Take-off and landing mechanism for unmanned aerial vehicle

Abstract

The utility model provides a landing mechanism for an unmanned aerial vehicle. The landing mechanism for the unmanned aerial vehicle comprises a bottom plate, vertical shafts are symmetrically arranged on the left side and the right side of the upper surface of the bottom plate front and back, the surfaces of the vertical shafts are rotationally connected with special-shaped plates, the tops of the vertical shafts are fixedly connected with threaded rods, and the surfaces of the threaded rods are in threaded connection with pressing pieces; the bottom of the pressing piece abuts against the upper surface of the special-shaped plate, a sliding groove is formed in the upper surface of the side, opposite to the pressing piece, of the special-shaped plate, a sliding block is slidably connected into the sliding groove, a supporting outer rod is vertically arranged at the top of the sliding block, and a supporting inner rod is slidably connected into the supporting outer rod. The surface of the supporting inner rod is fixedly connected with a plurality of supporting rods evenly distributed around the axis. The landing mechanism for the unmanned aerial vehicle has the advantages that the position of the blade protection structure can be flexibly adjusted, and meanwhile the damping supporting feet can adapt to various types of grounds.

Description

Technical Field

[0001] The utility model relates to the field of unmanned aerial vehicles, in particular to a take-off and landing mechanism for unmanned aerial vehicles. Background Art

[0002] Drones have become a popular small aircraft due to their compact size, low energy consumption and easy control. People use drones for high-altitude photography, spraying fertilizers or pesticides on farms, and long-distance transportation of items. Drones are widely used in production and life. In order to enable drones to take off and land smoothly on various types of ground, a support structure with a shock-absorbing effect is generally installed on the belly of the drone.

[0003] However, the current landing structure for drones still has certain shortcomings during use: first, in order to prevent the high-speed rotating blades of the drone from colliding with objects such as tree branches and protruding stones during flight or landing, the current landing structure generally installs an annular protection structure on the outside of the blades, but the existing drone blade protection structure cannot be adjusted according to the position of the blades on different drones, and the structure has poor adaptability. Secondly, the height of the shock-absorbing feet of the existing drone landing gear is not convenient to adjust. Some ground is too rugged or very muddy, and the traditional shock-absorbing feet are not convenient for the drone to land stably.

[0004] Therefore, it is necessary to provide a new landing mechanism for unmanned aerial vehicle to solve the above-mentioned technical problems. Utility Model Content

[0005] The technical problem solved by the utility model is to provide a landing mechanism for a UAV with a blade protection structure whose position can be flexibly adjusted and whose shock-absorbing feet can adapt to various types of ground.

[0006] In order to solve the above technical problems, the utility model provides a landing mechanism for an unmanned aerial vehicle, comprising: a bottom plate, vertical shafts are symmetrically arranged on the left and right sides of the upper surface of the bottom plate, a special-shaped plate is rotatably connected to the surface of the vertical shaft, a threaded rod is fixedly connected to the top of the vertical shaft, a clamping sheet is threadedly connected to the surface of the threaded rod, the bottom of the clamping sheet abuts against the upper surface of the special-shaped plate, a sliding groove is provided on the upper surface of one side of the special-shaped plate relative to the clamping sheet, a slider is slidably connected to the inside of the sliding groove, a supporting outer rod is vertically arranged on the top of the slider, and a supporting outer rod is slidably connected to the inside of the supporting outer rod A support inner rod, the surface of which is fixedly connected with a plurality of support rods evenly distributed around the axis, a protective ring is fixedly connected between the tops of the plurality of support rods, a locking plate is fixedly connected with the top of the support outer rod, a tightening sleeve is arranged at a position outside the locking plate, the tightening sleeve is threadedly connected to the support outer rod, an ear plate is welded on the surface of one side wall of the special-shaped plate, a spring rod is slidably connected inside the ear plate, a key groove is vertically opened on the surface of one side wall of the spring rod, the top of the ear plate is threadedly connected with a first bolt through a connecting block, and the end of the first bolt is located inside the key groove.

[0007] As a further solution of the utility model, a limiting plate is welded on the side wall surface of the supporting outer rod, one end of the limiting plate extends to the bottom of the special-shaped plate, and a second bolt is threadedly connected to the surface of the limiting plate, and the top of the second bolt is abutted against the bottom of the special-shaped plate.

[0008] Through the above technical solution, the angle and length of the cantilever extension of different drones are different, so the position of the blades will also change. The current blade protection covers are mostly fixed and inconvenient to adjust. In this device, the user can rotate the special-shaped plate to position it, and then slide the supporting outer rod inside the slide groove so that the protective ring is directly below the blade. Then use the second bolt to lock the limit plate at this position and pull up the protective ring. The cantilever will pass through the notch on one side of the protective ring, so that the protective ring can be at the same horizontal height as the blades. Finally, rotate the tightening sleeve to fix the supporting inner rod at this height, so that the height and angle of the protective ring are fixed. The structure is easy to adjust and has a wide range of applications.

[0009] As a further solution of the utility model, a plurality of anti-slip racks evenly distributed around the axis are fixedly connected to the outer wall surface of the tightening sleeve, and a notch is opened at one side of the surface of the protective ring.

[0010] Through the above technical solution, the provision of the anti-slip rack can facilitate the user to rotate the tightening sleeve, and the notch on the protective ring is to allow the protective ring to pass through the cantilever to protect the blade.

[0011] As a further solution of the utility model, the upper surface of the base plate is fixedly connected to a mounting plate via a connecting plate, the top of the mounting plate is connected to a body via bolts, and a camera is installed on the front wall surface of the body.

[0012] Through the above technical solution, the camera in the structure can be used for high-altitude shooting, and the landing mechanism is connected to the main body by bolts, with good fixing effect and stable installation.

[0013] As a further solution of the utility model, cantilevers are installed symmetrically on both the front and rear sides of the body, and blades are arranged at the ends of the cantilevers.

[0014] Through the above technical solution, the drone body drives the blades to rotate through the motor, so that the blades can generate sufficient thrust to drive the drone structure to fly.

[0015] As a further solution of the utility model, the bottoms of the four spring rods are each provided with a toe, and the ends of the first bolt and the second bolt are both fixedly connected with a tightening cap.

[0016] Through the above technical solution, when the drone is used in the wild, there is less flat ground, and there will generally be rugged or muddy ground, which is not convenient for the drone to land. At this time, the user can adjust the position of the spring rod by sliding to prevent the protrusions on the ground from damaging the drone body after the drone lands. At the same time, the spring rod is locked in this position by the first bolt. A spring is arranged inside the spring rod to reduce the vibration of the structure during landing, and the toe at the bottom allows the device to land smoothly on various types of ground. The structural design is light, reasonable, and more user-friendly.

[0017] As a further solution of the utility model, the blades are located inside the protective ring, and the horizontal height of the blades is flush with the horizontal height of the protective ring.

[0018] Through the above technical solution, the protective ring can protect the blades to prevent them from colliding with other objects during flight and causing damage. At the same time, several groups of support rods are set at the bottom of the protective ring. The grouped support rods can prevent the blades from colliding with large protrusions on the ground when the drone lands.

[0019] Compared with the related art, the landing mechanism for a drone provided by the utility model has the following beneficial effects:

[0020] 1. In the utility model, when the drone is used in the wild, there are few flat grounds, and there are usually rugged or muddy grounds, which are not convenient for the drone to land. At this time, the user can adjust the position of the spring rod by sliding to prevent the protrusions on the ground from damaging the fuselage of the drone after the drone lands. At the same time, the spring rod is locked in this position by the first bolt. A spring is arranged inside the spring rod to reduce the vibration of the structure during landing, and the toe at the bottom allows the device to land smoothly on various types of ground. The structural design is light and reasonable, and more humane;

[0021] 2. In the utility model, the angle and length of the cantilever extension of different drones are different, so the position of the blades will also change. The current blade protection covers are mostly fixed and inconvenient to adjust. In this device, the user can rotate the special-shaped plate to position it, and then slide the supporting outer rod inside the slide groove to make the protective ring directly under the blade. Then use the second bolt to lock the limit plate at this position, and pull up the protective ring. The cantilever will pass through the notch on one side of the protective ring, so that the protective ring can be at the same horizontal height as the blades. Finally, rotate the tightening sleeve to fix the supporting inner rod at this height, so that the height and angle of the protective ring are fixed. The structure is easy to adjust and has a wide range of applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to facilitate understanding by those skilled in the art, the present invention is further described below in conjunction with the accompanying drawings.

[0023] Figure 1 This is a schematic diagram of the overall structure of a landing mechanism for a drone in the utility model;

[0024] Figure 2 This is a partial structural schematic diagram of a landing mechanism for a UAV in the utility model;

[0025] Figure 3 This is a schematic diagram of the partial structure disassembly of a landing mechanism for a drone in the utility model;

[0026] Figure 4 The utility model is a schematic diagram of the structure of point A of a landing mechanism for a UAV.

[0027] Description of main symbols:

[0028] 1. Main body; 2. Camera; 3. Cantilever; 4. Blade; 5. Protective ring; 6. Notch; 7. Support rod; 8. Toe; 9. Special-shaped plate; 10. Slide groove; 11. Spring rod; 12. Support outer rod; 13. Support inner rod; 14. Mounting plate; 15. Bottom plate; 16. Keyway; 17. Pressure plate; 18. First bolt; 19. Second bolt; 20. Threaded rod; 21. Locking plate; 22. Tightening sleeve; 23. Limit plate. DETAILED DESCRIPTION

[0029] Please combine Figures 1 to 4 ,in, Figure 1 This is a schematic diagram of the overall structure of a landing mechanism for a drone in the utility model; Figure 2 This is a partial structural schematic diagram of a landing mechanism for a UAV in the utility model; Figure 3 This is a schematic diagram of the partial structure disassembly of a landing mechanism for a drone in the utility model; Figure 4 The structure diagram of the A position of a landing mechanism for a UAV in the utility model is shown in FIG. A landing mechanism for a UAV includes:

[0030] The bottom plate 15 has vertical shafts symmetrically arranged on the left and right sides of the upper surface of the bottom plate 15. The surface of the vertical shaft is rotatably connected to the special-shaped plate 9. The top of the vertical shaft is fixedly connected to the threaded rod 20. The surface of the threaded rod 20 is threadedly connected to the clamping sheet 17. The bottom of the clamping sheet 17 abuts against the upper surface of the special-shaped plate 9. The upper surface of the special-shaped plate 9 relative to the clamping sheet 17 is provided with a slide groove 10. The inside of the slide groove 10 is slidably connected to a slider. The top of the slider is vertically provided with a support outer rod 12. The inside of the support outer rod 12 is slidably connected to a support inner rod 13. The surface of the support inner rod 13 is fixedly connected to the It is connected to a number of support rods 7 evenly distributed around the axis, a protective ring 5 is fixedly connected between the tops of the support rods 7, a locking plate 21 is fixedly connected to the top of the support outer rod 12, a tightening sleeve 22 is arranged at the outer side of the locking plate 21, the tightening sleeve 22 is threadedly connected to the support outer rod 12, an ear plate is welded to the surface of one side wall of the special-shaped plate 9, a spring rod 11 is slidably connected to the inside of the ear plate, a key groove 16 is vertically opened on the surface of one side wall of the spring rod 11, the top of the ear plate is threadedly connected to the first bolt 18 through a connecting block, and the end of the first bolt 18 is located inside the key groove 16.

[0031] like Figure 1-4 As shown, a limiting plate 23 is welded to the side wall surface supporting the outer rod 12, one end of the limiting plate 23 extends to the bottom of the special-shaped plate 9, and a second bolt 19 is threadedly connected to the surface of the limiting plate 23, and the top of the second bolt 19 is abutted against the bottom of the special-shaped plate 9.

[0032] The extension angle and length of the cantilever 3 of different drones are different, so the position of the blade 4 will also change. The current blade 4 protection cover is mostly fixed and inconvenient to adjust. In this device, the user can rotate the special-shaped plate 9 to position it, and then slide the support outer rod 12 inside the slide groove 10 to allow the protection ring 5 to be directly below the blade 4. Then use the second bolt 19 to lock the limit plate 23 at this position, and pull up the protection ring 5. The cantilever 3 will pass through the notch 6 on one side of the protection ring 5, so that the protection ring 5 can be at the same horizontal height as the blade 4. Finally, rotate the tightening sleeve 22 to fix the support inner rod 13 at this height, so that the height and angle of the protection ring 5 are fixed. The structure is easy to adjust and has a wide range of applications.

[0033] like Figure 1-4 As shown, a plurality of anti-slip racks evenly distributed around the axis are fixedly connected to the outer wall surface of the tightening sleeve 22, and a notch 6 is opened at one side of the surface of the protective ring 5.

[0034] The provision of the anti-slip rack can facilitate the user to rotate the tightening sleeve 22 , and the notch 6 on the protection ring 5 is to allow the protection ring 5 to pass through the cantilever 3 to protect the blade 4 .

[0035] like Figure 1-4 As shown, the upper surface of the bottom plate 15 is fixedly connected to the mounting plate 14 via a connecting plate, the top of the mounting plate 14 is connected to the body 1 via bolts, and the camera 2 is installed on the front wall surface of the body 1.

[0036] The camera 2 in the structure can be used for high-altitude photography, and the lifting and lowering mechanism is connected to the main body 1 by bolts, so the fixing effect is good and the installation is stable.

[0037] like Figure 1-4 As shown, cantilevers 3 are symmetrically installed on both the front and rear sides of the body 1, and blades 4 are arranged at the ends of the cantilevers 3.

[0038] The drone body 1 drives the blades 4 to rotate through the motor, so that the blades 4 can generate enough thrust to drive the drone structure to fly.

[0039] like Figure 1-4 As shown, the bottoms of the four spring rods 11 are each provided with a toe 8, and the ends of the first bolt 18 and the second bolt 19 are both fixedly connected with a tightening cap.

[0040] When the drone is used in the wild, there are fewer flat grounds, and there are usually rugged or muddy grounds, which are not convenient for the drone to land. At this time, the user can adjust the position of the spring rod 11 by sliding to prevent the protrusions on the ground from damaging the drone body after the drone lands. At the same time, the spring rod 11 is locked in this position by the first bolt 18. A spring is arranged inside the spring rod 11 to reduce the vibration of the structure during landing, and the toe 8 at the bottom allows the device to land smoothly on various types of ground. The structural design is light and reasonable, and more user-friendly.

[0041] like Figure 1-4 As shown, the blades 4 are located inside the protection ring 5 , and the level of the blades 4 is flush with the level of the protection ring 5 .

[0042] The protection ring 5 can protect the blades 4 to prevent the blades 4 from colliding with other objects during flight and causing damage. At the same time, a plurality of groups of support rods 7 are arranged at the bottom of the protection ring 5. The grouped support rods 7 can prevent the blades 4 from colliding with large protrusions on the ground when the drone lands.

[0043] The working principle of the landing mechanism for a drone provided by the utility model is as follows:

[0044] Step 1: When the drone is used in the wild, there are few flat grounds, and there are usually rugged or muddy grounds, which are not convenient for the drone to land. At this time, the user can adjust the position of the spring rod 11 by sliding to prevent the protrusions on the ground from damaging the drone body after the drone lands. At the same time, the spring rod 11 is locked in this position by the first bolt 18. The spring rod 11 is provided with a spring inside to reduce the vibration of the structure during landing, and the toe 8 at the bottom allows the device to land smoothly on various types of ground. The structural design is light and reasonable, and more humane;

[0045] The second step: the extension angle and length of the cantilever 3 of different drones are different, so the position of the blade 4 will also change. The current blade 4 protection cover is mostly fixed and inconvenient to adjust. In this device, the user can rotate the special-shaped plate 9 to position it, and then slide the support outer rod 12 inside the slide groove 10 to allow the protection ring 5 to be directly below the blade 4. Then use the second bolt 19 to lock the limit plate 23 at this position, and pull up the protection ring 5. The cantilever 3 will pass through the notch 6 on one side of the protection ring 5, so that the protection ring 5 can be at the same horizontal height as the blade 4. Finally, rotate the tightening sleeve 22 to fix the support inner rod 13 at this height, so that the height and angle of the protection ring 5 are fixed. The structure is easy to adjust and has a wide range of applications.

[0046] It should be noted that the equipment structure and drawings of the utility model mainly describe the principle of the utility model. In terms of the technology of the design principle, the settings of the power mechanism, power supply system and control system of the device are not fully described. On the premise that the technical personnel in this field understand the principle of the above utility model, the details of the power mechanism, power supply system and control system can be clearly known. The control method of the application document is automatic control through a controller, and the control circuit of the controller can be realized by simple programming by the technical personnel in this field;

[0047] The standard parts used therein can all be purchased from the market and can be customized according to the instructions and drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt conventional models in the prior art, and the structures and principles of the components known to technical personnel in this field can be known by these technical personnel through technical manuals or through conventional experimental methods.

[0048] Although the embodiments of the present invention have been shown and described, it is understood by those skilled in the art that various changes, modifications, substitutions and variations or direct or indirect applications may be made to these embodiments without departing from the principles and spirit of the present invention. In other related technical fields, the scope of the present invention is defined by the attached claims and their equivalents, which are equally included in the scope of patent protection of the present invention.

Claims

1. A landing mechanism for an unmanned aerial vehicle, characterized in that: The invention comprises a bottom plate (15), wherein both left and right sides of the upper surface of the bottom plate (15) are provided with vertical shafts symmetrically in front and back, the surface of the vertical shaft is rotatably connected to a special-shaped plate (9), the top of the vertical shaft is fixedly connected to a threaded rod (20), the surface of the threaded rod (20) is threadedly connected to a clamping plate (17), the bottom of the clamping plate (17) is in contact with the upper surface of the special-shaped plate (9), a sliding groove (10) is provided on the upper surface of one side of the special-shaped plate (9) relative to the clamping plate (17), a sliding block is slidably connected inside the sliding groove (10), a supporting outer rod (12) is vertically provided on the top of the sliding block, the supporting outer rod (12) is slidably connected inside the supporting inner rod (13), the surface of the supporting inner rod (13) is fixedly connected to the supporting inner rod (13) A plurality of support rods (7) uniformly distributed around the axis are fixedly connected, a protective ring (5) is fixedly connected between the tops of the plurality of support rods (7), a locking plate (21) is fixedly connected to the top of the support outer rod (12), a tightening sleeve (22) is arranged at a position outside the locking plate (21), the tightening sleeve (22) is threadedly connected to the support outer rod (12), an ear plate is welded on one side wall surface of the special-shaped plate (9), a spring rod (11) is slidably connected inside the ear plate, a key groove (16) is vertically opened on one side wall surface of the spring rod (11), a first bolt (18) is threadedly connected to the top of the ear plate through a connecting block, and the end of the first bolt (18) is located inside the key groove (16).

2. The landing mechanism for a drone as claimed in claim 1, characterized in that: A limiting plate (23) is welded to the side wall surface of the supporting outer rod (12), one end of the limiting plate (23) extends to the bottom of the special-shaped plate (9), and a second bolt (19) is threadedly connected to the surface of the limiting plate (23), and the top of the second bolt (19) is in contact with the bottom of the special-shaped plate (9).

3. The landing mechanism for a drone as claimed in claim 1, characterized in that: The outer wall surface of the tightening sleeve (22) is fixedly connected with a plurality of anti-slip racks evenly distributed around the axis, and a notch (6) is provided at one side of the surface of the protection ring (5).

4. The landing mechanism for a drone as claimed in claim 1, characterized in that: The upper surface of the bottom plate (15) is fixedly connected to a mounting plate (14) via a connecting plate, the top of the mounting plate (14) is connected to a body (1) via bolts, and a camera (2) is installed on the front wall surface of the body (1).

5. The landing mechanism for a drone as claimed in claim 4, characterized in that: Cantilevers (3) are symmetrically installed on both the front and rear sides of the body (1), and blades (4) are arranged at the ends of the cantilevers (3).

6. The landing mechanism for a drone as claimed in claim 1, characterized in that: The bottoms of the four spring rods (11) are each provided with a toe (8), and the ends of the first bolt (18) and the second bolt (19) are both fixedly connected with a tightening cap.

7. The landing mechanism for a drone as claimed in claim 5, characterized in that: The blade (4) is located inside the protective ring (5), and the level of the blade (4) is flush with the level of the protective ring (5).

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