A bamboo fiber reinforced unmanned aerial vehicle truss connector

By using bamboo fiber reinforcement in the drone truss connectors, combined with resin-based composite material reinforcing ribs, the problem of easy bending of aluminum alloy trusses was solved, resulting in lightweight, high-strength, and cost-effective drone truss connectors that improve flight stability.

CN224311998UActive Publication Date: 2026-06-02CENTRAL SOUTH UNIVERSITY OF FORESTRY AND TECHNOLOGY

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CENTRAL SOUTH UNIVERSITY OF FORESTRY AND TECHNOLOGY
Filing Date
2025-06-27
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

The existing drone trusses are made of aluminum alloy, which makes them prone to bending after a collision, causing flight instability.

Method used

The drone truss connectors are made of bamboo fiber reinforced material. By setting bamboo fiber layers in the inner cavities of the fixed frame, retractable rod, support rod, and strut, and reinforcing ribs in the inner cavities of the bamboo fiber layers, and the outer wall of the fixed frame is made of plastic, the high strength and toughness of bamboo fiber are combined with the reinforcing ribs of resin-based composite materials to improve the strength and stability of the drone truss.

Benefits of technology

It achieves lightweight, high-strength, collision-resistant, and cost-effective drone trusses, reducing the probability of wings bending due to collisions when not in use and improving flight stability.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to unmanned plane truss connecting piece technical field, specifically is a kind of bamboo fiber reinforced unmanned plane truss connecting piece, including fuselage, the bottom fixed connection of fuselage has truss support mechanism, truss support mechanism both sides are rotatably connected with contraction rod;The utility model is in fixed frame, contraction rod, support rod and support rod inner cavity setting bamboo fiber layer, and setting reinforcing rib in bamboo fiber layer inner cavity, bamboo fiber is made into bamboo filament by the bamboo that is made into bamboo filament bundle by mechanical rolling and disentangling, reinforcing rib is made of resin-based composite material, fixed frame outer wall is made of plastic, bamboo fiber has the characteristics of high strength, light weight and high toughness, and has better advantage in environmental protection, light weight, toughness, economy, further unmanned plane truss has the advantages of light weight, high strength, anti-collision and high performance-price ratio, solve the problem that existing unmanned plane truss is made of aluminium alloy material and is prone to bending after collision, causing unstable flight of unmanned plane.
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Description

Technical Field

[0001] This utility model relates to the technical field of drone truss connectors, specifically a bamboo fiber reinforced drone truss connector. Background Technology

[0002] A drone truss is a structure used to support and secure drone equipment, typically composed of members connected by welding, riveting, or bolting. Truss structures are lightweight yet high-strength, capable of withstanding significant loads, and can be configured in various spatial combinations to meet the needs of different drone equipment.

[0003] Currently, in order to achieve lightweight, stable and cost-effective drone trusses, aluminum alloy trusses are generally used. However, aluminum alloy trusses are highly flexible and are prone to bending after a collision during drone flight, which can lead to drone instability. Therefore, it is necessary to propose a bamboo fiber reinforced drone truss connector. Utility Model Content

[0004] To address the shortcomings of existing technologies, the aluminum alloy material used in current drone trusses makes them prone to bending after a collision, causing instability in drone flight. This invention proposes a bamboo fiber reinforced drone truss connector.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a bamboo fiber reinforced UAV truss connector, including a fuselage, a truss support mechanism fixedly connected to the bottom of the fuselage, and retractable rods rotatably connected to both sides of the truss support mechanism, with wings fixedly connected to the ends of the retractable rods;

[0006] The truss support mechanism includes a fixed frame, the inner cavity of which is provided with a bamboo fiber layer and a reinforcing rib. Support rods are fixedly connected to both sides of the bottom of the fixed frame. The support rods are inclined and a support rod is fixedly connected to the bottom of the support rods. Fixed blocks are fixedly connected to both sides of the outer wall of the fixed frame. The retractable rod is rotatably connected to the inner cavity of the fixed block.

[0007] Preferably, a first connecting plate is fixedly connected to the bottom of the fixing frame, and the support rod is fixedly connected to the bottom of the fixing frame through the first connecting plate.

[0008] Preferably, a T-shaped pipe is fixedly connected to the bottom of the support rod, and the support rod is fixedly connected to the inner cavity of the T-shaped pipe.

[0009] Preferably, both ends of the support rod extend through the outside of the tee pipe, and both ends of the support rod are fixedly connected to support sleeves.

[0010] Preferably, the fixed block has a rotating groove on the opposite side, a rotating block is rotatably connected in the rotating groove, and the retractable rod is fixedly connected to one end of the rotating block.

[0011] Preferably, a second connecting plate is fixedly connected to the outer wall of the fixing frame, and the fixing block is fixedly connected to the side wall of the fixing frame through the second connecting plate. The fixing block is offset and inclined, and the rotating groove is offset and inclined.

[0012] Preferably, a limiting frame is fixedly connected to one side of the fixed block, the limiting frame is snapped into the outer wall of the rotating block, and a screw is threadedly connected to the outer wall of the limiting block.

[0013] The advantages of this utility model are:

[0014] This invention incorporates bamboo fiber layers within the inner cavities of the fixed frame, retractable rod, support rod, and reinforcing ribs. The bamboo fiber is produced by mechanically crushing and breaking down bamboo into bundles of bamboo fibers. The reinforcing ribs are made of resin-based composite materials, and the outer wall of the fixed frame is made of plastic. Bamboo fiber possesses high strength, lightweight, and high toughness, and offers superior advantages in environmental friendliness, lightweight design, toughness, and economy. This results in a drone truss that is lightweight, high-strength, collision-resistant, and cost-effective, solving the problem of existing drone trusses made of aluminum alloy being prone to bending after collisions, leading to flight instability. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the front structure of this utility model;

[0017] Figure 2 This is a structural schematic diagram of the truss support mechanism of this utility model;

[0018] Figure 3 This is a schematic diagram of the retractable rod structure of this utility model.

[0019] Figure 4 This is a schematic diagram of the internal structure of the fixing frame of this utility model;

[0020] Figure 5 This utility model Figure 3 Enlarged structural diagram of section A in the middle.

[0021] In the diagram: 1. Fuselage; 2. Wing; 21. Retractable bar; 3. Truss support mechanism; 31. Fixing frame; 32. Bamboo fiber layer; 33. Reinforcing rib; 34. First connecting plate; 35. Support rod; 36. T-pipe; 37. Support rod; 38. Support sleeve; 39. Fixing block; 310. Rotating groove; 311. Rotating block; 312. Limiting frame; 313. Screw; 314. Second connecting plate. 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 scope of protection of the present utility model.

[0023] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0024] This application discloses a bamboo fiber reinforced unmanned aerial vehicle (UAV) truss connector. (Refer to...) Figures 1-5 A bamboo fiber reinforced drone truss connector includes a fuselage 1, a truss support mechanism 3 fixedly connected to the bottom of the fuselage 1, and retractable rods 21 rotatably connected to both sides of the truss support mechanism 3. The ends of the retractable rods 21 are fixedly connected to wings 2. The fuselage 1 and the retractable rods 21 are connected by the truss support mechanism 3, and the retractable rods 21 are connected to the wings 2. The rods in the truss support mechanism 3 and the retractable rods 21 are all made of bamboo fiber as the main material. Bamboo fiber has the characteristics of high strength, high toughness, light weight and high cost performance, which makes the drone truss have the advantages of being lightweight, high strength, collision-resistant and cost-effective.

[0025] The truss support mechanism 3 includes a fixed frame 31, with a bamboo fiber layer 32 inside the fixed frame 31. Reinforcing ribs 33 are installed inside the bamboo fiber layer 32. Support rods 35 are fixedly connected to both sides of the bottom of the fixed frame 31, and the support rods 35 are inclined. Support rods 37 are fixedly connected to the bottom of the support rods 35. Fixed blocks 39 are fixedly connected to both sides of the outer wall of the fixed frame 31. A retractable rod 21 is rotatably connected to the inner cavity of the fixed blocks 39. In actual implementation, bamboo fiber layers 32 are installed inside the fixed frame 31, retractable rods 21, support rods 35, and support rods 37, and reinforcing ribs 33 are installed inside the bamboo fiber layer 32. The bamboo fiber is produced by... Bamboo is mechanically crushed and broken down into bamboo fiber bundles. The reinforcing rib 33 is made of resin-based composite material, and the outer wall of the fixing frame 31 is made of plastic. Bamboo fiber has the characteristics of high strength, light weight and high toughness, and has better advantages in environmental protection, lightweight, shock resistance and economy. Thus, the UAV truss achieves the purpose of being lightweight, high-strength, collision-resistant and cost-effective. The support rod 35 and the support rod 37 work together to support the balance of the UAV. The fixing block 39 and the retraction rod 21 work together to rotate and retract, so that the wings 2 on both sides can be retracted to the side of the fuselage 1 in a staggered manner, reducing the probability of the wings 2 bending due to collision when not in use.

[0026] Reference Figure 1 , Figure 2 and Figure 4 The bottom of the fixed frame 31 is fixedly connected to a first connecting plate 34. The support rod 35 is fixedly connected to the bottom of the fixed frame 31 through the first connecting plate 34. The bottom of the support rod 35 is fixedly connected to a three-way pipe 36. The support rod 37 is fixedly connected to the inner cavity of the three-way pipe 36. Both ends of the support rod 37 penetrate the outer side of the three-way pipe 36. Both ends of the support rod 37 are fixedly connected to support sleeves 38. The support rod 37 is fixed to the bottom of the fixed frame 31 through the first connecting plate 34 to improve the stability of the connection between the support rod 35 and the fixed frame 31. One end of the support rod 35 is inserted into the side hole of the three-way pipe 36. The middle part of the outer wall of the support rod 37 is fixed in the inner cavity of the three-way pipe 36 to maintain balance. The support sleeve 38 supports the ground when the drone lands.

[0027] Reference Figure 3 and Figure 5A rotating groove 310 is provided on the opposite side of the fixed block 39. A rotating block 311 is rotatably connected in the rotating groove 310. A retractable rod 21 is fixedly connected to one end of the rotating block 311. A second connecting plate 314 is fixedly connected to the outer wall of the fixed frame 31, and the fixed block 39 is fixed to the side wall of the fixed frame 31 through the second connecting plate 314. The fixed block 39 is offset and tilted, and the rotating groove 310 is offset and tilted. A limit frame 312 is fixedly connected to one side of the fixed block 39. The limit frame 312 is snapped into the outer wall of the rotating block 311. A screw 313 is threadedly connected to the outer wall of the limit block. By pushing the retractable rod 21, the retractable rod 21 drives the rotating block 311 to be located in the rotating groove of the fixed block 39. When the 310 rotates, the rotating block 311 on the same side of the fuselage 1 is misaligned and tilted, causing the two retractable rods 21 on the same side to rotate upward and downward to the side of the fuselage 1 respectively. This allows the wing 2 to retract misaligned to the side of the fuselage 1. When the retractable rod 21 is extended, the limiting frame 312 restricts the rotating block 311 to maintain a stable opening angle. Tightening the screw 313 on the limiting frame 312 can stably lock the rotating block 311 and the retractable rod 21, keeping the wing 2 stable. This reduces the risk of the retractable rod 21 bending due to collision when the wing 2 is not in use. The fixing block 39 is connected to the fixing frame 31 through the second connecting plate 314, which improves the stability of the connection between the fixing block 39 and the fixing frame 31.

[0028] Working principle: In use, the fuselage 1 is fixed on the truss support mechanism 3, and the retractable rod 21 is pushed to unfold. The retractable rod 21 drives the rotating block 311 to rotate in the rotating groove 310 of the fixed block 39. The fixed block 39 is fixed on the fixed frame 31 through the second connecting plate 314. The limiting frame 312 locks the rotating block 311. The screw 313 locks the rotating block 311, so that the retractable rod 21 and the wing 2 unfold stably. The first connecting plate 34 supports the support rod 35 to open stably. The support rods 37 on both sides are connected to the ends of the support rod 35 through the three-way pipe 36 to keep the fixed frame 31 balanced. The support sleeve 38 is flat against the ground so that the UAV is balanced as a whole. By setting bamboo fiber layer 32 in the inner cavity of the fixed frame 31, retractable rod 21, support rod 35 and support rod 37, and setting reinforcing ribs 33 in the inner cavity of bamboo fiber layer 32, the fixed frame 31, retractable rod 21, support rod 35 and support rod 37 have the advantages of high strength, high toughness, high cost performance and light weight.

[0029] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A bamboo fiber reinforced UAV truss connector, comprising a fuselage (1), characterized in that: The fuselage (1) is fixedly connected to a truss support mechanism (3) at the bottom. Both sides of the truss support mechanism (3) are rotatably connected to retractable rods (21), and the ends of the retractable rods (21) are fixedly connected to wings (2). The truss support mechanism (3) includes a fixed frame (31), the inner cavity of the fixed frame (31) is provided with a fixed bamboo fiber layer (32), the inner cavity of the bamboo fiber layer (32) is provided with a reinforcing rib (33), the bottom two sides of the fixed frame (31) are fixedly connected with support rods (35), the support rods (35) are inclined, the bottom of the support rods (35) is fixedly connected with a support rod (37), the outer walls of the fixed frame (31) are fixedly connected with fixed blocks (39), and the retractable rod (21) is rotatably connected to the inner cavity of the fixed block (39).

2. The bamboo fiber reinforced UAV truss connector according to claim 1, characterized in that: The bottom of the fixed frame (31) is fixedly connected to a first connecting plate (34), and the support rod (35) is fixedly connected to the bottom of the fixed frame (31) through the first connecting plate (34).

3. The bamboo fiber reinforced UAV truss connector according to claim 1, characterized in that: The bottom of the support rod (35) is fixedly connected to a three-way pipe (36), and the support rod (37) is fixedly connected to the inner cavity of the three-way pipe (36).

4. The bamboo fiber reinforced UAV truss connector according to claim 3, characterized in that: Both ends of the support rod (37) pass through the outside of the tee pipe (36), and both ends of the support rod (37) are fixedly connected to support sleeves (38).

5. The bamboo fiber reinforced UAV truss connector according to claim 1, characterized in that: The fixed block (39) has a rotating groove (310) on the opposite side, and a rotating block (311) is rotatably connected in the rotating groove (310). The retractable rod (21) is fixedly connected to one end of the rotating block (311).

6. The bamboo fiber reinforced UAV truss connector according to claim 5, characterized in that: The outer wall of the fixed frame (31) is fixedly connected to a second connecting plate (314), and the fixed block (39) is fixedly connected to the side wall of the fixed frame (31) through the second connecting plate (314). The fixed block (39) is offset and inclined, and the rotating groove (310) is offset and inclined.

7. A bamboo fiber reinforced UAV truss connector according to claim 6, characterized in that: The fixed block (39) is fixedly connected to a limiting frame (312) on one side. The limiting frame (312) is snapped onto the outer wall of the rotating block (311). A screw (313) is threaded onto the outer wall of the limiting frame.