Forest unmanned fire truck

By designing a water replenishment mechanism on the forest drone fire truck, the water tank can be quickly replaced and replenished, solving the problem of long replenishment time in existing technologies and improving fire extinguishing efficiency.

CN224585235UActive Publication Date: 2026-08-04CONTINENTAL UNIION CHAOLU TECH BEIJING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CONTINENTAL UNIION CHAOLU TECH BEIJING CO LTD
Filing Date
2025-09-09
Publication Date
2026-08-04

AI Technical Summary

Technical Problem

Existing drone fire trucks require a long time to replenish water, which affects the efficiency of long-distance firefighting.

Method used

A forest drone fire truck was designed, which adopts an alternating water replenishment mechanism, including two interchangeable mounted water tanks, an L-shaped water pipe, an electric push rod and push plate structure, to achieve rapid replacement and replenishment of water tanks.

Benefits of technology

It greatly shortens the waiting time for water replenishment, improves fire extinguishing efficiency, and is especially suitable for long-distance and continuous forest fire fighting missions.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a forest unmanned plane fire engine relates to fire fighting equipment technical field, including unmanned plane fire engine, the rear side of unmanned plane fire engine is provided with the alternate water supplement mechanism, the top of alternate water supplement mechanism is provided with the mounting unmanned plane, the alternate water supplement mechanism includes the water tank, the bottom rear side of water tank is provided with two water tank put into holes that go through its inner chamber, the inner chamber of two water tank put into holes all is provided with the mounting water tank. The utility model discloses through setting alternate water supplement mechanism, including two alternate use's mounting water tank, L type water pipe, electric push rod and push plate structure, so that when one mounting water tank is in the execution extinguishing fire task, another water tank can carry out water supplement simultaneously, makes unmanned plane to return behind can quick replacement has filled up water tank and takes off again, greatly shortens the time of waiting for water supplement, is especially suitable for long distance, continuous forest fire fighting task, improves the fire extinguishing efficiency.
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Description

Technical Field

[0001] This utility model relates to the field of fire-fighting equipment technology, specifically to a forest drone fire truck. Background Technology

[0002] In recent years, with the rapid development of drone technology, its application in forest firefighting has become an important research direction. Existing technologies include firefighting drones equipped with fire extinguishing bombs, water tanks, or spraying devices. These drones typically operate in conjunction with fire trucks, taking off from the trucks to perform reconnaissance or small-scale firefighting missions. These drones are often firefighting-type drones, larger and more robust, with payload capacity, capable of carrying dry powder or foam fire extinguishing canisters for direct aerial firefighting. Their built-in hose connections connect to the ground fire truck's pump system, raising the hose to a high altitude for high-altitude water spraying, or they can directly carry water tanks, using valves to drop water for firefighting. The former is suitable for small-scale firefighting not far from the fire truck, while the latter is suitable for fires at greater distances. However, existing technologies have the following problems: When existing drone fire trucks replenish water tanks mounted on drones, the tanks are often quite large to meet the firefighting needs, which means that each replenishment takes a long time. This seriously affects the efficiency of long-distance firefighting and the control of the fire. Utility Model Content

[0003] This utility model provides a forest drone fire truck to solve the problems mentioned in the background art.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: A forest drone fire truck includes a drone fire truck with a water exchange and replacement mechanism at its rear. A drone is mounted on the top of the water exchange and replacement mechanism. The water exchange and replacement mechanism includes a water tank. Two water tank insertion holes are located at the bottom rear of the water tank, extending through its interior. Each insertion hole contains a mounted water tank. An L-shaped water pipe is installed on the front inner rim of each insertion hole. The vertical ends of the two L-shaped water pipes are positioned above the two mounted water tanks. The other ends of the two L-shaped water pipes extend to the front of the water tank and are fixedly connected to a water pump pipe. The other ends of the water pump pipes are connected to a water pump system. Two first electric push rods are fixedly installed on the rear of the water tank. The output ends of the two first electric push rods extend into the interior of the water tank and are fixedly installed with first push plates. The front sides of the two first push plates are respectively attached to the rear sides of the two mounted water tanks. An electrically controlled valve is installed on the outer wall of each L-shaped water pipe.

[0005] A further improvement of this utility model is that: the top left and right sides of the mounted water tank are respectively provided with two suspension mechanisms, the top of the mounted water tank is provided with a water inlet that penetrates its inner cavity, and when the front side of the mounted water tank is attached to the front side of the inner ring of the water tank insertion hole, the water inlet is located below the vertical position of the L-shaped water pipe, and a duckbill valve that communicates vertically with the water inlet is fixedly connected to the top of the inner wall of the mounted water tank.

[0006] A further improvement of this utility model is that: a water outlet penetrating its inner cavity is provided at the center of the bottom of the mounted water tank; support plates are fixedly installed on both the front and rear sides of the bottom of the mounted water tank; a servo motor is fixedly installed at the bottom of the mounted water tank; the servo motor is located on one side of the water outlet; a sealing plate is fixedly installed on the output shaft of the servo motor; and the sealing plate is snapped into the inner ring of the water outlet.

[0007] A further improvement of this utility model is that a storage battery is fixedly installed on the bottom front side of the mounted water tank, the storage battery is located on the rear side of the front support plate, and the power output terminal of the storage battery is connected to the power input terminal of the servo motor by wire.

[0008] A further improvement of this utility model is that a connecting rod is fixedly installed between the opposite surfaces of the two support plates, a conical water expansion block is fixedly installed in the middle of the bottom of the connecting rod, the conical water expansion block is located directly below the water outlet, a sliding roller groove is opened at the bottom of both support plates, a sliding roller is movably installed between the left and right sides of the inner wall of the sliding roller groove, and the bottom of the sliding roller extends to the bottom of the support plate.

[0009] A further improvement of this utility model is that the suspension mechanism includes a vertical pole, a movable rod is movably installed at the bottom of the vertical pole, and a hook is fixedly installed at the bottom of the movable rod.

[0010] A further improvement of this utility model is that: drone ground support rods are fixedly installed on both the left and right sides of the bottom of the drone, and two adjacent limiting rods are fixedly installed on the front and rear sides of the bottom of the two drone ground support rods respectively, and the four hooks are respectively hung between the two adjacent limiting rods of the front and rear drone ground support rods.

[0011] A further improvement of this utility model is that: an installation plate is fixedly installed on the front side of the inner wall of the water replenishment tank, and a second electric push rod is fixedly installed on both the left and right sides of the bottom of the installation plate. A second push plate is fixedly installed on the output end of each of the two second electric push rods, and the rear sides of the two second push plates are respectively attached to the front sides of the left and right hanging water tanks.

[0012] Due to the adoption of the above technical solution, the technological progress achieved by this utility model compared to the prior art is as follows: 1. This utility model provides a forest drone fire truck, which is equipped with an alternating water replenishment mechanism, including two interchangeable mounted water tanks, an L-shaped water pipe, an electric push rod and a push plate structure. This allows the drone to be replenished with water while one mounted water tank is performing a firefighting mission. This enables the drone to quickly replace the replenished water tank and take off again after returning, greatly shortening the waiting time for water replenishment. It is particularly suitable for long-distance, continuous forest fire fighting missions and improves firefighting efficiency.

[0013] 2. This utility model provides a forest drone fire truck. Through the cooperation of the sliding roller and the first push plate of the electric push rod, the heavy water tank can be easily pushed into the water replenishment tank and accurately positioned. Similarly, after the water replenishment is completed, the second push plate can push the water tank back, so that it is detached from the water pipe, clearing obstacles for the drone to take off and realize the mechanization and speed of ground operation. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the water exchange mechanism of this utility model. Figure 3 This is a schematic diagram of the water tank mounted on the structure of this utility model; Figure 4 This is a schematic diagram of the suspension mechanism of the present invention; Figure 5 This is a schematic diagram showing the connection between the drone mounted on the structure of this utility model and the water tank.

[0015] In the diagram: 1. Unmanned aerial vehicle (UAV) fire truck; 2. Water exchange and replenishment mechanism; 21. Water tank; 211. Mounting plate; 212. Second electric push rod; 2121. Second push plate; 22. Water tank insertion hole; 23. Mounted water tank; 231. Suspension mechanism; 2311. Upright pole; 2312. Movable rod; 2313. Hook; 232. Duckbill valve; 233. Water outlet; 234. Support plate; 2341. Connecting rod; 2342. Conical water expansion block; 2343. Sliding roller groove; 2344. Sliding roller; 235. Servo motor; 236. Sealing plate; 237. Battery; 24. L-shaped water pipe; 25. Water pump pipe; 26. Electrically controlled valve; 27. First electric push rod; 28. First push plate; 3. Mounted UAV; 31. UAV ground contact support pole; 311. Limiting upright pole. Detailed Implementation

[0016] To make the technical means, creative features, objectives and effects of this utility model easier to understand Understood. The present invention will now be further described in conjunction with specific implementation methods.

[0017] like Figure 1 , Figure 2 As shown, this utility model provides a forest drone fire truck, including a drone fire truck 1. A water exchange and replenishment mechanism 2 is installed at the rear of the drone fire truck 1. A drone 3 is mounted on the top of the water exchange and replenishment mechanism 2. The water exchange and replenishment mechanism 2 includes a water tank 21. Two water tank insertion holes 22 are opened at the bottom rear of the water tank 21, extending through its inner cavity. Each of the two water tank insertion holes 22 has a mounted water tank 23 installed inside. An L-shaped water pipe 24 is installed on the front inner ring of each of the two water tank insertion holes 22. The vertical ends of the two L-shaped water pipes 24... Located above the two mounted water tanks 23, the other ends of the two L-shaped water pipes 24 extend to the front of the water replenishment tank 21 and are fixedly connected to the water pump pipe 25. The other end of the water pump pipe 25 is connected to the water pump system. The rear side of the water replenishment tank 21 is fixedly installed with two first electric push rods 27 on the left and right. The output ends of the two first electric push rods 27 extend into the inner cavity of the water replenishment tank 21 and are fixedly installed with first push plates 28. The front sides of the two first push plates 28 are respectively attached to the rear sides of the two mounted water tanks 23. The outer wall of the L-shaped water pipe 24 is provided with an electric control valve 26. During water replenishment, the mounted water tank 23 is attached to the mounted drone 3 and placed into one of the water tank insertion holes 22 until it stops against the bottom of the inner wall of the replenishment water tank 21. At this time, the mounted water tank 23 is located behind the L-shaped water pipe 24. Then, the first electric push rod 27 is activated to drive the first push plate 28 to push the entire mounted water tank 23 forward, so that the water inlet at the top is located below the vertical part of the L-shaped water pipe 24. Both L-shaped water pipes 24 are connected to the water pump pipe 25 through the water pump system of the drone fire truck 1 for water supply, and water can be discharged at any time by opening the electric control valve 26. Thus, the two mounted water tanks 23 can be replenished by alternately placing them into the water tank insertion hole 22. Each time the mounted water tank 23 runs out of water, the other mounted water tank 23 can be used for rapid re-flight fire extinguishing, thereby ensuring fire extinguishing efficiency.

[0018] like Figure 3As shown, the top left and right sides of the mounted water tank 23 are respectively equipped with two suspension mechanisms 231. The top of the mounted water tank 23 has a water inlet that penetrates its inner cavity. When the front side of the mounted water tank 23 is in contact with the front side of the inner ring of the water tank insertion hole 22, the water inlet is located below the vertical position of the L-shaped water pipe 24. The top of the inner wall of the mounted water tank 23 is fixedly connected with a duckbill valve 232 that communicates vertically with the water inlet. The bottom center of the mounted water tank 23 has a water outlet 233 that penetrates its inner cavity. Support plates 234 are fixedly installed on both the front and rear sides of the bottom of the mounted water tank 23. A servo motor 235 is fixedly installed on the bottom of the mounted water tank 23. The servo motor 235 is located on one side of the water outlet 233. A sealing plate 2 is fixedly installed on the output shaft of the servo motor 235. 36. The sealing plate 236 is snapped into the inner ring of the outlet 233. A battery 237 is fixedly installed on the bottom front side of the water tank 23. The battery 237 is located on the rear side of the front support plate 234, and the power output terminal of the battery 237 is connected to the power input terminal of the servo motor 235. A connecting rod 2341 is fixedly installed between the opposite surfaces of the two support plates 234. A conical water expansion block 2342 is fixedly installed in the middle of the bottom of the connecting rod 2341. The conical water expansion block 2342 is located directly below the outlet 233. A sliding roller groove 2343 is opened at the bottom of both support plates 234. A sliding roller 2344 is movably installed between the left and right sides of the inner wall of the sliding roller groove 2343. The bottom of the sliding roller 2344 extends to the bottom of the support plate 234. During water replenishment, water enters the inner cavity of the mounted water tank 23 through the downward-facing duckbill valve 232. After replenishment, the duckbill valve 232 automatically closes due to rubber elasticity to prevent water from splashing out during shaking. The entire mounted water tank 23 is elevated by two support plates 234, facilitating the opening and closing of the sealing plate 236 driven by the servo motor 235. This allows water to quickly fall through the outlet 233 and diffuse using the conical water diffuser 2342 at the top of the connecting rod 2341, increasing the fire extinguishing range. The servo motor 235 uses a rechargeable battery... The battery 237 provides independent power, and the outer wall of the servo motor 235 is equipped with an encoder. The encoder can be remotely wirelessly controlled via Bluetooth or 5G modules, which facilitates remote opening of the sealing plate 236 for fire extinguishing. When the water tank 23 is placed into the inner cavity of the water supply tank 21, in order to reduce the resistance under forward and backward pushing, a rotating roller 2344 is installed in the roller groove 2343 opened at the bottom of the support plate 234 to achieve rapid sliding of the water tank 23. The width of the water tank 23 is similar to that of the water tank insertion hole 22, which can provide a certain limiting effect during sliding.

[0019] like Figure 4 , Figure 5As shown, the suspension mechanism 231 includes a pole 2311, a movable rod 2312 is movably installed at the bottom of the pole 2311, a hook 2313 is fixedly installed at the bottom of the movable rod 2312, drone ground support rods 31 are fixedly installed on the left and right sides of the bottom of the drone 3, two adjacent limiting poles 311 are fixedly installed on the front and rear sides of the bottom of the two drone ground support rods 31 respectively, and four hooks 2313 are respectively hung between the two adjacent limiting poles 311 of the front and rear drone ground support rods 31. An installation plate 211 is fixedly installed on the front side of the inner wall of the water tank 21, and second electric push rods 212 are fixedly installed on the left and right sides of the bottom of the installation plate 211. Second push plates 2121 are fixedly installed at the output ends of the two second electric push rods 212 respectively, and the rear sides of the two second push plates 2121 are respectively attached to the front sides of the left and right hanging water tanks 23. The connection between the drone 3 and the water tank 23 is mainly achieved through the hooks 2313 on the movable rod 2312 at the top of the pole 2311, which are connected to the two limiting poles 311 before and after the drone ground support pole 31. After all four hooks 2313 are manually attached, the drone can be mounted and taken off. The drone is restrained by the limiting poles 311 and will not sway back and forth. The hooks 2313 adopt a self-locking design, which can effectively prevent them from falling off and ensure their stability. When the water tank 23 is full of water and needs to take off, in order to avoid the L-shaped water pipe 24 from being blocked, the second electric push rod 212 on the top of the mounting plate 211 can be activated to push the second push plate 2121, thereby pushing the water tank 23 to the rear of the inner ring of the water tank insertion hole 22. At the same time, the first push plate 28 retracts simultaneously, so that the rising space of the water tank 23 is separated from the L-shaped water pipe 24, and the drone can take off smoothly.

[0020] The working principle of this forest drone fire truck will be explained in detail below.

[0021] like Figure 1-5As shown, during water replenishment, the mounted water tank 23 is attached to the mounted drone 3 and placed into one of the water tank insertion holes 22 until it stops against the bottom of the inner wall of the replenishment water tank 21. At this point, the mounted water tank 23 is located behind the L-shaped water pipe 24. Then, the first electric push rod 27 is activated to drive the first push plate 28 to push the entire mounted water tank 23 forward, so that the water inlet at its top is located below the vertical part of the L-shaped water pipe 24. Both L-shaped water pipes 24 are connected to the water pump pipe 25 through the water pump system of the drone fire truck 1 for water supply, and water can be discharged at any time by opening the electric control valve 26. Thus, the two mounted water tanks 23 can be replenished by alternately placing them into the water tank insertion hole 22, so that each When the secondary water tank 23 runs out of water, another secondary water tank 23 can be used for rapid firefighting, ensuring firefighting efficiency. During replenishment, water enters the inner cavity of the secondary water tank 23 through the downward-facing duckbill valve 232. After replenishment, the duckbill valve 232 automatically closes due to rubber elasticity, preventing water from splashing out during shaking. The entire secondary water tank 23 is elevated by two support plates 234, facilitating the opening and closing of the sealing plate 236 driven by the servo motor 235. This allows water to quickly fall through the outlet 233 and diffuse using the conical water diffuser 2342 at the top of the connecting rod 2341, increasing the firefighting range. The servo motor 235 is powered by a rechargeable battery 23. 7 is independently powered, and the outer wall of the servo motor 235 is equipped with an encoder. The encoder can be remotely wirelessly controlled via Bluetooth or 5G modules, facilitating remote opening of the sealing plate 236 for fire extinguishing. When the mounted water tank 23 is placed into the inner cavity of the water supply tank 21, in order to reduce the resistance under forward and backward pushing, a rotating roller 2344 is installed in the roller groove 2343 at the bottom of the support plate 234 to achieve rapid sliding of the mounted water tank 23. The width of the mounted water tank 23 is similar to that of the water tank insertion hole 22, which can provide a certain limiting effect during sliding. The connection between the mounted drone 3 and the mounted water tank 23 is mainly through the hook 2313 on the movable rod 2312 at the top of the upright 2311, which is the ground support rod 3 for mounting the drone. After all four hooks 2313 are manually attached between the two limiting poles 311 at the front and rear, the vehicle can be mounted and taken off. It is restrained by the limiting poles 311 and will not sway back and forth. At the same time, the hooks 2313 adopt a self-locking hook design, which can effectively prevent them from falling off and ensure their stability. When the mounted water tank 23 filled with water needs to take off, in order to avoid the L-shaped water pipe 24 from being blocked, the second push plate 2121 can be pushed by activating the second electric push rod 212 on the top of the mounting plate 211. This pushes the mounted water tank 23 to the rear of the inner ring of the water tank insertion hole 22. At the same time, the first push plate 28 retracts simultaneously, so that the rising space of the mounted water tank 23 is separated from the L-shaped water pipe 24, and the vehicle can take off smoothly.

[0022] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A forest drone fire truck, comprising a drone fire truck (1), characterized in that: The unmanned aerial vehicle fire truck (1) is equipped with a water exchange and replenishment mechanism (2) at its rear. The top of the water exchange and replenishment mechanism (2) is equipped with a drone (3). The water exchange and replenishment mechanism (2) includes a water supply tank (21). The bottom rear side of the water supply tank (21) has two water tank insertion holes (22) that penetrate its inner cavity. The inner cavity of each of the two water tank insertion holes (22) is equipped with a mounted water tank (23). The front side of the inner ring of each of the two water tank insertion holes (22) is equipped with an L-shaped water pipe (24). The vertical part of each of the two L-shaped water pipes (24) is located on the upper part of the two mounted water tanks (23). The other ends of the two L-shaped water pipes (24) are both connected to the front of the water supply tank (21) and are fixedly connected to the water pump pipe (25). The other end of the water pump pipe (25) is connected to the water pump system. The rear side of the water supply tank (21) is fixedly installed with two first electric push rods (27). The output ends of the two first electric push rods (27) are both connected to the inner cavity of the water supply tank (21) and are fixedly installed with first push plates (28). The front sides of the two first push plates (28) are respectively attached to the rear sides of the two hanging water tanks (23). The outer wall of the L-shaped water pipe (24) is provided with an electric control valve (26).

2. A forest drone fire truck according to claim 1, characterized in that: The top left and right sides of the mounted water tank (23) are respectively provided with two suspension mechanisms (231). The top of the mounted water tank (23) is provided with a water inlet that penetrates its inner cavity. When the front side of the mounted water tank (23) is in contact with the front side of the inner ring of the water tank insertion hole (22), the water inlet is located below the vertical position of the L-shaped water pipe (24). The top of the inner wall of the mounted water tank (23) is fixedly connected with a duckbill valve (232) that communicates vertically with the water inlet.

3. A forest drone fire truck according to claim 1, characterized in that: The bottom center of the mounted water tank (23) is provided with an outlet (233) that penetrates its inner cavity. Support plates (234) are fixedly installed on both the front and rear sides of the bottom of the mounted water tank (23). A servo motor (235) is fixedly installed on the bottom of the mounted water tank (23). The servo motor (235) is located on one side of the outlet (233). A sealing plate (236) is fixedly installed on the output shaft of the servo motor (235). The sealing plate (236) is engaged with the inner ring of the outlet (233).

4. A forest drone fire truck according to claim 3, characterized in that: A battery (237) is fixedly installed on the bottom front side of the mounted water tank (23). The battery (237) is located on the rear side of the front support plate (234), and the power output terminal of the battery (237) is connected to the power input terminal of the servo motor (235) by wire.

5. A forest drone fire truck according to claim 3, characterized in that: A connecting rod (2341) is fixedly installed between the opposite surfaces of the two support plates (234). A conical water expansion block (2342) is fixedly installed in the middle of the bottom of the connecting rod (2341). The conical water expansion block (2342) is located directly below the water outlet (233). A sliding roller groove (2343) is opened at the bottom of both support plates (234). A sliding roller (2344) is movably installed between the left and right sides of the inner wall of the sliding roller groove (2343). The bottom of the sliding roller (2344) extends to the bottom of the support plate (234).

6. A forest drone fire truck according to claim 2, characterized in that: The suspension mechanism (231) includes a vertical pole (2311), a movable rod (2312) is movably installed at the bottom of the vertical pole (2311), and a hook (2313) is fixedly installed at the bottom of the movable rod (2312).

7. A forest drone fire truck according to claim 6, characterized in that: The bottom left and right sides of the drone (3) are fixedly installed with drone ground support rods (31), and the bottom front and rear sides of the two drone ground support rods (31) are respectively fixedly installed with two adjacent limiting rods (311). The four hooks (2313) are respectively hung between the two adjacent limiting rods (311) of the front and rear drone ground support rods (31).

8. A forest drone fire truck according to claim 1, characterized in that: An installation plate (211) is fixedly installed on the front side of the inner wall of the water replenishment tank (21). A second electric push rod (212) is fixedly installed on both the left and right sides of the bottom of the installation plate (211). A second push plate (2121) is fixedly installed on the output end of each of the two second electric push rods (212). The rear sides of the two second push plates (2121) are respectively attached to the front sides of the left and right hanging water tanks (23).