Quick mounting structure of small and medium-sized unmanned aerial vehicle load equipment

Abstract

This utility model discloses a rapid installation structure for small and medium-sized UAV payload equipment, belonging to the field of aircraft structural design. The rapid installation structure for small and medium-sized UAV payload equipment comprises, from top to bottom, a fiber-reinforced resin-based composite material truss, a sandwich-structure fiber-reinforced resin-based skin mounting plate, and a metal slide rail assembly. This utility model adopts a composite material truss structure, which features high structural efficiency, light weight, suitability for mass production, and low cost. The slide rail structure facilitates installation, eliminating the time required for traditional screw tightening operations, while also addressing the issue of limited internal space and inconvenient operation in aircraft, significantly improving the installation speed of the payload. The structure employs a modular design approach, making it suitable for different payload equipment, avoiding the need for switching installation interfaces, reducing costs, and improving installation efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of aircraft structural design, and in particular relates to a rapid installation structure for payload equipment of small and medium-sized unmanned aerial vehicles. Background Technology

[0002] As an important branch of aircraft, small and medium-sized unmanned aerial vehicles (UAVs) have experienced rapid development in recent years. They have been widely adopted in air cargo, disaster relief, agricultural operations, and firefighting assistance. To achieve specific operational objectives, UAV platforms carry various limited-payload devices, including electro-optical pods for line-of-sight monitoring, 3D cameras for imaging, and public network base stations for communication. In situations requiring the rescue of trapped personnel, search and rescue equipment is also necessary.

[0003] With very few exceptions, most payload devices are currently ground-based, and their mechanical interface designs are inadequate for airborne requirements. Furthermore, the mechanical interfaces of different devices vary significantly. Additionally, the design of drones limits installation space and location, impacting installation. In real-world drone applications, devices need to be replaced according to different environmental requirements and require rapid assembly and disassembly, placing high demands on rapid-installation structures for drones.

[0004] Currently, there are many methods for quick-release structures in small and medium-sized drones, such as spring-loaded positioning pins, quick-release buckles used for fastening traditional bags, quick-release structures utilizing the elastic properties of engineering plastics, and quick-release structures using mechanical structures. Spring-loaded pins suffer from the drawback of spring creep failure, posing a certain reliability risk. Traditional bag quick-release buckles are prone to loosening. Engineering plastics have low structural strength and are difficult to recover after creep deformation. Mechanical mechanisms are complex and costly to manufacture. Furthermore, the above quick-release structures are designed for the structure itself; currently disclosed drone quick-release structures in patents are all designed for rotor arm structures, and quick-release structures for installing airborne equipment have not yet been proposed. Utility Model Content

[0005] To address this, this utility model proposes a rapid installation structure for small and medium-sized UAV payload equipment. It employs a composite material truss structure, which offers high structural efficiency, light weight, suitability for mass production, and low cost. The sliding rail structure facilitates installation, eliminating the time required for traditional screw tightening operations. It also addresses the issue of limited internal space and inconvenient operation in aircraft, significantly improving payload installation speed. Furthermore, the modular design makes it suitable for different payload equipment, avoiding the need for repeated switching of installation interfaces, reducing costs, and improving installation efficiency.

[0006] According to a first aspect of the present invention, a quick installation structure for a small and medium-sized unmanned aerial vehicle (UAV) payload device is provided, wherein the quick installation structure comprises, from top to bottom, a fiber-reinforced resin-based composite material truss, a sandwich structure fiber-reinforced resin-based skin mounting plate, and a metal slide rail assembly.

[0007] The fiber-reinforced resin-based composite truss includes two longitudinal trusses, two transverse trusses, and connecting corner boxes. The longitudinal trusses and transverse trusses are connected by the corner boxes. The longitudinal trusses are provided with lower connecting holes.

[0008] The sandwich structure fiber-reinforced resin-based skin mounting plate is a rectangular plate structure. Truss docking holes are provided on both sides of the rectangular plate structure, and the truss docking holes correspond to the lower connection holes of the truss. Multiple guide rail connection holes are provided in the middle of the rectangular plate structure. A first positioning pin hole is provided through the center of the rectangular plate structure.

[0009] The metal slide rail assembly includes a positioning pin and a slider part and a guide rail part in an assembled state; the lower part of the slider part is provided with multiple load connection holes, and a third positioning pin hole is provided through the center of the slider part; the lower part of the guide rail part is provided with multiple mounting plate connection holes, and the mounting plate connection holes correspond to the guide rail connection holes; a second positioning pin hole is provided through the center of the guide rail part; the positioning pin passes through the first positioning pin hole, the second positioning pin hole and the third positioning pin hole from top to bottom.

[0010] Furthermore, the longitudinal truss and the transverse truss are assembled into an integral fiber-reinforced resin matrix composite truss structure by riveting corner boxes.

[0011] Furthermore, the longitudinal truss is a square tube structure with a wall thickness of 2mm, and is made of T300 carbon fiber fabric truss; the transverse truss is a square tube structure with a wall thickness of 2mm, and is made of T300 carbon fiber fabric truss.

[0012] Furthermore, the ply structure of both the longitudinal truss and the transverse truss is [(0 / 90)10].

[0013] Furthermore, the diameter of the truss docking hole and the lower truss connecting hole are the same, both being 5mm.

[0014] Furthermore, each end of the transverse truss is provided with a truss connection hole with a diameter of 3mm; each end of the transverse truss is provided with a truss body connection hole with a diameter of 3mm.

[0015] Furthermore, the layup structure of the sandwich structure fiber-reinforced resin-based skin mounting plate is [(0 / 90)4 / C5(0 / 90)4].

[0016] Furthermore, the metal slide rail assembly is made of 7075-T7 aluminum alloy.

[0017] Furthermore, the slider part has an I-shaped structure, including an upper slider portion with a thickness of 10mm and a lower slider flange with a thickness of 2.5mm;

[0018] The slider flange has multiple load connection holes on both sides, each with a diameter of 4mm.

[0019] Furthermore, the guide rail component has an open U-shaped structure, including an upper guide rail portion with a thickness of 2.5mm; and a lower mounting plate connecting flange with a thickness of 2.5mm.

[0020] Furthermore, the first, second, and third locating pin holes have the same diameter, which is 5mm.

[0021] Furthermore, the rectangular plate structure of the sandwich structure fiber-reinforced resin-based skin mounting plate is provided with N guide rail connection holes in the middle, and the lower mounting plate connection flange is provided with N / 2 mounting plate connection holes on both sides respectively.

[0022] Furthermore, the lower mounting plate connection hole and the guide rail connection hole have the same diameter, both being 4mm.

[0023] Furthermore, the positioning pin is 30mm long and 5mm in diameter.

[0024] The beneficial effects of this utility model are:

[0025] This utility model discloses a quick-release structure for installing small and medium-sized UAV equipment. It is a quick-release structure specifically designed for the airborne equipment of small and medium-sized UAVs. It features high reliability, simple structure, and easy installation. In particular, the guide rail structure can ensure the installation accuracy of the equipment and meet the installation requirements of UAV airborne equipment. Attached image description:

[0026] Figure 1 This is a schematic diagram of a rapid installation structure for a small-to-medium-sized unmanned aerial vehicle (UAV) payload device according to this utility model. Figure 1 ;

[0027] Figure 2 This is a schematic diagram of the composite material truss in a rapid installation structure for payload equipment of small and medium-sized unmanned aerial vehicles (UAVs) according to this utility model.

[0028] Figure 3 This is a schematic diagram of the slider component in a quick-installation structure for a small-to-medium-sized UAV payload device according to this utility model;

[0029] Figure 4 This is a schematic diagram of the guide rail component in a quick installation structure for a small-to-medium-sized UAV payload device according to this utility model;

[0030] Figure 5 This is a schematic diagram of the metal slide rail assembly in a quick installation structure for a small-to-medium-sized UAV payload device according to this utility model;

[0031] The labels in the diagram are as follows: Fiber-reinforced resin-based composite truss-1, Sandwich structure fiber-reinforced resin-based skin mounting plate-2, Slide rail assembly-3, Transverse truss-4, Longitudinal truss-5, Corner box-6, Lower truss connection hole-7, Upper truss connection hole-8, Truss body connection hole-9, Slider part-10, Lower slider flange-11, Third positioning pin hole-12, Load connection hole-13, Guide rail flange-14, Guide rail part-15, Mounting plate connection hole-16, Second positioning pin hole-17, Positioning pin-18. Detailed implementation method:

[0032] To better understand the technical solution of this utility model, the embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0033] This utility model discloses a rapid installation structure for a small-to-medium-sized UAV payload device. The rapid installation structure includes a fiber-reinforced resin-based composite truss, a sandwich structure fiber-reinforced resin-based skin mounting plate, and a metal slide rail assembly. The fiber-reinforced resin-based composite truss includes a longitudinal truss, a transverse truss, and connecting corner boxes. The longitudinal and transverse trusses are assembled into an integral truss structure by riveting through the corner boxes. The longitudinal truss has a wall thickness of 2mm and is made of T300 carbon fiber fabric. The transverse truss has a wall thickness of 2mm and is also made of T300 carbon fiber fabric, with a designed layup of [(0 / 90)10]. The truss structure has a lower connecting hole with a diameter of 5mm, an upper connecting hole with a diameter of 3mm, and a connecting hole with the fuselage mounting beam with a diameter of 3mm. The foam sandwich structure mounting plate is made of T300 carbon fiber fabric with a layer of [(0 / 90)4 / C5(0 / 90)4]. The designed truss connection holes are 5mm in diameter, and the designed guide rail connection holes are 4mm in diameter. For rain protection, the foam sides are sealed with adhesive. The metal slide rail assembly is made of 7075-T7 aluminum alloy and includes slider parts, guide rail parts, and positioning pins. The slider parts are designed as I-beam structures, including a 10mm thick slider portion, a 2.5mm thick connecting flange portion, a 4mm diameter connection hole with the equipment, and a 5mm positioning pin hole. The guide rail parts are designed as open U-shapes, including a 2.5mm thick guide rail portion, a 2.5mm thick connecting flange with the mounting plate, a 4mm diameter connection hole with the mounting plate, and a 5mm positioning pin hole. The positioning pins are designed to be 30mm long and 5mm in diameter.

[0034] Example

[0035] like Figure 1 As shown, the quick-installation structure provided in this embodiment includes, from top to bottom, a fiber-reinforced resin-based composite truss 1, a sandwich structure fiber-reinforced resin-based skin mounting plate 2, and a metal slide rail assembly 3. Figure 2 As shown, the fiber-reinforced resin-based composite truss 1 includes two longitudinal trusses 5, two transverse trusses 4, and connecting corner boxes 6. The longitudinal trusses 5 and transverse trusses 4 are assembled into an integral composite truss structure 1 by riveting through the corner boxes 6.

[0036] The longitudinal truss 5 is a square tube structure with a wall thickness of 2mm, and is made of T300 carbon fiber fabric truss; the transverse truss 4 is a square tube structure with a wall thickness of 2mm, and is made of T300 carbon fiber fabric truss. The layup structure of both the longitudinal truss 5 and the transverse truss 4 is [(0 / 90)10].

[0037] The longitudinal truss 5 has a truss lower connection hole 7 with a diameter of 5mm; the transverse truss 4 has a truss upper connection hole 8 with a diameter of 3mm at each end; and the transverse truss 4 has a truss body connection hole 9 with a diameter of 3mm inside the end.

[0038] The sandwich structure fiber-reinforced resin-based skin mounting plate 2 is a rectangular plate structure, made of T300 carbon fiber fabric with a layup structure of [(0 / 90)4 / C5(0 / 90)4]. Each side of the rectangular plate structure of the sandwich structure fiber-reinforced resin-based skin mounting plate 2 has a truss docking hole, which corresponds to the lower truss connection hole 7 of the longitudinal truss 5, and has a diameter of 5mm. Four guide rail connection holes with a diameter of 4mm are located in the middle of the rectangular plate structure of the sandwich structure fiber-reinforced resin-based skin mounting plate 2. A first positioning pin hole penetrates through the center of the rectangular plate structure of the sandwich structure fiber-reinforced resin-based skin mounting plate 2. For rain protection, the foam sides are sealed with adhesive.

[0039] The metal slide rail assembly is made of 7075-T7 aluminum alloy; it includes a slider part 10, a guide rail part 15, and a positioning pin 18.

[0040] like Figure 3 As shown, the slider part 10 is designed as an I-shaped structure, including an upper slider part with a thickness of 10mm; a lower slider flange 11 with a thickness of 2.5mm; two load connection holes 13 with a diameter of 4mm are provided on both sides of the lower slider flange 11; and a third positioning pin hole 12 with a diameter of 5mm is provided through the center of the slider part 10.

[0041] like Figure 4As shown, the guide rail component 15 is designed with an open U-shaped structure, including an upper guide rail part with a thickness of 2.5mm; and a lower mounting plate connecting flange with a thickness of 2.5mm.

[0042] The lower mounting plate connecting flange has two mounting plate connecting holes 16 on both sides, with a diameter of 4mm. The guide rail part 15 has a second positioning pin hole 17 with a diameter of 5mm through the center.

[0043] The locating pin 18 is designed with a length of 30mm and a diameter of 5mm.

[0044] like Figure 5 As shown, the I-shaped slider part 10 is combined with the U-shaped guide rail part 15, and the positioning pin 18 passes through the first positioning pin hole, the second positioning pin hole 17 and the third positioning pin hole 12 from top to bottom.

[0045] The above components are assembled via connecting holes. The composite material truss is connected to the machine body structure using M3 screws; the foam sandwich mounting plate is connected to the composite material truss using M5 screws; and the metal slide rail is connected to the foam sandwich mounting plate using M4 screws. The metal slider is connected to the equipment using M4 screws (the number of metal sliders can be customized according to the load quantity and installed as a whole with the load equipment). During equipment changeover, the metal sliders are directly and quickly installed into the metal slide rails and locked in place by the slide rail's locating pins.

[0046] In summary, this utility model discloses a rapid installation structure for small and medium-sized UAV payload equipment. It adopts a composite material truss structure, which has high structural efficiency, light weight, and the truss is suitable for mass production and low cost. The sliding rail structure facilitates installation, eliminating the time required for traditional screw tightening operations. It also addresses the problem of inconvenient operation due to the small internal space of the aircraft, greatly improving the installation speed of the payload. The structure adopts a modular design concept, which is suitable for different payload equipment, avoids the need to switch between installation interfaces, reduces costs, and improves installation efficiency.

[0047] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A rapid installation structure for payload equipment of small and medium-sized unmanned aerial vehicles (UAVs), characterized in that, The rapid installation structure for the payload equipment of small and medium-sized UAVs consists of, from top to bottom, a fiber-reinforced resin-based composite material truss, a sandwich structure fiber-reinforced resin-based skin mounting plate, and a metal slide rail assembly. The fiber-reinforced resin-based composite truss includes two longitudinal trusses, two transverse trusses, and connecting corner boxes. The longitudinal trusses and transverse trusses are connected by the corner boxes. The longitudinal trusses are provided with truss lower connection holes. The sandwich structure fiber-reinforced resin-based skin mounting plate is a rectangular plate structure. Truss docking holes are provided on both sides of the rectangular plate structure, and the truss docking holes correspond to the lower connection holes of the truss. Multiple guide rail connection holes are provided in the middle of the rectangular plate structure. A first positioning pin hole is provided through the center of the rectangular plate structure. The metal slide rail assembly includes a positioning pin and a slider part and a guide rail part in a combined state; the lower part of the slider part is provided with multiple load connection holes, and a third positioning pin hole is provided through the center of the slider part; the lower part of the guide rail part is provided with multiple mounting plate connection holes, and the mounting plate connection holes correspond to the guide rail connection holes; a second positioning pin hole is provided through the center of the guide rail part; the positioning pin passes through the first positioning pin hole, the second positioning pin hole and the third positioning pin hole from top to bottom.

2. The rapid installation structure for small and medium-sized UAV payload equipment according to claim 1, characterized in that, Both the longitudinal truss and the transverse truss are square tube structures, and the ply structure of both the longitudinal truss and the transverse truss is [(0 / 90)10].

3. The rapid installation structure for small and medium-sized UAV payload equipment according to claim 1, characterized in that, The diameters of the truss docking holes and the lower truss connection holes are the same.

4. The rapid installation structure for small and medium-sized UAV payload equipment according to claim 2, characterized in that, Each end of the transverse truss is provided with a truss connection hole, and each end of the transverse truss is provided with a truss body connection hole.

5. The rapid installation structure for small and medium-sized UAV payload equipment according to claim 1, characterized in that, The layup structure of the sandwich structure fiber-reinforced resin-based skin mounting plate is [(0 / 90)4 / C5(0 / 90)4].

6. The rapid installation structure for small and medium-sized UAV payload equipment according to claim 1, characterized in that, The slider component has an I-shaped structure, including an upper slider section and a lower slider flange; The lower slider flange has multiple load connection holes on both sides.

7. The rapid installation structure for small and medium-sized UAV payload equipment according to claim 1, characterized in that, The guide rail component has an open U-shaped structure, including an upper guide rail section and a lower mounting plate connecting flange.

8. The rapid installation structure for small and medium-sized UAV payload equipment according to claim 1, characterized in that, The first, second, and third locating pin holes have the same diameter.

9. The rapid installation structure for small and medium-sized UAV payload equipment according to claim 7, characterized in that, The rectangular plate structure of the sandwich structure fiber-reinforced resin-based skin mounting plate has N guide rail connection holes in the middle, and the lower mounting plate has N / 2 mounting plate connection holes on both sides of the connecting flange.

10. The rapid installation structure for small and medium-sized UAV payload equipment according to claim 1, characterized in that, The mounting plate connection hole and the guide rail connection hole have the same diameter.

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