Detachable blade protection structure of remote control unmanned aerial vehicle

Abstract

The invention relates to the technical field of unmanned aerial vehicles, in particular to a remote control unmanned aerial vehicle detachable blade protection structure which comprises an unmanned aerial vehicle body, an unmanned aerial vehicle connecting arm, a fixing base and a detachable blade protection mechanism. The unmanned aerial vehicle comprises an unmanned aerial vehicle body, unmanned aerial vehicle connecting arms are connected to the two sides of the unmanned aerial vehicle body, fixing bases are fixedly arranged at the tail ends of the unmanned aerial vehicle connecting arms, the fixing bases are used for installing fans, blade protection mechanisms are slidably installed on the fixing bases, the blade protection mechanisms are detachable parts and can be replaced according to different conditions, and the unmanned aerial vehicle is suitable for various environments, convenient to disassemble and assemble and efficient in operation.

Description

Technical Field

[0001] This invention relates to the field of unmanned aerial vehicle (UAV) technology, and more particularly to a detachable blade protection structure for a remote-controlled UAV. Background Technology

[0002] With the rapid development of remote-controlled drone technology, it has been widely used in various fields such as aerial photography, agricultural plant protection, power line inspection, indoor surveying, and field exploration. As a core component of flight, the drone blades directly affect the flight stability and safety of the drone. Due to the diverse operating environments of drones, different environments present different safety hazards, and the needs for blade protection also vary significantly: In complex outdoor terrain (such as forests and mountains), blades are easily scratched or damaged by branches and rocks; in confined indoor spaces (such as exhibition halls, corridors, and warehouses), blades are prone to collisions with walls, furniture, and other obstacles, and high flight flexibility is required; in low-altitude dense environments (such as densely populated areas and urban low-altitude areas), the rotating blades can easily cause injury to people and are easily entangled by small debris.

[0003] In existing technologies, drone blade protection structures are mostly fixed, integrated designs, meaning the protection mechanism is fixedly connected to the drone's connecting arm or mounting base and cannot be disassembled or replaced. This fixed structure has significant drawbacks: First, it has poor adaptability; a single protection structure can only cope with a single environment and cannot be flexibly adjusted for different environments such as the wild, indoors, or low-altitude dense areas. This results in poor protection in certain environments. For example, a fixed, heavy-duty protection structure increases flight drag and affects maneuverability when used indoors, while a simple protection structure cannot withstand collisions with branches and rocks in the wild. Second, it lacks versatility; different environments require different models of drones with protection structures, increasing user costs. Third, maintenance is inconvenient; when the protection structure is damaged, it needs to be completely disassembled and replaced, which is cumbersome, time-consuming, and labor-intensive.

[0004] Therefore, developing a detachable blade protection structure for remote-controlled drones with a detachable blade protection mechanism that can be flexibly replaced according to different environments, is easy to assemble and disassemble, and has strong protective capabilities has become an urgent technical problem to be solved. Summary of the Invention

[0005] The purpose of this invention is to overcome the shortcomings of existing drone blade protection structures, such as fixed and non-removable design, inability to adapt to various environments, poor protective effect, insufficient versatility, and inconvenient maintenance. This invention provides a detachable blade protection structure for remote-controlled drones. By designing a detachable blade protection mechanism, the protection structure can be flexibly replaced, adapting to various usage environments such as outdoor, indoor, and low-altitude dense environments. This improves the protective effect in a targeted manner, while simplifying the disassembly and assembly process, reducing usage and maintenance costs, and enhancing the flexibility and safety of drone use.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A detachable blade protection structure for a remote-controlled drone includes a drone body, drone connecting arms, a mounting base, and a detachable blade protection mechanism. The drone body is connected to both sides of the drone connecting arms, and a mounting base is fixedly installed at the end of the drone connecting arms. The mounting base is used to install a wind turbine, and the blade protection mechanism is slidably installed on the mounting base. The blade protection mechanism is a detachable component that can be replaced according to different situations.

[0007] Furthermore, the blade protection mechanism includes a mounting base, an arc-shaped connecting rod, and a collision avoidance strip. A groove is formed on the surface of the mounting base, within which the mounting base slides. An elastic locking pin is located at the end of the mounting base. A positioning hole is formed above the groove of the mounting base, and the elastic locking pin engages with the positioning hole to achieve locking and fixation. This design enables quick assembly and disassembly of the blade protection mechanism and the mounting base. The sliding installation method facilitates alignment of the installation position, and the cooperation between the elastic locking pin and the positioning hole ensures a stable connection, preventing the protection mechanism from loosening or falling off during flight. Moreover, no special tools are required; simply pressing the elastic locking pin releases the lock, allowing for easy removal of the protection mechanism, making the operation convenient and efficient.

[0008] Furthermore, the blade protection mechanism includes three types adapted to different sites: a scratch and impact protection mechanism adapted to complex outdoor terrain, a lightweight protection mechanism adapted to small indoor spaces, and a fully enclosed safety protection mechanism adapted to low-altitude dense environments. The corresponding protection mechanism can be flexibly selected according to the actual use environment to achieve targeted protection and solve the problem of poor adaptability of existing fixed protection structures.

[0009] Furthermore, the anti-scratch and anti-collision protection mechanism features a circular anti-collision strip made of carbon fiber. Carbon fiber is characterized by high strength, light weight, wear resistance, and corrosion resistance, effectively resisting scratches and collisions from obstacles such as branches and rocks in complex outdoor terrain, thus preventing blade damage. The frame surface is coated with a wear-resistant and scratch-resistant coating, further enhancing protective performance and extending the service life of the protection mechanism. The frame wraps around the outside of the drone blades in a ring shape, providing all-around protection. An elastic buffer pad made of rubber is located on the inner side of the frame. When the blades collide with obstacles, the elastic buffer pad absorbs the impact force, providing a cushioning effect and preventing damage to the blades due to rigid collisions. This design is suitable for complex outdoor terrains such as forests, mountains, and deserts.

[0010] Furthermore, the anti-collision strip of the lightweight protective mechanism is an arc-shaped protective strip made of lightweight engineering plastic. Its light weight minimizes the impact on the drone's flight load and ensures the drone's flight flexibility in confined indoor spaces. The arc-shaped protective strip is symmetrically arranged on both sides of the blade to specifically protect the blade edges and prevent collisions with obstacles such as walls and furniture. The protective strip is 1-2mm thick and weighs no more than 5g, further reducing the load. The ends of the protective strip have rounded corner transition structures to prevent the protective strip itself from causing wear on the blade and to prevent scratching surrounding objects during collisions, making it suitable for confined spaces such as indoor exhibition halls, corridors, and warehouses.

[0011] Furthermore, the anti-collision strip of the fully enclosed safety protection mechanism is a fully enclosed annular cover made of transparent PC material. The transparent material does not affect the drone's flight vision, and at the same time, it can completely cover the drone blades to prevent injury to personnel when the blades rotate, and also prevent the blades from being entangled by small debris. The annular cover has evenly distributed ventilation holes on its side wall, which can effectively reduce flight drag, ensure the flight stability of the drone, and is suitable for densely populated areas, low-altitude inspections, and other low-altitude dense environments.

[0012] Furthermore, the mounting base is made of aluminum alloy, which is high in strength and lightweight, ensuring the structural stability of the mounting base without excessively increasing the flight load of the drone. The mounting base and the drone connecting arm are fixedly connected by locking bolts, ensuring a firm connection and preventing the mounting base from loosening or falling off during flight. The inner wall of the mounting base has anti-slip textures, which can increase the friction between the mounting base and the drone connecting arm, further improving the connection stability and preventing the mounting base from shifting due to vibration, thus ensuring the stable installation of the blade protection mechanism.

[0013] Furthermore, the mounting base and the anti-collision strip body are integrally molded structures. This integral molding design enhances the structural strength of the blade protection mechanism, prevents the anti-collision strip from loosening or falling off the mounting base, and improves the durability of the protection mechanism. The mounting base is made of high-strength engineering plastic material, which has high strength and good toughness and can withstand the vibration and impact during the flight of the drone. The surface of the mounting base is coated with a waterproof and anti-corrosion coating, which can adapt to complex outdoor environments such as humidity, dust, and corrosiveness, extend the service life of the protection mechanism, and ensure stable use in different environments.

[0014] The beneficial effects of this invention are: 1. Adaptable to multiple environments: The core innovation of this invention lies in the detachable design of the blade protection mechanism. It can flexibly replace the corresponding protection mechanism according to different usage environments such as complex terrain in the field, small indoor spaces, and dense low-altitude environments, so as to achieve targeted protection and completely solve the problem that the existing fixed protection structure cannot adapt to multiple environments and has poor protection effect, ensuring that the blade can be effectively protected in different environments.

[0015] 2. Easy to install and disassemble, and efficient to operate: The blade protection mechanism is slidably connected to the fixed seat through the slide groove. With the locking structure of the elastic locking pin and the positioning hole, no professional tools are required. One person can complete the installation and replacement. Pressing the elastic locking pin will release the lock and slide the protection mechanism off. When installing, align it with the slide groove and slide it into place to lock automatically. The operation is simple and efficient, reducing the user's operating difficulty and maintenance costs.

[0016] 3. Stable connection, guaranteed flight safety: The mounting base and the drone connecting arm are fixed with locking bolts, and the inner wall has anti-slip texture to ensure a stable connection. The blade protection mechanism is locked with elastic locking pins and positioning holes, and with the limiting effect of the slide groove, it can prevent the protection mechanism from loosening or falling off during flight. At the same time, the one-piece molded mounting base and anti-collision strip further improve the structural stability of the protection mechanism and ensure the flight safety of the drone.

[0017] 4. Durable structure and strong versatility: Various protection mechanisms adopt special materials and structural designs adapted to the corresponding environment, taking into account both protection performance and usage requirements. At the same time, the surface of the mounting base is equipped with a waterproof and anti-corrosion coating, which can adapt to a variety of complex environments and extend service life. Different types of blade protection mechanisms can be adapted to the same fixed base, which is highly versatile and eliminates the need to equip drones separately for different environments, greatly reducing the user's operating costs.

[0018] 5. Highly practical and widely applicable: It can be adapted to remote-controlled drones in various fields such as aerial photography, agricultural plant protection, power line inspection, indoor surveying, and field exploration. It provides targeted protection for different usage environments, protecting the blades from damage while also ensuring the drone's flight flexibility. It has a wide range of application scenarios and promotional value. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall assembly of a detachable blade protection structure for a remote-controlled drone according to the present invention. Figure 2 This is a schematic cross-sectional view of the mounting base and the fixing base of the present invention. Figure 3 This is a schematic diagram of the anti-scratch and anti-collision protection mechanism of the present invention; Figure 4 This is a schematic diagram of the lightweight protective mechanism of the present invention; Figure 5 This is a schematic diagram of the structure of the all-encompassing safety protection mechanism of the present invention; In the diagram: 1-UAV body, 2-UAV connecting arm, 3-Fixed base, 4-Blade protection mechanism, 41-Mounting base, 42-Arc-shaped connecting rod, 43-Anti-collision strip, 44-Elastic locking pin, 5-Slide groove, 6-Positioning hole. Detailed Implementation

[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0021] Example 1: Scratch and Collision Protection Mechanism Adapted to Complex Outdoor Terrain A detachable blade protection structure for a remote-controlled drone includes a drone body 1, a drone connecting arm 2, a mounting base 3, and a scratch and collision protection mechanism 4 adapted to complex outdoor terrain.

[0022] The drone body 1 is symmetrically connected to two sides with drone connecting arms 2. The ends of the drone connecting arms 2 are fixed with mounting bases 3 by locking bolts. The mounting bases 3 are made of aluminum alloy and have anti-slip texture on the inner wall. The mounting bases 3 are used to install fans. The surface of the mounting bases 3 has a strip groove 5 and a circular positioning hole 6 is opened above the groove 5.

[0023] The anti-scratch and anti-collision protection mechanism 4 includes a mounting base 41, an arc-shaped connecting rod 42, and an anti-collision strip 43. The mounting base 41 and the anti-collision strip 43 are integrally formed by the arc-shaped connecting rod 42. The mounting base 41 is made of high-strength engineering plastic material and has a waterproof and anti-corrosion coating on its surface. The mounting base 41 is slidably installed in the slide groove 5. An elastic locking pin 44 is provided at the end of the mounting base 41. The elastic locking pin 44 can be inserted into the positioning hole 6 to achieve locking and fixation. Pressing the elastic locking pin 44 can release the lock.

[0024] The anti-collision strip 43 is a circular structure made of carbon fiber with a wear-resistant and scratch-resistant coating on the surface. The inner diameter of the ring is adapted to the rotation trajectory of the drone blades. The inner side of the ring is equipped with a 2mm thick rubber elastic buffer pad, which is specially adapted to complex outdoor terrains such as forests, mountains, and deserts, and can effectively resist the scratches and collisions of obstacles such as branches and stones.

[0025] The usage method of this embodiment is as follows: When the drone operates in complex terrain such as forests and mountains, align the mounting base 41 of the anti-scratch and anti-collision protection mechanism 4 with the slide groove 5 of the fixing base 3, and slide it into place along the slide groove 5. The elastic locking pin 44 will automatically engage with the positioning hole 6 under the reset action, achieving locking and fixing, and completing the installation. After the operation is completed, press the elastic locking pin 44 to disengage it from the positioning hole 6, and slide it along the slide groove 5 to remove the protection mechanism for easy storage and transportation. The anti-scratch and anti-collision protection mechanism of this embodiment can protect the blades in all directions, and the elastic buffer pad can absorb the impact force of the collision, avoiding damage to the blades due to rigid collisions. It is suitable for use in various complex terrains in the wild.

[0026] Example 2: Lightweight Protective Mechanism Adapted to Confined Indoor Spaces A detachable blade protection structure for a remote-controlled drone includes a drone body 1, a drone connecting arm 2, a mounting base 3, and a lightweight protective mechanism 4 adapted to confined indoor spaces.

[0027] The drone body 1 is symmetrically connected to two sides with drone connecting arms 2. The ends of the drone connecting arms 2 are fixed with mounting bases 3 by locking bolts. The mounting bases 3 are made of aluminum alloy and have anti-slip texture on the inner wall. The mounting bases 3 are used to install fans. The surface of the mounting bases 3 has a strip groove 5 and a circular positioning hole 6 is opened above the groove 5.

[0028] The lightweight protective mechanism 4 includes a mounting base 41, an arc-shaped connecting rod 42, and a crash bar 43. The mounting base 41 and the crash bar 43 are integrally formed by the arc-shaped connecting rod 42. The mounting base 41 is made of high-strength engineering plastic material and has a waterproof and corrosion-resistant coating on its surface. The mounting base 41 is slidably installed in the slide groove 5. An elastic locking pin 44 is provided at the end of the mounting base 41. The elastic locking pin 44 can be inserted into the positioning hole 6 to achieve locking and fixation. Pressing the elastic locking pin 44 can release the lock.

[0029] The anti-collision strip 43 is an arc-shaped protective strip made of lightweight engineering plastic material, with a thickness of 1mm and a weight of 3g. It is symmetrically arranged on both sides of the blade and has a rounded corner transition structure at the end. It is specially adapted to narrow spaces such as indoor exhibition halls, corridors, and warehouses, and can prevent the blade from colliding with obstacles such as walls and furniture without affecting the flight flexibility of the drone.

[0030] The usage method of this embodiment is as follows: When the drone operates in confined spaces such as indoor exhibition halls or corridors, align the mounting base 41 of the lightweight protective mechanism 4 with the sliding groove 5 of the fixing base 3, slide it into place, and the elastic locking pin 44 will automatically engage with the positioning hole 6 to complete the fixation; when switching scenes or storing, press the elastic locking pin 44 to remove the protective mechanism. The lightweight protective mechanism of this embodiment is lightweight and small in size, does not increase the drone's flight load, ensures the drone can fly flexibly in confined spaces, and at the same time provides effective protection to avoid blade collision damage.

[0031] Example 3: An example of a fully enclosed safety protection mechanism adapted to low-altitude, dense environments. A detachable blade protection structure for a remote-controlled drone includes a drone body 1, a drone connecting arm 2, a mounting base 3, and a fully enclosed safety protection mechanism 4 adapted to low-altitude dense environments.

[0032] The drone body 1 is symmetrically connected to two sides with drone connecting arms 2. The ends of the drone connecting arms 2 are fixed with mounting bases 3 by locking bolts. The mounting bases 3 are made of aluminum alloy and have anti-slip texture on the inner wall. The mounting bases 3 are used to install fans. The surface of the mounting bases 3 has a strip groove 5 and a circular positioning hole 6 is opened above the groove 5.

[0033] The fully enclosed safety protection mechanism 4 includes a mounting base 41, an arc-shaped connecting rod 42, and a crash bar 43. The mounting base 41 and the crash bar 43 are integrally formed by the arc-shaped connecting rod 42. The mounting base 41 is made of high-strength engineering plastic material and has a waterproof and corrosion-resistant coating on its surface. The mounting base 41 is slidably installed in the slide groove 5. An elastic locking pin 44 is provided at the end of the mounting base 41. The elastic locking pin 44 can be inserted into the positioning hole 6 to achieve locking and fixation. Pressing the elastic locking pin 44 can release the lock.

[0034] The anti-collision strip 43 is a fully enclosed annular cover made of transparent PC material, which completely covers the drone blades. The side wall of the annular cover has eight evenly distributed ventilation holes with a diameter of 3mm. It is specially adapted to densely populated areas, low-altitude inspections and other low-altitude dense environments. It can prevent personnel from being injured when the blades rotate, and at the same time prevent the blades from being entangled by small debris, thus reducing flight drag.

[0035] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A detachable blade protection structure for a remote-controlled unmanned aerial vehicle, characterized in that, The device includes a drone body 1, a drone connecting arm 2, and a mounting base 3. The drone body 1 is connected to both sides of the drone connecting arm 2, and the mounting base 3 is fixedly installed at the end of the drone connecting arm 2. The mounting base 3 is used to install the wind turbine, and the mounting base 3 is slidably installed with a blade protection mechanism 4. The blade protection mechanism 4 is a detachable part that can be replaced according to different situations.

2. The detachable blade protection structure for a remote-controlled drone according to claim 1, characterized in that, The blade protection mechanism 4 includes a mounting base 41, an arc-shaped connecting rod 42, and a collision protection strip 43. A sliding groove 5 is opened on the surface of the fixed seat 3, and the mounting base 41 is slidably installed in the sliding groove 5. An elastic locking pin 44 is provided at the end of the mounting base 41. A positioning hole 6 is opened above the sliding groove of the fixed seat 3, and the elastic locking pin 44 is inserted into the positioning hole 6 to achieve locking and fixation.

3. The detachable blade protection structure for a remote-controlled unmanned aerial vehicle according to claim 1, characterized in that, The blade protection mechanism includes three types adapted to different sites: a scratch and impact protection mechanism adapted to complex outdoor terrain, a lightweight protection mechanism adapted to small indoor spaces, and a fully enclosed safety protection mechanism adapted to low-altitude dense environments.

4. The detachable blade protection structure for a remote-controlled unmanned aerial vehicle according to claim 3, characterized in that, The anti-collision strip 43 is a circular structure made of carbon fiber. The frame surface is coated with a wear-resistant and scratch-resistant coating. The frame wraps around the outside of the drone blades in a ring shape. An elastic buffer pad is provided on the inside of the frame. The elastic buffer pad is made of rubber.

5. The detachable blade protection structure for a remote-controlled unmanned aerial vehicle according to claim 3, characterized in that, The anti-collision strip 43 is an arc-shaped protective strip made of lightweight engineering plastic. The arc-shaped protective strip is symmetrically arranged on both sides of the blade. The thickness of the protective strip is 1-2mm and the weight does not exceed 5g. The end of the protective strip has a rounded corner transition structure, which is suitable for narrow spaces such as indoor exhibition halls, corridors, and warehouses.

6. The detachable blade protection structure for a remote-controlled unmanned aerial vehicle according to claim 3, characterized in that, The anti-collision strip 43 is a fully enclosed annular cover made of transparent PC material. The annular cover completely wraps around the drone blades, and the side wall of the annular cover has evenly distributed ventilation holes to reduce flight drag.

7. The detachable blade protection structure for a remote-controlled unmanned aerial vehicle according to claim 1, characterized in that, The mounting base 3 is made of aluminum alloy and is fixedly connected to the drone connecting arm 2 by locking bolts. The inner wall of the mounting base 3 is provided with anti-slip texture.

8. The detachable blade protection structure for a remote-controlled unmanned aerial vehicle according to claim 3, characterized in that, The mounting base 41 and the anti-collision strip 43 are integrally molded structures. The mounting base 41 is made of high-strength engineering plastic material, and its surface is covered with a waterproof and anti-corrosion coating.

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