High-altitude airborne megaphone for unmanned aerial vehicle

Abstract

The utility model relates to the technical field of unmanned aerial vehicles, and discloses a high-altitude airborne megaphone for an unmanned aerial vehicle, which comprises a mounting plate mounted below the unmanned aerial vehicle, side plates fixed on two sides of the mounting plate respectively, and a bidirectional motor fixed below the mounting plate and arranged between the two side plates, the two output ends of the bidirectional motor penetrate through the side plates correspondingly to be provided with rotating arms, telescopic arms are slidably installed in the rotating arms in the length direction, driving assemblies used for driving the telescopic arms to move are further installed on the outer sides of the rotating arms, and one ends of the telescopic arms extend out of the rotating arms to be fixedly provided with mounting supports. The mounting plate and the rotating arm are connected in a rotating mode, the megaphone can be rotated upwards through the rotating arm in the flying process of the unmanned aerial vehicle, the megaphone can be folded, and the phenomenon that the megaphone is folded due to the fact that the megaphone is folded when the unmanned aerial vehicle flies is avoided. And the megaphone or the rotating arm hinders the flight, so that the use effect of the device is improved.

Description

Technical Field

[0001] This utility model relates to the field of unmanned aerial vehicle (UAV) technology, specifically to a high-altitude airborne loudspeaker for UAVs. Background Technology

[0002] Chinese Utility Model Patent Publication No. CN218877583U discloses a drone equipped with a megaphone, including a drone body and a support base located below the drone body. A connector is located below the drone body, with an upper connecting rod hinged to the connector. A lower connecting rod is slidably connected to the upper connecting rod. Correspondingly, connecting holes are opened at the bottom of the upper connecting rod and the top of the lower connecting rod. A connecting seat is fixedly installed at the bottom of the lower connecting rod. An elastic snap-fit ​​component for the megaphone body is fixedly installed on the mounting assembly and is adapted to the upper connecting rod. This design avoids direct contact between the megaphone and the drone body, and prevents noise generated by the rotor blades from affecting the megaphone's performance due to excessive proximity. It also improves the stability of the megaphone body installation and avoids the risk of the megaphone detaching from the drone during high-altitude use.

[0003] Although the aforementioned utility model patent can separate the megaphone from the rotor blades on the drone, avoiding the impact of excessive rotor blade noise on the megaphone, the megaphone and the drone are connected by a linkage. If the drone is in flight, the megaphone or linkage may obstruct the drone's flight, causing inconvenience.

[0004] Therefore, we propose a high-altitude airborne loudspeaker for UAVs to address the problems mentioned above. Utility Model Content

[0005] The purpose of this utility model is to solve the aforementioned technical problems.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a high-altitude airborne megaphone for a drone, comprising a mounting plate installed below the drone, side plates fixed on both sides of the mounting plate, a bidirectional motor fixed below the mounting plate between the two side plates, a rotating arm mounted on each of the two output ends of the bidirectional motor passing through the side plates, a telescopic arm slidably mounted inside the rotating arm along its length, a drive assembly for moving the telescopic arm mounted on the outside of the rotating arm, one end of the telescopic arm extending to the outside of the rotating arm and fixed with a mounting bracket, and the same megaphone mounted between the two mounting brackets.

[0007] Furthermore: the drive assembly includes a drive arm rotatably mounted on the outer wall of the rotating arm and a drive rod rotatably mounted on one end of the drive arm. One end of the drive rod is hinged to a hinge shaft, and one end of the hinge shaft passes through a groove formed on the rotating arm and is fixedly connected to one end of the telescopic arm.

[0008] Furthermore: a gear ring coaxially arranged with the bidirectional motor is fixed on the outer side wall of the side plate, and the gear ring meshes with a gear rotatably mounted on the inner side wall of the rotating arm. A rotating shaft is fixed at the axis of the gear, and the rotating shaft passes through the rotating arm and is fixedly connected to the drive arm.

[0009] Furthermore: a guide rod is fixed to the inner side wall of the rotating arm along the length direction, and a guide groove is opened on one side of the telescopic arm along the length direction to cooperate with the guide rod, and the telescopic arm is slidably mounted on the guide rod through the guide groove.

[0010] Furthermore, the mounting plate has upwardly inclined fixed mounting seats on both sides, and a movable mounting seat is provided on one side of the fixed mounting seat. The fixed mounting seat and the movable mounting seat are connected by several fixing bolts.

[0011] The beneficial effects of this utility model are:

[0012] The mounting plate and rotating arm of this utility model are connected by rotation. During the flight of the drone, the rotating arm can rotate the megaphone upward, which can fold the megaphone and avoid the megaphone or rotating arm from obstructing the flight of the drone, thus improving the use effect of the device. A telescopic arm is slidably installed inside the rotating arm. During the rotation of the rotating arm, the telescopic arm can be driven to move through the cooperation of the gear ring, gear and drive component, so that the megaphone can move in the direction of the rotating blade, further avoiding the impact of excessive noise from the rotating blade on the megaphone. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the folded structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the open state structure of this utility model;

[0015] Figure 3 This is a front view schematic diagram of the structure in the open state of this utility model;

[0016] Figure 4 This is a partial structural schematic diagram of the present invention;

[0017] Figure 5 This is an exploded structural diagram of the fixed mounting base and the movable mounting base in this utility model.

[0018] The names corresponding to each mark in the diagram:

[0019] 1. Mounting plate; 2. Side plate; 3. Bidirectional motor; 4. Rotating arm; 5. Telescopic arm; 6. Drive assembly; 601. Drive arm; 602. Drive rod; 603. Hinge shaft; 604. Slide groove; 7. Mounting bracket; 8. Megaphone; 9. Gear ring; 10. Gear; 11. Guide rod; 12. Guide groove; 13. Fixed mounting base; 14. Movable mounting base; 15. Fixing bolts. Detailed Implementation

[0020] 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. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model are within the protection scope of the present utility model.

[0021] A high-altitude airborne megaphone for unmanned aerial vehicles (UAVs are known prior art and will not be described in detail here). It should be noted that fixed mounting bases 13 are fixedly fixed upwards on both sides of the mounting plate 1, and a movable mounting base 14 is provided on one side of each fixed mounting base 13. The movable mounting base 14 and the fixed mounting base 13 can be fitted onto the support legs of the UAV. A fixing bolt 15 passes through the movable mounting base 14 and is threadedly connected to the fixed mounting base 13, thereby securing the fixed mounting base 13 and the movable mounting base 14 and preventing loosening during use, thus providing strong stability.

[0022] On both sides of the mounting plate 1, side plates 2 are respectively fixed. Between the two side plates 2, a bidirectional motor 3 fixed below the mounting plate 1 is provided. The two output ends of the bidirectional motor 3 respectively penetrate through the side plates 2 and are equipped with rotating arms 4. When the bidirectional motor 3 works, it can drive the two rotating arms 4 to rotate and adjust. Inside the rotating arm 4, a telescopic arm 5 is slidably mounted along the length direction. Through the setting of the telescopic arm 5, the megaphone 8 can be adjusted along the length direction of the rotating arm 4. It should be noted that: along the length direction, a guide rod 11 with a "convex" cross-section is fixed on the inner side wall of the rotating arm 4. Along the length direction, a guide groove 12 adapted to the guide rod 11 is opened on the inner side wall of the telescopic arm 5, and the guide rod 11 is slidably mounted inside the guide groove 12. Through the cooperation of the guide rod 11 and the guide groove 12, it plays a role in limiting the telescopic arm 5, preventing the telescopic arm 5 from shaking during the telescopic process, and improving the stability of the device. One end of each of the two telescopic arms 5 extends outside the rotating arm 4 and is respectively fixed with a mounting bracket 7, and the same megaphone 8 is mounted between the two mounting brackets 7. When the drone drives the megaphone 8 to fly at high altitude, the megaphone 8 can shout at high altitude.

[0023] On the outside of the side plate 2, a gear ring 9 coaxially arranged with the bidirectional motor 3 is fixed. On the inner side wall of the rotating arm 4, a gear 10 is rotatably mounted, and the gear ring 9 and the gear 10 are meshed with each other. When the rotating arm 4 drives the gear 10 to rotate around the axis of the bidirectional motor 3, the gear 10 can be driven to rotate through the gear ring 9. A rotating shaft (not shown in the figure) is fixed at the center of the gear 10, and the rotating shaft passes through the rotating arm 4 and is equipped with a driving component 6, and one end of the driving component 6 is connected to the telescopic arm 5. During the process that the gear 10 drives the driving component 6 to rotate through the rotating shaft, the telescopic arm 5 can be driven to extend or contract, and the length can be adjusted, which has strong flexibility.

[0024] Specifically: The driving component 6 includes a driving arm 601 fixed at one end of the rotating shaft. One end of the driving arm 601 is hinged with a driving rod 602, and one end of the driving rod 602 is hinged on a hinge shaft 603. One end of the hinge shaft 603 passes through a chute 604 opened on the rotating arm 4 and is connected to the end of the telescopic arm 5. When one end of the driving arm 601 rotates downward, it can push the driving rod 602. One end of the driving rod 602 can push the telescopic arm 5 through the hinge shaft 603, so that the telescopic arm 5 can move along the length direction of the rotating arm 4, thus playing a role in adjustment.

[0025] During the process that the drone drives the megaphone 8 to fly, the megaphone 8 can be folded with the mounting plate 1 to prevent the flight from being blocked by the megaphone 8 during the flight of the drone;

[0026] If you are using the megaphone 8 to make a call, you can open the megaphone 8 and the mounting plate 1 so that the megaphone 8 is far away from the drone's rotating blades to make the call clear due to the excessive noise of the drone's rotating blades.

[0027] When the megaphone 8 is turned on: First, the bidirectional motor 3 is turned on. The two output shafts of the bidirectional motor 3 can drive the rotating arm 4 to move downward. Since the gear ring 9 and the gear 10 are in a meshing state, the rotating arm 4 drives the gear 10 to rotate downward around the axis of the bidirectional motor 3. When the gear 10 rotates downward, it can drive the drive arm 601 to rotate upward. The drive arm 601 can drive the telescopic arm 5 to extend through the drive rod 602, so that the two telescopic arms 5 can drive the megaphone 8 to move through the mounting bracket 7. This allows the megaphone 8 to move in a direction far away from the rotating blade, preventing the megaphone 8 from being unclear due to excessive noise from the rotating blade.

Claims

1. A high-altitude airborne loudspeaker for a drone, comprising a mounting plate (1) installed below the drone, characterized in that; Side plates (2) are fixed on both sides of the mounting plate (1). A bidirectional motor (3) is fixed below the mounting plate (1) between the two side plates (2). Rotating arms (4) are installed through the two output ends of the bidirectional motor (3) respectively. A telescopic arm (5) is slidably installed inside the rotating arm (4) along the length direction. A drive assembly (6) for driving the telescopic arm (5) to move is also installed on the outside of the rotating arm (4). One end of the telescopic arm (5) extends to the outside of the rotating arm (4) and is fixed with a mounting bracket (7). The same megaphone (8) is installed between the two mounting brackets (7).

2. The high-altitude airborne loudspeaker for unmanned aerial vehicles (UAVs) according to claim 1, characterized in that: The drive assembly (6) includes a drive arm (601) rotatably mounted on the outer wall of the rotating arm (4) and a drive rod (602) rotatably mounted on one end of the drive arm (601). One end of the drive rod (602) is hinged to a hinge shaft (603), and one end of the hinge shaft (603) passes through a groove (604) opened on the rotating arm (4) and is fixedly connected to one end of the telescopic arm (5).

3. A high-altitude airborne loudspeaker for unmanned aerial vehicles according to claim 2, characterized in that: The outer side wall of the side plate (2) is fixed with a gear ring (9) coaxially arranged with the bidirectional motor (3), and the gear ring (9) meshes with a gear (10) rotatably mounted on the inner side wall of the rotating arm (4). The gear (10) is fixed with a rotating shaft at its axis, and the rotating shaft passes through the rotating arm (4) and is fixedly connected to the drive arm (601).

4. A high-altitude airborne loudspeaker for unmanned aerial vehicles according to claim 1, characterized in that: The inner sidewall of the rotating arm (4) is fixed with a guide rod (11) along the length direction. The telescopic arm (5) has a guide groove (12) along the length direction that works with the guide rod (11), and the telescopic arm (5) is slidably mounted on the guide rod (11) through the guide groove (12).

5. A high-altitude airborne loudspeaker for unmanned aerial vehicles according to claim 1, characterized in that: The mounting plate (1) has an upwardly inclined fixed mounting seat (13) fixed on both sides. A movable mounting seat (14) is provided on one side of the fixed mounting seat (13), and the fixed mounting seat (13) and the movable mounting seat (14) are connected by a number of fixing bolts (15).

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