Shell structure adapted to the special-shaped structure of a drone

Abstract

This utility model relates to the field of aircraft shell structures, and discloses a shell structure adapted to the irregular structure of a drone, including an upper shell and a tail fin. An assembly mechanism is provided on the upper shell, and an expansion mechanism is provided on the assembly mechanism. The assembly mechanism includes a T-slot, which is formed on the rear inner wall of the upper shell. A flight module frame is slidably connected to the right inner wall of the T-slot. An annular groove is formed on the bottom inner wall of the upper shell, and a closed annular plate is slidably connected to the bottom inner wall of the annular groove. A lower shell is fixedly connected to the bottom outer wall of the closed annular plate. A serial port is formed on the top inner wall of the upper shell. In this utility model, through the reasonable design of the assembly mechanism, convenient assembly and disassembly of various components of the drone shell are achieved. Furthermore, the sliding connection between the T-slot and the flight module frame, the cooperation between the annular groove and the closed annular plate, and the locking method using a threaded rod ensure both the stability and sealing of the shell connection.

Description

Technical Field

[0001] This utility model relates to the field of aircraft shell structure, and in particular to a shell structure adapted to the irregular structure of unmanned aerial vehicles. Background Technology

[0002] Shell design adapted to the irregular structure of UAVs is a key technology in UAV engineering for non-traditional aerodynamic layouts (such as biomimetic shapes, multi-mission integrated layouts, stealth configurations, etc.). Its core is to achieve a balance between structural protection, aerodynamic optimization, functional integration and lightweighting under complex geometric constraints.

[0003] The design of shells adapted to the irregular structures of drones is essentially a "multi-objective optimization under morphological constraints," requiring the combination of simulation analysis, material innovation, and breakthroughs in manufacturing processes to ultimately achieve synergy between "form, force, and function." Future trends will move towards "intelligent material shells" (such as shape memory alloy-driven variable shapes) and "full lifecycle digital design" (full-process simulation from modeling to mass production).

[0004] The irregularly shaped shell structure of drones has the following drawbacks: disassembling the integrated irregularly shaped shell is difficult; replacing internal components (such as motors and sensors) requires damaging the integrated shell, making it impossible to reassemble, and increasing maintenance costs by more than 50%. Therefore, a shell structure adapted to the irregularly shaped structure of drones is proposed to solve the above problems. Summary of the Invention

[0005] To overcome the above shortcomings, this utility model provides a shell structure adapted to the irregular structure of UAVs, aiming to improve the problem that the integrated irregular shell is difficult to disassemble in the prior art, and the replacement of internal components (such as motors and sensors) requires the destruction of the integrated shell.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a shell structure adapted to the irregular structure of a drone, including an upper shell and a tail fin. An assembly mechanism is provided on the upper shell, and an expansion mechanism is provided on the assembly mechanism. The assembly mechanism includes a T-slot, which is formed on the rear inner wall of the upper shell. A flight module frame is slidably connected to the right inner wall of the T-slot. An annular groove is formed on the bottom inner wall of the upper shell, and a closed annular plate is slidably connected to the bottom inner wall of the annular groove. A lower shell is fixedly connected to the bottom outer wall of the closed annular plate. A serial port is formed on the top inner wall of the upper shell, and a threaded rod is threadedly connected to the top inner wall of the upper shell.

[0007] As a further description of the above technical solution: the expansion mechanism includes an expansion frame, which is fixedly installed on the bottom outer wall of the lower housing. The front inner wall of the expansion frame has an insertion interface, and the left and right inner walls of the insertion interface are slidably connected to mounting plates. The bottom inner wall of the mounting plate has a connection hole, and the left inner wall of the expansion frame has an opening. The side inner wall of the opening is threaded with a fixing screw.

[0008] As a further description of the above technical solution: the serial port penetrates the top inner wall of the closed ring plate and extends to the bottom outer wall of the closed ring plate; the serial port penetrates the top inner wall of the lower housing; and the tail fin is fixedly connected to the rear outer wall of the upper housing.

[0009] As a further description of the above technical solution: the top outer wall of the threaded rod is provided with a groove, and the outer diameter of the closed annular plate is adapted to the inner diameter of the annular groove.

[0010] As a further description of the above technical solution: a silicone pad is fitted on the top inner wall of the threaded rod, and the silicone pad contacts the bottom inner wall of the T-slot.

[0011] As a further description of the above technical solution: the fixing screw penetrates the inner left wall of the mounting plate and extends to the outer wall of the mounting plate, and a steel sleeve is fixedly connected to the outer side wall of the fixing screw.

[0012] As a further description of the above technical solution: a camera module is threadedly fixed to the bottom inner wall of the opening, and an expansion module is threadedly connected to the bottom inner wall of the opening.

[0013] This utility model has the following beneficial effects:

[0014] 1. In this utility model, through the reasonable design of the assembly mechanism, the convenient assembly and disassembly of various components of the UAV shell are realized. The sliding connection between the T-slot and the flight module frame, the cooperation between the annular groove and the closed annular plate, and the locking method of the threaded rod not only ensure the stability and sealing of the shell connection and reduce the interference of gaps to internal components, but also facilitate the quick disassembly of various components during maintenance, thereby improving maintenance efficiency. At the same time, the dual fixing method enhances the structural reliability of the shell during flight.

[0015] 2. In this utility model, the extension frame provides a stable installation foundation for various extension devices. The sliding connection between the plug interface and the mounting plate, the locking structure of the fixing screw, and the design of the connection hole enable the extension devices to be quickly installed, disassembled, and replaced, meeting the diverse functional needs of UAVs in different mission scenarios, and without adversely affecting the aerodynamic performance of the UAVs. Attached Figure Description

[0016] Figure 1This is a schematic front view of the overall shell structure for adapting to the irregular shape of unmanned aerial vehicles proposed in this utility model.

[0017] Figure 2 This is a top view of the shell structure adapted to the irregular shape of the UAV proposed in this utility model;

[0018] Figure 3 This is a split diagram of the shell structure of the UAV adapted to irregular shapes proposed in this utility model;

[0019] Figure 4 This is a schematic diagram of the expansion mechanism of the shell structure adapted to the irregular structure of the UAV proposed in this utility model.

[0020] Legend:

[0021] 1. Upper fuselage; 102. Tail fin; 2. Assembly mechanism; 21. T-slot; 22. Flight module frame; 23. Annular groove; 24. Closed annular plate; 25. Lower fuselage; 26. Threaded rod; 27. Serial port; 28. Silicone pad; 3. Expansion mechanism; 31. Expansion frame; 32. Insertion interface; 33. Mounting plate; 34. Connection hole; 35. Opening; 36. Fixing screw. Detailed Implementation

[0022] 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.

[0023] Reference Figures 1-3 This utility model provides an embodiment of a shell structure adapted to the irregular shape of a drone, including an upper shell 1 and a tail fin 102. An assembly mechanism 2 is provided on the upper shell 1, and an extension mechanism 3 is provided on the assembly mechanism 2. The assembly mechanism 2 includes a T-slot 21, which is formed on the rear inner wall of the upper shell 1. The T-slot 21 provides sliding guidance and installation positioning for the flight module frame 22, ensuring connection stability. The flight module frame 22 is slidably connected to the right inner wall of the T-slot 21. 2 is used to carry flight-related components. The sliding connection method facilitates quick disassembly and maintenance. The bottom inner wall of the upper housing 1 is provided with an annular groove 23. The bottom inner wall of the annular groove 23 is slidably connected to a closed annular plate 24. The closed annular plate 24 and the annular groove 23 cooperate to achieve a sealed connection between the upper housing 1 and the lower housing 25, reducing gaps. The bottom outer wall of the closed annular plate 24 is fixedly connected to the lower housing 25. The top inner wall of the upper housing 1 is provided with a serial port 27. The top inner wall of the upper housing 1 is threadedly connected to a threaded rod 26.

[0024] Reference Figures 2-4 The serial port 27 penetrates the top inner wall of the closed annular plate 24 and extends to the bottom outer wall of the closed annular plate 24. The serial port 27 also penetrates the top inner wall of the lower housing 25. This through-hole configuration allows the threaded rod 26 to pass through both the upper housing 1 and the closed annular plate 24 simultaneously, enhancing the fixing effect. The tail wing 102 is fixedly connected to the rear outer wall of the upper housing 1. The top outer wall of the threaded rod 26 has a groove, which increases the grip friction and facilitates the rotation of the threaded rod 26, improving the efficiency of disassembly and assembly. The outer diameter of the closed annular plate 24 is matched with the inner diameter of the annular groove 23. A silicone pad 28 is fitted on the top inner wall of the threaded rod 26. The silicone pad 28 contacts the bottom inner wall of the T-slot 21, and the silicone pad 28 acts as a buffer and shock absorber, preventing the threaded rod 26 from directly and rigidly contacting the bottom of the T-slot 21, which could lead to wear.

[0025] Reference Figures 3-4 The expansion mechanism 3 includes an expansion frame 31, which is fixedly installed on the bottom outer wall of the lower housing 25. The expansion frame 31 provides an installation carrier for the expansion equipment and is the basic structure of the expansion mechanism 3. The front inner wall of the expansion frame 31 has an insertion interface 32, which provides insertion guidance and positioning for the mounting plate 33, facilitating quick installation of the expansion equipment. The mounting plates 33 are slidably connected to the inner walls of the left and right sides of the insertion interface 32. The bottom inner wall of the mounting plate 33 has a connection hole 34. The left inner wall of the expansion frame 31 has an opening... There is an opening 35, and a fixing screw 36 is threadedly connected to the inner side wall of the opening 35. The fixing screw 36 passes through the inner left side wall of the mounting plate 33 and extends to the outer wall of the mounting plate 33. A steel sleeve is fixedly connected to the outer side wall of the fixing screw 36. The steel sleeve enhances the threaded connection strength between the fixing screw 36 and the opening 35. A camera module is threadedly fixed to the inner bottom wall of the opening 35. An expansion module is threadedly connected to the inner bottom wall of the opening 35. The threaded connection allows the expansion module to be flexibly disassembled and replaced to meet the expansion function requirements of different tasks.

[0026] Working principle: When the drone needs maintenance, the threaded rod 26 is pulled out from the serial port 27 by rotating it. Then, the flight module frame 22 is riveted out from the T-slot 21, and the closed annular plate 24 is pulled out from the inner wall of the annular groove 23, so that the lower shell 25 is separated from the upper shell 1, allowing for convenient disassembly and assembly of the drone shell. During assembly, the double fixation by riveting and threaded rod 26, as well as the closure of the closed annular plate 24 and the annular groove 23, prevents large gaps between the shells from affecting the performance of internal components due to external interference. When the drone's irregular structure needs to be fitted with other extended appearance parts or equipment, the extended equipment is connected to the connection hole 34 by common screws. Then, the mounting plate 33 is inserted into the plug interface 32, and the fixing threaded rod 26 is inserted into the opening 35 and rotated to fix the fixing threaded rod 26 to the extension frame 31 by thread.

[0027] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A shell structure adapted to the irregular shape of a drone, including an upper shell (1) and a tail fin (102), characterized in that: An assembly mechanism (2) is provided on the upper housing (1), and an expansion mechanism (3) is provided on the assembly mechanism (2). The assembly mechanism (2) includes a T-slot (21), which is opened on the rear inner wall of the upper housing (1). A flight module frame (22) is slidably connected to the right inner wall of the T-slot (21). An annular groove (23) is opened on the bottom inner wall of the upper housing (1). A closed annular plate (24) is slidably connected to the bottom inner wall of the annular groove (23). A lower housing (25) is fixedly connected to the bottom outer wall of the closed annular plate (24). A serial port (27) is opened on the top inner wall of the upper housing (1). A threaded rod (26) is threadedly connected to the top inner wall of the upper housing (1).

2. The shell structure adapted to the irregular shape of an unmanned aerial vehicle according to claim 1, characterized in that: The expansion mechanism (3) includes an expansion frame (31), which is fixedly installed on the bottom outer wall of the lower housing (25). The front inner wall of the expansion frame (31) is provided with an insertion interface (32). The left and right inner walls of the insertion interface (32) are slidably connected with mounting plates (33). The bottom inner wall of the mounting plate (33) is provided with a connection hole (34). The left inner wall of the expansion frame (31) is provided with an opening (35). The side inner wall of the opening (35) is threaded with a fixing screw (36).

3. The shell structure adapted to the irregular structure of an unmanned aerial vehicle according to claim 1, characterized in that: The serial port (27) penetrates the top inner wall of the closed ring plate (24) and extends to the bottom outer wall of the closed ring plate (24). The serial port (27) penetrates the top inner wall of the lower housing (25). The tail fin (102) is fixedly connected to the rear outer wall of the upper housing (1).

4. The shell structure adapted to the irregular shape of an unmanned aerial vehicle according to claim 1, characterized in that: The top outer wall of the threaded rod (26) is provided with a groove, and the outer diameter of the closed annular plate (24) is matched with the inner diameter of the annular groove (23).

5. The shell structure adapted to the irregular structure of an unmanned aerial vehicle according to claim 1, characterized in that: A silicone pad (28) is fitted on the top inner wall of the threaded rod (26), and the silicone pad (28) contacts the bottom inner wall of the T-slot (21).

6. The shell structure adapted to the irregular structure of an unmanned aerial vehicle according to claim 2, characterized in that: The fixing screw (36) penetrates the inner left side wall of the mounting plate (33) and extends to the outer wall of the mounting plate (33). A steel sleeve is fixedly connected to the outer side wall of the fixing screw (36).

7. The shell structure adapted to the irregular structure of an unmanned aerial vehicle according to claim 2, characterized in that: A camera module is threadedly fixed to the bottom inner wall of the opening (35), and an expansion module is threadedly connected to the bottom inner wall of the opening (35).

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