A landing gear specifically designed for small reconnaissance drones

Abstract

This utility model relates to the field of landing gear technology and discloses a special landing gear for a small reconnaissance drone. The landing gear includes an aircraft, a support frame fixedly mounted on the bottom of the aircraft, a camera device mounted on the support frame, and an adjustment mechanism on the aircraft. The adjustment mechanism includes a U-shaped bracket, and the U-shaped bracket is fixedly mounted on the bottom of the aircraft. To adapt to landing requirements in different terrains, this special landing gear for small reconnaissance drones, through the adjustment mechanism, achieves cushioning and shock absorption and stable support during landing by using a groove to limit the sliding of the movable column, a spring rod for elastic buffering, a limiting plate to restrict the movement range of the movable column, and a support plate for contact support with the ground. During takeoff and landing on muddy ground, a hydraulic rod drives the movable plate to extend a conical support rod, which inserts into the soil, thus providing stable support during landing.

Description

Technical Field

[0001] This utility model relates to the field of landing gear technology, specifically a landing gear for a small reconnaissance drone. Background Technology

[0002] In today's exploration field, small drones have become an indispensable tool due to their flexibility, convenience, and ability to operate in complex areas. From their initial simple aerial photography purpose, they have gradually developed to undertake a variety of high-precision and high-difficulty exploration tasks such as mineral resource exploration, geological disaster monitoring, and topographic mapping.

[0003] Early small reconnaissance drones were mostly simple in design. Some drones even lacked robust landing gear and could only take off and land in special locations or with the help of other auxiliary equipment. This greatly limited their range of use and flexibility. While traditional skid-type landing gear could meet some simple take-off and landing needs, it was difficult to provide stable support when facing complex terrain, such as rugged mountains or muddy wetlands, which could easily cause the drone to tip over or be damaged when landing.

[0004] In view of this, we propose a landing gear specifically for small reconnaissance drones. Utility Model Content

[0005] The purpose of this invention is to provide a landing gear specifically for small reconnaissance drones to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A landing gear specifically designed for a small reconnaissance drone includes an aircraft. A support frame is fixedly mounted on the bottom of the aircraft, and a camera device is mounted on the support frame. An adjustment mechanism is provided on the aircraft, and the adjustment mechanism includes:

[0008] A U-shaped bracket is fixedly installed at the bottom of the aircraft. A groove is opened at the bottom of the U-shaped bracket. One end of a spring rod is fixedly installed inside the groove. The groove is slidably installed on the outer wall of the movable column. A limit plate is fixedly installed at the top of the movable column. The other end of the spring rod is fixedly installed on the outer wall of the limit plate. The outer wall of the other end of the limit plate is attached to the inner wall of the U-shaped bracket. A support plate is fixedly installed at the bottom of the movable column.

[0009] A limiting groove is provided inside the side wall of the U-shaped bracket. The limiting groove is slidably installed inside the side wall of the movable plate. A hydraulic rod piston end is fixedly installed at the bottom end of the movable plate. The fixed end of the hydraulic rod is fixedly installed on the inner wall of the bottom end of the U-shaped bracket.

[0010] A tapered support rod is fixedly installed on the outer wall of the bottom end of the movable plate. A limit hole is opened at the bottom end of the U-shaped bracket, and the tapered support rod is slidably installed inside the limit hole.

[0011] In a further embodiment, the U-shaped bracket is provided in two sets.

[0012] In a further embodiment, the diameter of the limiting piece is larger than the diameter of the groove.

[0013] In a further embodiment, the movable plate is provided in two sets, and each set of the movable plate has two sets of tapered support rods.

[0014] In a further embodiment, an auxiliary mechanism is provided on the U-shaped bracket. The auxiliary mechanism includes an electric slide rail. The electric slide rail is fixedly installed on the inner wall of the bottom end of the U-shaped bracket. A slider is slidably installed inside the electric slide rail. Brush bristles are fixedly installed on the outer wall of the slider. The brush bristles are attached to the outer wall of the conical support rod. An air pump is fixedly installed on the inner wall of the bottom end of the U-shaped bracket. The air outlet of the air pump is fixedly installed at one end of a multi-head air pipe. A conical air nozzle is fixedly installed at the other end of the multi-head air pipe.

[0015] In a further embodiment, the electric slide rail is in a ring shape.

[0016] In a further embodiment, the conical air nozzle is oriented towards the contact surface between the brush bristles and the conical support rod, resulting in a better cleaning effect.

[0017] Compared with the prior art, this utility model provides a special landing gear for small reconnaissance drones, which has the following beneficial effects:

[0018] 1. The landing gear of this small reconnaissance drone is designed to adapt to landing requirements in different terrains. By setting up an adjustment mechanism, when taking off and landing on flat ground, the groove limits the sliding of the movable column, the spring rod provides elastic buffering, the limiting plate restricts the movement range of the movable column, and the support plate provides contact support with the ground, thereby achieving buffering and shock absorption and stable support during landing. When taking off and landing on muddy ground, the hydraulic rod drives the movable plate to extend the conical support rod, which inserts into the soil, thereby providing stable support during landing.

[0019] 2. The landing gear for this small reconnaissance drone is equipped with an auxiliary mechanism to ensure the cleanliness and normal use of the conical support rod. This mechanism consists of an electric slide rail, a slider, brush bristles, an air pump, a multi-head air pipe, and a conical air nozzle. The electric slide rail drives the slider and brush bristles to perform a circular sliding cleaning of the conical support rod. The air pump blows air through the multi-head air pipe and the conical air nozzle onto the contact surface between the brush bristles and the conical support rod, thereby achieving the purpose of cleaning the dust and debris attached to the conical support rod. Attached Figure Description

[0020] Figure 1This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a schematic cross-sectional view of the U-shaped support structure of this utility model;

[0022] Figure 3 This utility model Figure 2 Enlarged structural diagram of region A in the middle;

[0023] Figure 4 This utility model Figure 2 Enlarged structural diagram of region B in the middle;

[0024] Figure 5 This is a cross-sectional schematic diagram of the U-shaped support structure from another perspective of this utility model;

[0025] Figure 6 This utility model Figure 5 A magnified structural diagram of region C in the middle.

[0026] Explanation of icon numbers:

[0027] 1. Aircraft; 2. Support frame; 3. Camera equipment;

[0028] 4. Adjustment mechanism; 41. U-shaped bracket; 42. Groove; 43. Spring rod; 44. Movable column; 45. Limiting plate; 46. Support plate; 47. Limiting groove; 48. Movable plate; 49. Hydraulic rod; 410. Conical support rod; 411. Limiting hole;

[0029] 5. Auxiliary mechanisms; 51. Electric slide rail; 52. Slider; 53. Brush bristles; 54. Air pump; 55. Multi-head air hose; 56. Conical air nozzle. Detailed Implementation

[0030] 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 protection scope of the present utility model.

[0031] In this application, the term "above" indicates the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. It is primarily used to better describe this application and its embodiments, and is not intended to limit the indicated device, element, or component to having a specific orientation, or to construct and operate in a specific orientation. Furthermore, the term "above" may also be used in certain circumstances to indicate a dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application according to the specific circumstances.

[0032] Please see Figures 1-6 This utility model provides a technical solution:

[0033] A landing gear for a small reconnaissance drone includes an aircraft 1, a support frame 2 fixedly installed at the bottom of the aircraft 1, and a camera device 3 installed on the support frame 2.

[0034] In one embodiment of this utility model, an adjustment mechanism 4 is provided on the aircraft 1. The adjustment mechanism 4 includes a U-shaped bracket 41. The U-shaped bracket 41 is fixedly installed at the bottom of the aircraft 1. Two sets of U-shaped brackets 41 are provided. A groove 42 is opened at the bottom of the U-shaped bracket 41. One end of a spring rod 43 is fixedly installed inside the groove 42. The groove 42 is slidably installed on the outer wall of a movable column 44. A limiting piece 45 is fixedly installed at the top of the movable column 44. The other end of the spring rod 43 is fixedly installed on the outer wall of the limiting piece 45. The outer wall of the other end of the limiting piece 45 is attached to the inner wall of the U-shaped bracket 41. The cross-sectional diameter of the limiting piece 45 is larger than that of the groove 42. The movable column 44 has a diameter of 44. A support plate 46 is fixedly installed at the bottom of the movable column 44. A limit groove 47 is opened inside the side wall of the U-shaped bracket 41. The limit groove 47 is slidably installed inside the side wall of the movable plate 48. A piston end of a hydraulic rod 49 is fixedly installed at the bottom of the movable plate 48. The fixed end of the hydraulic rod 49 is fixedly installed inside the bottom inner wall of the U-shaped bracket 41. A tapered support rod 410 is fixedly installed on the bottom outer wall of the movable plate 48. The movable plate 48 is provided with two sets of tapered support rods 410. Two sets of tapered support rods 410 are provided on each set of movable plate 48. A limit hole 411 is opened at the bottom of the U-shaped bracket 41. The tapered support rod 410 is slidably installed inside the limit hole 411.

[0035] In this embodiment, when the drone is preparing to land on flat ground, the aircraft 1 begins to descend, and the landing gear approaches the ground. As the aircraft 1 continues to descend, the ground exerts an upward reaction force on the support plate 46. This force is transmitted through the movable column 44 to the limiting plate 45 and the spring rod 43. The spring rod 43 is an elastic component that undergoes elastic deformation when subjected to external force. It absorbs and buffers the impact force generated during landing through its own deformation, thereby reducing the vibration experienced by the aircraft 1 and protecting the precision equipment inside the aircraft 1. The limiting plate 45 is fixedly installed on the top of the movable column 44, and its cross-sectional diameter is larger than that of the groove 42. This design allows the limiting plate 45 to effectively restrict... The movable column 44's range of motion is limited. When the movable column 44 slides to its limit position within the groove 42, the limiting plate 45 will engage with the inner wall of the U-shaped bracket 41, preventing the movable column 44 from moving further upward and thus preventing it from detaching from the groove 42. This ensures the integrity and safety of the entire landing gear structure. The support plate 46 is in direct contact with the ground. Its function is to evenly distribute the weight of the aircraft 1 onto the ground, increasing the contact area with the ground and reducing the pressure per unit area, thereby improving stability during landing. Throughout the landing process, the groove 42 limits the sliding of the movable column 44, the spring rod 43 provides elastic cushioning, the limiting plate 45 restricts the range of motion of the movable column 44, and the support plate 46 maintains contact with the ground. The contact supports work together to achieve the functions of buffering and shock absorption and stabilizing support when the UAV lands on flat ground. When the UAV needs to land on muddy ground, after the aircraft 1 descends to a certain altitude, the hydraulic rod 49 starts to work. The fixed end of the hydraulic rod 49 is firmly installed on the inner wall of the bottom end of the U-shaped bracket 41, and the piston end is connected to the movable plate 48. After the hydraulic rod 49 is activated, its piston end extends outward, pushing the movable plate 48 to slide in the limiting groove 47. The limiting groove 47 provides a guiding function for the movable plate 48, so that it can only move along a specific trajectory, ensuring that the conical support rod 410 can be accurately extended and retracted. The movement of the movable plate 48 drives the conical support rod 410, which is fixedly installed on the outer wall of its bottom end. The U-shaped bracket 41 has a limiting hole 411 at its bottom. The conical support rod 410 slides outward along the limiting hole 411 under the push of the movable plate 48. As the drone continues to descend, the conical support rod 410 first contacts the mud surface. Because the conical support rod 410 is conical, its tip can be more easily inserted into the mud. With the weight of the drone, the conical support rod 410 gradually penetrates into the mud. It uses the friction and support force of the mud to provide stable support for the drone when landing on the mud. In this way, even in soft mud, the drone can land safely and stably, avoiding problems such as sinking or tipping over due to soft ground.

[0036] In one embodiment of this utility model, an auxiliary mechanism 5 is provided on the U-shaped bracket 41. The auxiliary mechanism 5 includes an electric slide rail 51, which is in a ring shape. The electric slide rail 51 is fixedly installed on the inner wall of the bottom end of the U-shaped bracket 41. A slider 52 is slidably installed inside the electric slide rail 51. Brush bristles 53 are fixedly installed on the outer wall of the slider 52. The brush bristles 53 are attached to the outer wall of the conical support rod 410. An air pump 54 is fixedly installed on the inner wall of the bottom end of the U-shaped bracket 41. The air outlet of the air pump 54 is fixedly installed on one end of a multi-head air pipe 55. A conical air nozzle 56 is fixedly installed on the other end of the multi-head air pipe 55. The conical air nozzle 56 faces the contact surface between the brush bristles 53 and the conical support rod 410.

[0037] In this embodiment, after the UAV completes its reconnaissance mission in muddy or other complex environments, to ensure the cleanliness and normal use of the tapered support rod 410, the auxiliary mechanism 5 needs to be activated. Upon receiving the start signal from the PLC controller, the electric slide rail 51 begins operation. The electric slide rail 51 is in a ring shape and is fixedly installed on the inner wall of the bottom end of the U-shaped bracket 41. Its internal drive device is activated, causing the slider 52 to slide in a ring within the electric slide rail 51. Brush bristles 53 are fixedly installed on the outer wall of the slider 52, so the brush bristles 53 will move with the... The brush 53 moves synchronously with the slider 52. Because the brush bristles 53 are in contact with the outer wall of the conical support rod 410, during its circular sliding motion, the brush bristles 53 effectively remove dirt, dust, debris, and other contaminants adhering to the surface of the conical support rod 410. This circular sliding cleaning method ensures a comprehensive and uniform cleaning of the entire circumference of the conical support rod 410, leaving no dead corners. While the electric slide rail 51 drives the brush bristles 53 to clean the conical support rod 410, the air pump 54 is also activated under the control of the PLC controller. The air pump 54 is fixedly installed on the inner wall of the bottom end of the U-shaped bracket 41. Its air outlet is connected to one end of the multi-head air pipe 55. After the air pump 54 is started, it draws in and compresses outside air, and then delivers the compressed air to multiple conical air nozzles 56 through the multi-head air pipe 55. The design of the multi-head air pipe 55 can evenly distribute the compressed air generated by the air pump 54 to each conical air nozzle 56, ensuring that each conical air nozzle 56 can provide a stable and sufficient airflow. The conical air nozzles 56 face the contact surface between the bristles 53 and the conical support rod 410, and the air flows from the conical air nozzles 56. The high-speed airflow ejected from nozzle 56 acts directly on the contact surface. This high-speed airflow can blow away the dust, debris, and other contaminants brushed off by bristles 53 from the surface of the conical support rod 410, preventing them from re-adhering. Through the combined mechanical cleaning of bristles 53 and the auxiliary cleaning of airflow from conical nozzle 56, various contaminants attached to the conical support rod 410 can be removed more thoroughly, ensuring the cleanliness and normal use of the conical support rod 410, extending its service life, and ensuring that the landing gear of the UAV can work normally in subsequent reconnaissance missions.

[0038] All electrical components mentioned in this application are electrically connected to the PLC controller and 220V AC mains power. The PLC controller is a conventional and known device capable of controlling the hydraulic rod 49, electric slide rail 51, and air pump 54. All standard parts used in this application can be purchased from the market. The specific connection methods of each part are all conventional methods such as riveting and welding, which are mature in the prior art. The standard parts are all conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art. It should be noted that the above electrical components are all prior art products. Those skilled in the art should select, install, and complete the circuit debugging work according to the needs of use to ensure that all electrical components can work normally. The components are all general standard parts or components known to those skilled in the art. Their structure and principle can be learned by those skilled in the art through technical manuals or conventional experimental methods. No specific restrictions are made here. The supporting structures of the hydraulic drive structure mentioned in this application, such as hydraulic tanks and hydraulic pumps, are existing equipment and will not be described in detail here.

[0039] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A landing gear for a small reconnaissance drone, comprising an aircraft (1), wherein a support frame (2) is fixedly mounted on the bottom of the aircraft (1), and a camera device (3) is mounted on the support frame (2), characterized in that: The aircraft (1) is provided with an adjustment mechanism (4), the adjustment mechanism (4) comprising: U-shaped bracket (41), the aircraft (1) is fixedly installed with a U-shaped bracket (41), the bottom end of the U-shaped bracket (41) is provided with a groove (42), one end of the spring rod (43) is fixedly installed inside the groove (42), the groove (42) is slidably installed on the outer wall of the movable column (44), a limiting piece (45) is fixedly installed at the top of the movable column (44), the other end of the spring rod (43) is fixedly installed on the outer wall of the limiting piece (45), the outer wall of the other end of the limiting piece (45) is attached to the inner wall of the U-shaped bracket (41), and a support plate (46) is fixedly installed at the bottom end of the movable column (44). Limiting groove (47): A limiting groove (47) is opened inside the side wall of the U-shaped bracket (41). The limiting groove (47) is slidably installed inside the side wall of the movable plate (48). The bottom end of the movable plate (48) is fixedly installed with the piston end of the hydraulic rod (49). The fixed end of the hydraulic rod (49) is fixedly installed on the inner wall of the bottom end of the U-shaped bracket (41). A tapered support rod (410) is fixedly installed on the outer wall of the bottom end of the movable plate (48). A limit hole (411) is opened at the bottom end of the U-shaped bracket (41), and the tapered support rod (410) is slidably installed inside the limit hole (411).

2. The small survey unmanned aerial vehicle dedicated landing gear according to claim 1, characterized in that: The U-shaped bracket (41) is provided in two sets.

3. The small survey unmanned aerial vehicle dedicated landing gear according to claim 1, characterized in that: The diameter of the limiting piece (45) is greater than the diameter of the groove (42).

4. The small survey unmanned aerial vehicle dedicated landing gear according to claim 1, characterized in that: The movable plate (48) is provided with two sets, and the tapered support rods (410) on each movable plate (48) are provided with two sets.

5. The small survey unmanned aerial vehicle dedicated landing gear according to claim 1, characterized in that: An auxiliary mechanism (5) is provided on the U-shaped bracket (41). The auxiliary mechanism (5) includes an electric slide rail (51). The electric slide rail (51) is fixedly installed on the inner wall of the bottom end of the U-shaped bracket (41). A slider (52) is slidably installed inside the electric slide rail (51). A brush (53) is fixedly installed on the outer wall of the slider (52). The brush (53) is attached to the outer wall of the conical support rod (410). An air pump (54) is fixedly installed on the inner wall of the bottom end of the U-shaped bracket (41). The air outlet of the air pump (54) is fixedly installed at one end of a multi-head air pipe (55). A conical air nozzle (56) is fixedly installed at the other end of the multi-head air pipe (55).

6. The small survey unmanned aerial vehicle dedicated landing gear according to claim 5, characterized in that: The electric slide rail (51) is in a ring shape.

7. The small survey unmanned aerial vehicle dedicated landing gear according to claim 5, characterized in that: The conical nozzle (56) faces the contact surface between the bristles (53) and the conical support rod (410).

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