Foldable unmanned aerial vehicle frame

The design of the foldable cross-shaped frame and V-shaped buffer frame solves the problems of large drone frame size and insufficient cushioning, achieving landing cushioning and portability, and improving the reliability and service life of the drone.

CN224117540UActive Publication Date: 2026-04-14SUZHOU POLYTECHNIC INST OF AGRI
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SUZHOU POLYTECHNIC INST OF AGRI
Filing Date
2025-06-05
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

Traditional drone frames are bulky and lack cushioning, making them inconvenient to carry and prone to component damage, thus shortening their lifespan.

Method used

It adopts a foldable cross-shaped frame structure and a V-shaped buffer frame design, combined with the parallel arrangement of the upper, middle and lower mounting plates. The wing arms are hinged to the middle mounting plate, and the buffer frame buffers the landing impact force.

Benefits of technology

It achieves cushioning and shock absorption during drone landing, reducing component damage, improving reliability and service life, and can be folded to reduce volume when not in use, making it easy to carry and transport.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a foldable unmanned aerial vehicle frame which comprises an upper installation piece, a middle installation piece, a lower installation piece, a buffer frame and a wing arm, the upper installation piece, the middle installation piece and the lower installation piece are arranged in parallel from top to bottom at intervals, the buffer frame is connected with the upper installation piece and the middle installation piece, and the wing arm is arranged between the middle installation piece and the lower installation piece. The wing arms are of a cross-shaped folding frame structure and are hinged to the middle installation piece. The buffer rack can buffer landing vibration and protect the battery and the control circuit; the wing arms are foldable, the size of the unmanned aerial vehicle is reduced, and carrying and transportation are convenient.
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Description

Technical Field

[0001] This utility model relates to a foldable drone frame. Background Technology

[0002] Drones, as high-tech aircraft, have wide applications in many fields, but traditional drone frames have some limitations. Most drone frames have a relatively fixed structure, and when not in flight, they are large and occupy a lot of space, causing great inconvenience for carrying and transporting drones, especially when carrying multiple drones or using them in confined spaces. When a drone lands, the frame needs to withstand a certain amount of impact. Traditional frames often lack effective cushioning structures, failing to adequately absorb the impact during landing. Over time, this can easily damage the frame and the batteries, control circuits, and other components mounted on it, shortening the drone's lifespan. Summary of the Invention

[0003] This invention provides a foldable drone frame to address the problems existing in the prior art.

[0004] The technical solutions adopted in this utility model are as follows:

[0005] A foldable drone frame, characterized in that it includes an upper mounting plate, a middle mounting plate, a lower mounting plate, a buffer frame, and a wing arm. The upper mounting plate, the middle mounting plate, and the lower mounting plate are arranged parallel to each other from top to bottom and spaced apart. The buffer frame connects the upper mounting plate and the middle mounting plate. The wing arm is located between the middle mounting plate and the lower mounting plate. The wing arm adopts a cross-folding frame structure and is hinged to the middle mounting plate.

[0006] Furthermore, the buffer frame is a V-shaped frame, with an upper mounting plate and a middle mounting plate fixed to the two side walls of the buffer frame, respectively.

[0007] Furthermore, the wing arm includes a first rod, a second rod, a mounting base, and a rotating block. The rotating block has two rotatable free ends. Two second rods are respectively interlocked with the two free ends. A mounting base is fixed at the end of each second rod. A first rod is hinged to each mounting base. The two first rods on the same side of the two second rods are rotatably connected to the intermediate mounting plate with the same rotation center.

[0008] Furthermore, two hinges are symmetrically arranged on the lower end face of the intermediate mounting plate, and the two first rods on the same side are sleeved on one hinge.

[0009] Furthermore, the rotating block includes a first sleeve and a second sleeve, the first sleeve and the second sleeve are hinged to each other, and two second rods are respectively inserted into the two sleeves.

[0010] This utility model has the following beneficial effects:

[0011] (1) A V-shaped buffer frame is used to connect the upper mounting plate and the middle mounting plate. This structure can effectively buffer the impact force of the ground when the UAV lands, reduce the impact of vibration on components such as the battery and control circuit, and improve the reliability and service life of the UAV.

[0012] (2) The wing arms adopt a cross-folding frame structure and are hinged to the middle mounting plate. When not in use, the wing arms can be folded up, which greatly reduces the size of the UAV, making it easier to carry and transport, and making the UAV easier to move and store. It is especially suitable for use in field operations or scenarios that require frequent movement.

[0013] (3) The upper mounting plate, middle mounting plate and lower mounting plate are arranged in parallel and spaced from top to bottom to form a stable structural frame, which provides good stability for the flight of the UAV, reduces vibration and sway during flight, helps to obtain clearer and more stable shooting images, and improves the flight experience.

[0014] (4) The wing arm has an ingenious structural design, consisting of a first rod, a second rod, a mounting base and a rotating block. The wing arm can be flexibly folded and unfolded through the rotatable free end on the rotating block and the cross-plugging method, while ensuring the structural stability of the wing arm after unfolding. The connection method is easy to disassemble and maintain. Attached Figure Description

[0015] Figure 1 This is a diagram showing the unfolded state of this utility model.

[0016] Figure 2 This is a diagram of the folded state of this utility model.

[0017] Figure 3 This is a structural diagram of the wing arm.

[0018] Figure 4 This is an assembly drawing of the upper mounting plate, middle mounting plate, lower mounting plate, and buffer frame.

[0019] Figure 5 This is a structural diagram of the block. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings.

[0021] like Figures 1 to 4This utility model discloses a foldable drone frame, comprising an upper mounting plate 1, a middle mounting plate 2, a lower mounting plate 3, a buffer frame 4, and a wing arm 5. The upper mounting plate 1, the middle mounting plate 2, and the lower mounting plate 3 are arranged parallel to each other from top to bottom and spaced apart, and the upper mounting plate 1 and the middle mounting plate 2 are both fixed to the buffer frame 4. The wing arm 5 is located between the middle mounting plate 2 and the lower mounting plate 3, and the wing arm 5 adopts a cross-folding frame structure and is hinged to the middle mounting plate 2.

[0022] The buffer frame 4 is a V-shaped frame, and the two side walls of the buffer frame 4 are respectively fixed to the upper mounting plate 1 and the middle mounting plate 2 by bolts. In use, the battery and control circuit are installed on the upper mounting plate 1. The V-shaped frame of the buffer frame 4 can buffer the vibration of landing.

[0023] The wing arm 5 of this utility model includes a first rod 51, a second rod 52, a mounting base 53, and a rotating block 54. The rotating block 54 is provided with two rotatable free ends. The two second rods 52 are respectively interposed and inserted into the two free ends. A mounting base 53 is fixed at the end of each second rod 52. A first rod 51 is hinged to each mounting base 53. The two first rods 51 on the same side of the two second rods 52 are rotatably connected to the intermediate mounting plate 2 with the same rotation center.

[0024] To facilitate the rotatable connection of the first rod 51 to the intermediate mounting plate 2, two hinges 21 are symmetrically provided on the lower end face of the intermediate mounting plate 2, and the two first rods 51 on the same side are sleeved on one hinge 21. Bolts are passed through the lower mounting plate 3 and threadedly connected to the hinge 21, thereby fixing the intermediate mounting plate 2 and the lower mounting plate 3.

[0025] like Figure 5 The rotating block 54 includes a first sleeve and a second sleeve. Both the first sleeve and the second sleeve are provided with connecting blocks on their outer walls. The two connecting blocks are hinged to each other by a pin. Two second rods 52 are respectively inserted into the two sleeves.

[0026] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements can be made without departing from the principle of the present utility model, and these improvements should also be considered within the protection scope of the present utility model.

Claims

1. A foldable drone frame, characterized in that: It includes an upper mounting plate (1), a middle mounting plate (2), a lower mounting plate (3), a buffer frame (4), and a wing arm (5). The upper mounting plate (1), the middle mounting plate (2), and the lower mounting plate (3) are arranged in parallel and spaced apart from top to bottom. The buffer frame (4) connects the upper mounting plate (1) and the middle mounting plate (2). The wing arm (5) is located between the middle mounting plate (2) and the lower mounting plate (3). The wing arm (5) adopts a cross-folding frame structure and is hinged to the middle mounting plate (2).

2. The foldable drone frame as described in claim 1, characterized in that: The buffer frame (4) is a V-shaped frame, and the two side walls of the buffer frame (4) are respectively fixed with the upper mounting plate (1) and the middle mounting plate (2).

3. The foldable drone frame as described in claim 1, characterized in that: The wing arm (5) includes a first rod (51), a second rod (52), a mounting base (53), and a rotating block (54). The rotating block (54) has two rotatable free ends. The two second rods (52) are respectively inserted into the two free ends in a cross manner. A mounting base (53) is fixed at the end of each second rod (52). A first rod (51) is hinged to each mounting base (53). The two first rods (51) on the same side of the two second rods are rotatably connected to the middle mounting plate (2) with the same rotation center.

4. The foldable drone frame as described in claim 3, characterized in that: Two hinges (21) are symmetrically arranged on the lower end face of the intermediate mounting plate (2), and the two first rods (51) on the same side are sleeved on one hinge (21).

5. The foldable drone frame as described in claim 3, characterized in that: The rotating block (54) includes a first sleeve and a second sleeve, the first sleeve and the second sleeve are hinged to each other, and two second rods (52) are respectively inserted into the two sleeves.