A fuselage-protective cover integrated quad-rotor unmanned aerial vehicle
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CIVIL AVIATION FLIGHT UNIV OF CHINA
- Filing Date
- 2025-07-08
- Publication Date
- 2026-07-10
Smart Images

Figure CN224477090U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of unmanned aerial vehicle (UAV) technology, specifically to a quadcopter UAV with an integrated fuselage and protective cover. Background Technology
[0002] With the continuous advancement of technology, drone technology is playing an increasingly important role in many fields. However, current quadcopter drones face numerous problems in practical applications that urgently need to be addressed. The existing rotor blade protective shield design has significant shortcomings, failing to provide comprehensive protection for the rotor blades. In complex flight environments, obstacles such as tree branches and power lines can easily impact the rotor blades from different angles, and existing protective shields often have blind spots. Once the rotor blades are damaged, it not only affects the drone's flight performance but may even lead to serious crashes. Moreover, once the rotor blade protective shield itself is damaged, it often requires complete disassembly and replacement, a cumbersome process that greatly increases maintenance costs and time, severely impacting the normal operating efficiency of the drone.
[0003] In terms of fuselage structure design, existing drones generally suffer from insufficiently tight connections between the arms and fuselage, resulting in poor overall integrity. This structure is prone to loosening and deformation when subjected to external impacts, thus affecting the drone's flight stability. Furthermore, traditional drone fuselage protective covers are mostly independently installed, lacking effective integration with the arms and fuselage to form a robust whole. This makes them vulnerable to strong impacts and fails to provide adequate protection for critical components such as internal electronic parts and batteries, limiting their application in harsh environments.
[0004] Furthermore, most existing drones do not employ carbon fiber cutting technology to optimize their fuselage structure, resulting in a relatively heavy weight. This not only places higher demands on the drone's power system, increasing energy consumption and shortening flight time, but also makes the drone less convenient to transport and carry. In practice, heavier drones require greater effort to move, increasing workload and time costs for users who frequently need to perform tasks in different locations.
[0005] Furthermore, the design of existing drones presents numerous inconveniences in terms of disassembly and maintenance. Their complex internal structure and numerous components make repair and maintenance extremely difficult, requiring professional technicians to spend a significant amount of time and effort on troubleshooting and repair. Once a component malfunctions, the disassembly and replacement process is often very cumbersome, and may even require large-scale disassembly of the entire drone. This undoubtedly greatly reduces the efficiency of drone use and increases the user's operating costs.
[0006] In the existing technology, the drone rotor protection device in patent 201810076117.6 has drawbacks such as high cost, low installation efficiency, and time-consuming maintenance. Its high cost mainly stems from the inclusion of multiple protective covers and cross-shaped connecting brackets, resulting in a large number of parts, complex manufacturing processes, increased raw material and processing costs, cumbersome assembly procedures, and consequently, higher labor costs. Low installation efficiency arises because multiple protective covers need to be connected to the corners of the drone individually, each with retaining rings and connecting edges, making the installation process cumbersome and time-consuming. Time-consuming maintenance is attributed to its complex structure and numerous parts, requiring individual inspection of each component; any damage or loosening necessitates time-consuming repair and replacement. The main reason for these drawbacks is that the protection device of this invention uses multiple independent protective covers and a complex connection structure, resulting in a complex design that fails to meet the application requirements of high efficiency, economy, and ease of maintenance.
[0007] While the drone protection device disclosed in patent 202121214462.5 provides a certain degree of rotor and fuselage protection, it suffers from the following main drawbacks: First, the device comprises numerous components, such as rotor protection frames, balance support frames, columnar outriggers, and anti-fall mechanisms, resulting in high overall manufacturing costs. Second, the complex structural design makes installation cumbersome and inefficient, requiring more time and specialized skills for assembly. Finally, maintenance is difficult; the interrelationships between components increase the difficulty of troubleshooting and repair during maintenance, reducing efficiency. These drawbacks primarily stem from its design complexity, impacting the device's economic viability and practicality.
[0008] In summary, existing quadcopter drone technology has significant shortcomings in terms of blade protection, fuselage structural strength, overall integrity, lightweight design, ease of disassembly, ease of maintenance, and ease of transportation. These shortcomings make it difficult to meet the increasingly complex and diverse application scenarios. There is an urgent need for a completely new design to overcome these deficiencies and improve the performance and practicality of drones. Utility Model Content
[0009] The purpose of this invention is to overcome the shortcomings of existing technologies and provide a quadcopter drone with an integrated fuselage and protective cover. Through the innovative integrated design of the fuselage and protective cover, the structure of the drone is simplified, production costs are reduced, and installation and maintenance efficiency is improved. At the same time, the drone's anti-collision capability and adaptability in complex environments are enhanced, thereby providing users with some high-performance, low-cost, and easy-to-maintain quadcopter drone solutions and promoting the widespread application of drone technology in more fields.
[0010] The purpose of this utility model is achieved through the following technical solution: a quadcopter drone with an integrated fuselage and protective cover, including a drone fuselage, an upper protective cover, and landing gear; the upper protective cover, drone fuselage, and landing gear are arranged from top to bottom, the drone fuselage is fixed to the lower part of the upper protective cover by studs; the landing gear is fixed to the lower part of the drone fuselage by landing gear connecting seats.
[0011] Preferably, the drone fuselage is formed by integrating the arms and the base plate into one piece, including a power system and a fuselage structure; the power system consists of four identical power structures on the same plane, each power structure including a propeller and a brushless motor.
[0012] Preferably, the output shaft of the brushless motor faces upward, and the blade is fixedly connected to the output shaft of the brushless motor and rotates under the drive of the brushless motor; the brushless motor is fixedly mounted above the mounting hole on the base plate via a motor mounting bracket.
[0013] Preferably, the fuselage structure includes a base plate, a collision protection arm, an upper collision protection ring, a flight controller, a flight controller board, a drone battery compartment, and a landing gear connector; the inner end of the base plate is fixedly connected to the mounting holes evenly distributed around the battery compartment, the flight controller board is mounted above the battery compartment, the flight controller is fixedly mounted above the flight controller board, and the three are fixedly connected by studs.
[0014] Preferably, the tripod connector is fixedly connected to the mounting hole below the base plate, and the tripod is symmetrically connected to both sides of the tripod connector to support the drone for parking on the ground.
[0015] Preferably, the upper protective cover includes an upper plate, a stabilizing beam, an upper anti-collision ring connector, and an upper anti-collision ring; the stabilizing beam includes two types of stabilizing beams of different lengths, namely a long stabilizing beam and a short stabilizing beam; the four upper anti-collision rings are located on the same horizontal plane and are respectively fixed to the upper plate through the long stabilizing beams, and are also fixedly connected to the upper anti-collision ring connectors; the short stabilizing beams are fixed below the upper plate and connected to the upper anti-collision ring connectors to support the upper anti-collision rings.
[0016] Preferably, the fuselage structure further includes a collision protection ring; the collision protection ring is coaxial with the upper collision protection ring and is fixedly connected to the collision protection ring arm through a mounting hole; two adjacent collision protection rings are fixedly connected to the base plate and the collision protection ring arm respectively, thereby achieving all-round protection for the propeller blades.
[0017] The beneficial effects of this utility model are:
[0018] 1) This utility model provides an integrated drone with a fuselage and protective cover. The protective cover provides all-around protection for the drone, effectively resisting collisions and accidental impacts during flight, and enhancing the drone's durability and reliability. Secondly, the overall structural design is lightweight, especially due to the use of carbon plate cutting technology, which significantly reduces the drone's weight. The weight reduction effect is remarkable, approximately 20%-30% lighter than drones made of traditional materials. This not only improves flight performance and extends flight time but also reduces the requirements for the power system.
[0019] 2) The easily detachable design of the protective cover of this utility model makes maintenance and repair extremely convenient, requiring no complex tools and allowing for quick completion, thus reducing maintenance costs and time. The overall detachable nature of the drone greatly facilitates transportation and storage, making it particularly suitable for scenarios requiring frequent relocation. In terms of cost, this design effectively controls production costs through optimized materials and structure, reducing manufacturing costs by approximately 15%-20%, making it more competitive in the market.
[0020] 3) This utility model has significant advantages in terms of technology, economy and society. It not only improves the performance and practicality of UAVs, but also reduces the cost of use. It is expected to promote the widespread application of UAV technology and the development of the industry, and create more value for society. Attached Figure Description
[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0022] Figure 2 This is a schematic diagram of the assembly relationship of this utility model;
[0023] Figure 3 This is an exploded analysis diagram of the fuselage structure of the UAV of this utility model;
[0024] Figure 4 This is a schematic diagram of the upper protective cover structure of this utility model;
[0025] Figure 5 This is a partially enlarged schematic diagram of the flight control part of this utility model;
[0026] In the diagram, 1-upper protective cover, 2-drone fuselage, 3-footrest, 4-base plate, 5-anti-collision ring arm, 6-anti-collision ring, 7-brushless motor, 8-propeller blade, 9-footrest connector, 10-battery compartment, 11-flight controller, 12-flight controller board, 13-upper plate, 14-stabilizing beam, 15-upper anti-collision ring connector, 16-upper anti-collision ring. Detailed Implementation
[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. It should be understood that the following drawings only show some embodiments of the present utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.
[0028] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments of the present invention can be combined with each other. It should also be noted that similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.
[0029] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0030] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0031] A type of quadcopter drone with its fuselage and protective shield integrated into one unit, such as Figure 1 and Figure 2As shown, it includes a drone body 1, an upper protective cover 2, and a tripod 3; the upper protective cover 2, the drone body 1, and the tripod 3 are arranged from top to bottom, the drone body 1 is fixed to the lower part of the upper protective cover 2 by studs; the tripod 3 is fixed to the lower part of the drone body 1 by a tripod connector 9.
[0032] like Figure 5 As shown, the drone fuselage 1 is formed by the fusion of the arm and the base plate 4, and includes a power system and a fuselage structure; the power system consists of four identical power structures on the same plane, each power structure including a propeller 8 and a brushless motor 7.
[0033] The inner end of the arm is fixedly connected to the mounting holes evenly distributed around the battery compartment 10, and the inner end of the base plate 4 is also fixed to the inner end of the mounting holes around the battery compartment 10. Meanwhile, the drone fuselage 1 utilizes carbon plate cutting technology, combined with a lightweight structural design, significantly reducing the weight of the fuselage structure. This integrated design not only enhances the overall fuselage's rigidity and stability but also provides a solid foundation for the installation of other components.
[0034] like Figure 5 As shown, the output shaft of the brushless motor 7 faces upward, and the blade 8 is fixedly connected to the output shaft of the brushless motor 7 and rotates under the drive of the brushless motor; the brushless motor 7 is fixedly mounted above the mounting hole of the base plate 4 via a motor mounting bracket. The motor mounting bracket and the base plate 4 are connected by welding to ensure the firmness and reliability of the connection.
[0035] like Figure 3 As shown, the fuselage structure includes a base plate 4, a collision protection arm 5, an upper collision protection ring 16, a flight controller 11, a flight controller board 12, a drone battery compartment 10, and a landing gear connector 9. The inner end of the base plate 4 is fixedly connected to mounting holes evenly distributed around the battery compartment 10. The flight controller board 12 is mounted above the battery compartment 10, and the flight controller 11 is fixedly mounted above the flight controller board 12. The three are connected by studs. This constitutes the drone's flight control system, used to control the drone's flight attitude, heading, etc. Based on a quadcopter drone, two pairs of brushless motors 7 drive the propellers to rotate in different directions, providing lift while counteracting the anti-torque from the propellers, resulting in stable and reliable flight.
[0036] Furthermore, the tripod connector 9 is fixedly connected to the mounting hole below the base plate 4, and the tripod 3 is symmetrically connected to both sides of the tripod connector 9 to support the drone on the ground and to provide a buffering effect during take-off and landing.
[0037] like Figure 4As shown, the upper protective cover 2 includes an upper plate 13, a stabilizing beam 14, an upper anti-collision ring connector 15, and an upper anti-collision ring 16. The stabilizing beam 14 includes two types of stabilizing beams with different lengths, namely a long stabilizing beam and a short stabilizing beam. The four upper anti-collision rings are located on the same horizontal plane and are fixed to the upper plate 13 by the long stabilizing beams, and are also fixedly connected to the upper anti-collision ring connector 15. The short stabilizing beam 14 is fixed below the upper plate 13 and connected to the upper anti-collision ring connector 15 to support the upper anti-collision ring 16.
[0038] Furthermore, the fuselage structure also includes a crash ring 6; the crash ring 6 is coaxial with the upper crash ring 16 and is fixedly connected to the crash ring arm (5) through a mounting hole; the two adjacent crash rings 6 are welded and fixedly connected to the base plate 4 and the crash ring arm 5 respectively, thereby achieving all-round protection for the propeller blade 8.
[0039] Both the upper protective cover 2 and the anti-collision ring 6 of this utility model adopt a modular design and are connected to the drone fuselage 1 by bolts and other connectors. This design makes the protective cover structure easy to disassemble and maintain. When it is necessary to inspect or replace internal components, the protective cover can be quickly disassembled by simply loosening the corresponding bolts with a common wrench, exposing the internal structure, which greatly saves maintenance time. At the same time, the various components of the protective cover are small in size and light in weight after disassembly, making them easy to transport individually and reducing transportation costs and difficulties.
[0040] The installation process of this utility model is as follows:
[0041] 1. Body Assembly: Assemble the arm and base plate 4 into a single unit according to design requirements, ensuring a firm and reliable connection between the arm and base plate 4. Then, install the battery compartment 10 onto the base plate 4 and securely connect the inner end of the arm to the mounting holes around the battery compartment 10.
[0042] 2. Power System Installation: Securely mount the brushless motor 7 to the end of the arm, ensuring the motor mount faces upwards. Attach the propeller blades 8 to the output shaft of the brushless motor 7. Ensure the four power structures are symmetrically arranged and the output shaft of the brushless motor 7 faces upwards to provide stable lift during flight.
[0043] 3. Protective Cover Installation: First, assemble the upper plate 13, stabilizing beam 14, upper anti-collision ring connector 15, and upper anti-collision ring 16 of the upper protective cover 2 according to the design requirements to form a complete upper protective cover 2. Then, fix the upper protective cover 2 to the top of the UAV fuselage 1 using studs. Next, fix the anti-collision ring 6 to the anti-collision ring arm 5, and connect the anti-collision ring arm 5 to the base plate 4 and the arm to achieve all-round protection for the propeller blades 8. Due to the easy-to-disassemble design of the protective cover structure, the assembly of each component can be completed quickly and conveniently during the installation process, without complicated tools and tedious procedures, thus improving installation efficiency.
[0044] 4. Flight controller installation: Install the flight controller board 12 on top of the battery compartment 10, then fix the flight controller 11 on top of the flight controller board 12, and connect the flight controller 11, flight controller board 12 and battery compartment 10 together with studs to complete the installation of the flight controller.
[0045] 5. Tripod Installation: Secure the tripod connector 9 to the mounting hole below the base plate 4, and then symmetrically connect the tripod 3 to both sides of the tripod connector 9 to ensure that the tripod 3 is securely installed and can stably support the drone.
[0046] The workflow of this utility model is as follows:
[0047] 1) Place the drone on a flat surface, ensuring the landing gear 3 provides stable support. Check the connections of all components, including the connection between the arm and the base plate 4, the connection between the brushless motor 7 and the arm, the connection between the propeller blades 8 and the brushless motor 7, the installation of the protective cover, and the connection of the flight control unit, ensuring all components are securely and reliably connected. Open the three cargo hatches and begin loading cargo;
[0048] 2) When a start command is issued via remote control or other control device, the brushless motor 7 of the drone begins to rotate, driving the propeller 8 to generate lift; when the lift is sufficient to overcome the drone's own weight, the drone gradually lifts off the ground and takes off.
[0049] 3) During flight, the flight controller 11 controls the flight attitude, heading, altitude, etc. of the UAV according to the preset flight mission and operation instructions; the flight controller 11 adjusts the speed of each brushless motor 7 to realize the UAV's ascent, descent, forward, backward, hovering and turning actions.
[0050] 4) After the flight mission is completed, Flight Controller 11 controls the drone to gradually descend and land smoothly on the ground. During the landing, landing gear 3 acts as a buffer, protecting the drone's fuselage and components from damage. After landing, the drone's power is turned off, completing the flight mission.
[0051] This invention simplifies the structure of drones, reduces production costs, and improves installation and maintenance efficiency. It also enhances the drone's collision resistance and adaptability in complex environments, thereby providing users with high-performance, low-cost, and easy-to-maintain quadcopter drone solutions and promoting the widespread application of drone technology in more fields.
[0052] The above description is merely a preferred embodiment of this utility model. It should be understood that this utility model is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the concept described herein through the above teachings or related technologies or knowledge. Modifications and variations made by those skilled in the art that do not depart from the spirit and scope of this utility model should be protected within the scope of the appended claims.
Claims
1. A quadcopter drone with an integrated fuselage and protective shield, characterized in that: It includes a drone body (1), an upper protective cover (2) and a tripod (3); the upper protective cover (2), the drone body (1) and the tripod (3) are arranged from top to bottom, the drone body (1) is fixed to the lower part of the upper protective cover (2) by studs; the tripod (3) is fixed to the lower part of the drone body (1) by a tripod connector (9).
2. The quadcopter drone with integrated fuselage and protective cover as described in claim 1, characterized in that: The UAV fuselage (1) is formed by the fusion of the arm and the base plate (4), including the power system and the fuselage structure; the power system consists of four identical power structures on the same plane, each power structure including a propeller (8) and a brushless motor (7).
3. The quadcopter drone with integrated fuselage and protective cover as described in claim 2, characterized in that: The output shaft of the brushless motor (7) faces upward, and the blade (8) is fixedly connected to the output shaft of the brushless motor (7) and rotates under the drive of the brushless motor; the brushless motor (7) is fixedly installed above the mounting hole of the base plate (4) through the motor mounting seat.
4. The quadcopter drone with integrated fuselage and protective cover as described in claim 2, characterized in that: The fuselage structure includes a base plate (4), a collision protection ring arm (5), an upper collision protection ring (16), a flight controller (11), a flight controller board (12), a drone battery compartment (10), and a landing gear connector (9). The inner end of the base plate (4) is fixedly connected to the mounting holes evenly distributed around the battery compartment (10). The flight controller board (12) is installed above the battery compartment (10), and the flight controller (11) is fixedly installed above the flight controller board (12). The three are fixedly connected by studs.
5. The quadcopter drone with integrated fuselage and protective cover as described in claim 4, characterized in that: The tripod connector (9) is fixedly connected to the mounting hole below the base plate (4), and the tripod (3) is symmetrically connected to both sides of the tripod connector (9) to support the drone to be parked on the ground.
6. The quadcopter drone with integrated fuselage and protective cover as described in claim 1, characterized in that: The upper protective cover (2) includes an upper plate (13), a stabilizing beam (14), an upper anti-collision ring connector (15), and an upper anti-collision ring (16); the stabilizing beam (14) includes two types of stabilizing beams with different lengths, namely a long stabilizing beam and a short stabilizing beam; the four upper anti-collision rings are located on the same horizontal plane and are fixed to the upper plate (13) by the long stabilizing beams, and are also fixedly connected to the upper anti-collision ring connector (15); The short stabilizing beam (14) is fixed below the upper plate (13) and connected to the upper anti-collision ring connector (15) to support the upper anti-collision ring (16).
7. The quadcopter drone with integrated fuselage and protective cover as described in claim 2, characterized in that: The fuselage structure also includes a crash ring (6); the crash ring (6) is coaxial with the upper crash ring (16) and is fixedly connected to the crash ring arm (5) through the mounting hole; the two adjacent crash rings (6) are fixedly connected to the base plate (4) and the crash ring arm (5) respectively, thereby achieving all-round protection of the blade (8).