Fire extinguishing water bucket special for heavy-load fire-fighting unmanned aerial vehicle
By designing a special fire-fighting water tank for heavy-duty fire-fighting drones, and adopting a lightweight water tank body and a servo motor-driven pressing and rotating plate mechanism, a low-cost, wide-area fire-fighting effect is achieved. This solves the problems of high cost and small fire-fighting area of traditional fire-fighting drone fire-fighting devices, improves fire-fighting efficiency, and avoids the risk of secondary explosion.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Filing Date
- 2025-08-13
- Publication Date
- 2026-07-14
AI Technical Summary
Traditional drone-based firefighting devices are costly, have a small extinguishing area, and pose a risk of secondary explosion, making them difficult to effectively control the spread of large-scale fires.
A special fire-fighting water tank for heavy-duty fire-fighting drones has been designed. It adopts a lightweight water tank body and uses a servo motor to drive the pressing and rotating plate and pulley mechanism to achieve rapid release and diffusion of water source. Combined with rubber rings and sealing clips, it can prevent leakage and expand the fire-fighting coverage area.
It reduced firefighting costs, expanded the firefighting coverage area, improved firefighting efficiency, and avoided the risk of secondary explosion.
Smart Images
Figure CN224484768U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fire protection engineering technology, specifically to a fire extinguishing water tank for heavy-duty fire-fighting drones. Background Technology
[0002] In direct firefighting applications, heavy-duty firefighting drones with a payload capacity of 100 kg or more are of great significance for suppressing initial fires, controlling the spread of fire, and protecting critical facilities and rescue personnel, as they can carry sufficient firefighting materials for precise delivery or spraying. However, existing technologies suffer from the following problems:
[0003] Traditional drone-based firefighting primarily relies on high-altitude dropping of fire extinguishing bombs, which is costly and covers a small area. A single 25-kilogram fire extinguishing bomb costs several thousand yuan and can only extinguish about twenty square meters of fire. In the event of a large-scale wildfire, this method is ineffective in controlling the rapid spread of the fire, and the high cost makes it unaffordable. Furthermore, if the fire extinguishing bomb does not explode on-site, there is a risk of secondary detonation after subsequent personnel intervention, increasing safety hazards. Utility Model Content
[0004] This utility model provides a special fire-extinguishing water tank for heavy-duty fire-fighting drones to solve the problems mentioned in the background art.
[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:
[0006] A fire-fighting water tank specifically designed for heavy-duty fire-fighting drones includes a water tank mechanism. The bottom of the water tank mechanism has a water tank support mechanism. The water tank mechanism includes a water tank body. The bottom of the water tank body has a waterproof mechanism. A water inlet pipe is fixedly connected to the top of the water tank body, penetrating its inner cavity. A threaded sealing cap is threaded onto the outer wall of the water inlet pipe. Four rope grooves penetrating the top of the water tank body are arranged in a circular array on the outer wall of the outer wall of the water tank body. The water tank support mechanism includes a retaining ring, which is engaged with the outer wall of the water tank body and located outside the rope grooves. The waterproof mechanism includes a fixing ring, which is fixedly installed below the outer wall of the water tank mechanism. A servo motor mounting plate is fixedly installed on the bottom left side of the fixing ring. A slot is formed on the right side of the servo motor mounting plate, and a drive servo motor is fixedly installed inside the slot. A U-shaped hanging plate is fixedly installed on the bottom right side of the servo motor mounting plate. A pressing rotating plate is fixedly installed on the output shaft of the drive servo motor. The bottom of the pressing rotating plate is movably connected to the top of the horizontal section of the U-shaped hanging plate.
[0007] A further improvement of this utility model is that: an L-shaped fixing plate is fixedly installed on the bottom right side of the fixing ring, a sealing plate is hinged to the left side of the horizontal part of the L-shaped fixing plate, and a pressing protrusion is fixedly installed on the bottom left side of the sealing plate, the pressing protrusion being located on the upper right side of the pressing plate.
[0008] A further improvement of this utility model is that: two support rods are fixedly installed on the front and rear sides of the bottom of the retaining ring, a ground contact rod is fixedly installed at the bottom of the front and rear two support rods, a cross rod is fixedly installed between the opposite surfaces of the front and rear two support rods, a water source diffusion block is fixedly installed at the top of the intersection of the cross rods, and the water source diffusion block has several through holes in a ring array.
[0009] A further improvement of this utility model is that: U-shaped plates are fixedly installed at both the left and right ends of the top of the pressing plate, and pulleys are rotatably installed between the two vertical points of the two U-shaped plates. The top of the pulley on the right side is in contact with the bottom of the pressing protrusion, and the top of the pulley on the left side is in contact with the bottom of the servo mounting plate.
[0010] A further improvement of this utility model is that: the bottom of the water bucket body is provided with a water outlet that penetrates its inner cavity, the water outlet is located directly above the water source diffusion block, and a sealing clip is fixedly installed on the top of the sealing plate, the sealing clip engaging with the inner ring of the water outlet.
[0011] A further improvement of this utility model is that a rubber ring is fixedly bonded to the bottom of the water bucket body, the rubber ring is located outside the water outlet, and the top of the sealing plate is attached to the outer wall of the rubber ring.
[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:
[0013] 1. This utility model provides a special fire extinguishing water tank for heavy-duty firefighting drones. The lightweight water tank body is manufactured by rotational molding and blow molding processes, replacing the traditional fire extinguishing bombs. Ordinary water is injected through the top water pipe, avoiding the use of high-cost fire extinguishing agents. The water tank body and the support mechanism adopt a snap-ring split design, which facilitates quick assembly and transportation, further optimizing costs and achieving the effect of reducing fire extinguishing costs and expanding the fire extinguishing coverage.
[0014] 2. This utility model provides a special fire-fighting water tank for heavy-duty fire-fighting drones. The waterproof mechanism is driven by a servo motor to press and rotate the plate. The pressure protrusion of the sealing plate is pressed by a pulley. With the help of a rubber ring and a sealing clip, double leakage prevention is achieved. The drone remotely triggers the servo motor to rotate the pressing and rotating plate, releasing the restriction on the sealing plate. The water flow opens the sealing plate by its own weight, realizing the rapid release of water source. The water flow impacts the bottom water source diffuser block to form a ring-shaped water curtain, which can also expand the spraying area and improve the fire-fighting efficiency. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0016] Figure 2 This is a schematic diagram of the bucket mechanism and bucket support mechanism of this utility model.
[0017] Figure 3 This is a schematic diagram of the waterproof mechanism of the present invention.
[0018] Figure 4 This is a schematic diagram of the pressing plate of the present invention;
[0019] Figure 5 This is a schematic diagram of the sealing plate in the open state of the structure of this utility model.
[0020] In the diagram: 1. Water bucket mechanism; 11. Water bucket body; 111. Water outlet; 112. Rubber ring; 12. Waterproofing mechanism; 121. Fixing ring; 122. Servo mounting plate; 123. U-shaped hanging plate; 124. Drive servo; 125. Pressing plate; 1251. U-shaped plate; 1252. Pulley; 126. L-shaped fixing plate; 127. Sealing plate; 1271. Sealing clip plate; 128. Pressing protrusion; 13. Water filling pipe; 14. Threaded sealing cap; 15. Hanging rope groove; 2. Water bucket support mechanism; 21. Snap ring; 22. Support rod; 23. Ground contact rod; 24. Cross rod; 25. Water source diffusion block. Detailed Implementation
[0021] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0022] like Figure 1 , Figure 2As shown, this utility model provides a special fire-fighting water bucket for heavy-duty fire-fighting drones, including a water bucket mechanism 1, a water bucket support mechanism 2 at the bottom of the water bucket mechanism 1, a water bucket body 11, and a water bucket body 11. The water bucket body 11 is mass-produced using rotational molding, blow molding, and other mold processes, resulting in light weight, low cost, and leak-proof properties. A waterproof mechanism 12 is provided at the bottom of the water bucket body 11, and a water inlet pipe 13 is fixedly connected to the top of the water bucket body 11, penetrating its inner cavity. A threaded sealing cap 14 is threaded onto the outer wall of the water inlet pipe 13. Four hanging rope grooves 15 are arranged in a ring array on the outer wall of the water bucket body 11, penetrating its top. The water bucket support mechanism 2 includes a retaining ring 21. The retaining ring 21 is snapped onto the outer wall of the water bucket body 11 and located outside the rope groove 15. Two support rods 22 are fixedly installed on the front and rear sides of the bottom of the retaining ring 21. A ground contact rod 23 is fixedly installed at the bottom of the two support rods 22. A cross rod 24 is fixedly installed between the opposite faces of the two support rods 22. A water source diffusion block 25 is fixedly installed at the top of the intersection of the cross rods 24. The water source diffusion block 25 is a conical design, and the water source diffusion block 25 has several through holes in a ring array. When the water source falls and contacts the water source diffusion block 25, it will not only diffuse in a ring, but also some water source will fall down to the bottom of the water source diffusion block through the through holes to ensure the spraying range.
[0023] In use, the thinner part at the bottom of the bucket body 11 is aligned with the retaining ring 21 and inserted until it touches the position of the rope groove 15. Then, the rope can be passed through the rope groove 15 and tied to the retaining ring 21. The other end of the rope can be connected to the bottom of the large-load drone, so that the entire bucket body 11 can be landed stably by the ground contact rod 23 at the bottom of the support rod 22. It is also convenient to add water during daily placement. When adding water, simply rotate to open the threaded sealing cap 14 and inject water from the water inlet pipe 13 into the inner cavity of the bucket body 11 until it is full.
[0024] like Figure 3 , Figure 4As shown, the waterproof mechanism 12 includes a fixing ring 121, which is fixedly installed on the lower outer wall of the bucket mechanism 1. A servo motor mounting plate 122 is fixedly installed on the bottom left side of the fixing ring 121. A slot is provided on the right side of the servo motor mounting plate 122, and a drive servo motor 124 is fixedly installed inside the slot. The drive servo motor 124 can be controlled by a ground control switch of the UAV remote controller. A U-shaped hanging plate 123 is fixedly installed on the bottom right side of the servo motor mounting plate 122. A pressing rotating plate 125 is fixedly installed on the output shaft of the drive servo motor 124. The bottom of the pressing rotating plate 125 is movably connected to the top of the U-shaped hanging plate 123 at the horizontal position. An L-shaped fixing plate 126 is fixedly installed on the bottom right side of the fixing ring 121. A sealing plate 127 is hinged to the left side of the horizontal part of the L-shaped fixing plate 126. A pressing protrusion 128 is fixedly installed on the bottom left side of the sealing plate 127. The pressing protrusion 128 is located on the upper right side of the pressing rotating plate 125. U-shaped plates 1251 are fixedly installed on both the left and right ends of the top of the pressing rotating plate 125. A pulley 1252 is rotatably installed between the two vertical parts of the two U-shaped plates 1251. The top of the right pulley 1252 is in contact with the bottom of the pressing protrusion 128, and the top of the left pulley 1252 is in contact with the bottom of the servo mounting plate 122.
[0025] Before the fire is extinguished, the bottom sealing plate 127 of the water bucket body 11 is in a horizontally closed state, and the pressing protrusion 128 on the bottom left side is pressed and limited by the pulley 1252 on the top right U-shaped plate 1251 of the pressing rotating plate 125 to prevent it from flipping open. When the drone uses a rope to move the water bucket body 11 to the sky above the fire source, the drive servo motor 124 powered by the drone can be activated. Through the pre-programmed rotation angle signal, the entire pressing rotating plate 125 can be controlled to move on the U-shaped hanging plate 1251. 3. When rotating upwards, the sliding between the left pulley 1252 and the bottom of the servo mounting plate 122, and the sliding between the right pulley 1252 and the bottom of the pressing protrusion 128, reduce frictional resistance, making the rotation and opening smoother and faster. Finally, the right pulley 1252 will disengage from the pressing protrusion 128. When the pressing protrusion 128 is released from its limit, the sealing plate 127 can be quickly flipped open by the large amount of water in the inner cavity of the water tank body 11 through the hinge with the L-shaped fixing plate 126, so that the water can fall down.
[0026] like Figure 5 As shown, the bottom of the water bucket body 11 is provided with a water outlet 111 that penetrates its inner cavity. The water outlet 111 is located directly above the water source diffuser block 25. A sealing clip 1271 is fixedly installed on the top of the sealing plate 127. The sealing clip 1271 is engaged with the inner ring of the water outlet 111. A rubber ring 112 is fixedly bonded to the bottom of the water bucket body 11. The rubber ring 112 is located outside the water outlet 111. The top of the sealing plate 127 is attached to the outer wall of the rubber ring 112.
[0027] When water flows from the outlet 111, the water diffuser block 25 directly below creates a ring-shaped water curtain, achieving a diffused spraying effect. When water is replenished, the sealing plate 127 can be flipped upwards again, and the sealing clip 1271 can be inserted into the water tank body 11 to achieve a temporary seal. Then, the drive servo motor 124 is activated to drive the pressing plate 125 to reset, allowing the pulley 1252 to press the pressing protrusion 128 again, thus pressing the sealing plate 127 tightly. The rubber ring 112's fit with the sealing plate 127 further enhances the seal and prevents leakage.
[0028] The working principle of this heavy-duty fire-fighting drone-specific fire-extinguishing water tank will be explained in detail below.
[0029] like Figure 1-5 As shown, during use, the thinner part at the bottom of the water bucket body 11 is aligned with the retaining ring 21 and inserted until it touches the position of the rope groove 15. Then, the rope can be passed through the rope groove 15 and tied to the retaining ring 21. The other end of the rope can be connected to the bottom of the large-payload drone, so that the entire water bucket body 11 can be stably placed on the ground using the ground contact rod 23 at the bottom of the support rod 22. It is also convenient to add water during daily placement. When adding water, simply rotate to open the threaded sealing cap 14 and pour water into the water bucket body through the water inlet pipe 13. The inner cavity of the water tank 11 is filled until it is full. Before the fire is extinguished, the bottom sealing plate 127 of the water tank 11 is in a horizontally closed state, and the pressing protrusion 128 on the bottom left side is pressed and limited by the pulley 1252 on the top right U-shaped plate 1251 of the pressing plate 125 to prevent it from flipping open. When the drone uses a rope to move the water tank 11 as a whole to the sky above the fire source, the drive servo motor 124 powered by the drone can be activated. Through the pre-programmed rotation angle signal, the pressing plate 125 can be controlled. Rotating above the U-shaped hanging plate 123, during rotation, the sliding between the left pulley 1252 and the bottom of the servo mounting plate 122, and the sliding between the right pulley 1252 and the bottom of the pressing protrusion 128, reduces frictional resistance, making the rotation and opening smoother and faster. Ultimately, the right pulley 1252 will disengage from the pressing protrusion 128. With the pressing protrusion 128 released from its limiting position, the sealing plate 127, through its hinge with the L-shaped fixing plate 126, is quickly flipped open by the pressure of a large amount of water inside the water tank body 11, allowing the water source to... The water falls and uses the water source diffuser block 25 directly below to form a ring-shaped water curtain, achieving a diffused spraying effect. When the water source is replenished next time, the sealing plate 127 can be flipped upward again, and the sealing clip 1271 can be inserted into the water tank body 11 to complete the temporary seal. Then, the drive servo motor 124 is activated to drive the pressing plate 125 to reset, and the pulley 1252 presses the pressing protrusion 128 again, so that the sealing plate 127 is pressed tightly. The rubber ring 112 is used to improve the sealing performance by adhering to the sealing plate 127 to prevent water leakage.
[0030] 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 fire-fighting water tank specifically designed for heavy-duty fire-fighting drones, comprising a water tank mechanism (1), characterized in that: The bottom of the bucket mechanism (1) is provided with a bucket support mechanism (2). The bucket mechanism (1) includes a bucket body (11). The bottom of the bucket body (11) is provided with a waterproof mechanism (12). The top of the bucket body (11) is fixedly connected with a water inlet pipe (13) that passes through its inner cavity. The outer wall of the water inlet pipe (13) is threaded with a threaded sealing cap (14). The outer wall of the bucket body (11) is provided with four hanging rope grooves (15) that pass through its top in a circular array. The bucket support mechanism (2) includes a retaining ring (21). The retaining ring (21) is engaged with the outer wall of the bucket body (11) and located outside the hanging rope grooves (15). The waterproof mechanism (12) includes a fixing ring (121), which is fixedly installed on the lower outer wall of the bucket mechanism (1). A servo mounting plate (122) is fixedly installed on the bottom left side of the fixing ring (121). A slot is provided on the right side of the servo mounting plate (122). A drive servo (124) is fixedly installed on the inner side of the slot. A U-shaped hanging plate (123) is fixedly installed on the bottom right side of the servo mounting plate (122). A pressing rotating plate (125) is fixedly installed on the output shaft of the drive servo (124). The bottom of the pressing rotating plate (125) is movably connected to the top of the U-shaped hanging plate (123) at the horizontal position.
2. The fire-extinguishing water tank for heavy-duty firefighting drones according to claim 1, characterized in that: An L-shaped fixing plate (126) is fixedly installed on the bottom right side of the fixing ring (121). A sealing plate (127) is hinged to the left side of the horizontal position of the L-shaped fixing plate (126). A pressing protrusion (128) is fixedly installed on the bottom left side of the sealing plate (127). The pressing protrusion (128) is located on the upper right side of the pressing rotating plate (125).
3. The fire-extinguishing water tank for heavy-duty firefighting drones according to claim 2, characterized in that: Two support rods (22) are fixedly installed on the front and rear sides of the bottom of the retaining ring (21). A ground contact rod (23) is fixedly installed at the bottom of the two support rods (22). A cross rod (24) is fixedly installed between the opposite surfaces of the two support rods (22). A water source diffusion block (25) is fixedly installed at the top of the intersection of the cross rods (24). The water source diffusion block (25) has several through holes that run vertically through the ring array.
4. The fire-extinguishing water tank for heavy-duty firefighting drones according to claim 1, characterized in that: The top left and right ends of the pressing plate (125) are fixedly installed with U-shaped plates (1251). A pulley (1252) is rotatably installed between the two vertical parts of the two U-shaped plates (1251). The top of the pulley (1252) on the right side is in contact with the bottom of the pressing protrusion (128), and the top of the pulley (1252) on the left side is in contact with the bottom of the servo mounting plate (122).
5. A fire-extinguishing water tank specifically designed for heavy-duty firefighting drones according to claim 3, characterized in that: The bottom of the water tank body (11) is provided with a water outlet (111) that penetrates its inner cavity. The water outlet (111) is located directly above the water source diffusion block (25). A sealing clip (1271) is fixedly installed on the top of the sealing plate (127), and the sealing clip (1271) is engaged with the inner ring of the water outlet (111).
6. A fire-extinguishing water tank specifically designed for heavy-duty firefighting drones according to claim 5, characterized in that: A rubber ring (112) is fixedly bonded to the bottom of the water bucket body (11). The rubber ring (112) is located outside the water outlet (111), and the top of the sealing plate (127) is attached to the outer wall of the rubber ring (112).