A large and medium-sized agricultural unmanned aerial vehicle hanging structure

Abstract

The utility model discloses a middle -large -scale agricultural unmanned plane is with the structure of hanging down under a kind of agricultural unmanned plane technical field, including the body of agricultural unmanned plane, the body around is respectively equipped with fixed link by bolt, the fixed link one end is equipped with airfoil by mounting bracket, the body inside is equipped with the spray rod for spraying, the spray rod one end is equipped with extension rod by connecting piece, the spray rod and extension rod bottom even screw connection installation are equipped with spray head, the body both sides are respectively equipped with the fixed part for supporting spray rod, fixed link is supported and is installed to airfoil by mounting bracket, airfoil quick rotation can drive body and spray rod to fly, make the spray head of spray rod and extension rod bottom carry out the pesticide application to crop, the fixed part of body both sides can support and tow down hanging fixed spray rod, prevent body to shake in the flight process spray rod.

Description

Technical Field

[0001] This utility model relates to the field of agricultural drones, specifically a bottom-mounted structure for medium and large-sized agricultural drones. Background Technology

[0002] With the development of modern agricultural mechanization and intelligence, medium and large agricultural drones have become core equipment for large-scale farmland pest and disease control and fertilization operations due to their high payload (50-200L) and high operating efficiency. Especially in spraying operations, they achieve pesticide atomization spraying through the under-mounted spray boom assembly, which greatly reduces labor costs and labor intensity and improves the uniformity of operations. The under-mounted structure of medium and large agricultural drones, as the core load-bearing and installation foundation for operating components such as the spray boom and pesticide tank, directly affects the spraying effect and equipment lifespan due to its stability, ease of storage, and body support performance. However, the existing under-mounted structures of medium and large agricultural drones are limited by design and cannot meet the needs of efficient and stable operations.

[0003] Existing under-mounted structures mostly use simple boom-type or single-axis hinged support for the spray boom, and the load is concentrated after multiple atomizing nozzles are mounted. When the UAV is flying, it is affected by airflow disturbance, engine vibration and the center of gravity shift caused by pesticide consumption. The spray boom is prone to lateral swing and longitudinal sway, which not only causes uneven pesticide spraying, but may also cause the spray boom to collide with crops or ground obstacles due to swaying, resulting in the spray boom bending and nozzle damage, which seriously affects the continuity and safety of operation.

[0004] Large and medium-sized drone spray booms have a large unfolded size to accommodate the working width, and need to be folded and stored during transportation or storage. Existing folding structures are mostly manually fixed with bolts or connected with simple hinges. The folding process requires manual removal of bolts and adjustment of the spray boom angle, and lacks a reliable locking and positioning mechanism. After folding, the spray boom is prone to loosening and displacement due to transportation bumps or external force.

[0005] Existing undermount structures for medium and large agricultural drones mostly focus on the function of mounting the spray boom, without integrating an integrated landing support design, or simply using simple outriggers directly fixed to the fuselage. During landing, if the farmland ground is uneven (such as furrows or protruding stones), or if the impact force of the landing is large, the simple support structure is prone to violent shaking due to uneven force, and may even cause the drone to tip over and be damaged. Therefore, it is necessary to design an undermount structure for medium and large agricultural drones to solve the above problems. Utility Model Content

[0006] The purpose of this utility model is to provide a bottom-mounted structure for medium and large-sized agricultural drones to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a bottom-mounted structure for medium and large-sized agricultural drones, comprising the body of the agricultural drone, with fixing rods bolted to each of the four sides of the body, a wing mounted at one end of each fixing rod via a mounting bracket, a spray bar for spraying pesticides installed inside the body, an extension rod mounted at one end of each spray bar via a connector, a nozzle evenly screwed to the bottom of the spray bar and the extension rod, fixing components for supporting the spray bar mounted on both sides of the body, and a support component for supporting the landing of the drone mounted at the bottom of each fixing rod.

[0008] Preferably, the fixing component includes a fixing frame that is bolted to both sides of the machine body. A pull rod is hinged to one side of the fixing frame, and a buckle frame is hinged to one end of the pull rod. A movable frame is fitted on the outside of the buckle frame, and a screw is installed through the top of the buckle frame. The screw passes through the movable frame and is screwed to it.

[0009] Preferably, the connector includes fixing rings welded to both ends of the spray bar, a fixing post screwed onto the inner side of the fixing ring, the top of the fixing post being screwed with a nut, a connecting ring being fitted onto the top of the fixing post, the connecting ring being welded and fixed to the extension rod, and the connecting ring being rotatably connected to the fixing ring.

[0010] Preferably, the support includes a mounting ring that is fitted and screwed to the outside of the fixing rod. A support rod is screwed to the bottom of the mounting ring, a fixing seat is screwed to the bottom of the support rod, and support feet are screwed to both ends of the fixing seat.

[0011] Preferably, the bottom of the screw has a fixed part integrally formed, and the fixed part is rotatably connected to the buckle frame.

[0012] Preferably, a retaining ring is fitted on the outer side of the screw, and the retaining ring is screwed to the screw.

[0013] Preferably, a protective pad is embedded at the bottom of the buckle frame.

[0014] Compared with the prior art, the beneficial effects of this utility model are: 1. The spray boom and extension rod are unfolded and folded away using connectors. The fully unfolded length of the extension rod and spray boom is 16 meters. There are six fixed rods, which are supported and installed on the wings via mounting brackets. Rapid rotation of the wings can propel the fuselage and spray boom into flight, allowing the nozzles at the bottom of the spray boom and extension rod to spray crops. The fixed parts on both sides of the fuselage can support and tug the spray boom under the fuselage to prevent it from swaying during flight. The support parts at the bottom of the fixed rods can support the fuselage to prevent it from tilting and being damaged by violent vibrations during landing.

[0015] 2. The fixed frame can provide hinged support for the tie rod. The tie rod supports the spray boom through the hinged buckle frame. The screw can rotate on the top of the buckle frame, causing the screw to drive the movable frame to move upward. The movable frame and the buckle frame clamp and fix the spray boom, thereby pulling and fixing the spray boom with the tie rod, improving the stability of the supported spray boom. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a left-side sectional perspective view of the overall structure of this utility model; Figure 3 The overall structure of this utility model Figure 2 Enlarged view of point A in the middle; Figure 4 The overall structure of this utility model Figure 2 Enlarged view at point B in the middle; Figure 5 The overall structure of this utility model Figure 2 Enlarged view of point C in the middle.

[0017] In the diagram: 1. Airframe; 2. Fixing rod; 3. Mounting bracket; 4. Wing; 5. Spray boom; 6. Extension rod; 7. Nozzle; 8. Fixing bracket; 9. Pull rod; 10. Clip bracket; 11. Movable bracket; 12. Screw; 13. Fixing ring; 14. Fixing column; 15. Connecting ring; 16. Mounting ring; 17. Support rod; 18. Fixing seat; 19. Support foot; 20. Fixing part; 21. Anti-reverse ring; 22. Protective pad. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Example 1 Please refer to Figure 1-5 As shown, this utility model provides a lower-mounted structure for medium and large agricultural drones, including the body 1 of the agricultural drone, with fixing rods 2 bolted around the body 1, and a wing 4 mounted on one end of the fixing rods 2 via a mounting bracket 3. A spray bar 5 for spraying pesticides is installed inside the body 1, and an extension rod 6 is mounted on one end of the spray bar 5 via a connector. Spray nozzles 7 are evenly screwed onto the bottom of the spray bar 5 and the extension rod 6. Fixing components for supporting the spray bar 5 are installed on both sides of the body 1, and a support component for supporting the landing of the body 1 is installed at the bottom of the fixing rods 2.

[0020] Furthermore, the spray boom 5 and extension rod 6 are unfolded and folded away through connectors. The fully unfolded length of the extension rod 6 and spray boom 5 is 16 meters. There are six fixed rods 2. The fixed rods 2 are supported and installed on the wings 4 through the mounting bracket 3. The rapid rotation of the wings 4 can drive the fuselage 1 and spray boom 5 to fly, so that the nozzles 7 at the bottom of the spray boom 5 and extension rod 6 can spray pesticides on crops. The fixed parts on both sides of the fuselage 1 can support and pull the spray boom 5 to fix it, preventing the spray boom 5 from shaking during the flight of the fuselage 1. The support parts at the bottom of the fixed rod 2 can support the fuselage 1 and avoid the fuselage 1 from being damaged by tilting vibration when landing.

[0021] Specifically, the fasteners include a fixing bracket 8 that is bolted to both sides of the body 1. A pull rod 9 is hinged to one side of the fixing bracket 8, and a buckle bracket 10 is hinged to one end of the pull rod 9. A movable bracket 11 is fitted on the outside of the buckle bracket 10. A screw 12 is installed through the top of the buckle bracket 10. The screw 12 passes through the movable bracket 11 and is screwed to it. A backstop ring 21 is fitted on the outside of the screw 12. The backstop ring 21 is screwed to the screw 12. A protective pad 22 is embedded at the bottom of the buckle bracket 10.

[0022] In addition, the fixing frame 8 can provide hinged support for the tie rod 9. The tie rod 9 supports the spray bar 5 through the hinged buckle frame 10. The screw 12 can rotate on the top of the buckle frame 10, so that the screw 12 drives the movable frame 11 to move upward. The movable frame 11 and the buckle frame 10 clamp and fix the spray bar 5, thereby pulling and fixing the spray bar 5 with the tie rod 9, improving the stability of supporting the spray bar 5.

[0023] Furthermore, the fixing part 20 limits and fixes the screw 12 to prevent the screw 12 from loosening or falling off, the protective pad 22 at the bottom of the buckle frame 10 protects the spray bar 5 from wear, and the anti-reverse ring 21 on the outside of the screw 12 fixes the buckle frame 10 to prevent it from falling back, thereby improving the stability of the buckle frame 10 and the movable frame 11 in installing the spray bar 5.

[0024] The connector includes a fixing ring 13 welded to both ends of the spray bar 5. A fixing post 14 is screwed onto the inner side of the fixing ring 13. The top of the fixing post 14 is screwed with a nut. A connecting ring 15 is fitted onto the top of the fixing post 14. The connecting ring 15 is welded and fixed to the extension rod 6. The connecting ring 15 is rotatably connected to the fixing ring 13. A fixing part 20 is integrally formed at the bottom of the screw 12. The fixing part 20 is rotatably connected to the buckle frame 10.

[0025] More specifically, the spray bar 5 and the extension bar 6 can be connected and supplied with medicine through an external rubber tube. The connecting ring 15 has a notch on one side to provide space for the connecting ring 15 to rotate outside the fixing post 14. The fixing post 14 passes through the fixing ring 13 and is installed and fixed by a nut. The nut presses down and fixes the connecting ring 15. The extension bar 6 rotates around the outside of the fixing post 14 through the connecting ring 15 so that the extension bar 6 and the spray bar 5 can be connected and flipped and folded.

[0026] As should be added, the support includes a mounting ring 16 that is fitted and screwed to the outside of the fixing rod 2. A support rod 17 is screwed to the bottom of the mounting ring 16. A fixing seat 18 is screwed to the bottom of the support rod 17. Support feet 19 are screwed to both ends of the fixing seat 18.

[0027] The mounting ring 16 and the fixing seat 18 are both T-shaped. The mounting ring 16 is screwed and fixed on the outside of the fixing rod 2. Then, the support rod 17 is screwed and installed with the mounting ring 16 and the fixing seat 18. The support feet 19 screwed on both ends of the fixing seat 18 can increase the support area of ​​the fixing seat 18 and improve the stability of the support body 1.

[0028] Working principle: First, the movable frame 11 is placed on the outside of the spray bar 5. Then, the screw 12 is turned on the top of the buckle frame 10. At the same time, the fixing part 20 at the bottom of the screw 12 rotates inside the buckle frame 10. At this time, the screw 12 drives the movable frame 11 to move upward. Then, the movable frame 11 and the buckle frame 10 clamp and fix the spray bar 5. At the same time, the protective pad 22 at the bottom of the buckle frame 10 protects the spray bar 5 from wear. At this time, the fixing frames 8 on both sides of the machine body 1 provide hinge support for the pull rod 9. At the same time, the pull rod 9 supports the spray bar 5 through the hinged buckle frame 10.

[0029] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0030] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A bottom-mounted structure for medium-to-large agricultural unmanned aerial vehicles (UAVs), comprising the body (1) of the agricultural UAV, characterized in that: The body (1) is equipped with fixing rods (2) by bolts on all four sides. One end of the fixing rod (2) is equipped with a wing (4) by a mounting bracket (3). The body (1) is equipped with a spray bar (5) for spraying medicine. One end of the spray bar (5) is equipped with an extension rod (6) by a connector. The bottom of the spray bar (5) and the extension rod (6) are evenly screwed with nozzles (7). The body (1) is equipped with fixing parts for supporting the spray bar (5) on both sides. The bottom of the fixing rod (2) is equipped with a support part for supporting the landing of the body (1).

2. The under-mount structure for medium and large agricultural drones according to claim 1, characterized in that: The fastener includes a fixing frame (8) that is bolted to both sides of the body (1). A pull rod (9) is hinged to one side of the fixing frame (8). A buckle frame (10) is hinged to one end of the pull rod (9). A movable frame (11) is fitted on the outside of the buckle frame (10). A screw (12) is installed through the top of the buckle frame (10). The screw (12) passes through the movable frame (11) and is screwed to it.

3. The under-mount structure for medium and large agricultural drones according to claim 2, characterized in that: The connector includes a fixing ring (13) welded to both ends of the spray bar (5). A fixing post (14) is screwed onto the inner side of the fixing ring (13). The top of the fixing post (14) is screwed with a nut. A connecting ring (15) is fitted onto the top of the fixing post (14). The connecting ring (15) is welded and fixed to the extension rod (6). The connecting ring (15) is rotatably connected to the fixing ring (13).

4. The under-mount structure for medium and large agricultural drones according to claim 3, characterized in that: The support includes a mounting ring (16) that is fitted and screwed to the outside of the fixing rod (2). A support rod (17) is screwed to the bottom of the mounting ring (16). A fixing seat (18) is screwed to the bottom of the support rod (17). Support feet (19) are screwed to both ends of the fixing seat (18).

5. The under-mount structure for medium and large agricultural drones according to claim 2, characterized in that: The bottom of the screw (12) has a fixed part (20) integrally formed, and the fixed part (20) is rotatably connected to the buckle frame (10).

6. The under-mount structure for medium and large-sized agricultural drones according to claim 5, characterized in that: A retaining ring (21) is fitted on the outside of the screw (12), and the retaining ring (21) is screwed to the screw (12).

7. The under-mount structure for medium and large agricultural drones according to claim 2, characterized in that: The buckle bracket (10) has a protective pad (22) embedded at the bottom.

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