Unmanned aerial vehicle paddle protection device
The snap-fit assembly and threaded hole structure between the blade protection frame and the connecting column solves the problem of inconvenient disassembly of the existing blade protection cover, enables rapid replacement and maintenance of the UAV blades, and improves the practicality and safety of the UAV.
Patent Information
- Application Number
- CN202422996418.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-05
- Publication Date
- 2025-10-03
- Estimated Expiration
- 2034-12-05
AI Technical Summary
Existing blade guards are not easy to remove quickly during the maintenance and replacement of drones, which increases operation time and cost and limits the drone's multi-functional application and rapid response capabilities.
The blade protection frame is connected to the connecting column through a snap-on assembly, and quick disassembly is achieved using a claw and slide groove structure. It is fixed with threaded holes and fasteners, which simplifies the assembly process of the blade protection frame.
The rapid disassembly and installation of the UAV blade protection frame is realized, which improves the flexibility and safety of the UAV, reduces maintenance costs, and improves the rapid response capability of the equipment.
Smart Images

Figure CN223408152U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of unmanned aerial vehicles (UAVs), and in particular to a blade protection device for UAVs. Background Art
[0002] As drone technology continues to develop and become more prevalent, drones are playing an increasingly important role in numerous fields. However, the high-speed rotating blades of drones during flight pose numerous safety risks. On the one hand, exposed blades can easily cause accidental injury to nearby personnel, especially in densely populated areas or environments with limited operating space, such as urban aerial photography and scientific research testing on campus. Accidental contact with high-speed rotating blades can result in severe cuts or even more serious bodily injury. On the other hand, the blades can collide with surrounding obstacles during flight, which can not only damage the blades, causing the drone to become unbalanced or even crash, increasing equipment maintenance costs and operational risks, but can also cause secondary injuries due to flying debris from the collision.
[0003] To solve these problems, blade protection covers came into being. Existing blade protection covers are usually connected to the drone body or blade connection structure in a fixed installation manner, such as a drone with an integrated battery charging adapter plate with publication number: CN219487746U. Although this fixed installation method can protect the blades to a certain extent, it brings great inconvenience to the drone's daily maintenance, transportation, storage, and blade replacement operations. When it is necessary to perform in-depth maintenance on the drone or inspect or replace the blades, since the protection cover is difficult to disassemble quickly, operators often need to spend a lot of time and energy to remove the protection cover, which not only reduces efficiency, but also easily causes damage to the protection cover and related parts of the drone during repeated disassembly, further shortening the service life of the equipment and increasing the cost of use. In addition, when it is necessary to frequently change different operating scenes or adjust the drone configuration according to mission requirements, the traditional fixed-installed blade protection cover cannot meet the requirements of fast switching and flexible adjustment, limiting the multi-functional application and rapid response capabilities of the drone.
[0004] To sum up, there are obvious contradictions and shortcomings between the existing blade guards in ensuring safety and achieving rapid disassembly and assembly to adapt to various usage scenarios and maintenance needs. There is an urgent need for a new blade guard structure that can achieve rapid disassembly and assembly to improve the overall practicality, safety and flexibility of drones, and promote the widespread application of drone technology in more complex environments and diversified tasks. Utility Model Content
[0005] In view of the deficiencies in the prior art, the utility model provides a UAV blade protection device to solve the problems of inconvenience and high cost in replacing the existing blade protection cover.
[0006] The purpose of the utility model is achieved as follows: A drone blade protection device includes a mainboard mounting frame, the bottom of the mainboard mounting frame is connected to a battery mounting plate via a connecting column, a battery compartment is formed between the mainboard mounting frame and the battery mounting plate, a blade protection frame is sleeved on the connecting column, and the blade protection frame is connected to the mainboard mounting frame via fasteners.
[0007] Furthermore, the blade protection frame is connected to the connecting column through a snap assembly.
[0008] Furthermore, the buckle assembly includes a claw arranged on the inner side of the blade protection frame, and a sliding groove and a clamping groove are formed between the claw and the inner side of the blade protection frame.
[0009] Furthermore, the blade protection frame is provided with a plurality of lower assembly holes, and the mainboard mounting frame is correspondingly provided with a plurality of upper assembly holes, and the fasteners complete the fixed assembly of the blade protection frame and the mainboard mounting frame through the upper assembly holes and the lower assembly holes.
[0010] Furthermore, the fasteners are screws.
[0011] Compared with the prior art, the beneficial effects of the present invention are:
[0012] In this utility model, the battery mounting plate is placed at the bottom of the mainboard mounting frame, and the top platform of the mainboard mounting frame can expand various equipment to improve flight efficiency; the blade protection frame in this utility model is assembled with the connecting column through a snap-on installation method, and the blade protection frame can be quickly disassembled without professional tools, realizing rapid conversion of aircraft models and convenient and quick replacement. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are merely embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.
[0014] Figure 1 This is a schematic structural diagram of the utility model.
[0015] Figure 2 It is a side view of the utility model.
[0016] Figure 3 This is a schematic diagram of the blade protection frame structure of the present invention.
[0017] Figure 4 for Figure 3Enlarged view of point A in the middle.
[0018] Among them, 100 mainboard mounting frame, 200 battery mounting plate, 300 connecting column, 400 blade protection frame, 401 snap assembly, 401a claw, 401b slide, 401c slot, 402 mounting bar, 403 threaded hole, 500 fastener. DETAILED DESCRIPTION
[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0020] like Figure 1-4 The drone blade protection device shown includes a mainboard mounting frame 100, the bottom of the mainboard mounting frame 100 is connected to a battery mounting plate 200 via a connecting column 300, a battery compartment is formed between the mainboard mounting frame 100 and the battery mounting plate 200, and a blade protection frame 400 is sleeved on the connecting column 300, and the blade protection frame 400 is connected to the mainboard mounting frame 100 via fasteners 500.
[0021] Specifically, the mainboard frame adopts a carbon fiber square mainboard with a hollow design in the middle, which greatly reduces its own weight while ensuring overall strength; the connecting column 300 adopts an aluminum column to further reduce weight, and the battery mounting plate 200 also adopts carbon fiber material and has a hollow design; the blade protection frame 400 is square as a whole and adopts plastic material. The four areas corresponding to the blades are processed with approximately circular protection frames, with a hollow design in the middle, and share four mounting bars 402 with the four protection frames. It is connected to the connecting column 300 through the four mounting bars 402, and the connection between the four mounting bars 402 is connected to the fastener 500.
[0022] Furthermore, the blade protection frame 400 is connected to the connecting column 300 via a snap assembly 401 .
[0023] Specifically, the buckle assembly 401 is arranged inside the four mounting bars 402. Such a design ensures that the blade protection frame 400 uses as little material as possible, reduces cost, and reduces weight.
[0024] Furthermore, the buckle assembly 401 includes a claw 401 a disposed on the inner side of the blade protection frame 400 , and a sliding groove 401 b and a clamping groove 401 c are formed between the claw 401 a and the inner side of the blade protection frame 400 .
[0025] Specifically, the claw 401a is L-shaped as a whole, and the design of the slide groove 401b facilitates sliding into the connecting column 300 when it is connected. The slot 401c is circular and has the same shape as the connecting column 300, which facilitates the connection. The diameter of the closing part of the claw 401a is smaller than the outer diameter of the column, and the sliding insertion is achieved by relying on the elasticity of the plastic claw 401a itself; such a design structure can achieve quick assembly.
[0026] Furthermore, a plurality of lower assembly holes are opened on the blade protection frame 400, and a plurality of upper assembly holes are correspondingly opened on the mainboard mounting frame 100. The fasteners 500 complete the fixed assembly of the blade protection frame 400 and the mainboard mounting frame 100 through the upper assembly holes and the lower assembly holes.
[0027] Specifically, the upper assembly hole and the lower assembly hole both use threaded holes 403, and the fasteners 500 are hand screws, so that assembly is convenient and quick; it is not limited to this, and bolts can also be used in combination with through holes to achieve assembly; large-headed hand screws can also be used, screwed in from the bottom for assembly, and the large-headed end can also be used as a support foot.
[0028] The above embodiments are only intended to help understand the method and core concept of the present invention. It should be noted that those skilled in the art can make various improvements and modifications to the present invention without departing from the principles of the present invention, and such improvements and modifications also fall within the scope of protection of the claims of the present invention.
Claims
1. A drone blade protection device, comprising a mainboard mounting frame, wherein the bottom of the mainboard mounting frame (100) is connected to a battery mounting plate (200) via a connecting column (300), and a battery compartment is formed between the mainboard mounting frame (100) and the battery mounting plate (200), characterized in that: A blade protection frame (400) is sleeved on the connecting column (300), and the blade protection frame (400) is connected to the mainboard mounting frame (100) via a fastener (500).
2. The UAV blade protection device according to claim 1, characterized in that: The blade protection frame (400) is connected to the connecting column (300) via a snap assembly (401).
3. The UAV blade protection device according to claim 2, characterized in that: The buckle assembly (401) comprises a claw (401a) arranged on the inner side of the blade protection frame (400), and a sliding groove (401b) and a clamping groove (401c) are formed between the claw (401a) and the inner side of the blade protection frame (400).
4. A UAV blade protection device according to any one of claims 1-3, characterized in that: The blade protection frame (400) is provided with a plurality of lower assembly holes, and the mainboard mounting frame (100) is correspondingly provided with a plurality of upper assembly holes. The fasteners (500) complete the fixed assembly of the blade protection frame (400) and the mainboard mounting frame (100) through the upper assembly holes and the lower assembly holes.
5. A UAV blade protection device according to any one of claims 1-3, characterized in that: The fastener (500) is a screw.
Citation Information
Patent Citations
Through machine integrated with battery charging adapter plate
CN219487746U