Large-load unmanned aerial vehicle rescue device for fire rescue

Abstract

The large-load unmanned aerial vehicle rescue device comprises an unmanned aerial vehicle body, landing gears are fixedly connected to the left side and the right side of the unmanned aerial vehicle body correspondingly, landing buffering assemblies are arranged at the bottoms of the left landing gear and the right landing gear correspondingly, and a fire extinguishing nozzle angle adjusting assembly is arranged on the front side of the bottom of the unmanned aerial vehicle body; and a pressure self-adaptive fire extinguishing nozzle quick connecting assembly is arranged at the bottom of the fire extinguishing nozzle angle adjusting assembly. The invention relates to the technical field of fire rescue equipment. According to the large-load unmanned aerial vehicle rescue device for fire rescue, the structural integrity of the device in high-frequency rescue operation is guaranteed through the arranged takeoff and landing buffering assembly; a fire extinguishing nozzle angle adjusting assembly is arranged, the unmanned aerial vehicle body does not need to be frequently moved, and the risk of unmanned aerial vehicle air crash caused by misoperation is reduced; and by arranging the pressure self-adaptive fire extinguishing nozzle quick-connection assembly, the universality of the equipment is improved.

Description

Technical Field

[0001] This invention relates to the field of fire rescue equipment technology, specifically a heavy-duty drone rescue device for fire rescue. Background Technology

[0002] Significant progress has been made in the field of firefighting and rescue using drone technology. Currently, many firefighting drones are capable of autonomous flight via radio remote control or programmed control, greatly expanding firefighting capabilities. Some heavy-duty firefighting drones, such as some hexacopters or quadcopters with eight rotors, can carry multiple mission payloads. Other drones employ modular payload designs, allowing for rapid switching between reconnaissance, firefighting, and rescue modules based on fire scene requirements, playing a crucial role in various complex fire situations.

[0003] In existing technologies, most lack a buffer structure, and the impact force of takeoff and landing acts directly on the fuselage, which may cause problems such as the detachment of internal components of the controller, the misalignment of the motor output shaft, and the jamming of the rescue cabin's lifting system, affecting rescue operations. In existing technologies, when the nozzle angle is fixed, the fire extinguishing agent spray direction is singular. In order to adjust the spray direction, operators need to frequently operate the drone to tilt, turn, and ascend and descend, which will significantly reduce the drone's flight stability and increase the risk of crash. In existing technologies, without a universal quick-connect structure, drones can usually only be adapted to specific models of fire extinguishing nozzles, and cannot be flexibly changed according to the fire situation. This severely limits the drone's fire extinguishing capabilities and scope of application. Moreover, the clamping pressure cannot be adaptively adjusted, resulting in poor connection stability and potential safety hazards.

[0004] To address these issues, the present invention provides a heavy-duty drone rescue device for fire and rescue operations. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a heavy-duty drone rescue device for firefighting and rescue operations. Through a landing buffer assembly, utilizing the dual buffering effects of a damper and a spring, it effectively absorbs and disperses impact forces, ensuring the structural integrity of the equipment during high-frequency rescue operations. The included fire nozzle angle adjustment assembly allows the fire nozzle to rotate in multiple dimensions without frequent movement of the drone itself, reducing the risk of drone crashes due to operational errors. The pressure-adaptive fire nozzle quick-connect assembly is compatible with various standard fire nozzle specifications, improving the device's versatility. Simultaneously, the adaptive adjustment prevents the nozzle from detaching during high-altitude spraying due to excessively loose clamping, and avoids nozzle deformation and damage due to excessively tight clamping, thus solving the aforementioned problems.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a heavy-duty unmanned aerial vehicle (UAV) rescue device for fire and rescue, comprising a UAV body, a controller fixedly connected to the top of the UAV body, landing gears fixedly connected to both the left and right sides of the UAV body, landing buffer components provided at the bottom of both landing gears, a fire extinguishing nozzle angle adjustment component provided at the front bottom of the UAV body, a pressure adaptive fire extinguishing nozzle quick-connect component provided at the bottom of the fire extinguishing nozzle angle adjustment component, and a rescue cabin hoisting and lifting component provided at the center bottom of the UAV body.

[0007] Preferably, the landing buffer assembly includes two control frames, which are fixedly connected to the front and rear sides of the bottom of the landing gear, respectively. Lifting blocks are slidably connected inside the front and rear control frames. Dampers that are fixedly connected to the top wall of the control frame are fixedly connected to the top of the front and rear lifting blocks. Buffer plates are fixedly connected to the bottom of the front and rear lifting blocks.

[0008] Preferably, a crossbar is fixedly connected to the opposite surfaces of the two control frames, and sliders are slidably connected to the front and rear sides of the outer wall of the crossbar. A spring sleeved on the outer wall of the crossbar is fixedly connected to the opposite surfaces of the two sliders. Two connecting rods arranged symmetrically on the left and right sides of the two sliders are rotatably connected. The top of the upper connecting rod is rotatably connected to the bottom of the landing gear, and the bottom of the lower connecting rod is rotatably connected to the top of the buffer plate.

[0009] Preferably, the fire extinguishing nozzle angle adjustment assembly includes a fixing frame, which is fixedly connected to the bottom front side of the UAV body. A connecting arc plate is fixedly connected to the bottom of the fixing frame. A motor is fixedly connected to the rear side of the connecting arc plate. The output end of the motor extends through to the front side of the connecting arc plate and is fixedly connected to a rotating arc plate. A motor is fixedly connected to the right side of the rotating arc plate. The output end of the motor extends through to the left side of the rotating arc plate and is fixedly connected to a fixing block.

[0010] Preferably, the controller is electrically connected to motor one and motor two respectively.

[0011] Preferably, the pressure adaptive fire extinguishing nozzle quick-connect assembly includes a connecting frame, which is fixedly connected to the bottom of the fixed block. A cylinder is fixedly connected to the top of the connecting frame. The telescopic end of the cylinder extends through to the bottom of the connecting frame and is fixedly connected to a moving block. A lifting rod running in a front-to-back direction is fixedly connected inside the moving block. Moving rods are fixedly connected to both the front and rear sides of the lifting rod.

[0012] Preferably, the bottom of the connecting frame is fixedly connected to two symmetrical fixed rods that run in a front-back direction. The outer walls of the two fixed rods are rotatably connected to four rectangularly distributed rotating rods. The middle of each of the two rotating rods is rotatably connected to a connecting rod rotatably connected to a moving rod. The bottom of the opposite surfaces of the two rotating rods is fixedly connected to an arc-shaped clamping block. The opposite surfaces of the two arc-shaped clamping blocks are fixedly connected to a pressure sensor. The interior of the two arc-shaped clamping blocks holds a fire extinguishing nozzle.

[0013] Preferably, the controller is electrically connected to the cylinder and the two pressure sensors respectively.

[0014] Preferably, the rescue cabin hoisting and lifting assembly includes a hoist frame, which is fixedly connected to the bottom center of the UAV body. A motor is fixedly connected to the left side of the hoist frame, and hoisting rollers are rotatably connected to the inner walls of the left and right sides of the hoist frame. The output end of the motor extends through the interior of the hoist frame and is fixedly connected to the hoisting rollers.

[0015] Preferably, the outer wall of the winch roller is wound with a steel wire rope, and four hoisting ropes are fixedly connected to the bottom of the steel wire ropes. A rescue cabin is fixedly connected to the bottom of the four hoisting ropes, and the controller is electrically connected to the motor.

[0016] Beneficial effects

[0017] This invention provides a heavy-duty drone rescue device for firefighting and rescue operations. Compared with existing technologies, it has the following advantages:

[0018] (1) The heavy-duty UAV rescue device for fire rescue, through the set landing buffer component, can effectively absorb and disperse the impact force by using the dual buffering effect of damper and spring, avoid the force being directly transmitted to the core components such as UAV, prevent the components from becoming loose due to vibration, poor circuit contact or mechanical deformation, and ensure the structural integrity of the equipment in high-frequency rescue operations.

[0019] (2) The heavy-duty drone rescue device for fire rescue can drive the fire extinguishing nozzle to rotate in multiple dimensions through the fire extinguishing nozzle angle adjustment component. It can cover a larger fire extinguishing area without frequently moving the drone body, thus improving fire extinguishing efficiency. At the same time, it avoids frequent adjustments to the drone's attitude, which could cause the drone to collide with obstacles, and reduces the risk of drone crashes caused by operational errors.

[0020] (3) The heavy-duty UAV rescue device for fire rescue, through the pressure adaptive fire extinguishing nozzle quick-connect component, can be compatible with a variety of standard fire extinguishing nozzles. There is no need to design a separate connection structure for different nozzles, which improves the versatility of the device. At the same time, the adaptive adjustment can prevent the nozzle from falling off when spraying at high altitude due to loose clamping, and prevent the nozzle from being deformed and damaged due to tight clamping. Attached Figure Description

[0021] Figure 1 This is a three-dimensional view of the overall structure of the present invention;

[0022] Figure 2 This is a partial structural schematic diagram of the present invention;

[0023] Figure 3 This is a schematic diagram of the structure from an upward angle of the present invention;

[0024] Figure 4 This is a schematic diagram of the landing and takeoff buffer assembly structure of the present invention;

[0025] Figure 5 This is a schematic diagram of the fire extinguishing nozzle angle adjustment component of the present invention;

[0026] Figure 6 This is a schematic diagram of the quick-connect assembly structure of the pressure adaptive fire extinguishing nozzle of the present invention;

[0027] Figure 7 This is a schematic diagram of the structure of the rescue cabin hoisting and lifting assembly of the present invention.

[0028] In the diagram: 1. UAV body; 10. Controller; 11. Landing gear; 2. Landing buffer assembly; 20. Control frame; 21. Lifting block; 22. Damper; 23. Buffer plate; 24. Crossbar; 25. Slider; 26. Spring; 27. Connecting rod one; 3. Fire extinguishing nozzle angle adjustment assembly; 30. Fixing frame; 31. Connecting arc plate; 32. Motor one; 33. Rotating arc plate; 34. Motor two; 35. Fixing 4. Pressure adaptive fire extinguishing nozzle quick-connect assembly; 40. Connecting frame; 41. Cylinder; 42. Moving block; 43. Lifting rod; 44. Moving rod; 45. Fixed rod; 46. Rotating rod; 47. Connecting rod two; 48. Arc-shaped clamping block; 49. Fire extinguishing nozzle; 5. Rescue cabin hoisting and lifting assembly; 50. Hoisting frame; 51. Motor three; 52. Hoisting roller; 53. Steel wire rope; 54. Hoisting rope; 55. Rescue cabin. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] Example 1:

[0031] Please see Figure 1-4A heavy-duty drone rescue device for fire and rescue includes a drone body 1, a controller 10 fixedly connected to the top of the drone body 1, landing gear 11 fixedly connected to both the left and right sides of the drone body 1, landing buffer components 2 provided at the bottom of both landing gear 11, a fire extinguishing nozzle angle adjustment component 3 provided at the bottom front of the drone body 1, a pressure adaptive fire extinguishing nozzle quick-connect component 4 provided at the bottom of the fire extinguishing nozzle angle adjustment component 3, and a rescue cabin hoisting and lifting component 5 provided at the bottom center of the drone body 1.

[0032] Furthermore, the drone body 1 adopts a multi-rotor, high-load-bearing design to meet the requirements for carrying rescue equipment and fire extinguishing equipment. The top of the drone body 1 is fixedly connected to the controller 10 by bolts. The controller 10 uses an STM32F407IGH6 microcontroller, which has powerful data processing capabilities and rich peripheral interfaces, and can realize coordinated control of all components of the entire device. The left and right sides of the drone body 1 are fixedly connected to the landing gear 11 by welding. The landing gear 11 is made of high-strength aluminum alloy and has good load-bearing capacity. The bottom of the left and right landing gear 11 is equipped with landing buffer components 2 to reduce the impact force during drone take-off and landing.

[0033] The landing buffer assembly 2 includes two control frames 20, which are fixedly connected to the front and rear sides of the bottom of the landing gear 11 respectively. Lifting blocks 21 are slidably connected inside the front and rear control frames 20. Dampers 22, which are fixedly connected to the top of the front and rear lifting blocks 21 and are fixedly connected to the inner top wall of the control frame 20, are fixedly connected to the bottom of the front and rear lifting blocks 21. Buffer plates 23 are fixedly connected to the bottom of the front and rear lifting blocks 21.

[0034] A crossbar 24 is fixedly connected to the opposite surfaces of the two control frames 20. Slider 25 is slidably connected to the front and rear sides of the outer wall of the crossbar 24. A spring 26 sleeved on the outer wall of the crossbar 24 is fixedly connected to the opposite surfaces of the two sliders 25. Two symmetrically arranged connecting rods 27 are rotatably connected to the left and right sides of the two sliders 25. The top of the upper connecting rod 27 is rotatably connected to the bottom of the landing gear 11, and the bottom of the lower connecting rod 27 is rotatably connected to the top of the buffer plate 23.

[0035] Furthermore, the damper 22 is a hydraulic damper of model AD2020, which can provide stable buffering force. The bottom of the buffer plate 23 is attached with a rubber pad to further enhance the buffering effect. The top of the upper connecting rod 27 is rotatably connected to the bottom of the landing gear 11 by a pin, and the bottom of the lower connecting rod 27 is rotatably connected to the top of the buffer plate 23 by a pin.

[0036] When the landing buffer assembly 2 is working, when the UAV lands and touches the ground, the buffer plate 23 moves upward under the impact force, causing the lifting block 21 to slide within the control frame 20 and compress the damper 22. At the same time, the buffer plate 23 pushes the slider 25 to slide relative to the crossbar 24 through the connecting rods 27 on the upper and lower sides and compresses the spring 26. The damper 22 and the spring 26 together absorb the impact energy to achieve buffering and shock absorption. Through the landing buffer assembly 2, the dual buffering effect of the damper 22 and the spring 26 can effectively absorb and disperse the impact force, avoid the force being directly transmitted to the core components such as the UAV, prevent the components from becoming loose due to vibration, poor circuit contact or mechanical deformation, and ensure the structural integrity of the equipment in high-frequency rescue operations.

[0037] Example 2:

[0038] Please see Figure 2-5 This embodiment provides a technical solution based on embodiment one: the fire extinguishing nozzle angle adjustment assembly 3 includes a fixing frame 30, which is fixedly connected to the bottom front side of the UAV body 1. A connecting arc plate 31 is fixedly connected to the bottom of the fixing frame 30. A motor 32 is fixedly connected to the rear side of the connecting arc plate 31. The output end of the motor 32 extends through to the front side of the connecting arc plate 31 and is fixedly connected to a rotating arc plate 33. A motor 34 is fixedly connected to the right side of the rotating arc plate 33. The output end of the motor 34 extends through to the left side of the rotating arc plate 33 and is fixedly connected to a fixing block 35.

[0039] The controller 10 is electrically connected to motor 1 32 and motor 2 34 respectively.

[0040] When the fire extinguishing nozzle angle adjustment component 3 adjusts the angle, the controller 10 starts motor 32, whose output drives the rotating arc plate 33 to rotate along the connecting arc plate 31, thereby adjusting the angle of the fire extinguishing nozzle 49 along the axis of motor 32. The controller 10 also starts motor 34, whose output drives the fixed block 35 to rotate, thereby adjusting the angle of the fire extinguishing nozzle 49 along the axis of motor 34. Through the coordinated action of the two motors, the spray angle can be adjusted in all directions within a certain range. The fire extinguishing nozzle angle adjustment component 3 can drive the fire extinguishing nozzle 49 to rotate in multiple dimensions, covering a larger fire extinguishing area without frequently moving the drone body, thus improving fire extinguishing efficiency. At the same time, it avoids frequent adjustments to the drone's attitude, which could lead to collisions with obstacles, reducing the risk of drone crashes due to operational errors.

[0041] Example 3:

[0042] Please see Figure 2-5This embodiment provides a technical solution based on embodiment one: the pressure adaptive fire extinguishing nozzle quick-connect assembly 4 includes a connecting frame 40, the connecting frame 40 is fixedly connected to the bottom of the fixing block 35, the top of the connecting frame 40 is fixedly connected to a cylinder 41, the telescopic end of the cylinder 41 extends through to the bottom of the connecting frame 40 and is fixedly connected to a moving block 42, the interior of the moving block 42 is fixedly connected to a lifting rod 43 that runs back and forth, and the front and rear sides of the lifting rod 43 are fixedly connected to moving rods 44.

[0043] The bottom of the connecting frame 40 is fixedly connected to two symmetrical fixed rods 45 that run back and forth. The outer walls of the two fixed rods 45 are rotatably connected to four rectangularly distributed rotating rods 46. The middle of each of the two rotating rods 46 is rotatably connected to a connecting rod 47 that is rotatably connected to the moving rod 44. The bottom of the opposite surfaces of the two rotating rods 46 is fixedly connected to an arc-shaped clamping block 48. The opposite surfaces of the two arc-shaped clamping blocks 48 are fixedly connected to a pressure sensor. The inside of the two arc-shaped clamping blocks 48 holds a fire extinguishing nozzle 49.

[0044] The controller 10 is electrically connected to the cylinder 41 and the two pressure sensors respectively.

[0045] Furthermore, the pressure sensor is a thin-film pressure sensor of model FSS1500N. The two arc-shaped clamps 48 on the left and right sides hold the fire extinguishing nozzle 49 to be installed. The fire extinguishing nozzle 49 is a standard fire sprinkler of model ZSTZ-15. The controller 10 is electrically connected to the cylinder 41 and the two pressure sensors through wires. It can control the cylinder 41 to act according to the feedback signal of the pressure sensor, so as to realize the adaptive clamping of the fire extinguishing nozzle 49.

[0046] When installing the fire extinguishing nozzle 49, the controller 10 controls the extension end of the cylinder 41 to extend, driving the moving block 42, lifting rod 43 and moving rod 44 to descend. The moving rod 44 pulls the rotating rod 46 along the fixed rod 45 through the connecting rod 47, so that the arc-shaped clamping blocks 48 on the left and right sides move away from each other. After the fire extinguishing nozzle 49 is placed in, the extension end of the cylinder 41 retracts, and the arc-shaped clamping blocks 48 close and clamp. The pressure sensor detects the clamping force in real time and feeds it back to the controller 10. The controller 10 adjusts the action of the cylinder 41 according to the feedback to ensure that the clamping force is moderate. Through the setting of the pressure-adaptive fire extinguishing nozzle quick-connect assembly 4, it can be compatible with various specifications of standard fire extinguishing nozzles 49 without the need to design a separate connection structure for different nozzles, which improves the versatility of the equipment. At the same time, the adaptive adjustment can avoid the nozzle falling off when spraying at high altitude due to excessively loose clamping, and the nozzle being deformed and damaged due to excessively tight clamping.

[0047] Example 4:

[0048] Please see Figure 2-5This embodiment provides a technical solution based on embodiment one: the rescue cabin hoisting and lifting assembly 5 includes a hoist frame 50, which is fixedly connected to the bottom middle of the UAV body 1. A motor 51 is fixedly connected to the left side of the hoist frame 50, and hoisting rollers 52 are rotatably connected to the inner walls of the left and right sides of the hoist frame 50. The output end of the motor 51 passes through the interior of the hoist frame 50 and is fixedly connected to the hoisting rollers 52.

[0049] A steel wire rope 53 is wound around the outer wall of the winch roller 52. Four hoisting ropes 54 are fixedly connected to the bottom of the steel wire rope 53. A rescue cabin 55 is fixedly connected to the bottom of the four hoisting ropes 54. The controller 10 is electrically connected to the motor 3 51.

[0050] Furthermore, the output end of motor 3 51 extends into the interior of winch frame 50 and is connected to winch roller 52 via coupling. Rescue cabin 55 is made of lightweight alloy material and can accommodate trapped personnel. Controller 10 is electrically connected to motor 3 51 via wires to achieve precise control of the lifting and lowering of rescue cabin 55.

[0051] When the rescue cabin hoisting and lifting assembly 5 is working, the controller 10 starts the motor 3 51, whose output end drives the hoisting roller 52 to rotate forward or reverse, thereby releasing or retracting the wire rope 53. The wire rope 53 drives the rescue cabin 55 to descend to the designated position to pick up the trapped personnel, or to rise to a safe height to transfer the personnel, via the hoisting rope 54.

[0052] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0053] During operation, when the drone lands and touches the ground, the buffer plate 23 moves upward under the impact force, causing the lifting block 21 to slide within the control frame 20 and compress the damper 22. At the same time, the buffer plate 23 pushes the slider 25 to slide relative to the crossbar 24 through the connecting rods 27 on the upper and lower sides, compressing the spring 26. The damper 22 and the spring 26 together absorb the impact energy, achieving buffering and shock absorption. Through the set landing buffer assembly 2, the dual buffering effect of the damper 22 and the spring 26 can effectively absorb and disperse the impact force, avoid the force being directly transmitted to the drone and other core components, prevent the components from becoming loose due to vibration, poor circuit contact or mechanical deformation, and ensure the structural integrity of the equipment in high-frequency rescue operations.

[0054] When the fire extinguishing nozzle angle adjustment component 3 adjusts the angle, the controller 10 starts motor 32, whose output drives the rotating arc plate 33 to rotate along the connecting arc plate 31, thereby adjusting the angle of the fire extinguishing nozzle 49 along the axis of motor 32. The controller 10 also starts motor 34, whose output drives the fixed block 35 to rotate, thereby adjusting the angle of the fire extinguishing nozzle 49 along the axis of motor 34. Through the coordinated action of the two motors, the spray angle can be adjusted in all directions within a certain range. The fire extinguishing nozzle angle adjustment component 3 can drive the fire extinguishing nozzle 49 to rotate in multiple dimensions, covering a larger fire extinguishing area without frequently moving the drone body, thus improving fire extinguishing efficiency. At the same time, it avoids frequent adjustments to the drone's attitude, which could lead to collisions with obstacles, reducing the risk of drone crashes due to operational errors.

[0055] When installing the fire extinguishing nozzle 49, the controller 10 controls the extension end of the cylinder 41 to extend, driving the moving block 42, lifting rod 43 and moving rod 44 to descend. The moving rod 44 pulls the rotating rod 46 along the fixed rod 45 through the connecting rod 47, so that the arc-shaped clamping blocks 48 on the left and right sides move away from each other. After the fire extinguishing nozzle 49 is placed in, the extension end of the cylinder 41 retracts, and the arc-shaped clamping blocks 48 close and clamp. The pressure sensor detects the clamping force in real time and feeds it back to the controller 10. The controller 10 adjusts the action of the cylinder 41 according to the feedback to ensure that the clamping force is moderate. Through the setting of the pressure-adaptive fire extinguishing nozzle quick-connect assembly 4, it can be compatible with various specifications of standard fire extinguishing nozzles 49 without the need to design a separate connection structure for different nozzles, which improves the versatility of the equipment. At the same time, the adaptive adjustment can avoid the nozzle falling off when spraying at high altitude due to excessively loose clamping, and the nozzle being deformed and damaged due to excessively tight clamping.

[0056] When the rescue cabin hoisting and lifting assembly 5 is working, the controller 10 starts the motor 3 51, whose output end drives the hoisting roller 52 to rotate forward or reverse, thereby releasing or retracting the wire rope 53. The wire rope 53 drives the rescue cabin 55 to descend to the designated position to pick up the trapped personnel, or to rise to a safe height to transfer the personnel, via the hoisting rope 54.

[0057] It should be noted that the controller 10, damper 22, cylinder 41, fire extinguishing nozzle 49, pressure sensor, motors and other components are all common models on the market, and each component is a device or equipment that exists in the prior art, or a device or equipment that can be implemented by the prior art. Their power supply, specific composition and principle are clear to those skilled in the art. At the same time, the fixed connection method mentioned in this invention can adopt the connection methods that exist in the prior art and are common, such as bolts, welding and bonding, so they will not be described in detail.

[0058] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus.

[0059] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A heavy-duty unmanned aerial vehicle (UAV) rescue device for fire and rescue, comprising a UAV body (1), characterized in that: A controller (10) is fixedly connected to the top of the UAV body (1). Landing gears (11) are fixedly connected to both the left and right sides of the UAV body (1). Landing buffer components (2) are provided at the bottom of both landing gears (11). A fire extinguishing nozzle angle adjustment component (3) is provided at the front bottom of the UAV body (1). A pressure adaptive fire extinguishing nozzle quick-connect component (4) is provided at the bottom of the fire extinguishing nozzle angle adjustment component (3). A rescue cabin hoisting and lifting component (5) is provided at the middle bottom of the UAV body (1).

2. The heavy-load drone rescue device for fire and rescue according to claim 1, characterized in that: The landing buffer assembly (2) includes two control frames (20), which are fixedly connected to the front and rear sides of the bottom of the landing gear (11). Lifting blocks (21) are slidably connected inside the front and rear control frames (20). Dampers (22) that are fixedly connected to the top of the front and rear lifting blocks (21) are fixedly connected to the top wall of the control frame (20). Buffer plates (23) are fixedly connected to the bottom of the front and rear lifting blocks (21).

3. The heavy-load drone rescue device for fire rescue according to claim 2, characterized in that: A crossbar (24) is fixedly connected to the opposite surfaces of the two control frames (20) at the front and rear. A slider (25) is slidably connected to both the front and rear sides of the outer wall of the crossbar (24). A spring (26) sleeved on the outer wall of the crossbar (24) is fixedly connected to the opposite surfaces of the two sliders (25) at the front and rear. Two connecting rods (27) are rotatably connected to the left and right sides of the two sliders (25) at the front and rear. The top of the upper connecting rod (27) is rotatably connected to the bottom of the landing gear (11), and the bottom of the lower connecting rod (27) is rotatably connected to the top of the buffer plate (23).

4. The heavy-load drone rescue device for fire and rescue according to claim 1, characterized in that: The fire extinguishing nozzle angle adjustment assembly (3) includes a fixing frame (30), which is fixedly connected to the bottom front side of the UAV body (1). A connecting arc plate (31) is fixedly connected to the bottom of the fixing frame (30). A motor (32) is fixedly connected to the rear side of the connecting arc plate (31). The output end of the motor (32) extends through to the front side of the connecting arc plate (31) and is fixedly connected to a rotating arc plate (33). A motor (34) is fixedly connected to the right side of the rotating arc plate (33). The output end of the motor (34) extends through to the left side of the rotating arc plate (33) and is fixedly connected to a fixing block (35).

5. A heavy-load drone rescue device for fire and rescue according to claim 4, characterized in that: The controller (10) is electrically connected to motor one (32) and motor two (34) respectively.

6. The heavy-load drone rescue device for fire rescue according to claim 1, characterized in that: The pressure adaptive fire extinguishing nozzle quick-connect assembly (4) includes a connecting frame (40), which is fixedly connected to the bottom of the fixing block (35). A cylinder (41) is fixedly connected to the top of the connecting frame (40). The telescopic end of the cylinder (41) extends through to the bottom of the connecting frame (40) and is fixedly connected to a moving block (42). A lifting rod (43) with a front-to-back direction is fixedly connected inside the moving block (42). Moving rods (44) are fixedly connected to both the front and rear sides of the lifting rod (43).

7. A heavy-load drone rescue device for fire and rescue according to claim 6, characterized in that: The bottom of the connecting frame (40) is fixedly connected to two symmetrical fixed rods (45) that run in a front-back direction. The outer walls of the two fixed rods (45) are rotatably connected to four rectangularly distributed rotating rods (46). The middle of each of the two rotating rods (46) is rotatably connected to a connecting rod (47) that is rotatably connected to the moving rod (44). The bottom of the opposite surfaces of the two rotating rods (46) is fixedly connected to an arc-shaped clamp (48). The opposite surfaces of the two arc-shaped clamps (48) are fixedly connected to a pressure sensor. The interior of the two arc-shaped clamps (48) holds a fire extinguishing nozzle (49).

8. A heavy-duty drone rescue device for fire and rescue according to claim 7, characterized in that: The controller (10) is electrically connected to the cylinder (41) and two pressure sensors respectively.

9. A heavy-load drone rescue device for fire and rescue according to claim 1, characterized in that: The rescue cabin hoisting and lifting assembly (5) includes a hoist frame (50), which is fixedly connected to the bottom center of the UAV body (1). A motor (51) is fixedly connected to the left side of the hoist frame (50), and hoisting rollers (52) are rotatably connected to the inner walls of the left and right sides of the hoist frame (50). The output end of the motor (51) extends through the interior of the hoist frame (50) and is fixedly connected to the hoisting rollers (52).

10. A heavy-load drone rescue device for fire and rescue according to claim 9, characterized in that: The outer wall of the winch roller (52) is wound with a steel wire rope (53), and four hoisting ropes (54) are fixedly connected to the bottom of the steel wire rope (53). The bottom of the four hoisting ropes (54) is fixedly connected to a rescue cabin (55). The controller (10) is electrically connected to the motor (51).

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