Fixed undercarriage of unmanned aerial vehicle
By designing a drone fixed landing gear made of high-strength, lightweight nylon material, the problem of inconvenience in fixing and charging caused by the streamlined design of drones was solved, realizing a simplified fixing and charging process and reducing cost and weight.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENYANG HUARUAN TECH CO LTD
- Filing Date
- 2025-06-10
- Publication Date
- 2026-05-19
AI Technical Summary
The streamlined design of existing industrial-grade drones makes the process of fixing the smart drone nest complex, increasing the difficulty and cost of design and manufacturing. At the same time, the charging process requires the removal of the battery, which is inconvenient.
Design a fixed landing gear for drones, using a 3D-printed base and carbon tube connection structure made of high-strength, lightweight nylon material, combined with rectangularly distributed fasteners and a charging plate, to simplify the fixing and charging mechanism of the landing gear.
This simplifies the fixing and charging process for drones, reduces the weight and cost of the landing gear, and ensures structural stability and convenient charging.
Smart Images

Figure CN224256978U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of unmanned aerial vehicle (UAV) technology, specifically to a fixed landing gear for UAVs. Background Technology
[0002] Currently, industrial-grade drones produced by major manufacturers tend to have streamlined designs, primarily to reduce the impact of airflow during flight, thereby achieving energy conservation, reducing emissions, and improving endurance. Smart drone nests employing battery swapping or charging modes can significantly alleviate the pressure on drone range. However, while this streamlined design optimizes flight performance, its unique characteristics necessitate more complex motion structures and component configurations in the smart nest for securing the drone. This not only increases design and manufacturing difficulty but also leads to a significant increase in cost, causing numerous inconveniences for securing drones in the smart nest. Furthermore, some existing drone models (such as the DJI Mavic 3) require the battery to be removed and a dedicated charger to be used for charging.
[0003] Therefore, in the method of fixing drones in smart nests, a landing gear that is easy to fix, simple in structure, and reliable in strength is essential. Utility Model Content
[0004] Therefore, this utility model provides a fixed landing gear for unmanned aerial vehicles (UAVs) to solve one or more of the aforementioned technical problems.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] A fixed landing gear for an unmanned aerial vehicle (UAV) includes:
[0007] A base for mounting under the fuselage of a drone;
[0008] A left front fixing member is provided at the lower left front of the base, and the left front fixing member is connected to the base via a carbon tube;
[0009] The right front fixing component is located at the lower right front of the base, and the right front fixing component is connected to the base and the left front fixing component respectively through carbon tubes;
[0010] The left rear fixing member is located at the lower left rear of the base, and the left rear fixing member is connected to the base and the left front fixing member respectively through carbon tubes;
[0011] The right rear fixing component is located at the lower right rear of the base. The right rear fixing component is connected to the base, the right front fixing component, and the left rear fixing component respectively via carbon tubes.
[0012] Two charging plates are respectively located on the left side of the left rear fixing member and the right side of the right rear fixing member. The charging plates are connected to charging cables, and one end of the charging cables is provided with a charging plug that is compatible with the charging port of the drone.
[0013] The left front fixing component, right front fixing component, left rear fixing component, and right rear fixing component are arranged in a rectangular shape and their bottom surfaces are on the same plane.
[0014] Furthermore, the base, left front fixing member, right front fixing member, left rear fixing member, and right rear fixing member are all 3D printed from high-strength, lightweight nylon material.
[0015] Furthermore, the base is provided with a clearance window corresponding to the position of the lens and radar on the belly of the drone, and other positions of the base are provided with a hollow structure for weight reduction.
[0016] Furthermore, the base, left front fixing member, right front fixing member, left rear fixing member and right rear fixing member are respectively provided with insertion blind holes, and the end of the carbon tube is inserted and fixed in the insertion blind hole and glued.
[0017] Furthermore, the upper side of the base is adapted to the belly of the drone and is fixed with screws.
[0018] Furthermore, the two charging plates are fixed to the sides of the left and right rear fixing members respectively by self-tapping screws.
[0019] This utility model has the following advantages:
[0020] 1. The left front fixing component, right front fixing component, left rear fixing component, and right rear fixing component are arranged in a rectangular shape and their bottom surfaces are on the same plane, so that the bottom of the entire landing gear has a regular rectangular frame, which provides conditions for simplifying the fixing mechanism of the intelligent aircraft nest.
[0021] 2. Two charging plates, located on the left side of the left rear fixing component and the right side of the right rear fixing component respectively, can charge the drone, thus simplifying the charging mechanism of the smart drone nest.
[0022] 3. The base, left front fixing component, right front fixing component, left rear fixing component, and right rear fixing component are all 3D printed from high-strength, lightweight nylon material and connected by carbon tubing, making the weight of the entire landing gear very low. Moreover, the carbon tubing has good structural strength, ensuring the overall structural stability of the landing gear.
[0023] 4. The clearance window on the base not only ensures that the drone's camera and radar are not obstructed by the base, but also reduces the weight of the base; the hollow structure design further reduces the weight of the landing gear.
[0024] 5. The carbon fiber tubes are connected to the base, left front fixing component, right front fixing component, left rear fixing component, and right rear fixing component by plugging and fastening with glue to prevent the landing gear from becoming loose or falling apart after long-term use.
[0025] 6. The upper side of the base is adapted to the belly of the drone, ensuring a close fit between the base and the drone; it is secured with screws to prevent the base from detaching from the drone.
[0026] 7. The charging board is fixed to the left and right rear fixing parts with self-tapping screws, which makes the fixing more precise and ensures that it can receive power from the corresponding mechanism of the smart nest.
[0027] The above overview is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of this application will become readily apparent from the accompanying drawings and the following detailed description. Attached Figure Description
[0028] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.
[0029] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the conditions under which the present invention can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that the present invention can produce, should still fall within the scope of the technical content disclosed in the present invention.
[0030] Figure 1 A schematic diagram of a fixed landing gear for an unmanned aerial vehicle (UAV) provided in an embodiment of this utility model;
[0031] Figure 2 This is a structural schematic diagram of a fixed landing gear for an unmanned aerial vehicle (UAV) from another viewpoint, provided as an embodiment of the present invention.
[0032] Figure 3 This is a schematic diagram of a fixed landing gear for a drone installed under the drone, provided as an embodiment of the present invention.
[0033] In the picture: 1. Base; 2. Front left fixing piece; 3. Front right fixing piece; 4. Rear left fixing piece; 5. Rear right fixing piece; 6. Carbon tube; 7. Charging plate; 8. Clearance window; 9. Hollow structure. Detailed Implementation
[0034] The following specific embodiments illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0035] As shown in the figure, this embodiment provides a fixed landing gear for a drone, including a base 1, a left front fixing member 2, a right front fixing member 3, a left rear fixing member 4, a right rear fixing member 5, two charging plates 7, and two charging cables (not shown in the figure).
[0036] Base 1 is used to connect to the fuselage of the UAV and forms the basis for the structural connection between the landing gear and the UAV. The left front fixing member 2 is located at the lower left front of base 1 and is connected to base 1 via a carbon fiber tube 6. The right front fixing member 3 is located at the lower right front of base 1 and is connected to both base 1 and left front fixing member 2 via carbon fiber tubes 6. The left rear fixing member 4 is located at the lower left rear of base 1 and is connected to both base 1 and left front fixing member 2 via carbon fiber tubes 6. The right rear fixing member 5 is located at the lower right rear of base 1 and is connected to base 1, right front fixing member 3, and left rear fixing member 4 via carbon fiber tubes 6.
[0037] Two charging pads 7 are respectively located on the left side of the left rear fixing member 4 and the right side of the right rear fixing member 5. Each charging pad 7 is connected to a charging cable, and the end of the charging cable away from the charging pad 7 is provided with a charging plug adapted to the drone's charging port. Generally, two charging ports are provided somewhere on the belly of the drone, and the charging ports are electrically connected to the internal battery of the drone. When the charging pad 7 receives power, it transfers electrical energy to the charging port through the charging cable and charging plug, thereby charging the battery. For drones without a charging port (such as the DJI Mavic 3 drone), a slight modification is needed to install a charging port on the side of the belly of the drone.
[0038] Among them, the left front fixing part 2, the right front fixing part 3, the left rear fixing part 4 and the right rear fixing part 5 are arranged in a rectangle and their bottom surfaces are on the same plane. In this way, the bottom of the entire landing gear forms a regular rectangular frame structure and the bottom surface is flat, which provides conditions for the simplification of the corresponding mechanism of the intelligent aircraft nest.
[0039] The left front fixing member 2, right front fixing member 3, left rear fixing member 4, and right rear fixing member 5 are arranged in a rectangular shape with their bottom surfaces on the same plane, making the parking position of the intelligent drone nest a regular shape and the bottom of the entire landing gear a regular rectangular frame. This simplifies the fixing mechanism of the intelligent drone nest (for example, a pair of clamps clamp the left front fixing member 2 and the right front fixing member 3 respectively, so that the motion mechanism in the fixing method can only perform linear motion, avoiding the use of complex mechanisms required for other complex motions). The two charging plates 7, respectively set on the left side of the left rear fixing member 4 and the right side of the right rear fixing member 5, enable the intelligent drone nest to charge the drone during the fixing process (for example, when a pair of conductive clamps clamp the left rear fixing member 4 and the right rear fixing member 5 respectively, the conductive clamps supply power to the two charging plates 7), thus simplifying the charging mechanism of the intelligent drone nest.
[0040] It should be noted that this application aims to provide a landing gear that is easier to integrate with a smart nacelle, thereby enabling the smart nacelle to use a simpler motion structure and component configuration. It is not intended to directly solve the problem of the complex structure of the smart nacelle, nor is it intended to protect the simplified structure of the smart nacelle (therefore, the relevant structure of the smart nacelle is not described in this application).
[0041] In this embodiment, the base 1, the left front fixing member 2, the right front fixing member 3, the left rear fixing member 4, and the right rear fixing member 5 are all 3D printed from high-strength, lightweight nylon material.
[0042] The base 1, left front fixing part 2, right front fixing part 3, left rear fixing part 4 and right rear fixing part 5 are all 3D printed from high-strength, lightweight nylon material and connected by carbon tubes 6, which makes the weight of the entire landing gear very low. Moreover, the carbon tubes 6 have good structural strength, ensuring the overall structural stability of the landing gear.
[0043] In this embodiment, the base 1 is provided with an avoidance window 8 corresponding to the position of the lens and radar on the belly of the drone, and other positions of the base 1 are provided with a weight reduction hollow structure 9.
[0044] The clearance window 8 on the base 1 not only ensures that the drone's camera and radar are not blocked by the base 1, but also reduces the weight of the base 1; the hollow structure 9 further reduces the weight of the landing gear.
[0045] In this embodiment, the base 1, the left front fixing member 2, the right front fixing member 3, the left rear fixing member 4 and the right rear fixing member 5 are respectively provided with insertion blind holes, and the end of the carbon tube 6 is inserted and fixed in the insertion blind hole and glued.
[0046] The carbon tube 6 is connected to the base 1, left front fixing part 2, right front fixing part 3, left rear fixing part 4 and right rear fixing part 5 by plugging and fixing with glue to prevent the landing gear from becoming loose or falling apart after long-term use.
[0047] In this embodiment, the upper side of the base 1 is adapted to the belly of the drone and is fixed by screws.
[0048] The upper side of the base 1 is adapted to the belly of the drone, ensuring that the base 1 fits snugly against the belly of the drone; it is fixed with screws to prevent the base 1 from detaching from the drone.
[0049] In this embodiment, the two charging plates 7 are fixed to the sides of the left rear fixing member 4 and the right rear fixing member 5 respectively by self-tapping screws.
[0050] The charging plate 7 is fixed to the left rear fixing part 4 and the right rear fixing part 5 with self-tapping screws, which makes the fixing more precise and ensures that it can receive power from the corresponding mechanism of the smart nest.
[0051] In this embodiment, the carbon tube 6 has an outer diameter of 4mm and an inner diameter of 2mm; correspondingly, the diameter of the blind holes on the base 1, the left front fixing member 2, the right front fixing member 3, the left rear fixing member 4 and the right rear fixing member 5 is 4mm.
[0052] Although the present invention has been described in detail above with general descriptions and specific embodiments, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, all such modifications or improvements made without departing from the spirit of the present invention fall within the scope of protection claimed by the present invention.
Claims
1. A fixed landing gear for an unmanned aerial vehicle (UAV), characterized in that, include: A base for mounting under the fuselage of a drone; A left front fixing member is provided at the lower left front of the base, and the left front fixing member is connected to the base via a carbon tube; The right front fixing component is located at the lower right front of the base, and the right front fixing component is connected to the base and the left front fixing component respectively through carbon tubes; The left rear fixing member is located at the lower left rear of the base, and the left rear fixing member is connected to the base and the left front fixing member respectively through carbon tubes; The right rear fixing component is located at the lower right rear of the base. The right rear fixing component is connected to the base, the right front fixing component, and the left rear fixing component respectively via carbon tubes. Two charging plates are respectively located on the left side of the left rear fixing member and the right side of the right rear fixing member. The charging plates are connected to charging cables, and one end of the charging cables is provided with a charging plug that is compatible with the charging port of the drone. The left front fixing component, right front fixing component, left rear fixing component, and right rear fixing component are arranged in a rectangular shape and their bottom surfaces are on the same plane.
2. The fixed landing gear for a drone according to claim 1, characterized in that, The base, left front fixing member, right front fixing member, left rear fixing member, and right rear fixing member are all 3D printed from high-strength, lightweight nylon material.
3. The fixed landing gear for a drone according to claim 1, characterized in that, The base has a clearance window corresponding to the position of the lens and radar on the belly of the drone, and other positions of the base have a hollow structure for weight reduction.
4. The fixed landing gear for a UAV according to claim 1, characterized in that, The base, left front fixing member, right front fixing member, left rear fixing member and right rear fixing member are each provided with a blind insertion hole, and the end of the carbon tube is inserted and fixed in the blind insertion hole and glued.
5. The fixed landing gear for a drone according to claim 1, characterized in that, The upper side of the base is adapted to the belly of the drone and is fixed with screws.
6. The fixed landing gear for a drone according to claim 1, characterized in that, The two charging plates are fixed to the sides of the left and right rear fixing members respectively by self-tapping screws.