Damping device for agricultural unmanned aerial vehicle

Abstract

The utility model provides an agricultural unmanned aerial vehicle damping device which comprises an unmanned aerial vehicle body, a pesticide box is arranged at the bottom of the unmanned aerial vehicle body, a waterproof space is arranged at the bottom in the pesticide box, a pump body is arranged in the waterproof space, a water suction pipe on the pump body is communicated with the pesticide box, and a water outlet pipe on the pump body penetrates out of the pesticide box. Compared with the prior art, the pesticide box has the advantages that when the pesticide box vibrates, the connecting rod and the piston piece on the connecting rod are in a working state and move up and down relative to the interior of the round shell, and compressed air is introduced from the upper end of the round shell and is located in the space of the upper surface of the piston piece; the piston piece is buffered by compressed air in the upward moving process, vibration of the medicine feeding box is weakened, the air bag ring can transversely contract or expand when the air bag ring moves up and down along with the piston piece, and it can be further guaranteed that the air bag ring achieves the double buffering effect when the piston piece moves up and down.

Description

Technical Field

[0001] The utility model relates to a shock absorption device for agricultural drones, belonging to the field of drones. Background Technique

[0002] With the progress of society and the modern development of all walks of life, the role of drones in social production and life has become increasingly prominent, especially in the agricultural field, where they are used more and more widely. Agricultural plant protection drones have special structures: such as the support rods in the spraying system. Since a large spraying width needs to be ensured, long tubular parts are usually used. The vibration transmitted from the airframe during flight operations is extremely easy to be amplified. Since the medicine box is usually suspended at the bottom of the airframe and relatively high landing gears are usually used, the vibration transmitted from the airframe is also extremely easy to be amplified during flight operations. Therefore, it is very necessary to set a shock absorption device between the main body of the existing drone and the structures and components that are prone to vibration to reduce the impact of vibration on flight.

[0003] The components used for shock absorption of existing agricultural plant protection drones are all springs, and the springs are used to achieve the desired shock absorption effect. However, the energy transfer between the airframe and the external mechanism is only transmitted by the springs. When the attitude of the drone airframe changes rapidly, the springs will swing radially, thereby causing the mechanism connected to the other end of the shock absorption device to shake, affecting the flight stability of the drone. Therefore, this application proposes a shock absorption device for agricultural drones that eliminates the use of springs. Content of the Utility Model

[0004] Aiming at the deficiencies of the existing technology, the purpose of the utility model is to provide a shock absorption device for agricultural drones.

[0005] In order to achieve the above purpose, the utility model is realized by the following technical solutions:

[0006] A shock absorption device for agricultural drones includes a drone body. A medicine box is arranged at the bottom of the drone body. A water isolation space is arranged at the inner bottom of the medicine box. A pump body is arranged in the water isolation space. The suction pipe on the pump body is communicated with the medicine box. The water outlet pipe on the pump body penetrates through the medicine box, and a plurality of soft pipes are connected to a plurality of spray pipes on the water outlet pipe. The spray pipes are installed on the outer side surface of the medicine box. A landing gear is installed at the bottom end of the drone body. An installation cross plate is fixedly arranged on the landing gear. A circular shell is arranged above the installation cross plate. The medicine box is installed at the outer top end of the circular shell. An air valve port is arranged on the circular shell. A piston part is arranged inside the circular shell. A connecting rod that penetrates through the bottom end of the medicine box is fixedly arranged at the bottom end of the piston part. The connecting rod is connected to the installation cross plate.

[0007] Furthermore, the piston part includes a sealing circular plate located inside the circular shell, and a rubber sealing ring is fixedly arranged on the circular outer surface of the sealing circular plate.

[0008] Furthermore, an airbag ring is fixedly provided at the bottom end of the sealing circular plate. The bottom end of the airbag ring is fixedly connected to the inner bottom end of the circular shell. A circular groove for the sliding penetration of the connecting rod is formed in the middle of the airbag ring.

[0009] Furthermore, an inflation tube fixedly penetrating through the airbag ring is provided on the airbag ring. An inflation valve is provided on the inflation tube. A plurality of sleeves are fixedly provided at the top end of the installation cross plate. A plurality of insertion rods inserted into the inside of the sleeves are fixedly provided at the bottom end of the circular shell. A buffer airbag is provided inside the sleeve. The bottom end of the insertion rod fixes the buffer airbag.

[0010] Furthermore, a through tube is fixedly provided in the middle of the bottom end of the circular shell. A ball is movably embedded inside the through tube. Three-fifths of the volume of the ball is embedded inside the through tube. The connecting rod penetrates through the through tube, and the outer surface of the connecting rod is in contact with the ball.

[0011] Furthermore, a square enclosure board is fixedly provided on the inner side of the lifting footrest. A secondary airbag ring is pasted on the inner side of the square enclosure board.

[0012] Furthermore, a secondary inflation tube fixedly penetrating through the square enclosure board is provided on the airbag ring. An inflation valve is also provided on the secondary inflation tube.

[0013] The beneficial effects of the present utility model:

[0014] The medicine box is fixed at the top end of the circular shell. The bottom end of the connecting rod is fixed on the installation cross plate. A space is formed between the top end of the sealing circular plate and the inner top end of the circular shell. An air valve port is designed on the outer wall of the circular shell of this space. Compressed air can be introduced through the air valve port. When the medicine box vibrates, the connecting rod and the piston part thereon are in a working state, moving up and down relative to the inside of the circular shell. Since the compressed air is introduced from the upper end of the circular shell, the compressed air is located in the space on the upper surface of the piston part. Specifically, when the medicine box vibrates, during the upward movement of the piston part, it is buffered by the compressed air, weakening the vibration of the medicine box thereon.

[0015] With the design of the airbag ring, when moving up and down with the piston part, the airbag ring can contract or expand horizontally, which can further ensure that the airbag ring realizes the double buffering effect when the piston part moves up and down. Description of the Drawings

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required to be used in the embodiments. Obviously, the following described drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0017] Figure 1This is the front view of a shock absorption device for an agricultural drone of the present utility model;

[0018] Figure 2 This is a schematic diagram of the landing leg of a shock absorption device for an agricultural drone of the present utility model;

[0019] Figure 3 This is a schematic diagram of the interior of the circular shell of a shock absorption device for an agricultural drone of the present utility model;

[0020] Figure 4 This is a schematic diagram of the piston part of a shock absorption device for an agricultural drone of the present utility model;

[0021] Figure 5 This is a schematic diagram of the through cylinder of a shock absorption device for an agricultural drone of the present utility model.

[0022] In the figure: 1, the drone body; 2, the medicine box; 3, the water isolation space; 4, the pump body; 5, the pipeline; 6, the spray nozzle; 7, the landing leg; 8, the installation cross plate; 9, the circular shell; 10, the air valve port; 11, the connecting rod; 13, the airbag ring; 14, the circular groove; 15, the charging pipe; 16, the sleeve; 17, the through cylinder; 18, the ball; 19, the square enclosure; 20, the auxiliary airbag ring; 21, the auxiliary charging pipe; 22, the insertion rod; 23, the buffer airbag; 24, the sealing circular plate; 25, the rubber sealing ring. Detailed implementation manners

[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0024] Please refer to Figures 1-5, the present utility model provides a technical solution: an agricultural drone shock absorption device, including a drone body 1. A medicine box 2 is provided at the bottom of the drone body 1. A water isolation space 3 is arranged at the inner bottom of the medicine box 2. A pump body 4 is arranged in the water isolation space 3. The suction pipe on the pump body 4 communicates with the medicine box 2. The water outlet pipe on the pump body 4 penetrates through the medicine box 2, and a plurality of spray pipes 6 are connected to the water outlet pipe through a plurality of flexible pipes 5. The spray pipes 6 are installed on the outer side surface of the medicine box 2. A landing leg 7 is installed at the bottom end of the drone body 1. An installation cross plate 8 is fixedly arranged on the landing leg 7. A circular shell 9 is arranged above the installation cross plate 8. The medicine box 2 is installed at the outer top end of the circular shell 9. An air valve port 10 is arranged on the circular shell 9. A piston member is arranged inside the circular shell 9. A connecting rod 11 that penetrates through the bottom end of the medicine box 2 is fixedly arranged at the bottom end of the piston member. The connecting rod 11 is connected to the installation cross plate 8.

[0025] Refer to Figure 4 , the piston member includes a sealing circular plate 24 located inside the circular shell 9. A rubber sealing ring 25 is fixedly arranged on the circular outer surface of the sealing circular plate 24. The rubber sealing ring 25 designed on the outer surface of the sealing circular plate 24 contacts the inner wall of the circular shell to ensure a good sealing and extrusion effect.

[0026] Refer to Figures 3-4 , an airbag ring 13 is fixedly arranged at the bottom end of the sealing circular plate 24. The bottom end of the airbag ring 13 is fixedly connected to the inner bottom end of the circular shell 9. A circular groove 14 for the connecting rod 11 to slide through is opened in the middle of the airbag ring 13. The compression of the airbag ring 13 has a good shock absorption effect.

[0027] Refer to Figure 3 , an inflation pipe 15 that fixedly penetrates through the airbag ring 13 is arranged on the airbag ring 13. An inflation valve is arranged on the inflation pipe 15. A plurality of sleeves 16 are fixedly arranged at the top end of the installation cross plate 8. A plurality of insertion rods 22 that are inserted into the inside of the sleeves 16 are fixedly arranged at the bottom end of the circular shell 9. A buffer airbag 23 is arranged inside the sleeve 16. The bottom end of the insertion rod 22 fixes the buffer airbag 23. The design of the inflation pipe 15 can ensure the subsequent inflation of the airbag ring 13. And during the moving shock absorption process, the designed insertion rod 22 squeezes the buffer airbag 23 to further improve the shock absorption effect. An inflation pipe is also designed on the buffer airbag 23, and this pipe penetrates through the sleeve 16.

[0028] Refer to Figure 5, a through cylinder 17 is fixedly provided in the middle of the bottom end of the circular shell 9. A ball 18 is movably embedded in the through cylinder 17. Three-fifths of the volume of the ball 18 is embedded in the through cylinder 17. The connecting rod 11 passes through the through cylinder 17, and the outer surface of the connecting rod 11 is in contact with the ball 18. The connecting rod 11 is in contact with the ball 18 to ensure better movement stability of the connecting rod.

[0029] Refer to Figure 2 , a square enclosure 19 is fixedly provided inside the lifting footrest 7. A secondary airbag ring 20 is pasted inside the square enclosure 19. A secondary inflation tube 21 that is fixedly passed through the square enclosure 19 is provided on the airbag ring 13. An inflation valve is also provided on the secondary inflation tube 21. The secondary airbag ring 20 inside the square enclosure 19 slightly contacts and wraps the medicine box to ensure the front, back, left, and right shock absorption of the medicine box, and this design does not affect the use of the shock-absorbing components inside the subsequent circular shell 9.

[0030] During specific operation, the medicine box 2 is fixed at the top end of the circular shell 9. The bottom end of the connecting rod 11 is fixed on the mounting cross plate 8. A space is formed between the top end of the sealing circular plate 24 and the inner top end of the circular shell 9. An air valve port 10 is designed on the outer wall of the circular shell 9 of this space, and compressed air can be introduced through the air valve port. When the medicine box vibrates, the connecting rod 11 and the piston member thereon are in a working state and move up and down relative to the inside of the circular shell 9. Since the compressed air is introduced from the upper end of the circular shell 9, the compressed air is located in the space above the piston member. Specifically, when the medicine box vibrates, during the upward movement of the piston member, it is buffered by the compressed air, weakening the vibration of the medicine box thereon.

[0031] With the design of the airbag ring 13, when the piston member moves up and down, the airbag ring 13 can contract or expand horizontally, which can further ensure that the airbag ring 13 realizes a double buffering effect when the piston member moves up and down.

[0032] Although this specification is described according to the embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A shock absorbing device for an agricultural drone, characterized in that: The invention comprises an unmanned aerial vehicle (UAV) body (1), wherein a medicine box (2) is provided at the bottom of the UAV body (1), a watertight space (3) is provided at the bottom of the medicine box (2), a pump body (4) is provided in the watertight space (3), a water suction pipe on the pump body (4) is connected to the medicine box (2), a water outlet pipe on the pump body (4) passes through the medicine box (2), and a plurality of nozzles (6) are connected to the water outlet pipe via a plurality of soft pipes (5), and the nozzles (6) are installed on the outer side of the medicine box (2). A landing frame (7) is installed at the bottom end of the machine body (1), a mounting cross plate (8) is fixedly provided on the landing frame (7), a round shell (9) is arranged above the mounting cross plate (8), the medicine box (2) is installed at the outer top end of the round shell (9), an air valve port (10) is arranged on the round shell (9), a piston member is arranged inside the round shell (9), a connecting rod (11) passing through the bottom end of the medicine box (2) is fixedly provided at the bottom end of the piston member, and the connecting rod (11) is connected to the mounting cross plate (8).

2. The shock absorbing device for agricultural drone according to claim 1, characterized in that: The piston member comprises a sealing circular plate (24) located inside the circular shell (9), and a rubber sealing ring (25) is fixedly provided on the circular outer surface of the sealing circular plate (24).

3. The shock absorbing device for agricultural drone according to claim 2, characterized in that: An airbag ring (13) is fixedly provided at the bottom end of the sealing circular plate (24), and the bottom end of the airbag ring (13) is fixedly connected to the inner bottom end of the circular shell (9). A circular groove (14) is provided in the middle of the airbag ring (13) for the connecting rod (11) to slide through.

4. The shock absorbing device for agricultural UAV according to claim 3, characterized in that: The airbag ring (13) is provided with an inflation tube (15) which is fixedly passed through the airbag ring (13), and the inflation tube (15) is provided with an inflation valve. A plurality of sleeves (16) are fixedly provided at the top of the mounting horizontal plate (8), and a plurality of insertion rods (22) which are inserted into the sleeves (16) are fixedly provided at the bottom of the round shell (9). A cushion airbag (23) is provided inside the sleeve (16), and the cushion airbag (23) is fixed at the bottom of the insertion rod (22).

5. The shock absorbing device for agricultural UAV according to claim 4, characterized in that: A through-tube (17) is fixedly provided at the middle of the bottom end of the circular shell (9), and a ball (18) is movably embedded inside the through-tube (17). Three-fifths of the volume of the ball (18) is embedded inside the through-tube (17). The connecting rod (11) penetrates the through-tube (17), and the outer surface of the connecting rod (11) is arranged in contact with the ball (18).

6. The shock absorbing device for agricultural UAV according to claim 5, characterized in that: A square enclosure (19) is fixedly provided on the inner side of the landing frame (7), and a secondary airbag ring (20) is glued on the inner side of the square enclosure (19).

7. The shock absorbing device for an agricultural UAV according to claim 6, characterized in that: The airbag ring (13) is provided with an auxiliary inflation pipe (21) which is fixedly passed through the square enclosure plate (19), and the auxiliary inflation pipe (21) is also provided with an inflation valve.

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