Undercarriage for unmanned aerial vehicle
By setting up sensors and nitrogen airbag buffer systems on the drone landing gear, the problems of damage to the drone fall and difficult to replace the mounted objects are solved, and the durability and rapid replacement efficiency of the drone are achieved.
Patent Information
- Application Number
- CN202422625553.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-30
- Publication Date
- 2025-08-05
- Estimated Expiration
- 2034-10-30
AI Technical Summary
The existing drone landing gear lacks protective measures, which leads to damage when the body falls, and it is difficult to quickly replace the mounted object, especially in water, which is difficult to retrieve.
A drone landing gear is designed, equipped with an inductor to detect balance and ignite a flammable agent to generate high-pressure nitrogen to allow the airbag to expand and provide buffering, buoyancy prevents sinking into the water, and quickly disassemble and install the mounting object through the jagged block and chute structure.
Effectively protect the drone body, prevent damage, reduce the difficulty of sinking into the bottom of the water, simplify the process of replacing the load, and improve the replacement efficiency.
Smart Images
Figure CN223187707U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of unmanned aerial vehicle equipment, in particular to a landing gear for a unmanned aerial vehicle. Background Art
[0002] A drone is an unmanned aircraft controlled by a radio remote control device and its own program control device. It can collect high-resolution images, making up for the problems of satellite remote sensing being unable to obtain images due to cloud cover, as well as the long revisit cycle of satellite remote sensing and the lack of timely emergency response. Compared with manned aircraft, drones have a wider range of applications, especially in the civilian sector. Civilian drones are divided into five levels: micro, light, small, medium and large, and are widely used in aerial photography, agriculture, express transportation, surveying and mapping, disaster relief and other fields.
[0003] In the prior art, drone landing gear does not have protective measures. During normal flight, the drone body may be affected by signal interference and fall, causing damage to the surface of the drone body and even damage to internal electronic components. When the drone falls on the water surface, the body will sink to the bottom under the influence of gravity, making it more difficult for the operator to retrieve the equipment. In addition, drone mounts are usually fixed with screws, which is not conducive to quick replacement. Therefore, in order to solve the above problems, the utility model proposes a landing gear for drones. Utility Model Content
[0004] In response to the shortcomings of the existing technology, the utility model provides a landing gear for a drone. By setting up a sensor to detect balance, high-pressure nitrogen is used to deploy an airbag when the body falls, providing a cushion for the drone to avoid damage to the body. The airbag provides buoyancy to prevent the drone from sinking to the bottom of the water. The connecting shaft position is fixed by a spring through a clamping block and a slide groove, which facilitates the operator to disassemble and install the mount, thereby improving replacement efficiency.
[0005] The utility model provides the following technical solutions: a landing gear for an unmanned aerial vehicle, comprising a main body, support rods evenly fixedly installed on the bottom of the main body, the number of the support rods being four, a landing rod fixedly installed between the bottom ends of the front and rear support rods, a groove being provided at the bottom of the landing rod, a sensor being fixedly sleeved at the bottom end of the support rod and located directly above the landing rod, a flammable agent being fixedly installed inside the support rod and located directly below the sensor, a nitrogen generator being fixedly installed on the left and right sides of the flammable agent, a pipe being provided on the upper part of the groove, the number of the pipes being two and located directly below the nitrogen generator, an airbag being fixedly installed on the top of the inner cavity of the groove, and the airbag being fixedly connected to the pipe.
[0006] Preferably, a quick-release seat is fixedly installed on the bottom of the main body, and sliding grooves are evenly opened in the inner cavity of the quick-release seat, and the number of the sliding grooves is four.
[0007] Preferably, a spring is fixedly mounted on the top of the inner cavity of the quick-release seat, a movable plate is movably connected in the inner cavity of the quick-release seat, and the bottom end of the spring is fixedly mounted on the upper portion of the movable plate.
[0008] Preferably, a mount is provided at the bottom of the quick-release seat, a connecting shaft is fixedly installed on the upper part of the mount, and clamping blocks are evenly fixedly connected to the side surface of the upper end of the connecting shaft. There are four clamping blocks and they are respectively clamped with the slide grooves.
[0009] Preferably, connecting arms are evenly fixedly installed on the side of the main body, and the number of the connecting arms is four. A motor is fixedly installed on one end of the connecting arm away from the main body, and a fan blade is fixedly sleeved on the top end of the motor output shaft.
[0010] Compared with the prior art, the present invention has the following beneficial effects:
[0011] 1. By setting up sensors to detect the status of the drone, when the drone accidentally falls vertically, the sensor emits an electric spark to ignite the flammable agent, causing the nitrogen generator to burn and produce high-pressure nitrogen. The high-pressure nitrogen inflates the airbag and deploys it at the bottom of the landing gear, providing a buffer for the drone's fall, avoiding major damage to the drone body when it falls, and providing protection for the internal electronic components of the body, which is beneficial to enhancing the durability of the drone. When the drone falls on the water surface, the airbag filled with gas can provide buoyancy to prevent the drone from sinking to the bottom of the water, making it easier to retrieve the equipment and reducing the difficulty for the operator to retrieve the drone, thereby avoiding major property losses.
[0012] 2. By setting a clamping block and a slide groove, and by rotating the quick-release seat and the connecting shaft, the position of the connecting shaft is locked by the movable plate under the action of the spring elastic potential energy, so that the connecting shaft can be fixed in the quick-release seat, thereby realizing the rapid installation of the mount. When a different mount needs to be replaced, the mount can be removed by pressing the mount upward again and rotating it, realizing the rapid disassembly of the mount, allowing the operator to replace the drone mount with one hand, reducing the labor intensity of the operator when installing and disassembling the mount, reducing the time required to replace the mount, and improving the replacement efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 This is a schematic diagram of the exterior structure of the utility model;
[0014] Figure 2 This is a schematic diagram of the cross-sectional structure of the landing gear of the present utility model;
[0015] Figure 3 This is a schematic diagram of the inflated cross-sectional structure of the landing gear airbag of the utility model;
[0016] Figure 4 This is a schematic diagram of the quick-disassembly structure of the utility model;
[0017] Figure 5 This is a schematic diagram of the internal slide groove of the quick-release seat structure of the utility model.
[0018] In the figure: 1. Main body; 2. Support rod; 3. Lifting rod; 4. Groove; 5. Sensor; 6. Flammable agent; 7. Nitrogen generator; 8. Pipeline; 9. Airbag; 10. Quick release seat; 11. Slide; 12. Spring; 13. Moving plate; 14. Mounting object; 15. Connecting shaft; 16. Clamping block; 17. Connecting arm; 18. Motor; 19. Fan blade. 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] See also Figure 1-Figure 5 A landing gear for a drone includes a main body 1. Support rods 2 are evenly fixedly installed at the bottom of the main body 1. There are four support rods 2. A landing rod 3 is fixedly installed between the bottom ends of the front and rear support rods 2. A groove 4 is provided at the bottom of the landing rod 3. A sensor 5 is fixedly sleeved at the bottom end of the support rod 2 and directly above the landing rod 3. A flammable agent 6 is fixedly installed inside the support rod 2 and directly below the sensor 5. Nitrogen generators 7 are fixedly installed on the left and right sides of the flammable agent 6. A pipe 8 is provided on the upper part of the groove 4. There are two pipes 8 and they are respectively located directly below the nitrogen generator 7. An airbag 9 is fixedly installed on the top of the inner cavity of the groove 4. The airbag 9 is fixedly connected to the pipe 8. When the sensor 5 detects that there is no one, the airbag 9 is fixedly connected to the pipe 8. When the drone unexpectedly loses balance, the sensor 5 emits an electric spark to ignite the inflammable agent 6, which drives the nitrogen generator 7 to burn and produce high-pressure nitrogen. The high-pressure nitrogen enters the inner cavity of the airbag 9 through the pipe 8, causing the airbag 9 to expand and fully deploy at the bottom of the landing rod 3. The airbag 9 filled with nitrogen provides a buffer for the drone's fall, avoiding major damage to the drone body when it falls, providing protection for the internal electronic components of the drone, and helping to enhance the durability of the drone. In addition, when the drone falls on the water, the airbag 9 filled with gas can provide buoyancy to prevent the drone from sinking to the bottom of the water, making it easier to retrieve the equipment and reducing the difficulty for the operator to retrieve the drone, thereby avoiding major property losses.
[0021] A quick-release seat 10 is fixedly installed at the bottom of the main body 1, and a slide groove 11 is evenly opened in the inner cavity of the quick-release seat 10, and there are four slide grooves 11. A spring 12 is fixedly installed on the top of the inner cavity of the quick-release seat 10, and a movable plate 13 is movably connected in the inner cavity of the quick-release seat 10. The bottom end of the spring 12 is fixedly installed on the upper part of the movable plate 13. A mount 14 is provided at the bottom of the quick-release seat 10, and a connecting shaft 15 is fixedly installed on the upper part of the mount 14. The upper end side of the connecting shaft 15 is evenly fixedly connected with a clamping block 16, and the number of the clamping blocks 16 is four and they are respectively clamped with the slide groove 11. Connecting arms 17 are evenly fixed on the side of the main body 1, and there are four connecting arms 17. A motor 18 is fixedly installed on the end of the connecting arm 17 away from the main body 1, and a fan blade 19 is fixedly sleeved on the top of the output shaft of the motor 18. First, the clamping block 16 is aligned with the right end of the slide groove 11. At this time, the mount 14 is moved upward so that the connecting shaft 15 enters the inner cavity of the quick-release seat 10. When the cam 15 is released, the spring 12 pushes the connecting shaft 15 downwards, and the connecting shaft 15 is locked with the left end of the slide groove 11, so that the connecting shaft 15 can be fixed in the quick-release seat 10. When a different mount 14 needs to be replaced, the mount 14 can be removed by pressing the mount 14 upward again and rotating it clockwise, thereby realizing quick disassembly and installation of the mount 14. The operator can replace the drone mount with one hand, reducing the labor intensity of the operator when installing and disassembling the mount, reducing the time required for replacing the mount, and improving replacement efficiency.
[0022] Working principle: When the sensor 5 detects that the drone has accidentally lost its balance, the sensor 5 emits an electric spark to ignite the inflammable agent 6, and the inflammable agent 6 drives the nitrogen generator 7 to burn and produce high-pressure nitrogen. The high-pressure nitrogen enters the inner cavity of the airbag 9 through the pipe 8, causing the airbag 9 to expand and fully unfold at the bottom of the landing rod 3. The airbag 9 filled with nitrogen can provide a buffer for the drone and also provide buoyancy for the drone to prevent it from sinking to the bottom of the water when it falls on the water surface. When it is necessary to replace a different mount 14, first align the clamping block 16 with the right end of the slide 11, and then move the mount 14 upward so that the connecting shaft 15 enters the inner cavity of the quick-release seat 10. The connecting shaft 15 contacts the movable The movable plate 13 causes the movable plate 13 to rise, and the movable plate 13 drives the spring 12 to compress and produce elastic potential energy. When the clamping block 16 slides to the top of the slide groove 11, the mount 14 is rotated counterclockwise, and the mount 14 drives the connecting shaft 15 to rotate so that the clamping block 16 moves to the left end of the slide groove 11. At this time, the mount 14 is released, and under the action of the elastic potential energy of the spring 12, the movable plate 13 pushes the connecting shaft 15 to move downward, so that the clamping block 16 is clamped with the left end of the slide groove 11, and the connecting shaft 15 is fixed in the quick-release seat 10. The mount 14 can be removed by pressing the mount 14 upward again and rotating it clockwise, thereby realizing quick disassembly and installation of the mount 14.
Claims
1. A landing gear for an unmanned aerial vehicle, comprising a main body (1), characterized in that: The bottom of the main body (1) is evenly fixed with support rods (2), and the number of the support rods (2) is four. A lifting rod (3) is fixedly installed between the bottom ends of the front and rear support rods (2). The bottom of the lifting rod (3) is provided with a groove (4). The bottom end of the support rod (2) and located directly above the lifting rod (3) is fixedly sleeved with a sensor (5). The inside of the support rod (2) and located directly below the sensor (5) is fixedly installed with a flammable agent (6). Nitrogen generators (7) are fixedly installed on the left and right sides of the flammable agent (6). A pipe (8) is provided on the top of the groove (4). The number of the pipes (8) is two and they are respectively located directly below the nitrogen generator (7). An air bag (9) is fixedly installed on the top of the inner cavity of the groove (4). The air bag (9) is fixedly connected to the pipe (8).
2. The UAV landing gear according to claim 1, characterized in that: A quick-release seat (10) is fixedly installed at the bottom of the main body (1), and sliding grooves (11) are evenly opened in the inner cavity of the quick-release seat (10), and the number of the sliding grooves (11) is four.
3. The UAV landing gear according to claim 2, characterized in that: A spring (12) is fixedly installed on the top of the inner cavity of the quick-release seat (10), a movable plate (13) is movably connected in the inner cavity of the quick-release seat (10), and the bottom end of the spring (12) is fixedly installed on the upper part of the movable plate (13).
4. The UAV landing gear according to claim 2, characterized in that: A mounting object (14) is provided at the bottom of the quick-release seat (10), a connecting shaft (15) is fixedly installed on the upper part of the mounting object (14), and a clamping block (16) is evenly fixedly connected to the side surface of the upper end of the connecting shaft (15), and the number of the clamping blocks (16) is four and they are respectively clamped with the slide groove (11).
5. The landing gear for a UAV according to claim 1, characterized in that: Connecting arms (17) are evenly fixedly installed on the side of the main body (1), and the number of the connecting arms (17) is four. A motor (18) is fixedly installed on one end of the connecting arm (17) away from the main body (1), and a fan blade (19) is fixedly sleeved on the top end of the output shaft of the motor (18).