Variable-pitch vertical take-off and landing fixed wing

Abstract

The utility model belongs to the technical field of fixed wings, and particularly relates to a variable-pitch type vertical take-off and landing fixed wing which comprises a working plate, a first motor is fixedly installed on one side in the working plate, a first rotating shaft is arranged at the output end of the first motor, and main gears are fixedly installed at the two ends of the surface of the first rotating shaft. After the external unmanned aerial vehicle takes off upwards and vertically, an arranged first motor works, connecting frames rotate to rotate working rods out of a working plate, the rotating angle of the connecting frames is limited through a flow guide plate, collision of the connecting frames on the two sides is avoided, and therefore normal work of the equipment is guaranteed; and through work of a second motor, a working rod drives variable-pitch fan blades to rotate, the flight speed of the external unmanned aerial vehicle is increased, the external unmanned aerial vehicle is used for sliding, and therefore resource waste is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of fixed-wings, and in particular relates to a variable-pitch vertical take-off and landing fixed-wing. Background Art

[0002] Fixed-wing UAV is an atmospheric detection instrument used in the fields of environmental science and technology and resource science and technology. Unmanned aircraft, referred to as "UAV", is an unmanned aircraft controlled by radio remote control equipment and self-contained program control devices, or is completely or intermittently autonomously operated by an on-board computer. Some UAV fixed-wings are mostly fixed structures. During use, the UAV is only used for vertical takeoff and landing. The function is relatively simple, which limits the flight speed of the UAV. Utility Model Content

[0003] In order to solve the problems raised in the above-mentioned background technology, the utility model provides a variable-paddle vertical take-off and landing fixed-wing, which solves the problem that the fixed-wings of some UAVs are mostly fixed structures, which can only perform vertical take-off and landing of the UAV during use, have relatively simple functions, and limit the flight speed of the UAV.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a variable pitch vertical take-off and landing fixed wing, comprising a working plate, a first motor is fixedly installed on one side inside the working plate, a first rotating shaft is arranged at the output end of the first motor, main gears are fixedly installed at both ends of the surface of the first rotating shaft, a sub-gear is meshed and connected on one side of the main gear, a third rotating shaft is fixedly installed inside the sub-gear, a connecting frame is fixedly installed on the surfaces of the first rotating shaft and the third rotating shaft, a second motor is fixedly installed on one side inside the connecting frame, a second rotating shaft is fixedly installed on the output end of the second motor, a main sprocket is fixedly installed on both ends of the surface of the second rotating shaft, a chain is meshed and connected on the surface of the main sprocket, a sub-sprocket is meshed and connected on one side inside the chain, a working rod is fixedly installed inside the sub-sprocket, a variable pitch fan blade is fixedly installed on the surface of the working rod, first connecting rods are fixedly installed around the bottom of the working plate, a first connecting plate is fixedly installed at the bottom of the first connecting rod, a guide plate is fixedly installed on the top of the working plate, and extension plates are fixedly connected at both ends of the working plate.

[0005] Preferably, a second connecting rod is fixedly installed inside the first connecting plate, the surface of the second connecting rod is rotatably connected to the second connecting plate, the surface of the second connecting plate is provided with connecting holes, and a sponge strip is fixedly installed on one side of the second connecting plate.

[0006] Preferably, one end of the second connecting plate is located inside the first connecting plate, and the second connecting plate is rotatably connected to the first connecting plate.

[0007] Preferably, the connecting frames are located on both sides of the working plate, and the connecting frames are rotatably connected to the working plate.

[0008] Preferably, the auxiliary gear and the main gear are both located on both sides of the working plate, and the guide plate is located above the connecting frame.

[0009] Preferably, the surface of the connecting frame is arranged to be F-shaped, the variable pitch fan blades are located on the inner wall of the connecting frame, and the variable pitch fan blades are rotatably connected to the connecting frame.

[0010] Preferably, the first connecting rod is obliquely located at the bottom of the working plate, and one side of the sponge strip is provided with an arc shape.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] When the external UAV takes off vertically upward, the first motor is set to work, so that the connecting frame rotates to rotate the working rod out of the inside of the working plate, and the guide plate is used to limit the rotation angle of the connecting frame to avoid collision of the connecting frames on both sides, thereby ensuring the normal operation of this equipment, and can also guide the air above the working plate to reduce the resistance above the working plate. The second motor is set to work, so that the working rod drives the variable-pitch fan blades to rotate, thereby accelerating the flight speed of the external UAV. This device is used to glide the external UAV, thereby reducing the waste of resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is the first three-dimensional structural diagram of the utility model;

[0014] Figure 2 This is a second three-dimensional structural diagram of the utility model;

[0015] Figure 3 This is a schematic diagram of the internal structure of the working board of the utility model;

[0016] Figure 4 It is a schematic diagram of the internal structure of the connecting frame of the utility model.

[0017] In the figure: 1. working plate; 2. first connecting rod; 3. extension plate; 4. guide plate; 5. connecting frame; 6. working rod; 7. first connecting plate; 8. sponge strip; 9. second connecting plate; 10. connecting hole; 11. first rotating shaft; 12. secondary gear; 13. first motor; 14. main gear; 15. secondary sprocket; 16. variable pitch fan blade; 17. chain; 18. second motor; 19. main sprocket; 20. second rotating shaft. DETAILED DESCRIPTION

[0018] The following will combine the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Figure 1-4 The utility model provides the following technical solutions: a variable pitch vertical take-off and landing fixed wing, comprising a working plate 1, a first motor 13 is fixedly installed on one side inside the working plate 1, a first rotating shaft 11 is arranged at the output end of the first motor 13, main gears 14 are fixedly installed on both ends of the surface of the first rotating shaft 11, a sub-gear 12 is meshedly connected on one side of the main gear 14, a third rotating shaft is fixedly installed inside the sub-gear 12, a connecting frame 5 is fixedly installed on the surfaces of the first rotating shaft 11 and the third rotating shaft, a second motor 18 is fixedly installed on one side inside the connecting frame 5, and the second motor 18 A second rotating shaft 20 is provided at the output end, and main sprockets 19 are fixedly installed at both ends of the surface of the second rotating shaft 20, and a chain 17 is meshedly connected to the surface of the main sprocket 19, and a secondary sprocket 15 is meshedly connected to one side of the chain 17, and a working rod 6 is fixedly installed inside the secondary sprocket 15, and a variable pitch fan blade 16 is fixedly installed on the surface of the working rod 6, a first connecting rod 2 is fixedly installed around the bottom of the working plate 1, a first connecting plate 7 is fixedly installed on the bottom of the first connecting rod 2, a guide plate 4 is fixedly installed on the top of the working plate 1, and extension plates 3 are fixedly connected to both ends of the working plate 1.

[0019] In a specific embodiment of the utility model, the device is installed on an external UAV. When the external UAV takes off vertically upward, the first motor 13 is set to work, so that the first rotating shaft 11 drives the secondary gear 12 on one side of the main gear 14 to rotate, and the first rotating shaft 11 and the third rotating shaft drive the connecting frames 5 on both sides to rotate, and the working rod 6 is rotated out of the inside of the working plate 1. The rotation angle of the connecting frame 5 is limited by the guide plate 4 to avoid collision of the connecting frames 5 on both sides, thereby ensuring the normal operation of the device. The second motor 18 is set to work, so that the second rotating shaft 20 drives the chain 17 on the surface of the main sprocket 19 to rotate, and the secondary sprocket 15 drives the variable pitch fan blades 16 on the surface of the working rod 6 to rotate, thereby accelerating the flight speed of the external UAV, and using this device to glide the external UAV, thereby reducing the waste of resources.

[0020] In this embodiment: the operator uses an external screw to penetrate the connecting hole 10 to fix the second connecting plate 9 and the external drone, and increases the friction between the device and the external drone through the sponge strip 8, thereby improving the stability of the installation of the device. Conversely, the device can be disassembled, and the operation is simple, thereby reducing the difficulty of working the device.

[0021] The working principle and use process of the utility model: After the utility model is installed, the operator uses external screws to penetrate the connecting holes 10 to fix the second connecting plate 9 and the external drone, and increases the friction between the device and the external drone through the sponge strip 8. When the external drone takes off vertically upward, the first motor 13 is set to work, so that the first rotating shaft 11 drives the secondary gear 12 on one side of the main gear 14 to rotate, and the first rotating shaft 11 and the third rotating shaft drive the connecting frames 5 on both sides to rotate, and the working rod 6 is rotated out of the interior of the working plate 1, through the guide The guide plate 4 limits the rotation angle of the connecting frame 5 to avoid collision between the connecting frames 5 on both sides. The guide plate 4 can also guide the air above the working plate 1 to reduce the resistance above the working plate 1. The second motor 18 is set to work, so that the second rotating shaft 20 drives the chain 17 on the surface of the main sprocket 19 to rotate, and the secondary sprocket 15 drives the variable pitch fan blades 16 on the surface of the working rod 6 to rotate, thereby accelerating the flight speed of the external UAV. This device is used to glide the external UAV. All electrical equipment in this device is powered by the internal power supply of the external UAV.

[0022] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A variable pitch vertical take-off and landing fixed wing, comprising a working plate (1), characterized in that: A first motor (13) is fixedly mounted on one side of the working plate (1), a first rotating shaft (11) is provided at the output end of the first motor (13), main gears (14) are fixedly mounted on both ends of the surface of the first rotating shaft (11), a sub-gear (12) is meshedly connected to one side of the main gear (14), a third rotating shaft is fixedly mounted inside the sub-gear (12), a connecting frame (5) is fixedly mounted on the surfaces of the first rotating shaft (11) and the third rotating shaft, a second motor (18) is fixedly mounted on one side of the connecting frame (5), a second rotating shaft (20) is provided at the output end of the second motor (18), and the second rotating shaft (20) is fixedly mounted on the output end of the second motor (18). Main sprockets (19) are fixedly mounted on both ends of the surface of the shaft (20); a chain (17) is meshedly connected to the surface of the main sprocket (19); a secondary sprocket (15) is meshedly connected to one side of the chain (17); a working rod (6) is fixedly mounted inside the secondary sprocket (15); a variable pitch fan blade (16) is fixedly mounted on the surface of the working rod (6); a first connecting rod (2) is fixedly mounted on all four sides of the bottom of the working plate (1); a first connecting plate (7) is fixedly mounted on the bottom of the first connecting rod (2); a guide plate (4) is fixedly mounted on the top of the working plate (1); and extension plates (3) are fixedly connected to both ends of the working plate (1).

2. The variable pitch vertical take-off and landing fixed-wing aircraft according to claim 1, characterized in that: A second connecting rod is fixedly installed inside the first connecting plate (7), and a second connecting plate (9) is rotatably connected to the surface of the second connecting rod. A connecting hole (10) is provided on the surface of the second connecting plate (9), and a sponge strip (8) is fixedly installed on one side of the second connecting plate (9).

3. The variable pitch vertical take-off and landing fixed wing according to claim 2, characterized in that: One end of the second connecting plate (9) is located inside the first connecting plate (7), and the second connecting plate (9) is rotatably connected to the first connecting plate (7).

4. The variable pitch vertical take-off and landing fixed-wing aircraft according to claim 1, characterized in that: The connecting frame (5) is located on both sides of the working plate (1), and the connecting frame (5) is rotatably connected to the working plate (1).

5. The variable pitch vertical take-off and landing fixed-wing aircraft according to claim 1, characterized in that: The auxiliary gear (12) and the main gear (14) are both located on both sides of the interior of the working plate (1), and the guide plate (4) is located above the connecting frame (5).

6. The variable pitch vertical take-off and landing fixed-wing aircraft according to claim 1, characterized in that: The surface of the connecting frame (5) is arranged in an F shape, the variable pitch fan blade (16) is located on the inner wall of the connecting frame (5), and the variable pitch fan blade (16) is rotatably connected to the connecting frame (5).

7. The variable pitch vertical take-off and landing fixed-wing aircraft according to claim 2, characterized in that: The first connecting rod (2) is tilted and located at the bottom of the working plate (1), and one side of the sponge strip (8) is arranged in an arc shape.

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