Drone fire extinguishing bucket
The drone-based firefighting bucket, with its flexible barrel body and foldable support frame structure, solves the problems of large size and small water capacity of existing drone-based firefighting buckets, achieving the effects of rapid folding, simplified installation, and increased water capacity.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 常德市消防救援支队
- Filing Date
- 2025-07-17
- Publication Date
- 2026-06-26
AI Technical Summary
Existing drone-mounted fire-fighting water buckets are bulky due to their rigid fixed shape, making storage and transportation difficult, and their water capacity is limited, which affects emergency response efficiency.
The water bucket features a flexible body and a foldable support frame, combined with a remote-controlled waterproof electric push rod and a damped rotating connection, enabling rapid folding and unfolding of the bucket, simplifying the installation process, increasing water capacity, and improving transportation convenience.
It enables increased water capacity while maintaining a fixed drone load capacity, simplifies rapid installation and use at fire sites, and meets emergency deployment needs.
Smart Images

Figure CN224404235U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fire-fighting equipment technology, specifically to a drone-mounted fire-fighting bucket. Background Technology
[0002] With the rapid development of drone technology, the weight that drones can vertically lift ranges from tens of kilograms to hundreds of kilograms. Drones lifting buckets filled with hundreds of kilograms of water for forest fire fighting in mountainous areas has been a very successful application.
[0003] Existing drone-based fire-fighting water buckets mostly use rigid iron rings to support the bucket opening, connected to a bracket via rigid fixing points. Their structural features include: the bucket opening is opened by rigid iron rings, and the rigid fixing points are fixed to the bracket, ensuring the bucket opening remains open when dispensing water. However, this structure has significant drawbacks: the rigid fixing results in a fixed bucket shape, large size, and significant space requirements for storage and transportation; folding and storage are difficult, hindering quick opening and installation at a fire scene and impacting emergency response efficiency; and given the limited weight capacity of drones, the considerable weight of the bucket itself limits the water capacity. Utility Model Content
[0004] This utility model aims to at least partially solve one of the technical problems in the related art.
[0005] Therefore, embodiments of this utility model propose a drone-based fire extinguishing bucket. The frame structure reduces the weight of the bucket itself, while increasing the water capacity under the premise of fixed drone load capacity. The bucket can be quickly folded and unfolded, and its small volume in the compressed state facilitates storage and bulk transportation. At the same time, the installation process is simple, allowing for quick opening and installation at the fire scene and timely deployment, meeting the emergency deployment needs at fire scenes.
[0006] According to an embodiment of the present utility model, the drone fire extinguishing bucket includes: a support frame, the support frame including a top support, a bottom support and a support rod; the top and bottom of the support rod are respectively connected to the top support and the bottom support; the top support is in the shape of a ring, and the ring-shaped top support forms the bucket mouth structure of the bucket; the bottom support includes a plate-shaped bottom plate, and the bottom support forms the bucket bottom structure of the bucket.
[0007] A flexible barrel body is fixedly covered on the outside of the support frame. An opening is provided on the bottom plate, which penetrates downward through the flexible barrel body and connects to the outside of the hanging barrel.
[0008] A connecting assembly comprising multiple connecting straps evenly distributed and fixed to the outer surface of a flexible barrel, each connecting strap having at least a portion of its length fixed to a position where it covers the top support of the flexible barrel, and each connecting strap extending upwards beyond the flexible barrel exterior; and
[0009] A sealing assembly that controls the opening and closing of an opening.
[0010] In some embodiments, the top of the support rod is connected to the top support via a first connector with damping rotation; the bottom of the support rod is connected to the bottom support via a second connector with damping rotation.
[0011] In some embodiments, the bottom support further includes a connecting rod fixed to the edge of the base plate, the connecting rod being perpendicular to the base plate and located above the base plate; the top of the connecting rod and the bottom of the support rod are connected by a second connector for damped rotation.
[0012] In some embodiments, both the first connector and the second connector are damping hinges.
[0013] In some embodiments, the connecting assembly further includes a connecting seat fixed to the center of the bottom of the bucket, and the bottom ends of the plurality of connecting straps are fixed to the connecting seat.
[0014] In some embodiments, a connecting ring is installed at the top of each connecting strip.
[0015] In some embodiments, the sealing assembly includes a remote-controlled waterproof electric push rod and a sealing element. The remote-controlled waterproof electric push rod is installed inside the bucket and located at the bottom of the bucket, and the sealing element is fixedly installed on the connector of the remote-controlled waterproof electric push rod.
[0016] In some embodiments, the sealing element includes a mounting head and a sealing plate. The mounting head is fixedly installed to the connector of the remote-controlled waterproof electric push rod by bolts. The sealing plate is laid flat on the base plate and can completely cover the opening.
[0017] In some embodiments, a sealing ring is fixed in a groove on the bottom surface of the sealing plate, and after the sealing plate completely covers the opening 223, the sealing ring is completely located outside the opening.
[0018] In some embodiments, the flexible barrel may be made of canvas. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of a drone fire extinguishing bucket according to an embodiment of the present invention.
[0020] Figure 2 yes Figure 1 A diagram from another perspective.
[0021] Figure 3 This is a schematic diagram showing the installation and cooperation of the support frame 200 and the sealing member 500 according to another embodiment of the present invention.
[0022] Figure 4 yes Figure 3 A schematic diagram of the structure in its folded state.
[0023] Figure 5 This is a schematic diagram showing the installation and cooperation of the bottom support 220 and the sealing member 500 according to another embodiment of the present invention.
[0024] Figure 6 This is a schematic diagram showing the installation and cooperation of the bottom support 220 and the sealing member 500 according to another embodiment of the present invention.
[0025] Figure label:
[0026] Flexible barrel body 100; support frame 200; top support 210; bottom support 220; bottom plate 221; connecting rod 222; opening 223; bottom cover plate 224; support rod 230; connecting part 231; first connecting piece 240; second connecting piece 250; connecting assembly 300; connecting seat 310; connecting belt 320; connecting ring 330; remote-controlled waterproof electric push rod 400; sealing piece 500; mounting head 510; sealing plate 520; fixed bracket 600. Detailed Implementation
[0027] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.
[0028] like Figures 1-3 As shown, the drone fire extinguishing bucket according to an embodiment of the present invention includes a flexible bucket body 100, a support frame 200, a connecting component 300, and a sealing component.
[0029] like Figures 1-3 As shown, the flexible barrel 100 is fixedly covered on the outside of the support frame 200 to form a hanging barrel with a support structure. The flexible barrel 100 can be made of waterproof canvas. The flexible material facilitates the folding and unfolding of the hanging barrel. The support frame 200 can be made of stainless steel as a whole.
[0030] like Figures 1-3 As shown, the flexible barrel 100 completely wraps the annular top support 210 at the top of the bucket, and the canvas is fixed to the top support 210 by reliable waterproof bonding or sewing.
[0031] like Figures 2-6As shown, the bottom of the bucket is provided with a bottom support 220, and the bottom support 220 is covered with a flexible bucket body 100. The canvas is bonded and fixed to the bottom surface of the base plate 221 by waterproof adhesive. Furthermore, it can be fixed by bolts passing through the canvas and the base plate 221. A sealing gasket can be added to prevent water leakage at the bolt connection.
[0032] Furthermore, such as Figures 5-6 As shown, a bottom cover plate 224 adapted to the bottom size of the bucket can be added to the bottom of the flexible bucket 100 (the flexible bucket 100 is located between the bottom plate 221 and the bottom cover plate 224). Figures 5-6 (The flexible bucket body 100 is not shown in the figure). At this time, the bottom of the bucket consists of a bottom plate 221, a canvas, and a bottom cover plate 224 from top to bottom. The bucket is fixed by bolts passing through the bottom of the bucket. A sealing gasket can be added to prevent water leakage at the bolt connection. Of course, the bottom cover plate 224 also has holes of the same specifications at the position corresponding to the opening 223.
[0033] like Figure 2 As shown, the connecting assembly 300 includes a connecting seat 310, a connecting strap 320, and a connecting ring 330. The connecting seat 310 is fixed to the center of the bottom of the bucket, and the bottom ends of the multiple connecting straps 320 are all fixed to the connecting seat 310. To a certain extent, this supports the weight of the entire bucket, reduces the tension on the flexible bucket 100 when it is full of water, and improves the service life of the flexible bucket 100.
[0034] The preferred connecting straps 320 are four in number. The connecting straps 320 are used to connect the bucket and the drone. The connecting straps 320 can be made of nylon material, which is lightweight and has good tensile strength and wear resistance. The four connecting straps 320 are evenly distributed and fixed on the outer surface of the flexible bucket 100. At least part of the length of the strap of each connecting strap 320 is fixed at the position where the flexible bucket 100 covers the top support 210. Since the top support 210 is the main stress point during the use of the bucket, the parts of the connecting straps 320 corresponding to the top support 210 can be focused on for fixing.
[0035] A connecting ring 330 is installed at the top of each connecting strip 320. The top of the connecting strip 320 is directly connected to the hook configured on the drone. Therefore, the installed connecting ring 330 can play a certain protective role and reduce the breakage or tearing of the top of the connecting strip 320.
[0036] like Figures 3-4 As shown, the top of the support rod 230 is connected to the top support 210 via a first connector 240 with damping rotation; the bottom of the support rod 230 is connected to the connecting rod 222 via a second connector 250 with damping rotation; when the bucket is not in use, Figure 3In this state, the top support 210 along with the canvas can be pressed down and folded first, and then the bottom support 220 along with the canvas can be pushed up and folded, so that the support frame 200 is formed. Figure 4 The shown configuration facilitates the storage, packaging, and transportation of the bucket. When manufacturing the bucket, the canvas area on the bucket surface can be appropriately increased to ensure that the bucket surface is not too tight when folded, thus improving the ease of operation.
[0037] like Figures 3-4 As shown, both the first connector 240 and the second connector 250 are damping hinges. A connecting portion 231 for mounting the first connector 240 is provided at the top of the support rod 230. The damping hinge can maintain a rigid connection between the top support 210, the bottom support 220, and the support rod 230 to a certain extent. Since the bucket is suspended below the drone during use, and the main stress point of the bucket is the top support 210, combined with... Figure 4 The extreme position of the top support 210 rotating upwards is as follows: Figure 3 As shown, the extreme position of the bottom support 220 rotating downwards is as follows: Figure 3 As shown; therefore, due to the weight of the bucket itself, the bucket can maintain its shape when both the top support 210 and the bottom support 220 are deployed.
[0038] During the process of controlling the drone to collect water, the drone can be controlled to fly horizontally and slowly after the bottom of the bucket touches the water surface. The bottom of the bucket is subject to water resistance, which causes the top of the bucket to tilt. After the bucket tilts completely, the drone can be controlled to descend and hover to collect water. Due to the weight of the bucket, it sinks to the water surface to collect water. During this process, the first connecting piece 240 and the second connecting piece 250 will not be subjected to significant force. After the water collection is completed and the bucket is pulled up, the top support 210 and the bottom support 220 can return to their original positions due to the weight of the bucket and the weight of the water. Figure 3 The extreme positions of the damped rotation are shown.
[0039] like Figures 3-6 As shown, the sealing assembly includes a remote-controlled waterproof electric push rod 400 and a sealing component 500. The remote-controlled waterproof electric push rod 400 is installed inside the bucket and located at the bottom of the bucket.
[0040] Depending on the specifications and dimensions of the bucket, the remote-controlled waterproof electric actuator 400 in some embodiments can be the "Bostoo" brand model BST-YF-FS electric actuator, with a stroke of 150mm, DC voltage of 12V, speed of 30mm / S, and maximum thrust of 300N. Its installation method, working principle, and control principle are all existing technologies and will not be described in detail here. Its power supply and controller can be integrated into the waterproof box and fixed on the bucket. During use, it can be remotely controlled by its compatible remote controller.
[0041] In some embodiments, such as Figures 5-6As shown, at the connection point between the base plate 221 and the connecting rod 222, there is an installation platform slightly higher than the base plate 221. The installation platform is used to support the tail end of the remote-controlled waterproof electric push rod 400. The front end of the remote-controlled waterproof electric push rod 400 is installed and fixed by a fixing bracket 600. The fixing bracket 600 has an installation opening in the middle that is adapted to the size of the front end of the remote-controlled waterproof electric push rod 400, and a slot is provided at the bottom of the fixing bracket 600 to facilitate the passage of the sealing plate 520. The two ends of the fixing bracket 600 are fixed to the edge of the base plate 221 by bolts.
[0042] In some embodiments, such as Figures 5-6 As shown, in addition to the opening 223, the bottom plate 221 and the bottom cover plate 224 are also provided with other openings, which can reduce the weight of the bottom support 220. The other openings are blocked by the flexible barrel 100 between the bottom plate 221 and the bottom cover plate 224.
[0043] like Figures 3-6 As shown, the sealing component 500 includes an installation head 510 and a sealing plate 520. The installation head 510 is fixedly installed to the connector of the remote-controlled waterproof electric push rod 400 by bolts. The bottom of the installation head 510 is welded and fixed to the sealing plate 520. The sealing plate 520 is laid flat on the base plate 221 and can completely cover the opening 223.
[0044] During the operation of water collection and retrieval in fire rescue, after the drone arrives at the water collection point, the operators near the water collection point can control the drone to collect water by tilting the bucket as described above, or first use the remote control to control the remote waterproof electric push rod 400 to drive the sealing plate 520 to open the opening 223, and then control the drone to slowly descend so that the bottom of the bucket can enter water through the opening 223 until the entire bucket is submerged. Then, use the remote control to control the remote waterproof electric push rod 400 to drive the sealing plate 520 to close the opening 223 to collect water. After the drone carries water to the fire scene, use the remote control to control the remote waterproof electric push rod 400 to drive the sealing plate 520 to open the opening 223, and at the same time control the drone to carry out water spraying and fire extinguishing operations.
[0045] Furthermore, a sealing ring is fixed in a groove on the bottom surface of the sealing plate 520. After the sealing plate 520 completely covers the opening 223, the sealing ring is completely located outside the opening 223, that is, the size of the sealing ring is larger than the size of the opening 223. After the drone collects water, the sealing ring helps to reduce water leakage. During the movement of the sealing plate 520, the sealing ring slides with damping between itself and the bottom plate 2. To prevent the opening 223 from wearing or getting the sealing ring stuck, the top edge of the opening 223 can be rounded; or the sealing ring can be fixed in a groove at the edge of the opening 223, which can achieve the same sealing effect.
[0046] The following description, with reference to the accompanying drawings, describes a specific exemplary drone fire extinguishing bucket according to the present invention.
[0047] like Figures 1-3 As shown, the drone fire extinguishing bucket of this utility model embodiment includes a flexible bucket body 100, a support frame 200, a connecting component 300, and a sealing component.
[0048] like Figures 3-4 As shown, the support frame 200 includes a top support 210, a bottom support 220, and a support rod 230; the top and bottom of the support rod 230 are respectively connected to the top support 210 and the bottom support 220; the top support 210 is annular, and the annular top support 210 forms the opening structure of the bucket; the bottom support 220 includes a plate-shaped bottom plate 221, and the bottom support 220 forms the bottom structure of the bucket.
[0049] like Figures 1-2 As shown, the flexible barrel 100 is fixedly covered on the outside of the support frame 200. An opening 223 is provided on the bottom plate 221, and the opening 223 penetrates downward through the flexible barrel 100 to connect to the outside of the hanging barrel.
[0050] like Figures 1-2 As shown, the connecting assembly 300 includes a plurality of connecting straps 320, which are evenly distributed and fixed on the outer surface of the flexible barrel 100. At least a portion of the length of the strap on each connecting strap 320 is fixed at the position where the flexible barrel 100 covers the top support 210, and at least a portion of the length of the strap on each connecting strap 320 extends upward to the outside of the flexible barrel 100.
[0051] like Figure 3 As shown, the top of the support rod 230 is connected to the top support 210 by a first connector 240 for damping rotation; the bottom of the support rod 230 is connected to the bottom support 220 by a second connector 250 for damping rotation.
[0052] like Figures 3-4 As shown, the sealing assembly includes a remote-controlled waterproof electric push rod 400 and a sealing component 500. The remote-controlled waterproof electric push rod 400 is installed inside the bucket and located at the bottom of the bucket. The sealing component 500 is fixedly installed on the connector of the remote-controlled waterproof electric push rod 400. The sealing component 500 includes an mounting head 510 and a sealing plate 520. The mounting head 510 is fixedly installed to the connector of the remote-controlled waterproof electric push rod 400 by bolts. The sealing plate 520 is laid flat on the base plate 221 and can completely cover the opening 223.
[0053] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to 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.
[0054] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0055] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0056] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.
[0057] In this utility model, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Furthermore, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.
[0058] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.
Claims
1. A drone-mounted fire extinguishing bucket, characterized in that, include: A support frame (200) includes a top support (210), a bottom support (220), and a support rod (230); the top and bottom of the support rod (230) are respectively connected to the top support (210) and the bottom support (220); the top support (210) is annular, and the annular top support (210) forms the opening structure of the bucket; the bottom support (220) includes a plate-shaped bottom plate (221), and the bottom support (220) forms the bottom structure of the bucket; A flexible barrel (100) is fixedly covered on the outside of a support frame (200). An opening (223) is provided on the bottom plate (221). The opening (223) extends downward through the flexible barrel (100) and connects to the outside of the hanging barrel. The connecting component (300) includes a plurality of connecting straps (320), which are evenly distributed and fixed on the outer surface of the flexible barrel (100). At least a portion of the length of each connecting strap (320) is fixed at the position where the flexible barrel (100) covers the top support (210), and at least a portion of the length of each connecting strap (320) extends upward to the outside of the flexible barrel (100). and A sealing assembly that controls the opening and closing of the opening (223).
2. The drone fire extinguishing bucket according to claim 1, characterized in that, The top of the support rod (230) is connected to the top support (210) by a damped rotational connection via a first connector (240); the bottom of the support rod (230) is connected to the bottom support (220) by a second connector (250) by a damped rotational connection.
3. The drone fire extinguishing bucket according to claim 2, characterized in that, The bottom support (220) also includes a connecting rod (222) fixed at the edge of the base plate (221), the connecting rod (222) being perpendicular to the base plate (221) and located above the base plate (221); the top of the connecting rod (222) and the bottom of the support rod (230) are connected by a second connector (250) for damping rotation.
4. The drone fire extinguishing bucket according to claim 2, characterized in that, Both the first connector (240) and the second connector (250) are damped hinges.
5. The drone fire extinguishing bucket according to claim 1, characterized in that, The connecting assembly (300) also includes a connecting seat (310), which is fixed to the center of the bottom of the bucket, and the bottom ends of the multiple connecting straps (320) are fixed to the connecting seat (310).
6. The drone fire extinguishing bucket according to claim 1, characterized in that, A connecting ring (330) is installed at the top of each of the connecting strips (320).
7. The drone fire extinguishing bucket according to claim 1, characterized in that, The sealing assembly includes a remote-controlled waterproof electric push rod (400) and a sealing component (500). The remote-controlled waterproof electric push rod (400) is installed inside the bucket and located at the bottom of the bucket. The sealing component (500) is fixedly installed on the connector of the remote-controlled waterproof electric push rod (400).
8. The drone fire extinguishing bucket according to claim 7, characterized in that, The sealing component (500) includes an installation head (510) and a sealing plate (520). The installation head (510) is fixedly installed to the connector of the remote-controlled waterproof electric push rod (400) by bolts. The sealing plate (520) is laid flat on the base plate (221) and can completely cover the opening (223).
9. The drone fire extinguishing bucket according to claim 8, characterized in that, A sealing ring is fixed in a groove on the bottom surface of the sealing plate (520). After the sealing plate (520) completely covers the opening (223), the sealing ring is completely located outside the opening (223).
10. The drone fire extinguishing bucket according to any one of claims 1-9, characterized in that, The flexible barrel (100) can be made of canvas.