Beveled connection frame for plant protection unmanned aerial vehicle and unmanned aerial vehicle

Abstract

The utility model discloses a beveled connection frame for a plant protection unmanned aerial vehicle and the unmanned aerial vehicle, and relates to the technical field of unmanned aerial vehicles. The first square profile pipe, the second square profile pipe, the third square profile pipe and the fourth square profile pipe are sequentially connected in an end-to-end mode to form a frame structure, and the first end and the second end of the first square profile pipe are located at different horizontal heights. The first end of the first square profile pipe and the second end of the third square profile pipe are located at the same height, and the second end of the first square profile pipe and the first end of the third square profile pipe are located at the same height. The top face of the second square profile pipe and the top face of the fourth square profile pipe are both horizontally arranged. On the basis that strength and stability are guaranteed, a simple and efficient equipment installation mode is achieved, use of additional adjusting pieces is reduced as much as possible, and the production cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of unmanned aerial vehicles (UAVs), and in particular to a miter-jointed frame for a plant protection UAV and the UAV. Background Art

[0002] As an indispensable intelligent tool in modern agriculture, agricultural drones, with their efficient and precise operation capabilities, are gradually replacing traditional manual and ground-based mechanical operations, becoming a vital tool for farmland management and pest control. In the design and manufacture of agricultural drones, the frame structure is a key component, directly affecting the drone's load-bearing capacity, stability, and service life. Most agricultural drones currently on the market use a core frame design as the basic support structure for the frame, which connects and supports various equipment such as the power system, liquid sprayer, and electronic control unit.

[0003] Currently, in order to achieve the folding function of agricultural drones, the core frames of many agricultural drones are formed by tilting a horizontal rectangular frame. Specifically, a rectangular frame is welded on a plane using profiles, and the profiles are all placed horizontally on the plane. The rectangular frame is then tilted. Since the core frame is directly formed by tilting the horizontal frame, the tops of the connecting rods at different heights on the core frame are not set horizontally. This non-horizontal structural design causes significant inconvenience when installing other equipment. For example, in order to ensure that other equipment (such as liquid sprayers or cameras) are placed horizontally or vertically, it is usually necessary to use additional angle adjustment parts to adjust the installation angle of the equipment. This additional installation step not only increases the complexity of design and production, but also significantly increases manufacturing costs.

[0004] Furthermore, since angle adjustment components are typically movable, they are prone to loosening and wear over time, compromising the overall stability and reliability of the agricultural drone. In high-intensity operating environments (such as those encountered during agricultural spraying, which are subject to vibration, humidity, and corrosion), this additional mechanical adjustment mechanism can become a potential failure point. The complexity of the structure also makes maintenance more difficult, requiring specialized personnel, increasing maintenance costs and downtime, and reducing the overall efficiency of the drone.

[0005] Therefore, how to achieve a simple and efficient equipment installation method while ensuring strength and stability, minimize the use of additional adjustment parts, and reduce production costs has become a technical problem that needs to be solved urgently. Utility Model Content

[0006] The main purpose of the utility model is to provide a miter frame and drone for plant protection drones, aiming to achieve a simple and efficient equipment installation method while ensuring strength and stability, minimize the use of additional adjustment parts, and reduce production costs.

[0007] In order to achieve the above-mentioned purpose, the present invention proposes a miter frame for a plant protection drone, comprising:

[0008] A first square profile tube, a second square profile tube, a third square profile tube, and a fourth square profile tube are connected end to end in sequence to form a frame structure, wherein the first end and the second end of the first square profile tube are at different horizontal heights, the first end of the first square profile tube and the second end of the third square profile tube are at the same height, and the second end of the first square profile tube and the first end of the third square profile tube are at the same height; wherein the top surfaces of the second square profile tube and the fourth square profile tube are both horizontally arranged.

[0009] In one embodiment of the present application, the first square profile tube and the third square profile tube are parallel to each other.

[0010] In one embodiment of the present application, reinforcing ribs are provided in the first square profile tube and / or the second square profile tube and / or the third square profile tube and / or the fourth square profile tube.

[0011] In one embodiment of the present application, the inclination angle of the first square profile tube is A, 13°≥A≥11°.

[0012] In one embodiment of the present application, the bends of the frame structure are each provided with a mounting seat for mounting a rotor folding arm.

[0013] In one embodiment of the present application, a stand is provided at the bottom of the frame structure for supporting the frame structure so that the frame structure maintains a predetermined height.

[0014] In one embodiment of the present application, the first square profile tube is provided with two first arm tube clamps, which clamp the rotor folding arms connected to both ends of the first square profile tube; the third rectangular profile tube is provided with two second arm tube clamps, which clamp the rotor folding arms connected to both ends of the third rectangular profile tube.

[0015] In one embodiment of the present application, a weighing pad for detecting weight is provided on the first square profile tube and / or the third square profile tube.

[0016] The present application also discloses a drone, comprising the miter-jointed frame for a plant protection drone as described in any one of the above.

[0017] In one embodiment of the present application, a flight control module connected to the second square profile tube for controlling the flight of the UAV is also included.

[0018] The mitered frame provided by this technical solution forms a tilted structure by creating a height difference between the first square profile tube and the third rectangular profile tube. This improves overall load distribution and facilitates the folding of the rotor arms. Furthermore, the horizontal top surface design of the second and fourth square profile tubes provides a stable and simple installation platform, optimizing the UAV's equipment layout. The reduction in angle adjustment elements allows for more stable installation of other components, enabling this frame to withstand complex external forces during plant protection operations, improving the UAV's reliability and service life. This makes it particularly suitable for long-duration, heavy-load flight missions. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be described in detail below with reference to specific embodiments and accompanying drawings, wherein:

[0020] Figure 1 This is a schematic structural diagram of the first embodiment of the present utility model;

[0021] Figure 2 A side view of the drone.

[0022] 11. First square profile tube; 12. Second square profile tube; 13. Third square profile tube; 14. Fourth square profile tube; 20. Mounting base; 30. Tripod; 40. First arm tube clamp; 60. Folding rotor arm; 70. Flight control module. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention is described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the following specific embodiments are only used to explain the present invention and do not constitute a limitation to the present invention.

[0024] like Figures 1 to 2 As shown, in order to achieve the above-mentioned purpose, the present invention proposes a miter frame for a plant protection drone, comprising:

[0025] A first square profile tube 11, a second square profile tube 12, a third square profile tube 13, and a fourth square profile tube 14 are connected end to end in sequence to form a frame structure, the first end and the second end of the first square profile tube 11 are at different horizontal heights, the first end of the first square profile tube 11 and the second end of the third square profile tube 13 are at the same height, and the second end of the first square profile tube 11 and the first end of the third square profile tube 13 are at the same height; wherein, the top surfaces of the second square profile tube 12 and the fourth square profile tube 14 are both horizontally arranged.

[0026] Specifically, the inclined frame for the plant protection unmanned aerial vehicle comprises a first square profile pipe 11, a second square profile pipe 12, a third square profile pipe 13 and a fourth square profile pipe 14 connected in sequence to form a frame structure. Each square profile pipe is made of a metal material or a composite material with high strength, and is connected at the head and tail through a precise cutting and welding process to ensure the strength and stability of the overall frame.

[0027] The first end and the second end of the first square profile pipe 11 are at different horizontal heights, the first end is at the same height as the second end of the third square profile pipe 13, and the second end is at the same height as the first end of the third square profile pipe 13. Thus, the second square profile pipe 12 and the fourth square profile pipe 14 connected between the first square profile pipe 11 and the third square profile pipe 13 can be kept in a horizontal state.

[0028] The top surfaces of the second square profile pipe 12 and the fourth square profile pipe 14 are horizontally arranged. The horizontal design can ensure the overall structural balance of the unmanned aerial vehicle frame and provide a stable platform for the load arrangement of the unmanned aerial vehicle. At the same time, the horizontal top surface facilitates the installation of the core equipment of the unmanned aerial vehicle, such as the flight control module and the power control module, thereby realizing compact layout of functional modules and uniform weight distribution.

[0029] The first square profile pipe 11 and the second square profile pipe 12 are connected through precise welding to ensure that the strength of the joint can withstand the vibration and load generated during the flight of the unmanned aerial vehicle. The same connection method is adopted between the second square profile pipe 12 and the third square profile pipe 13, between the third square profile pipe 13 and the fourth square profile pipe 14, and between the fourth square profile pipe 14 and the first square profile pipe 11, so that the entire frame forms a closed mechanical overall structure, further improving the anti-deformation ability of the structure.

[0030] By adopting the above technical scheme, the inclined frame provided by the technical scheme forms a frame with an inclined structure through the height difference setting of the first square profile pipe 11 and the third square profile pipe 13, improves the overall load distribution, and facilitates the folding of the rotor folding arm 60. At the same time, the horizontal top surface design of the second square profile pipe 12 and the fourth square profile pipe 14 provides a stable and simple installation platform, and optimizes the equipment layout of the unmanned aerial vehicle. Since the angle adjusting member is reduced, the installation of other components is more stable, so that the frame can withstand complex external force conditions in plant protection operations, improves the reliability and service life of the unmanned aerial vehicle, and is especially suitable for long-time and heavy-load flight tasks.

[0031] In an embodiment of the present application, the first square profile pipe 11 and the third square profile pipe 13 are parallel to each other.

[0032] Specifically, the first square profile pipe 11 and the third square profile pipe 13 are parallel to each other. Through the parallel design of the two, the frame structure can effectively maintain the geometric stability of the structure when subjected to external force, thereby reducing the structural deformation caused by external force. This parallel arrangement ensures the bending strength of the frame in the longitudinal direction, while optimizing the weight distribution of the unmanned aerial vehicle, and is particularly suitable for large-span flight scenarios and heavy-load plant protection operations.

[0033] With the above technical scheme, the parallel design of the first square profile pipe 11 and the third square profile pipe 13 enhances the bending resistance and geometric stability of the frame structure, while optimizing the stress performance of the unmanned aerial vehicle in the longitudinal direction.

[0034] In an embodiment of the present application, the first square profile pipe 11 and / or the second square profile pipe 12 and / or the third square profile pipe 13 and / or the fourth square profile pipe 14 are provided with reinforcing ribs.

[0035] Specifically, the oblique joint frame for plant protection unmanned aerial vehicles is formed by sequentially connecting the first square profile pipe 11, the second square profile pipe 12, the third square profile pipe 13 and the fourth square profile pipe 14 end to end to form a frame structure. Each square profile pipe is made of high-strength metal material or composite material, and is provided with reinforcing ribs inside. The reinforcing ribs are made of the same or similar high-strength material as the profile pipe, and the structural strength and deformation resistance of the profile pipe are enhanced through precise internal arrangement.

[0036] With the above technical scheme, the reinforcing ribs arranged inside the first square profile pipe 11, the second square profile pipe 12, the third square profile pipe 13 and the fourth square profile pipe 14 significantly enhance the strength and deformation resistance of the profile pipe, and improve the load-carrying capacity of the frame in complex flight environments. The arrangement of the reinforcing ribs optimizes the stress dispersion path, so that the frame can maintain high stability when subjected to external force impact and vibration.

[0037] In an embodiment of the present application, the inclination angle of the first square profile pipe 11 is A, and 13°≥A≥11°.

[0038] Specifically, the oblique joint frame for plant protection unmanned aerial vehicles is formed by sequentially connecting the first square profile pipe 11, the second square profile pipe 12, the third square profile pipe 13 and the fourth square profile pipe 14 end to end to form a frame structure. Each square profile pipe is made of high-strength metal material or composite material, and can be manufactured through precision machining technology. The inclination angle of the first square profile pipe 11 relative to the horizontal plane is A, wherein the value of A is in the range of 13°≥A≥11°. Preferably, A is 12°.

[0039] The first square profile tube 11 and the third rectangular profile tube 13 are parallel to each other and are connected to other components of the frame at a specific tilt angle. The first end and second end of the first square profile tube 11 are at different horizontal heights. The first end is at the same height as the second end of the third rectangular profile tube 13, and the second end is at the same height as the first end of the third rectangular profile tube 13. The setting of the tilt angle A directly affects the mechanical properties and load distribution path of the frame. Within the range of 13° ≥ A ≥ 11°, the frame can balance structural strength, torsional resistance, and assembly adaptability to ensure optimal stability under complex working conditions.

[0040] This technical solution can conveniently minimize the folding space of the rotor folding arm 60 by setting the inclination angle A (13°≥A≥11°) of the first square profile tube 11, thereby reducing its space occupation.

[0041] In one embodiment of the present application, mounting seats 20 for mounting the rotor folding arms 60 are provided at the bends of the frame structure.

[0042] Specifically, mounting seats 20 are provided at the bends between the first square profile tube 11 and the second square profile tube 12 , and between the third square profile tube 13 and the fourth square profile tube 14 . The mounting seats 20 are used to fix the folding arms of the rotor.

[0043] Mounting bracket 20 is constructed from a high-strength material that matches the frame's construction, ensuring lightweight while providing sufficient strength to withstand the dynamic loads of the drone's rotor arm during operation. The base of mounting bracket 20 is securely connected to the frame's bend via bolts or integrated welding. Its top features a multifunctional mounting interface to accommodate various sizes of folding rotor arms 60. The positioning of mounting bracket 20 ensures the arm maintains balance when deployed or folded, aligning with the frame's center of gravity to enhance the drone's overall stability.

[0044] This technical solution further enhances the functionality and adaptability of the agricultural drone by providing mounting brackets 20 for the folding rotor arms 60 at the bends of the frame structure. The design of these brackets, combined with the frame's tilt angle and structural layout, not only improves arm installation efficiency but also effectively enhances the drone's stability and impact resistance during rotor deployment and folding. Combined with the frame's tilt angle design (13° ≥ A ≥ 11°) and internal reinforcement, the frame provides high strength and stability even in complex operating conditions, while achieving the structural advantages of lightweight and low cost.

[0045] In one embodiment of the present application, a foot frame 30 is provided at the bottom of the frame structure for supporting the frame structure so as to maintain the frame structure at a predetermined height.

[0046] Specifically, to ensure the stability of the frame when it is parked on the ground and the adaptability during the preparation of the operation, a foot stand 30 is arranged at the bottom of the frame structure. The foot stand 30 is installed at the bottom of the frame structure and is mainly used to support the frame structure and maintain its predetermined height. The foot stand 30 is made of high-strength lightweight materials (such as aluminum alloy or composite materials) and has durability and portability. The foot stand 30 is directly welded or fixed by bolt connection with the bottom of the frame to provide stable support.

[0047] The technical solution of the present application realizes stable support of the frame structure by arranging the foot stand 30 at the bottom of the frame structure, so that the frame can maintain a predetermined height during ground operation and parking.

[0048] In an embodiment of the present application, the first square profile pipe 11 is provided with two first arm pipe clamps 40, and the first arm pipe clamps 40 are clamped and connected to the rotor folding arms 60 at both ends of the first square profile pipe 11. The third square profile pipe 13 is provided with two second arm pipe clamps, and the second arm pipe clamps are clamped and connected to the rotor folding arms 60 at both ends of the third square profile pipe 13.

[0049] Specifically, the first square profile pipe 11 is provided with two first arm pipe clamps 40. The two first arm pipe clamps 40 are respectively fixed on the side walls near the two ends of the first square profile pipe 11 and are connected to the rotor folding arms 60 by bolt connection or buckle clamping, to ensure the stability of the arms in the folded state.

[0050] The third square profile pipe 13 is provided with two second arm pipe clamps, and the two second arm pipe clamps are respectively fixed on the side walls near the two ends of the third square profile pipe 13. The structure and function of the second arm pipe clamps are the same as those of the first arm pipe clamps 40.

[0051] By arranging the first arm pipe clamps 40 and the second arm pipe clamps on the first square profile pipe 11 and the third square profile pipe 13 respectively to clamp and connect the rotor folding arms 60, the rotor folding arms 60 can be conveniently fixed and released, and the structure is simple and easy to implement.

[0052] In an embodiment of the present application, a weighing pad is arranged on the first square profile pipe 11 and / or the third square profile pipe 13 to detect the weight.

[0053] Specifically, the weighing pad is installed on the top surface or the inner side wall of the first square profile pipe 11 and / or the third square profile pipe 13, and the weighing pad is designed in an integrated manner with a high-precision sensor and a structural member. The weighing pad is fixed on the surface of the profile pipe by bolt or embedded installation, to ensure that it can work stably during flight and operation. The sensor part of the weighing pad is composed of a high-precision strain gauge, a signal processing module and a data output interface, which can monitor the current load state of the unmanned aerial vehicle in real time by sensing the load change in the vertical direction.

[0054] The weighing pad's sensors communicate with the drone's flight control system, transmitting real-time load data to the control system via wireless or wired means. Based on this load data, the drone can dynamically adjust flight parameters such as hover stability, altitude, and speed to optimize operational efficiency and safety.

[0055] The above technical solution, by installing weighing blocks on the first square profile tube 11 and / or the third rectangular profile tube 13, enables real-time monitoring of the load weight, providing data support for dynamic adjustment of the drone's flight parameters. The installation of weighing blocks not only improves the drone's operational accuracy but also optimizes resource utilization and operational safety.

[0056] The present application also discloses a drone, comprising any of the above-mentioned miter-jointed frames for a plant protection drone.

[0057] In one embodiment of the present application, a flight control module 70 connected to the second square profile tube 12 for controlling the flight of the UAV is also included.

[0058] The above description is only a preferred embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made by using the contents of the present invention specification and drawings under the utility model concept, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A miter frame for a plant protection drone, characterized in that: include: A first square profile tube, a second square profile tube, a third square profile tube, and a fourth square profile tube are connected end to end in sequence to form a frame structure, wherein the first end and the second end of the first square profile tube are at different horizontal heights, the first end of the first square profile tube and the second end of the third square profile tube are at the same height, and the second end of the first square profile tube and the first end of the third square profile tube are at the same height; wherein the top surfaces of the second square profile tube and the fourth square profile tube are both horizontally arranged.

2. The miter frame for a plant protection drone according to claim 1, wherein: The first square profile tube and the third square profile tube are parallel to each other.

3. The miter frame for a plant protection drone according to claim 1, wherein: Reinforcement ribs are provided in the first square profile tube and / or the second square profile tube and / or the third square profile tube and / or the fourth square profile tube.

4. The miter frame for a plant protection drone according to claim 1, wherein: The inclination angle of the first square profile tube is A, 13°≥A≥11°.

5. The miter frame for a plant protection drone according to claim 1, wherein: The bending parts of the frame structure are all provided with mounting seats for mounting the rotor folding arms.

6. The miter frame for a plant protection drone according to claim 1, wherein: A foot frame is provided at the bottom of the frame structure for supporting the frame structure so as to keep the frame structure at a predetermined height.

7. The miter frame for a plant protection drone according to claim 5, wherein: The first square profile tube is provided with two first arm tube clamps, which clamp the rotor folding arms connected to both ends of the first square profile tube; the third rectangular profile tube is provided with two second arm tube clamps, which clamp the rotor folding arms connected to both ends of the third rectangular profile tube.

8. The miter frame for a plant protection drone according to claim 1, wherein: The first square profile tube and / or the third square profile tube are provided with weighing pads for detecting weight.

9. A drone, characterized in that: It comprises a miter frame for a plant protection drone as described in any one of claims 1 to 8.

10. The drone according to claim 9, wherein: It also includes a flight control module connected to the second square profile tube for controlling the flight of the UAV.

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