An unmanned aerial vehicle anti-collision structure

Abstract

The utility model belongs to the unmanned plane anti -collision technical field, and disclose an unmanned plane anti -collision structure, including unmanned plane main part, the surface installation of unmanned plane main part has bottom anti -collision subassembly, bottom anti -collision subassembly includes setting up in the support of unmanned plane main part bottom and the anti -collision board and the oil pressure buffer spare for buffering of sliding connection in the inside of support, articulated seat one, articulated seat two, guide rod, drive board, the surface installation of anti -collision board has stabilizing component. The utility model has can carry out anti -collision processing to the bottom of unmanned plane, avoid unmanned plane when landing, sharp article to be easy to have direct impact with unmanned plane bottom, further cause sharp article to break through unmanned plane bottom, invade the inside of unmanned plane, influence normal use of unmanned plane, greatly improve unmanned plane bottom anti -collision effect, promote the use safety, reliability and service life of unmanned plane's advantage.

Description

Technical Field

[0001] This utility model belongs to the field of unmanned aerial vehicle (UAV) technology, specifically a UAV anti-collision structure. Background Technology

[0002] With the rapid development of drone technology, its applications in numerous fields such as aerial surveying and mapping, logistics and distribution, agricultural plant protection, and power line inspection are becoming increasingly widespread, making it an indispensable tool in modern society's production and daily life. In the actual operation of drones, collision avoidance performance is one of the key indicators to ensure their safe and stable operation, especially during takeoff and landing, when the risk of collision between drones and their surroundings is relatively high. Therefore, various drone collision avoidance structures have emerged.

[0003] Currently, existing collision avoidance designs for drones mainly focus on the sides, top, and propeller areas to prevent damage to the sides and internal core components. However, existing drone collision avoidance structures generally have a significant design flaw: inadequate or even complete protection for the bottom of the drone.

[0004] During drone descent, its bottom makes direct contact with the ground. If the landing area contains sharp objects such as stones, metal scraps, thorns, or discarded nails, the drone's bottom lacks effective impact protection. These sharp objects can easily collide directly with the drone's bottom during landing. Because the drone's bottom shell is typically designed to be thin and lightweight to reduce weight, it is vulnerable to the impact force of sharp objects. Under impact, sharp objects can easily penetrate the bottom shell and further intrude into the drone's interior. The drone's interior integrates numerous precision core components such as batteries, circuit boards, sensors, and flight control systems. Once sharp objects penetrate the interior, they not only cause physical damage to these core components, leading to drone malfunction and inability to operate normally, but also...

[0005] Therefore, a collision avoidance structure for drones is proposed to address the above problems. Utility Model Content

[0006] To address the problems mentioned in the background art, this utility model provides a drone anti-collision structure that can protect the bottom of the drone from collisions, preventing sharp objects from directly impacting the bottom of the drone during landing. This prevents sharp objects from penetrating the bottom of the drone, intruding into the drone's interior, and affecting its normal use. This significantly improves the anti-collision effect of the drone's bottom, enhancing the drone's safety, reliability, and lifespan.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a drone anti-collision structure, comprising a drone body; The surface of the drone body is equipped with a bottom anti-collision component, which includes a bracket set at the bottom of the drone body, an anti-collision plate slidably connected inside the bracket, a hydraulic buffer for cushioning, a first hinge seat, a second hinge seat, a guide rod, and a drive plate. The surface of the crash barrier is equipped with a stabilizing component, which includes four stabilizing bars installed at the four corners of the crash barrier, a stabilizing groove formed on the surface of the support, and a limiting rod for stabilization.

[0008] Preferably, two hinge seats are symmetrically mounted on the upper surface of the anti-collision plate, and two hinge seats are symmetrically slidably connected in the sliding grooves opened inside the bracket. The two ends of the drive plate are respectively hinged to the hinge seats and the hinge seats. The hydraulic buffer is mounted on the outer side of the bracket, and the telescopic end of the hydraulic buffer passes through the bracket and is connected to the hinge seats.

[0009] Preferably, the guide rod is slidably connected in a through hole opened on the surface of the second hinge seat, and both ends of the guide rod pass through the second hinge seat and are installed in a sliding groove opened inside the bracket.

[0010] Preferably, both the anti-collision plate and the bottom of the bracket are equipped with rubber buffer pads.

[0011] Preferably, the bracket is detachably connected to the bottom surface of the drone body by bolts.

[0012] Preferably, the stabilizing bar is slidably connected inside the stabilizing groove, the limiting rod is slidably connected inside a through hole opened on the surface of the stabilizing bar, and one end of the limiting rod passes through the stabilizing bar and is installed inside the stabilizing groove.

[0013] Preferably, a folded rubber cover is installed inside the stabilizing groove, with one end of the folded rubber cover connected to the stabilizing groove and the other end of the folded rubber cover connected to the stabilizing strip.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. By setting up bottom anti-collision components, the combination of brackets, anti-collision plates and hydraulic buffers forms a dual protection of physical blocking and buffering force dissipation, which can effectively resist the impact of sharp objects on the ground, avoid the bottom of the drone being penetrated and damage to internal core components such as batteries and circuit boards, and greatly improve the landing safety of the drone.

[0015] 2. By setting up stabilizing components, including four stabilizing bars, stabilizing grooves, and limiting rods, the sliding trajectory of the anti-collision plate is constrained from the four corners, preventing the anti-collision plate from tilting or shifting due to uneven impact force. This ensures that the hydraulic buffer and other buffer components are always in an effective working state, preventing buffer failure. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the main body and support structure of the UAV of this utility model; Figure 3 This is a schematic diagram of the structure of the bracket and anti-collision plate of this utility model; Figure 4 This is a schematic diagram of the cross-sectional structure of the bracket of this utility model; Figure 5 This is a schematic diagram of the structure of the hinged seat and guide rod of this utility model; Figure 6 This is a schematic diagram of the stabilizing groove and limiting rod of this utility model.

[0017] In the diagram: 1. Drone body; 2. Bottom anti-collision component; 21. Bracket; 22. Anti-collision plate; 23. Hydraulic buffer; 24. Hinge seat one; 25. Hinge seat two; 26. Guide rod; 27. Drive plate; 28. Rubber buffer pad; 3. Stabilization component; 31. Stabilizing bar; 32. Stabilizing groove; 33. Limiting rod; 34. Folding rubber cover. 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] like Figures 1 to 6 As shown, the present invention provides a drone anti-collision structure, including a drone body 1, a bottom anti-collision component 2 installed on the surface of the drone body 1, the bottom anti-collision component 2 including a bracket 21 set at the bottom of the drone body 1, an anti-collision plate 22 slidably connected inside the bracket 21, a hydraulic buffer 23 for buffering, a first hinge seat 24, a second hinge seat 25, a guide rod 26, and a drive plate 27. Two hinge seats 24 are symmetrically installed on the upper surface of the anti-collision plate 22, and two hinge seats 25 are symmetrically slidably connected in the grooves opened inside the bracket 21. The two ends of the drive plate 27 are respectively hinged to the hinge seats 24 and 25. The hydraulic buffer 23 is installed on the outer side of the bracket 21, and the telescopic end of the hydraulic buffer 23 passes through the bracket 21 and is connected to the hinge seats 25. Through the cooperation of the bracket 21, the anti-collision plate 22 and the hydraulic buffer 23, a dual protection of physical blocking and buffering is formed, which can effectively resist the impact of sharp objects on the ground, avoid the bottom of the drone being penetrated and the internal core components such as batteries and circuit boards being damaged, and greatly improve the landing safety of the drone.

[0020] The guide rod 26 is slidably connected in the through hole opened on the surface of the second hinge seat 25, and both ends of the guide rod 26 pass through the second hinge seat 25 and are installed in the slide groove opened inside the bracket 21. The guide rod 26 passes through the through hole of the second hinge seat 25 and is fixed in the slide groove of the bracket 21, forming an axial guide for the second hinge seat 25. This can prevent the second hinge seat 25 from shifting laterally or rotating when sliding horizontally, ensuring that it always presses the hydraulic buffer 23 along the preset trajectory, thus ensuring consistent buffering effect.

[0021] Rubber buffer pads 28 are installed at the bottom of both the anti-collision plate 22 and the bracket 21. On the one hand, the elasticity of the rubber can initially absorb the impact force, reducing the workload of the subsequent hydraulic buffer component 23; on the other hand, it can prevent sharp objects on the ground from directly scratching the surface of the anti-collision plate 22 and the bracket 21, reducing structural wear.

[0022] The bracket 21 is detachably connected to the bottom of the drone body 1 by bolts. If the bottom anti-collision component 2 malfunctions (such as damage to the hydraulic buffer 23 or deformation of the anti-collision plate 22), the bracket 21 can be directly disassembled for overall repair or replacement without disassembling the drone body 1, thus reducing maintenance difficulty and time costs.

[0023] The surface of the crash barrier 22 is equipped with a stabilizing component 3, which includes four stabilizing bars 31 respectively installed at the four corners of the crash barrier 22, a stabilizing groove 32 opened on the surface of the bracket 21, and a limiting bar 33 for stabilization. The stabilizer bar 31 is slidably connected inside the stabilizer groove 32, and the limiting rod 33 is slidably connected inside the through hole opened on the surface of the stabilizer bar 31. One end of the limiting rod 33 passes through the stabilizer bar 31 and is installed inside the stabilizer groove 32. The design of the four stabilizer bars 31, stabilizer groove 32 and limiting rod 33 constrains the sliding trajectory of the anti-collision plate 22 from the four corners, preventing the anti-collision plate 22 from tilting or shifting due to uneven impact force, and ensuring that the buffer components such as the hydraulic buffer 23 are always in an effective working state, avoiding buffer failure.

[0024] The inside of the stabilizing groove 32 is equipped with a folded rubber cover 34, one end of which is connected to the stabilizing groove 32 and the other end of which is connected to the stabilizing strip 31. This effectively prevents dust, dirt, debris, rainwater and other impurities from entering the inside of the stabilizing groove 32, avoiding impurities from adhering to the surface of the stabilizing strip 31 or getting stuck in the sliding gap, which would cause the stabilizing strip 31 to slide and get stuck, or wear to be aggravated, thus ensuring that it maintains a smooth working state for a long time.

[0025] Among them, the structure of the UAV body 1 and the hydraulic buffer 23 is existing technology, and its working principle is a well-known technology. The appropriate model is selected according to the actual use. The telescopic end of the hydraulic buffer 23 is squeezed, forcing the telescopic end to contract inward, breaking the balance of the internal hydraulic oil. When the piston rod of the telescopic end is compressed and contracted, it pushes the piston inside the buffer to move to one side of the oil chamber, squeezing the hydraulic oil in the oil chamber. The squeezed hydraulic oil needs to flow from the high-pressure oil chamber to the low-pressure oil chamber through the throttle hole (or one-way valve structure) opened on the piston. Since the diameter of the throttle hole is much smaller than the volume of the oil chamber, the hydraulic oil will generate strong viscous damping force during the flow process.

[0026] Working principle and process: When the main body of the drone 1 lands on the ground, the protection process is officially started when sharp objects on the ground (such as stones, metal fragments, tree thorns, etc.) or uneven ground impact the bottom of the drone. Sharp objects or impact forces on the ground first contact the rubber buffer pad 28 at the bottom of the crash barrier 22. The elastic properties of the rubber material can initially absorb part of the impact force, while preventing sharp objects from directly scratching the surface of the crash barrier 22 and reducing physical wear on the crash barrier 22. If the impact force is large, the remaining impact force will push the crash barrier 22 to slide into the bracket 21. When the crash barrier 22 slides upward, the hinge seat 1 24 symmetrically installed on its surface moves upward synchronously. Since the two ends of the drive plate 27 are hinged to the hinge seat 1 24 and the hinge seat 25 respectively, the upward force of the hinge seat 1 24 will be converted into a horizontal force pushing the hinge seat 25 through the drive plate 27. At this time, the second hinge seat 25 slides horizontally along the guide rod 26 in the groove inside the bracket 21 (the guide rod 26 passes through the through hole of the second hinge seat 25 to ensure that the sliding direction of the second hinge seat 25 is stable and avoids deviation), and simultaneously squeezes the hydraulic buffer 23 installed on the outer side of the bracket 21. The hydraulic buffer 23 uses the principle of hydraulic damping to slowly absorb the impact force generated by the sliding of the second hinge seat 25, convert the impact force into hydraulic energy and release it gradually, greatly weakening the impact force transmitted to the bracket 21 and the drone body 1, and preventing sharp objects from penetrating the bottom shell of the drone; The stabilizing strips 31 at the four corners of the anti-collision plate 22 slide synchronously with the anti-collision plate 22 along the inside of the stabilizing groove 32. The matching structure between the stabilizing groove 32 and the stabilizing strips 31 restricts the lateral displacement of the anti-collision plate 22. The limiting rod 33 passes through the through hole of the stabilizing strip 31 and is fixed in the stabilizing groove 32, further constraining the sliding trajectory of the stabilizing strip 31, ensuring that the anti-collision plate 22 slides only in the vertical direction, and avoiding buffer failure due to tilting. The folded rubber cover 34 inside the stabilizing groove 32 contracts or extends synchronously with the sliding of the stabilizing strip 31, which can block dust and debris from entering the inside of the stabilizing groove 32, prevent impurities from affecting the smooth sliding of the stabilizing strip 31, and ensure the long-term reliable operation of the stabilizing component 3. After the impact force disappears, the telescopic end of the hydraulic buffer 23 pushes the second hinge seat 25 to slide in the opposite direction along the guide rod 26 under its own restoring force, and drives the first hinge seat 24 and the anti-collision plate 22 to move downward through the drive plate 27, returning to the initial standby position. If maintenance and repair are required, the entire bottom anti-collision assembly 2 can be replaced and maintained by removing the bolts of bracket 21 to ensure the protective effect during subsequent landings.

[0027] Although 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 alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A collision avoidance structure for unmanned aerial vehicles (UAVs), comprising a UAV body (1), characterized in that: The surface of the drone body (1) is equipped with a bottom anti-collision component (2). The bottom anti-collision component (2) includes a bracket (21) set at the bottom of the drone body (1), an anti-collision plate (22) slidably connected inside the bracket (21), a hydraulic buffer (23) for buffering, a first hinge seat (24), a second hinge seat (25), a guide rod (26), and a drive plate (27). The surface of the crash barrier (22) is equipped with a stabilizing component (3), which includes four stabilizing bars (31) respectively installed at the four corners of the crash barrier (22), a stabilizing groove (32) opened on the surface of the bracket (21), and a limiting rod (33) for stabilization.

2. The anti-collision structure for unmanned aerial vehicles according to claim 1, characterized in that: Two hinge seats (24) are symmetrically installed on the upper surface of the anti-collision plate (22), and two hinge seats (25) are symmetrically slidably connected in the groove opened inside the bracket (21). The two ends of the drive plate (27) are respectively hinged to the hinge seats (24) and the hinge seats (25). The hydraulic buffer (23) is installed on the outer side of the bracket (21), and the telescopic end of the hydraulic buffer (23) passes through the bracket (21) and is connected to the hinge seats (25).

3. The anti-collision structure for unmanned aerial vehicles according to claim 1, characterized in that: The guide rod (26) is slidably connected in the through hole opened on the surface of the second hinge seat (25), and both ends of the guide rod (26) pass through the second hinge seat (25) and are installed in the sliding groove opened inside the bracket (21).

4. The anti-collision structure for unmanned aerial vehicles according to claim 1, characterized in that: Both the bottom of the anti-collision plate (22) and the bracket (21) are equipped with rubber buffer pads (28).

5. The anti-collision structure for unmanned aerial vehicles according to claim 1, characterized in that: The bracket (21) is detachably connected to the bottom surface of the UAV body (1) by bolts.

6. The anti-collision structure for unmanned aerial vehicles according to claim 1, characterized in that: The stabilizing bar (31) is slidably connected inside the stabilizing groove (32), and the limiting rod (33) is slidably connected inside the through hole opened on the surface of the stabilizing bar (31). One end of the limiting rod (33) passes through the stabilizing bar (31) and is installed inside the stabilizing groove (32).

7. The anti-collision structure for unmanned aerial vehicles according to claim 1, characterized in that: A folded rubber cover (34) is installed inside the stabilizing groove (32), and one end of the folded rubber cover (34) is connected to the stabilizing groove (32), while the other end of the folded rubber cover (34) is connected to the stabilizing strip (31).

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