A large and medium-sized fixed-wing unmanned aerial vehicle belly rack device

By designing a detachable mounting beam and a bomb-mounting device for the fuselage pylon, the problems of inconvenient installation and poor adaptability of the UAV fuselage pylon were solved, achieving rapid installation and improved stability.

CN224409606UActive Publication Date: 2026-06-26河北通飞未来飞行器有限公司

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
河北通飞未来飞行器有限公司
Filing Date
2025-08-29
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

Existing drone belly mounts are inconvenient to install and remove, and cannot be adapted to various sizes of drones, resulting in poor usability.

Method used

A fuselage rack consisting of a mounting beam, a mounting plate, and a bomb-holding device is designed. The mounting beam is detachably connected to the fuselage, the bomb-holding device is threadedly connected to the mounting plate, and a sway stop is provided to ensure stability. The mounting plate can be adapted to drone racks of different sizes.

Benefits of technology

It enables quick installation and removal of the mounting bracket, improving applicability, enhancing ease of use and stability, and adapting to drone models of different sizes.

✦ Generated by Eureka AI based on patent content.

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Abstract

The embodiment of the utility model provides a kind of large and medium-sized fixed wing unmanned aerial vehicle belly rack device, it is related to unmanned aerial vehicle structure technical field.This large and medium-sized fixed wing unmanned aerial vehicle belly rack device includes fuselage and rack, the rack includes mounting beam, mounting plate and bomb hanging device, the mounting beam and the bomb hanging device are connected with the mounting plate, the mounting beam and the bottom of the fuselage are detachably connected, and the bomb hanging device is used to install fire extinguishing bomb.In use, mounting beam and bomb hanging device are connected with mounting plate, the mounting beam of rack and the bottom of fuselage are detachably connected, so as to realize the quick installation and disassembly of rack and fuselage, use more convenient, and bomb hanging device can install fire extinguishing bomb alone;And mounting plate can be adapted to different sizes of unmanned aerial vehicle shelf, improve applicability, and stronger practicality.
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Description

Technical Field

[0001] This utility model relates to the field of unmanned aerial vehicle (UAV) structural technology, and more specifically, to a belly mount device for large and medium-sized fixed-wing UAVs. Background Technology

[0002] With the rapid development of drone technology, unmanned transport aircraft are increasingly used in the logistics and transportation industry. The fuselage pylons of drones need to withstand various forces during the loading and flight of fire extinguishing munitions (weapons), such as gravity, inertia, and aerodynamics. Therefore, they must possess sufficient strength and rigidity to ensure they do not deform or break under heavy loads. Simultaneously, to minimize the impact on aircraft performance, the pylons also require a lightweight design, typically using high-strength aluminum alloys, titanium alloys, and other materials, employing advanced manufacturing processes such as precision casting and CNC machining to reduce weight while maintaining strength.

[0003] Existing mounting brackets are inconvenient to install and remove, and cannot be adapted to various sizes of aircraft, resulting in poor usability. Therefore, there is an urgent need for a new type of belly mounting device for large and medium-sized fixed-wing UAVs that can facilitate the installation and removal of various payloads from the UAV. Utility Model Content

[0004] This utility model provides a belly mount device for large and medium-sized fixed-wing UAVs, which can easily install and remove various loads on the fuselage, making it more convenient to use.

[0005] The embodiments of this utility model can be implemented as follows:

[0006] An embodiment of this utility model provides a belly pylon device for large and medium-sized fixed-wing unmanned aerial vehicles, which includes:

[0007] body;

[0008] The mounting bracket includes a mounting beam, a mounting plate, and a shell-mounting device. Both the mounting beam and the shell-mounting device are connected to the mounting plate. The mounting beam is detachably connected to the bottom of the fuselage. The shell-mounting device is used to mount fire extinguishing shells.

[0009] Optionally, the mounting beam has a C-shaped structure, and the mounting beam is snapped into the bottom of the fuselage.

[0010] Optionally, the opening of the mounting beam is oriented in the same direction as the machine head.

[0011] Optionally, the cross-section of the mounting beam is H-shaped.

[0012] Optionally, the mounting beam and the mounting plate are connected at the middle of their top surfaces.

[0013] Optionally, there are multiple shell-mounting devices, which are spaced apart along the length of the mounting plate, and each shell-mounting device is equipped with a fire extinguishing shell.

[0014] Optionally, the ammunition loading device and the bottom of the mounting plate are threaded together.

[0015] Optionally, the belly pylon device of the large and medium-sized fixed-wing UAV also includes an anti-sway device, which is installed on the missile loading device.

[0016] Optionally, each of the ammunition loading devices is equipped with multiple anti-sway devices.

[0017] Optionally, the mounting plate is provided with multiple weight-reduction holes.

[0018] The beneficial effects of the belly mount device for large and medium-sized fixed-wing UAVs according to this embodiment of the present invention include, for example:

[0019] This large and medium-sized fixed-wing UAV belly pylon device includes a fuselage and a pylon. The pylon includes a mounting beam, a mounting plate, and a bomb-loading device. Both the mounting beam and the bomb-loading device are connected to the mounting plate. The mounting beam is detachably connected to the bottom of the fuselage. The bomb-loading device is used to mount fire extinguishing bombs. In use, both the mounting beam and the bomb-loading device are connected to the mounting plate, and the mounting beam of the pylon is detachably connected to the bottom of the fuselage, thus enabling quick installation and removal of the pylon and the fuselage, making it more convenient to use. Furthermore, the bomb-loading device can be used to mount fire extinguishing bombs independently. The mounting plate is also adaptable to UAV racks of different sizes, improving applicability and practicality. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a first-view structural schematic diagram of the belly pylon device for large and medium-sized fixed-wing UAVs provided in this embodiment;

[0022] Figure 2 This is a second-view structural schematic diagram of the belly pylon device for large and medium-sized fixed-wing UAVs provided in this embodiment;

[0023] Figure 3 This is a third-view structural diagram of the belly mount device for a large or medium-sized fixed-wing UAV provided in this embodiment.

[0024] Icons: 10-Fuselage; 20-Mounting beam; 30-Mounting plate; 40-Missile loading device; 50-Sway stabilizer; 60-Weight reduction hole; 100-Body rack device for large and medium-sized fixed-wing UAVs. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0026] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0027] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0028] In the description of this utility model, it should be noted that if terms such as "upper," "lower," "inner," or "outer" are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product is usually placed during use, they are only 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, and therefore should not be construed as a limitation of this utility model.

[0029] Furthermore, the terms "first" and "second" are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0030] It should be noted that, where there is no conflict, the features in the embodiments of this utility model can be combined with each other.

[0031] With the rapid development of drone technology, unmanned transport aircraft are increasingly used in the logistics and transportation industry. The fuselage pylons of drones need to withstand various forces during the loading and flight of fire extinguishing munitions (weapons), such as gravity, inertia, and aerodynamics. Therefore, they must possess sufficient strength and rigidity to ensure they do not deform or break under heavy loads. Simultaneously, to minimize the impact on aircraft performance, the pylons also require a lightweight design, typically using high-strength aluminum alloys, titanium alloys, and other materials, employing advanced manufacturing processes such as precision casting and CNC machining to reduce weight while maintaining strength.

[0032] Existing mounting brackets are inconvenient to install and remove, and cannot be adapted to various sizes of aircraft, resulting in poor usability. Therefore, there is an urgent need for a new type of belly mounting device for large and medium-sized fixed-wing UAVs that can facilitate the installation and removal of various payloads from the UAV.

[0033] Please refer to Figures 1-3 This embodiment provides a belly mount device 100 for large and medium-sized fixed-wing UAVs, which can effectively improve the technical problems mentioned above, and can conveniently install and remove various loads on the fuselage 10, making it more convenient to use.

[0034] Please refer to Figures 1-3 This embodiment provides a large and medium-sized fixed-wing UAV belly mounting device 100, including a fuselage 10 and a mounting bracket. The mounting bracket includes a mounting beam 20, a mounting plate 30 and a bomb mounting device 40. The mounting beam 20 and the bomb mounting device 40 are both connected to the mounting plate 30. The mounting beam 20 is detachably connected to the bottom of the fuselage 10. The bomb mounting device 40 is used to mount fire extinguishing bombs.

[0035] Specifically, the under-fuselage pylons of existing UAVs need to withstand various forces during the loading of fire extinguishing munitions (weapons) and flight. Therefore, the pylons on UAVs must have sufficient strength and rigidity to ensure that they do not deform or break under heavy loads. Existing pylons suffer from inconvenient installation and disassembly, and are not adaptable to various sizes of UAVs, resulting in poor usability. To solve this problem, the under-fuselage pylon device 100 for large and medium-sized fixed-wing UAVs provided in this embodiment has the following features: the mounting beam 20 and the munition loading device 40 are both connected to the mounting plate 30. The mounting beam 20 of the pylon is detachably connected to the bottom of the fuselage 10, thereby enabling quick installation and disassembly of the pylon and the fuselage 10, making it more convenient to use. Furthermore, the munition loading device 40 can be used to load fire extinguishing munitions independently; and the mounting plate 30 can be adapted to different sizes of UAV racks, improving applicability and practicality.

[0036] In this embodiment, the mounting beam 20 has a C-shaped structure and is snapped into the bottom of the body 10. The mounting beam 20 includes an upper beam and a lower beam connected together, with portions of the upper and lower beams arranged parallel to each other. These parallel portions together form an installation space, within which the bottom of the body 10 can be snapped into, thereby enabling rapid installation and disassembly of the mounting beam 20 and the body 10.

[0037] Understandably, the opening of the mounting beam 20 faces the same direction as the machine head.

[0038] Furthermore, the mounting beam 20 has an H-shaped cross-section. The H-shaped cross-section of the mounting beam 20 provides stronger bending resistance and less deformation under lateral loads. It also exhibits good shear resistance, effectively withstanding shear forces. In addition, the H-shaped cross-section of the mounting beam 20 results in a lighter weight for the same load-bearing capacity, making it suitable for mounting on the fuselage 10.

[0039] Specifically, the mounting beam 20 and the mounting plate 30 are connected at the center of their top surfaces. The lower beam of the mounting beam 20 is welded to the center of the top surface of the mounting plate 30.

[0040] In this embodiment, the mounting plate 30 is a square plate structure, and the width direction of the mounting plate 30 is consistent with the flight direction of the UAV. The mounting plate 30 has multiple weight-reduction holes 60, thereby reducing its weight. The mounting plate 30 can be adapted to different sized fuselage 10 mounts, improving its applicability.

[0041] It should be noted that there are multiple ammunition mounting devices 40, which are spaced apart along the length of the mounting plate 30, and each ammunition mounting device 40 is equipped with a fire extinguishing bomb. Specifically, the ammunition mounting device 40 can carry fire extinguishing bombs, and can carry multiple fire extinguishing bombs individually or in combination.

[0042] In this embodiment, there are four ammunition loading devices 40, which are arranged at intervals along the length of the mounting plate 30. In other embodiments, the number of ammunition loading devices 40 may be increased or decreased, and no specific limitation is made here.

[0043] It should also be noted that the bottom of the ammunition loading device 40 and the mounting plate 30 are threaded together. This allows the ammunition loading device 40 to be quickly installed and removed from the mounting plate 30, making it more convenient to use.

[0044] In this embodiment, the ammunition loading device 40 has a plate-like structure.

[0045] In addition, to ensure the stability of the missile loading device 40 during flight alongside the UAV, the large and medium-sized fixed-wing UAV belly pylon device 100 provided in this embodiment also includes an anti-sway device 50. The anti-sway device 50 is installed on the missile loading device 40, and multiple anti-sway devices 50 are installed on each missile loading device 40. The anti-sway device 50 can suppress the swaying of the missile loading device 40 due to external forces during flight, prevent the missile loading device 40 from going out of control, colliding, or overturning, and improve the safety and stability of use.

[0046] Specifically, each ammunition loading device 40 is equipped with four anti-sway devices 50. The four anti-sway devices 50 are arranged in pairs on both sides of the ammunition loading device 40. In other embodiments, the number of anti-sway devices 50 can be increased or decreased according to actual use, and no specific limitation is made here.

[0047] The advantages of the large and medium-sized fixed-wing UAV belly pylon device 100 provided in this embodiment include at least the following:

[0048] Existing UAV belly pylons need to withstand various forces during the loading of fire extinguishing munitions (weapons) and flight. Therefore, the pylons on UAVs must possess sufficient strength and rigidity to ensure they do not deform or break under heavy loads. Existing pylons suffer from inconvenient installation and disassembly, and are not adaptable to various UAV sizes, resulting in poor usability. To address this issue, the large and medium-sized fixed-wing UAV belly pylon device 100 provided in this embodiment features a mounting beam 20 and a munition-loading device 40 both connected to a mounting plate 30. The mounting beam 20 is detachably connected to the bottom of the fuselage 10, enabling rapid installation and disassembly of the pylon and fuselage 10, making it more convenient to use. Furthermore, the munition-loading device 40 can independently mount fire extinguishing munitions; and the mounting plate 30 can accommodate UAV racks of different sizes, improving applicability and practicality.

[0049] In this embodiment, the mounting beam 20 has an H-shaped cross-section. The H-shaped cross-section of the mounting beam 20 provides stronger bending resistance and less deformation under lateral loads. It also exhibits good shear resistance, effectively withstanding shear forces. Furthermore, the H-shaped cross-section of the mounting beam 20 results in a lighter weight for the same load-bearing capacity, making it suitable for mounting on the fuselage 10.

[0050] In this embodiment, to ensure the stability of the missile loading device 40 during flight alongside the UAV, the large and medium-sized fixed-wing UAV belly pylon device 100 provided in this embodiment also includes an anti-sway device 50. The anti-sway device 50 is installed on the missile loading device 40, and multiple anti-sway devices 50 are installed on each missile loading device 40. The anti-sway device 50 can suppress the swaying of the missile loading device 40 due to external forces during flight, prevent the missile loading device 40 from going out of control, colliding, or overturning, and improve the safety and stability of use.

[0051] In summary, this utility model embodiment provides a belly mount device 100 for large and medium-sized fixed-wing UAVs. The belly mount device 100 includes a fuselage 10 and a mount. The mount includes a mounting beam 20, a mounting plate 30, and a bomb holder 40. Both the mounting beam 20 and the bomb holder 40 are connected to the mounting plate 30. The mounting beam 20 is detachably connected to the bottom of the fuselage 10. The bomb holder 40 is used to mount fire extinguishing bombs. In use, both the mounting beam 20 and the bomb holder 40 are connected to the mounting plate 30. The mounting beam 20 of the mount is detachably connected to the bottom of the fuselage 10, thereby enabling quick installation and removal of the mount and the fuselage 10, making it more convenient to use. Furthermore, the bomb holder 40 can independently mount fire extinguishing bombs; and the mounting plate 30 can be adapted to UAV racks of different sizes, improving applicability and practicality.

[0052] 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 belly-mounted pylon device for large and medium-sized fixed-wing unmanned aerial vehicles, characterized in that, include: Fuselage (10); The mounting bracket includes a mounting beam (20), a mounting plate (30), and a shell-mounting device (40). The mounting beam (20) and the shell-mounting device (40) are both connected to the mounting plate (30). The mounting beam (20) is detachably connected to the bottom of the fuselage (10). The shell-mounting device (40) is used to mount fire extinguishing shells.

2. The belly mount device for large and medium-sized fixed-wing UAVs according to claim 1, characterized in that, The mounting beam (20) has a C-shaped structure and is snapped into the bottom of the fuselage (10).

3. The belly mount device for large and medium-sized fixed-wing UAVs according to claim 2, characterized in that, The opening of the mounting beam (20) faces the same direction as the machine head.

4. The belly mount device for large and medium-sized fixed-wing UAVs according to claim 1, characterized in that, The cross-section of the mounting beam (20) is H-shaped.

5. The belly mount device for large and medium-sized fixed-wing UAVs according to claim 1, characterized in that, The mounting beam (20) and the mounting plate (30) are connected at the middle of their top surfaces.

6. The belly mount device for large and medium-sized fixed-wing UAVs according to claim 1, characterized in that, The number of the ammunition hanging devices (40) is multiple, and the multiple ammunition hanging devices (40) are spaced apart along the length direction of the mounting plate (30), and each ammunition hanging device (40) is equipped with a fire extinguishing ammunition.

7. The belly mount device for large and medium-sized fixed-wing UAVs according to claim 6, characterized in that, The bottom of the ammunition loading device (40) and the mounting plate (30) are threaded together.

8. The belly mount device for large and medium-sized fixed-wing UAVs according to claim 1, characterized in that, The large and medium-sized fixed-wing UAV belly pylon device (100) also includes an anti-sway device (50), which is installed on the missile loading device (40).

9. The belly mount device for large and medium-sized fixed-wing UAVs according to claim 8, characterized in that, Each of the aforementioned ammunition loading devices (40) is equipped with multiple anti-sway devices (50).

10. The belly mount device for large and medium-sized fixed-wing UAVs according to claim 1, characterized in that, The mounting plate (30) is provided with a plurality of weight-reducing holes (60).