Unmanned aerial vehicle landing gear

Abstract

The utility model relates to the field of unmanned aerial vehicle landing gear devices, in particular to an unmanned aerial vehicle landing gear which comprises a vehicle body, vehicle arms used for fixing are fixedly connected to the periphery of the vehicle body, a two-way motor used for driving is arranged on the side, away from the vehicle body, of each vehicle arm, and the driving end of each two-way motor is connected with a propeller. The lower ends of the machine arms are fixedly connected with air pressure valves for increasing air pressure, the other output end of the two-way motor is connected with a reciprocating lead screw, a piston is arranged on the outer side of the reciprocating lead screw, the end, away from the two-way motor, of the reciprocating lead screw is fixedly connected with a connecting rod, and the lower ends of the air pressure valves are provided with valves for sealing. According to the clamping device for machining the photovoltaic panel driver, the movable frame is opened before the unmanned aerial vehicle falls to the ground, buffering is provided for the unmanned aerial vehicle, internal components are protected from being damaged due to strong vibration, and the clamping device for machining the photovoltaic panel driver is achieved.

Description

Technical Field

[0001] The utility model relates to the field of unmanned aerial vehicle (UAV) landing gear devices, in particular to a UAV landing gear device. Background Art

[0002] The drone landing device ensures the stability of the drone landing on the buffer plate and avoids unstable rollover by designing components such as the support base, buffer plate, electromagnet, bracket, magnetic layer and buffer assembly. It uses elastic buffer parts to buffer the slider and sleeve, and then buffer the buffer plate and drone, thereby protecting the drone.

[0003] When traditional drones are taking off or landing, they may collide with the ground, which may damage the drone's internal electronic components and make the device unusable.

[0004] In view of this, research and improvement are carried out on the existing problems, and a UAV landing device is provided, which has a reasonable structural design, high stability, and takes into account all aspects of application. The purpose is to achieve the purpose of solving problems and improving practical value through this technology. Utility Model Content

[0005] The utility model opens the movable frame before the drone lands to provide a buffer for the drone, protects internal components from damage caused by strong vibration, and realizes a clamping device for photovoltaic panel driver processing.

[0006] The cam is provided with a plurality of connecting rods, and a plurality of connecting rods are connected to the cam, and a plurality of connecting rods are connected to the cam.

[0007] Preferably, the arms are fixedly connected to four groups around the body, the bidirectional motors are fixedly connected to the upper ends of the arms, and each group of arms is provided with a propeller driven by the bidirectional motor.

[0008] Preferably: the air pressure valve is fixedly connected to the lower end of the machine arm, and its center is aligned with the center of the bidirectional motor. The reciprocating screw is movably connected to the output end of the bidirectional motor and passes through the machine arm to be connected to the bottom of the upper bidirectional motor.

[0009] Preferably, a bearing seat is sleeved inside the piston, the reciprocating screw and the bearing seat are connected via a ball nut pair, the connecting rod is fixedly connected to the lower end of the reciprocating screw, and the center thereof is aligned with the center of the reciprocating screw, and a valve is movably connected to the outside of the connecting rod.

[0010] Preferably: the hose passes through the inside of the air pressure valve and is connected to the spring telescopic rod, and each group of air pressure valves is connected to the spring telescopic rod through the hose, the movable frame is movably connected to the lower end of the body, and there are two groups of them, and the connection of the movable frame matches the internal size of the slide.

[0011] Preferably, the inner diameter of the push plate matches the outer diameter of the connection portion of the movable frame, the spring telescopic rod is fixedly connected to the rear end of the push plate, and the push plate pushes the movable frame through the spring telescopic rod.

[0012] Preferably, the connecting buckle is movably connected at the intersection of the two sets of movable frames and passes through the two sets of movable frames, and the roller is movably connected to the lower end of each set of movable frames.

[0013] The utility model has the following beneficial effects: the installation of multiple sets of bidirectional motors and propellers increases the stability and safety of the equipment during flight; the air pressure valve enables the equipment to continuously generate air pressure while flying; a bearing seat is sleeved inside the piston, so that the up and down movement of the piston is smoother when the reciprocating screw rotates, reducing internal wear and tear and extending the service life of the equipment; the valve is convenient for blocking the lower end during descent, thereby changing the direction of the internal air pressure; the movable frame is opened before the drone lands to provide a buffer for it and protect internal components from damage caused by strong vibration; when the movable frame is stored, the rollers are in contact with the ground when the movable frame contacts the ground, reducing the wear between the movable frame and the ground and extending the service life of the movable frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is the overall appearance of a UAV landing device proposed in the utility model;

[0015] Figure 2 This is a side view of a UAV landing device proposed in the utility model;

[0016] Figure 3 This is a cross-sectional view of a UAV landing device proposed in the present invention;

[0017] Figure 4 This is a cross-sectional view of a UAV landing device proposed in the present invention.

[0018] Legend:

[0019] 1. Machine body; 2. Machine arm; 3. Bidirectional motor; 4. Propeller; 5. Air pressure valve; 6. Reciprocating screw; 7. Piston; 8. Connecting rod; 9. Valve; 10. Hose; 11. Movable frame; 12. Slide; 13. Push plate; 14. Spring telescopic rod; 15. Connecting buckle; 16. Roller. DETAILED DESCRIPTION

[0020] 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.

[0021] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the devices or components referred to must have a specific direction, be constructed and operate in a specific direction. Therefore, they should not be understood as limiting the present invention. The terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance. In addition, unless otherwise expressly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, they can be fixed connections, detachable connections, or integral connections; they can be mechanical connections or electrical connections; they can be direct connections, indirect connections through an intermediate medium, or internal connections between two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0022] Reference Figure 1-4The utility model provides an embodiment of a drone landing device, including a body 1, with a machine arm 2 fixedly connected to the body 1 for fixing, a bidirectional motor 3 for driving is provided on the side of the machine arm 2 away from the body 1, and a propeller 4 is connected to the driving end of the bidirectional motor 3, and a pressure valve 5 for increasing air pressure is fixedly connected to the lower end of the machine arm 2. The other output end of the bidirectional motor 3 is connected to a reciprocating screw rod 6, a piston 7 is provided on the outer side of the reciprocating screw rod 6, and a connecting rod 8 is fixedly connected to the end of the reciprocating screw rod 6 away from the bidirectional motor 3. A valve 9 for sealing is provided at the lower end of the pressure valve 5, and a hose 10 for transmission is fixedly connected to one side of the pressure valve 5. A movable frame 11 for shock absorption is provided at the lower end of the machine body 1, a slide groove 12 for guiding is provided at the connection of the movable frame 11, and a push plate 13 for pushing is provided on one side of the slide groove 12. A spring telescopic rod 14 for controlling telescopic movement is connected to the back of the push plate 13. A connecting buckle 15 is movably connected to the connection of the movable frame 11, and a roller 16 for lifting stability is movably connected to the lower end of the movable frame 11.

[0023] In an optional embodiment: four groups of arms 2 are fixedly connected around the body 1 to facilitate the installation of multiple groups of propellers 4, and bidirectional motors 3 are fixedly connected to the upper ends of the arms 2, and are provided at the upper ends of each group of arms 2. The propellers 4 are driven by the bidirectional motors 3. The installation of multiple groups of bidirectional motors 3 and propellers 4 increases the stability and safety of the equipment during flight.

[0024] In an optional embodiment: the air pressure valve 5 is fixedly connected to the lower end of the arm 2, and its center is aligned with the center of the bidirectional motor 3, so that it continuously generates air pressure during flight; the reciprocating screw 6 is movably connected to the output end of the bidirectional motor 3, and passes through the arm 2 and is connected to the bottom of the upper bidirectional motor 3, and is driven to rotate by the rotation of the bidirectional motor 3, thereby driving the piston 7 to reciprocate.

[0025] In an optional embodiment: a bearing seat is sleeved inside the piston 7, and its reciprocating screw 6 is connected to the bearing seat by a ball nut pair, so that the up and down movement of the piston 7 is smoother when the reciprocating screw 6 rotates, reducing internal wear and extending the service life of the equipment. The connecting rod 8 is fixedly connected to the lower end of the reciprocating screw 6, and the center is aligned with the center of the reciprocating screw 6, ensuring that the valve 9 can accurately block the empty hole at the lower end each time it rises. The valve 9 is movably connected to the outside of the connecting rod 8, which is convenient for blocking the lower end when descending, thereby changing the direction of the internal air pressure.

[0026] In an optional embodiment: the hose 10 passes through the interior of the air pressure valve 5 and is connected to the spring telescopic rod 14, and each group of air pressure valves 5 is connected to the spring telescopic rod 14 through the hose 10, and the movable frame 11 is movably connected to the lower end of the body 1, and there are two groups of them. The connection of the movable frame 11 matches the internal size of the slide slot 12. When the drone is flying, the bidirectional motor 3 will drive the piston 7 to continuously generate air pressure through the empty slot at the upper end of the air pressure valve 5 by rotating the reciprocating screw 6, but the empty hole at the lower end of the air pressure valve 5 will discharge the generated air pressure, so that it will not enter the hose 10. When the drone descends, because there are more parts in contact with the air, the valve 9 rises along the connecting rod 8, thereby blocking the empty hole at the lower end of the air pressure valve 5. After the bottom of the air pressure valve 5 is blocked, the air pressure continuously generated by the piston 7 cannot be discharged and will enter the hose 10. At the same time, the hose 10 is connected to the spring telescopic rod 14, and the inside of the spring telescopic rod 14 is Hollowed out, after the air pressure enters the hose 10, the hose 10 will continuously input the air pressure into the spring telescopic rod 14. After the air pressure inside the spring telescopic rod 14 increases, it will gradually withdraw outward. Because the push plate 13 is fixedly connected to the spring telescopic rod 14, when the spring telescopic rod 14 is pushed out, the push plate 13 will also be pushed out, thereby pushing out the connection of the movable frame 11. As the connection is pushed out, the movable frame 11 will gradually open. When the drone lands, the movable frame 11 has been opened to provide a buffer for it, protecting the internal components from damage caused by strong vibration. After the drone lands, the piston 7 stops inflating, and the valve 9 will gradually drop under the influence of gravity. After the drop, the internal air pressure will be discharged along the empty hole at the bottom of the air pressure valve 5. As the pressure continues to be discharged, the spring telescopic rod 14 will gradually retract. When retracting, the connection of the movable frame 11 will also gradually retract, thereby storing the movable frame 11.

[0027] In an optional embodiment: the inner diameter of the push plate 13 matches the outer diameter of the connection of the movable frame 11, so that it can accurately push the connection of the movable frame 11 out when pushing it out, avoiding jamming that makes the movable frame 11 unable to open, and the spring telescopic rod 14 is fixedly connected to the rear end of the push plate 13, and the push plate 13 pushes the movable frame 11 through the spring telescopic rod 14.

[0028] In an optional embodiment: the connecting buckle 15 is movably connected to the intersection of the two groups of movable frames 11 and passes through the two groups of movable frames 11, so that the two groups of movable frames 11 are fixed, and the smoothness of the movable frames 11 is also increased. The roller 16 is movably connected to the lower end of each group of movable frames 11. When the movable frames 11 are stored, the roller 16 contacts the ground when the movable frames 11 touch the ground, which reduces the wear between the movable frames 11 and the ground and extends the service life of the movable frames 11.

[0029] Working principle and process: When the drone is ascending, the bidirectional motor 3 will drive the reciprocating screw 6 to rotate. When the reciprocating screw 6 rotates, it will drive the piston 7 to continuously increase the air pressure. When ascending, the air pressure will be continuously discharged through the empty hole at the bottom of the air pressure valve 5. When descending, the bottom valve 9 will close the air pressure valve 5, so that the air pressure enters the spring telescopic rod 14 through the hose 10. The spring telescopic rod 14 pushes the connection of the movable frame 11, so that the movable frame 11 opens in advance when descending. After landing, the valve 9 drops with gravity, thereby opening the air pressure valve 5 and gradually discharging the air pressure. As the air pressure is discharged, the spring telescopic rod 14 is gradually retracted, and the movable frame 11 is also retracted for storage.

[0030] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A UAV landing device, comprising a body (1), characterized in that: The machine body (1) is fixedly connected to a machine arm (2) for fixing on all sides. A bidirectional motor (3) for driving is provided on the side of the machine arm (2) away from the machine body (1). The driving end of the bidirectional motor (3) is connected to a propeller (4). The lower end of the machine arm (2) is fixedly connected to a pressure valve (5) for increasing air pressure. The other output end of the bidirectional motor (3) is connected to a reciprocating screw (6). A piston (7) is provided on the outside of the reciprocating screw (6). The end of the reciprocating screw (6) away from the bidirectional motor (3) is fixedly connected to a connecting rod (8). The lower end of the pressure valve (5) is provided with a piston (7). The air pressure valve (5) is fixedly connected to a transmission hose (10) on one side, and a movable frame (11) for shock absorption is provided at the lower end of the body (1). A guide groove (12) is provided at the connection of the movable frame (11). A push plate (13) for pushing is provided on one side of the guide groove (12). A spring telescopic rod (14) for controlling telescopic movement is connected to the back of the push plate (13). A connecting buckle (15) is movably connected to the connection of the movable frame (11), and a roller (16) for smooth lifting is movably connected to the lower end of the movable frame (11).

2. The UAV landing gear according to claim 1, characterized in that: The machine arms (2) are fixedly connected to four groups around the machine body (1), the bidirectional motors (3) are fixedly connected to the upper ends of the machine arms (2), and are provided at the upper ends of each group of machine arms (2), and the propellers (4) are driven by the bidirectional motors (3).

3. The UAV landing gear according to claim 1, characterized in that: The air pressure valve (5) is fixedly connected to the lower end of the machine arm (2), and its center is aligned with the center of the bidirectional motor (3). The reciprocating screw (6) is movably connected to the output end of the bidirectional motor (3), and passes through the machine arm (2) and is connected to the bottom of the upper bidirectional motor (3).

4. The UAV landing gear according to claim 1, characterized in that: The piston (7) is internally sleeved with a bearing seat, and the reciprocating screw (6) is connected to the bearing seat via a ball nut pair. The connecting rod (8) is fixedly connected to the lower end of the reciprocating screw (6), and its center is aligned with the center of the reciprocating screw (6). The outer side of the connecting rod (8) is movably connected to a valve (9).

5. The UAV landing gear according to claim 1, characterized in that: The hose (10) passes through the interior of the air pressure valve (5) and is connected to the spring telescopic rod (14), and each group of air pressure valves (5) is connected to the spring telescopic rod (14) through the hose (10). The movable frame (11) is movably connected to the lower end of the body (1), and there are two groups of movable frames (11). The connection of the movable frame (11) matches the internal size of the slide groove (12).

6. The UAV landing gear according to claim 1, characterized in that: The inner diameter of the push plate (13) matches the outer diameter of the connection portion of the movable frame (11), the spring telescopic rod (14) is fixedly connected to the rear end of the push plate (13), and the push plate (13) pushes the movable frame (11) via the spring telescopic rod (14).

7. The UAV landing gear according to claim 1, characterized in that: The connecting buckle (15) is movably connected to the intersection of the two groups of movable frames (11) and passes through the two groups of movable frames (11). The roller (16) is movably connected to the lower end of each group of movable frames (11).

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