An unmanned aerial vehicle landing gear

Abstract

The utility model discloses an unmanned plane landing gear relates to unmanned plane accessory technical field, including unmanned plane body and four landing poles of symmetry installation in the lower surface of unmanned plane body, and landing pole includes with the fixed connection of unmanned plane body lower surface fixed link, and the lower end swing joint of fixed link is provided with the bottom bar subassembly of rotatable and can unfold, the utility model discloses through rotatable and the bottom bar subassembly design of can change, cooperation control piece adjustment support rod opening angle, effectively increase the ground contact area of soft ground such as snow ground, mud ground, prevent subsidence and roll over, through with the bottom bar subassembly connection of same side, make landing pole become concave shape, improve the stability of landing on the flat ground.

Description

Technical Field

[0001] This utility model relates to the field of drone accessories, and in particular to a drone landing gear. Background Technology

[0002] As a highly efficient and flexible aerial operation platform, unmanned aerial vehicles (UAVs) have been widely used in various fields such as aerial photography, surveying and mapping, agricultural plant protection, and emergency rescue. Landing gear, as a key component of UAVs, directly affects the stability and overall safety of their landing process. A well-designed landing gear system can effectively absorb impact energy and protect the fuselage and mission equipment from impact damage upon landing.

[0003] However, traditional drone landing gear structures have relatively limited functionality, typically employing fixed or simple telescopic designs, making them ill-suited for landing in diverse and complex terrains. When landing on soft surfaces like snow, the landing gear can easily sink into the snow, causing the aircraft to tilt or even tip over. On muddy or uneven ground, it may wobble or skid due to instability. Even on flat, hard ground, the rigid structure of the landing gear lacks the ability to adapt to minor changes in the ground, resulting in poor overall adaptability and limiting the application of drones in a wider range of environments. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing drone landing gear structures, which have relatively limited functionality, and to propose a drone landing gear.

[0005] To address the problems existing in the prior art, the present invention adopts the following technical solution: A drone landing gear includes a drone body and four landing bars symmetrically mounted on the lower surface of the drone body. Each landing bar includes a fixed bar that is fixedly connected to the lower surface of the drone body. A connecting bar is movably connected to the lower end of the fixed bar. A rotatable and deployable base rod assembly is provided at the lower end of the connecting bar.

[0006] Preferably, the base rod assembly includes a support column rotatably connected to the lower end of the connecting rod, and the lower end of the support column is provided with a plurality of support rods that rotate in a circular manner, and a control element is provided between the support column and the support rods.

[0007] Preferably, the control component includes a screw fixedly installed at the center of the bottom of the connecting rod, a nut threaded on the screw, a connecting ring fixedly provided on the upper surface of the nut, a drive ring rotatably provided on the outer wall of the connecting ring, and a plurality of drive rods rotatably provided on the outer wall of the drive ring, the ends of the drive rods being rotatably connected to the inner side of the support rod.

[0008] Preferably, a fixing frame is fixedly provided on the outer wall of the connecting rod, an insert rod is slidably provided inside the fixing frame, a pull block is fixedly provided on the upper outer wall of the insert rod, a spring is connected to the top of the insert rod, the upper end of the spring is connected to the top of the inner cavity of the fixing frame, and an insert plate is fixedly provided on the outer wall of the support column.

[0009] Preferably, the outer walls of the two pillars are fitted with rubber sleeves, which are used to connect the two adjacent pillars.

[0010] Preferably, a lead screw is fixedly provided at the center of the upper end of the connecting rod, and the lead screw is threadedly connected to the bottom of the fixed rod.

[0011] Compared with the prior art, the beneficial effects of this utility model are: In this invention, the design of a rotatable and deformable base rod assembly, combined with control components to adjust the extension angle of the support rod, effectively increases the ground contact area on soft ground such as snow and mud, preventing sinking and tipping over; by connecting the base rod assemblies on the same side, the landing bar becomes concave, improving the stability of landing on flat ground. Attached Figure Description

[0012] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the same-side landing bar connection structure of this utility model; Figure 2 This is a schematic diagram of the deformation structure of the landing gear boom of this utility model; Figure 3 This is a schematic diagram of the structure of the landing gear boom of this utility model; Figure 4 For the present utility model Figure 3 Enlarged structural diagram at point A in the middle; Figure 5 This is a schematic diagram of the bottom rod assembly structure of this utility model; Figure 6 This is a schematic diagram of the control component structure of this utility model.

[0013] The components in the diagram are numbered as follows: 1. UAV body; 11. Landing boom; 12. Fixed boom; 13. Connecting boom; 2. Base boom assembly; 21. Support column; 22. Support rod; 3. Control components; 31. Screw; 32. Nut; 33. Connecting ring; 34. Drive ring; 35. Drive rod; 4. Fixed frame; 41. Insert rod; 42. Pull block; 43. Spring; 44. Insert plate; 5. Rubber sleeve; 6. Lead screw. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0015] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0016] In the description of this specification, the references to terms such as "embodiment," "one embodiment," "some implementations," "exemplary," and "one implementation," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or implementation is included in at least one embodiment or implementation of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or implementation. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or implementations.

[0017] Example: This example provides a landing gear for a drone. See [link / reference] Figure 1-6 Specifically, it includes the drone body 1 and four landing bars 11 symmetrically installed on the lower surface of the drone body 1. The landing bars 11 include fixed bars 12 that are fixedly connected to the lower surface of the drone body 1. The lower end of the fixed bars 12 is movably connected to the connecting bars 13. The lower end of the connecting bars 13 is provided with a rotatable and deployable base bar assembly 2.

[0018] In this embodiment, the fixing rod 12 is vertically welded to the lower surface of the UAV body 1, serving as a rigid connection point between the landing gear and the fuselage. It is made of aluminum alloy to ensure torsional strength. The connecting rod 13 is threaded to the bottom of the fixing rod 12 via an internal lead screw 6, forming a quick-connect structure. The base rod assembly 2 is the core component directly in contact with the ground. Through deformation or connection with other base rod assemblies on the same side, it adapts to different ground landing scenarios.

[0019] In the specific implementation process, such as Figure 3 and Figure 5 As shown, the base rod assembly 2 includes a support column 21 rotatably connected to the lower end of the connecting rod 13. The lower end of the support column 21 is provided with a plurality of support rods 22 that rotate in a circular manner. A control element 3 is provided between the support column 21 and the support rods 22.

[0020] In this embodiment, the base rod assembly 2 is the core component that directly contacts the ground. It includes a support column 21 rotatably connected to the lower end of the connecting rod 13. Multiple (typically four or six) support rods 22, which can extend outwards or retract inwards, are circumferentially hinged to the bottom of the support column 21. A separate control unit 3 is provided to precisely control the angle of these support rods 22. The support column 21 serves as the mounting base and force transmission structure for the support rods 22. By changing the angle between the support rods 22 and the support column 21, the landing gear ground contact area is altered. When fully extended, the support rods 22 are perpendicular to the support column 21, increasing the contact area and preventing sagging. When extended at 45 degrees, the support rods 22 can be inserted into soft ground, ensuring the stability of the UAV body 1. By rotating the support column 21 to a perpendicular state with the connecting rod 13, the support rods 22 retract, connecting the two base rod assemblies 2 on the same side, forming concave landing bars 11 on both sides of the UAV body 1, improving stability when landing on flat ground.

[0021] In the specific implementation process, such as Figure 5 and Figure 6 As shown, the control component 3 includes a screw 31 fixedly installed at the center of the bottom of the connecting rod 13. A nut 32 is threaded on the screw 31. A connecting ring 33 is fixedly installed on the upper surface of the nut 32. A drive ring 34 is rotatably provided on the outer wall of the connecting ring 33. Multiple drive rods 35 are rotatably provided on the outer wall of the drive ring 34. The ends of the drive rods 35 are rotatably connected to the inner side of the support rod 22.

[0022] In this embodiment, the screw 31 is vertically fixed to the center of the bottom of the connecting rod 13, serving as the drive shaft of the entire control mechanism. The nut 32 is threadedly engaged with the screw 31, and when the screw 31 is rotated, the nut 32 can move up and down along the screw 31. The connecting ring 33 transmits the linear motion of the nut 32 to the drive ring 34, causing the drive ring 34 to move up and down synchronously. The drive rod 35 pushes and pulls the up and down movement of the drive ring 34 to form the unfolding and retracting action of the support rod 22. The nut 32 is hexagonal in shape, and a tool is needed to rotate the screw 31 during use.

[0023] In the specific implementation process, such as Figure 3 and Figure 4 As shown, a fixed frame 4 is fixedly provided on the outer wall of the connecting rod 13, and an insert rod 41 is slidably provided inside the fixed frame 4. A pull block 42 is fixedly provided on the upper outer wall of the insert rod 41, and a spring 43 is connected to the top of the insert rod 41. The upper end of the spring 43 is connected to the top of the inner cavity of the fixed frame 4. An insert plate 44 is fixedly provided on the outer wall of the support column 21.

[0024] In this embodiment, the insertion rod 41 is a locking pin, which is directly inserted into the hole of the insertion plate 44 to achieve mechanical locking. One end of the pull block 42 passes through the side of the fixed frame 4, facilitating manual operation of the insertion rod 41. The spring 43 provides automatic reset force, ensuring that the insertion rod 41 is in the normally locked position when not manually operated. The insertion plate 44 is fixed to the support column 21 and rotates with the support column 21. It has a locking hole corresponding to the angular position of the support rod 22. When the support column 21 and the connecting rod 13 are on the same horizontal line, the position of the support column 21 is fixed by the insertion rod 41 passing through the insertion plate 44.

[0025] In the specific implementation process, such as Figure 1 and Figure 2 As shown, rubber sleeves 5 are fitted on the outer walls of the two pillars 21, and the rubber sleeves 5 are used to connect the two adjacent pillars 21.

[0026] In this embodiment, the rubber sleeve 5 is a flexible connector. After the bottom rod assembly 2 is rotated inward by 90 degrees, the two bottom rod assemblies 2 on the same side are connected at their ends through the rubber sleeve 5, forming a concave-shaped lifting rod 11.

[0027] In the specific implementation process, such as Figure 2 and Figure 3 As shown, a lead screw 6 is fixedly installed at the center of the upper end of the connecting rod 13, and the lead screw 6 is threadedly connected to the bottom of the fixing rod 12. By rotating the connecting rod 13, the lead screw 6 can quickly enter or leave the groove at the bottom of the fixing rod 12, thus achieving quick installation and disassembly.

[0028] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A landing gear for an unmanned aerial vehicle (UAV), comprising a UAV body (1) and four landing bars (11) symmetrically mounted on the lower surface of the UAV body (1), characterized in that: The landing boom (11) includes a fixed rod (12) fixedly connected to the lower surface of the UAV body (1). A connecting rod (13) is movably connected to the lower end of the fixed rod (12). A rotatable and deployable base rod assembly (2) is provided at the lower end of the connecting rod (13).

2. The unmanned aerial vehicle landing gear according to claim 1, characterized in that: The base rod assembly (2) includes a support column (21) rotatably connected to the lower end of the connecting rod (13). The lower end of the support column (21) is provided with a plurality of support rods (22) rotating in a circular motion. A control element (3) is provided between the support column (21) and the support rods (22).

3. The unmanned aerial vehicle landing gear according to claim 2, characterized in that: The control component (3) includes a screw (31) fixedly installed at the center of the bottom of the connecting rod (13). A nut (32) is threaded on the screw (31). A connecting ring (33) is fixedly installed on the upper surface of the nut (32). A drive ring (34) is rotatably provided on the outer wall of the connecting ring (33). A plurality of drive rods (35) are rotatably provided on the outer wall of the drive ring (34). The end of the drive rod (35) is rotatably connected to the inner side of the support rod (22).

4. The unmanned aerial vehicle landing gear according to claim 2, characterized in that: The connecting rod (13) is fixedly provided with a fixed frame (4) on its outer wall. A plug rod (41) is slidably provided inside the fixed frame (4). A pull block (42) is fixedly provided on the upper outer wall of the plug rod (41). A spring (43) is connected to the top of the plug rod (41). The upper end of the spring (43) is connected to the top of the inner cavity of the fixed frame (4). A plug plate (44) is fixedly provided on the outer wall of the support column (21).

5. The unmanned aerial vehicle landing gear according to claim 2, characterized in that: The outer walls of the two pillars (21) are fitted with rubber sleeves (5), which are used to connect the two adjacent pillars (21).

6. The unmanned aerial vehicle landing gear according to claim 1, characterized in that: The upper center of the connecting rod (13) is fixedly provided with a lead screw (6), and the lead screw (6) is threadedly connected to the bottom of the fixed rod (12).

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