamping arm 2 includes a clamping hole 2; The gap between the clamping arm 1 and the clamping arm 2 is slightly smaller than the diameter of the connecting shaft; The distance between the inner sides of the clamping arm 1 and the clamping arm 2 is consistent with the distance between the outer ends of the hemispherical end mounting hole 1; The distance between the outer sides of the clamping arm 1 and the clamping arm 2 is slightly smaller than the length of the connecting shaft; The inner diameters of the clamping hole 1 and the clamping hole 2 are slightly smaller than the diameter of the connecting shaft; The width and thickness of the other end of the guide plate without the mounting hole 5 are consistent with the internal dimensions of the limiting groove 2 of the tail wing connecting bracket, and can pass through the limiting groove 2 without shaking; When connecting, the other end of the guide plate without the mounting hole 5 passes through the limiting groove 2, and the parts of the connecting shaft exposed at the two ends of the outer side of the hemispherical end mounting hole 1 are placed in the clamping arm 1 and the clamping arm 2 on the tail wing connecting bracket, and the clamping arm 1 and the clamping arm 2 are continuously pushed to make the clamping arm 1 and the clamping arm 2 elastically deform until the connecting shaft reaches the position of the clamping hole 1 and the clamping hole 2, so that the tail wing is connected to the ball head connector fixed on the fuselage, the connecting shaft and the guide plate through the tail wing connecting bracket; the tail wing is connected to the fuselage and can pitch around the connecting shaft; During quick disassembly, the tail is pulled to separate the connecting shaft from the clamping arm 1 and the clamping arm 2 of the tail connecting bracket, and at the same time, the other end of the guide plate without the mounting hole 5 is withdrawn from the limiting groove 2 to separate the tail from the fuselage.