Fire-fighting shouting investigation lighting unmanned aerial vehicle

Abstract

The utility model relates to a fire fighting shouting investigation lighting unmanned plane, aims at solving the current fire fighting unmanned plane generally adopts fixed wing or non collapsible structure design, leads to its lateral size is bigger, is difficult to pass through door and window, corridor narrow entrance, thereby fixed wing unmanned plane enters the building inside, needs manual disassembly wing after reassembly, serious delay investigation opportunity technical problem, including: fuselage, the four machine arms with the spiral propeller that the outer periphery side of fuselage evenly distributed have, the top between four machine arms is connected with the apron through detachable component, the utility model drives the eccentric arc -shaped groove through fixed column to push and pull machine arm when driving assembly drives the disc rotation, realizes machine arm along the guide slide rail assembly telescoping, thereby enters narrow lane, door and window before, machine arm shortens and can reduce lateral size, easily passes through narrow channel, compared with the fixed wing unmanned plane, avoids delaying investigation opportunity by omitting the step of disassembly wing.

Description

Technical Field

[0001] This utility model relates to the field of unmanned aerial vehicle (UAV) technology, specifically a fire-fighting loudspeaker reconnaissance and lighting UAV. Background Technology

[0002] In fire emergency scenarios, confined environments such as narrow alleyways, indoor fire scenes, and ruins place extremely high demands on the spatial adaptability of drones. Existing firefighting drones generally employ fixed-wing or non-foldable structures, resulting in large lateral dimensions that make it difficult to pass through narrow entrances such as doors, windows, and corridors. Consequently, when fixed-wing drones enter buildings, their wings must be manually disassembled and reassembled, severely delaying reconnaissance opportunities. Therefore, new technical solutions are needed to address this issue. Utility Model Content

[0003] The purpose of this utility model is to overcome the shortcomings of the existing technology, adapt to the needs of reality, and provide a fire-fighting loudspeaker reconnaissance and lighting drone to solve the technical problem that current fire-fighting drones generally adopt fixed-wing or non-foldable structure designs, resulting in their large lateral dimensions, making it difficult to pass through narrow entrances such as doors, windows, and corridors. As a result, when fixed-wing drones enter the interior of buildings, the wings need to be manually disassembled and reassembled, which seriously delays the reconnaissance opportunity.

[0004] To achieve the purpose of this utility model, the technical solution adopted by this utility model is as follows: A fire-fighting loudspeaker detection and lighting drone is designed, comprising:

[0005] The fuselage has four arms with propellers evenly distributed on its outer periphery, and the tops of the four arms are connected by a cover plate through a detachable component.

[0006] An adjustment mechanism, disposed between the machine body and the machine arm, is used to adjust the length of the machine arm. The adjustment mechanism includes:

[0007] A circular groove is formed in the middle of the surface of the machine body. A drive disk is provided in the circular groove, and a drive assembly is provided between the drive disk and the circular groove to drive the drive disk to rotate.

[0008] Four arc-shaped grooves are evenly opened on the surface of the drive disk along the circumference, and the center of each arc-shaped groove is eccentrically set with respect to the center of the drive disk.

[0009] A guide rail assembly is located between the arm and the body to guide and limit the extension and retraction of the arm;

[0010] A fixing post is fixed to one end of the arm near the body, and the fixing post is slidably embedded in the arc-shaped groove.

[0011] Preferably, a camera is provided at the bottom center of the body, and speakers and lights are symmetrically provided on both sides of the body on the camera.

[0012] Preferably, the disassembly assembly includes:

[0013] Multiple mounting posts are fixedly connected to the surface of the machine body;

[0014] Multiple fixing bolts, the same number as the number of mounting columns, each of the fixing bolts passing through the cover plate and threadedly connected to the surface of the corresponding mounting column, and the cover plate moving against the surface of the arm.

[0015] Preferably, the driving component includes:

[0016] A connecting shaft, one end of which is rotatably connected to the middle of the bottom of the inner cavity of the circular groove via a bearing, the top of which is connected to the bottom center of the drive disk, the connection between the drive disk and the connecting shaft is detachably connected by bolts, and a first worm gear is fixedly connected to the outside of the connecting shaft;

[0017] A drive motor is fixedly connected to the bottom of the inner cavity of the circular groove. The drive end of the drive motor is connected to a first worm gear via a coupling, and the first worm gear meshes with a first worm wheel.

[0018] Preferably, the guide rail assembly includes a guide groove formed on the body directly below the machine arm, a guide block is slidably connected in the guide groove, and the guide block is fixedly connected to the machine arm.

[0019] Preferably, the surface of the arm is rotatably embedded with balls, one-third of which are located on the outside of the arm and abut against the cover plate.

[0020] Preferably, a storage slot is provided in the middle of the bottom of the body, and a push rod motor is installed at the top of the inner cavity of the storage slot. The telescopic end of the push rod motor is connected to the camera. Rectangular slots are symmetrically provided on both sides of the body of the storage slot. The inner cavity of each of the two rectangular slots is rotatably connected to a rotating shaft through a sealed bearing. A rotating rod is fixedly connected to the outer side of each of the two rotating shafts. The speaker and the light are respectively connected to the two rotating rods. A rotating assembly is provided between the rotating shaft and the rectangular slot for the speaker and the light to be deployed and stored.

[0021] Preferably, the rotating assembly includes a second worm gear fixedly connected to the outside of the two rotating shafts, and a second drive motor is installed on the inner wall of each of the two rectangular slots. The drive ends of the second drive motors are connected to a second worm through a coupling, and the second worm and the second worm gear mesh.

[0022] Preferably, a chip removal hole is provided at the bottom of the inner cavity of the guide groove, and the width of the chip removal hole is smaller than the width of the guide block.

[0023] Preferably, batteries are installed on both sides of the housing, with the two batteries symmetrically distributed at the bottom of the housing.

[0024] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0025] 1. Automatic retraction: When the drive disk is rotated by the drive component, the eccentric arc groove pushes and pulls the arm through the fixed column, realizing the extension and retraction of the arm along the guide rail assembly, thereby entering narrow alleys and in front of doors and windows. The arm can be shortened to reduce the lateral size, easily passing through narrow passages. Compared with fixed-wing UAVs, it saves the step of disassembling the wings and avoids delaying the reconnaissance opportunity.

[0026] 2. Automatic deployment: After passing through narrow areas, the arms can quickly extend to the working length, and the propellers return to normal spacing, ensuring that flight stability is not affected and solving the problem of decreased flight performance after the traditional folding structure is retracted. Attached Figure Description

[0027] Figure 1 This is the overall front view of the present invention;

[0028] Figure 2 This is a top view of the connection between the fuselage and the arm of this utility model;

[0029] Figure 3 This is a top view showing the connection between the body and the drive disk of this utility model;

[0030] Figure 4 This is a front view of the connection between the arm, guide block, and fixed column of this utility model;

[0031] Figure 5 This is a schematic diagram of the bottom structure of the fuselage of this utility model;

[0032] Figure 6 This is an enlarged view of point A in this utility model;

[0033] Figure 7 This is an enlarged view of section B of this utility model.

[0034] In the diagram: 1. Machine body; 11. Mounting post; 12. Fixing bolt; 13. Cover plate; 14. Machine arm; 2. Circular groove; 21. Drive disc; 22. Arc groove; 23. Guide groove; 24. Chip removal hole; 25. Guide block; 26. Fixing post; 27. First drive motor; 28. First worm gear; 29. ​​First worm wheel; 210. Connecting shaft; 3. Rectangular groove; 31. Rotating shaft; 32. Rotating rod; 33. Horn; 34. Lighting lamp; 35. Second drive motor; 36. Second worm gear; 37. Second worm wheel; 4. Storage slot; 41. Push rod motor; 42. Camera; 5. Ball bearing; 6. Battery. Detailed Implementation

[0035] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0036] Example 1: A fire-fighting loudspeaker reconnaissance and lighting drone, see [link / reference] Figures 1 to 7 The system includes: a fuselage 1, with four arms 14, each equipped with a propeller, evenly distributed on the outer periphery of the fuselage 1, and a cover plate 13 connected between the tops of the four arms 14 via a detachable assembly; an adjustment mechanism located between the fuselage 1 and the arms 14 to adjust the length of the arms 14, the adjustment mechanism including: a circular groove 2, formed in the middle of the surface of the fuselage 1, a drive disk 21 disposed within the circular groove 2, and a drive assembly between the drive disk 21 and the circular groove 2 to drive the drive disk 21 to rotate; four arc-shaped grooves 22, evenly formed circumferentially on the surface of the drive disk 21, with the center of each arc-shaped groove 22 eccentrically set with the center of the drive disk 21; a guide rail assembly located between the arms 14 and the fuselage 1 for guiding and limiting the extension and retraction of the arms 14; and a fixing post 26 fixed to one end of the arms 14 near the fuselage 1, the fixing post 26 being slidably embedded in the arc-shaped grooves 22.

[0037] This device, through its adjustable mechanism and guide rail assembly, achieves the following during use:

[0038] Automatic retraction: When the drive disk 21 is rotated by the drive component, the eccentric arc groove 22 pushes and pulls the arm 14 through the fixed column 26, so that the arm 14 can extend and retract along the guide rail assembly, thereby entering narrow alleys and in front of doors and windows. The arm 14 can be shortened to reduce the lateral size and easily pass through narrow passages. Compared with fixed-wing UAVs, it saves the step of disassembling the wings and avoids delaying the reconnaissance opportunity.

[0039] Automatic deployment: After passing through narrow areas, the arm 14 can quickly extend to its working length, and the propellers return to normal spacing, ensuring that flight stability is not affected and solving the problem of decreased flight performance after the traditional folding structure is retracted.

[0040] For details, see Figure 1 A camera 42 is provided at the bottom center of the fuselage 1. A speaker 33 and a lighting lamp 34 are symmetrically provided on the fuselage 1 on both sides of the camera 42. The camera 42 can transmit images of the inside of the fire scene. The lighting lamp 34 provides a light source in dense smoke or dark environments, solving the problem of the cumbersome need for traditional reconnaissance equipment to be carried separately and improving the efficiency of information acquisition. At the same time, the speaker 33 can realize real-time announcements between ground command and inside the fire scene, guiding the evacuation of trapped personnel and instructing firefighters to act. There is no need to deploy additional communication equipment, shortening the emergency command transmission time. It is especially suitable for complex fire scenes where visibility is obstructed.

[0041] Further, see Figure 1 and Figure 3The disassembly assembly includes: multiple mounting posts 11, which are fixedly connected to the surface of the machine body 1; and multiple fixing bolts 12, the number of which is the same as the number of mounting posts 11. Each fixing bolt 12 passes through the cover plate 13 and is threaded to the surface of the corresponding mounting post 11. The cover plate 13 moves against the surface of the arm 14. The cover plate 13 can be removed by disassembling the fixing bolts 12, allowing direct inspection and maintenance of core components of the adjustment mechanism such as the drive disc 21 and the arc groove 22, facilitating dust cleaning and replacement of worn parts.

[0042] It is worth noting that, see Figure 1 and Figure 6 The drive assembly includes: a connecting shaft 210, one end of which is rotatably connected to the center of the bottom of the inner cavity of the circular groove 2 via a bearing; the top of the connecting shaft 210 is connected to the bottom center of the drive disk 21; the connection between the drive disk 21 and the connecting shaft 210 is detachably connected by bolts; and a first worm gear 29 is fixedly connected to the outer side of the connecting shaft 210; a drive motor, fixedly connected to the bottom of the inner cavity of the circular groove 2; the drive end of the drive motor is connected to a first worm 28 via a coupling, and the first worm 28 meshes with the first worm gear 29. The drive motor is activated by starting the drive... The motor drives the first worm 28 to rotate, which in turn drives the first worm wheel 29 to rotate, which in turn drives the drive disk 21 to rotate at a constant speed. This allows for precise control of the extension and retraction of the arm 14, ensuring symmetrical contraction of the arms 14 on both sides and preventing the center of gravity from shifting. Since the lead angle of the first worm 28 is less than or equal to the equivalent friction angle between the meshing teeth, the engagement between the first worm 28 and the first worm wheel 29 has a self-locking characteristic, which can lock the length of the arm 14. It will not loosen when there is no external driving force, preventing the arm 14 from accidentally extending or retracting due to flight vibration or collision. This ensures dimensional stability when passing through narrow spaces and avoids the risk of jamming or falling.

[0043] It is worth noting that, see Figure 3 and Figure 4 The guide rail assembly includes a guide groove 23 on the fuselage 1 directly below the arm 14. A guide block 25 is slidably connected in the guide groove 23 and is fixedly connected to the arm 14. By sliding the guide block 25 along the guide groove 23, the arm 14 is forced to extend and retract in a fixed direction, ensuring that the fixed column 26 always slides smoothly in the arc groove 22, avoiding adjustment jamming caused by the arm 14 tilting. The guide structure ensures that the extension and retraction of the four sets of arms 14 are synchronized to maintain the stability of the UAV's center of gravity, avoiding rollover during adjustment, especially when hovering and adjusting in a narrow space, thus improving flight safety.

[0044] It is worth mentioning that, see Figure 3The surface of the arm 14 is rotatably embedded with balls 5, one-third of which are located on the outside of the arm 14 and abut against the cover plate 13. The balls 5 convert the sliding friction between the arm 14 and the cover plate 13 into rolling friction, which greatly reduces the resistance when the arm 14 extends and retracts, avoids adjustment jamming caused by excessive friction, ensures that the arm 14 retracts quickly to pass through narrow channels, and the wear of rolling friction on the arm 14 and the cover plate 13 is significantly lower than that of sliding friction, which extends the service life of both, reduces the risk of decreased adjustment accuracy due to component wear, and meets the high-intensity use requirements of fire emergency.

[0045] It is worth mentioning that, see Figure 1 and Figure 5 The bottom center of the device body 1 has a storage slot 4. A push rod motor 41 is installed at the top of the inner cavity of the storage slot 4. The telescopic end of the push rod motor 41 is connected to the camera 42. Rectangular slots 3 are symmetrically opened on both sides of the device body 1. The inner cavities of the two rectangular slots 3 are rotatably connected to the rotating shafts 31 through sealed bearings. Rotating rods 32 are fixedly connected to the outer sides of the two rotating shafts 31. The speaker 33 and the light 34 are respectively connected to the two rotating rods 32. The rotating shafts 31 and the rectangular slots 32 are connected to the camera 42. A rotating assembly is provided between slots 3 for the horn 33 and the light 34 to be deployed and retracted. When the drone takes off, the camera 42 retracts into the storage slot 4 via the push rod motor 41, and the horn 33 and the light 34 are folded into the rectangular slot 3 via the rotating rod 32, so that there are no exposed parts at the bottom of the fuselage 1, the lateral size is reduced, and it can easily pass through narrow entrances such as doors, windows and corridors. Moreover, the camera 42, horn 33 and light 34 can be retracted when not in use, which can reduce the wind resistance of the drone, which is beneficial to the flight of the drone and reduces the energy consumption of the drone.

[0046] It is worth mentioning that, see Figure 5 and Figure 7 The rotating assembly includes a second worm gear 37 fixedly connected to the outside of the two rotating shafts 31. A second drive motor 35 is installed on the inner wall of each of the two rectangular grooves 3. The drive ends of the second drive motors 35 are connected to a second worm 36 via a coupling. The second worm 36 meshes with the second worm gear 37. Since the lead angle of the second worm 36 is less than or equal to the equivalent friction angle between the meshing teeth, the meshing of the second worm gear 37 and the second worm 36 has a self-locking characteristic. The horn 33 and the lighting lamp 34 can be fixed at any unfolding angle, such as the lighting direction is aimed at the trapped personnel and the shouting direction is towards a specific area. This avoids angle deviation caused by flight vibration or airflow impact, ensuring that there are no blind spots in the lighting and no deviation in the shouting. The second drive motor 35 drives the angle adjustment to realize automatic control of storage and unfolding.

[0047] It is worth mentioning that, see Figure 3The bottom of the inner cavity of the guide groove 23 is provided with a chip removal hole 24, and the width of the chip removal hole 24 is smaller than the width of the guide block 25. The dust and fire debris entering the guide groove 23 can be discharged in time through the chip removal hole 24, so as to avoid the accumulation of debris and hinder the sliding of the guide block 25, and ensure that the extension and retraction of the arm 14 is always smooth. The width of the chip removal hole 24 is smaller than that of the guide block 25, which can prevent the guide block 25 from falling off accidentally, while not affecting the normal sliding of the guide block 25, thus taking into account both cleaning function and structural stability.

[0048] It is worth mentioning that, see Figure 5 On the other two sides of the fuselage 1, there are two batteries 6 installed. The two batteries 6 are symmetrically distributed at the bottom of the fuselage 1. The batteries 6 provide power for the drone's flight, the first drive motor 27, the second drive motor 35, the lighting 34 and the horn 33.

[0049] In addition, all components designed in this utility model are 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. Those skilled in the art can fully implement them, so there is no need to elaborate. The content protected by this utility model does not involve improvements to the internal structure and method.

[0050] The embodiments disclosed herein are preferred embodiments, but are not limited thereto. Those skilled in the art can readily grasp the spirit of this utility model based on the above embodiments and make different extensions and variations. However, as long as they do not depart from the spirit of this utility model, they are all within the protection scope of this utility model.

Claims

1. A fire-voice-detecting and lighting unmanned aerial vehicle, characterized in that, include: The fuselage (1) has four arms (14) with propellers evenly distributed on its outer periphery, and the tops of the four arms (14) are connected by a cover plate (13) through a detachable component. An adjustment mechanism, located between the machine body (1) and the machine arm (14), is provided to adjust the length of the machine arm (14). The adjustment mechanism includes: A circular groove (2) is formed in the middle of the surface of the body (1). A drive disk (21) is provided in the circular groove (2). A drive assembly is provided between the drive disk (21) and the circular groove (2) to drive the drive disk (21) to rotate. Four arc-shaped grooves (22) are evenly opened on the surface of the drive disk (21) along the circumference, and the center of each arc-shaped groove (22) is eccentrically set with respect to the center of the drive disk (21). The guide rail assembly is located between the arm (14) and the body (1) and is used to guide and limit the extension and retraction of the arm (14); A fixed post (26) is fixed to one end of the arm (14) near the body (1), and the fixed post (26) is slidably embedded in the arc groove (22).

2. The fire-fighting loudspeaker reconnaissance and lighting drone as described in claim 1, characterized in that, A camera (42) is provided at the bottom center of the body (1), and a speaker (33) and a light (34) are symmetrically provided on the body (1) on both sides of the camera (42).

3. The fire-fighting loudspeaker reconnaissance lighting drone as described in claim 1, characterized in that, The disassembly assembly includes: Multiple mounting posts (11) are fixedly connected to the surface of the fuselage (1); Multiple fixing bolts (12) are provided, the number of which is the same as the number of mounting posts (11). All of the fixing bolts (12) pass through the cover plate (13) and are threaded to the surface of the corresponding mounting post (11). The cover plate (13) moves against the surface of the arm (14).

4. The fire-fighting loudspeaker reconnaissance and lighting drone as described in claim 1, characterized in that, The driving component includes: A connecting shaft (210) is rotatably connected at one end to the middle of the bottom of the inner cavity of the circular groove (2) via a bearing. The top of the connecting shaft (210) is connected to the bottom center of the drive disk (21). The connection between the drive disk (21) and the connecting shaft (210) is detachably connected by bolts. A first worm gear (29) is fixedly connected to the outside of the connecting shaft (210). A drive motor is fixedly connected to the bottom of the inner cavity of the circular groove (2). The drive end of the drive motor is connected to a first worm (28) via a coupling, and the first worm (28) meshes with a first worm wheel (29).

5. A fire-fighting loudspeaker reconnaissance and lighting drone as described in claim 1, characterized in that, The guide rail assembly includes a guide groove (23) opened on the body (1) directly below the arm (14), a guide block (25) is slidably connected in the guide groove (23), and the guide block (25) is fixedly connected to the arm (14).

6. The fire-fighting loudspeaker reconnaissance lighting drone as described in claim 1, characterized in that, The surface of the arm (14) is rotatably inlaid with balls (5), one-third of which are placed on the outside of the arm (14) and abut against the cover plate (13).

7. A fire-fighting loudspeaker reconnaissance and lighting drone as described in claim 2, characterized in that, A storage slot (4) is provided at the bottom center of the body (1). A push rod motor (41) is installed at the top of the inner cavity of the storage slot (4). The telescopic end of the push rod motor (41) is connected to the camera (42). Rectangular slots (3) are symmetrically provided on the body (1) on both sides of the storage slot (4). The inner cavities of the two rectangular slots (3) are rotatably connected to a rotating shaft (31) through a sealed bearing. Rotating rods (32) are fixedly connected to the outer sides of the two rotating shafts (31). The horn (33) and the lighting lamp (34) are respectively connected to the two rotating rods (32). A rotating assembly is provided between the rotating shaft (31) and the rectangular slot (3) for the horn (33) and the lighting lamp (34) to unfold and store.

8. A fire-fighting loudspeaker reconnaissance and lighting drone as described in claim 7, characterized in that, The rotating assembly includes a second worm gear (37) fixedly connected to the outside of the two rotating shafts (31), and a second drive motor (35) is installed on the inner wall of each of the two rectangular grooves (3). The drive ends of the second drive motors (35) are connected to a second worm (36) via a coupling. The second worm (36) meshes with the second worm gear (37).

9. A fire-fighting loudspeaker reconnaissance and lighting drone as described in claim 5, characterized in that, The bottom of the inner cavity of the guide groove (23) is provided with a chip removal hole (24), and the width of the chip removal hole (24) is smaller than the width of the guide block (25).

10. A fire-fighting loudspeaker reconnaissance and lighting drone as described in claim 8, characterized in that, Batteries (6) are installed on the other two sides of the body (1) of the storage slot (4), and the two batteries (6) are symmetrically distributed at the bottom of the body (1).

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