Airborne pump set type foam fire extinguishing device based on unmanned aerial vehicle

Abstract

The invention discloses an unmanned aerial vehicle-based airborne pump set type foam fire extinguishing device, and relates to the technical field of fire extinguishing equipment, the unmanned aerial vehicle-based airborne pump set type foam fire extinguishing device comprises an unmanned aerial vehicle main body, a pump set liquid supply mechanism is fixedly arranged in the middle of the unmanned aerial vehicle main body, a support is arranged below the unmanned aerial vehicle main body, and a gas-liquid mixing foaming assembly is placed at the top end of the support; a spraying gun is fixedly arranged on one side of the gas-liquid mixing foaming assembly, two supporting blocks are symmetrically and fixedly arranged on the surface of the support, and pressing plates are rotationally arranged in the supporting blocks. The device has the beneficial effects that an independent electric pump set constant-pressure liquid supply mode is adopted, closed-loop precise regulation and control are achieved in cooperation with an onboard electric control module, constant-pressure and constant-flow conveying of a fire extinguishing agent is kept in the whole process, and the hidden danger of pressure attenuation is thoroughly eliminated; no matter for low-altitude fire extinguishing operation or high-rise precise fire extinguishing operation, the spraying distance and flow are always stable and controllable, the fire point covering precision is greatly improved, and the fire extinguishing stability is fundamentally guaranteed.

Description

A drone-based airborne pump-type foam fire extinguishing device Technical Field

[0001] This invention relates to a fire extinguishing device, and more particularly to an airborne pump-type foam fire extinguishing device based on a drone, belonging to the technical field of fire extinguishing equipment. Background Technology

[0002] With the widespread application of drone technology in firefighting, airborne fire extinguishing devices have become core equipment for firefighting in high-altitude and remote areas. Currently, most mainstream drone-borne foam fire extinguishing devices on the market adopt a pressurized structure, relying on the storage pressure of the extinguishing agent itself to achieve spraying. In actual combat, there are many technical shortcomings: First, the internal pressure of the pressurized device is affected by the change in the volume of the remaining extinguishing agent, resulting in a continuous decrease in internal pressure, which leads to large fluctuations in spray distance and output flow. It is difficult to accurately cover the fire point when fighting fires in high-rise buildings, and the fire extinguishing stability is insufficient. Second, the extinguishing agent is sprayed directly without undergoing efficient foaming treatment. The 50L specification of extinguishing agent can only achieve undiluted spraying, which limits the fire extinguishing coverage area and reduces combat effectiveness. Third, most existing devices adopt a fixed installation structure, which is complicated and time-consuming to install and dismantle, which is not conducive to rapid on-site replacement, emergency power replenishment, and multi-drone collaborative operation. Summary of the Invention

[0003] The purpose of this invention is to provide an airborne pump-type foam fire extinguishing device based on unmanned aerial vehicles (UAVs) to solve the problems mentioned in the background art: first, the pressure of the storage device continuously decreases, resulting in large fluctuations in the spray distance and flow rate for high-rise fire extinguishing, and insufficient accuracy and stability; second, the 50L specification fire extinguishing agent is not efficiently foamed, resulting in limited coverage and low efficiency of the undiluted spray; and third, the existing devices are fixedly installed, and disassembly and assembly are cumbersome and time-consuming, which is not conducive to rapid replacement, emergency power replenishment, and multi-machine coordination.

[0004] To achieve the above objectives, the present invention provides the following technical solution: an airborne pump-type foam fire extinguishing device based on a drone, comprising a drone body, a pump supply mechanism fixedly disposed in the middle of the drone body, a support below the drone body, a gas-liquid mixing foaming component placed at the top of the support, a spray gun fixedly disposed on one side of the gas-liquid mixing foaming component, two support blocks symmetrically fixedly disposed on the surface of the support, a pressure plate rotatably disposed inside the support blocks, two boxes symmetrically fixedly disposed at the top of the support, a limiting rod for limiting the pressure plate slidably disposed inside the box, a support component disposed inside the box, and a locking seat for engaging with the gas-liquid mixing foaming component fixedly disposed on both sides of the support.

[0005] As a preferred embodiment of the present invention, the pump group liquid supply mechanism adopts an independent electric pump group for constant pressure liquid supply, and the pump group liquid supply mechanism has an internal onboard electronic control module.

[0006] As a preferred embodiment of the present invention, the two sides of the bottom of the drone body are fixedly provided with support legs, the bottom of the support legs is fixedly connected to the top of the bracket, and the bottom of the support legs is fixedly provided with two support pads.

[0007] As a preferred embodiment of the present invention, the bottom end of the pump supply mechanism is fixedly provided with a connecting hose, and the top end of the gas-liquid mixing foaming component is fixedly provided with an installation head that connects and cooperates with the connecting hose.

[0008] As a preferred embodiment of the present invention, a lever is fixedly provided on the top of one side of the pressing plate, and a protective pad is fixedly provided on the inner wall of the pressing plate.

[0009] As a preferred embodiment of the present invention, the support component includes a slider, which is slidably disposed inside the box, and one side of the slider is fixedly connected to one end of a limiting rod.

[0010] As a preferred embodiment of the present invention, a pull rod is fixedly provided on the other side of the slider, a spring is sleeved on the surface of the pull rod, and one end of the pull rod passes through the box body and is fixedly connected to a pull cap provided on the outside of the box body.

[0011] As a preferred embodiment of the present invention, one end of the spring is fixedly connected to one side of the slider, and the other end is fixedly connected to the inner wall of the box.

[0012] Compared with related technologies, the airborne pump-type foam fire extinguishing device based on a drone provided by this invention has the following beneficial effects: This device adopts an independent electric pump group constant pressure liquid supply mode, and works with the airborne electronic control module to achieve closed-loop precise control, maintaining constant pressure and constant flow delivery of the extinguishing agent throughout the process, completely eliminating the hidden danger of pressure decay; whether it is low-altitude fire fighting or high-rise precision fire fighting operations, the spray distance and flow rate are always stable and controllable, the accuracy of fire point coverage is greatly improved, and the stability of fire extinguishing is fundamentally guaranteed; This device innovatively adopts air foam mixing and synergistic technology, which can efficiently foam 50L of extinguishing agent into 300L of foam liquid, achieving a 6-fold increase in the volume of the extinguishing agent; foaming The coverage area of ​​the foam liquid increases exponentially, significantly upgrading the firefighting range and fire suppression capabilities of a single drone sortie. With the same amount of extinguishing agent, the combat effectiveness is greatly enhanced, effectively increasing the success rate of a single flight for firefighting. This device, through the coordinated operation of support blocks, clamping plates, limit rods, mounting brackets, and elastic support components, creates a tool-free, quick-installation and fastening structure. A single person can complete the positioning, locking, and disassembly of the gas-liquid mixing foaming components. The elastic self-locking structure ensures that the components remain secure and stable during high-altitude flight, significantly shortening the time required for on-site equipment replacement and emergency energy replenishment, while also meeting the rapid deployment needs of multi-drone collaborative operations. Overall airborne operational stability and emergency response efficiency are simultaneously improved. Attached Figure Description

[0013] Figure 1 is a structural schematic diagram of the present invention; Figure 2 is an exploded structural schematic diagram of the main body of the UAV of the present invention; Figure 3 is a structural schematic diagram of the bracket of the present invention; Figure 4 is an exploded structural schematic diagram of the bracket of the present invention; Figure 5 is an exploded structural schematic diagram of the box body of the present invention; Figure 6 is a structural schematic diagram of the connecting hose of the present invention.

[0014] In the diagram: 1. UAV main body; 2. Pump supply mechanism; 3. Bracket; 4. Gas-liquid mixing foaming component; 5. Spray gun; 6. Support block; 7. Pressure plate; 8. Box body; 9. Limiting rod; 10. Card seat; 11. Support component; 1101. Slider; 1102. Pull rod; 1103. Spring; 1104. Pull cap; 12. Connecting hose; 13. Support pad; 14. Support leg bracket; 15. Mounting head; 16. Pulley. Detailed Implementation

[0015] 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.

[0016] Please refer to Figures 1-6. This invention provides an airborne pump-type foam fire extinguishing device based on a drone, including a drone body 1. A pump supply mechanism 2 is fixedly installed in the middle of the drone body 1. A support 3 is installed below the drone body 1. A gas-liquid mixing foaming component 4 is placed at the top of the support 3. A spray gun 5 is fixedly installed on one side of the gas-liquid mixing foaming component 4. Two support blocks 6 are symmetrically fixedly installed on the surface of the support 3. A pressure plate 7 is rotatably installed inside the support blocks 6. Two boxes 8 are symmetrically fixedly installed at the top of the support 3. A limiting rod 9 that limits the pressure plate 7 is slidably installed inside the box 8. A support component 11 is installed inside the box 8. A locking seat 1 that engages with the gas-liquid mixing foaming component 4 is fixedly installed on both sides of the support 3. 0; By adopting air foam mixing and enhancement technology, 50L of extinguishing agent can be foamed to generate 300L of foam liquid, significantly improving the fire extinguishing coverage and single-flight combat capability; The constant pressure liquid supply mode of the pump group ensures stable spray distance and flow rate throughout the process, making it suitable for high-rise precision fire extinguishing operations; The pump group liquid supply mechanism 2 is fixed in the middle of the main body 1 of the UAV, and the bracket 3 carries the gas-liquid mixing foam component 4. By using the cooperation of the support block 6, the clamping plate 7, the limiting rod 9 and the card seat 10, the gas-liquid mixing foam component 4 can be quickly positioned and fastened. No special tools are required for disassembly and assembly, and a single person can complete the assembly and disassembly, which greatly shortens the time spent on fire scene replacement, while ensuring that the component does not loosen or shift under high-altitude flight conditions, improving the stability of airborne operations.

[0017] The pump supply mechanism 2 adopts an independent electric pump set for constant pressure liquid supply, and has an internal onboard electronic control module. The pump supply mechanism 2 adopts an independent electric pump set for constant pressure liquid supply, and, in conjunction with the internal onboard electronic control module, precisely regulates the pump speed through electronic control closed loop to achieve constant pressure and constant flow delivery of extinguishing agent, completely eliminating the drawbacks of pressure attenuation in stored-pressure liquid supply.

[0018] The support assembly 11 includes a slider 1101, which is slidably disposed inside the box 8. One side of the slider 1101 is fixedly connected to one end of the limiting rod 9. A pull rod 1102 is fixedly disposed on the other side of the slider 1101. A spring 1103 is sleeved on the surface of the pull rod 1102. One end of the pull rod 1102 passes through the box 8 and is fixedly connected to a pull cap 1104 disposed on the outside of the box 8. One end of the spring 1103 is fixedly connected to one side of the slider 1101, and the other end is fixedly connected to the inner wall of the box 8. The spring 1103 elastically pushes the slider 1101, thereby driving the limiting rod 9 to automatically limit and lock the pressure plate 7, eliminating the need for cumbersome manual fixing. Pulling the pull cap 1104 will cause the pull rod 1102 and the slider 1101 to retract, releasing the constraint of the limiting rod 9 on the pressure plate 7, achieving quick unlocking. The elastic self-locking structure has strong stability and is not easy to loosen, greatly improving the efficiency of disassembly and assembly.

[0019] Support legs 14 are fixedly installed on both sides of the bottom of the drone body 1. The bottom of the support legs 14 is fixedly connected to the top of the bracket 3. Two support pads 13 are fixedly installed on the bottom of the support legs 14. The support legs 14 are fixedly installed on both sides of the bottom of the drone body 1. The bottom of the support legs 14 is fixedly connected to the bracket 3. Together with the two support pads 13 at the bottom, a stable airborne support system is formed, which evenly distributes the weight of the device and avoids local stress concentration that could damage the drone body 1. At the same time, it improves the flight balance after the device is mounted.

[0020] The bottom end of the pump supply mechanism 2 is fixedly provided with a connecting hose 12, and the top end of the gas-liquid mixing foaming component 4 is fixedly provided with an installation head 15 that connects and cooperates with the connecting hose 12. Through the quick docking of the connecting hose 12 and the installation head 15, the fire extinguishing agent is delivered in a closed manner. The docking is convenient and the sealing performance is excellent, which avoids the leakage of the fire extinguishing agent. At the same time, it is compatible with the disassembly and relocation of the gas-liquid mixing foaming component 4 to ensure that the liquid supply path is unobstructed.

[0021] A lever 16 is fixedly provided on the top of one side of the clamping plate 7, and a protective pad is fixedly provided on the inner wall of the clamping plate 7. The lever 16 makes it easy to open and close the clamping plate 7 by moving it, making the operation more labor-saving. The protective pad can prevent the clamping plate 7 from rigidly contacting the gas-liquid mixing foaming component 4, preventing scratches and damage to the surface of the component, while increasing the friction, further improving the fastening stability, and preventing the component from slipping off during high-altitude operations.

[0022] In use, first, place the gas-liquid mixing foaming component 4 stably on the top of the support 3, so that the two sides of the gas-liquid mixing foaming component 4 are precisely engaged with the card seats 10 fixed on both sides of the support 3, completing the initial positioning; then, move the lever 16 on the top of the pressing plate 7, causing the pressing plate 7, which is rotated inside the support block 6, to press down and fit against the outer wall of the gas-liquid mixing foaming component 4; in the support component 11 inside the box body 8, the spring 1103 continuously and elastically pushes the slider 1101, causing the limiting rod 9 fixed on one side of the slider 1101 to slide outward, using the limiting rod 9 to automatically limit and lock the pressing plate 7 after it is pressed down, realizing the rapid fastening of the gas-liquid mixing foaming component 4; the inner wall of the pressing plate 7 is protected against The protective pad is synchronously attached to the outer wall of the component to avoid rigid contact that could scratch the component surface, while increasing friction to prevent the component from slipping during high-altitude operations. Next, the connecting hose 12 at the bottom of the pump supply mechanism 2 is quickly connected to the mounting head 15 at the top of the gas-liquid mixing foaming component 4 to form a sealed liquid supply path, preventing extinguishing agent leakage and accommodating the disassembly and relocation of the gas-liquid mixing foaming component 4 to ensure unobstructed liquid supply. After assembly, the drone body 1 and the pump supply mechanism 2 are activated to carry out high-altitude firefighting operations. The pump supply mechanism 2 adopts an independent electric pump constant pressure liquid supply mode. After activation, its internal onboard electronic control module starts, precisely controlling the pump speed through an electronic control closed loop. The extinguishing agent is delivered under constant pressure and flow, completely eliminating the pressure decay drawbacks of pressurized liquid supply systems. This ensures stable and controllable spray distance and flow rate of the spray gun 5 throughout the entire process, making it suitable for precise fire suppression operations in high-rise buildings. The extinguishing agent is delivered to the gas-liquid mixing foaming assembly 4 via the connecting hose 12 and installation head 15. The device employs air-foam mixing and enhancement technology to efficiently foam 50L of extinguishing agent into 300L of foam liquid. The expanded foam liquid is then precisely sprayed onto the fire point through the spray gun 5, significantly expanding the fire suppression coverage and enhancing single-flight combat capability. During flight, the elastic self-locking structure composed of the limit rod 9 and spring 1103 continuously locks the pressure plate 7, cooperating with the locking and limiting action of the mounting bracket 10 to ensure... The gas-liquid mixing foam component 4 remains stable and without displacement during high-altitude flight, ensuring stability throughout the airborne operation. After the final operation is completed, pull the cap 1104 on the outside of the box 8 to retract the pull rod 1102 and the slider 1101 into the box 8, simultaneously compressing the spring 1103 and releasing the limiting rod 9 from the limiting constraint on the pressure plate 7. Move the lever 16 to flip the pressure plate 7 upwards, detaching it from the outer wall of the gas-liquid mixing foam component 4. Separate the gas-liquid mixing foam component 4 from the bracket 10 and disconnect the connection hose 12 from the installation head 15 to complete the component disassembly. The entire process is quick and suitable for rapid replacement, emergency power replenishment, and multi-aircraft collaborative operations at fire scenes.

[0023] 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. An airborne pump-type foam fire extinguishing device based on a drone, comprising a drone body (1), characterized in that, A pump supply mechanism (2) is fixedly provided in the middle of the main body (1) of the drone. A bracket (3) is provided below the main body (1). A gas-liquid mixing foaming component (4) is placed at the top of the bracket (3). A spray gun (5) is fixedly provided on one side of the gas-liquid mixing foaming component (4). Two support blocks (6) are symmetrically fixed on the surface of the bracket (3). A pressure plate (7) is rotatably provided inside the support block (6). Two boxes (8) are symmetrically fixed at the top of the bracket (3). A limiting rod (9) for limiting the pressure plate (7) is slidably provided inside the box (8). A support component (11) is provided inside the box (8). A card seat (10) that engages with the gas-liquid mixing foaming component (4) is fixedly provided on both sides of the bracket (3).

2. The airborne pump-type foam fire extinguishing device based on a drone according to claim 1, characterized in that: The pump group liquid supply mechanism (2) adopts an independent electric pump group for constant pressure liquid supply, and the pump group liquid supply mechanism (2) has an internal airborne electrical control module.

3. The airborne pump-type foam fire extinguishing device based on a drone according to claim 1, characterized in that: The two sides of the bottom of the main body (1) of the drone are fixedly provided with support legs (14). The bottom of the support legs (14) is fixedly connected to the top of the bracket (3). The bottom of the support legs (14) is fixedly provided with two support pads (13).

4. The airborne pump-type foam fire extinguishing device based on a drone according to claim 1, characterized in that: The bottom end of the pump supply mechanism (2) is fixedly provided with a connecting hose (12), and the top end of the gas-liquid mixing foaming component (4) is fixedly provided with an installation head (15) that connects and cooperates with the connecting hose (12).

5. The airborne pump-type foam fire extinguishing device based on a drone according to claim 1, characterized in that: A lever plate (16) is fixedly provided on the top of one side of the pressing plate (7), and a protective pad is fixedly provided on the inner wall of the pressing plate (7).

6. The airborne pump-type foam fire extinguishing device based on a drone according to claim 1, characterized in that: The support assembly (11) includes a slider (1101), which is slidably disposed inside the box (8), and one side of the slider (1101) is fixedly connected to one end of the limiting rod (9).

7. The airborne pump-type foam fire extinguishing device based on a drone according to claim 6, characterized in that: A pull rod (1102) is fixedly provided on the other side of the slider (1101). A spring (1103) is sleeved on the surface of the pull rod (1102). One end of the pull rod (1102) passes through the box body (8) and is fixedly connected to the pull cap (1104) provided on the outside of the box body (8).

8. The airborne pump-type foam fire extinguishing device based on a drone according to claim 7, characterized in that: One end of the spring (1103) is fixedly connected to one side of the slider (1101), and the other end is fixedly connected to the inner wall of the box (8).

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