Fire-fighting unmanned aerial vehicle for reconnaissance of fire behavior

Abstract

The utility model belongs to the technical field of unmanned aerial vehicles, and particularly relates to a fire-fighting unmanned aerial vehicle for fire reconnaissance, the fire-fighting unmanned aerial vehicle comprises an unmanned aerial vehicle body and a protective cover, the front side and the rear side of the bottom of the unmanned aerial vehicle body are provided with first placing grooves, clamping boxes are arranged in the placing grooves, and clamping structures are arranged in the clamping boxes; an adjusting mechanism is arranged at the bottom of the unmanned aerial vehicle body; the adjusting mechanism comprises a transverse adjusting unit and a longitudinal adjusting unit; the transverse adjusting unit comprises a second motor, a first fixing block, a first fixing plate, a U-shaped block, a second connecting strip and a third connecting strip. According to the fire-fighting unmanned aerial vehicle for reconnaissance of the fire behavior, through the design of the transverse adjusting unit and the longitudinal adjusting unit, a camera can be flexibly adjusted in the horizontal direction and the vertical direction, and through connection of a first connecting block and cooperation of two motors, the camera can rotate in all directions; therefore, a wider reconnaissance range is covered, and more comprehensive and accurate fire information is provided for firefighters.

Description

Technical Field

[0001] The utility model relates to the technical field of unmanned aerial vehicles, in particular to a fire-fighting unmanned aerial vehicle used for scouting fire conditions. Background Art

[0002] A firefighting drone is a special type of drone used specifically for firefighting operations. It not only has the advantages of mobility, comprehensive vision, low cost and reliable operation, but can also provide ground commanders with fire situation information such as the burned area and fire spread trend at the fire scene. Therefore, firefighting drones have gradually become one of the most important firefighting equipment for fire departments.

[0003] A Chinese patent with announcement number CN206969000U discloses a firefighting drone for fire reconnaissance, including a drone body, a frame, a fixing rod, and a motor. The frame is arranged on the edge of the lower surface of the drone body, the fixing rods are arranged around the sides of the drone body, the motor is arranged at the end of the fixing rod, a propeller is arranged at the upper end of the motor, a loudspeaker is arranged at the lower end of the motor, a clearance light is arranged in the middle of the side of the motor, a battery box is arranged in the middle of the front of the drone body, an infrared camera is arranged in the middle of the lower surface of the drone body, a controller is arranged in the middle of the upper surface of the drone body, a video processor is arranged in the middle of the upper surface of the controller, an antenna is arranged in the middle of the upper surface of the video processor, a display screen is arranged at the upper end of the front of the controller, and a power switch is arranged at the lower end of the side of the controller.

[0004] The above-mentioned existing technical solutions have the following defects: In practical applications, especially in complex scenarios such as fire reconnaissance, it is usually necessary for the camera to be able to move freely in three dimensions in order to more accurately locate the fire source and the spread of the fire. However, according to the above description, the position of the camera is fixed in the middle of the lower surface of the drone body, so the angle and direction cannot be adjusted, which limits the drone's reconnaissance capability and flexibility to a certain extent. In addition, the camera is not protected. When performing fire reconnaissance missions, the drone may encounter harsh environments such as high temperature and smoke, and these environmental factors may cause damage to the camera.

[0005] To this end, we proposed a firefighting drone for fire reconnaissance to solve the above problems. Utility Model Content

[0006] The purpose of the utility model is to provide a firefighting drone for fire reconnaissance, so as to solve the problems in the above-mentioned background technology that the camera cannot be moved in three dimensions and the camera is not protected.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a firefighting drone for fire reconnaissance, comprising a drone body and a protective cover, a placement slot 1 is provided on the front and rear sides of the bottom of the drone body, a card connection box is provided inside the placement slot, a card connection structure is provided inside the card connection box, and an adjustment mechanism is provided at the bottom of the drone body;

[0008] The adjustment mechanism includes a transverse adjustment unit and a longitudinal adjustment unit;

[0009] The lateral adjustment unit includes a second motor, a first fixing block, a first fixing plate, a U-shaped block, a second connecting bar and a third connecting bar. The top of the first fixing block is fixedly connected to the right middle of the bottom surface of the drone. The upper surface of the first fixing plate is fixedly connected to the bottom of the first fixing block. The second connecting bar is rotatably connected to the middle of the first fixing plate. One end of the second connecting bar is fixedly connected to the middle of the bottom of the U-shaped block. The other end of the second connecting bar is fixedly connected to the output end of the motor. The third connecting bar is rotatably connected to the two ends of the U-shaped block respectively. A camera is fixedly connected to one end of the third connecting bar close to each other.

[0010] The longitudinal adjustment unit includes a motor 1, a fixed block 2, a fixed plate 2, a second connecting block, a connecting strip 6, a connecting strip 5, a connecting strip 4 and a first connecting block. The top of the fixed block 2 is fixedly connected to the left middle part of the bottom surface of the drone, the upper surface of the fixed plate 2 is fixedly connected to the bottom of the fixed block 2, the bottom of the second connecting block is rotatably connected to the middle part of the fixed plate 2 through the connecting strip 6, the other end of the connecting strip 6 passes through the middle part of the fixed plate 2 and is fixedly connected to the output end of the motor 1, the top of the connecting strip 2 is rotatably connected to the top of the first connecting block through the connecting strip 5, and the bottom of the first connecting block is connected to the middle of the front of the camera through the connecting strip 4.

[0011] Preferably, a second placement groove is provided around and on the bottom of the protective cover, and a transparent baffle is provided inside the second placement groove. The transparent baffle can protect the camera and prevent it from being directly impacted by external objects. The transparent baffle is made of transparent material to ensure that the camera can shoot normally without blocking the line of sight.

[0012] Preferably, the transparent baffle is made of polycarbonate (PC) material, which has the characteristics of high strength, high transparency, impact resistance and flame retardancy. This material can ensure that the camera can still work normally in harsh environments while maintaining a clear field of view.

[0013] Preferably, buckles are fixedly connected on the front and rear sides of the upper surface of the protective cover, so that the protective cover can be quickly and stably fixed on the drone body, and it is also convenient to disassemble and replace. The cooperation between the buckles and the card box ensures the stability and safety of the protective cover during flight.

[0014] Preferably, the snap-fit ​​structure includes a pressing strip, a connecting strip 1, a card block, an extrusion block 1, a spring 1, a spring 2, an extrusion block 2 and an entrance, wherein the entrance is opened at the left side of the bottom of the snap-fit ​​box, the top of the spring 1 is fixedly connected to the right side of the upper surface inside the snap-fit ​​box, the bottom of the spring 1 is fixedly connected to the upper surface of the extrusion block 1, the upper surface of the card block is fixedly connected to the lower surface of the extrusion block, the upper surface of the pressing strip is fixedly connected to the lower surface of the card block, the connecting strip 1 passes through the middle part above the card block and is fixedly connected to the front and rear sides inside the snap-fit ​​box, the card block is rotatably connected to the connecting strip 1, the top of the spring 2 is fixedly connected to the left side of the upper surface inside the snap-fit ​​box, and the upper surface of the extrusion block 2 is fixedly connected to the bottom of the spring 2. This snap-fit ​​structure allows the buckle to be easily inserted into the inside of the snap-fit ​​box and maintain a stable snap-fit ​​state through the elastic force of the spring. The design of the pressing strip allows the user to easily operate the movement of the card block to achieve quick connection and separation of the buckle and the snap-fit ​​box.

[0015] Preferably, the height of spring one is smaller than that of spring two, and the height of spring one is smaller than that of spring two, so that the card block is subjected to sufficient pressure when being inserted, thereby ensuring the firmness of the card connection.

[0016] Preferably, the lower left side of the card block is connected to the buckle in a triangular shape. The triangular clip design can increase the contact area between the card block and the buckle, improve the stability of the clip, and reduce the possibility of loosening due to vibration or other external factors.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] 1. The firefighting drone used for fire reconnaissance has a camera that can be flexibly adjusted in both horizontal and vertical directions through the design of a lateral adjustment unit and a longitudinal adjustment unit. The camera can be rotated in all directions through the connection of the first connecting block and the cooperation of the two motors, so as to cover a wider reconnaissance range and provide firefighters with more comprehensive and accurate fire information.

[0019] The adjustment mechanism is driven by a motor, which makes the adjustment of the camera more precise and quick, thus improving the efficiency of fire detection.

[0020] 2. The firefighting drone used for fire reconnaissance has a unique snap-on structure design that makes the installation and removal of the protective cover easier. By pressing the bar, users can easily achieve the quick connection and separation of the buckle and the snap-on box, which improves the convenience of operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall front structure of the utility model;

[0022] Figure 2It is a schematic diagram of the overall side structure of the utility model;

[0023] Figure 3 This is a schematic diagram of the protective cover structure of the utility model;

[0024] Figure 4 This is a schematic diagram of the internal structure of the clamping device of the utility model;

[0025] Figure 5 It is a schematic diagram of the structure of the rotating device of the utility model.

[0026] In the figure: 1 drone body, 101 placement slot 1, 2 protective cover, 201 placement slot 2, 202 buckle, 301 fixing block 1, 302 fixing plate 1, 303 U-shaped block, 304 connecting strip 2, 305 connecting strip 3, 306 first connecting block, 307 connecting strip 4, 308 connecting strip 5, 309 second connecting block, 310 connecting strip 6, 311 fixing plate 2, 312 fixing block 2, 4 snap box, 401 pressing strip, 402 connecting strip 1, 403 card block, 404 extrusion block 1, 405 spring 1, 406 spring 2, 407 extrusion block 2, 408 entrance, 5 camera, 6 motor 1, 7 motor 2. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] See also Figure 1-Figure 5 The utility model provides a technical solution: a firefighting drone for fire reconnaissance, comprising a drone body 1 and a protective cover 2, wherein the protective cover 2 is provided with a placement slot 201 around and on the bottom, and a transparent baffle is provided inside the placement slot 201, and the transparent baffle is made of polycarbonate PC. The protective cover 2 is designed to protect the key components of the drone, especially the camera 5, from damage by high temperature, smoke and splashes in the fire scene. The transparent baffle made of polycarbonate PC not only has high strength and impact resistance, but also maintains a clear field of view, ensuring that the camera 5 can normally shoot the fire scene. The design of the buckle 202 enables the protective cover 2 to be quickly and firmly fixed to the drone body 1, thereby improving the stability and reliability of the entire system. Buckles 202 are fixedly connected to the front and rear sides of the upper surface of the protective cover 2.

[0029] A placement groove 101 is provided at the front and rear sides of the bottom of the drone body 1, a card connection box 4 is provided inside the placement groove, a card connection structure is provided inside the card connection box 4, and an adjustment mechanism is provided at the bottom of the drone body 1;

[0030] The adjustment mechanism includes a lateral adjustment unit and a longitudinal adjustment unit;

[0031] The lateral adjustment unit includes a motor 27, a fixed block 1 301, a fixed plate 1 302, a U-shaped block 303, a connecting bar 2 304 and a connecting bar 305. The top of the fixed block 1 301 is fixedly connected to the right middle of the bottom surface of the drone, the upper surface of the fixed plate 1 302 is fixedly connected to the bottom of the fixed block 1 301, the connecting bar 2 304 is rotatably connected to the middle of the fixed plate 1 302, one end of the connecting bar 2 304 is fixedly connected to the middle of the bottom of the U-shaped block 303, and the other end of the connecting bar 2 304 is fixedly connected to the output end of the motor, and the connecting bar 3 305 is rotatably connected to the two ends of the U-shaped block 303 respectively. The connecting bar 3 305 is fixedly connected to the camera 5 at one end close to each other; when the angle of the camera 5 in the horizontal direction needs to be adjusted, the motor 27 starts to work. The output end of the motor 27 is fixedly connected to one end of the connecting bar 2 304, so the rotation of the motor 27 will drive the rotation of the connecting bar 2 304. The other end of the second connecting bar 304 is fixedly connected to the middle of the bottom of the U-shaped block 303, so as the second connecting bar 304 rotates, the U-shaped block 303 will also rotate accordingly. The design of the U-shaped block 303 allows it to maintain structural stability when rotating. The third connecting bar 305 is rotatably connected to the two ends of the U-shaped block 303, and the end of the third connecting bar 305 that is close to each other is fixedly connected to the camera 5. Therefore, when the U-shaped block 303 rotates, the third connecting bar 305 will move accordingly, thereby driving the camera 5 to adjust the angle in the horizontal direction.

[0032] The longitudinal adjustment unit includes a motor 16, a fixing block 2 312, a fixing plate 2 311, a second connecting block 309, a connecting strip 6 310, a connecting strip 5 308, a connecting strip 4 307 and a first connecting block 306. The top of the fixing block 2 312 is fixedly connected to the left side of the middle of the bottom surface of the drone. The upper surface of the fixing plate 2 311 is fixedly connected to the bottom of the fixing block 2 312. The bottom of the second connecting block 309 is rotatably connected to the middle of the fixing plate 2 311 through the connecting strip 6 310. The other end of the connecting strip 6 310 penetrates the middle of the fixing plate 2 311 and is fixedly connected to the output end of the motor 16. The top of the connecting strip 2 is rotatably connected to the top of the first connecting block 306 through the connecting strip 5 308. The first connecting block 306 is connected to the middle of the front of the camera 5 through the bottom connecting strip 4 307. When the angle of the camera 5 in the vertical direction needs to be adjusted, the motor 16 starts to work. The output end of the motor 16 is fixedly connected to the other end of the connecting strip 6 310, so the rotation of the motor 16 drives the rotation of the connecting strip 6 310. One end of the connection bar 6 310 is connected to the bottom of the second connection block 309 by rotation, and the top of the second connection block 309 is connected to the top of the first connection block 306 by rotation through the connection bar 5 308. This connection structure allows the second connection block 309 and the first connection block 306 to be adjusted in angle in the vertical direction, and the bottom of the first connection block 306 is fixedly connected to the middle of the front of the camera 5 through the connection bar 4 307. Therefore, when the first connection block 306 moves in the vertical direction, the camera 5 will also adjust its vertical angle accordingly.

[0033] The clamping structure includes a pressing strip 401, a connecting strip 1 402, a clamping block 403, an extruding block 1 404, a spring 1 405, a spring 2 406, an extruding block 2 407 and an entrance 408. The entrance 408 is opened on the left side of the bottom of the clamping box 4. The top of the spring 1 405 is fixedly connected to the right side of the upper surface of the inner part of the clamping box 4. The bottom of the spring 1 405 is fixedly connected to the upper surface of the extruding block 1 404. The upper surface of the clamping block 403 is fixedly connected to the lower surface of the extruding block 1 404. The upper surface of the pressing strip 401 is fixedly connected to the lower surface of the clamping block 403. The connecting strip 1 402 passes through the middle part of the upper part of the clamping block 403 and is fixedly connected to the front and rear sides of the inner part of the clamping box 4. The clamping block 403 is rotatably connected to the connecting strip 1 402. The lower left side of the clamping block 403 is triangularly clamped to the buckle 202. The top of spring 2 406 is fixedly connected to the left side of the upper surface inside the snap-in box 4, the upper surface of extrusion block 2 407 is fixedly connected to the bottom of spring 2 406, the height of spring 1 405 is less than the height of spring 2 406, and the design of the snap-in structure makes the installation and removal of the protective cover 2 easier and faster. By pressing the strip 401, the user can easily connect and separate the buckle 202 and the block 403, which improves the convenience of operation. The coordinated use of spring 1 405 and spring 2 406 ensures the stability and reliability of the snap-in. The height of spring 1 405 is less than that of spring 2 406, so that the block 403 is subjected to sufficient pressure when snapped in, ensuring the firmness of the snap-in. The triangular snap-in design increases the contact area, improves the stability of the snap-in, and reduces the risk of loosening of the snap-in due to vibration or other external factors.

[0034] Working principle: The operator should first check whether the battery, motor, remote control and other components of the drone are normal to ensure that the drone is in good working condition. The protective cover 2 is quickly installed on the drone body 1 through the snap-on structure to ensure that key components such as the camera 5 are effectively protected. The operator controls the drone to take off through the remote control and selects a relatively flat, open and obstacle-free site for takeoff. After the drone arrives at the fire scene, it captures the fire scene image through the camera 5. When the angle of the camera 5 in the horizontal direction needs to be adjusted, the motor 2 7 starts to work. The output end of the motor 2 7 is fixedly connected to one end of the connecting bar 2 304, so the rotation of the motor 2 7 will drive the rotation of the connecting bar 2 304. The other end of the connecting bar 2 304 is fixedly connected to the middle of the bottom of the U-shaped block 303, so as the connecting bar 2 304 rotates, the U-shaped block 303 will also rotate accordingly. The design of the U-shaped block 303 allows it to maintain structural stability when rotating. The connecting bar 3 305 is rotatably connected to the two ends of the U-shaped block 303 respectively, and the end of the connecting bar 3 305 close to each other is fixedly connected with the camera 5. Therefore, when the U-shaped block 303 rotates, the connecting bar 305 will move accordingly, thereby driving the camera 5 to adjust the angle in the horizontal direction. When the two motors work together, the camera 5 can rotate in all directions, covering a wider reconnaissance range and providing firefighters with more comprehensive and accurate fire information.

[0035] When the angle of the camera 5 in the vertical direction needs to be adjusted, the motor 16 starts to work. The output end of the motor 16 is fixedly connected to the other end of the connecting strip 6 310, so the rotation of the motor 16 will drive the rotation of the connecting strip 6 310. One end of the connecting strip 6 310 is connected to the bottom of the second connecting block 309 by rotation, and the top of the second connecting block 309 is connected to the top of the first connecting block 306 by rotation through the connecting strip 5 308. This connection structure enables the second connecting block 309 and the first connecting block 306 to adjust the angle in the vertical direction. The first connecting block 306 is fixedly connected to the middle of the front of the camera 5 through the bottom of the connecting strip 4 307. Therefore, when the first connecting block 306 moves in the vertical direction, the camera 5 will also adjust the vertical angle accordingly. And transmit the image to the operating table and monitor for firefighters to analyze the fire situation.

[0036] After the operation is completed, by pressing the strip 401, the user can easily connect and separate the buckle 202 and the block 403, which improves the convenience of operation. The coordinated use of spring 1 405 and spring 2 406 ensures the stability and reliability of the clamping. The height of spring 1 405 is smaller than that of spring 2 406, so that the block 403 is subjected to sufficient pressure when clamped in, ensuring the firmness of the clamping. The triangular clamping design increases the contact area, improves the stability of the clamping, and reduces the risk of loosening of the clamping due to vibration or other external factors. It is convenient to clean the outer surface of the protective cover 2.

[0037] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

Claims

1. A firefighting drone for fire reconnaissance, comprising a drone body (1) and a protective cover (2), characterized in that: The drone body (1) is provided with a placement groove 1 (101) on both the front and rear sides of the bottom, a snap-in box (4) is provided inside the placement groove, a snap-in structure is provided inside the snap-in box (4), and an adjustment mechanism is provided at the bottom of the drone body (1); The adjustment mechanism includes a transverse adjustment unit and a longitudinal adjustment unit; The lateral adjustment unit comprises a second motor (7), a first fixing block (301), a first fixing plate (302), a U-shaped block (303), a second connecting strip (304) and a third connecting strip (305), wherein the top of the first fixing block (301) is fixedly connected to the middle right of the bottom surface of the drone, the upper surface of the first fixing plate (302) is fixedly connected to the bottom of the first fixing block (301), the second connecting strip (304) is rotatably connected to the middle of the first fixing plate (302), one end of the second connecting strip (304) is fixedly connected to the middle of the bottom of the U-shaped block (303), the other end of the second connecting strip (304) is fixedly connected to the output end of the motor, the third connecting strip (305) is rotatably connected to the two ends of the U-shaped block (303), and the third connecting strip (305) is fixedly connected to a camera (5) at one end close to each other; The longitudinal adjustment unit comprises a motor 1 (6), a fixing block 2 (312), a fixing plate 2 (311), a second connecting block (309), a connecting bar 6 (310), a connecting bar 5 (308), a connecting bar 4 (307) and a first connecting block (306), wherein the top of the fixing block 2 (312) is fixedly connected to the left middle of the bottom surface of the drone, the upper surface of the fixing plate 2 (311) is fixedly connected to the bottom of the fixing block 2 (312), the bottom of the second connecting block (309) is rotatably connected to the middle of the fixing plate 2 (311) through the connecting bar 6 (310), the other end of the connecting bar 6 (310) passes through the middle of the fixing plate 2 (311) and is fixedly connected to the output end of the motor 1 (6), the top of the connecting bar 2 (304) is rotatably connected to the top of the first connecting block (306) through the connecting bar 5 (308), and the bottom of the first connecting block (306) is connected to the middle of the front of the camera (5) through the connecting bar 4 (307).

2. A firefighting drone for fire reconnaissance according to claim 1, characterized in that: The protective cover (2) is provided with a second placement groove (201) on the periphery and bottom surface thereof, and a transparent baffle is provided inside the second placement groove (201).

3. A firefighting drone for fire reconnaissance according to claim 2, characterized in that: The transparent baffle is made of polycarbonate.

4. A firefighting drone for fire reconnaissance according to claim 1, characterized in that: Buckles (202) are fixedly connected to the front and rear sides of the upper surface of the protective cover (2).

5. The firefighting drone for fire reconnaissance according to claim 1, characterized in that: The clamping structure comprises a pressing strip (401), a connecting strip 1 (402), a clamping block (403), an extrusion block 1 (404), a spring 1 (405), a spring 2 (406), an extrusion block 2 (407) and an entrance (408), wherein the entrance (408) is opened on the left side of the bottom of the clamping box (4), the top of the spring 1 (405) is fixedly connected to the right side of the upper surface of the inside of the clamping box (4), the bottom of the spring 1 (405) is fixedly connected to the upper surface of the extrusion block 1 (404), and the upper surface of the clamping block (403) is fixedly connected to the upper surface of the extrusion block 1 (404). The surface is fixedly connected to the lower surface of the extrusion block (404), the upper surface of the pressing strip (401) is fixedly connected to the lower surface of the clamping block (403), the connecting strip (402) passes through the upper middle part of the clamping block (403) and is fixedly connected to the front and rear sides of the clamping box (4), the clamping block (403) is rotatably connected to the connecting strip (402), the top of the spring (406) is fixedly connected to the left side of the upper surface inside the clamping box (4), and the upper surface of the extrusion block (407) is fixedly connected to the bottom of the spring (406).

6. A firefighting drone for fire reconnaissance according to claim 5, characterized in that: The height of the spring one (405) is smaller than the height of the spring two (406).

7. The firefighting drone for fire reconnaissance according to claim 5, characterized in that: The lower left side of the clamping block (403) is in a triangular shape and is clamped to the buckle (202).

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