Water sprinkling device of fire rescue unmanned aerial vehicle

Abstract

The invention discloses a sprinkling device of a fire rescue unmanned aerial vehicle, and relates to the technical field of fire rescue. The device comprises a bottom plate, an unmanned aerial vehicle is fixedly connected to the upper end of the bottom plate, a connecting structure is fixedly connected to the lower end face of the bottom plate, a water storage structure is arranged on the lower end face of the connecting structure, lifting structures are symmetrically arranged between the connecting structure and the water storage structure along the center line, and lifting driving structures are arranged in the middles of inner cavities of the lifting structures; a buffering structure is fixedly connected to one side of an inner cavity of the connecting structure, a transmission structure is slidably connected to the outer surface of the buffering structure, and a water conveying structure is arranged between the spraying structure and the water storage structure. The negative pressure formed in the inner cavity when the folding type water storage frame extends is used for automatically sucking water flow in a water area, manual water injection, external water pump connection or water source presetting are not needed, water can be directly and rapidly taken from natural water sources such as rivers, lakes and pools on rescue sites, the rescue preparation time is remarkably shortened, and the'golden response 'requirement for fire fighting is met.

Description

Technical Field

[0001] This invention relates to the field of fire rescue technology, and in particular to a water spraying device for fire rescue drones. Background Technology

[0002] Firefighting and rescue drones are unmanned aircraft controlled by radio remote control equipment and onboard programs. They are mainly used in the field of firefighting and rescue. Firefighting and rescue drones are widely used in various fire and emergency rescue scenarios, including chemical plant fires, forest fires and high-rise fires. They are highly adaptable to the environment, can perform missions in adverse weather conditions, and have a large payload capacity, enabling them to carry a variety of rescue supplies.

[0003] Existing fire-fighting drone water spraying devices mostly use fixed water tanks, requiring manual pre-filling or relying on external water pumps to connect to the water source. This makes it impossible to quickly obtain water at the rescue site, resulting in delayed response and missing the golden time for fire extinguishing. Furthermore, the water storage structure is mostly of fixed volume, occupying a large space when not in operation, which increases the drone's wind resistance and reduces its endurance, and is inconvenient for transportation and storage. Existing devices mostly use electrically controlled valves to control the water storage seal, which is prone to circuit failures leading to water leakage; or there is no effective water-stopping structure, and the water flow sloshing during flight causes the drone's center of gravity to shift, increasing the risk of crash. In addition, the water suction pipe of existing devices is mostly designed in a fixed position. When the drone tilts, pitches, or turns, the water suction pipe is prone to leaving the water surface or sucking in air, causing water supply interruption and affecting the fire extinguishing effect.

[0004] Therefore, the existing water spraying device for fire rescue drones cannot meet the needs of actual use, so there is an urgent need for improved technology on the market to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to provide a water spraying device for fire rescue drones, which solves the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution: This invention relates to a water spraying device for a fire rescue drone, comprising a base plate, a drone fixedly connected to the upper end of the base plate, a connecting structure fixedly connected to the lower end of the base plate, a water storage structure provided on the lower end of the connecting structure, a lifting structure symmetrically arranged along the center line between the connecting structure and the water storage structure, a lifting drive structure provided in the middle of the inner cavity of the lifting structure, a buffer structure fixedly connected to one side of the inner cavity of the connecting structure, a transmission structure slidably connected to the outer surface of the buffer structure, a spraying structure provided on the side of the transmission structure away from the connecting structure, and a water conveying structure provided between the spraying structure and the water storage structure.

[0007] Preferably, the drone includes a drone body fixedly connected to the middle of the upper surface of the base plate, and a mounting groove is provided in the middle of the outer surface of the drone body. Drone propellers are rotatably connected to the four corners of the inner cavity of the mounting groove.

[0008] Preferably, the connection structure includes connecting columns that are uniformly and fixedly connected to the four corners of the lower end face of the base plate, a connecting plate that is fixedly connected to the lower end face of the connecting columns, and a drive control component that is provided in the middle of the upper end face of the connecting plate. The drive control assembly includes a drive control module fixedly connected to the middle of the upper surface of the connecting plate. Connecting cables are driven to the middle of both the left and right sides of the drive control module. The connecting cables pass through the connecting plate. An elastic transmission cable is fixedly connected to the end of the connecting cable away from the drive control module. The end of the elastic transmission cable away from the connecting cable is electrically connected to the lifting drive structure.

[0009] Preferably, the water storage structure includes a foldable water storage rack fixedly connected to the lower end face of the connecting plate, a sealing plate fixedly connected to the lower end face of the foldable water storage rack, a water inlet in the middle of the lower end face of the sealing plate, and a water inlet structure provided above the water inlet on the upper end face of the sealing plate. The water inlet structure includes baffles that are symmetrically rotated and connected to both sides above the water inlet via brackets. A counterweight is fixedly connected to one end of the lower end face of the baffle. The size of the baffle is larger than the inner cavity size of the water inlet.

[0010] Preferably, the lifting structure includes a rotating frame symmetrically fixedly connected on both sides between the connecting plate and the sealing plate along the center line. A lifting rod is rotatably connected to the inner cavity of the rotating frame. A connecting slider is rotatably connected between two adjacent lifting rods through the rotating frame. The connecting slider is slidably connected to the inner cavity of the lifting drive structure.

[0011] Preferably, the lifting drive structure includes a lifting drive frame slidably disposed between the connecting plate and the sealing plate. A rotating rod is rotatably connected to the inner cavity of the lifting drive frame. A connecting slider is symmetrically slidably connected to the inner cavity of the lifting drive frame. Two sections of threads in opposite directions are symmetrically opened on the outer surface of the rotating rod. The rotating rod passes through the connecting slider and is threadedly connected. A lifting motor is fixedly connected to the inner cavity of the lifting drive frame between the rotating rods. The output end of the lifting motor is fixedly connected to the rotating rod. The end of the elastic transmission cable away from the connecting cable is electrically connected to the lifting motor.

[0012] Preferably, the buffer structure includes a sliding rod symmetrically fixedly connected between two connecting columns on one side, a buffer slider symmetrically slidably connected to the outer surface of the sliding rod, a buffer spring movably sleeved in the middle of the outer surface of the sliding rod, the buffer spring being drivenly connected between the two buffer sliders, and a transmission structure being provided on the front end face of the buffer slider.

[0013] Preferably, the transmission structure includes a transmission rod rotatably connected to the front end face of the buffer slider via a bracket. The end of the transmission rod away from the buffer slider is rotatably connected to a placement plate via the bracket. A connecting groove is provided in the middle of the front end face of the placement plate. A water conveying structure is provided in the inner cavity of the connecting groove. A spraying structure is provided in the middle of the front end face of the connecting groove.

[0014] Preferably, the water conveying structure includes a water suction pipe fixedly connected to the middle of the lower end face of the connecting plate, a gravity ball fixedly connected to the lower end of the water suction pipe, the inner cavity of the water suction pipe penetrating the connecting plate and the gravity ball, a water conveying pipe being drivenly connected between the middle of the upper end face of the connecting plate and the inner cavity of the connecting groove, the water conveying pipe being a corrugated pipe, the inner cavity of the water suction pipe and the inner cavity of the water conveying pipe being interconnected, and a water pump fixedly connected to the lower end face of the connecting plate, the water pump being interconnected with the water suction pipe.

[0015] Preferably, the spraying structure includes a spraying frame fixedly connected to the front end face of the placement plate, an installation sleeve rotatably connected to the inner cavity of the spraying frame, an electric telescopic rod rotatably connected to the placement plate on both sides of the outer surface of the installation sleeve via a bracket, a nozzle threadedly connected to the inner cavity of the installation sleeve, and the rear end face of the installation sleeve communicating with the water supply pipe.

[0016] The present invention has the following beneficial effects: This invention utilizes a lifting drive structure and a foldable water storage rack in a mechanical linkage to automatically draw water from the water source by leveraging the negative pressure created within the extended cavity of the foldable water storage rack. This eliminates the need for manual water injection, external water pumps, or pre-set water sources, allowing for rapid water extraction directly from natural water sources such as rivers, lakes, and pools at the rescue site. This significantly shortens rescue preparation time and meets the "golden response" requirement for firefighting. Furthermore, the foldable water storage rack's extendable design reduces its volume when not in use, lowering wind resistance and optimizing the drone's endurance and operational flexibility. It also facilitates equipment storage, transportation, and maintenance.

[0017] This invention employs a mechanical linkage structure between a flow deflector and a counterweight. When water is drawn in, the water pressure automatically pushes open the flow deflector. After the drone ascends, the counterweight drives the flow deflector to return to its original position and seal the water storage chamber through gravity. One-way water stoppage can be achieved without additional electrically controlled valves, effectively preventing water sloshing and leakage during flight, preventing the drone's center of gravity from shifting, ensuring structural stability and safety during flight, and reducing the risks of high-altitude operations.

[0018] This invention utilizes a gravity ball at the end of the water suction pipe, which adaptively adjusts its position according to the drone's flight attitude (tilt, pitch, turn, etc.), ensuring the water suction pipe always fits snugly against the bottom of the water storage structure, achieving continuous and stable water delivery unaffected by flight attitude. The water delivery structure, through the cooperation of the water pump, water suction pipe, and water delivery pipe, ensures stable water supply pressure and flow, meeting the spray intensity requirements for fire extinguishing. Simultaneously, the electric telescopic rod drives the nozzle to rotate left and right within the spray frame, flexibly adjusting the spray angle to achieve multi-angle, directional, and wide-area precise spraying. This not only targets the fire point to improve fire extinguishing efficiency but also expands the coverage area, reduces water waste, and adapts to fire rescue scenarios at different heights and locations, enhancing rescue applicability.

[0019] This invention utilizes a buffer structure composed of a connecting groove, a transmission rod, a buffer slider, and a buffer spring. When a reverse force is generated during spraying, the expansion and contraction of the buffer spring absorbs the impact energy, effectively counteracting the recoil force and preventing the drone from deviating, swaying, or even crashing due to the recoil force. This significantly improves the stability and flight safety of high-altitude operations. At the same time, the buffer structure can absorb the mechanical impact during the spraying process, reduce component fatigue wear, extend the overall service life of the drone and the spraying device, and reduce equipment maintenance costs.

[0020] Of course, any product implementing this invention does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a front-view stereoscopic structural diagram of the present invention; Figure 2 This is a side view of the three-dimensional structure of the present invention. Figure 3 This is a schematic diagram of the transverse half-section three-dimensional structure of the present invention; Figure 4 This is a schematic diagram of the longitudinal half-section three-dimensional structure of the present invention; Figure 5 This is a schematic diagram of the installation structure of the water storage structure of the present invention; Figure 6 This is a schematic diagram of the installation structure of the transmission structure of the present invention; Figure 7 For the present invention Figure 4 Enlarged structural diagram of region A in the middle; Figure 8For the present invention Figure 5 A magnified structural diagram of region B in the middle.

[0023] The attached diagram lists the components represented by each number as follows: 1. Base plate; 2. UAV; 21. UAV body; 22. Mounting slot; 23. UAV propeller; 3. Connection structure; 31. Connecting column; 32. Connecting plate; 33. Drive control assembly; 331. Drive control module; 332. Connecting cable; 333. Flexible transmission cable; 4. Water storage structure; 41. Foldable water storage rack; 42. Sealing plate; 43. Water inlet structure; 431. Flow baffle; 432. Counterweight; 5. Lifting structure; 51. Rotating frame; 52. Lifting rod; 53. Connecting slider; 6. Lifting drive structure; 61. Lifting drive frame; 62. Rotating rod; 63. Lifting motor; 7. Buffer structure; 71. Sliding rod; 72. Buffer slider; 8. Transmission structure; 81. Transmission rod; 82. Placement plate; 83. Connecting groove; 9. Water supply structure; 91. Suction pipe; 92. Water supply pipe; 10. Spraying structure; 101. Spraying frame; 102. Mounting sleeve; 103. Electric telescopic rod; 104. Sprinkler head. Detailed Implementation

[0024] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0025] Please see Figure 1-8 As shown, this embodiment is a water spraying device for a fire rescue drone, including a base plate 1, a drone 2 fixedly connected to the upper end of the base plate 1, a connecting structure 3 fixedly connected to the lower end face of the base plate 1, a water storage structure 4 provided on the lower end face of the connecting structure 3, a lifting structure 5 symmetrically arranged between the connecting structure 3 and the water storage structure 4 along the center line, a lifting drive structure 6 provided in the middle of the inner cavity of the lifting structure 5, a buffer structure 7 fixedly connected to one side of the inner cavity of the connecting structure 3, a transmission structure 8 slidably connected to the outer surface of the buffer structure 7, a spraying structure 10 provided on the side of the transmission structure 8 away from the connecting structure 3, and a water conveying structure 9 provided between the spraying structure 10 and the water storage structure 4.

[0026] Furthermore, the drone 2 includes a drone body 21 fixedly connected to the middle of the upper surface of the base plate 1. The drone body 21 has a mounting groove 22 in the middle of its outer surface. Drone blades 23 are rotatably connected to the four corners of the inner cavity of the mounting groove 22. The drone 2 on the base plate 1 controls and adjusts the movement of the water spraying device during use.

[0027] Furthermore, the connection structure 3 includes connecting columns 31 that are uniformly fixedly connected to the four corners of the lower end face of the base plate 1. A connecting plate 32 is fixedly connected to the lower end face of the connecting column 31. A drive control component 33 is provided in the middle of the upper end face of the connecting plate 32. Through the connection structure on the base plate, the water storage structure, lifting structure, buffer structure and water conveying structure are installed and placed during use. Then, the operation of the lifting drive structure is driven and adjusted by the drive control component. The drive control component 33 includes a drive control module 331 fixedly connected to the middle of the upper surface of the connecting plate 32. Connecting cables 332 are driven to the middle of both sides of the drive control module 331. The connecting cables 332 pass through the connecting plate 32. An elastic transmission cable 333 is fixedly connected to the end of the connecting cable 332 away from the drive control module 331. The end of the elastic transmission cable 333 away from the connecting cable 332 is electrically connected to the lifting drive structure 6. Through the drive control component on the connecting structure, the operation of the lifting drive structure is driven and controlled by the power supply and control module in the drive control module during use. Furthermore, the elastic transmission cable can extend and retract to follow the movement of the lifting drive structure.

[0028] Furthermore, the water storage structure 4 includes a foldable water storage rack 41 fixedly connected to the lower end face of the connecting plate 32. A sealing plate 42 is fixedly connected to the lower end face of the foldable water storage rack 41. A water inlet is opened in the middle of the lower end face of the sealing plate 42. A water inlet structure 43 is set above the water inlet on the upper end face of the sealing plate 42. Through the water storage structure on the connecting structure, during use, the sealing plate and the foldable water storage rack are linked by the rotating rod, the lifting motor and the connecting slider. The mechanical linkage generates a negative pressure effect, and water can be pumped without additional power. Compared with the traditional pump suction method, energy consumption is reduced by more than 40%. The foldable water storage rack structure allows the volume to be expanded to three times the initial state, greatly increasing the amount of water taken at one time. Furthermore, through the extension and retraction of the foldable water storage rack, the water tank can be compressed in the non-working state, improving the payload efficiency of the UAV. After arriving at the fire scene, it can be quickly deployed through the adjustment of the lifting structure and the lifting drive structure, thereby realizing dynamic capacity adjustment. The water inlet structure 43 includes baffle plates 431 that are symmetrically rotated and connected to both sides above the water inlet via brackets. A counterweight 432 is fixedly connected to one end of the lower end face of the baffle plate 431. The size of the baffle plate 431 is larger than the size of the inner cavity of the water inlet. Through the water inlet structure on the water storage structure, the baffle plate and the counterweight form an inertial opening and closing system during use: during the water intake stage, the water flow impact causes the baffle plate to unfold, and during the transfer stage, the counterweight automatically triggers the seal through the shift of the center of gravity, forming a double protection.

[0029] Furthermore, the lifting structure 5 includes a rotating frame 51 symmetrically fixedly connected on both sides between the connecting plate 32 and the sealing plate 42 along the center line. A lifting rod 52 is rotatably connected to the inner cavity of the rotating frame 51. A connecting slider 53 is rotatably connected between two adjacent lifting rods 52 through the rotating frame 51. The connecting slider 53 is slidably connected to the inner cavity of the lifting drive structure 6. Through the lifting structure between the connecting structure and the water storage structure, the extension and retraction of the folding water storage rack can be adjusted by the sliding of the connecting slider and the rotation of the lifting rod during use, thus realizing the dynamic adjustment of the inner cavity capacity of the water storage structure.

[0030] Furthermore, the lifting drive structure 6 includes a lifting drive frame 61 slidably disposed between the connecting plate 32 and the sealing plate 42. A rotating rod 62 is rotatably connected to the inner cavity of the lifting drive frame 61. A connecting slider 53 is symmetrically slidably connected to the inner cavity of the lifting drive frame 61. Two oppositely oriented threads are symmetrically formed on the outer surface of the rotating rod 62. The rotating rod 62 passes through the connecting slider 53 and is threadedly connected. A lifting motor 63 is fixedly connected to the inner cavity of the lifting drive frame 61 between the rotating rods 62. The output end of the lifting motor 63 is fixedly connected to the rotating rod 62. The end of the elastic transmission cable 333 furthest from the connecting cable 332 is electrically connected to the lifting motor 63. Through the lifting drive structure on the lifting structure, during use… The lifting motor drives the rotating rod to rotate, causing the connecting sliders to move away from each other. This pushes the lifting rod to rotate, causing the sealing plate to move down and the foldable water storage rack to extend. The internal volume of the water storage structure expands, creating negative air pressure. Water is drawn directly through the air pressure difference. Compared to traditional drones that require an external water pump, this eliminates the need for pump startup and debugging, making the water intake process simpler and significantly improving efficiency. Furthermore, it can generate stable suction force simply by structural expansion and contraction, without relying on external conditions such as water depth and flow speed. It is suitable for diverse water areas such as rivers, lakes, and shallow water areas, and is especially suitable for complex and open water areas commonly encountered in fire rescue operations. This avoids the problem of water intake failure caused by water conditions limitations of traditional water pumps.

[0031] Furthermore, the buffer structure 7 includes a sliding rod 71 symmetrically fixedly connected between the connecting columns 31 on one side. A buffer slider 72 is symmetrically slidably connected to the outer surface of the sliding rod 71. A buffer spring is movably sleeved in the middle of the outer surface of the sliding rod 71. The buffer spring is driven between the two buffer sliders 72. A transmission structure 8 is provided on the front end face of the buffer slider 72. Through the buffer structure on the connecting structure, the transmission structure is installed and placed by the buffer slider during use. Then, the reaction force of the spraying structure is offset by the sliding of the buffer slider and the extension and contraction of the buffer spring.

[0032] Furthermore, the transmission structure 8 includes a transmission rod 81 rotatably connected to the front end face of the buffer slider 72 via a bracket. The end of the transmission rod 81 away from the buffer slider 72 is rotatably connected to a placement plate 82 via a bracket. A connecting groove 83 is provided in the middle of the front end face of the placement plate 82. A water conveying structure 9 is disposed in the inner cavity of the connecting groove 83. A spraying structure 10 is provided in the middle of the front end face of the connecting groove 83. Through the transmission structure on the buffer structure, the spraying structure is installed and placed during use. Then, through the rotation of the transmission rod, the reaction force of the spraying structure is transmitted, and then the water conveying structure and the spraying structure are connected and transmitted through the connecting groove.

[0033] Furthermore, the water conveying structure 9 includes a suction pipe 91 fixedly connected to the middle of the lower end face of the connecting plate 32. A gravity ball is fixedly connected to the lower end of the suction pipe 91. The inner cavity of the suction pipe 91 passes through the connecting plate 32 and the gravity ball. A water conveying pipe 92 is drivenly connected between the middle of the upper end face of the connecting plate 32 and the inner cavity of the connecting groove 83. The water conveying pipe 92 is specifically a corrugated pipe. The inner cavities of the suction pipe 91 and the inner cavities of the water conveying pipe 92 are interconnected. A water pump is fixedly connected to the lower end face of the connecting plate 32. The water pump is interconnected with the suction pipe 91. The water conveying structure on the connecting structure... During use, the modular combination of water pump, suction pipe and delivery pipe forms a stable water delivery link, avoiding leakage and pressure fluctuations during the water delivery process. This ensures that the water flow is stably delivered from the water storage structure to the spraying structure, providing a continuous and stable water source guarantee for subsequent precise spraying. Furthermore, the gravity ball under the suction pipe uses its own weight to drive the end of the suction pipe to always sink to the lowest point of the water flow in the inner cavity of the water storage structure, regardless of the drone's flight attitude such as pitch, roll, or hovering, ensuring that the end of the suction pipe is always submerged in water.

[0034] Furthermore, the spraying structure 10 includes a spraying frame 101 fixedly connected to the front end of the placement plate 82. An installation sleeve 102 is rotatably connected to the inner cavity of the spraying frame 101. Electric telescopic rods 103 are rotatably connected to the outer surfaces of the installation sleeve 102 and the placement plate 82 via brackets. A nozzle 104 is threadedly connected to the inner cavity of the installation sleeve 102. The rear end of the installation sleeve 102 is connected to the water supply pipe 92. Through the spraying structure on the transmission structure, the water flow delivered by the water supply structure is atomized and sprayed through the nozzles during use. At the same time, the installation sleeve allows personnel to easily replace nozzles of different sizes and functions as needed. Furthermore, through the electric telescopic rods on both sides of the front end of the placement plate, the installation sleeve is driven to rotate left and right in the inner cavity of the spraying frame by the difference in extension and retraction of the two telescopic rods, flexibly adjusting the spraying angle of the nozzles. It can spray accurately and precisely in real time according to the direction of the fire and the location of the rescue target, avoiding the blindness of traditional fixed-angle spraying, and greatly improving the targeting of fire fighting and rescue, especially suitable for scenarios that require key protection of local areas and precise suppression of fire points.

[0035] Working principle: When working, the drone 2 is started and moved to the corresponding water area. At this time, the drive control component 33 is started. The lifting drive structure 6 is made to work through the drive control module 331. Therefore, the output end of the lifting motor 63 rotates, so the rotating rod 62 rotates. Therefore, the connecting sliders 53 move away from each other, further pushing the lifting rod 52 to rotate relative to each other. Therefore, the sealing plate 42 moves downward, which in turn makes the foldable water storage rack 41 extend. At this time, due to the extension and contraction of the water storage structure 4, the air pressure in the cavity of the foldable water storage rack 41 decreases and forms a negative air pressure, so the water flow is sucked. At this time, due to the action of air pressure and water flow, the flow baffle 431 is reversed, so the water flow enters the cavity of the foldable water storage rack 41 through the water inlet on the sealing plate 42. When the water intake is complete, the drone 2 starts up and the propeller makes the whole device rise. Therefore, due to the action of the counterweight 432, the baffle 431 rotates in the opposite direction. Thus, the baffle 431 seals the inner cavity of the water storage structure 4, thereby controlling the drone 2 to move to the desired position. When spraying for rescue, the water supply structure 9 is activated, which starts the water pump under the connecting plate 32. The water flow inside the water storage structure 4 is then transported to the spraying structure 10 through the suction pipe 91 and the water supply pipe 92. Since there is a gravity ball under the suction pipe 91, the suction pipe 91 can stably draw water from the inside of the water storage structure 4 regardless of the flight attitude of the drone 2. Water drawn in by the water conveying structure 9 is sprayed through the nozzle 104. When it is necessary to change the spraying angle, the electric telescopic rods 103 on both sides of the front end of the placement plate 82 are activated. Through the extension and retraction of the electric telescopic rods 103 on both sides, the mounting sleeve 102 can rotate left and right in the inner cavity of the spray frame 101. During spraying, the reverse force of the spray causes the mounting sleeve 102 and the spray frame 101 to move backward, thus the connecting groove 83 slides backward, which in turn causes the transmission rod 81 to rotate relative to each other. As a result, the buffer slider 72 slides relative to each other, and the buffer spring extends and retracts. At this time, the extension and retraction of the buffer spring cancels out the reaction force of the spray structure 10 when spraying water, thus ensuring that the drone 2 can still fly stably when spraying water.

[0036] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, 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.

[0037] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0038] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A water spraying device for a fire rescue drone, comprising a base plate (1), characterized in that: The upper end of the base plate (1) is fixedly connected to a drone (2), the lower end face of the base plate (1) is fixedly connected to a connecting structure (3), the lower end face of the connecting structure (3) is provided with a water storage structure (4), the connecting structure (3) and the water storage structure (4) are symmetrically arranged along the center line with a lifting structure (5), the middle of the inner cavity of the lifting structure (5) is provided with a lifting drive structure (6), the inner cavity of the connecting structure (3) is fixedly connected to a buffer structure (7), the outer surface of the buffer structure (7) is slidably connected to a transmission structure (8), the side of the transmission structure (8) away from the connecting structure (3) is provided with a spraying structure (10), and a water conveying structure (9) is provided between the spraying structure (10) and the water storage structure (4).

2. The water spraying device for a fire-fighting and rescue drone according to claim 1, characterized in that, The drone (2) includes a drone body (21) fixedly connected to the middle of the upper surface of the base plate (1). A mounting groove (22) is provided in the middle of the outer surface of the drone body (21). Drone propellers (23) are rotatably connected to the four corners of the inner cavity of the mounting groove (22).

3. The water spraying device for a fire-fighting and rescue drone according to claim 1, characterized in that, The connection structure (3) includes connecting columns (31) that are uniformly fixedly connected to the four corners of the lower end face of the base plate (1), a connecting plate (32) is fixedly connected to the lower end face of the connecting column (31), and a drive control component (33) is provided in the middle of the upper end face of the connecting plate (32). The drive control component (33) includes a drive control module (331) fixedly connected to the middle of the upper surface of the connecting plate (32). The drive control module (331) is connected to the middle of both the left and right sides by a connecting cable (332). The connecting cable (332) passes through the connecting plate (32). The end of the connecting cable (332) away from the drive control module (331) is fixedly connected to an elastic transmission cable (333). The end of the elastic transmission cable (333) away from the connecting cable (332) is electrically connected to the lifting drive structure (6).

4. The water spraying device for a fire-fighting and rescue drone according to claim 3, characterized in that, The water storage structure (4) includes a foldable water storage rack (41) fixedly connected to the lower end face of the connecting plate (32). A sealing plate (42) is fixedly connected to the lower end face of the foldable water storage rack (41). A water inlet is provided in the middle of the lower end face of the sealing plate (42). A water inlet structure (43) is provided on the upper end face of the sealing plate (42) above the water inlet. The water inlet structure (43) includes a baffle plate (431) that is symmetrically rotated and connected to both sides above the water inlet by a bracket. A counterweight (432) is fixedly connected to one end of the lower end face of the baffle plate (431). The size of the baffle plate (431) is larger than the size of the inner cavity of the water inlet.

5. The water spraying device for a fire-fighting and rescue drone according to claim 4, characterized in that, The lifting structure (5) includes a rotating frame (51) symmetrically fixedly connected on both sides between the connecting plate (32) and the sealing plate (42) along the center line. The inner cavity of the rotating frame (51) is rotatably connected to a lifting rod (52). A connecting slider (53) is rotatably connected between two adjacent lifting rods (52) through the rotating frame (51). The connecting slider (53) is slidably connected in the inner cavity of the lifting drive structure (6).

6. The water spraying device for a fire-fighting and rescue drone according to claim 4, characterized in that, The lifting drive structure (6) includes a lifting drive frame (61) slidably disposed between the connecting plate (32) and the sealing plate (42). A rotating rod (62) is rotatably connected to the inner cavity of the lifting drive frame (61). A connecting slider (53) is symmetrically slidably connected to the inner cavity of the lifting drive frame (61). Two sections of threads with opposite directions are symmetrically opened on the outer surface of the rotating rod (62). The rotating rod (62) passes through the connecting slider (53) and is threadedly connected. A lifting motor (63) is fixedly connected between the rotating rod (62) in the inner cavity of the lifting drive frame (61). The output end of the lifting motor (63) is fixedly connected to the rotating rod (62). One end of the elastic transmission cable (333) away from the connecting cable (332) is electrically connected to the lifting motor (63).

7. A water spraying device for a fire-fighting and rescue drone according to claim 3, characterized in that, The buffer structure (7) includes a sliding rod (71) symmetrically fixed between the connecting columns (31) on one side. A buffer slider (72) is symmetrically slidably connected to the outer surface of the sliding rod (71). A buffer spring is movably sleeved in the middle of the outer surface of the sliding rod (71). The buffer spring is driven between the two buffer sliders (72). A transmission structure (8) is provided on the front end face of the buffer slider (72).

8. A water spraying device for a fire-fighting and rescue drone according to claim 7, characterized in that, The transmission structure (8) includes a transmission rod (81) rotatably connected to the front end of the buffer slider (72) via a bracket. The end of the transmission rod (81) away from the buffer slider (72) is rotatably connected to a placement plate (82) via a bracket. A connecting groove (83) is provided in the middle of the front end of the placement plate (82). A water conveying structure (9) is provided in the inner cavity of the connecting groove (83). A spraying structure (10) is provided in the middle of the front end of the connecting groove (83).

9. A water spraying device for a fire-fighting and rescue drone according to claim 8, characterized in that, The water conveying structure (9) includes a water suction pipe (91) fixedly connected to the middle of the lower end face of the connecting plate (32). A gravity ball is fixedly connected to the lower end of the water suction pipe (91). The inner cavity of the water suction pipe (91) passes through the connecting plate (32) and the gravity ball. A water conveying pipe (92) is connected between the middle of the upper end face of the connecting plate (32) and the inner cavity of the connecting groove (83). The water conveying pipe (92) is specifically a corrugated pipe. The inner cavity of the water suction pipe (91) and the inner cavity of the water conveying pipe (92) are interconnected. A water pump is fixedly connected to the lower end face of the connecting plate (32). The water pump is interconnected with the water suction pipe (91).

10. A water spraying device for a fire-fighting and rescue drone according to claim 8, characterized in that, The spraying structure (10) includes a spraying frame (101) fixedly connected to the front end face of the placement plate (82). The inner cavity of the spraying frame (101) is rotatably connected to an installation sleeve (102). The outer surfaces of the installation sleeve (102) are rotatably connected to the placement plate (82) via brackets, and an electric telescopic rod (103) is connected to the outer surface of the installation sleeve (102). The inner cavity of the installation sleeve (102) is threadedly connected to a nozzle (104). The rear end face of the installation sleeve (102) is connected to a water supply pipe (92).

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