A fire bucket

By adopting a rigid tank design and a longitudinal sliding sealing structure in the drone fire bucket, the problems of small water storage space and low water discharge efficiency are solved, enabling efficient fire extinguishing in complex terrain.

CN224441981UActive Publication Date: 2026-07-03RISING SUN & BLUE SKY (WUHAN) TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
RISING SUN & BLUE SKY (WUHAN) TECH CO LTD
Filing Date
2025-08-04
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

Existing drone-based water collection and release devices have small water storage capacity and low water release efficiency, which cannot meet the needs of rapid fire extinguishing in complex terrain.

Method used

It adopts a rigid barrel design with a fixed water outlet at the bottom. The sealing plate can be quickly fully opened or fully closed by longitudinal sliding between the lifting plate and the barrel. Combined with the servo motor locking pin electronic unlocking and rigid linkage sealing plate, it ensures rapid water release.

Benefits of technology

It achieves high water storage capacity utilization, rapid drainage, and is suitable for rapid fire extinguishing in complex terrain, thus improving the fire-fighting efficiency of drones.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to unmanned plane fire fighting technical field, concretely is a kind of fire bucket including bucket, hoist subassembly and sealing element;Bucket includes bucket body and mounting piece, and the water outlet is established in bucket body bottom;Mounting piece includes two, and it is symmetrically arranged in the both sides of bucket body top;Hoist subassembly includes hoist plate and limit piece, and hoist plate is horizontally arranged in bucket body top, and hoist plate both ends are respectively with two mounting pieces opposite position, and limit sliding hole is established in alignment place, for sliding connection on mounting piece;Limit piece includes two groups, and it is respectively arranged in hoist plate corresponding mounting piece place, for mounting piece is fixed or is fixed to remove;Sealing element is arranged at water outlet, and is connected on hoist plate, for following hoist plate movement, sealing or opening to water outlet.Rigid bucket body bottom is established fixed water outlet, and bucket body itself is complete water storage cavity, and water storage volume loss is lower;Hoist plate and bucket body can only be quickly realized full opening or full closure of sealing plate through longitudinal sliding.
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Description

Technical Field

[0001] This utility model relates to the field of drone firefighting technology, specifically a fire bucket. Background Technology

[0002] Forest and hill fires occur frequently around the world, causing immense harm to people's lives and property. Due to the complex geographical environment of forests, firefighters often cannot reach the fire scene in a timely manner. Therefore, when forest fires occur, helicopters or drones are frequently seen dropping water into the fire scene using various methods to extinguish them.

[0003] For example, the existing utility model patent CN110641699A proposes an automatic water intake and release device for drones. This utility model realizes the water intake and release functions through a water bag and a bottomless design. The solution uses a hoisting motor and a pull rope to control the opening and closing of the lower support frame, thereby completing the loading and release of water.

[0004] As described in the above technical solution, the soft water bag uses a motor-controlled pull rope to pull the opening upwards when drawing water, thus storing the water in the bag. However, this method greatly reduces the water storage space of the water bag. In addition, during the water discharge process, the motor needs to lower the pull rope until the support frame is at the bottom of the water bag before all the water in the bag can be discharged. This results in problems such as small water storage space and low water discharge efficiency. Utility Model Content

[0005] In view of the technical problems in the prior art, the present invention provides a fire bucket, which aims to solve the problems of small water storage space and low water discharge efficiency of the existing water collection and dispensing devices for drones.

[0006] A fire bucket includes a bucket, a lifting assembly, and a sealing element, wherein,

[0007] The bucket includes a bucket body and mounting components. The bottom of the bucket body has a water outlet. The mounting components include two components, which are symmetrically arranged on both sides of the top of the bucket body.

[0008] The hoisting assembly includes a hoisting plate and limiting components. The hoisting plate is horizontally positioned on the top of the barrel. Both ends of the hoisting plate are respectively aligned with two mounting components, and limiting sliding holes are provided at the alignment points for sliding connection to the mounting components. The limiting components include two sets, which are respectively provided at the corresponding mounting components on the hoisting plate for fixing or unfixing the mounting components.

[0009] The sealing element is located at the water outlet and connected to the lifting plate, and is used to seal or open the water outlet as the lifting plate moves.

[0010] Optionally, the mounting component includes a mounting block, a delivery fixing plate, and a limiting block, wherein,

[0011] The mounting block is fixedly installed on the top side wall of the barrel and corresponds to the end of the lifting plate;

[0012] The launching and fixing plate is fixedly mounted on the mounting block. The launching and fixing plate is perpendicular to the lifting plate, and its top passes through the limiting sliding hole upward and is slidably connected to it.

[0013] The limiting block is located on the top of the delivery fixing plate; it is used to restrict the delivery fixing plate from sliding down through the limiting sliding hole.

[0014] Optionally, the limiting component includes a servo motor and a locking pin, wherein,

[0015] The servo motor is fixedly mounted on the hoisting plate, and is positioned corresponding to the fixed plate. The servo motor is connected to the signal of the external control equipment.

[0016] The locking pin is driven to the servo motor, and the deployment fixing plate has a locking hole opposite the locking pin. The servo motor can drive the locking pin to insert or retract from the locking hole to fix or release the deployment fixing plate.

[0017] Optionally, the hoisting assembly further includes two hoisting blocks, which are respectively located at both ends of the hoisting plate for hoisting the UAV.

[0018] Optionally, the seal includes a sealing plate and a connector, wherein,

[0019] The sealing plate is located at the water outlet at the bottom of the barrel and is used to cover the top of the water outlet for sealing.

[0020] The connector is connected between the sealing plate and the lifting plate, and is used to make the sealing plate move with the lifting plate to seal or open the water outlet.

[0021] Optionally, the connector includes a push rod, a connecting post, and a spring, wherein,

[0022] One end of the top rod is fixedly connected to the bottom of the hoisting plate and is set perpendicular to it; the bottom of the top rod has a movable cavity.

[0023] One end of the connecting column is slidably disposed in the movable cavity, and the other end is fixedly connected to the top of the sealing plate. The sliding stroke distance of the connecting column in the movable cavity is less than the sliding stroke distance of the lifting plate on the mounting component.

[0024] The spring is located inside the movable cavity and at the top of the connecting column, and is used to drive the connecting column to press down on the sealing plate to seal the water outlet when not spraying water.

[0025] Optionally, the connector further includes a stop and a limiting ring block, wherein,

[0026] The baffle is located at the bottom of the movable cavity and around the connecting column;

[0027] The limiting ring block is located at one end of the connecting column inside the movable cavity and is slidably connected to the inner wall of the movable cavity. The distance from the limiting ring block to the baffle is less than the sliding stroke distance of the lifting plate on the mounting part. It is used so that when the limiting part is released from the fixing of the mounting part, the lifting plate can drive the sealing plate to open the water outlet normally.

[0028] Optionally, the sealing element further includes a sealing ring, which is located at the bottom edge of the sealing plate, and an annular groove is formed at the bottom edge of the sealing plate corresponding to the sealing ring.

[0029] Compared with the prior art, the fire bucket provided by this utility model has the following beneficial effects:

[0030] (1) A fixed water outlet is opened at the bottom of the rigid barrel, and the barrel itself is a complete water storage chamber with low water storage volume loss; the sealing plate can be quickly opened or closed by longitudinal sliding between the lifting plate and the barrel. The structure is simple, the release is fast, and it is suitable for rapid fire extinguishing in complex terrains such as forests and hills.

[0031] (2) The mounting parts and the lifting plate form a longitudinal guide rail, and the tank can be quickly slid in or pulled out; the servo motor lock pin is electrically unlocked, and the tank is released instantly by the weight of the tank and the water inside the tank, thereby quickly releasing the water in the tank for rapid fire extinguishing.

[0032] (3) The independent sealing plate is rigidly linked with the lifting plate. When the barrel falls, the sealing plate remains stationary and immediately detaches from the outlet to achieve full-open drainage. After returning to its original position, the spring automatically presses the sealing plate to complete the full-closed water storage. The baffle and the limiting ring block are mechanically limited to ensure that the opening distance of the sealing plate is greater than the falling distance of the barrel, so as to avoid affecting the sealing plate's detachment from the outlet when the barrel falls. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of the overall structure of a fire bucket according to the present invention;

[0034] Figure 2 This is a schematic diagram showing the disassembly of the mounting components and the bucket body of a fire-fighting water bucket according to this utility model;

[0035] Figure 3 for Figure 1 Sectional view along line AA;

[0036] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0037] Figure 5 This is a schematic diagram of the sealing plate and sealing ring structure of a fire bucket according to the present invention.

[0038] In the diagram: 1. Water bucket; 101. Water outlet; 102. Lock hole; 11. Bucket body; 12. Mounting component; 121. Mounting block; 122. Drop-off fixing plate; 123. Limiting block; 2. Lifting assembly; 201. Limiting sliding hole; 21. Lifting plate; 22. Limiting component; 221. Steering motor; 222. Locking pin; 23. Lifting block; 3. Sealing component; 301. Movable cavity; 302. Annular groove; 31. Sealing plate; 32. Connecting component; 321. Top rod; 322. Connecting column; 323. Spring; 324. Baffle; 325. Limiting ring block; 33. Sealing rubber ring. Detailed Implementation

[0039] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0040] Please see Figure 1-5 The present application proposes a fire bucket 1, which includes a bucket 1, a hoisting assembly 2 and a sealing element 3.

[0041] like Figure 1 , Figure 3 As shown, the bucket 1 includes a bucket body 11 and mounting components 12. The bucket body 11 has a water outlet 101 at its bottom. There are two mounting components 12, which are symmetrically arranged on both sides of the top of the bucket body 11. The hoisting assembly 2 includes a hoisting plate 21 and a limiting component 22. The hoisting plate 21 is horizontally arranged on the top of the bucket body 11. The two ends of the hoisting plate 21 are respectively aligned with the two mounting components 12, and a limiting sliding hole 201 is opened at the alignment point for sliding connection to the mounting component 12. There are two sets of limiting components 22, which are respectively arranged on the hoisting plate 21 at the corresponding mounting component 12, for fixing or unfixing the mounting component 12. The sealing component 3 is arranged at the water outlet 101 and connected to the hoisting plate 21, for moving with the hoisting plate 21 to seal or open the water outlet 101.

[0042] Specifically, the rigid barrel 11 itself is a complete water storage chamber with only one outlet 101 at the bottom. It has no folds or hinges, maximizing the volume utilization. A longitudinal slide rail is formed between the mounting component 12 and the lifting plate 21, allowing the barrel 11 to be raised and lowered relative to the lifting plate 21 along the slide rail. When the limiting component 22 is released, the barrel 11, along with the water inside, falls together under its own weight. The sealing component 3 remains relatively stationary with the lifting plate 21 and instantly detaches from the outlet 101, achieving a rapid full opening with "the barrel 11 moving while the sealing plate 31 remains stationary." The entire action requires only one longitudinal slide, making the structure extremely simple and particularly suitable for rapid deployment in forest areas, hilly areas, and other fire zones without flat landing conditions.

[0043] In some embodiments, such as Figure 1-2 As shown, the mounting component 12 includes a mounting block 121, a delivery fixing plate 122, and a limiting block 123. The mounting block 121 is fixedly mounted on the top side wall of the barrel 11 and corresponds to the end of the lifting plate 21. The delivery fixing plate 122 is fixedly mounted on the mounting block 121, and is perpendicular to the lifting plate 21. Its top passes through the limiting sliding hole 201 and is slidably connected to it. The limiting block 123 is located on the top of the delivery fixing plate 122 and is used to restrict the delivery fixing plate 122 from sliding downward out of the limiting sliding hole 201. The lifting assembly 2 also includes two lifting blocks 23, which are respectively located at both ends of the lifting plate 21 for lifting the UAV.

[0044] Specifically, the mounting block 121, the placement fixing plate 122, and the limiting block 123 together form a linear guide rail, allowing the placement fixing plate 122 of the barrel 11 to slide back and forth on the lifting plate 21; the limiting block 123 forms a hard stop at the top to prevent the barrel 11 from slipping off; at the same time, it ensures that the guide rail is long enough to ensure that the sealing element 3 can be smoothly dislodged from the outlet 101. Meanwhile, the barrel 11 always moves in a straight line during the fall to avoid swaying, ensuring that the sealing plate 31 can accurately and quickly detach from the outlet 101, thus achieving reliable placement.

[0045] In some embodiments, such as Figure 1-2 As shown, the limiting component 22 includes a servo motor 221 and a locking pin 222. The servo motor 221 is fixedly mounted on the lifting plate 21 and is positioned corresponding to the deployment fixing plate 122. The servo motor 221 is connected to an external control device (the servo motor integrates a controller for receiving signals, which is a conventional method in this field). The locking pin 222 is driven to be connected to the servo motor 221. The deployment fixing plate 122 has a locking hole 102 opposite to the locking pin 222. The servo motor 221 can drive the locking pin 222 to insert or withdraw from the locking hole 102 to fix or release the deployment fixing plate 122.

[0046] Specifically, the servo motor 221 and the locking pin 222 form an electronically controlled "one-click unlocking" mechanism. When the drone reaches the fire site, the control signal triggers the servo motor 221 to rotate, and the locking pin 222 instantly disengages from the locking hole 102. The bucket 11, along with the water, immediately falls along the guide rail under its own weight, eliminating the need for the motor to continue consuming energy. After deployment, the drone brings the bucket 11 to the ground, resetting it. The servo motor 221 then reverses its movement, allowing the locking pin 222 to re-insert into the locking hole 102, thus locking the empty bucket again and enabling rapid cyclical operation. The entire process has a short response time and low energy consumption, making it suitable for continuous firefighting operations.

[0047] In some embodiments, such as Figure 3-4 As shown, the sealing element 3 includes a sealing plate 31 and a connecting element 32. The sealing plate 31 is located at the water outlet 101 at the bottom of the barrel 11 and is used to cover the top of the water outlet 101 for sealing. The connecting element 32 is connected between the sealing plate 31 and the lifting plate 21 and is used to make the sealing plate 31 move with the lifting plate 21 to seal or open the water outlet 101.

[0048] Specifically, the sealing plate 31 and the lifting plate 21 are linked by a rigid connector 32. When not in use, the sealing plate 31 is tightly attached to the outlet 101 under the action of the connector 32, forming an independent sealing surface. When in use, the entire barrel 11 moves down, and the sealing plate 31 immediately separates from the outlet 101 because the connector 32 and the lifting plate 21 remain relatively stationary, achieving instantaneous full opening of "barrel 11 moves, sealing plate 31 does not move", avoiding the delay and leakage risk caused by the folding of the soft bag.

[0049] like Figure 3-4 As shown, in some embodiments, the connector 32 includes a top rod 321, a connecting column 322, and a spring 323. One end of the top rod 321 is fixedly connected to the bottom of the lifting plate 21 and is set perpendicular to it. The bottom of the top rod 321 has a movable cavity 301. One end of the connecting column 322 is slidably disposed in the movable cavity 301, and the other end is fixedly connected to the top of the sealing plate 31. The sliding stroke distance of the connecting column 322 in the movable cavity 301 is less than the sliding stroke distance of the lifting plate 21 on the mounting member 12. The spring 323 is disposed in the movable cavity 301 and located on the top of the connecting column 322. It is used to drive the connecting column 322 to press down on the sealing plate 31 to seal the water outlet 101 when the water is not spraying.

[0050] Specifically, the top rod 321, the movable cavity 301, the connecting column 322, and the spring 323 form a floating clamping mechanism; when not in the release state, the spring 323 always presses the sealing plate 31 against the outlet 101 to ensure reliable sealing; once the tank 11 is released, the sliding stroke of the connecting column 322 is less than the falling stroke of the tank 11, and the compression of the spring 323 is insufficient to press the sealing port again, so the sealing plate 31 remains suspended, ensuring that the tank 11 can fully open for drainage the moment it falls, avoiding drainage problems caused by secondary clamping.

[0051] like Figure 3-4 As shown, in some embodiments, the connector 32 further includes a baffle 324 and a limiting ring block 325. The baffle 324 is located at the bottom of the movable cavity 301 and is located around the connecting column 322. The limiting ring block 325 is located at one end of the connecting column 322 inside the movable cavity 301 and is slidably connected to the inner wall of the movable cavity 301. The distance between the limiting ring block 325 and the baffle 324 is less than the sliding stroke distance of the lifting plate 21 on the mounting member 12. This allows the lifting plate 21 to drive the sealing plate 31 to open the outlet 101 normally when the limiting member 22 releases the fixing of the mounting member 12.

[0052] Specifically, the baffle 324 and the limiting ring 325 constitute a mechanical hard limit; when the limiting ring 325 moves down, it abuts against the baffle 324, preventing the connecting column 322 from continuing to descend. When the tank 11 is released, the minimum opening distance between the sealing plate 31 and the outlet 101 is precisely controlled. This opening distance is always less than the actual falling distance of the tank 11, ensuring that the sealing plate 31 will not re-fit the outlet 101 due to the spring 323 rebound under any working condition, ensuring that the water in the tank can be completely emptied with one deployment, thus improving the fire extinguishing efficiency.

[0053] like Figure 4-5 As shown, in some embodiments, the seal 3 further includes a sealing ring 33, which is disposed at the bottom edge of the sealing plate 31, and an annular groove 302 is formed at the bottom edge of the sealing plate 31 corresponding to the sealing ring 33.

[0054] Specifically, the sealing ring 33 forms a line contact seal after being embedded in the annular groove 302, which reduces the pressure requirement on the sealing plate 31, reduces the load on the spring 323, and improves the sealing performance.

[0055] Workflow: After the drone carrying the fire bucket 1 flies to the target area, it is suspended by the lifting block 23 and the lifting plate 21. The servo motor 221 receives the command to drive the locking pin 222 to disengage from the locking hole 102. The bucket body 11 and the water inside slide down the linear guide rail formed by the deployment fixing plate 122 and the limiting block 123 under its own weight. At this time, the lifting plate 21 and the sealing plate 31 are relatively stationary. The sealing plate 31 immediately detaches from the water outlet 101 to achieve full drainage. After emptying, the drone brings the bucket body 11 to the ground, so that the bucket body 11 returns to its original position along the guide rail. The spring 323 pushes the sealing plate 31 to press the water outlet 101 again. The servo motor 221 is then controlled to insert the locking pin 222 into the locking hole 102 to lock, completing one rapid fire extinguishing cycle. No manual intervention is required throughout the process.

[0056] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0057] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0058] Although embodiments of the present 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 present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A fire bucket, characterized in that, Includes a bucket (1), a hoisting assembly (2), and a seal (3), wherein, The bucket (1) includes a bucket body (11) and a mounting component (12). The bottom of the bucket body (11) is provided with a water outlet (101). The mounting component (12) includes two components, which are symmetrically arranged on both sides of the top of the bucket body (11). The hoisting assembly (2) includes a hoisting plate (21) and a limiting member (22). The hoisting plate (21) is horizontally positioned on the top of the barrel (11). The two ends of the hoisting plate (21) are respectively positioned opposite to the two mounting members (12), and a limiting sliding hole (201) is opened at the alignment position for sliding connection to the mounting member (12). The limiting member (22) includes two sets, which are respectively provided on the hoisting plate (21) at the corresponding mounting member (12) for fixing or unfixing the mounting member (12). The sealing element (3) is located at the outlet (101) and connected to the lifting plate (21) for moving with the lifting plate (21) to seal or open the outlet (101).

2. A fire pail according to claim 1, wherein, The mounting component (12) includes a mounting block (121), a delivery fixing plate (122), and a limiting block (123), wherein, The mounting block (121) is fixedly installed on the top side wall of the barrel (11) and corresponds to the end of the lifting plate (21); The launching fixing plate (122) is fixed on the mounting block (121). The launching fixing plate (122) is set perpendicular to the lifting plate (21), and its top passes through the limiting sliding hole (201) upward and is slidably connected to it. The limiting block (123) is located on the top of the delivery fixing plate (122); it is used to restrict the delivery fixing plate (122) from sliding down through the limiting sliding hole (201).

3. A fire pail according to claim 2, wherein, The limiting component (22) includes a servo motor (221) and a locking pin (222), wherein, The servo motor (221) is fixed on the hoisting plate (21) and is set on the corresponding fixed plate (122). The servo motor (221) is connected to the signal of the external control equipment. The locking pin (222) is driven to be connected to the servo motor (221). The release fixing plate (122) has a locking hole (102) facing the locking pin (222). The servo motor (221) can drive the locking pin (222) to insert or withdraw from the locking hole (102) for fixing or releasing the release fixing plate (122).

4. A fire pail according to claim 1, wherein, The hoisting assembly (2) also includes two hoisting blocks (23), which are respectively located at both ends of the hoisting plate (21) for hoisting the UAV.

5. A fire pail according to claim 1, wherein, The sealing element (3) includes a sealing plate (31) and a connecting element (32), wherein, The sealing plate (31) is located at the water outlet (101) at the bottom of the barrel (11) and is used to cover the top of the water outlet (101) for sealing. The connector (32) is connected between the sealing plate (31) and the lifting plate (21) to allow the sealing plate (31) to move with the lifting plate (21) to seal or open the outlet (101).

6. A fire pail according to claim 5, wherein, The connector (32) includes a push rod (321), a connecting post (322), and a spring (323), wherein, One end of the top rod (321) is fixedly connected to the bottom of the hoisting plate (21) and is set perpendicular to it. The bottom of the top rod (321) is provided with a movable cavity (301). One end of the connecting column (322) is slidably disposed in the movable cavity (301), and the other end is fixedly connected to the top of the sealing plate (31). The sliding stroke distance of the connecting column (322) in the movable cavity (301) is less than the sliding stroke distance of the hoisting plate (21) on the mounting part (12). The spring (323) is located in the active cavity (301) and at the top of the connecting column (322) to drive the connecting column (322) to press down the sealing plate (31) to seal the water outlet (101) in the non-spraying state.

7. A fire pail according to claim 6, wherein, The connector (32) further includes a stop (324) and a limiting ring block (325), wherein, The baffle (324) is located at the bottom of the movable cavity (301) and around the connecting column (322); The limiting ring block (325) is located at one end of the connecting column (322) inside the movable cavity (301) and is slidably connected to the inner wall of the movable cavity (301). The distance from the limiting ring block (325) to the baffle (324) is less than the sliding stroke distance of the lifting plate (21) on the mounting part (12). When the limiting part (22) releases the fixing of the mounting part (12), the lifting plate (21) can drive the sealing plate (31) to open the outlet normally.

8. A fire pail according to any one of claims 5-7, characterized in that The sealing element (3) also includes a sealing ring (33), which is located at the bottom edge of the sealing plate (31), and an annular groove (302) is provided at the bottom edge of the sealing plate (31) corresponding to the sealing ring (33).