Integral frame structure of unmanned aerial vehicle

Abstract

The utility model relates to the technical field of unmanned aerial vehicles, and discloses an unmanned aerial vehicle overall frame structure which comprises an unmanned aerial vehicle body, and damping and buffering mechanisms are arranged on the left side and the right side of the bottom of the unmanned aerial vehicle body. When the unmanned aerial vehicle lands, impact force is firstly transmitted to a buffer plate, the buffer plate drives a sliding rod to slide in a fixing frame, meanwhile, a telescopic rod conducts angle adjustment under the action of a first hinge frame and a second hinge frame, linkage of the mechanical structure can preliminarily disperse and buffer part of the impact force, and a first guide rod slides up and down in a first L-shaped plate; the first spring is compressed between the limiting ring and the first L-shaped plate, and the impact force is further absorbed and consumed. The telescopic damping rod can effectively slow down the transmission speed of vibration by means of the damping characteristic of the telescopic damping rod, and converts vibration energy into heat energy to be consumed. Through the design of multiple damping and buffering, precise electronic elements and equipment in the unmanned aerial vehicle can be effectively protected, and the damage risk caused by vibration and impact is reduced.

Description

Technical Field

[0001] This utility model relates to the field of unmanned aerial vehicle (UAV) technology, specifically to an overall frame structure for a UAV. Background Technology

[0002] With the rapid development of drone technology, it has been widely used in many fields such as aerial photography, surveying and mapping, agricultural plant protection, logistics and distribution, and emergency rescue. However, in practical applications, there are some problems with the existing overall framework structure of drones that urgently need to be solved.

[0003] According to announcement number CN 207758982 U, an overall frame structure for a drone includes a frame body. The upper and lower parts of the H-shaped frame body are respectively provided with horizontal arms. The two sides of the H-shaped frame body are respectively installed with intermediate connecting frames. The two through tubes of the intermediate connecting frames are provided with oblique arms. The oblique arms and the horizontal arms are connected by the arm connecting frames.

[0004] The device is simple in structure, easy to manufacture, and has high strength, meeting the production needs of agricultural drones. However, the drones in this device use traditional shock absorption methods. Due to the impact of ground forces during landing, traditional shock absorption designs are often ineffective. Some simple shock absorption structures, such as those relying solely on a single spring or rubber pad for cushioning, are insufficient to cope with complex landing conditions and varying landing speeds. This leads to severe vibrations during landing, which can damage internal electronic components such as the flight control system, sensors, and batteries, affecting their normal operation and lifespan. It can also damage onboard equipment such as cameras and surveying instruments. Utility Model Content

[0005] The purpose of this invention is to provide an overall frame structure for unmanned aerial vehicles (UAVs) to solve the problems mentioned in the background section.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an overall frame structure for a drone, including a drone body, shock-absorbing and buffering mechanisms are provided on the left and right sides of the bottom of the drone body, and an installation mechanism is provided at the bottom of the drone body;

[0007] The shock absorption and buffer mechanism includes a fixed frame, which is symmetrically fixedly connected to the bottom of the UAV body. A first hinge frame is fixedly connected to the front and rear sides of the fixed frame. A telescopic rod is hinged to the first hinge frame. A second hinge frame is hinged to the other end of the telescopic rod. A movable plate is fixedly connected to the bottom of the second hinge frame. A slide rod is fixedly connected to the bottom of the movable plate. A buffer plate is fixedly connected to the bottom end of the slide rod. A first guide rod is symmetrically fixedly connected to the bottom of the buffer plate. A first L-plate is symmetrically fixedly connected to the bottom of the fixed frame. A limit ring is fixedly connected to the surface of the first guide rod near the bottom end. A first spring is sleeved between the bottom of the first L-plate and the limit ring on the surface of the first guide rod. A fixed plate is fixedly connected to the top of the first guide rod. A telescopic damping rod is fixedly connected to the top of the fixed plate.

[0008] Preferably, the bottom of the fixing frame has a hole that matches the slide rod, and the slide rod is slidably connected to the hole through the surface of the slide rod.

[0009] Preferably, the bottom of the first L-plate has a hole that matches the first guide rod, and the surface of the first guide rod passes through and slides up and down in the hole. The bottom end of the first spring is fixedly connected to the top of the limiting ring, and the top end of the first spring is fixedly connected to the bottom of the first L-plate.

[0010] Preferably, the top end of the telescopic damping rod is fixedly connected to the top of the fixed frame, and the damping characteristics of the telescopic damping rod itself absorb and dissipate energy, thereby reducing vibration and impact.

[0011] Preferably, the mounting mechanism includes a fixing plate and a camera body. The fixing plate is fixedly connected to the bottom of the drone body near the back. The back of the fixing plate is symmetrically provided with second guide rods. The rear end of the second guide rod is fixedly connected to a pull plate. The front end of the second guide rod is fixedly connected to a clamping plate. A second spring is sleeved on the surface of the second guide rod between the fixing plate and the clamping plate. The front of the clamping plate is fixedly connected to a locking block near the edge. The bottom of the drone body is fixedly connected to a second L-plate near the front.

[0012] Preferably, the front side of the fixing plate has a hole that matches the second guide rod, and the surface of the second guide rod passes through and slides back and forth in the hole. The rear end of the second spring is fixedly connected to the front side of the fixing plate, and the front end of the second spring is fixedly connected to the back side of the clamping plate.

[0013] Preferably, the second L-plate has a hole on its front side to facilitate shooting by the camera body. The clamping plate holds the camera body by the elastic force of the second spring, and the locking block limits the camera body so that the camera will not slip out between the clamping plate and the second L-plate.

[0014] Compared with the prior art, the present invention provides an overall frame structure for a drone, which has the following advantages:

[0015] 1. The overall frame structure of this UAV employs a combination of shock-absorbing components, including telescopic rods, springs, and telescopic damping rods. When the UAV lands, the impact force is first transmitted to the buffer plate, which drives the sliding rod to slide within the fixed frame. Simultaneously, the telescopic rod adjusts its angle under the action of the first and second hinge frames. This coordinated mechanical structure initially disperses and buffers some of the impact force. The first guide rod slides up and down within the first L-plate, and the first spring is compressed between the limiting ring and the first L-plate, further absorbing and dissipating the impact force. The telescopic damping rod, with its damping characteristics, effectively slows down the transmission speed of vibration and converts vibration energy into heat energy, thus significantly reducing the vibration and impact experienced by the UAV during landing. This multi-layered shock-absorbing design effectively protects the UAV's internal precision electronic components and equipment, reduces the risk of damage caused by vibration and impact, and improves the UAV's flight safety and stability.

[0016] 2. The overall frame structure of this drone features a mounting mechanism employing a clamping plate and a second spring design. Pulling the clamping plate causes the second guide rod to slide within the fixed plate, compressing the second spring and widening the gap between the clamping plate and the second L-plate, facilitating the insertion of the camera body. Releasing the clamping plate causes the second spring's elasticity to hold the camera body in place, while a locking block limits the camera's position, ensuring it doesn't slip. This installation method is simple to operate, requiring no complex tools or steps, and allows for quick installation and removal of the camera. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a three-dimensional structural schematic diagram of the present utility model;

[0019] Figure 2 This is a three-dimensional schematic diagram of the shock absorption and buffer mechanism of this utility model.

[0020] Figure 3 This is a three-dimensional schematic diagram of the limiting ring and the first spring of this utility model.

[0021] Figure 4 This is a three-dimensional schematic diagram of the structural pull plate and clamping plate of this utility model;

[0022] Figure 5This is a three-dimensional schematic diagram of the second guide rod and the second spring of this utility model.

[0023] In the diagram: 1. UAV body; 2. Shock absorption and buffer mechanism; 21. Fixing frame; 22. First hinge frame; 23. Telescopic rod; 24. Second hinge frame; 25. Moving plate; 26. Sliding rod; 27. Buffer plate; 28. First guide rod; 29. ​​First L-plate; 211. Limiting ring; 212. First spring; 213. Fixing plate; 214. Telescopic damping rod; 3. Mounting mechanism; 31. Fixing plate; 32. Second guide rod; 33. Pull plate; 34. Clamping plate; 35. Locking block; 36. Second spring; 37. Second L-plate; 38. Camera body. Detailed Implementation

[0024] 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.

[0025] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0026] This utility model provides the following technical solution:

[0027] Example 1

[0028] Please see Figure 1-3 This utility model provides a technical solution: an overall frame structure for a drone, including a drone body 1, shock-absorbing and buffering mechanisms 2 are provided on the left and right sides of the bottom of the drone body 1, and an installation mechanism 3 is provided at the bottom of the drone body 1;

[0029] The shock absorption and buffer mechanism 2 includes a fixed frame 21, which is symmetrically fixed to the bottom of the UAV body 1. A first hinge frame 22 is fixedly connected to the front and rear sides of the fixed frame 21. A telescopic rod 23 is hinged inside the first hinge frame 22. A second hinge frame 24 is hinged to the other end of the telescopic rod 23. A movable plate 25 is fixedly connected to the bottom of the second hinge frame 24. A slide rod 26 is fixedly connected to the bottom of the movable plate 25. A buffer plate 27 is fixedly connected to the bottom of the slide rod 26. A first guide rod 28 is symmetrically fixed to the bottom of the buffer plate 27. A first L-plate 29 is symmetrically fixed to the bottom of the fixed frame 21. A limit ring 211 is fixedly connected to the surface of the first guide rod 28 near the bottom. A first spring 212 is sleeved between the bottom of the first L-plate 29 and the limit ring 211. A fixed plate 213 is fixedly connected to the top of the first guide rod 28. A telescopic damping rod 214 is fixedly connected to the top of the fixed plate 213.

[0030] The bottom of the fixing bracket 21 has a hole that matches the slide rod 26, and the slide rod 26 is connected to the hole by sliding up and down through the surface of the slide rod 26.

[0031] The bottom of the first L-plate 29 has a hole that matches the first guide rod 28, and the surface of the first guide rod 28 is penetrated and slidably connected to the hole. The bottom end of the first spring 212 is fixedly connected to the top of the limiting ring 211, and the top end of the first spring 212 is fixedly connected to the bottom of the first L-plate 29.

[0032] The top end of the telescopic damping rod 214 is fixedly connected to the top of the fixed frame 21. The damping characteristics of the telescopic damping rod 214 itself absorb and dissipate energy, thereby reducing vibration and impact.

[0033] Example 2

[0034] Please see Figure 4-5 Furthermore, based on Embodiment 1, the installation mechanism 3 is obtained.

[0035] The mounting mechanism 3 includes a fixing plate 31 and a camera body 38. The fixing plate 31 is fixedly connected to the bottom of the drone body 1 near the back. The back of the fixing plate 31 is symmetrically provided with second guide rods 32. The rear end of the second guide rod 32 is fixedly connected with a pull plate 33. The front end of the second guide rod 32 is fixedly connected with a clamping plate 34. A second spring 36 is sleeved between the fixing plate 31 and the clamping plate 34 on the surface of the second guide rod 32. The front of the clamping plate 34 is fixedly connected with a locking block 35 near the edge. The bottom of the drone body 1 is fixedly connected with a second L-plate 37 near the front.

[0036] The front of the fixing plate 31 has a hole that matches the second guide rod 32, and the surface of the second guide rod 32 is penetrated and slidably connected to the hole. The rear end of the second spring 36 is fixedly connected to the front of the fixing plate 31, and the front end of the second spring 36 is fixedly connected to the back of the clamping plate 34.

[0037] The second L-plate 37 has a hole on its front side to facilitate shooting by the camera body 38. The clamping plate 34 clamps the camera body 38 by the elastic force of the second spring 36, and the locking block 35 limits the camera body 38 so that the camera will not slip out between the clamping plate 34 and the second L-plate 37.

[0038] In actual operation, when this device is used, the impact force first acts on the buffer plate 27 when the drone lands and touches the ground. The buffer plate 27 is connected to the slide rod 26, which passes through a hole at the bottom of the fixed frame 21 and can slide up and down within the hole, thereby transmitting the impact force to the moving plate 25. The moving plate 25 is connected to the second hinge frame 24. When subjected to the impact force, the second hinge frame 24 drives the telescopic rod 23 to rotate within the first hinge frame 22, changing the angle of the telescopic rod 23, thereby dispersing part of the impact force. This hinge structure allows the telescopic rod 23 to adaptively adjust according to the magnitude and direction of the impact force. The first guide rod 28 at the bottom of the buffer plate 27 passes through a hole at the bottom of the first L plate 29, and a first spring 212 is sleeved between the first L plate 29 and the limiting ring 211. Under the impact force, the first guide rod 28 moves downward, compressing the first spring 212. The first spring 212 deforms to absorb energy and buffer the impact. The fixed plate 213 at the top of the first guide rod 28 is connected to the telescopic damping rod 214, the top of which is fixed to the top of the fixed frame 21. During the entire buffering process, the telescopic damping rod 214 uses its own damping characteristics to prevent the first guide rod 28 from moving rapidly, converting vibration energy into heat energy, further reducing vibration and impact, and making the drone land more smoothly.

[0039] When installing the camera body 38, pull the pull plate 33, which is connected to the second guide rod 32. The second guide rod 32 passes through the hole on the front of the fixing plate 31 and can slide back and forth. Pulling the pull plate 33 moves the second guide rod 32 backward, compressing the second spring 36. The clamping plate 34 moves backward accordingly, increasing the distance between the clamping plate 34 and the second L-plate 37. The camera body 38 is placed between the clamping plate 34 and the second L-plate 37. When the pull plate 33 is released, the second spring 36 returns to its original deformation, generating a forward elastic force that pushes the clamping plate 34 forward, tightly clamping the camera body 38. The locking block 35 near the edge on the front of the clamping plate 34 limits the position of the camera body 38, preventing it from slipping between the clamping plate 34 and the second L-plate 37 due to vibration or other external forces during drone flight, ensuring the stability of the camera body 38 during shooting.

[0040] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. An overall frame structure for a drone, comprising the drone body (1), characterized in that: The drone body (1) is provided with shock absorption and buffer mechanisms (2) on the left and right sides of the bottom, and the drone body (1) is provided with an installation mechanism (3) at the bottom. The shock absorption and buffer mechanism (2) includes a fixed frame (21), which is symmetrically fixed to the bottom of the UAV body (1). A first hinge frame (22) is fixedly connected to the front and rear sides of the fixed frame (21). A telescopic rod (23) is hinged inside the first hinge frame (22). A second hinge frame (24) is hinged to the other end of the telescopic rod (23). A movable plate (25) is fixedly connected to the bottom of the second hinge frame (24). A sliding rod (26) is fixedly connected to the bottom of the movable plate (25). A buffer plate is fixedly connected to the bottom end of the sliding rod (26). (27) The bottom of the buffer plate (27) is symmetrically fixed with a first guide rod (28) at the front and back. The bottom of the fixing frame (21) is symmetrically fixed with a first L plate (29) at the front and back. The surface of the first guide rod (28) is fixedly connected with a limit ring (211) near the bottom. The surface of the first guide rod (28) is sleeved between the bottom of the first L plate (29) and the limit ring (211). The top of the first guide rod (28) is fixedly connected with a fixing plate (213). The top of the fixing plate (213) is fixedly connected with a telescopic damping rod (214).

2. The overall frame structure of an unmanned aerial vehicle according to claim 1, characterized in that: The bottom of the fixing frame (21) is provided with a hole that matches the slide rod (26), and the surface of the slide rod (26) is penetrated and slidably connected to the hole.

3. The overall frame structure of a drone according to claim 1, characterized in that: The bottom of the first L plate (29) is provided with a hole that matches the first guide rod (28), and the surface of the first guide rod (28) is penetrated and slidably connected to the hole. The bottom end of the first spring (212) is fixedly connected to the top of the limiting ring (211), and the top end of the first spring (212) is fixedly connected to the bottom of the first L plate (29).

4. The overall frame structure of a drone according to claim 1, characterized in that: The top end of the telescopic damping rod (214) is fixedly connected to the top of the fixed frame (21).

5. The overall frame structure of an unmanned aerial vehicle according to claim 1, characterized in that: The mounting mechanism (3) includes a fixing plate (31) and a camera body (38). The fixing plate (31) is fixedly connected to the bottom of the drone body (1) near the back. The back of the fixing plate (31) is symmetrically provided with second guide rods (32). The rear end of the second guide rod (32) is fixedly connected with a pull plate (33). The front end of the second guide rod (32) is fixedly connected with a clamping plate (34). The surface of the second guide rod (32) is sleeved between the fixing plate (31) and the clamping plate (34). The front of the clamping plate (34) is fixedly connected with a locking block (35) near the edge. The bottom of the drone body (1) is fixedly connected with a second L plate (37) near the front.

6. The overall frame structure of an unmanned aerial vehicle according to claim 5, characterized in that: The front of the fixing plate (31) is provided with a hole that matches the second guide rod (32), and the surface of the second guide rod (32) is penetrated and slidably connected to the hole. The rear end of the second spring (36) is fixedly connected to the front of the fixing plate (31), and the front end of the second spring (36) is fixedly connected to the back of the clamping plate (34).

7. The overall frame structure of an unmanned aerial vehicle according to claim 5, characterized in that: The second L plate (37) has a hole on its front side to facilitate the camera body (38) to take pictures. The clamping plate (34) clamps the camera body (38) by the elastic force of the second spring (36). The locking block (35) limits the position of the camera body (38).

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