Wall-mounted fire rescue ducted aircraft

Abstract

The invention discloses a wall-mounted fire rescue ducted aircraft, and belongs to the technical field of fire aircrafts, the wall-mounted fire rescue ducted aircraft comprises a skeleton, four symmetrically arranged electric ducts, a cross duct fixing frame connected with the electric ducts, a power supply in the center of the fixing frame, and an outer side U-shaped longitudinal beam, the U-shaped longitudinal beam is provided with a window breaker and a handrail, and the U-shaped longitudinal beam is connected with a U-shaped cross beam; the U-shaped cross beam is connected with a slow descending life-saving device in a hung mode and further provided with a life-saving hanging basket and an optional quick-release fire extinguishing assembly in a matched mode. During working, the aircraft flies to a target floor, the U-like longitudinal beam is hung on the outer wall of a building, the fire extinguishing assembly is used for extinguishing fire according to needs, trapped persons enter the lifesaving hanging basket through the handrail, the slow descending lifesaving device controls the speed to enable the trapped persons to stably land, and the lifesaving hanging basket can be recycled and reused. The device does not need power after hooking, is suitable for fire rescue scenes where high-rise buildings and rescue vehicles are difficult to reach, and is efficient and safe in rescue.

Description

Technical Field

[0001] This invention relates to the field of firefighting aircraft technology, and in particular to a wall-mounted fire rescue ducted aircraft. Background Technology

[0002] In the field of fire and rescue, aircraft have gradually replaced some traditional rescue equipment due to their advantages of flexibility, maneuverability, and the ability to enter dangerous areas without personnel. However, existing fire and rescue aircraft still have many technical shortcomings, making it difficult to meet the rescue needs of complex fire scenarios: Insufficient flight stability and close approach capability: Existing firefighting helicopters and multi-rotor firefighting aircraft all adopt an exposed rotor design. In severe weather conditions such as strong winds, heavy rain, and fog and haze that are common at fire scenes, the rotor is easily affected by airflow, resulting in poor flight stability and low visibility. Not only is it impossible to accurately locate rescue points, but it may also cause secondary disasters due to loss of attitude control. At the same time, the structural characteristics of exposed rotors make it impossible for them to approach or get close to burning buildings, making it difficult to carry out window-side rescue operations directly.

[0003] Poor scene adaptability and limited endurance: Traditional ducted manned fire rescue aircraft are designed to be large in size to meet the load requirements of personnel, making them unable to enter enclosed or narrow areas such as residential building corridors and shopping mall passages; moreover, these aircraft rely on large-capacity batteries or cable tethers for power supply - large-capacity batteries increase the weight of the aircraft and shorten the single flight time, requiring multiple aircraft to rotate to ensure the continuity of rescue operations, which seriously restricts rescue efficiency; cable tethers restrict the range of movement of the aircraft, and cable entanglement is prone to occur in scenarios such as the exterior walls of high-rise buildings and complex building complexes, making it impossible to quickly reach the rescue point.

[0004] Insufficient rescue efficiency and safety: In traditional fire rescue, using water hoses to extinguish fires requires going through processes such as "connecting the water source - laying the water hose - adjusting the water pressure", and the preparation work alone takes 5-10 minutes. Meanwhile, the fire spreads quickly, and it is easy to miss the best time to extinguish the fire. At the same time, manned aircraft need to be designed with impact-resistant and high-temperature-resistant passenger cabins, which not only increases the complexity of the fuselage, but may also cause secondary injuries to the people inside the cabin due to flight attitude swaying and sudden failures.

[0005] In view of the shortcomings of the existing technologies, there is an urgent need for a fire rescue aircraft with high stability, strong scene adaptability, long endurance and high rescue efficiency to solve the current fire rescue problems in high-rise buildings and complex scenarios. Summary of the Invention

[0006] The purpose of this invention is to provide a wall-mounted fire rescue ducted aircraft with high stability, strong scene adaptability, long endurance and high rescue efficiency.

[0007] To achieve the above objectives, the present invention provides a wall-mounted fire rescue ducted aircraft, including a frame as the load-bearing foundation for the entire machine; Electric ducts are symmetrically arranged on the frame. The electric ducts are fixed by cross-shaped duct fixing brackets. Each electric duct is equipped with a fan and a heading control grid at the bottom. The fan is used to provide lift for flight, and the heading control grid is used to adjust the flight direction and attitude. The power supply is located on the cross-shaped fixing frame and is electrically connected to the electric duct to provide electrical energy. U-shaped longitudinal beams are symmetrically arranged on the outside of the frame and are used to attach the aircraft to the exterior wall of the building to form a rescue platform. A window breaker, symmetrically arranged on the U-shaped longitudinal beam, is used to break the glass of the building's exterior walls; A slow-descent life-saving device is symmetrically arranged on the aforementioned U-shaped longitudinal beam; A rescue basket, adapted to the slow-descent rescue device, is used to carry trapped personnel, and the slow-descent rescue device is used to control the stable descent of the rescue basket.

[0008] Preferably, the electric ducts are symmetrically distributed at the four corners of the frame, and the axes of the electric ducts are all perpendicular to the plane containing the upper surface of the frame.

[0009] Preferably, the power supply is built into the area enclosed by the electric duct, and the power supply is also electrically connected to the slow-descent life-saving device.

[0010] Preferably, the U-shaped longitudinal beams are vertically fixed to the outside of the frame, and handrails are fixed to the top of each U-shaped longitudinal beam. The handrails extend away from the frame and are used for trapped personnel to grab onto and enter the rescue basket.

[0011] Preferably, a U-shaped crossbeam parallel to the frame is connected to the U-shaped longitudinal beam, and the slow-descent rescue device is hung on the side of the U-shaped crossbeam near the window breaker; the slow-descent rescue device is equipped with a retrieval mechanism, which is a power-driven winding assembly or a handwheel winding assembly, and the rescue basket is connected to the slow-descent rescue device by a rope, which is used to retrieve the rescue basket to the initial position to achieve multiple rescues.

[0012] Preferably, it also includes a detachable fire extinguishing component, which is detachably connected to the center of the upper surface of the duct fixing frame via a vertically arranged fire extinguishing component support frame. The fire extinguishing component is a fire extinguishing projectile launcher or a water spray hose.

[0013] Preferably, it also includes a control component, which includes a real-time camera module at the front and a remote control receiving module. The real-time camera module at the front is fixed to the top of the fire extinguishing component support frame and is used to guide the hanging operation of the U-shaped longitudinal beam and the window breaking operation of the window breaker. The remote control receiving module is electrically connected to the electric duct and the slow-descent rescue device and is used to receive ground remote control commands to control the operation of each component.

[0014] Preferably, the control component further includes an attitude sensor, which is symmetrically fixed to the upper surface of the duct fixing frame and the remote control receiving module, and is symmetrically arranged on both sides of the fire extinguishing component support frame, for real-time monitoring of the aircraft's flight attitude and stability after attachment, and feeding the monitoring data back to the ground control terminal.

[0015] Therefore, the present invention employs the above-mentioned wall-mounted fire rescue ducted aircraft, which has the following technical effects: (1) The present invention adopts a symmetrical layout of four high-performance electric ducts. The duct structure can effectively resist the interference of turbulent flow and high-temperature rising airflow at the fire scene, and ensure flight stability. With the hanging function of the U-shaped longitudinal beam, the aircraft can directly approach the windowsill or balcony edge of the fire building and fix it, which solves the problem that traditional aircraft cannot approach the burning building.

[0016] (2) The wall-mounted fixed design of the present invention eliminates the need for power maintenance after the aircraft is attached to the wall, thus getting rid of the dependence of traditional aircraft on large-capacity batteries or cables; the fuselage is made of lightweight and high-strength materials and has a compact structure, which can flexibly shuttle through complex scenarios such as narrow corridors and the exterior walls of high-rise buildings, thus improving adaptability.

[0017] (3) The quick-disassembly fire extinguishing components of this invention save preparation time in the entire fire extinguishing process compared with traditional water hose fire extinguishing, effectively preventing the spread of fire; the non-manned design simplifies the fuselage structure and avoids the risk of secondary injury to personnel during manned flight; the combination of the slow-descent rescue device and the handrail ensures that trapped personnel can evacuate safely and conveniently.

[0018] (4) The recovery mechanism of the rescue basket of the present invention can realize the reuse of the basket, meet the needs of multiple rescues, and eliminate the need to frequently change the aircraft, greatly improving the rescue efficiency. It is especially suitable for fire scenarios in densely populated residential buildings and shopping malls.

[0019] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0020] Figure 1 This is a structural schematic diagram of a wall-mounted fire rescue ducted aircraft according to the present invention; Figure 2 This is a side view of a wall-mounted fire rescue ducted aircraft according to the present invention; Figure 3 This is a bottom view of a wall-mounted fire rescue ducted aircraft according to the present invention; Figure 4 This is a top view of a wall-mounted fire rescue ducted aircraft according to the present invention.

[0021] Figure Labels 1. Frame; 2. Electric duct; 21. Fan; 22. Control grille; 23. Duct fixing frame; 3. Power supply; 4. U-shaped longitudinal beam; 5. Window breaker; 6. Handrail; 7. U-shaped crossbeam; 8. Slow-descent rescue device; 9. Rescue basket; 10. Fire extinguishing assembly; 101. Fire extinguishing assembly support frame; 11. Building exterior wall; 12. Camera; 13. Remote control receiver module; 14. Attitude sensor. Detailed Implementation

[0022] The technical solution of the present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] Unless otherwise defined, the technical or scientific terms used in this invention shall have the ordinary meaning understood by one of ordinary skill in the art to which this invention pertains. The terms "first," "second," and similar terms used in this invention do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0024] like Figures 1 to 4 As shown, a wall-mounted fire rescue ducted aircraft includes a frame 1, four electric ducts 2, a power supply 3, two U-shaped longitudinal beams 4, two window breakers 5, two slow-descent rescue devices 8, and two rescue baskets 9. It can also be optionally equipped with quick-disassembly fire extinguishing components 10 and control components.

[0025] The frame 1 serves as the load-bearing foundation for the entire machine. It is made of carbon fiber composite material, which is lightweight and high-strength. This reduces the machine's weight while ensuring load-bearing capacity. It is used to load the electric duct 2, power supply 3, slow-descent rescue device 8, and other rescue auxiliary components. Its structure ensures that the components are evenly distributed, thus maintaining the stability of the machine's center of gravity.

[0026] Four electric ducts 2 are symmetrically distributed at the four corners of the lightweight high-strength frame 1 and are fixedly connected by a cross-shaped duct fixing bracket 23. The axis of each electric duct 2 is perpendicular to the plane on the upper surface of the frame 1. Each electric duct 2 is equipped with a fan 21 and a heading control grille 22 at the bottom. The high-speed rotation of the fan 21 can provide the lift required for the aircraft to fly. The heading control grille 22 can achieve precise control of the aircraft's flight direction and attitude by adjusting the airflow direction. The duct structure can also reduce the interference of turbulence at the fire scene on flight stability and ensure that the aircraft can safely approach the fire building.

[0027] The power supply 3 is built into the area enclosed by four electric ducts 2 in the duct fixing frame 23, which avoids flight attitude imbalance caused by the position displacement of the power supply 3. The power supply 3 is electrically connected to the electric duct 2, the slow descent life-saving device 8 and the control components, respectively, to provide stable power to each electrical component. Compared with traditional large-capacity batteries, the power supply 3 does not require a lot of extra space and is free from the constraints of cable tethering, which greatly improves the mobility of the aircraft.

[0028] Two U-shaped longitudinal beams 4 are vertically fixed to the outside of the frame 1. They are made of high-strength aluminum alloy, which balances strength and lightness. Their shape is similar to U and the ends are straight, serving as fixed grips for the aircraft. When the aircraft flies to the window of the target rescue floor, the U-shaped longitudinal beams 4 can be engaged with the window sill or edge of the building's exterior wall 11 to fix the entire machine to the wall, forming a temporary rescue platform that does not require power. The top of the two U-shaped longitudinal beams 4 are also fixed with handrails 6. The handrails 6 extend away from the frame 1, allowing trapped personnel to grab on and easily enter the rescue basket 9, which is especially suitable for the elderly, children and other people with mobility difficulties.

[0029] Two window breakers 5 are fixed to the top of two U-shaped longitudinal beams 4 respectively. Their tips are made of tungsten carbide, which has high hardness and can break windows quickly. When the windows of the room where the trapped person is located are closed, the window breakers 5 can directly pierce the glass and open up the rescue channel without the need to carry additional window breaking tools, thus shortening the rescue preparation time.

[0030] Two U-shaped longitudinal beams 4 are connected to U-shaped transverse beams 7 parallel to the frame 1. Two slow-descent rescue devices 8 are respectively hung on the side of the U-shaped transverse beams 7 near the window breaker 5. The slow-descent rescue devices 8 are existing mature lightweight products with controllable speed. Two rescue baskets 9 are adapted to the two slow-descent rescue devices 8 and connected by ropes to carry trapped personnel. The slow-descent rescue devices 8 are equipped with a retrieval mechanism, which is a power-driven winding assembly or a handwheel winding assembly. After the trapped personnel fasten the safety belt of the slow-descent rescue device 8 and enter the rescue basket 9, the slow-descent rescue device 8 can control the basket to descend to the ground at a stable and controllable speed to avoid the risk of personnel falling. After a single rescue is completed, the basket can be retrieved to the initial position through the retrieval mechanism to achieve continuous rescue of multiple people.

[0031] The fire extinguishing component 10 is detached and connected to the center of the upper surface of the duct fixing frame 23 via the fire extinguishing component support frame 101. It can be selected as a fire extinguishing grenade launcher or a fire sprinkler hose. If there is an open flame around the trapped personnel, the fire extinguishing grenade launcher can be assembled within tens of seconds. By launching fire extinguishing grenades, preferably dry powder fire extinguishing grenades, they can instantly spread and cover the fire source after being thrown, suppressing the local fire and opening a safe passage for personnel evacuation. If continuous fire extinguishing is required, a fire sprinkler hose can be assembled and connected to a water source. After the aircraft is fixed to the wall by the U-shaped longitudinal beam 4, the water spraying operation is not limited by the flight time and does not require maintaining flight power.

[0032] The control components include a real-time camera module at the nose, a remote control receiver module 13, and an attitude sensor 14. The real-time camera module at the nose is a camera 12, fixed to the top of the fire extinguishing component support frame 101, used to transmit images of the rescue site in real time and guide the hooking operation of the U-shaped longitudinal beam 4 and the window breaking operation of the window breaker 5. The remote control receiver module 13 is electrically connected to the electric duct 2, the window breaker 5, the slow descent rescue device 8, and the fire extinguishing component 10, used to receive ground remote control commands and control each component to perform corresponding actions—hooking, window breaking, fire extinguishing, slow descent, and other operations can be automatically executed or manually remotely controlled from the ground through this module. The attitude sensor 14 is symmetrically fixed to the upper surface of the duct fixing frame 23 and symmetrically arranged on both sides of the fire extinguishing component support frame 101, used to monitor the flight attitude of the aircraft and the stability after hooking in real time, and to feed the monitoring data back to the ground control terminal to ensure that the rescue process is safe and controllable.

[0033] Working principle: Equipment preparation and flight arrival Based on the fire situation, on-site rescue personnel completed the assembly of the aircraft on the ground: connecting the power supply 3 to the four electric ducts 2 and the control components, assembling the quick-detachable fire extinguishing gun (if there is an open flame indoors), and checking the status of the window breaker 5, the slow-descent rescue device 8, and the rescue basket 9.

[0034] Before takeoff, the initial trim process is initiated: the intermediate control unit has a built-in weight sensor and center of gravity detection unit to automatically identify the load status (such as whether a fire extinguishing bomb compartment is installed and the number of slow-descent life-saving devices 8). If the installation of fire extinguishing bombs causes the center of gravity to shift towards the fire extinguishing bomb compartment, the control unit will automatically increase the rotational speed of the duct on the fire extinguishing bomb compartment side to make the aircraft bottom surface parallel to the horizontal plane, avoiding tilting due to the shift in the center of gravity during takeoff.

[0035] After the aircraft is started, flight commands are sent via the ground control terminal: Vertical direction (lifting): The four ducted fans 21 simultaneously raise or lower their speeds. When rising, the speeds of the four ducted fans 21 increase simultaneously, and the control grille 22 remains vertically fully open, increasing the effective flow area of ​​the airflow at the duct outlet. The overall lift is greater than the total weight of the device (including fire extinguishing bombs, life-saving devices, and other loads), and the device rises smoothly and vertically. When descending, the speeds decrease simultaneously. If disturbances occur, diagonal duct differential speed regulation is used.

[0036] Horizontal (forward, backward, left, and right): The strategy employs "diagonal ducted fan differential speed regulation as the primary method, supplemented by directional control grid 22." When flying forward, the two rear ducted fans 21 increase their speed, while the two front ducted fans 21 decrease their speed, causing the aircraft to tilt. Subsequently, all four ducted fans 21 maintain the same speed, generating forward thrust. Simultaneously, the control grids 22 of the four ducted fans in the direction perpendicular to the forward direction deflect backward in sync, while the control grids 22 in the same direction remain vertical. By changing the airflow exit direction, thrust is increased, improving response speed. When flying left, the two right ducted fans 21 increase their speed, while the two left ducted fans 21 decrease their speed, causing the aircraft to tilt. Subsequently, all four ducted fans 21 maintain the same speed, generating leftward thrust, combined with directional assistance from the directional control grid 22.

[0037] During flight, the top-mounted high-definition camera 12 captures real-time features of the building facade, such as windows and floor markings. The images are transmitted to the ground control unit with low latency via a signal communication link. Rescue personnel can use relative height references in the images, such as window positions and floor lines, to help determine the vertical distance between the drone and the target floor, accurately locating the target rescue floor. Simultaneously, the control components contain sensors such as a three-axis gyroscope and a three-axis accelerometer. Based on sensor data, the PID algorithm in the intermediate control module quickly corrects the aircraft's state: if a sudden strong wind causes yaw, such as a rightward yaw, the system increases the speed of the right ducted fan 21 and decreases the speed of the left ducted fan 21, while simultaneously adjusting the heading control grid 22 to correct the yaw angle to a safe range, ensuring stable flight even in outdoor gusts of wind, ultimately reaching the window of the burning room.

[0038] Broken window and hanging After the aircraft arrives outside the window, the ground control terminal controls the window breaker 5 at the top of the U-shaped longitudinal beam 4 via the remote control receiver module 13. The tungsten carbide tip quickly pierces the closed window glass, opening a rescue passage. Subsequently, the remote-controlled U-shaped longitudinal beam 4 engages with the window sill edge of the building's exterior wall 11. After the attitude sensor 14 confirms a secure connection, the electric duct 2 is controlled to stop working, entering a powerless rescue mode to conserve power for subsequent return. At this time, the aircraft is fixed to the building's exterior wall 11 via the U-shaped longitudinal beam 4, forming a stable temporary rescue platform.

[0039] Firefighting and personnel evacuation preparation The ground control terminal controls the fire extinguishing gun to fire dry powder fire extinguishing bombs at the open flame area indoors, suppressing the local fire and creating a safe evacuation route for trapped personnel. If continuous firefighting is required, fire hoses can be installed and connected to a water source. Taking advantage of the wall-mounted design, water spraying operations are not limited by flight time. After the fire is under control, trapped personnel, guided by remote voice and video from rescuers, use the handrails 6 at the top of the U-shaped longitudinal beam 4 for support and enter the rescue platform one by one. They then fasten the safety belts of the slow-descent rescue device 8 and sit in the rescue basket 9.

[0040] Personnel descent and basket recovery After the trapped personnel enter the gondola, the ground control terminal activates the slow-descent rescue device 8, and the gondola descends to the ground at a stable speed. Ground personnel then unfasten their safety belts. Subsequently, the empty gondola is retracted to its initial position via the power-driven winding assembly or handwheel winding assembly of the rescue gondola 9. This process is repeated to safely bring the remaining trapped personnel to the ground. After all personnel have evacuated, the electric duct 2 is activated, controlling the U-shaped longitudinal beam 4 of the aircraft to detach from the window sill, and the aircraft returns to the ground recovery point.

[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the technical solutions of the present invention, and these modifications or equivalent substitutions cannot cause the modified technical solutions to deviate from the spirit and scope of the technical solutions of the present invention.

Claims

1. A wall-mounted fire rescue ducted aerial vehicle, characterized in that: Including the frame, which serves as the foundation for the entire machine's load-bearing structure; Electric ducts are symmetrically arranged on the frame. The electric ducts are fixed by cross-shaped duct fixing brackets. Each electric duct is equipped with a fan and a heading control grid at the bottom. The fan is used to provide lift for flight, and the heading control grid is used to adjust the flight direction and attitude. The power supply is located inside the culvert fixing frame and is electrically connected to the electric culvert to provide electrical energy. U-shaped longitudinal beams are symmetrically arranged on the outside of the frame and are used to attach the aircraft to the exterior wall of the building to form a rescue platform. A window breaker, symmetrically arranged on the U-shaped longitudinal beam, is used to break the glass of the building's exterior walls; A slow-descent life-saving device is symmetrically arranged on the aforementioned U-shaped longitudinal beam; A rescue basket, adapted to the slow-descent rescue device, is used to carry trapped personnel, and the slow-descent rescue device is used to control the stable descent of the rescue basket.

2. The wall-mounted fire rescue ducted aircraft according to claim 1, characterized in that: The electric ducts are symmetrically distributed at the four corners of the frame, and the axes of the electric ducts are all perpendicular to the plane containing the upper surface of the frame.

3. The wall-mounted fire rescue ducted aircraft according to claim 1, characterized in that: The power supply is built into the area enclosed by the electric duct in the duct fixing frame, and the power supply is also electrically connected to the slow-descent life-saving device.

4. The wall-mounted fire rescue ducted aircraft according to claim 1, characterized in that: The U-shaped longitudinal beams are vertically fixed to the outside of the frame, and handrails are fixed to the top of the U-shaped longitudinal beams respectively. The handrails extend away from the frame and are used for trapped personnel to grab onto and enter the rescue basket.

5. A wall-mounted fire rescue ducted aircraft according to claim 1, characterized in that: The U-shaped longitudinal beam is connected to a U-shaped crossbeam parallel to the frame. The slow-descent rescue device is hung on the side of the U-shaped crossbeam near the window breaker. The slow-descent rescue device is equipped with a retrieval mechanism, which is a power-driven winding assembly or a handwheel winding assembly. The rescue basket is connected to the slow-descent rescue device by a rope, which is used to retrieve the rescue basket to the initial position to achieve multiple rescues.

6. The wall-mounted fire rescue ducted aircraft according to claim 1, characterized in that: It also includes a detachable fire extinguishing component, which is detachably connected to the center of the upper surface of the duct fixing frame via a vertically set fire extinguishing component support frame. The fire extinguishing component is a fire extinguishing projectile launcher or a water spray hose.

7. A wall-mounted fire rescue ducted aircraft according to claim 6, characterized in that: It also includes a control component, which includes a real-time camera module at the front and a remote control receiving module. The real-time camera module at the front is fixed to the top of the fire extinguishing component support frame and is used to guide the hanging operation of the U-shaped longitudinal beam and the window breaking operation of the window breaker. The remote control receiving module is electrically connected to the electric duct and the slow-descent rescue device and is used to receive ground remote control commands to control the operation of each component.

8. A wall-mounted fire rescue ducted aircraft according to claim 7, characterized in that: The control component also includes an attitude sensor, which is symmetrically fixed to the upper surface of the duct fixing frame and symmetrically arranged on both sides of the fire extinguishing component support frame. It is used to monitor the flight attitude of the aircraft and its stable state after being attached in real time, and to feed the monitoring data back to the ground control terminal.

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