Aluminum alloy protective support based on unmanned rotorcraft

Abstract

The aluminum alloy protection support comprises an unmanned aerial vehicle body, the bottom end of the unmanned aerial vehicle body is fixedly connected with a mounting base, a connecting base is arranged in the mounting base, an adjusting lead screw is rotationally connected into the connecting base, the outer surface of the adjusting lead screw is in threaded connection with a driven plate, and the driven plate is connected with a rotating shaft. The outer surface of the driven plate and the interior of the connecting base are arranged in a sliding mode, and four sliding through holes are formed in the outer surface of the connecting base in a penetrating mode. The driven plate is driven to move upwards by rotating the adjusting lead screw, the four connecting rods are driven to move together in the moving process of the driven plate, the connecting rods incline in the rising process and push the clamping blocks to slide outwards in the sliding through holes and be inserted into the clamping grooves, and when the connecting base is rapidly installed and detached, the connecting base is convenient to disassemble and assemble. And the clamping blocks can be stored in the sliding through holes to be disassembled only by reversely rotating the adjusting screw rod, so that the protective bracket can be quickly disassembled and replaced, and the replacement efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of unmanned aerial vehicle accessories, in particular to an aluminum alloy protective bracket based on a rotary-wing unmanned aerial vehicle. Background Art

[0002] A rotor drone is an unmanned aerial vehicle that generates lift thrust by driving the rotors through the rotation of an electric motor. A multi-rotor drone refers to an aircraft with three or more rotor shafts. It is widely used in many fields such as power line inspection, fire search and rescue, traffic supervision, map surveying and mapping, agricultural plant protection, aerial photography, etc. The protective bracket is an important component of the drone and mainly plays the role of protecting the overall structure of the drone.

[0003] Most of the current protective brackets used in rotary-wing drones are fixed to the bottom of the drone with bolts. When the protective bracket is damaged and needs to be replaced, the bolts need to be removed one by one, which makes the replacement and installation of the protective bracket take a long time and reduces the replacement efficiency. Utility Model Content

[0004] The purpose of the present invention is to provide an aluminum alloy protective bracket based on a rotary-wing UAV to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solution: an aluminum alloy protective bracket based on a rotor UAV, comprising a UAV body, the bottom end of the UAV body being fixedly connected to a mounting seat, a connecting seat being arranged inside the mounting seat, an adjusting screw being rotatably connected inside the connecting seat, the outer surface of the adjusting screw being threadedly connected to a driven plate, the outer surface of the driven plate being slidingly arranged inside the connecting seat, four sliding through holes being penetrated through the outer surface of the connecting seat, each of the four sliding through holes being slidably connected to a card block, the bottom ends of the four card blocks being rotatably connected to a connecting rod, the other ends of the four connecting rods being rotatably connected to the top of the driven plate, four card slots being provided on the inner surface of the mounting seat, one end of the four card blocks being respectively plugged into the four card slots.

[0006] As a further preferred embodiment of the present technical solution, the bottom end of the connecting seat is rotatably connected to four supporting legs, and buffer legs are slidably arranged inside the four supporting legs. The top ends of the four buffer legs are fixedly connected to damper No. 1, and the outer surfaces of the four dampers No. 1 are sleeved with buffer springs, and the other end of the damper No. 1 is fixedly connected to the inner top surface of the supporting legs.

[0007] As a further preferred embodiment of the present technical solution, a connecting rod is rotatably connected between two adjacent supporting legs, and the other ends of the four connecting rods are slidingly connected to two telescopic sleeves, and two No. 2 dampers are fixedly connected inside the two telescopic sleeves, and the other ends of the four No. 2 dampers are fixedly connected to one end of the four connecting rods, and the outer surfaces of the four No. 2 dampers are all sleeved with reset springs.

[0008] As a further preferred embodiment of the present technical solution, the bottom end of the adjusting screw rod passes through the inner bottom surface of the connecting seat and is fixedly connected to a polygonal connecting column, the outer surface of the polygonal connecting column is slidably connected to a movable sleeve, the top of the movable sleeve is plugged into a fixed seat, and the top of the fixed seat is fixedly connected to the bottom end of the connecting seat.

[0009] As a further preferred embodiment of the present technical solution, a receiving groove is provided on the outer surface of the polygonal connecting column, a pressure spring is fixedly connected to the inside of the receiving groove, a clamp is fixedly connected to one end of the pressure spring, a limiting through hole is provided through the outer surface of the movable sleeve, and the outer surface of the clamp is plugged into the inside of the limiting through hole.

[0010] As a further preferred embodiment of the present technical solution, two limiting grooves are provided on the inner surface of the connecting seat, and two limiting blocks are fixedly connected to the outer surface of the driven plate, and the outer surfaces of the two limiting blocks are respectively slidably connected to the inside of the two limiting grooves.

[0011] As a further preferred embodiment of the present technical solution, a positioning block is fixedly connected to the outer surface of the connecting seat, a positioning groove is provided on the inner surface of the mounting seat, and the outer surface of the positioning block is plugged into the inner part of the positioning groove.

[0012] The utility model provides an aluminum alloy protective bracket based on a rotary wing UAV, which has the following beneficial effects:

[0013] (1) The utility model drives the driven plate to move upward by rotating the adjusting screw rod, and drives the four connecting rods to move together during the movement of the driven plate. The connecting rods tilt during the upward process and push the card block to slide outward in the sliding hole and insert it into the card slot, so that the connecting seat can be quickly installed. When disassembling, it is only necessary to rotate the adjusting screw rod in the opposite direction to put the card block into the sliding hole for disassembly, thereby realizing the rapid disassembly and replacement of the protective bracket and improving the replacement efficiency.

[0014] (2) The utility model uses the impact force generated when the drone lands to push the buffer leg into the support leg. The buffer spring contracts and converts the impact force into elastic potential energy for storage. When the buffer spring recovers its elastic deformation, the No. 1 damper limits the recovery speed of the buffer spring, so that the buffer leg slowly resets, achieving a buffering effect on the drone and effectively reducing the impact force on the internal components. Furthermore, through the arrangement of the telescopic sleeve, the reset spring, the No. 2 damper and the connecting rod, the support leg of the drone opens under the force between the drone and the ground during the landing process, so that the drone can land more stably. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is an exploded schematic diagram of the structure between the main body and the connecting seat of the UAV of the present invention;

[0017] Figure 3 This is a schematic diagram of the internal structure of the connecting seat of the utility model;

[0018] Figure 4 This is an exploded schematic diagram of the structure between the polygonal connecting column and the movable sleeve of the utility model;

[0019] Figure 5 This is an exploded schematic diagram of the support leg and telescopic sleeve structure of the utility model.

[0020] In the figure: 1. UAV body; 2. Mounting seat; 3. Card slot; 4. Connecting seat; 5. Adjusting screw; 6. Follower plate; 7. Connecting rod; 8. Sliding through hole; 9. Card block; 10. Limiting slot; 11. Limiting block; 12. Positioning block; 13. Positioning slot; 14. Polygonal connecting column; 15. Movable sleeve; 16. Fixed seat; 17. Storage slot; 18. Compression spring; 19. Card head; 20. Limiting through hole; 21. Support leg; 22. Buffer leg; 23. Damper No. 1; 24. Buffer spring; 25. Connecting rod; 26. Damper No. 2; 27. Reset spring; 28. Telescopic sleeve. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.

[0022] The utility model provides a technical solution: Figure 1-3As shown, in this embodiment, an aluminum alloy protective bracket based on a rotor UAV includes a UAV body 1, a mounting base 2 is fixedly connected to the bottom end of the UAV body 1, a connecting base 4 is arranged inside the mounting base 2, an adjusting screw rod 5 is rotatably connected to the inside of the connecting base 4, and the outer surface of the adjusting screw rod 5 is threadedly connected to a driven plate 6. The outer surface of the driven plate 6 is slidably arranged inside the connecting base 4, and four sliding through holes 8 are opened through the outer surface of the connecting base 4. The four sliding through holes 8 are all slidably connected with a card block 9, and the bottom ends of the four card blocks 9 are rotatably connected to a connecting rod 7, and the other ends of the four connecting rods 7 are rotatably connected to the top of the driven plate 6, and four card slots 3 are opened on the inner surface of the mounting base 2. One end of the four card blocks 9 is respectively plugged into the inside of the four card slots 3. Among them, by setting the driven plate 6, the connecting rod 7 can be driven to move up and down under the action of the adjusting screw rod 5, so that the connecting rod 7 can push or pull the card block 9 to move in the sliding through hole 8, thereby achieving the fixing and disassembly effect.

[0023] like Figure 3 and Figure 5 As shown, the bottom end of the connecting seat 4 is rotatably connected to four supporting legs 21, and buffer legs 22 are slidably set inside the four supporting legs 21. The top of the four buffer legs 22 is fixedly connected to a No. 1 damper 23, and the outer surfaces of the four No. 1 dampers 23 are sleeved with buffer springs 24. The other end of the No. 1 damper 23 is fixedly connected to the top surface of the inner part of the supporting leg 21. By setting the buffer spring 24, the force exerted on the buffer leg 22 can be absorbed to achieve a buffering effect. By setting the No. 1 damper 23, the speed at which the buffer spring 24 recovers its elastic deformation can be slowed down to prevent a large reaction force from being generated on the drone body 1.

[0024] like Figure 5 As shown, a connecting rod 25 is rotatably connected between two adjacent support legs 21, and the other ends of the four connecting rods 25 are respectively slidably connected to two telescopic sleeves 28. Two No. 2 dampers 26 are fixedly connected inside the two telescopic sleeves 28, and the other ends of the four No. 2 dampers 26 are respectively fixedly connected to one end of the four connecting rods 25. The outer surfaces of the four No. 2 dampers 26 are all sleeved with return springs 27, which can generate force when the drone body 1 lands to make the four support legs 21 unfold, effectively increasing the contact area between the drone body 1 and the bottom ground, making it more stable when landing.

[0025] like Figure 3 and Figure 4 As shown, the bottom end of the adjusting screw rod 5 passes through the inner bottom surface of the connecting seat 4 and is fixedly connected to a polygonal connecting column 14. The outer surface of the polygonal connecting column 14 is slidably connected to a movable sleeve 15. The top of the movable sleeve 15 is inserted with a fixed seat 16. The top of the fixed seat 16 is fixedly connected to the bottom end of the connecting seat 4. Through the cooperation between the movable sleeve 15 and the fixed seat 16, the adjusting screw rod 5 can be fixed.

[0026] like Figure 5As shown, a receiving groove 17 is provided on the outer surface of the polygonal connecting column 14, and a pressure spring 18 is fixedly connected to the inside of the receiving groove 17. One end of the pressure spring 18 is fixedly connected to a clamp 19. A limiting through hole 20 is provided through the outer surface of the movable sleeve 15. The outer surface of the clamp 19 is plugged into the inside of the limiting through hole 20, which can fix the movable sleeve 15 so that it is stably located inside the fixing seat 16 and is difficult to fall off easily.

[0027] like Figure 3 As shown, two limiting grooves 10 are provided on the inner surface of the connecting seat 4, and two limiting blocks 11 are fixedly connected to the outer surface of the driven plate 6. The outer surfaces of the two limiting blocks 11 are respectively slidably connected to the inside of the two limiting grooves 10, which can position the driven plate 6 and improve stability.

[0028] like Figure 2 and Figure 3 As shown, a positioning block 12 is fixedly connected to the outer surface of the connecting seat 4, and a positioning groove 13 is provided on the inner surface of the mounting seat 2. The outer surface of the positioning block 12 is plugged into the inside of the positioning groove 13, which can position the connecting seat 4 so that it will not rotate relative to the mounting seat 2.

[0029] This utility model provides an aluminum alloy protective bracket based on a rotary wing UAV, and the specific working principle is as follows:

[0030] When the drone body 1 lands, the impact force generated by the landing of the drone body 1 pushes the buffer leg 22 into the support leg 21, and the buffer spring 24 contracts and converts the impact force into elastic potential energy for storage. When the buffer spring 24 recovers its elastic deformation, the No. 1 damper 23 limits the recovery speed of the buffer spring 24, so that the buffer leg 22 slowly resets, cushioning the drone body 1. At the same time, during the landing process of the drone body 1, the pressure of the drone body 1 on the support leg 21 causes it to unfold, greatly improving the contact area between the drone body 1 and the ground. To prevent tipping, when the protective bracket needs to be replaced, the staff pulls the movable sleeve 15, and the clamping head 19 withdraws from the limiting through hole 20 under the action of the pulling force and enters the inside of the receiving groove 17. After the movable sleeve 15 is pulled out, the movable sleeve 15 is rotated to drive the adjusting screw rod 5 to rotate, so that the driven plate 6 moves downward again under the drive of the adjusting screw rod 5. The movement of the driven plate 6 drives the connecting rod 7 to move and pulls the card block 9 to slide in the sliding through hole 8, so that the card block 9 disengages from the card slot 3 to release the restriction between the mounting seat 2 and the connecting seat 4, so that the protective bracket can be quickly disassembled.

[0031] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An aluminum alloy protective bracket based on a rotary wing UAV, comprising a UAV body (1), characterized in that: The bottom end of the drone body (1) is fixedly connected to a mounting seat (2), a connecting seat (4) is provided inside the mounting seat (2), an adjusting screw rod (5) is rotatably connected inside the connecting seat (4), the outer surface of the adjusting screw rod (5) is threadedly connected to a driven plate (6), the outer surface of the driven plate (6) is slidably provided with the inside of the connecting seat (4), four sliding through holes (8) are provided through the outer surface of the connecting seat (4), a clamping block (9) is slidably connected inside the four sliding through holes (8), the bottom ends of the four clamping blocks (9) are rotatably connected to a connecting rod (7), the other ends of the four connecting rods (7) are rotatably connected to the top end of the driven plate (6), the inner surface of the mounting seat (2) is provided with four card slots (3), one end of the four card blocks (9) is respectively plugged into the inside of the four card slots (3).

2. The aluminum alloy protective bracket for a rotary-wing UAV according to claim 1, characterized in that: The bottom end of the connecting seat (4) is rotatably connected to four supporting legs (21), and buffer legs (22) are slidably provided inside the four supporting legs (21). The top ends of the four buffer legs (22) are fixedly connected to a No. 1 damper (23), and the outer surfaces of the four No. 1 dampers (23) are sleeved with buffer springs (24), and the other end of the No. 1 damper (23) is fixedly connected to the inner top surface of the supporting leg (21).

3. The aluminum alloy protective bracket for a rotary-wing UAV according to claim 2, characterized in that: A connecting rod (25) is rotatably connected between two adjacent supporting legs (21), and the other ends of the four connecting rods (25) are respectively slidably connected to two telescopic sleeves (28), and the interiors of the two telescopic sleeves (28) are fixedly connected to two No. 2 dampers (26), and the other ends of the four No. 2 dampers (26) are respectively fixedly connected to one end of the four connecting rods (25), and the outer surfaces of the four No. 2 dampers (26) are respectively sleeved with return springs (27).

4. The aluminum alloy protective bracket for a rotary-wing UAV according to claim 1, characterized in that: The bottom end of the adjusting screw rod (5) passes through the inner bottom surface of the connecting seat (4) and is fixedly connected to a polygonal connecting column (14); the outer surface of the polygonal connecting column (14) is slidably connected to a movable sleeve (15); the top end of the movable sleeve (15) is plugged into a fixed seat (16); the top end of the fixed seat (16) is fixedly connected to the bottom end of the connecting seat (4).

5. The aluminum alloy protective bracket for a rotary-wing UAV according to claim 4, characterized in that: The outer surface of the polygonal connecting column (14) is provided with a receiving groove (17), the interior of the receiving groove (17) is fixedly connected with a pressure spring (18), one end of the pressure spring (18) is fixedly connected with a clamp (19), the outer surface of the movable sleeve (15) is provided with a limiting through hole (20), and the outer surface of the clamp (19) is plugged into the interior of the limiting through hole (20).

6. The aluminum alloy protective bracket for a rotary-wing UAV according to claim 1, characterized in that: The inner surface of the connecting seat (4) is provided with two limiting grooves (10), the outer surface of the driven plate (6) is fixedly connected with two limiting blocks (11), and the outer surfaces of the two limiting blocks (11) are respectively slidably connected to the inside of the two limiting grooves (10).

7. The aluminum alloy protective bracket for a rotary-wing UAV according to claim 6, characterized in that: The outer surface of the connecting seat (4) is fixedly connected to a positioning block (12), the inner surface of the mounting seat (2) is provided with a positioning groove (13), and the outer surface of the positioning block (12) is plugged into the interior of the positioning groove (13).

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